10-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

þ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2014

Or

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File No. 001-35083

GSI Group Inc.

(Exact name of registrant as specified in its charter)

New Brunswick, Canada	98-0110412
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
125 Middlesex Turnpike	01730
Bedford, Massachusetts, USA	(Zip Code)
(Address of principal executive offices)

(781) 266-5700

(Registrant’s telephone number, including area code)

Securities Registered Pursuant to Section 12(b) of the Act:

Title of Each Class	Name of Exchange on Which Registered
Common Shares, no par value	The NASDAQ Stock Market LLC

Securities Registered Pursuant to Section 12(g) of the Act:

None

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.    Yes  ¨    No  þ

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Act.    Yes  ¨    No  þ

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  þ    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (Section 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  þ    No  ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K.  þ

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer ¨	Accelerated filer þ	Non-accelerated filer ¨	Smaller reporting company ¨
(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No   þ

The aggregate market value of the Registrant’s outstanding common shares held by non-affiliates of the Registrant, based on the closing price of the common shares on the NASDAQ Global Select Market on the last business day of the Registrant’s most recently completed second fiscal quarter (June 27, 2014) was $367,951,219. For purposes of this disclosure, common shares held by officers and directors of the Registrant and by persons who hold more than 5% of the Registrant’s outstanding common shares have been excluded because such persons may be deemed to be affiliates. This determination of affiliate status is not necessarily conclusive.

Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Section 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court.    Yes  þ    No  ¨

As of February 20, 2015, there were 34,239,720 of the Registrant’s common shares, no par value, issued and outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Registrant’s Definitive Proxy Statement for the Registrant’s Annual Meeting of Shareholders scheduled to be held on May 12, 2015 to be filed with the Securities and Exchange Commission are incorporated by reference in answer to Part III of this Annual Report on Form 10-K.

GSI GROUP INC.

FORM 10-K

YEAR ENDED DECEMBER 31, 2014

TABLE OF CONTENTS

Item No.		Page No.
PART I
Item 1.	Business	1
Item 1A.	Risk Factors	7
Item 1B.	Unresolved Staff Comments	18
Item 2.	Properties	18
Item 3.	Legal Proceedings	19
Item 4.	Mine Safety Disclosures	19
PART II
Item 5.	Market for Registrant’s Common Shares, Related Stockholders Matters and Issuer Purchases of Equity Securities	20
Item 6.	Selected Financial Data	21
Item 7.	Management’s Discussion and Analysis of Financial Condition and Results of Operation	24
Item 7A.	Quantitative and Qualitative Disclosures about Market Risk	42
Item 8.	Financial Statements and Supplementary Data	43
Item 9.	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	90
Item 9A.	Controls and Procedures	90
Item 9B.	Other Information	91
PART III
Item 10.	Directors, Executive Officers and Corporate Governance	92
Item 11.	Executive Compensation	92
Item 12.	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	92
Item 13.	Certain Relationships and Related Transactions, and Directors Independence	92
Item 14.	Principal Accounting Fees and Services	92
PART IV
Item 15.	Exhibits and Financial Statement Schedules	93
Signatures		96

As used in this report, the terms “we,” “us,” “our,” “GSI Group,” “GSI,” “GSIG” and the “Company” mean GSI Group Inc. and its subsidiaries, unless the context indicates another meaning.

Unless otherwise noted, all dollar amounts in this report are expressed in United States dollars.

The following brand and trade names of GSI Group Inc. are used in this report: MicroE Systems, Westwind, Synrad, JK Lasers, Cambridge Technology, ExoTec Precision, General Scanning, Photo Research, JADAK, NDS, Dome and NDSsi.

PART I

Cautionary Note Regarding Forward Looking Statements

Except for historical information, the matters discussed in this Annual Report on Form 10-K are forward looking statements that involve risks, uncertainties and assumptions that, if they never materialize or if they prove incorrect, could cause our consolidated results to differ materially from those expressed or implied by such forward looking statements. The Company makes such forward looking statements under the provision of the “Safe Harbor” section of the Private Securities Litigation Reform Act of 1995. Actual future results may vary materially from those projected, anticipated, or indicated in any forward looking statements as a result of various factors, including those set forth in Item 1A of this Annual Report on Form 10-K under the heading “Risk Factors.” Readers should also carefully review the risk factors described in the other documents that we file from time to time with the SEC. In this Annual Report on Form 10-K, the words “anticipates,” “believes,” “expects,” “intends,” “future,” “could,” “estimates,” “plans,” “would,” “should,” “potential,” “continues” and similar words or expressions (as well as other words or expressions referencing future events, conditions or circumstances) identify forward looking statements. Forward looking statements also include the assumptions underlying or relating to any of the foregoing statements. The forward looking statements contained in this Annual Report include, but are not limited to, statements related to: anticipated financial performance; expected liquidity and capitalization; drivers of revenue growth; management’s plans and objectives for future operations, expenditures and product development, and investments in research and development; business prospects; potential of future product releases; anticipated sales performance; industry trends; market conditions; changes in accounting principles; changes in actual or assumed tax liabilities; expectations regarding tax exposures; anticipated reinvestment of future earnings; anticipated expenditures in regard to the Company’s benefit plans; future acquisitions and dispositions and anticipated benefits from acquisitions; anticipated impact of the NDS impairment charge; anticipated use of currency hedges; ability to repay our indebtedness; our intentions regarding the use of cash; and other statements that are not historical facts. All forward looking statements included in this document are based on information available to us on the date hereof. We will not undertake and specifically decline any obligation to update any forward looking statements.

Item 1. Business

OVERVIEW

GSI Group Inc. and its subsidiaries (collectively referred to as the “Company”, “we”, “us”, “our”) design, develop, manufacture and sell precision photonic and motion control components and subsystems to Original Equipment Manufacturers (“OEM’s”) in the medical equipment and advanced industrial technology markets. Our highly engineered enabling technologies include laser sources, laser scanning and beam delivery products, optical data collection and machine vision technologies, medical visualization and informatics solutions and precision motion control products. We specialize in collaborating with OEM customers to adapt our component and subsystem technologies to deliver highly differentiated performance in their applications.

GSI Group Inc. was founded and initially incorporated in Massachusetts in 1968 as General Scanning, Inc. (“General Scanning”). General Scanning developed, manufactured and sold components and subsystems used for high-speed micro positioning of laser beams. In 1999, General Scanning merged with Lumonics Inc., a Canadian company that developed, manufactured and sold laser-based advanced manufacturing systems for electronics, semiconductor, and general industrial applications. The post-merger entity, GSI Lumonics Inc., continued under the laws of the Province of New Brunswick, Canada. In 2005, the Company changed its name to GSI Group Inc.

Strategy

Our strategy is to drive sustainable, profitable growth through short-term and long-term initiatives, including:

· improving our business mix to increase medical sales as a percentage of total revenue by:

- introducing new products aimed at attractive medical applications such as minimally invasive and robotic surgery, ophthalmology, patient monitoring, drug delivery, diagnostic testing and life science research;

- cross selling our entire product offering to the leading medical equipment manufacturers and;

- pursuing complementary medical technology acquisitions;

· increasing our penetration of high growth advanced industrial technology applications such as laser materials processing, robotics, automation, metrology, and via hole drilling by working closely with OEM customers to launch application specific products that closely match the requirements of each application;

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· broadening our portfolio of precision motion control products and capabilities through increased new product development investment in motion control product lines, expanded sales and marketing channels to reach target customers and, acquisitions of additional motion control product technologies used by existing customers;

· broadening our product and service offerings through the acquisition of innovative and complementary technologies and solutions in medical and advanced industrial technology applications;

· upgrading our existing operations to expand profit margins and improve customer satisfaction by implementing lean manufacturing principles and strategic sourcing across our major production sites; and

· attracting, retaining, and developing talented and motivated employees.

Acquisitions

In February 2015, GSI acquired Applimotion Inc., a Loomis, California-based provider of advanced precision motor and motion control technology to OEMs for advanced industrial and medical markets, for $13.9 million in cash, subject to customary working capital adjustments. The acquisition enhances the Company’s strategic position in precision motion control by enabling the Company to offer a broader range of motion control technologies and integrated solutions. The Applimotion business line will be reported as part of the Precision Motion segment.

In March 2014, GSI acquired JADAK LLC, JADAK Technologies Inc. and Advance Data Capture Corporation (together, “JADAK”), a North Syracuse, New York-based provider of optical data collection and machine vision technologies to OEM medical device manufacturers, for $93.7 million in cash, net of working capital adjustments.

In January 2013, GSI acquired NDS Surgical Imaging (“NDS”) for a final adjusted purchase price of $75.4 million. NDS is a San Jose, California-based company that designs, manufactures, and markets high definition visualization solutions and imaging informatics products for the surgical, radiology and patient monitoring end markets.

Divestitures and Restructuring

Since 2011, we have executed a series of strategic divestures to improve our business mix and financial performance. In October 2012, we divested the Lasers Systems business, operated under the Control Laser and Baublys brand names, for $6.6 million, net of final working capital adjustments. In May 2013, we sold the Semiconductor Systems business, operated under the GSI Group brand name, for $9.7 million, including final working capital adjustments. In July 2014, we completed the sale of our Scientific Lasers business, operated under the Continuum brand name, for $6.5 million in cash, net of working capital adjustments.  These businesses have been reported as discontinued operations in our consolidated financial statements for all periods presented in this annual report on Form 10-K.

Since 2011, our strategic initiatives resulted in the elimination of thirteen facilities, including seven facilities exited as part of the sale of the Semiconductor Systems, Laser Systems and Scientific Lasers product lines. These eliminations also resulted in the consolidation of our optics production facilities, consolidation of our German and Japanese sales and service operations into one facility in Germany and Japan, respectively, and consolidation of our laser scanners business into our Bedford, Massachusetts facility.

Segments

The Company evaluates the performance of, and allocates resources to, its segments based on sales, gross profit and operating profit. The Company’s reportable segments have been identified based on commonality of technologies, applications, end markets and customers amongst the Company’s individual product lines, and are consistent with the Company’s operating structure.

The following table shows the external revenues and gross profit margin for each of the segments for the year ended December 31, 2014 (dollars in thousands):

	Sales		Gross Profit Margin
Laser Products	$	177,726		41.8	%
Medical Technologies		122,187		39.8	%
Precision Motion		64,793		43.7	%
Total	$	364,706		41.2	%

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See Note 16 to Consolidated Financial Statements for additional financial information about our reportable segments.

Laser Products

The Laser Products segment designs, manufactures and markets photonics-based solutions to customers worldwide. The segment serves highly demanding photonics-based applications such as industrial material processing, and medical and life science imaging and laser procedures. The vast majority of the segment’s product offerings are sold to Original Equipment Manufacturer customers. The segment sells these products both directly, utilizing a highly technical sales force, and indirectly, through resellers and distributors.

The Laser Products segment is comprised of three major product lines:

Product Line	Key End Market	Brand Names	Description
Beam Delivery	Industrial, Medical and Electronics	Cambridge Technology, Synrad, JK Lasers, & ExoTec Precision	Galvanometer laser scanners and laser scanning solutions, such as laser scanheads. These products provide rapid, precise control and delivery of laser beams through motorized manipulation of mirrors and optical elements in three dimensions. Applications include material processing (such as laser marking, laser machining and laser drilling), scanning microscopy, laser-based vision correction, optical coherence tomography imaging, high resolution printing, holographic imaging and storage, metrology, and 2D or 3D imaging. Laser processing heads, which are used for laser cutting and welding as well as for brazing in the advanced manufacturing industry.
CO2 Lasers	Industrial	Synrad, JK Laser	Applications include coding, marking, engraving, and cutting of non-metals, laser sintering, laser converting, and laser aesthetics.
Fiber Lasers	Industrial and Electronics	JK Lasers	Applications include material processing (such as laser cutting, machining, welding and drilling), laser sintering, laser converting, additive manufacturing and micromachining.

Medical Technologies

The Medical Technologies segment designs, manufactures and markets a range of medical grade technologies, including visualization solutions, imaging informatics products, optical data collection and machine vision technologies, thermal printers, and light and color measurement instrumentation to customers worldwide. The vast majority of the segment’s product offerings are sold to Original Equipment Manufacturer customers. The segment sells these products both directly, utilizing a highly technical sales force, and indirectly, through resellers and distributors.

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The Medical Technologies segment has five major product lines:

Product Line	Key End Market	Brand Names	Description
Visualization Solutions	Medical	NDS, NDSsi, Dome	High definition visualization solutions for minimal invasive surgery, patient monitoring and diagnostic radiology applications.
Imaging Informatics	Medical	NDS, NDSsi	Imaging management for visual information, including real-time distribution, documentation, control, and streaming for multiple imaging modalities for surgical applications.
Optical Data Collection and Machine Vision Technologies	Medical and Industrial	JADAK	Data collection solutions ranging from camera based technologies for barcode scanning operations to wireless technologies such as Radio Frequency Identification (RFID). Optimized optical and software platforms performing everything from basic barcode reading applications to more complex functions such as machine vision for the purpose of image analysis within medical devices.
Thermal Printers	Medical	General Scanning, NDSsi	Rugged thermal paper printers for patient monitoring, defibrillator equipment, blood gas analyzers, and pulse oximeters.
Light and Color Measurement	Industrial, Electronics and Medical	Photo Research	Light and color measurement metrology devices, including spectroradiometers, photometers, video photometers, and color characterization software used in the visualization solutions market, research and development, quality control, and other testing markets.

Precision Motion

The Precision Motion segment designs, manufactures and markets optical encoders and air bearing spindles and precision machined components to customers worldwide. The vast majority of the segment’s product offerings are sold to Original Equipment Manufacturer customers. The segment sells these products both directly, utilizing a highly technical sales force, and indirectly, through resellers and distributors.

The Precision Motion segment includes two major product lines:

Product Line	Key End Market	Brand Names	Description
Optical Encoders	Electronics, Industrial and Medical	MicroE Systems	Linear and rotary electro-optical positioning devices that measure movement with sub-micron accuracy. Applications include motion control of semiconductor and electronic manufacturing equipment, confocal microscopes, coordinate measuring systems, drug dispensing, and robotic equipment, including medical equipment.
Air Bearing Spindles	Electronics and Industrial	Westwind	High-speed and precision air bearing spindles used in the PCB manufacturing, automotive coating, semiconductor manufacturing equipment, and power generation markets.

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Customers

We have a diverse group of customers that include companies that are global leaders in their industries. Many of our customers participate in several market industries. No customer accounted for greater than 10% of our consolidated sales during the years ended December 31, 2014, 2013 or 2012.

Customers of our Laser Products, Medical Technologies, and Precision Motion segments include a large number of original equipment manufacturers who integrate our products into their systems for sale to end users. We also sell directly to end users. Our customers include leaders in the medical, industrial, and electronics markets. A typical OEM customer will usually evaluate our products and our ability to provide application support and customization before deciding to incorporate our products into their products or systems. Customers generally choose suppliers based on a number of factors, including product performance, reliability, application support, price, breadth of the supplier’s product offerings, the financial condition of the supplier and the geographical coverage offered by the supplier. Once certain of our products have been designed into a given OEM customer’s product or system, there are generally significant barriers to subsequent supplier changes, especially in the medical market.

Seasonality

While our sales are not highly seasonal on a consolidated basis, the sales of some of our individual product lines, particularly our visualization solutions, imaging informatics, and thermal printer products, are impacted by seasonality due to hospital budgeting cycles.

Backlog

As of December 31, 2014 and 2013, our consolidated backlog was approximately $82.1 million and $67.2 million, respectively. The majority of orders included in backlog represent open orders for products and services that, based on management’s projections, have a reasonable probability of being delivered over the subsequent twelve month period. Orders included in backlog may be canceled or rescheduled by customers without significant penalty. Management believes that backlog is not a meaningful indicator of future business prospects for any of our business segments due to the wide range of lead times required by our various types of customers and the ability of our customers to reschedule or cancel orders. Therefore, backlog as of any particular date should not be relied upon as indicative of our revenues for any future period.

Manufacturing

Manufacturing functions are performed internally when management chooses to maintain control over critical portions of the production process or for cost related reasons. To the extent it makes financial sense, we will consider outsourcing additional portions of the production process.

Products offered by our Laser Products segment are manufactured at facilities in Bedford, Massachusetts; Mukilteo, Washington; Rugby and Taunton, United Kingdom; and Suzhou, China. Products offered by our Medical Technologies segment are manufactured at facilities in Bedford, Massachusetts; Syracuse, New York; San Jose and Chatsworth, California; and Suzhou, China. Products offered by our Precision Motion segment are primarily manufactured at facilities in Bedford, Massachusetts; Poole, United Kingdom; and Suzhou, China.

Many of our products are manufactured under ISO 9001 certification and our visualization solutions, imaging informatics, thermal printers, and optical encoders products are manufactured under ISO13485 certification. Certain visualization solutions and imaging informatics products are manufactured under current good manufacturing practices (CGMP’s), which is a requirement of their medical device classification by the U.S. Food and Drug Administration (the “FDA”). In addition, certain visualization solutions and imaging informatics products are manufactured under section 510(k) of the FDA.

Research and Development and Engineering

We incur research and development and engineering expenses as part of our ongoing operations. The following table shows total research and development and engineering expenses as a percent of total sales for the years ended December 31, 2014, 2013 and 2012 (dollars in thousands):

	2014			2013			2012
Research and development and engineering expenses	$	28,954		$	23,787		$	18,530
As a percentage of sales		7.9	%		7.5	%		7.6	%

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We are strongly committed to research and development for core technology programs directed at creating new products, product enhancements and new applications for existing products. We are also committed to funding research into future market opportunities. Our markets have experienced rapid technological changes and product innovations. We believe that continued timely development of new products and product enhancements to serve existing and new markets is necessary for us to remain competitive.

Marketing, Sales and Distribution

We sell our products worldwide through our direct sales force and through distributors, including manufacturers’ representatives. Our local sales, applications and service teams and our distributors work closely with our customers to ensure customer satisfaction with our products. We have sales and service centers located in North America, Europe, Asia Pacific, and Japan.

Competition

The markets in which we compete are dynamic and highly competitive. Due to the wide range of our products, we face many different types of competition and competitors. This affects our ability to sell our products and the prices at which these products are sold. Our competitors range from large foreign and domestic organizations, which produce a comprehensive array of goods and services and may have greater financial and other resources than we do, to small firms producing a limited number of goods or services for specialized market segments.

Competitive factors in our Laser Products, Medical Technologies, and Precision Motion segments include product performance, price, quality and reliability, features, compatibility of products with existing systems, technical support, product breadth, market presence, on-time delivery and our overall reputation. We believe that our products offer a number of competitive advantages. However, some of our competitors are substantially larger and have greater financial and other resources.

Raw Materials, Components and Supplies

Each of our businesses uses a wide variety of raw materials, key components and parts that are generally available from alternative sources of supply and in adequate quantities from domestic and foreign sources. In some instances, we design and/or re-engineer the parts and components used in our products. For certain critical raw materials, key components and parts used in the production of some of our principal products, we have identified only a limited number of suppliers or, in some instances, a single source of supply. We also rely on a limited number of independent contractors to manufacture subassemblies for some of our products.

For a further discussion of the importance and risks associated with our supply chain, see applicable risk factors under Item 1A of this Annual Report on Form 10-K.

Patents and Intellectual Property

We rely upon a combination of copyrights, patents, trademarks, trade secret laws and restrictions on disclosure to protect our intellectual property rights. We hold a number of registered and pending patents in the United States and other countries. In addition, we also have trademarks registered in the United States and foreign countries. We will continue to actively pursue applications for new patents and trademarks as we deem appropriate. However, there can be no assurance that any other patents will be issued to us or that such patents, if and when issued, will provide any protection or benefit to us.

Although we believe that our patents and pending patent applications are important, we rely upon several additional factors that are essential to our business success, including: market position, technological innovation, know-how, application knowledge and product performance. There can be no assurance that we will be able to sustain these advantages.

We also protect our proprietary rights by controlling access to our proprietary information and by maintaining confidentiality agreements with our employees, consultants, and certain customers and suppliers. For a further discussion of the importance of risks associated with our intellectual property rights, see applicable risk factors under Item 1A of this Annual Report on Form 10-K.

Human Resources

As of December 31, 2014 and 2013, we employed 1,418 and 1,287 employees, respectively. As of December 31, 2014 and 2013, there were 36 and 109 employees, respectively, of our discontinued businesses.

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Geographic Information

We are a multinational company with approximately 61% of our 2014 sales outside the United States and approximately 18% of our property, plant and equipment, net, outside the United States at December 31, 2014. Geographic information is discussed in Note 16 to Consolidated Financial Statements. For a further discussion of the risks associated with our foreign operations, see applicable risk factors under Item 1A of this Annual Report on Form 10-K.

Government Regulation

Our current and contemplated activities and the products and processes that will result from such activities are subject to substantial government regulations, both in the United States and internationally.

United States Food and Drug Administration

Certain products manufactured by us are integrated into systems by our customers that are subject to certain regulations administered by the United States Food and Drug Administration. We must comply with certain quality control measurements in order for our products to be effectively used in our customers’ end products. Non-compliance with quality control measurements could result in loss of business with our customers, fines and penalties.

We are subject to certain medical device regulations. Medical devices are subject to extensive and rigorous regulation by the Food and Drug Administration and by other federal, state and local authorities. The Federal Food, Drug and Cosmetic Act and related regulations govern the conditions of safety, efficacy, clearance, approval, manufacturing, quality system requirements, labeling, packaging, distribution, storage, record keeping, reporting, marketing, advertising, and promotion of products. Non-compliance with applicable requirements can result in, among other things, fines, injunctions, civil penalties, recall or seizure of products, total or partial suspension of production, refusal by the government to grant premarket clearance or approval of products, withdrawal of clearances and approvals, and criminal prosecution.

Other Information

We maintain a website with the address www.gsig.com. We are not including the information contained in our website as part of, or incorporating it by reference into, this Annual Report on Form 10-K. We make available, free of charge through our website, our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments to these reports as soon as reasonably practicable after we electronically file these materials with, or otherwise furnish them to, the Securities and Exchange Commission (“SEC”). In addition, our reports and other information are filed with securities commissions or other similar authorities in Canada, and are available over the Internet at www.sedar.com.

Item 1A. Risk Factors

The following risk factors could have a material adverse effect on our business, financial position, results of operations and cash flows and could cause the market value of our common shares to fluctuate or decline. These risk factors may not include all of the important factors that could affect our business or that could cause our future financial results to differ materially from historic or expected results or cause the market price of our common shares to fluctuate or decline.

Risks Relating to our Business

Our results of operations could be adversely affected by economic and political conditions and the effects of these conditions on our customers’ businesses and levels of business activities.

A large portion of our product sales are dependent on the need for increased capacity or replacement of inefficient manufacturing processes. These sales tend to lag behind other businesses in an economic recovery. Weaknesses in our end markets could negatively impact our revenue, gross margin and operating expenses and consequently have a material adverse effect on our business, financial condition and results of operations. For instance, uncertainty in our medical and industrial end markets has caused customers in those markets to purchase fewer products from us during certain recent quarters. If such uncertainty continues or worsens, we may not be able to meet anticipated revenue levels on a quarterly or annual basis. Moreover, a severe and/or prolonged economic downturn or a negative or uncertain political climate could adversely affect our customers’ financial condition and the timing or levels of business activity of our customers and the industries we serve. In particular, reduced growth expectations in China and the uncertain European financial situation could have an impact on our customers’ financial condition and ability to maintain product orders in the future. This may reduce the demand for our products or depress pricing for our products and have a material adverse effect on our results of operations. Changes in global economic conditions could also shift demand to products or services for which we do not have competitive advantages, and this could negatively affect the amount of business that we are able to obtain. In addition, if we are unable to successfully anticipate changing economic and political conditions, we may be unable to effectively plan for and respond to those changes, and our business could be negatively affected.

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Our business depends significantly upon our customers’ capital expenditures, which are subject to cyclical market fluctuations.

The electronics materials processing industries are cyclical and have historically experienced periods of oversupply, resulting in downturns in demand for capital equipment, in which many of our products are used. The timing, length and severity of these cycles, and their impact on our business, are difficult to predict. Further, our order levels or results of operations for a given period may not be indicative of order levels or results of operations for subsequent periods. For the foreseeable future, our operations will continue to depend upon industries that are subject to market cycles which, in turn, could adversely affect the market for our products.

We experienced significant cyclical fluctuations in the past. We cannot assure you that such slowdowns will not recur or that the impact of such slowdowns will be more or less significant compared to historical fluctuations.

Our business success depends upon our ability to respond to fluctuations in product demand, but doing so may require us to incur costs despite limited visibility toward future business declines.

In periods of weak demand, we may be required to reduce costs while maintaining the ability to motivate and retain key employees at the same time. Additionally, to remain competitive, we must also continually invest in research and development, which may inhibit our ability to reduce costs in a down cycle. Long product lead-times create a risk that we may purchase or manufacture inventories of products that we are unable to sell.

During a period of increasing demand and rapid growth, we must be able to increase manufacturing capacity quickly. Our inability to quickly increase production in response to a surge in demand could prompt customers to look for alternative sources of supply or leave our customers without a supply, both of which events could harm our reputation and make it difficult for us to retain our existing customers or to obtain new customers.

The success of our business requires that we continually innovate.

Technology requirements in our markets are constantly advancing. We must continually introduce new products that meet evolving customer needs. Our ability to grow depends on the successful development, introduction and market acceptance of new or enhanced products that address our customer’s requirements. Developing new technology is a complex and uncertain process requiring us to accurately anticipate technological and market trends and meet those trends with responsive products. Additionally, this requires that we manage the transition from older products to minimize disruption in customer ordering patterns, avoid excess inventory and ensure adequate supplies of new products. Failure to develop new products, failed market acceptance of new products or problems associated with new product transitions could harm our business.

If we fail to introduce new products in a timely manner, we may lose market share and be unable to achieve revenue growth targets.

Our research and development efforts may not lead to the successful introduction of products within the time period our customers demand. Our competitors may introduce new or improved products, processes or technologies that make our current or proposed products obsolete or less competitive. We may encounter delays or problems in connection with our research and development efforts. Product development delays may result from numerous factors, including:

· changing product specifications and customer requirements;

· inability to manufacture new products cost effectively;

· difficulties in reallocating engineering resources and overcoming resource limitations;

· changing market or competitive product requirements; and

· unanticipated engineering complexities.

New products often take longer to develop, may have fewer features than originally considered desirable and have higher costs than initially estimated. There may be delays in starting volume production of new products and/or new products may not be commercially successful. There may also be difficulty in sourcing components for new products. Any of these developments could harm our business, including our results of operations.

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Customer order timing and other factors beyond our control may cause our operating results to fluctuate from period to period.

Changes in customer order timing and the existence of certain other factors beyond our control may cause our operating results to fluctuate from period to period. Such factors include:

· fluctuations in our customers’ businesses;

· timing and recognition of revenues from customer orders;

· timing and market acceptance of new products or enhancements introduced by us or our competitors;

· availability of parts from our suppliers and the manufacturing capacity of our subcontractors;

· decisions by customers to reduce their purchases of our products;

· changes in the prices of our products or of our competitors’ products; and

· fluctuations in exchange rates of foreign currencies.

Certain of our sales come from products with high selling prices and significant lead times. We may receive several large orders in one quarter from a customer and then receive no orders from that customer in the next quarter. As a result, the timing and recognition of sales from customer orders can cause significant fluctuations in our operating results from quarter to quarter. In addition, our sales are reactive to changes in our customers’ businesses. For instance, a customer that placed a large order in one period could subsequently experience a downturn in business and, as a result, could cancel an order or reduce the amount of products it purchases from us in future periods.

A delay in a shipment or failure to meet our revenue recognition criteria near the end of a reporting period due, for example, to rescheduling or cancellations by customers or to unexpected difficulties experienced by us may cause sales in the period to decline significantly and may have a material adverse effect on our operations for that period.

We cannot predict how the market will react to new products produced by us or to enhancements made to our existing products. If any of our new or enhanced products contain defects or perceived defects or have reliability, quality or compatibility problems or perceived problems, or if our competitors release similar products or enhancements at the same time as us that are more widely accepted by our customers, our sales and results of operations for one or more reporting periods could be adversely affected.

In addition, we or our competitors may raise or lower the prices of products in response to market demands or competitive pressures. If we lower the prices of our products, or if our competitors lower the prices of their products such that demand for our products weakens, our sales for one or more quarters may decline and our operating results would be adversely affected.  Changes in foreign currency exchange rates can also cause significant fluctuations in our results of operations from quarter to quarter.

As a result of these factors, our results of operations for any quarter are not necessarily indicative of results to be expected in future periods.

If we experience a significant disruption in, or breach in security of, our information technology systems, our business may be adversely affected.

We rely on information technology systems throughout the Company to manage orders, process shipments to customers, manage inventory levels and maintain financial information. Events could result in the disruption of our systems, including power outages, computer attacks by hackers, viruses, catastrophes, hardware and software failures and other unforeseen events. If we were to experience a significant period of system disruption in information technology systems that involve our interactions with customers or suppliers, it could result in the loss of sales and customers and significant incremental costs, which could adversely affect our business. In addition, security breaches of our information technology systems could result in the misappropriation or unauthorized disclosure of confidential information belonging to us or to our employees, partners, customers or suppliers, which could result in significant financial or reputational damage to us.

As we transact a portion of our sales, and maintain significant cash balances, in foreign currencies, changes in interest rates, credit ratings or foreign currency rates could have a material adverse effect on our operations, financial position, results of operations, and cash flows.

A portion of our sales are derived from our European and Asian operations and include transactions in Euros, British Pounds and Japanese Yen, while our products are mainly manufactured in the United States, United Kingdom and China. In the event of a decline in the value of the Euro, Japanese Yen or British Pound, we would typically experience a decline in our revenues and profit margins. If we increase the sale prices on our products sold in Europe and Japan in order to maintain profit margins and recover costs, we may lose customer sales to lower cost competitors.

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Additionally, balances we maintain in foreign currencies create additional financial exposure to changing currency rates. We have in the past, and may in the future, attempt to mitigate these risks by purchasing foreign currency exchange contracts, and by investing in United States government issued treasury bills. However, if foreign currency rates were to change rapidly, we could incur material losses.

Our reliance on international operations in foreign countries subjects us to risks not typically faced by companies operating exclusively in the United States.

During the year ended December 31, 2014, approximately 61% of our revenues from continuing operations were derived from operations and customers outside of the United States. The scope of our international operations subjects us to risks which could materially impact our results of operations, including:

· foreign exchange rate fluctuations;

· increases in shipping costs or increases in fuel costs;

· longer customer payment cycles;

· greater difficulty in collecting accounts receivable;

· use of incompatible systems and equipment;

· problems with staffing and managing foreign operations in diverse cultures;

· protective tariffs;

· trade barriers and export/import controls;

· transportation delays and interruptions;

· increased vulnerability to the theft of, and reduced protection for, intellectual property rights;

· government currency control and restrictions, delays, penalties or required withholdings on repatriation of earnings;

· the impact of recessionary foreign economies; and

· acts of terrorism.

We cannot predict whether the United States or any other country will impose new quotas, tariffs, taxes or other trade barriers upon the importation or exportation of our products or supplies or gauge the effect that new barriers would have on our financial position or results of operations.

We also are subject to risks that our operations outside the United States could be conducted by our employees, contractors, service providers, representatives or agents in ways that violate the Foreign Corrupt Practices Act or other similar anti-bribery laws. Any such violations could have a negative impact on our business and could result in government investigations and/or injunctive, monetary or other penalties. Moreover, we face additional risks that our anti-bribery policy and procedures may be violated by third-party sales representatives or other agents that help sell our products or provide other services, because such representatives or agents are not our employees and it may be more difficult to oversee their conduct.

Increased outsourcing of components manufacturing to manufacturers outside the United States leads to additional risks which could negatively impact our business.

We are increasingly outsourcing the manufacture of subassemblies to suppliers based in China and elsewhere overseas in order to reduce our manufacturing cost. However, economic, political or trade problems with foreign countries could substantially impact our ability to obtain critical parts needed in the timely manufacture of our products. Additionally, this practice increases our vulnerability to the theft of, and reduced protection for, our intellectual property.

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Our global operations are subject to extensive and complex import and export rules that vary among the legal jurisdictions in which we operate. Failure to comply with these rules could result in substantial penalties.

Due to the international scope of our operations, we are subject to a complex system of import and export related laws and regulations, including U.S. export control and customs regulations and customs regulations of other countries. These regulations are complex and vary among the legal jurisdictions in which we operate. Any alleged or actual failure to comply with such regulations may subject us to government scrutiny, investigation and civil and criminal penalties, and may limit our ability to import or export our products or to provide services outside the United States. Any of these penalties could have a material impact on our financial position, results of operations and cash flows.

We are exposed to the credit risk of some of our customers and to credit exposures in weakened markets, which could adversely affect our results of operations.

Customers with liquidity issues may lead to additional bad debt expense. There can be no assurance that our open credit customers will pay the amounts they owe to us or that the reserves we maintain will be adequate to cover such credit exposure. In addition, to the extent that turmoil in the credit markets makes it more difficult for some customers to obtain financing, those customers’ ability to pay may be adversely impacted. Our customers’ failure to pay and/or our failure to maintain sufficient reserves could have a material adverse effect on our operating results and financial condition.

Our reliance upon third party distribution channels subjects us to credit, inventory, business concentration, and business failure risks beyond our control.

We sell many of our products through resellers, distributors, and system integrators. As these third parties tend to have more limited financial resources than OEMs and end-user customers, they generally represent sources of increased credit risk. Any downturn in the business of our resellers, distributors, and systems integrators would in turn harm our results of operations or financial condition.

Our sales also depend upon the ability of our OEM customers to develop and sell systems that incorporate our products. Adverse economic conditions, large inventory positions, limited marketing resources and other factors influencing these OEM customers could have a substantial adverse effect on our financial results. We cannot assure investors that our OEM customers will not experience financial or other difficulties that could adversely affect their operations and, in turn, our financial condition or results of operations.

Others may violate our intellectual property rights and cause us to incur significant costs to protect our rights.

Our future success depends in part upon our intellectual property rights, including trade secrets, know-how and continuing technological innovation. We do not have personnel dedicated to the oversight, organization and management of our intellectual property. There can be no assurance that the steps we take to protect our intellectual property rights will be adequate to prevent misappropriation or disclosure, or that others will not develop competitive technologies or products outside of our patented intellectual property. It is possible that, despite our efforts, other parties may use, obtain or try to copy our technology and products. There can be no assurance that other companies are not investigating or developing other technologies that are similar to ours, that any patents will be issued from any application filed by us or that, if patents are issued, the claims allowed will be sufficient to deter or prohibit others from marketing similar products. In addition, our patents may be challenged, invalidated or circumvented in a legal or administrative proceeding. Policing unauthorized use of our intellectual property rights is difficult and time consuming and may involve initiating claims or litigation against third parties for infringement of our proprietary rights, which could be costly.

Our efforts to protect our intellectual property rights against infringement may not be effective in some foreign countries where we operate or sell our products. If we fail to adequately protect our intellectual property in these countries, we may lose significant business to our competitors.

Our operating results would suffer if we are unable to successfully defend against claims of infringement by third parties.

We have received in the past, and could receive in the future, notices from third parties alleging that our products infringe patent or other proprietary rights. We believe that our products are non-infringing or that we have the patents and/or licenses to allow us to lawfully sell our products throughout the world. However, we may be sued for infringement. In the event any third party makes a valid claim against us or our customers for which a license was not available to us on commercially reasonable terms, our operating results would be adversely affected. Adverse consequences may also apply to our failure to avoid litigation for infringement or misappropriation of proprietary rights of third parties.

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We operate in highly competitive industries and, if we lose competitive advantages, our business would suffer adverse consequences.

Some of our competition comes from established competitors that have greater financial, engineering, manufacturing and marketing resources than we do. Our competitors will continue to improve the design and performance of their products and introduce new products. It is possible that we may not successfully differentiate our current and proposed products from the products of our competitors, or that the marketplace will not consider our products to be superior to competing products. To remain competitive, we will be required to invest heavily in research and development, marketing and customer service and support. However, we may not be able to make the necessary technological advances to maintain our competitive position and our products may not receive market acceptance. These factors would cause us not to be able to compete successfully in the future. Increased competition may also result in price reductions, reduced profit margins, loss of market share and an inability to generate cash flows that are sufficient to maintain or expand our development of new products.

Our results of operations will be adversely affected if we fail to successfully integrate future acquisitions into our business or to grow the acquired businesses.

As part of our business strategy, we expect to broaden our product and service offerings by acquiring businesses, technologies, assets and product lines that we believe complement or expand our existing businesses. We have made, and expect to continue to make, acquisitions. We may fail to successfully integrate acquisitions into our business and, as a result, may fail to realize the synergies, cost savings and other benefits expected from acquisitions. If we are not able to successfully achieve these objectives, the anticipated benefits of such acquisitions may not be realized fully or at all, and our results of operations could be adversely affected.

Further, our ability to maintain and increase profitability of an acquired business will depend on our ability to manage and control operating expenses and to generate and sustain increased levels of revenue. Our expectations to achieve more consistent and predictable levels of revenue and to increase profitability as a result of any acquisition may not be realized. Such revenues and profitability may even decline as we integrate operations into our business. If revenues of acquired businesses grow more slowly than we anticipate or decline, or if their operating expenses are higher than we expect, we may not be able to sustain or increase their profitability, in which case our financial condition will suffer and our stock price could decline. For example, reductions in orders by a customer within our Visualization Solutions product line have caused our revenues in that business in 2013 and 2014 to be lower than we had expected when we acquired the business. Moreover, our acquisition activities may divert management’s attention from our regular operations and managing a larger and more geographically dispersed operation and product portfolio could pose challenges for our management. In addition, through our acquisitions, we may assume liabilities, losses or costs for which we are not indemnified or insured or for which our indemnity or insurance is inadequate. Any such liabilities may have a material adverse effect on our financial position or results of operations.

Our business strategy may include making strategic divestitures. There can be no assurance that any divestitures will provide business benefit.

Our business strategy includes divesting certain non-core businesses. We sold certain assets and liabilities of our Laser Systems businesses in October 2012. During the second quarter of 2013, we sold our Semiconductor Systems business, and in July 2014, we sold our Scientific Lasers business. There may be additional sales of other non-core businesses in the future. The divestiture of an existing business could reduce our future profits and operating cash flows and make our financial results more volatile. A divestiture could also cause a decline in the price of our common shares and increased reliance on other elements of our core business operations. If we do not successfully manage the risks associated with a divestiture, our business, financial condition, and results of operations could be adversely affected. In addition, there could be other negative unforeseen effects from a divestiture. We also may not find suitable purchasers for our non-core businesses and may continue to pay operating costs associated with these businesses. Failed attempts to divest non-core businesses may distract management’s attention from other business activities, erode employee morale and customers’ confidence and harm our business.

If we do not attract and retain our key personnel, our ability to execute our business strategy will be limited.

Our success depends, to a significant extent, upon the continued service of our executive officers and key management and technical personnel, particularly our experienced engineers, and upon our ability to continue to attract, retain, and motivate qualified personnel. The competition for these employees is intense. The loss of the services of one or more of our key personnel could have a material adverse effect on our operating results. In addition, there could be a material adverse effect on us should the turnover rates for engineers and other key personnel increase significantly or if we are unable to continue to attract qualified personnel.

Our success also depends on our ability to execute leadership succession plans. The inability to successfully transition key management roles could have a material adverse effect on our operating results.

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We have undertaken restructuring and realignment activities in the past, and we will continue to assess our operating structure in the future. These actions may not improve our financial position, and may ultimately prove detrimental to our operations and sales.

Our ability to reduce operating expenses is dependent upon the nature of the actions we take to reduce expenses and our subsequent ability to implement those actions and realize expected cost savings. If global conditions deteriorate and unfavorably impact our business, we may need to take additional restructuring actions, such as eliminating or consolidating certain of our facilities, reducing our headcount or eliminating certain positions. Failure to successfully implement such restructuring activities could adversely affect our ability to meet customer demand for our products and could increase the cost of production versus our projections, both of which could adversely impact our operating and financial results. Further, expenses and cost inefficiencies associated with our restructuring activities, including severance costs and the loss of trained employees with knowledge of our business and operations, could exceed our expectations and negatively impact our financial results. The elimination or consolidation of operations could also result in restructuring charges that could adversely affect our results of operations and financial condition.

Product defects or problems with integrating our products with other vendors’ products may seriously harm our business and reputation.

We produce complex products that can contain latent errors or performance problems. This could happen to both existing and new products. Such defects or performance problems could be detrimental to our business and reputation.

In addition, customers frequently integrate our products with other vendors’ products. When problems occur in a combined environment, it may be difficult to identify the source of the problem. These problems may cause us to incur significant warranty and repair costs, divert the attention of our engineering personnel from our product development efforts and cause significant customer relationship issues. These issues may also complicate our determination of the timing and amount of revenue recognition and could have a material negative impact on our business.

Disruptions in the supply of certain key components and other goods from our suppliers, including limited or single source suppliers, could have an adverse effect on the results of our business operations, and could damage our relationships with customers.

The production of our products requires a wide variety of raw materials, key components and other goods that are generally available from alternate sources of supply. However, certain critical raw materials, key components and other goods required for the production and sale of some of our principal products are available from limited or single sources of supply. If the receipt of certain limited source or single source materials is delayed, our relationship with customers may be harmed if such delays cause us to miss our scheduled shipment deadlines. Certain of our businesses buy components, including limited or sole source items, from competitors of our other businesses, and certain of our businesses sell products to customers that compete with certain other segments of our business. This dynamic may adversely impact our relationship with these suppliers and customers. For example, these suppliers could increase the price of those components or reduce their supply of those components to us. Similarly, these customers could elect to manufacture products to meet their own requirements rather than purchasing products from us. Our businesses may be adversely affected by our other business relationships with customers and suppliers. Our current or alternative sources may not be able to continue to meet all of our demands on a timely basis. If suppliers or subcontractors experience difficulties or fail to meet any of our manufacturing requirements, our business would be harmed until we are able to secure alternative sources, if any, on commercially reasonable terms. A prolonged inability to obtain certain raw materials, key components or other goods is possible and could have an adverse effect on our business operations, and could damage our relationships with customers.

Production difficulties and product delivery delays or disruptions could have a material adverse effect on our business.

We assemble our products at our facilities in the United States, the United Kingdom and China. Each of our products is typically manufactured in a single manufacturing location. If production activities at any of our manufacturing facilities were interrupted by a natural disaster or otherwise, our operations would be negatively impacted until we could establish alternative production and service operations. Significant production difficulties could be the result of:

· mistakes made while transferring manufacturing processes between locations;

· changing process technologies;

· ramping production;

· installing new equipment at our manufacturing facilities;

· shortage of key components; and

· loss of electricity or employees’ access to the manufacturing facilities due to natural disasters.

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In addition, we may experience product delivery delays in the future. We ship a significant portion of our products to our customers through independent package delivery and import/export companies. We also ship our products through national trucking firms, overnight carrier services and local delivery practices. If one or more of the package delivery or import/export providers experiences a significant disruption in services or institutes a significant price increase, the delivery of our products could be prevented or delayed. Such events could cause us to incur increased shipping costs that could not be passed on to our customers, negatively impacting our profitability and our relationships with certain customers.

We are subject to regulation by various federal, state and foreign agencies that require us to comply with a wide variety of regulations, including those regarding the manufacture of products and the shipping of our products.

Certain medical devices that we manufacture are subject to regulations by the U.S. Food and Drug Administration and similar international agencies. These regulations govern a wide variety of product activities, from design and development to labeling, manufacturing, promotion, sales and distribution. If we fail to comply with such regulations, we may have to recall products and cease their manufacture and distribution, which would increase our costs and reduce our revenues.

In recent years, the medical industry has undergone significant changes in order to reduce healthcare costs. This includes cuts in Medicare, consolidation of healthcare distribution companies and collective purchasing arrangements by office-based healthcare practitioners. Foreign and domestic governments have also undertaken efforts to control healthcare costs through legislation and regulation. In March 2010, President Obama signed into law health care reform legislation in the form of the U.S. Patient Protection and Affordable Care Act (the “PPACA”). One of the components of the PPACA is a 2.3% excise tax on the sales of most medical devices, which started in 2013 and has increased our cost of compliance and negatively affected our profit margin. Many of the impacts of the PPACA will not be known until those regulations are enacted over the next several years. The implementation of health care reform and medical cost containment measures in the U.S. and in foreign countries in which we operate could:

· decrease the price that we might establish for our products, which would result in lower product revenues to us;

· require additional safety monitoring, labeling changes, restrictions on product distribution or use, or other measures after the introduction of our products to market, which could increase our costs of doing business, or otherwise adversely affect the market for our products; and

· create new laws, regulations and judicial decisions affecting pricing or marketing practices.

Changes in governmental regulation of our business or our products could reduce demand for our products or increase our expenses.

We are subject to many governmental regulations, including but not limited to the laser radiation safety regulations of the Radiation Control for Health and Safety Act administered by the National Center for Devices and Radiological Health, a branch of the U.S. Food and Drug Administration, and certain health regulations related to the manufacture of products using beryllium, an element used in some of our products. Among other things, these regulations require us to file annual reports, to maintain quality control and sales records, to perform product testing, to distribute appropriate operating manuals, to conduct safety reviews, to incorporate design and operating features in products sold to end-users and to certify and label our products. Depending on the class of the product, various warning labels must be affixed and certain protective devices must be installed.

We are also subject to regulatory oversight, including comparable enforcement remedies, in the markets we serve. We compete in many markets in which we and our customers must comply with federal, state, local and international regulations, such as environmental, health and safety and food and drug regulations. We develop, configure and market our products to meet customer needs created by those regulations. Any significant change in these regulations could reduce demand for our products or increase our expenses, which in turn could adversely affect our business, financial condition, results of operations and cash flows.

Conflict minerals regulations will cause us to incur additional expenses and could limit the supply and increase the cost of certain metals used in manufacturing our products.

On August 22, 2012, the SEC adopted rules requiring disclosures by public companies concerning tin, tantalum, tungsten and gold, known as Conflict Minerals that are necessary to the functionality or production of products manufactured or contracted to be manufactured. The rules require companies to perform due diligence, disclose and report whether or not such minerals originate from the Democratic Republic of Congo or an adjoining country. There are, and will be, costs associated with complying with the disclosure requirements, such as costs related to determining the source of certain minerals used in our products, as well as costs of possible changes to processes or sources of supply as a consequence of such verification activities. As our supply chain is complex, we may not be able to sufficiently verify the origins of the relevant minerals used in our products through the due diligence procedures that we implement, which may harm our reputation. In addition, we may encounter challenges to satisfy those customers who require that all of the components of our products be certified as conflict-free, which could place us at a competitive disadvantage if we are unable to do so.

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Compliance or the failure to comply with current and future environmental regulations could cause us significant expense.

Our operations are subject to a variety of federal, state, local and international environmental regulations relating to the use, storage, discharge and disposal of hazardous chemicals used during our manufacturing process or requiring design changes or recycling of products we manufacture. We are subject to the federal regulation of the Environmental Protection Agency in the United States and comparable authorities in other countries. If we fail to comply with any present or future regulations, we could be subject to regulatory fines.

Future developments, administrative actions or liabilities relating to environmental matters could have a material adverse effect on our business, results of operations or financial condition. It is difficult to anticipate how such regulations will be implemented and enforced. We continue to evaluate the necessary steps for compliance with regulations as they are enacted. Certain regulations may require us to re-design our products to ensure compliance with the applicable standards. These redesigns may adversely affect the performance of our products, add greater testing lead-times for product introductions and reduce our profitability.

If we fail to implement new information technology systems successfully, our business could be adversely affected.

We rely on various centralized information systems throughout the Company to keep financial records, process orders, manage inventory, process shipments to customers, and operate other critical functions. Some of our existing systems are no longer supported by the software system providers and need to be upgraded or replaced. If we are unable to successfully implement new systems or upgrade the existing systems, particularly those that record, process or manage financial information, we may experience disruption in our operations and may be unable to recognize the expected benefits associated with new systems.

Our results of operations will be adversely affected if we fail to realize the full value of our intangible assets.

As of December 31, 2014, our total assets included $158.0 million of net intangible assets, including goodwill. Net intangible assets consist principally of goodwill, customer relationships, patents, trademarks, core technologies and technology licenses. Goodwill and indefinite-lived intangible assets are tested for impairment at least on an annual basis. All other intangible assets are evaluated for impairment should discrete events occur that call into question the recoverability of the intangible assets.

Adverse changes in our business, adverse changes in the assumptions used to determine the fair value of our reporting units, or the failure to grow our businesses may result in impairment of our intangible assets, which could adversely affect our results of operations. For example, the Company recorded a non-cash impairment charge of $41.4 million in the consolidated financial statements for the year ended December 31, 2014, as a result of lower expectations for sales and operating profit from our NDS business.

Risks Relating to Taxes

Our ability to utilize our net operating loss carryforwards and other tax attributes is dependent on our ability to generate sufficient future taxable income.

As of December 31, 2014, our total net operating loss carryforwards totaled $4.5 million (tax effected). Our ability to use future tax deductions is dependent on our ability to generate sufficient future taxable income in tax jurisdictions in which we operate. The determination of our tax attributes and liabilities and any valuation allowance recorded against our net tax attributes requires significant judgment and complex analysis. We consistently evaluate our tax attributes based on taxes recoverable in the carryback period, existing deferred tax liabilities, tax planning strategies and projected future taxable income. Our ability to recover all of our tax attributes in certain jurisdictions depends upon our ability to continue to generate future profits. If actual results differ from our plans or we do not achieve the desired level of profitability in a given jurisdiction, we may be required to increase or record a valuation allowance on our tax attributes by taking a charge in the statement of operations.

Changes in tax laws could adversely affect future results.

We are subject to regular examination of our income tax returns by the Internal Revenue Service (“IRS”) and other tax authorities. We regularly assess the likelihood of favorable or unfavorable outcomes resulting from these examinations to determine the adequacy of our provision for income taxes. Although we believe our tax estimates are reasonable, there can be no assurance that any final determination will not be materially different than the treatment reflected in our historical income tax provisions and accruals, which could materially and adversely affect our operating results and financial condition. From time to time, the United States, foreign and state governments make substantive changes to tax rules where significant judgment is required to determine the impact of such changes on our provision for income taxes.

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Our effective tax rate is subject to fluctuation, which could impact our financial position.

Our effective tax rate is subject to fluctuation as the effective income tax rate for each year is a function of (a) taxable income levels in numerous tax jurisdictions, (b) our ability to utilize recorded deferred tax assets, (c) taxes, interest, or penalties resulting from tax audits and (d) credits and deductions as a percentage of total taxable income. Further, tax law changes may cause our effective tax rate to fluctuate between periods.

We may be subject to U.S. federal income taxation even though GSIG is a non-U.S. corporation.

GSI Group, Inc. is a holding company organized in Canada and is subject to Canadian tax laws. However, we are subject to U.S. tax rules and file U.S. federal income tax returns for our operations in the United States. In addition, distributions or payments from entities in one jurisdiction to entities in another jurisdiction may be subject to withholding taxes. We do not intend to operate in a manner that will cause GSI Group, Inc. to be treated as engaged in a U.S. trade or business or otherwise be subject to U.S. federal income taxes on its income, but it generally will be subject to U.S. federal withholding tax on certain U.S.-sourced passive income items, such as dividends and certain types of interest.

Risks Relating to Our Common Shares and Our Capital Structure

We may require additional capital to adequately respond to business challenges or opportunities and repay or refinance our existing indebtedness, and this capital may not be available on acceptable terms or at all.

We may require additional capital to adequately respond to future business challenges or opportunities, including, but not limited to, the need to develop new products or enhance our existing products, maintaining or expanding research and development projects, the need to build inventory or to invest other cash to support business growth, and opportunities to acquire complementary businesses and technologies.

As of December 31, 2014, we had outstanding debt of $115.0 million under the amended and restated senior secured credit agreement (the “Amended and Restated Credit Agreement”) and $95.0 million available to be drawn under the revolving credit facility. If we are unable to satisfy the conditions in the Amended and Restated Credit Agreement or our needs exceed the amounts available under the Senior Credit Facilities, we may need to engage in equity or debt financings to obtain additional funds. If we raise additional funds through further issuances of equity or convertible debt securities, our existing shareholders could suffer significant dilution. Any new equity securities we issue could have rights, preferences and privileges superior to those of the holders of our common shares. Further, our Amended and Restated Credit Agreement restricts our ability to obtain additional debt financing from other sources. If we are unable to obtain adequate financing or obtain financing on terms satisfactory to us when we require it, our ability to continue to support our business growth and to respond to business challenges could be significantly limited. In addition, the terms of any additional equity or debt issuances may adversely affect the value and price of our common shares.

Global credit conditions have varied widely over the last several years and could continue to vary significantly in the future. Although these conditions have not affected our current plans, adverse credit conditions in the future could have a negative impact on our ability to execute on future strategic activities.

The market price for our common shares may be volatile.

The market price of our common shares could be subject to wide fluctuations. These fluctuations could be caused by:

· quarterly variations in our results of operations;

· changes in earnings estimates by analysts;

· conditions in the markets we serve; or

· general market or economic conditions.

In addition, in recent years the stock market has experienced extreme price and volume fluctuations. These fluctuations have had a substantial effect on the market prices of many companies, often unrelated to the operating performance of the specific companies. These market fluctuations could adversely affect the price of our common shares.

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We may not have access to the cash flow and other assets of our subsidiaries that may be needed to service our indebtedness and fund our operations.

Although much of our business is conducted through our subsidiaries, none of our subsidiaries are obligated to make funds available to us. Accordingly, our ability to make payments on our indebtedness and fund our operations may be dependent on the earnings and the distribution of funds from our subsidiaries. Local laws and regulations and/or the terms of our indebtedness may restrict certain of our subsidiaries from paying dividends and otherwise transferring assets to us. We cannot assure you that applicable laws and regulations and/or the terms of our indebtedness will permit our subsidiaries to provide us with sufficient dividends, distributions or loans when necessary.

Certain significant shareholders could have substantial influence over our Board of Directors and our outstanding common shares, which could limit our other shareholders’ ability to influence the outcome of key transactions.

Our largest shareholders and their respective affiliates, in the aggregate, beneficially own a substantial amount of our outstanding common shares. As a result, these shareholders may be able to influence matters requiring approval by our shareholders, including the election of directors and the approval of mergers, or other extraordinary transactions. One of these shareholders also serves on our Board of Directors and therefore could have a substantial influence over our Board of Directors. These significant shareholders may have interests that differ from other shareholders and may vote in a way that may be adverse to the interests of other shareholders.

Certain provisions of our articles of incorporation may delay or prevent a change in control of the Company.

Our corporate documents and our existence as a corporation under the laws of New Brunswick subject us to provisions of Canadian law that may enable our Board of Directors to resist a change in control of the Company. These provisions include:

· limitations on persons authorized to call a special meeting of shareholders;

· the ability to issue an unlimited number of common shares; and

· advance notice procedures required for stockholders to nominate candidates for election as directors or to bring matters before an annual meeting of shareholders.

These anti-takeover defenses could discourage, delay or prevent a transaction involving a change in control of the Company. These provisions could also discourage proxy contests and make it more difficult for shareholders to elect directors of their choosing and cause us to take other corporate actions that shareholders desire. In addition, New Brunswick law provides that cumulative voting is mandatory in director elections which can result in stockholders holding less than a majority of shares being able to elect persons to the Board of Directors and prevent a majority stockholder from controlling the election of all of the directors.

Our existing indebtedness could adversely affect our future business, financial condition and results of operations.

As of December 31, 2014, we had $115.0 million of outstanding debt. This level of debt could have significant consequences on our future operations, including:

· reducing the availability of our cash flow to fund working capital, capital expenditures, research and development efforts, acquisitions and other general corporate purposes, and limiting our ability to obtain additional financing for these purposes;

· limiting our flexibility in planning for, or reacting to, and increasing our vulnerability to, changes in our business, market changes in the industries in which we operate and the general economy; and

· placing us at a competitive disadvantage compared to our competitors that have less debt or are less leveraged.

Any of the above-listed factors could have an adverse effect on our business, financial condition and results of operations.

In addition, our Amended and Restated Credit Agreement contains covenants that will limit our ability to engage in activities that may be in our long-term best interests. Our failure to comply with those covenants could result in an event of default which, if not cured or waived, could result in the acceleration of all of our borrowings thereunder.

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Risks Relating to Our Internal Controls

If we fail to maintain appropriate internal controls in the future, we may not be able to report our financial results accurately, which may adversely affect our stock price and our business.

While our management and our independent registered public accounting firm concluded that our internal control over financial reporting was effective as of December 31, 2014, it is possible that material weaknesses may be identified in the future.

If we are unable to maintain effective internal controls, we may not have adequate, accurate or timely financial information, and we may be unable to meet our reporting obligations as a publicly traded company or comply with the requirements of the SEC or the Sarbanes-Oxley Act of 2002. This could result in a restatement of our financial statements, the imposition of sanctions, including the inability of registered broker dealers to make a market in our common shares, or investigation by regulatory authorities. Any such action or other negative results caused by our inability to meet our reporting requirements or comply with legal and regulatory requirements or by disclosure of an accounting, reporting or control issue could adversely affect the trading price of our securities and our business. Material weaknesses in our internal control over financial reporting could also reduce our ability to obtain financing or could increase the cost of any financing we obtain.

As part of our growth strategy, we may make additional acquisitions of privately held businesses. Prior to becoming part of our consolidated company, the acquired business would not be required to implement or maintain the disclosure controls and procedures or internal control over financial reporting that are required of public companies. We are required to integrate the acquired businesses into our consolidated company’s system of disclosure controls and procedures and internal control over financial reporting, but we cannot provide assurance as to how long the integration process may take for our recently acquired business or any business that we may acquire in the future. Additionally, we may need to improve our internal control or those of any business we acquire and may be required to design enhanced processes and controls in order to make such improvements. This could result in significant costs to us and could require us to divert substantial resources, including management time, from other activities.

Item 1B. Unresolved Staff Comments

None.

Item 2. Properties

The principal owned and leased properties of the Company and its subsidiaries related to our continuing operations as of December 31, 2014 are listed in the table below.

Location	Principal Use	Current Segment (a)	Approximate Square Feet	Owned/Leased
Bedford, Massachusetts, USA	Manufacturing, R&D, Marketing, Sales and Administration	1,2,3,4	147,000	Leased; expires in 2019
Rugby, United Kingdom	Manufacturing, R&D, Marketing, Sales and Administration	1	43,000	Leased; expires in 2019
Poole, United Kingdom	Manufacturing, R&D, Marketing, Sales and Administration	3	51,000	Building owned; land leased through 2078
Mukilteo, Washington, USA	Manufacturing, R&D, Marketing, Sales and Administration	1	63,000	Owned
Suzhou, People’s Republic of China	Manufacturing, R&D, Marketing, Sales and Administration	1,2,3	55,000	Leased; expires in 2015
San Jose, California, USA	Manufacturing, R&D, Marketing, Sales and Administration	2	73,000	Leased; expires in 2019
North Syracuse, New York, USA	Manufacturing, R&D, Marketing, Sales and Administration	2	55,000	Leased; expires in 2029
Chatsworth, California, USA	Manufacturing, R&D, Marketing, Sales and Administration	2	22,000	Owned
Taunton, United Kingdom	Manufacturing, R&D, Marketing and Sales	1	19,000	Leased; expires in 2017

a) The facilities house product lines that belong to the following segments:

1 — Laser Products Segment

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2 — Medical Technologies Segment

3 — Precision Motion Segment

4 — Corporate

In connection with our senior credit facility, we entered into open ended deeds of trust for our properties in Orlando, Florida, Chatsworth, California and Mukilteo, Washington.

Additional research and development, sales, service and logistics sites are located in Germany, the Netherlands, Japan, China, Italy and Sri Lanka. These additional offices are leased facilities occupying approximately 43,000 square feet in the aggregate, and are related to our Laser Products, Medical Technologies and Precision Motion segments.

Our owned facility in Orlando, Florida and leased facilities in Lexington, Massachusetts were restructured and are not in use by the Company. These owned and leased facilities constitute approximately 80,000 and 33,000 square feet, respectively. In May 2013, we entered into a sublease agreement for our Lexington facility through December 2016.

In connection with the sale of our Scientific Lasers business, we assigned to the buyer the lease for the facility in San Jose, California, where the Scientific Lasers business operated. The buyer assumed all of our rights and obligations under the original lease, including the duty to pay the rent for the remainder term of the lease. So long as the buyer performs its obligations as the tenant, as required by the Asset and Equity Purchase Agreement for its acquisition of the Scientific Lasers business, the Company has no responsibilities for the lease. If the buyer should cease performance under the lease, however, the landlord could still pursue the Company as the original tenant until February 28, 2019, the end of the lease term. The Company has indemnification rights against the buyer under the Asset and Equity Purchase Agreement.

Item 3. Legal Proceedings

The Company is also subject to various legal proceedings and claims that arise in the ordinary course of business. The Company does not believe that the outcome of these claims will have a material adverse effect upon its financial condition or results of operations but there can be no assurance that any such claims, or any similar claims, would not have a material adverse effect upon its financial condition or results of operations.

Item 4. Mine Safety Disclosures

Not applicable.

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PART II

Item 5. Market for Registrant’s Common Shares, Related Stockholder Matters and Issuer Purchases of Equity Securities

Market Information

From December 29, 2010 to January 27, 2011, the Company’s common shares were quoted on the OTC Markets Group, Inc. under the trading symbol “LASRD.PK”. Between January 28 and February 14, 2011, the Company’s trading symbol was “LASR.PK”. Since February 14, 2011, the Company’s common shares, no par value, have traded on the NASDAQ Global Select Market under the trading symbol “GSIG”.

The following table sets forth the high and low prices of the Company’s common shares during the periods indicated.

	2014				2013
	High		Low		High		Low
First Quarter	$	13.05	$	10.33	$	10.00	$	8.40
Second Quarter	$	13.60	$	11.92	$	8.88	$	7.98
Third Quarter	$	12.97	$	11.29	$	9.64	$	8.18
Fourth Quarter	$	14.87	$	11.15	$	11.24	$	9.47

Holders

As of the close of business on February 20, 2015, there were approximately 38 holders of record of the Company’s common shares. Since many of the common shares are registered in “nominee” or “street” names, the Company believes that the total number of beneficial owners is considerably higher.

Dividend Policy

The Company has never declared or paid cash dividends on its common shares and does not anticipate paying any cash dividends in the foreseeable future.

Purchases of Equity Securities by the Issuer and Affiliated Purchaser

During 2013, the Board of Directors authorized the repurchase of up to $10 million of the Company’s common stock. The share repurchase plan does not obligate the Company to acquire any particular amount of our common stock. No time limit was set for the completion of the share repurchase program, and the program may be suspended or discontinued at any time.

After the adoption of the share repurchase plan, the Company repurchased 50 thousand shares of our common stock for an aggregate purchase price of $0.5 million at an average price of $10.49 per share in December 2013. No repurchases occurred during the twelve months ended December 31, 2014.

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Performance Graph

The following graph compares the cumulative total return to stockholders for the Company’s common shares for the period from December 31, 2009 through December 31, 2014 with the NASDAQ Composite Index, the S&P Technology Index and the Russell 2000 Index. The comparison assumes an investment of $100 is made on December 31, 2009 in the Company’s common shares and in each of the indices and, in the case of the indices, it also assumes reinvestment of all dividends. The performance shown is not necessarily indicative of future performance.

The Company added the Russell 2000 Index (RUT) in 2014 as the Company believes that the Russell 2000 Index (RUT) closely aligns to the long-term strategic focus and growth outlook of the Company.

	December 31, 2009			December 31, 2010	December 31, 2011			December 31, 2012	December 31, 2013		December 31, 2014
GSI Group Inc.	$	100.00	$	405.36	$	391.95	$	331.80	$	430.65	$	563.98
NASDAQ Composite Index	$	100.00	$	116.91	$	114.81	$	133.07	$	184.06	$	208.71
S&P Technology Index(1)	$	100.00	$	109.66	$	104.82	$	120.17	$	148.71	$	169.40
Russell 2000 Index(2)	$	100.00	$	125.31	$	118.47	$	135.81	$	186.07	$	192.63

(1) The S&P 500 Information Technology Index is proprietary to and is calculated, distributed and marketed by S&P Opco, LLC (a subsidiary of S&P Dow Jones Indices LLC), its affiliates and/or its licensors and has been licensed for use.  S&P® and S&P 500®, among other famous marks, are registered trademarks of Standard & Poor’s Financial Services LLC, and Dow Jones® is a registered trademark of Dow Jones Trademark Holdings LLC. © 2013 S&P Dow Jones Indices LLC, its affiliates and/or its licensors. All rights reserved.

(2) Copyright © Russell Investments 2015. All rights reserved.

Item 6. Selected Financial Data

The selected financial data set forth below is not necessarily indicative of results of future operations, and should be read in conjunction with “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Item 7 and the

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consolidated financial statements and related notes thereto in Item 8 of this Annual Report on Form 10-K to fully understand factors that may affect the comparability of the information presented below. The selected consolidated financial data in this section is not intended to replace the consolidated financial statements.

The consolidated statements of operations data for the years ended December 31, 2014, 2013 and 2012 and the consolidated balance sheet data as of December 31, 2014 and 2013 are derived from our audited consolidated financial statements in this Annual Report on Form 10-K. The consolidated statements of operations data for the years ended December 31, 2011 and 2010 and the consolidated balance sheet data as of December 31, 2012, 2011 and 2010 are derived from our audited consolidated financial statements that are not included in this Annual Report on Form 10-K. The prior period information stated herein has been revised to conform to the new presentation as a result of classifying certain of our businesses as discontinued operations.

	Year  Ended December 31,
	2014			2013			2012			2011			2010
	(In thousands, except per share data)
Consolidated Statements of Operations Data:
Sales	$	364,706		$	316,910		$	243,796		$	269,697		$	254,683
Gross profit		150,167			132,227			105,518			119,559			116,749
Operating expenses (1)		166,973			112,781			85,256			81,213			81,245
Operating income (loss) from continuing operations		(16,806	)		19,446			20,262			38,346			35,505
Reorganization items(2)		—			—			—			—			(26,156	)
Income (loss) from continuing operations before income taxes		(17,915	)		16,177			16,702			26,553			(7,999	)
Income tax provision (benefit)(3)		(1,006	)		6,200			(11,595	)		2,136			11,805
Income (loss) from continuing operations		(16,909	)		9,977			28,297			24,417			(19,804	)
Income (loss) from discontinued operations, net of tax		(5,607	)		(2,054	)		(10,974	)		4,584			19,165
Gain (loss) on disposal of discontinued operations, net of tax(4)		(1,726	)		(592	)		2,255			—			—
Consolidated net income (loss)		(24,242	)		7,331			19,578			29,001			(639	)
Less: Net income attributable to noncontrolling interest		(10	)		(22	)		(40	)		(28	)		(48	)
Net income (loss) attributable to GSI Group Inc.	$	(24,252	)	$	7,309		$	19,538		$	28,973		$	(687	)
Earnings (loss) per common share from continuing operations:
Basic	$	(0.49	)	$	0.29		$	0.84		$	0.73		$	(0.84	)
Diluted	$	(0.49	)	$	0.29		$	0.84		$	0.73		$	(0.84	)
Loss per common share from discontinued operations:
Basic	$	(0.21	)	$	(0.08	)	$	(0.26	)	$	0.14		$	0.81
Diluted	$	(0.21	)	$	(0.08	)	$	(0.26	)	$	0.13		$	0.81
Earnings (loss) per common share attributable to GSI Group Inc.:
Basic	$	(0.70	)	$	0.21		$	0.58		$	0.87		$	(0.03	)
Diluted	$	(0.70	)	$	0.21		$	0.58		$	0.86		$	(0.03	)
Weighted average common shares outstanding—basic		34,352			34,073			33,775			33,481			23,703
Weighted average common shares outstanding—diluted		34,352			34,396			33,936			33,589			23,703

(1) The Company recorded an impairment charge of $41.4 million in 2014 related to goodwill ($19.6 million) and intangible assets ($21.8 million) related to our NDS business acquired in January 2013.

(2) The Company recorded $26.2 million in 2010 related to our bankruptcy proceedings. Refer to Note 1 in the accompanying consolidated financial statements.

(3) The Company released $15.3 million of valuation allowance on deferred tax assets in 2012 based on the conclusion that it is more likely than not that its deferred tax assets in the U.S. and U.K. will be realized in the future. In 2010, the Company recorded $9.6 million unfavorable permanent differences in its income tax provisions primarily related to non-deductible bankruptcy costs.

(4) The Company sold its Scientific Lasers business in 2014, Semiconductor Systems business in 2013 and Laser Systems business in 2012 and recorded a (loss) gain on disposal, net of tax, of ($1.7) million, ($0.6) million and $2.3 million, respectively.

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	December 31,
	2014		2013		2012		2011		2010
	(in thousands)
Balance Sheet Data:
Cash, cash equivalents and short-term investments	$	51,146	$	60,980	$	65,788	$	54,835	$	56,781
Total assets		398,919		378,807		337,460		348,503		367,167
Debt, current		7,500		7,500		7,500		10,000		—
Debt, long-term		107,500		64,000		42,500		58,000		107,575
Long-term liabilities, excluding debt		25,951		10,917		11,308		22,440		21,250
Total stockholders’ equity		210,825		241,984		227,809		209,003		178,678

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Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Management’s Discussion and Analysis of Financial Condition and Results of Operations (“MD&A”) should be read in conjunction with the Consolidated Financial Statements and Notes included in Item 8 of this Annual Report on Form 10-K. The MD&A contains certain forward looking statements within the meaning of the United States Private Securities Litigation Reform Act of 1995, Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. In addition to historical financial information, the following discussion and analysis contains forward looking statements that involve risks, uncertainties and assumptions. These forward looking statements include, but are not limited to, anticipated financial performance; expected liquidity and capitalization; drivers of revenue growth; management’s plans and objectives for future operations, expenditures and product development, and investments in research and development; business prospects; potential of future product releases; anticipated sales performance; industry trends; market conditions; changes in accounting principles; changes in actual or assumed tax liabilities; expectations regarding tax exposures; anticipated reinvestment of future earnings; anticipated expenditures in regard to the Company’s benefit plans; future acquisitions and dispositions and anticipated benefits from acquisitions; anticipated impact of the NDS impairment charge; anticipated use of currency hedges; ability to repay our indebtedness; our intentions regarding the use of cash; and other statements that are not historical facts. These forward looking statements are neither promises nor guarantees, but involve risks and uncertainties that may cause actual results to differ materially from those contained in the forward looking statements. Our actual results could differ materially from those anticipated in these forward looking statements as a result of various factors, including those set forth in Item 1A of this Annual Report on Form 10-K under the heading “Risk Factors.” The words “anticipates,” “believes,” “expects,” “intends,” “future,” “could,” “estimates,” “plans,” “would,” “should,” “potential,” “continues,” and similar words or expressions (as well as other words or expressions referencing future events, conditions or circumstances) identify forward looking statements. Readers should not place undue reliance on any such forward looking statements, which speak only as of the date they are made. Management and the Company disclaim any obligation to publicly update or revise any such statement to reflect any change in its expectations or in events, conditions, or circumstances on which any such statements may be based, or that may affect the likelihood that actual results will differ from those contained in the forward looking statements.

Business Overview

GSI Group Inc. and its subsidiaries (collectively referred to as the “Company”, “we”, “us”, “our”) design, develop, manufacture and sell precision photonic and motion control components and subsystems to Original Equipment Manufacturers (OEM’s) in the medical equipment and advanced industrial technology markets. Our highly engineered enabling technologies include laser sources, laser scanning and beam delivery products, optical data collection and machine vision technologies, medical visualization and informatics solutions and precision motion control products. We specialize in collaborating with OEM customers to adapt our component and subsystem technologies to deliver highly differentiated performance in their applications.

Our strategy is to drive sustainable, profitable growth through short-term and long-term initiatives, including:

· improving our business mix to increase medical sales as a percentage of total revenue by:

- introducing new products aimed at attractive medical applications such as minimally invasive and robotic surgery, ophthalmology, patient monitoring, drug delivery, diagnostic testing and life science research;

- cross selling our entire product offering to the leading medical equipment manufacturers and;

- pursuing complementary medical technology acquisitions;

· increasing our penetration of high growth advanced industrial technology applications such as laser materials processing, robotics, automation, metrology, and via hole drilling by working closely with OEM customers to launch application specific products that closely match the requirements of each application;

· broadening our portfolio of precision motion control products and capabilities through increased new product development investment in motion control product lines, expanded sales and marketing to reach target customers and, acquisitions of additional motion control product technologies used by existing customers;

· broadening our product and service offerings through the acquisition of innovative and complementary technologies and solutions in medical and advanced industrial technology applications;

· upgrading our existing operations to expand profit margins and improve customer satisfaction by implementing lean manufacturing principles and strategic sourcing across our major production sites; and

· attracting, retaining, and developing talented and motivated employees.

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Significant Events and Updates

Acquisition of JADAK

On March 14, 2014, we completed the acquisition of JADAK LLC, JADAK Technologies Inc. and Advance Data Capture Corporation (together, “JADAK”), a North Syracuse, New York-based provider of optical data collection and machine vision technologies to OEM medical device manufacturers, for $93.7 million in cash, net of working capital adjustments. The addition of the JADAK technology platforms expands our portfolio of highly-differentiated enabling technologies. JADAK provides data collection and machine vision solutions to its customers, which primarily consist of OEM medical device manufacturers. JADAK’s products are based on technologies that include barcode components and scanners, machine vision cameras, RFID technology, magnetic stripe readers, portable platforms and associated software. JADAK’s products are highly engineered, application-specific components that are developed and manufactured to meet the extremely high performance and quality requirements of major medical OEMs. JADAK’s products are used in medical equipment to increase safety and reduce medical errors by verifying patient identity, validating the specified therapy or function, and enhancing the accuracy of the medical procedure.

Discontinued Operations

On July 15, 2014, we completed the sale of our Scientific Lasers business operating under the Continuum brand name for $6.5 million in cash, net of working capital adjustments, and recognized a $1.7 million loss on sale, net of tax, in the consolidated statement of operations. The loss from discontinued operations of $5.6 million during 2014 includes a $3.0 million fair value write-down of the Scientific Lasers business to its estimated fair value less cost to sell. The Scientific Lasers purchase and sale agreement requires $1.5 million of the sales proceeds to be held in escrow that can be utilized as indemnification for certain representations and warranties claims against the Company until the expiration of the escrow arrangement in January 2016. The Company has recorded the $1.5 million escrow in other long term assets on the consolidated balance sheet.

We began to report the Scientific Lasers business as discontinued operations in the first quarter of 2014. As a result, prior period information related to the business has been reclassified into discontinued operations to conform to current period presentation. See Notes 1 and 4 to our Consolidated Financial Statements for further information.

NDS Escrow Recovery

On January 15, 2013, we completed the acquisition of NDS Surgical Imaging LLC (“NDS”), a San Jose, California-based company that designs, manufactures, and markets high definition visualization solutions and imaging informatics products for the surgical, patient monitoring and radiology end-markets, for $80.8 million in cash, net of working capital adjustments. On September 24, 2014, we received a payment of $5.4 million, the full remaining amount held in the escrow account established upon the closing of the acquisition. The escrow recovery resulted from the Company’s claims for a breach of certain terms of the January 15, 2013 Securities Purchase Agreement for the acquisition of NDS. The escrow recovery was accounted for as a reduction to goodwill as the $5.4 million payment was clearly and directly related to the acquisition price. The escrow recovery resulted in a final adjusted purchase price of $75.4 million.

NDS Impairment Charge

During the fourth quarter of 2014, the Company recorded a non-cash impairment charge of $41.4 million related to our NDS business in the consolidated financial statements for the year ended December 31, 2014. The impairment charge will not result in future cash expenditures, or otherwise impact the Company’s liquidity, cash flows, or compliance with its debt covenants.

Overview of Financial Results

Total sales for 2014 were $364.7 million, an increase of $47.8 million, or 15.1%, versus the prior year primarily as a result of the JADAK acquisition which accounted for $45.4 million or 14.3% of the increase in total sales. In addition, foreign exchange rates favorably impacted our sales by 0.1% during the year ended December 31, 2014. Excluding the impact of the JADAK acquisition and changes in foreign exchange rates, total sales for 2014 increased 0.7% versus the prior year. Our organic sales growth is summarized as follows:

	% Change 2014 vs. 2013
Reported growth		15.1	%
Less: Change attributable to JADAK acquisition		14.3	%
Less: Change due to foreign currency		0.1	%
Organic growth		0.7	%

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The organic growth in our sales for the year ended December 31, 2014 compared to the prior year was primarily attributable to growth in our Laser Products and Precision Motion segments offset by a decline in sales in our Medical Technologies segment. The increase in sales in our Laser Products segment was attributable to an increase in sales volume across our product portfolio. The growth in our Precision Motion segment was driven by increases in sales volume of optical encoders products. These increases were partially offset by a decline in sales in our Medical Technologies segment related to our visualization solutions product line.

Operating income from continuing operations for 2014 decreased $36.2 million, or 186.4%, from an operating income of $19.4 million in 2013 to an operating loss of $16.8 million. This decrease was primarily attributable to an impairment charge related to the NDS business of $41.4 million.

Diluted earnings per share (“EPS”) from continuing operations decreased $0.78 from an earnings per share of $0.29 in 2013 to a loss per share of ($0.49) in 2014. The decrease was primarily attributable to operating loss from continuing operations in the current year versus operating income from continuing operations in the prior year and an increase in interest expense as a result of higher average debt levels during 2014, offset by foreign currency gains in the current year versus foreign currency losses in the prior year, an increase in earnings from our equity-method investment in Laser Quantum and lower effective tax rate in the current year versus the prior year.

The specific components of our operating results for 2014, 2013 and 2012 are further discussed below.

Results of Operations

The following table sets forth our results of operations as a percentage of sales for the years indicated:

	2014			2013			2012
Sales		100.0	%		100.0	%		100.0	%
Cost of sales		58.8			58.3			56.7
Gross profit		41.2			41.7			43.3
Operating expenses:
Research and development and engineering		7.9			7.5			7.6
Selling, general and administrative		23.1			24.1			24.5
Amortization of purchased intangible assets		2.8			2.3			1.1
Restructuring and acquisition related costs		0.6			1.7			1.8
Impairment of goodwill and intangible assets		11.4			—			—
Total operating expenses		45.8			35.6			35.0
Operating income (loss) from continuing operations		(4.6	)		6.1			8.3
Interest income (expense), net		(1.4	)		(1.1	)		(1.1	)
Foreign exchange transaction gains (losses), net		0.4			(0.4	)		(0.6	)
Other income (expense), net		0.7			0.5			0.2
Income (loss) from continuing operations before income taxes		(4.9	)		5.1			6.8
Income tax provision (benefit)		(0.3	)		2.0			(4.8	)
Income (loss) from continuing operations		(4.6	)		3.1			11.6
Loss from discontinued operations, net of tax		(1.6	)		(0.6	)		(4.5	)
Gain (loss) on disposal of discontinued operations, net of tax		(0.4	)		(0.2	)		0.9
Consolidated net income (loss)		(6.6	)		2.3			8.0
Less: Net income attributable to noncontrolling interest		—			—			—
Net income (loss) attributable to GSI Group Inc.		(6.6	)%		2.3	%		8.0	%

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Sales

The following table sets forth external sales by reportable segment for 2014, 2013 and 2012 (dollars in thousands):

							% Change
	2014		2013		2012		2014 vs. 2013			2013 vs. 2012
Laser Products	$	177,726	$	166,598	$	158,639		6.7	%		5.0	%
Medical Technologies		122,187		90,276		25,915		35.3	%		248.4	%
Precision Motion		64,793		60,036		59,242		7.9	%		1.3	%
Total	$	364,706	$	316,910	$	243,796		15.1	%		30.0	%

Laser Products

2014 Compared with 2013

Laser Products segment sales in 2014 increased by $11.1 million, or 6.7%, versus the prior year, due to growth across all product lines.  The sales growth was primarily due to an increase in sales of our CO₂ lasers and fiber lasers products, driven by new product launches, new customer wins, and market growth. In addition, sales of our beam delivery products grew due to increased demand in material processing in advanced industrial markets.

2013 Compared with 2012

Laser Products segment sales in 2013 increased by $8.0 million, or 5.0%, versus the prior year. Sales growth was primarily attributable to growth in sales of our beam delivery products, driven by strong demand and greater market penetration of our laser scanning solutions products. In addition, CO₂ lasers products experienced an increase in demand from customers in both marking and coding applications for the food, beverage and pharmaceutical industries.

Medical Technologies

2014 Compared with 2013

Medical Technologies segment sales in 2014 increased by $31.9 million, or 35.3%, versus the prior year. A $45.4 million increase in sales attributable to the JADAK acquisition was partially offset by a decline in sales in our visualization solutions products as a result of dual sourcing at an OEM customer that began in 2013, softness in medical equipment spending impacting our customer’s demand for our products, and delays in new product introductions.

2013 Compared with 2012

Medical Technologies segment sales in 2013 increased by $64.4 million, or 248.4%, versus the prior year. A $68.4 million increase in sales attributable to the NDS acquisition was partially offset by a decline in volume in our medical grade thermal printer products, which was largely driven by end of life programs with certain customer product platforms and, to a lesser extent, lower hospital capital spending.

Precision Motion

2014 Compared with 2013

Precision Motion segment sales in 2014 increased by $4.8 million, or 7.9%, versus the prior year. This increase was principally driven by increased sales of our optical encoders products as a result of a market share gain with a major OEM customer and new customer wins.

2013 Compared with 2012

Precision Motion segment sales in 2013 increased by $0.8 million, or 1.3%, versus the prior year. This increase was primarily due to an increase in sales of our air bearing spindles products, which experienced a short-term rebound in demand from the printed circuit board industry. This increase was offset by a decline in sales volume of our optical encoders products, which was driven by sales to a customer in the data storage market in 2012 that did not repeat in 2013.

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Gross Profit

The following table sets forth the gross profit and gross profit margin for each of our reportable segments for 2014, 2013 and 2012 (dollars in thousands):

	2014			2013			2012
Gross profit:
Laser Products	$	74,224		$	68,819		$	66,498
Medical Technologies		48,678			35,824			13,149
Precision Motion		28,333			27,778			26,796
Corporate		(1,068	)		(194	)		(925	)
Total	$	150,167		$	132,227		$	105,518
Gross profit margin:
Laser Products		41.8	%		41.3	%		41.9	%
Medical Technologies		39.8	%		39.7	%		50.7	%
Precision Motion		43.7	%		46.3	%		45.2	%
Total		41.2	%		41.7	%		43.3	%

Gross profit and gross profit margin can be influenced by a number of factors, including product mix, pricing, volume, manufacturing efficiencies and utilization, costs for raw materials and outsourced manufacturing, headcount, inventory obsolescence and warranty expenses.

Laser Products

2014 Compared with 2013

Laser Products segment gross profit in 2014 increased $5.4 million, or 7.9%, versus the prior year primarily due to an increase in sales and an increase in gross profit margin. Laser Products segment gross profit margin was 41.8% for 2014, compared with a gross profit margin of 41.3% for the prior year. The 0.5 percentage point increase in gross profit margin was primarily attributable to productivity improvements as a result of our manufacturing process improvement initiatives and margin improvements in our fiber lasers products.

2013 Compared with 2012

Laser Products segment gross profit for 2013 increased $2.3 million, or 3.5%, versus the prior year primarily due to an increase in sales. Laser Products segment gross profit margin was 41.3% for 2013, compared with a gross profit margin of 41.9% for the prior year. The 0.6 percentage point decrease in gross profit margin was primarily attributable to unfavorable impact of higher sales of our fiber lasers which had a negative impact on our gross profit margin and new product launches in our CO₂ lasers products, which temporarily increased our production costs.

Medical Technologies

2014 Compared with 2013

Medical Technologies segment gross profit for 2014 increased $12.9 million, or 35.9%, versus the prior year. The increase was primarily attributable to the JADAK acquisition in March 2014, which accounted for an $18.9 million increase in gross profit year over year, partially offset by a decline in gross profit for our visualization solutions products due to lower sales. Medical Technologies segment gross profit margin remained relatively flat year over year. Included in gross profit was amortization of developed technologies and amortization of inventory fair value step-ups of $3.7 million and $3.1 million for the years ended December 31, 2014 and December 31, 2013, respectively.

2013 Compared with 2012

Medical Technologies segment gross profit for 2013 increased $22.7 million, or 172.4%, versus the prior year primarily due to the acquisition of NDS in January 2013. Excluding the impact of NDS, gross profit decreased by $2.6 million, or 19.5%, primarily attributable to lower sales of our medical grade thermal printers products. Medical Technologies segment gross profit margin was 39.7% for 2013, compared with a gross profit margin of 50.7% for the prior year. The 11.0 percentage point decrease in gross profit margin percentage was primarily driven by the acquisition of NDS, which included $3.1 million in intangibles amortization and acquisition fair value adjustments.

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Precision Motion

2014 Compared with 2013

Precision Motion segment gross profit for 2014 increased $0.6 million, or 2.0%, versus the prior year primarily due to an increase in sales volume of our optical encoders products. Precision Motion segment gross profit margin was 43.7% for 2014, versus a gross profit margin of 46.3% for the prior year. The 2.6 percentage point decrease in gross profit margin was a consequence of manufacturing ramp-up costs.

2013 Compared with 2012

Precision Motion segment gross profit for 2013 increased $1.0 million, or 3.7%, versus the prior year primarily due to an increase in both sales and gross profit margin. Precision Motion segment gross profit margin was 46.3% for 2013, compared with a gross profit margin of 45.2% for the prior year. The 1.1 percentage point increase in gross profit margin was driven by product mix and cost savings from our 2012 restructuring program.

Operating Expenses

The following table sets forth operating expenses for 2014, 2013 and 2012 (dollars in thousands):

							% Change
	2014		2013		2012		2014 vs. 2013			2013 vs. 2012
Research and development and engineering	$	28,954	$	23,787	$	18,530		21.7	%		28.4	%
Selling, general and administrative		84,380		76,337		59,707		10.5	%		27.9	%
Amortization of purchased intangible assets		10,262		7,270		2,650		41.2	%		174.3	%
Restructuring and acquisition related costs		1,935		5,387		4,369		(64.1	)%		23.3	%
Impairment of goodwill and intangible assets		41,442		—		—	N/A			N/A
Total	$	166,973	$	112,781	$	85,256		48.1	%		32.3	%

Research and Development and Engineering Expenses

Research and development and engineering (“R&D”) expenses are primarily comprised of employee compensation and related expenses and cost of materials for R&D projects.

2014 Compared with 2013

R&D expenses were $29.0 million, or 7.9% of sales, in 2014, versus $23.8 million, or 7.5% of sales, in 2013. R&D expenses increased in terms of total dollars primarily due to the acquisition of JADAK.

2013 Compared with 2012

R&D expenses were $23.8 million, or 7.5% of sales, in 2013, versus $18.5 million, or 7.6% of sales, in 2012. R&D expenses, in terms of total dollars, increased primarily due to the acquisition of NDS. The increase was partially offset by lower employee compensation as a result of our restructuring plans and lower project costs in 2013.

Selling, General and Administrative Expenses

Selling, general and administrative (“SG&A”) expenses include costs for sales and marketing, sales administration, finance, human resources, legal, information systems and executive management.

2014 Compared with 2013

SG&A expenses were $84.4 million, or 23.1% of sales, in 2014, versus $76.3 million, or 24.1% of sales, in 2013. SG&A expenses increased in terms of total dollars primarily due to the acquisition of JADAK.

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2013 Compared with 2012

SG&A expenses were $76.3 million, or 24.1% of sales, in 2013, versus $59.7 million, or 24.5% of sales, in 2012. SG&A expenses increased in terms of total dollars due to the acquisition of NDS and, to a lesser extent, from the increase in employee compensation versus the prior year.

Amortization of Purchased Intangible Assets

Amortization of purchased intangible assets is charged to our Laser Products, Medical Technologies and Precision Motion segments. Amortization of core technologies is included in cost of goods sold in the consolidated statement of operations. Amortization of customer relationships, trademarks, backlog and other intangibles are included in operating expenses in the consolidated statement of operations.

2014 Compared with 2013

Amortization of purchased intangible assets, excluding the amortization for developed technologies that is included in cost of sales, was $10.3 million, or 2.8% of sales, in 2014, versus $7.3 million, or 2.3% of sales,in 2013. The increase, in terms of total dollars and as a percentage of sales, was related to the amortization of acquired intangible assets from the JADAK acquisition.

2013 Compared with 2012

Amortization of purchased intangible assets, excluding the amortization of core technologies, was $7.3 million, or 2.3% of sales, in 2013, versus $2.7 million, or 1.1% of sales, in 2012. The increase, in terms of total dollars and as a percentage of sales, was related to the amortization of acquired intangible assets as part of the NDS acquisition.

Restructuring and Acquisition Related Costs

Restructuring and acquisition related charges primarily relate to our prior year restructuring programs as well as the acquisition related costs incurred for the acquisition of JADAK in March 2014 and NDS in January 2013.

2014 Compared with 2013

The Company recorded restructuring and acquisition related costs of $1.9 million in 2014, versus $5.4 million in 2013. We recognized acquisition related costs of $1.5 million in 2014, which included expenses of $0.6 million recognized under earn-out agreements in connection with the JADAK acquisition. We recorded restructuring costs of $0.4 million primarily related to depreciation on our Orlando, Florida facility. The decrease in restructuring and acquisition related costs is primarily due to the decrease in costs related to prior year restructuring programs. Acquisition related costs were $1.6 million during 2013.

2013 Compared with 2012

The Company recorded restructuring and acquisition related costs of $5.4 million in 2013, versus $4.4 million in 2012. The increase in restructuring and acquisition related costs primarily related to higher acquisition related charges, which related to the acquisition of NDS in January 2013 and JADAK in March 2014. Acquisition related charges totaled $1.6 million and $0.8 million during 2013 and 2012, respectively.

In January 2013, the Company consolidated our laser scanners business into our Bedford, Massachusetts production facility. In addition, the Company also recorded severance charges associated with our 2011 and 2013 restructuring plans.

Impairment of Goodwill and Intangible Assets

The Company recorded a non-cash impairment charge of $41.4 million in the consolidated financial statements for the year ended December 31, 2014 as a result of lower expectations for sales and operating profit from our NDS business.

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Operating Income (Loss) by Segment

The following table sets forth operating income by segment for 2014, 2013 and 2012 (in thousands):

	2014			2013			2012
Operating Income (Loss) from Continuing Operations
Laser Products	$	33,053		$	25,143		$	24,480
Medical Technologies		(43,079	)		3,566			8,285
Precision Motion		13,023			12,062			9,482
Corporate, shared services and unallocated		(19,803	)		(21,325	)		(21,985	)
Total	$	(16,806	)	$	19,446		$	20,262

Laser Products

2014 Compared with 2013

Laser Products operating income from continuing operations for 2014 increased by $7.9 million, or 31.5%, from 2013 primarily due to an increase in gross profit of $5.4 million and a $2.0 million decrease in restructuring and acquisition related costs compared to the prior year. Amortization of intangible assets for the laser products segment was $4.1 million in both 2014 and 2013.

2013 Compared with 2012

Laser Products operating income for 2013 increased by $0.7 million, or 2.7%, from 2012 primarily due to higher profitability from our laser scanners products, offset by a decrease in operating income from our CO₂ lasers products. Restructuring charges were $1.9 million in 2013, compared to $0.9 million in 2012. The increase in restructuring costs primarily relates to the relocation of the laser scanners product line in 2013. Amortization of intangible assets for the Laser Products segment was $4.1 million in both 2013 and 2012.

Medical Technologies

2014 Compared with 2013

Medical Technologies operating income from continuing operations decreased by $46.6 million from 2013 to an operating loss of $43.1 million in 2014 primarily due to the NDS goodwill and intangible assets impairment charge of $41.4 million, an increase in amortization of intangibles and amortization of our inventory fair value step-ups of $3.7 million and a decline in visualization solutions revenue, partially offset by an increase in operating income from continuing operations as a result of the JADAK acquisition.

2013 Compared with 2012

Medical Technologies operating income for 2013 decreased by $4.7 million, or 57.0%, from 2012 primarily due to an increase in amortization of intangibles and inventory fair value step-ups related to the acquisition of NDS totaling $7.4 million and an increase in restructuring costs of $0.9 million compared to zero in the prior year.

Precision Motion

2014 Compared with 2013

Precision Motion operating income from continuing operations for 2014 increased by $1.0 million, or 8.0%, from 2013 primarily due to an increase in gross profit of $0.6 million and a $0.4 million decrease in restructuring costs.

2013 Compared with 2012

Precision Motion operating income for 2013 increased by $2.6 million, or 27.2%, from 2012. The increase in operating income was primarily due to an increase in gross margin and lower operating costs as a result of our restructuring plans related to our air bearing spindles product line. Restructuring charges were $0.4 million in 2013 compared to $1.0 million in 2012.

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Corporate, Shared Services and Unallocated

Corporate, shared services and unallocated costs primarily represent costs of corporate and shared service functions, management incentive compensation, stock-based compensation, and other public company costs that are not allocated to the operating segments, including certain restructuring and all acquisition related costs.

2014 Compared with 2013

Loss from corporate, shared services and unallocated costs for 2014 decreased by $1.5 million, or 7.1%, from 2013, primarily due to lower restructuring and acquisition costs. Restructuring and acquisition related costs were $1.5 million in 2014, compared to $2.2 million in 2013.

2013 Compared with 2012

Corporate, shared services and unallocated costs for 2013 were consistent with 2012.

Interest Income (Expense), Foreign Exchange Transaction Gains (Losses), and Other Income (Expense), Net

The following table sets forth interest income (expense), net, foreign exchange transaction gains (losses), net and other income (expense), net for 2014, 2013 and 2012 (in thousands):

	2014			2013			2012
Interest income (expense), net	$	(5,096	)	$	(3,468	)	$	(2,792	)
Foreign exchange transaction gains (losses), net		1,281			(1,301	)		(1,347	)
Other income (expense), net		2,706			1,500			579
Total	$	(1,109	)	$	(3,269	)	$	(3,560	)

Interest Income (Expense), Net

2014 Compared with 2013

The increase in net interest expense in 2014 versus the prior year was the result of higher average debt levels and higher average interest rates during 2014. The higher debt levels in 2014 were the result of borrowings to fund the JADAK acquisition in March 2014. The weighted average interest rate on our Senior Credit Facilities was 3.25% and 2.83% during 2014 and 2013, respectively. Included in net interest expense was non-cash interest expense of approximately $1.0 million and $0.9 million in 2014 and 2013, respectively, related to amortization of deferred financing costs on our debt.

2013 Compared with 2012

The increase in net interest expense from 2012 to 2013 was the result of higher average debt outstanding during 2013, which was partially offset by lower average interest rates. The higher debt levels in 2013 were the result of borrowings to fund the NDS acquisition in January 2013. The weighted average interest rate on the Senior Credit Facilities was 2.83% and 3.35% during 2013 and 2012, respectively. Included in net interest expense was non-cash interest expense of $0.9 million and $1.0 million in 2013 and 2012, respectively, related to amortization of deferred financing costs on our debt.

Foreign Exchange Transaction Gains (Losses), Net

Foreign exchange transaction gains (losses), net, were $1.3 million, ($1.3) million and ($1.3) million during 2014, 2013 and 2012, respectively, due to the performance of the U.S. Dollar against the Euro, British Pound and Japanese Yen.

Other Income (Expense), Net

Other income (expense), net, was $2.7 million, $1.5 million and $0.6 million in 2014, 2013 and 2012, respectively. Other income (expense), net, increased as a result of higher earnings from our equity-method investment in Laser Quantum and an increase in ownership. As a result of a share buy-back program by Laser Quantum, our equity ownership percentage increased from 25.1% to 41.2% during the second quarter of 2013.

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The summarized financial information for Laser Quantum is as follows (in thousands):

	Year Ended December 31,
	2014		2013		2012
Sales	$	23,013	$	16,269	$	13,039
Income from operations	$	7,434	$	4,720	$	3,592
Net income	$	6,627	$	3,745	$	2,215

Income Taxes

2014 Compared with 2013

We recorded a tax benefit of $1.0 million in 2014, as compared to a tax expense of $6.2 million in 2013. The effective tax rate for 2014 was 5.6% of loss before taxes, compared to an effective tax rate of 38.3% of income before taxes for 2013. Our effective tax rate in 2014 differs from the Canadian statutory rate of 27.0% primarily due to $4.6 million additional valuation allowance on net operating losses in Canada and certain other jurisdictions, which was partially offset by $1.1 million of international tax rate differences and a $1.7 million benefit associated with R&D tax credits generated during the year.

As a significant portion of the NDS goodwill and intangible assets impairment charge was recognized in Canada, we had a $20.2 million loss before taxes in Canada in 2014 where we do not recognize any tax benefit as a result of the full valuation allowance on deferred tax assets. This significantly reduced the income tax benefit as a percentage of the loss before taxes as reported in the consolidated statement of operations for 2014.

2013 Compared with 2012

We recorded a tax expense of $6.2 million in 2013, as compared to a tax benefit of $11.6 million in 2012. The effective tax rate for 2013 was 38.3% of income before taxes, compared to an effective tax rate of (69.4%) of income before taxes for 2012. Our tax rate in 2013 differs from the Canadian statutory rate of 26.0% primarily due to additional valuation allowance on net operating losses in certain jurisdictions offset by a tax benefit for tax credits generated during the year.

Discontinued Operations

2014 Compared with 2013

Loss from discontinued operations, net of tax, was $7.3 million and $2.7 million during 2014 and 2013, respectively. The increase in the loss from discontinued operations was primarily due to the sale of the Scientific Lasers business, which resulted in a $3.0 million fair value write-down of the Scientific Lasers business and an impairment charge of $0.5 million in connection with our joint venture investment in Excel Laser Technology Private Limited, which is part of our Scientific Lasers business.

In July 2014, we completed the sale of the Scientific Lasers business for $6.5 million in cash, net of working capital adjustments. We recorded a $1.7 million loss on the sale, net of tax, in the consolidated statement of operations.

2013 Compared with 2012

Loss from discontinued operations, net of tax, was $2.7 million and $8.7 million during 2013 and 2012, respectively. The decrease in the loss was primarily due to the sale of the Semiconductor Systems and Laser Systems businesses in May 2013 and October 2012, respectively, offset by severance paid to Semiconductor Systems employees during 2013 as a result of the sale.

In May 2013, we consummated the sale of the Semiconductor Systems business for $9.7 million in cash, including working capital adjustments of $1.7 million received in September 2013. We recognized a $0.4 million loss on the sale, net of tax, in the consolidated statements of operations during 2013.

Liquidity and Capital Resources

We assess our liquidity in terms of our ability to generate cash to fund our operating, investing, and financing activities. Our primary ongoing cash requirements are funding operations, capital expenditures, investments in businesses, and repayment of our debt and related interest expense. Our primary sources of liquidity are cash flows from operations and borrowings under our revolving credit facility. We believe our future operating cash flows will be sufficient to meet our future operating and capital expenditure cash needs for the foreseeable future, including at least the next 12 months. The availability of borrowings under our revolving credit facility provides an additional potential source of liquidity should it be required for business acquisitions. In addition, we may seek to

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raise additional capital, which could be in the form of bonds, convertible debt or equity, to fund business development activities or other future investing cash requirements, subject to approval by the lenders in the Amended and Restated Credit Agreement.

Significant factors affecting the management of our ongoing cash requirements are the adequacy of available bank lines of credit and our ability to attract long-term capital with satisfactory terms. The sources of our liquidity are subject to all of the risks of our business and could be adversely affected by, among other factors, a decrease in demand for our products, our ability to integrate current and future acquisitions, deterioration in certain financial ratios, and market changes in general. See “Risks Relating to Our Common Shares and Our Capital Structure” included in Item 1A of this Annual Report on Form 10-K.

Our ability to make payments on our indebtedness and to fund our operations may be dependent upon the earnings and the distribution of funds from our subsidiaries. Local laws and regulations and/or the terms of our indebtedness restrict certain of our subsidiaries from paying dividends and transferring assets to us. We cannot assure you that applicable laws and regulations and/or the terms of our indebtedness will permit our subsidiaries to provide us with sufficient dividends, distributions or loans when necessary.

In October 2013, the Company’s Board of Directors authorized a share repurchase plan under which the Company may repurchase outstanding shares of the Company’s common stock up to an aggregate amount of $10.0 million. The shares may be repurchased from time to time, at the Company’s discretion, based on ongoing assessment of the capital needs of the business, the market price of the Company’s common stock, and general market conditions. Shares may also be repurchased through an accelerated stock purchase agreement, on the open market or in privately negotiated transactions in accordance with applicable federal securities laws. Repurchases may be made under certain SEC regulations, which would permit common stock to be purchased when the Company would otherwise be prohibited from doing so under insider trading laws. The share repurchase plan does not obligate the Company to acquire any particular amount of common stock. No time limit was set for the completion of the share repurchase program, and the program may be suspended or discontinued at any time. The Company expects to fund the share repurchase through cash on hand and future cash flow from operations. There were no share repurchases in 2014. As of December 31, 2014, the Company has cumulatively repurchased 50 thousand shares of its common stock for an aggregate amount of $0.5 million.

As of December 31, 2014, $22.4 million of our $51.1 million cash and cash equivalents was held by our subsidiaries outside of the United States and Canada. Generally, our intent is to use cash held in these foreign subsidiaries to fund our local operations or acquisitions by those local subsidiaries. However, in certain instances, we have identified excess cash for which we may repatriate and have established liabilities for the expected tax cost. Additionally, we may use intercompany loans to address short-term cash flow needs for various subsidiaries.

Amended and Restated Credit Agreement

In December 2012, we entered into an amended and restated senior secured credit agreement (the “Amended and Restated Credit Agreement”), consisting of a $50.0 million, 5-year term loan facility and a $75.0 million, 5-year revolving credit facility (collectively, the “Senior Credit Facilities”). The Senior Credit Facilities mature in December 2017. On February 10, 2014, we entered into a fourth amendment to the Amended and Restated Credit Agreement (the “Fourth Amendment”). The Fourth Amendment increased the revolving credit facility commitment under the Amended and Restated Credit Agreement by $100 million from $75 million to $175 million and resets the accordion feature to $100 million for future expansion. Additionally, the Fourth Amendment increased the maximum permitted consolidated leverage ratio financial covenant from 2.75 to 3.00.

As of December 31, 2014, we had term loans of $35.0 million and revolving loans of $80.0 million outstanding under the Amended and Restated Credit Agreement.

The Amended and Restated Credit Agreement contains various covenants that we believe are usual and customary for this type of agreement, including a maximum allowed leverage ratio, and a minimum required fixed charge coverage ratio (as defined in the Amended and Restated Credit Agreement). The following table summarizes these financial covenant requirements as stated in the Fourth Amendment and our compliance there with as of December 31, 2014.

	Requirement		Actual December 31, 2014
Maximum consolidated leverage ratio		3.00		2.07
Minimum consolidated fixed charge coverage ratio		1.50		3.59

In addition, the Amended and Restated Credit Agreement contains various other customary representations, warranties and covenants applicable to the Company and its subsidiaries, including: (i) limitations on certain payments; (ii) limitations on fundamental changes involving the Company; (iii) limitations on the disposition of assets; and (iv) limitations on indebtedness, investments, and liens.

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Cash Flows

Cash and cash equivalents totaled $51.1 million at December 31, 2014, versus $61.0 million at December 31, 2013. The net decrease in cash and cash equivalents is primarily related to cash outflows for the acquisition of JADAK of $93.7 million, repayments of our debt of $33.5 million, and capital expenditures of $6.3 million. These outflows were offset by net cash inflows from operating activities of $42.3 million, borrowings of $77.0 million under our Senior Credit Facilities, proceeds of $5.4 million related to the recovery of an escrow claim for the acquisition of NDS and net cash proceeds from the sale of our Scientific Lasers business totaling $4.7 million.

The following table summarizes our cash and cash equivalent balances, cash flows and unused and available funds on our revolving credit facility for the years indicated (in thousands):

	2014			2013			2012
Cash and cash equivalents	$	51,146		$	60,980		$	65,788
Net cash provided by operating activities of continuing operations	$	43,990		$	56,178		$	33,088
Net cash used in investing activities of continuing operations	$	(93,541	)	$	(85,297	)	$	(3,353	)
Net cash provided by (used in) financing activities of continuing operations	$	40,281		$	18,574		$	(21,112	)
Unused and available funds under revolving credit facility	$	95,000		$	46,000		$	75,000

Operating Cash Flows

Cash provided by operating activities of continuing operations was $44.0 million in 2014 versus $56.2 million and $33.1 million in 2013 and 2012, respectively. Cash provided by operating activities of continuing operations decreased in 2014 by $12.2 million primarily due to net tax refunds of $11.8 million received in 2013 as a result of the settlement with the IRS. Cash provided by operating activities of continuing operations was positively impacted by a decrease in our days sales outstanding from 56 days at December 31, 2013 to 53 days at December 31, 2014 and a decrease in inventory as our inventory turnover ratio increased from 3.2 at December 31, 2013 to 3.3 at December 31, 2014. Cash provided by operating activities of continuing operations was negatively impacted by a decrease in our days payables outstanding from 48 days at December 31, 2013 to 45 days at December 31, 2014.

Cash provided by operating activities of continuing operations in 2013 was primarily related to higher profit after adding back to net income non-cash adjustments for depreciation and amortization, share-based compensation and deferred income taxes of $28.9 million and the net tax refund of $11.8 million received as a result of the settlement with IRS. The $33.1 million of cash provided by operating activities of continuing operations in 2012 was primarily related to our income from continuing operations of $28.3 million.

Cash used in operating activities of discontinued operations was $1.7 million in 2014, versus $7.0 million and $4.7 million in 2013 and 2012, respectively. The $5.3 million decrease in cash used in operating activities of discontinued operations in 2014 from the prior year, was primarily related to the divestiture of the Scientific Lasers business in 2014 and divestiture of the Semiconductor Systems business in 2013. The $2.3 million increase in cash used in operating activities of discontinued operations in 2013 from 2012 was primarily related to lower cash flows from accounts receivable from discontinued operations in 2013 versus 2012.

Investing Cash Flows

Cash used in investing activities of continuing operations was $93.5 million during 2014 primarily due to cash consideration of $93.7 million paid for the JADAK acquisition in March 2014 and $5.4 million in capital expenditures, partially offset by proceeds of $5.4 million from an escrow claim related to the NDS acquisition.

Cash used in investing activities of continuing operations of $85.3 million in 2013 was primarily due to cash consideration of $80.8 million paid for the NDS acquisition and $4.8 million in capital expenditures. This compares to cash used in investing activities of continuing operations of $3.4 million in 2012 primarily related to capital expenditures.

Cash provided by investing activities of discontinued operations was $3.8 million during 2014, primarily related to $4.7 million of net proceeds from the sale of the Scientific Lasers business, offset by capital expenditures of $0.9 million. This compares to cash provided by investing activities of discontinued operations in 2013 of $12.3 million, primarily related to $8.2 million in net proceeds from the sale of the Semiconductor Systems business and $4.6 million in net proceeds from the sale of our East Setauket, New York facility which was part of our Scientific Lasers business. Cash provided by investing activities of discontinued operations in 2012 was driven by the sale of our Laser Systems business of $7.0 million, partially offset by $0.8 million in capital expenditures.

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On February 19, 2015, the Company paid $13.9 million in cash for the acquisition of Applimotion Inc. utilizing cash on hand as well as borrowing under our revolving credit facility. We have no material commitments to purchase plant property and equipment and expect such expenditures to be approximately $6 million to $7 million in 2015.

Financing Cash Flows

Cash provided by financing activities of continuing operations was $40.3 million during 2014, primarily due to $77.0 million of borrowings under our revolving credit facility used to pay a portion of the cash consideration paid for the JADAK acquisition, partially offset by $7.5 million for our contractual term loan payments and $26.0 million of optional repayments of borrowings under our revolving credit facility. Cash provided by financing activities of continuing operations was $18.6 million during 2013, primarily due to $60.0 million of borrowings under our revolving credit facility used to pay for a portion of the cash consideration paid for the NDS acquisition, partially offset by $7.5 million for our contractual term loan payments and $31.0 million of optional repayments of borrowings under our revolving credit facility. Cash used in financing activities of continuing operations was $21.1 million during 2012, primarily due to $23.0 million in debt repayments, offset by the $5.0 million of borrowings under our revolving credit facility related to the Amended and Restated Credit Agreement. During 2012, we also paid $1.8 million for debt issuance costs.

We expect to use $8.8 million of cash in 2015 for financing activities, comprised of quarterly contractual payments of $1.9 million on our term loan facility, and $1.3 million for our capital lease obligations. In addition, from time to time we may make payments to pay down our revolving credit facility with future cash flows generated from operating activities.

Other Liquidity Matters

Pension Plans

We maintain two defined benefit pension plans—one plan in the U.K. (the “U.K. Plan”) and one plan in Japan (the “Japan Plan”). Our U.K. Plan was closed to new members in 1997 and stopped accruing additional pension benefits for existing members in 2003, thereby limiting our obligation to benefits earned through that date. Benefits under this plan were based on the employees’ years of service and compensation as of the date the plan was frozen. On July 1, 2013, the Company provided a Guarantee (the “Guarantee”) in favor of the trustees of the U.K. Plan with respect to all present and future obligations and liabilities (whether actual or contingent and whether owed jointly or severally and in any capacity whatsoever) of GSI Group Limited, a wholly owned subsidiary of GSI Group Inc. We amended the Japan Plan in December 2014 and will convert it into a defined contribution plan in the first quarter of 2015. The Company has included the effect of this plan amendment in the expense calculation for 2014.

Our funding policy is to fund pensions based on actuarial methods as permitted by regulatory authorities. The results of funding valuations depend on the assumptions that we make with regard to attributes such as asset returns, rates of members’ benefits increases, mortality, retail price inflation and other market driven changes. The assumptions used represent one estimate of a possible future outcome. The final cost to us will be determined by events as they actually become known. Due to the underfunded positions that our U.K. Plan currently has and potential changes in the actual outcomes relative to our assumptions, we may have to increase payments to fund this plan in the future.

In August 2013, we agreed to increase our annual funding contributions for the U.K. Plan from approximately $0.8 million to $1.0 million annually through 2021. The Japanese plan will be terminated in the first quarter of 2015.  The accrued retirement allowance amount calculated by Japanese retirement benefit rules on a voluntary retirement basis as of March 1, 2015 (excess of plan assets), will be transferred over 4 years to each employee’s new defined contribution plan account.

As a result of the covenant that exists between our U.K. subsidiary and the Plan Trustees regarding the funding of the U.K. Plan, our ability to transfer assets outside our U.K. subsidiary, and its wholly owned subsidiary in China, may be limited.

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Off-Balance Sheet Arrangements, Contractual Obligations

Contractual Obligations

The following table summarizes our contractual obligations at December 31, 2014 and the effect such obligations are expected to have on liquidity and cash flow in future years. We have excluded the future cash payments for unrecognized tax benefits, including interest and penalties, in the amount of $7.3 million because we are uncertain if and when such amounts may be settled. These unrecognized tax benefits have been classified as long-term liabilities on the consolidated balance sheets and have been further explained in Note 13 to our Consolidated Financial Statements included in Item 8 of this Annual Report on Form 10-K.

Contractual Obligations	Total		2015		2016-2017		2018-2019		Thereafter
	(In thousands)
Senior Credit Facilities (1)	$	115,000	$	7,500	$	107,500	$	—	$	—
Interest on Senior Credit Facilities (2)		8,736		3,238		5,498		—		—
Capital leases		14,601		1,261		2,551		1,744		9,045
Operating leases (3)		22,319		4,888		7,214		4,612		5,605
Purchase commitments (4)		51,003		49,462		1,541		—		—
U.K. pension plan (5)		6,772		1,034		2,159		2,285		1,294
Total contractual cash obligations	$	218,431	$	67,383	$	126,463	$	8,641	$	15,944

(1) On December 27, 2012, we entered into an amended and restated credit agreement. As of December 31, 2014, a total of $35.0 million of term loan debt and $80.0 million of revolving credit facility were outstanding under the Senior Credit Facilities. The term loan is payable in 12 quarterly installments of $1.9 million with the remaining amount due upon maturity in December 2017. The revolving credit facility is due at maturity in 2017.

(2) For the purpose of this calculation, interest rates on floating rate obligation (LIBOR plus applicable margin, as defined in the Amended and Restated Credit Agreement) were used throughout the contractual life of the term loan.

(3) These amounts primarily represent the gross amounts due for facilities that are leased. The amounts include payments due with respect to both active operating facilities and idle facilities that have been vacated as a result of our restructuring actions.

(4) Purchase commitments represent unconditional purchase obligations as of December 31, 2014.

(5) Assumes funding obligations equivalent to $1.0 million per year, increasing 2.9% through January 2021 based on annual funding contributions in effect as of December 31, 2014. Future funding requirements will be affected by various actuarial assumptions and actual experience of the pension plan.

Off-Balance Sheet Arrangements

Through December 31, 2014, we have not entered into any off-balance sheet arrangements or material transactions with unconsolidated entities or other persons.

Critical Accounting Policies and Estimates

The preparation of financial statements in conformity with generally accepted accounting principles requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenues and expenses during the reporting periods. On an ongoing basis, we evaluate our estimates, assumptions and judgments, including those related to revenue recognition, inventory valuation, assessment of the valuation of goodwill, intangible assets and tangible long-lived assets, employee benefit plans, restructuring charges, accounting for income taxes, and accounting for loss contingencies. Actual results could differ significantly from our estimates in the future.

We believe that the following critical accounting policies and estimates most significantly affect the portrayal of our financial condition and results of operations and require the most difficult and subjective judgments.

Revenue Recognition. Revenue from the sale of products is recognized when we meet all four of the criteria for revenue recognition within the fiscal period. These criteria are: evidence of an arrangement exists; delivery has occurred; the price is fixed or determinable; and collection of the resulting receivable is reasonably assured. Revenue recognition requires judgment and estimates, which may affect the amount and timing of revenue recognized in any given period.

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The Laser Products, Medical Technologies, and Precision Motion segments have revenue transactions that are comprised of both single-element and multiple-element transactions. Multiple-element transactions may include two or more products and may occasionally contain installation, training, non-standard/extended warranties, or preventative maintenance plans. For multiple-element transactions, revenue is generally recognized upon shipment, using the relative selling price method per Accounting Standards Codification (“ASC”) 605-25 “Revenue – Multiple-Element Arrangements”. Single-element transactions are typically recognized upon shipment at their contractually stated price.

Installation and training are generally routine processes that occur within a short period of time from delivery and we have concluded that these obligations are inconsequential and perfunctory.

The Company generally provides warranties for its products. The standard warranty period is typically 12 to 24 months for the Laser Products and Precision Motion segments and 12 months to 60 months for the Medical Technologies segment. The standard warranty period for product sales is accounted for under the provisions of ASC 450 “Contingencies”, as the Company has the ability to ascertain the likelihood of the liability and can reasonably estimate the amount of the liability. A provision for the estimated cost related to warranty is recorded to cost of goods sold at the time revenue is recognized. The Company’s estimate of costs to service the warranty obligations is based on historical experience and expectations of future conditions. To the extent the Company experiences warranty claims or costs associated with servicing those claims that differ from the original estimates, revisions to the estimated warranty liability are recorded at that time, with an offsetting entry recorded to cost of goods sold. On occasion, the Company sells separately priced non-standard/extended warranty services or preventative maintenance plans, which are accounted for in accordance with provisions of ASC 605-20-25-3, “Separately Priced Extended Warranty and Product Maintenance Contracts”. Under this guidance, we recognize the separately priced extended/non-standard warranty and preventative maintenance fees ratably over the associated period.

At the request of our customers, we may at times perform professional services, generally for the maintenance and repairs of products previously sold to those customers. These services are usually in the form of time and materials based contracts which are short in duration. Revenue for time and materials services is recorded at the completion of services requested under a customer’s purchase order.

We typically negotiate trade discounts and agreed terms in advance of order acceptance and record any such items as a reduction of revenue. Our revenue recognition policy allows for revenue to be recognized under arrangements where the payment terms are 180 days or less, presuming all other revenue recognition criteria have been met. From time to time, based on our review of customer creditworthiness and other factors, we may provide our customers with payment terms that exceed 180 days. To the extent all other revenue recognition criteria have been met, we recognize revenue for these extended payment arrangements as the payments become due. During 2014, no customers were extended credit beyond 180 days.

In May 2014, the FASB issued Accounting Standards Update (“ASU”) 2014-09, “Revenue from Contracts with Customers”, which provides guidance for revenue recognition. ASU 2014-09 requires entities to recognize revenue in a way that depicts the transfer of goods or services to customers at an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 will be effective for annual and interim reporting periods beginning after December 15, 2016. Early adoption is not permitted. Upon adoption, an entity may apply the new guidance either retrospectively to each prior reporting period presented or retrospectively only to customer contracts not yet completed as of the date of adoption with the cumulative effect of initially applying the standard recognized in beginning retained earnings at the date of the initial application. The Company is currently evaluating the impact of the new standard on the Company’s consolidated financial statements.

Inventories. Inventories, which include materials and conversion costs, are stated at the lower of cost or market, using a first-in, first-out method. We periodically review these values to ascertain that market value of the inventory continues to exceed its recorded cost. Generally, reductions in value of inventory below cost are caused by technological obsolescence of the inventory.

We regularly review inventory quantities on hand and, when necessary, record provisions for excess and obsolete inventory based on either our forecasted product demand and production requirements or historical trailing usage of the product. If our sales do not materialize as planned or at historical levels, we may have to increase our reserve for excess and obsolete inventory, which would reduce our earnings. If actual market conditions are more favorable than anticipated, inventory previously written down may be sold, resulting in lower cost of sales and higher income from operations than expected in that period.

Valuation of Long-lived Assets. The purchase price we pay for acquired companies is allocated first to the identifiable assets acquired and liabilities assumed at their fair value. Any excess purchase price is then allocated to goodwill. We make various assumptions and estimates in order to assign fair value to acquired tangible and intangible assets and liabilities, including those associated with cash flow forecasts, as well as discount rates and customer attrition rates, among others. Actual cash flows may vary from forecasts used to value the intangible assets at the time of the business combination.

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Our most significant identifiable intangible assets are customer relationships, acquired technologies, trademarks and trade names. In addition to our review of the carrying values of each asset, the useful life assumptions for each asset, including the classification of certain intangible assets as “indefinite lived”, are reviewed on a periodic basis to determine if changes in circumstances warrant revisions to them. All definite-lived intangible assets are amortized over the periods in which their economic benefits are expected to be realized.

Impairment analyses of goodwill and indefinite-lived intangible assets are conducted in accordance with ASC 350, “Intangibles—Goodwill and Other.” We test our goodwill balances annually as of the beginning of the second quarter or more frequently if indicators are present or changes in circumstances suggest that impairment may exist. Should the fair value of the Company’s goodwill or indefinite-lived intangible assets decline because of reduced operating performance, market declines, or other indicators of impairment, or as a result of changes in the discount rate, charges for impairment may be necessary. In performing the test, we utilize the two-step approach which requires a comparison of the carrying value of each of our reporting units to the fair value of these reporting units. The Company’s product lines generally correspond with its reporting units which is the level at which the Company evaluates its goodwill, intangible assets and other long-lived assets for impairment. If the carrying value of a reporting unit exceeds its fair value, we calculate the implied fair value of the reporting unit’s goodwill and compare it to the carrying value. If the carrying value of goodwill exceeds its implied fair value, an impairment charge is recorded for the difference. The fair value of a reporting unit is primarily based on a discounted cash flow (“DCF”) method. The DCF approach requires that we forecast future cash flows for each of the reporting units and discount the cash flow streams based on a weighted average cost of capital (“WACC”) that is derived, in part, from comparable companies within similar industries. The DCF calculations also include a terminal value calculation that is based upon an expected long-term growth rate for the applicable reporting unit. The carrying values of each reporting unit include assets and liabilities which relate to the reporting unit’s operations. Additionally, reporting units that benefit from corporate assets or liabilities are allocated a portion of those corporate assets and liabilities on a proportional basis.

Our indefinite-lived intangible assets include trade names that were acquired as part of our acquisition of Excel Technologies Inc. in 2008. We assess these indefinite-lived intangible assets for impairment on an annual basis, and more frequently if impairment indicators are identified. We also periodically reassess their continuing classification as indefinite-lived intangible assets. Impairment exists if the fair value of the intangible asset is less than its carrying value. An impairment charge equal to the difference is recorded to reduce the carrying value to its fair value.

We evaluate amortizable intangible assets and other long-lived assets for impairment in accordance with ASC 360-10-35-15, “Impairment or Disposal of Long-Lived Assets”, whenever changes in events or circumstances indicate that carrying values may exceed their undiscounted cash flow forecasts. If undiscounted cash flow forecasts indicate that the carrying value of a definite-lived intangible asset or other long-lived asset may not be recoverable, a fair value assessment is performed. For intangible assets, fair value estimates are derived from discounted cash flow forecasts. For other long-lived assets (primarily property, plant and equipment), fair value estimates are derived from the sources most appropriate for the particular asset and have historically included such approaches as sales comparison approach and replacement cost approach. If fair value is less than carrying value, an impairment charge equal to the difference is recorded. We also review the useful life and residual value assumptions for definite-lived intangible assets and other long-lived assets on a periodic basis to determine if changes in circumstances warrant revisions to them.

Factors which may trigger an impairment of our goodwill, intangible assets and other long-lived assets include the following:

· underperformance relative to historical or projected future operating results;

· changes in our use of the acquired assets or the strategy for our overall business;

· negative industry or economic trends;

· interest rate changes;

· technological changes or developments;

· changes in competition;

· loss of key customers or personnel;

· adverse judicial or legislative outcomes or political developments;

· significant declines in our stock price for a sustained period of time; and

· the decline of our market capitalization below net book value as of the end of any reporting period.

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The occurrence of any of these events or any other unforeseeable event or circumstance that materially affects future operating results or cash flows may cause an impairment that is material to our results of operations or financial position in the reporting period in which it occurs or is identified.

The most recent annual goodwill and indefinite-lived intangible asset impairment test was performed as of the beginning of the second quarter of 2014, noting no impairment. Implied fair values of all reporting units exceeded their carrying values by at least 10%. For the annual impairment test performed during the second quarter of 2014, the Company forecasted growth in the NDS business due to expected new product launches in 2014, higher demand for NDS’s current products, and an expectation that all products of the NDS business would continue to be sold.

During the fourth quarter of 2014, the Company completed its annual operating plan for the NDS business following the MEDICA and RSNA tradeshows, two main tradeshows for the NDS business. Expectations for sales and operating profit were lowered significantly versus prior forecasts. The lower expectations for sales and operating profit were driven by a strategic decision to discontinue certain NDS products, lack of seasonal uptick during the fourth quarter of 2014 attributable to slower than expected hospital capital expenditures, and lower than expected customer orders from the fourth quarter tradeshows.

In considering the above mentioned factors, the Company determined that a triggering event occurred in the fourth quarter of 2014 and that an interim impairment review of the goodwill and intangible assets related to the NDS reporting unit was necessary.  First, the Company performed a long-lived asset recoverability test in accordance with ASC 360-10-35-15, “Impairment or Disposal of Long-Lived Assets”, on the lowest level of identifiable cash flows, which was determined to be the NDS business.  The recoverability test compared the carrying value of the NDS business to the undiscounted cash flows. As a result of this recoverability test, the Company determined that the assets were not recoverable.  The Company then determined the fair value of the NDS business using a discounted cash flow methodology, which resulted in a $21.8 million intangible assets impairment charge in the fourth quarter of 2014. The impairment charge is reflected in the operating results of the Medical Technologies segment.  

Subsequent to impairing the NDS business’s long-lived assets, step one of the goodwill impairment analysis was performed.  As the carrying value of the NDS reporting unit exceeded its implied fair value, the Company performed the second step of the goodwill test, comparing the implied fair value of the reporting unit’s goodwill with its carrying amount to measure the impairment loss. After completing the second step of the goodwill impairment test, the Company recorded a $19.6 million goodwill impairment charge in the fourth quarter of 2014. The impairment charge is reflected in the operating results of the Medical Technologies segment.    

We maintain a significant balance in our goodwill, intangible assets and other long-lived assets. The following table shows the breakdown of goodwill, intangibles and property, plant and equipment by reportable segment as of December 31, 2014 (in thousands):

	Goodwill		Intangible Assets		Property, Plant & Equipment
Laser Products	$	30,493	$	25,850	$	9,123
Medical Technologies		51,008		40,079		13,309
Precision Motion		9,245		1,313		4,244
Corporate, shared services and unallocated		—		—		13,412
Total	$	90,746	$	67,242	$	40,088

Pension Plans. Two of our subsidiaries, located in the U.K. and Japan, maintain defined benefit pension plans.

Our pension plan in the U.K (the “U.K. Plan”) was closed to new membership in 1997 and stopped accruing for additional pension benefits for existing members in 2003, limiting our obligation to benefits earned through that date. Benefits under this plan were based on the employees’ years of service and compensation as of the date the plan was frozen, adjusted for inflation. At December 31, 2014, the market value of the plan assets was $5.8 million, or 14.7%, less than the projected benefit obligation.

The cost and obligations of our U.K. Plan are calculated using many assumptions to estimate the benefits, the amount of which cannot be completely determined until the benefit payments cease. Major assumptions used in the accounting for this pension plan include the discount rate, rate of inflation, and expected return on plan assets. Assumptions are determined each year based on data and appropriate market indicators in consultation with a third-party actuary. Should any of these assumptions change, they would have an effect on net periodic pension cost and the unfunded benefit obligation at year end. A 50 basis point decrease in the discount rate as of December 31, 2014 would change the pension obligation by $3.7 million.

Our Japanese pension plan is a tax qualified plan that covers substantially all Japanese employees. Benefits are based on years of service and the employee’s compensation at retirement. We fund the plan periodically to meet requirements for current benefit

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payments as well as a portion of future benefits as permitted by local regulations. Since this is an active plan, a significant portion of the pension benefit obligation is determined based on the rate of future compensation increases. We purchase annuities under group insurance contracts. In December 2014, the Company amended the Japan Plan, which will be terminated on March 1, 2015 and replaced by a defined contribution plan. Upon termination, the plan assets will be transferred to each employee’s deferred contribution plan account. The loss resulting from this amendment was recognized in 2014. At December 31, 2014, the market value of the plan assets was $0.3 million less than the projected benefit obligation. Changes in assumptions are not material to this plan.

Restructuring Charges. In accounting for our restructuring activities, we follow the provisions of ASC 420, “Exit or Disposal Cost Obligations”. In accounting for these obligations, we make assumptions related to the amounts of employee severance and benefits related costs, the time period over which facilities will remain vacant, sublease terms, sublease rates, and discount rates. Additionally, we make assumptions on the estimated remaining useful lives of assets being restructured and the residual value of the assets. Estimates and assumptions are based on the best information available at the time the obligation has arisen. These estimates are reviewed and revised as facts and circumstances dictate. Changes in these estimates could have a material effect on the amount previously expensed against our earnings and currently accrued on our consolidated balance sheet.

Accounting for Income Taxes. As part of the process of preparing our consolidated financial statements, we are required to calculate our income tax provision (benefit) in each of the jurisdictions in which we operate. This process involves estimating our current income tax provision (benefit) together with assessing temporary differences resulting from differing treatment of items for tax and accounting purposes. These differences result in deferred tax assets and liabilities, which are reported on our consolidated balance sheet.

Judgment is required in determining our worldwide income tax provision. In the ordinary course of a global business, there are many transactions and calculations where the ultimate outcome is uncertain. Although we believe our estimates are reasonable, no assurance can be given that the final outcome of these matters will not be different from that which is reflected in our historical income tax provisions and accruals. Such differences could have a material impact on our income tax provision and net income in the period in which such determination is made.

We record a valuation allowance on our deferred tax assets when it is more likely than not that they will not be realized. We have considered future taxable income and ongoing prudent and feasible tax planning strategies in assessing the need for a valuation allowance. In the event we determine that we are able to realize our deferred tax assets in the future in excess of their net recorded amount, an adjustment to the valuation allowance for the deferred tax assets would increase our net income in the period such determination is made. Likewise, should we determine that we will not be able to realize all or part of our net deferred tax assets in the future, an adjustment to the valuation allowance for the deferred tax assets will reduce our net income in the period such determination is made.

In conjunction with our ongoing review of our actual results and anticipated future earnings, we continuously reassess the possibility of increasing the valuation allowance currently in place on our deferred tax assets. We recorded a valuation allowance against current year net operating losses of $0.6 million during the year ended December 31, 2014. The increase of our valuation allowance was determined in accordance with the provisions of ASC 740, “Income Taxes,” which requires an assessment of both positive and negative evidence when determining whether it is more likely than not that deferred tax assets are recoverable. Such assessment is required on a jurisdiction by jurisdiction basis. Based on historical operating income and continuing projected income, future reversals of temporary differences and tax planning strategies, we have concluded that sufficient negative evidence indicates that it is not more likely than not that deferred tax assets will be realized.

The amount of income taxes we pay is subject to audits by federal, state and foreign tax authorities, which may result in proposed assessments. We believe that we have adequately provided for any reasonably foreseeable outcome related to these matters. However, our future results may include favorable or unfavorable adjustments to our tax liabilities in the period that the assessments are made or resolved, or when the statute of limitations for certain periods expires. As of December 31, 2014, the total amount of gross unrecognized tax benefits was $6.3 million, of which $4.1 million would favorably affect our effective tax rate, if recognized. As of December 31, 2013, the amount of gross unrecognized tax benefits totaled approximately $7.1, of which $4.9 million would favorably affect our effective tax rate, if recognized. Over the next twelve months, the Company may need to record up to $0.7 million of previously unrecognized tax benefits in the event of statute of limitations closures. We believe that there are no other jurisdictions in which the outcome of unresolved issues or claims is likely to be material to our results of operations, financial position or cash flows. Furthermore, we believe that we have adequately provided for all income tax uncertainties.

Income and foreign withholding taxes have not been recognized on the excess of the amount for financial reporting purposes over the tax basis of investments in foreign subsidiaries that are essentially permanent in nature. This amount becomes taxable upon a repatriation of assets from a subsidiary or a sale or liquidation of a subsidiary. The amount of undistributed earnings of foreign

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subsidiaries totaled $15.8 million as of December 31, 2014. Determination of the amount of any unrecognized deferred income tax liabilities on this temporary difference is not practicable because of the complexities of the hypothetical calculation.

Loss Contingencies. We are subject to legal proceedings, lawsuits and other claims relating to labor, service and other matters arising in the ordinary course of business. Quarterly, we review the status of each significant matter and assess our potential financial exposure. If the potential loss from any claim or legal proceeding is considered probable and the amount can be reasonably estimated, we accrue a liability for the estimated loss. Significant judgment is required in both the determination of probability and the determination as to whether an exposure is reasonably estimable. Because of uncertainties related to these matters, accruals are based only on the best information available at the time. As additional information becomes available, we reassess the potential liability related to our pending claims and litigation and may revise our estimates. Such revisions in the estimates of the potential liabilities could have a material impact on our results of operations and financial position. We expense legal fees as incurred.

Recent Accounting Pronouncements

See Note 2 to Consolidated Financial Statements for recent accounting pronouncements that could have an effect on us.

Item 7A. Quantitative and Qualitative Disclosures about Market Risk

We are exposed to market risk from changes in foreign currency exchange rates and interest rates, which could affect our operating results, financial position and cash flows. We manage our exposure to these market risks through our regular operating and financing activities. We generally do not enter into derivative financial instruments to manage foreign currency exposure.

Foreign Currency Exchange Rate Risk and Sensitivity

We are exposed to changes in foreign currency exchange rates which could affect operating results as well as our financial position and cash flows. The primary foreign currency denominated transactions include revenue and expenses and the resulting accounts receivable and accounts payable balances reflected on our balance sheet. Therefore, the change in the value of the U.S. dollar compared to foreign currencies will have either a positive or negative effect on our financial position and results of operations. Historically, our primary exposure has related to transactions denominated in the Euro, British Pound and Japanese Yen.

A hypothetical depreciation of 10% in foreign currency exchange rate, primarily cumulative translation adjustments from the quoted foreign currency exchange rates as of December 31, 2014 would impact shareholder equity by $9.1 million or 4%. We did not hold foreign currency rate derivative contracts as of December 31, 2014.

Interest Rates

Our exposure to market risk associated with changes in interest rates relates primarily to our debt obligations. We have $115.0 million of outstanding variable rate debt as of December 31, 2014. A 100 basis point increase in interest rates at December 31, 2014 would increase our annual pre-tax interest expense by approximately $1.2 million. We do not actively trade derivative financial instruments, but may use them in the future to manage interest rate positions associated with our debt instruments. We did not hold interest rate derivative contracts as of December 31, 2014.

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Item 8. Financial Statements and Supplementary Data

GSI GROUP INC.

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Report of Independent Registered Public Accounting Firm – PricewaterhouseCoopers LLP	44
Report of Independent Registered Public Accounting Firm – Ernst & Young LLP	45
Consolidated Balance Sheets as of December 31, 2014 and 2013	46
Consolidated Statements of Operations for the years ended December 31, 2014, 2013 and 2012	47
Consolidated Statements of Comprehensive Income (Loss) for the years ended December 31, 2014, 2013 and 2012	48
Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2014, 2013 and 2012	49
Consolidated Statements of Cash Flows for the years ended December 31, 2014, 2013 and 2012	50
Notes to Consolidated Financial Statements	51

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Board of Directors and Stockholders of GSI Group Inc.

In our opinion, the accompanying consolidated balance sheets and the related consolidated statements of operations, comprehensive income (loss), stockholders’ equity and cash flows present fairly, in all material respects, the financial position of GSI Group Inc. and its subsidiaries at December 31, 2014 and December 31, 2013, and the results of their operations and their cash flows for each of the two years in the period ended December 31, 2014 in conformity with accounting principles generally accepted in the United States of America.  Also in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2014, based on criteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). The Company's management is responsible for these financial statements, for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in Management’s Annual Report on Internal Controls Over Financial Reporting appearing under Item 9A.  Our responsibility is to express opinions on these financial statements and on the Company's internal control over financial reporting based on our integrated audits.  We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States).  Those standards require that we plan and perform the audits to obtain reasonable assurance about whether the financial statements are free of material misstatement and whether effective internal control over financial reporting was maintained in all material respects.  Our audits of the financial statements included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation.  Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk.  Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinions.

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles.  A company’s internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

As described in Management’s Annual Report on Internal Controls Over Financial Reporting appearing under Item 9A, management has excluded JADAK from its assessment of internal control over financial reporting as of December 31, 2014 because it was acquired by the Company in a purchase business combination during 2014.  We have also excluded JADAK from our audit of internal control over financial reporting.  JADAK is a wholly-owned subsidiary whose total assets and total revenues represent 7% and 12%, respectively, of the related consolidated financial statement amounts as of and for the year ended December 31, 2014.

/s/ PricewaterhouseCoopers LLP

Boston, Massachusetts

March 6, 2015

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Board of Directors and Shareholders of GSI Group Inc.

We have audited the accompanying consolidated statements of operations, comprehensive income (loss), stockholders’ equity, and cash flows of GSI Group Inc. for the year ended December 31, 2012. These financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these financial statements based on our audit.

We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that our audit provides a reasonable basis for our opinion.

In our opinion, the financial statements of GSI Group Inc. referred to above present fairly, in all material respects, the consolidated results of its operations and its cash flows for the year ended December 31, 2012, in conformity with U.S. generally accepted accounting principles.

/s/ Ernst & Young LLP

Boston, Massachusetts

March 18, 2013, except for Notes 1 and 4, as to which the date is March 6, 2015

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GSI GROUP INC.

CONSOLIDATED BALANCE SHEETS

(In thousands of U.S. dollars or shares)

	December 31,			December 31,
	2014			2013
ASSETS
Current Assets
Cash and cash equivalents	$	51,146		$	60,980
Accounts receivable, net of allowance of $282 and $575, respectively		51,494			48,552
Inventories		62,943			58,290
Income taxes receivable		5,906			5,715
Deferred tax assets		5,971			5,122
Prepaid expenses and other current assets		5,236			5,134
Assets of discontinued operations		631			17,836
Total current assets		183,327			201,629
Property, plant and equipment, net		40,088			31,303
Deferred tax assets		2,912			—
Other assets		14,604			9,426
Intangible assets, net		67,242			65,293
Goodwill		90,746			71,156
Total assets	$	398,919		$	378,807
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current Liabilities
Current portion of long-term debt	$	7,500		$	7,500
Accounts payable		25,592			24,361
Income taxes payable		1,189			1,018
Deferred tax liabilities		208			177
Accrued expenses and other current liabilities		19,401			22,288
Liabilities of discontinued operations		324			6,143
Total current liabilities		54,214			61,487
Long-term debt		107,500			64,000
Deferred tax liabilities		35			293
Income taxes payable		7,097			5,596
Other liabilities		18,819			5,028
Total liabilities		187,665			136,404
Commitments and Contingencies (Note 15)
Stockholders’ Equity:
Common shares, no par value; Authorized shares: unlimited;    Issued and outstanding: 34,219 and 33,991, respectively		423,856			423,856
Additional paid-in capital		28,590			25,383
Accumulated deficit		(225,165	)		(200,913	)
Accumulated other comprehensive loss		(16,456	)		(6,342	)
Total GSI Group Inc. stockholders’ equity		210,825			241,984
Noncontrolling interest		429			419
Total stockholders’ equity		211,254			242,403
Total liabilities and stockholders’ equity	$	398,919		$	378,807

The accompanying notes are an integral part of these consolidated financial statements.

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GSI GROUP INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands of U.S. dollars or shares, except per share amounts)

	Year Ended December 31,
	2014			2013			2012
Sales	$	364,706		$	316,910		$	243,796
Cost of sales		214,539			184,683			138,278
Gross profit		150,167			132,227			105,518
Operating expenses:
Research and development and engineering		28,954			23,787			18,530
Selling, general and administrative		84,380			76,337			59,707
Amortization of purchased intangible assets		10,262			7,270			2,650
Restructuring and acquisition related costs		1,935			5,387			4,369
Impairment of goodwill and intangible assets		41,442			—			—
Total operating expenses		166,973			112,781			85,256
Operating income (loss) from continuing operations		(16,806	)		19,446			20,262
Interest income (expense), net		(5,096	)		(3,468	)		(2,792	)
Foreign exchange transaction gains (losses), net		1,281			(1,301	)		(1,347	)
Other income (expense), net		2,706			1,500			579
Income (loss) from continuing operations before income taxes		(17,915	)		16,177			16,702
Income tax provision (benefit)		(1,006	)		6,200			(11,595	)
Income (loss) from continuing operations		(16,909	)		9,977			28,297
Loss from discontinued operations, net of tax		(5,607	)		(2,054	)		(10,974	)
Gain (loss) on disposal of discontinued operations, net of tax		(1,726	)		(592	)		2,255
Consolidated net income (loss)		(24,242	)		7,331			19,578
Less: Net income attributable to noncontrolling interest		(10	)		(22	)		(40	)
Net income (loss) attributable to GSI Group Inc.	$	(24,252	)	$	7,309		$	19,538
Earnings (loss) per common share from continuing operations:
Basic	$	(0.49	)	$	0.29		$	0.84
Diluted	$	(0.49	)	$	0.29		$	0.84
Loss per common share from discontinued operations:
Basic	$	(0.21	)	$	(0.08	)	$	(0.26	)
Diluted	$	(0.21	)	$	(0.08	)	$	(0.26	)
Earnings (loss) per common share attributable to GSI Group Inc.:
Basic	$	(0.70	)	$	0.21		$	0.58
Diluted	$	(0.70	)	$	0.21		$	0.58
Weighted average common shares outstanding—basic		34,352			34,073			33,775
Weighted average common shares outstanding—diluted		34,352			34,396			33,936
Amounts attributable to GSI Group Inc.:
Income (loss) from continuing operations	$	(16,909	)	$	9,977		$	28,297
Loss from discontinued operations		(7,343	)		(2,668	)		(8,759	)
Net income (loss)	$	(24,252	)	$	7,309		$	19,538

The accompanying notes are an integral part of these consolidated financial statements.

47

GSI GROUP INC.

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)

(In thousands of U.S. dollars)

	2014			2013			2012
Consolidated net income (loss)	$	(24,242	)	$	7,331		$	19,578
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax (1)		(6,968	)		54			(1,510	)
Pension liability adjustments, net of tax (2)		(3,146	)		3,353			(3,215	)
Total other comprehensive income (loss)		(10,114	)		3,407			(4,725	)
Total consolidated comprehensive income (loss)		(34,356	)		10,738			14,853
Less: Comprehensive income attributable to noncontrolling interest		(10	)		(22	)		(40	)
Comprehensive income (loss) attributable to GSI Group Inc.	$	(34,366	)	$	10,716		$	14,813

(1) The tax effect on this component of comprehensive income was $622, $477 and $1,942 in 2014, 2013 and 2012, respectively.

(2) The tax effect on this component of comprehensive income was ($906), $900 and ($829) in 2014, 2013 and 2012, respectively.

The accompanying notes are an integral part of these consolidated financial statements.

48

GSI GROUP INC.

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(In thousands of U.S. dollars or shares)

	GSI Group Inc. Stockholders
	Capital Stock					Additional Paid-In			Accumulated Other Comprehensive			Retained Earnings (Accumulated			Noncontrolling
	#ofShares			Amount		Capital			Income (Loss)			Deficit)			Interest		Total
Balance at December 31, 2011		33,478		$	423,856	$	17,931		$	(5,024	)	$	(227,760	)	$	357	$	209,360
Net income		—			—		—			—			19,538			40		19,578
Issuance of common stock upon vesting of non-vested stock awards		383			—		—			—			—			—		—
Share-based compensation		—			—		4,631			—			—			—		4,631
Net settlement of vested stock awards		(65	)		—		(543	)		—			—			—		(543	)
Tax benefit (shortfalls) of vested stock awards		—			—		(95	)		—			—			—		(95	)
Other comprehensive loss, net of tax		—			—		—			(4,725	)		—			—		(4,725	)
Balance at December 31, 2012		33,796			423,856		21,924			(9,749	)		(208,222	)		397		228,206
Net income		—			—		—			—			7,309			22		7,331
Issuance of common stock upon vesting of non-vested stock awards		395			—		—			—			—			—		—
Repurchase of common stock		(50	)		—		(526	)		—			—			—		(526	)
Share-based compensation		—			—		5,624			—			—			—		5,624
Net settlement of vested stock awards		(150	)		—		(1,495	)		—			—			—		(1,495	)
Tax benefit (shortfalls) of vested stock awards		—			—		(144	)		—			—			—		(144	)
Other comprehensive income, net of tax		—			—		—			3,407			—			—		3,407
Balance at December 31, 2013		33,991			423,856		25,383			(6,342	)		(200,913	)		419		242,403
Net income (loss)		—			—		—			—			(24,252	)		10		(24,242	)
Issuance of common stock upon vesting of non-vested stock awards		362			—		—			—			—			—		—
Share-based compensation		—			—		4,659			—			—			—		4,659
Net settlement of vested stock awards		(134	)		—		(1,666	)		—			—			—		(1,666	)
Tax benefit (shortfalls) of vested stock awards		—			—		214			—			—			—		214
Other comprehensive loss, net of tax		—			—		—			(10,114	)		—			—		(10,114	)
Balance at December 31, 2014		34,219		$	423,856	$	28,590		$	(16,456	)	$	(225,165	)	$	429	$	211,254

The accompanying notes are an integral part of these consolidated financial statements.

49

GSI GROUP INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands of U.S. dollars)

	Year Ended December 31,
	2014			2013			2012
Cash flows from operating activities:
Consolidated net income (loss)	$	(24,242	)	$	7,331		$	19,578
Less: Loss from discontinued operations, net of tax		7,333			2,646			8,719
Income (loss) from continuing operations		(16,909	)		9,977			28,297
Adjustments to reconcile income (loss) from continuing operations to    net cash provided by operating activities of continuing operations:
Depreciation and amortization		23,797			19,570			12,458
Provision for inventory excess and obsolescence		832			1,582			1,853
Impairment of goodwill and intangible assets		41,442			—			—
Share-based compensation		4,329			5,442			4,534
Deferred income taxes		(6,736	)		3,886			(17,430	)
Earnings from equity investment		(2,700	)		(1,469	)		(556	)
Non-cash interest expense		1,379			965			1,049
Other non-cash items		1,586			1,230			422
Changes in assets and liabilities which provided (used) cash, excluding    effects from businesses purchased or classified as held for sale:
Accounts receivable		3,526			(1,826	)		(2,330	)
Inventories		(991	)		(1,688	)		(1,889	)
Prepaid expenses and other current assets		(527	)		854			282
Income taxes receivable		(206	)		10,848			6,161
Accounts payable, accrued expenses, deferred revenue    and other current liabilities		(4,698	)		5,958			7,155
Long-term income taxes payable		(158	)		532			(6,291	)
Other non-current assets and liabilities		24			317			(627	)
Cash provided by operating activities of continuing operations		43,990			56,178			33,088
Cash used in operating activities of discontinued operations		(1,701	)		(6,978	)		(4,658	)
Cash provided by operating activities		42,289			49,200			28,430
Cash flows from investing activities:
Purchases of property, plant and equipment		(5,415	)		(4,777	)		(3,521	)
Acquisition of businesses, net of cash acquired and escrow recovery		(88,238	)		(80,773	)		—
Proceeds from the sale of property, plant and equipment		112			253			168
Cash used in investing activities of continuing operations		(93,541	)		(85,297	)		(3,353	)
Cash provided by investing activities of discontinued operations		3,768			12,341			6,328
Cash provided by (used in) investing activities		(89,773	)		(72,956	)		2,975
Cash flows from financing activities:
Borrowings under revolving credit facility		77,000			60,000			5,000
Repayments of long-term debt and revolving credit facility		(33,500	)		(38,500	)		(23,000	)
Payments for debt issuance costs		(712	)		(145	)		(1,826	)
Payments of withholding taxes from stock-based awards		(1,666	)		(1,495	)		(543	)
Other financing activities		(841	)		(1,286	)		(743	)
Cash provided by (used in) financing activities of continuing operations		40,281			18,574			(21,112	)
Cash provided by (used in) financing activities of discontinued operations		—			—			—
Cash provided by (used in ) financing activities		40,281			18,574			(21,112	)
Effect of exchange rates on cash and cash equivalents		(2,631	)		374			660
Increase (decrease) in cash and cash equivalents		(9,834	)		(4,808	)		10,953
Cash and cash equivalents, beginning of year		60,980			65,788			54,835
Cash and cash equivalents, end of year	$	51,146		$	60,980		$	65,788
Supplemental disclosure of cash flow information:
Cash paid for interest	$	3,793		$	2,291		$	2,067
Cash paid for income taxes	$	6,087		$	2,197		$	3,440
Income tax refunds received	$	931		$	12,607		$	222
Supplemental disclosure of non-cash investing activity:
Accrual for capital expenditures	$	26		$	184		$	925
Supplemental disclosure of non-cash financing activity:
Assets acquired under capital lease obligation	$	10,438		$	—		$	—

The accompanying notes are an integral part of these consolidated financial statements.

50

GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

AS OF DECEMBER 31, 2014

1. Organization and Presentation

GSI Group Inc. and its subsidiaries (collectively referred to as the “Company”, “we”, “us”, “our”) design, develop, manufacture and sell precision photonic and motion control components and subsystems primarily to original equipment manufacturers (“OEM’s”) in the medical equipment and advanced industrial technology markets. Our highly engineered enabling technologies include laser sources, laser scanning and beam delivery products, optical data collection and machine vision technologies, medical visualization and informatics solutions, and precision motion control products. We specialize in collaborating with OEM customers to adapt our component and subsystem technologies to deliver highly differentiated performance in their applications.

Basis of Presentation

These consolidated financial statements have been prepared by the Company in U.S. dollars and in accordance with U.S. generally accepted accounting principles, applied on a consistent basis.

Basis of Consolidation

The consolidated financial statements include the accounts of GSI Group Inc. and its wholly owned subsidiaries. Intercompany accounts and transactions have been eliminated. The Company’s 50% owned joint venture, Excel Laser Technology Private Limited (the “India JV”), has been consolidated since it is a variable interest entity and the Company is considered the primary beneficiary of the joint venture. The India JV is reported as discontinued operations in the Company’s consolidated financial statements because it was part of the Scientific Lasers business that the Company divested in July 2014. The Company records noncontrolling interest in its consolidated statements of operations for the ownership interest of the minority owners of the India JV. Financial information related to the joint venture is not considered material to the consolidated financial statements. The Company is currently in negotiations with the joint venture partner to dissolve the joint venture.

The Company accounts for investments in businesses in which it owns between 20% and 50% using the equity method.

Reclassifications

In the first quarter of 2014, the Company’s Board of Directors committed to a plan to sell the Scientific Lasers business which sold products and services under the Continuum brand name within the Laser Products segment. The Company determined that the asset held-for-sale criteria were satisfied and began to report the Scientific Lasers business as discontinued operations in the first quarter of 2014. As a result, prior period information related to the business has been reclassified into discontinued operations to conform to current period presentation. The discontinued business has been excluded from the following Notes to Consolidated Financial Statements unless otherwise stated. See Note 4 to Consolidated Financial Statements for further information on discontinued operations.

Bankruptcy

In 2008, the Company did not file its quarterly report on Form 10-Q for the quarter ended September 26, 2008 within the time period required by the rules and regulations of the Securities and Exchange Commission (“SEC”) as a result of errors discovered by the Company in its application of revenue recognition standards concerning multiple-element revenue arrangements. The delay in the quarterly report on Form 10-Q caused a noncompliance with a covenant in the indenture governing the $210.0 million of 11% unsecured senior notes due 2013 (the “2008 Senior Notes”). On June 30, 2009, the Company reached an agreement with certain beneficial owners holding greater than 75% of the outstanding aggregate principal amount of the 2008 Senior Notes on a non-binding term sheet to consensually restructure the outstanding obligations under the 2008 Senior Notes. Between December 2008 and March 2009, the Company announced that it had discovered material errors related to its revenue recognition affecting 2004 through 2008 and that the annual reports for 2006, 2007 and 2008 and quarterly reports through the second quarter of 2008 should not be relied upon. In November 2009, the NASDAQ announced that the Company’s common stock was delisted and ceased trading on the NASDAQ Global Select Market as a result of the continued delays in the Company’s periodic filings with the SEC.

On November 20, 2009 (the “Petition Date”), GSI Group Inc. and two of its United States subsidiaries filed voluntary petitions for relief under Chapter 11 of the Bankruptcy Code in the United States Bankruptcy Court for the District of Delaware (the “Bankruptcy Court”) (the “Chapter 11 Cases”). Following the Petition Date, the Company continued to operate its business as “debtors-in-possession” in accordance with the applicable provisions of the Bankruptcy Code and orders of the Bankruptcy Court. In late December 2009, the United States trustee overseeing the Chapter 11 Cases appointed an Official Committee of Equity Security

51

GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

Holders (the “Equity Committee”) to represent the interests of the Company’s equity holders. In May 2010, the Company filed the final Chapter 11 reorganization plan (the “Final Chapter 11 Plan”) with the Bankruptcy Court.

On July 23, 2010 (the “Effective Date”), the Company successfully emerged from bankruptcy as a reorganized company pursuant to the Final Chapter 11 Plan. The Final Chapter 11 Plan deleveraged the Company’s balance sheet by reducing debt and increasing stockholders’ equity. The financial restructuring was accomplished through a debt-for-equity exchange and by using the proceeds from a shareholder rights offering and cash on hand to reduce outstanding indebtedness.

The Chapter 11 Cases were closed on September 2, 2011, and the Company no longer has any legal or material financial constraint relating to those cases.

Listing of Common Shares

The Company’s common shares were approved for listing on The NASDAQ Global Select Market on February 9, 2011 and began trading on February 14, 2011 under the symbol “GSIG”.

2. Summary of Significant Accounting Policies

Use of Estimates

The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the dates of the financial statements, and the reported amounts of sales and expenses during the reporting periods. The Company evaluates its estimates based on historical experience, current conditions and various other assumptions that it believes are reasonable under the circumstances. Estimates and assumptions are reviewed on an on-going basis and the effects of revisions are reflected in the period in which they are deemed to be necessary. Actual results could differ significantly from those estimates.

Foreign Currency Translation

The financial statements of the Company and its subsidiaries outside the United States have been translated into United States dollars. Assets and liabilities of foreign operations are translated from foreign currencies into United States dollars at the exchange rates in effect on the balance sheet date. Sales and expenses are translated at the average exchange rate in effect for the period. Accordingly, gains and losses resulting from translating foreign currency financial statements are reported as a separate component of other comprehensive loss in stockholders’ equity. Foreign currency transaction gains and losses, primarily from transactions denominated in currencies other than the functional currency, are included in the accompanying consolidated statements of operations.

Cash and Cash Equivalents

Cash equivalents, primarily money market accounts, are highly liquid investments with original maturities of three months or less. These investments are carried at cost, which approximates fair value.

Long-Term Investments

At December 31, 2014 and 2013, the Company had a 41% equity investment in a privately held company located in the United Kingdom, Laser Quantum Ltd. (“Laser Quantum”). During the second quarter of 2013, the Company’s ownership percentage increased from 25% to 41% as a result of a stock buyback program by Laser Quantum. The Company continues to use the equity method to record the results of this entity as it does not have a controlling interest in the entity. The Company recognized investment income of $2.7 million, $1.5 million and $0.6 million during 2014, 2013 and 2012, respectively, which is included in other income (expense) in the accompanying consolidated statements of operations. The Company’s net investment balance was $8.0 million and $5.7 million at December 31, 2014 and 2013, respectively, and is included in other long-term assets in the accompanying consolidated balance sheets.

52

GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

The summarized financial information for Laser Quantum is as follows (in thousands):

	Year Ended December 31,
	2014		2013		2012
Sales	$	23,013	$	16,269	$	13,039
Income from operations	$	7,434	$	4,720	$	3,592
Net income	$	6,627	$	3,745	$	2,215

	Year Ended December 31,
	2014		2013
Total assets (1)	$	25,423	$	20,990
Total liabilities	$	2,482	$	4,240

(1) Total assets at December 31, 2014 and 2013 include cash and cash equivalent of $17.1 million and $13.6 million, respectively.

Accounts Receivable and Allowance for Doubtful Accounts

Trade accounts receivable are recorded at the invoiced amount. The Company maintains an allowance for doubtful accounts based on the Company’s best estimate of probable credit losses resulting from the inability of the Company’s customers to make required payments. The Company determines the allowance based on a variety of factors including the age of amounts outstanding relative to their contractual due date, specific customer factors, and other known risks and economic trends. Charges recorded to the allowance for doubtful accounts are reflected as selling, general and administrative expenses and are recorded in the period that the outstanding receivables are determined to be uncollectible. Account balances are charged off against the allowance when the Company believes it is probable that the receivable will not be recovered.

For the years ended December 31, 2014, 2013 and 2012, the allowance for doubtful accounts was as follows (in thousands):

	2014			2013			2012
Balance at beginning of year	$	575		$	294		$	224
Provision charged to selling, general and administrative expenses		30			301			278
Allowance resulting from acquisitions		52			117			—
Write-offs, net of recoveries of amounts previously reserved		(352	)		(159	)		(222	)
Exchange rate changes		(23	)		22			14
Balance at end of year	$	282		$	575		$	294

Inventories

Inventories, which include materials and conversion costs, are stated at the lower of cost or market, using the first-in, first-out method. Market is defined as replacement cost for raw materials and net realizable value for other inventories. Demo inventory is recorded at the lower of cost or its net realizable value. The Company periodically reviews quantities of inventories on hand and compares these amounts to the expected use of each product. The Company records a charge to cost of goods sold for the amount required to reduce the carrying value of inventory to net realizable value. Costs associated with the procurement of inventories such as inbound freight charges, purchasing and receiving costs are capitalized in inventory on the consolidated balance sheets.

53

GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

Property, Plant and Equipment

Property, plant and equipment are recorded at cost, adjusted for any impairment, less accumulated depreciation. The Company uses the straight-line method to calculate the depreciation of its fixed assets over their estimated useful lives. Estimated useful lives for buildings and building improvements range from 3 to 30 years and 1 to 10 years for machinery and equipment. Leasehold improvements are amortized over the lesser of their useful lives or lease terms, including any renewal period options that are reasonably assured of being exercised. Repairs and maintenance costs are expensed as incurred. Certain costs to develop software for internal use are capitalized when the criteria under Accounting Standards Codification (“ASC”) 350-40, “Internal-Use Software,” are met. Lease arrangements meeting the criteria of ASC 840-30, “Leases – Capital Leases,” are capitalized based on the present value of future lease payments and depreciated over the term of the lease.

Goodwill, Intangibles and Long-Lived Assets

Goodwill represents the excess of the purchase price over the tangible assets, identifiable intangible assets and assumed liabilities acquired. For business combinations, allocations of the purchase price are based upon a valuation of assets and liabilities acquired. Assets acquired and liabilities assumed are recorded at their estimated fair values as of the acquisition date. The fair values of intangible assets are based on valuations using an income approach, with estimates and assumptions provided by management of the acquired companies and the Company. In connection with its acquisition of Excel Technologies, Inc. (“Excel”) in 2008, the Company acquired certain trade names that are classified as intangible assets with indefinite lives. Goodwill and indefinite-lived intangibles are not amortized but are assessed for impairment at least annually to ensure their current fair values exceed their carrying values.

The Company’s most significant intangible assets are patents and acquired technologies, customer relationships, trademarks and trade names. All definite-lived intangible assets are amortized over the periods in which their economic benefits are expected to be realized. The Company reviews the useful life assumptions, including the classification of certain intangible assets as “indefinite-lived”, on a periodic basis to determine if changes in circumstances warrant revisions to them.

The Company’s product lines generally correspond with its reporting units which is the level at which the Company evaluates its goodwill, intangible assets and other long-lived assets for impairment.

Impairment Charges

Impairment analyses of goodwill and indefinite-lived intangible assets are conducted in accordance with ASC 350, “Intangibles—Goodwill and Other”. This guidance specifies that goodwill and other intangible assets must be periodically tested for impairment. The Company tests its goodwill balances annually as of the beginning of the second quarter or more frequently if indicators are present or changes in circumstances suggest that an impairment may exist. The Company utilizes a quantitative analysis to test goodwill for impairment. This two-step approach requires a comparison of the carrying value of each of the Company’s reporting units to the fair value of these reporting units. The fair value of a reporting unit is primarily based on a discounted cash flow (“DCF”) method with a weighted average cost of capital. If the carrying value of a reporting unit exceeds its fair value, the Company calculates the implied fair value of the reporting unit’s goodwill and compares it to the goodwill’s carrying value. If the carrying value of the goodwill exceeds its implied fair value, an impairment charge is recorded for the difference.

The Company assesses indefinite-lived intangible assets for impairment on an annual basis as of the beginning of the second quarter, and more frequently if indicators are present or changes in circumstances suggest that an impairment may exist. The Company will also reassess the continuing classification of these indefinite-lived intangible assets as indefinite-lived when circumstances change such that the useful life may no longer be indefinite. The fair values of the Company’s indefinite-lived intangible assets are determined using the relief from royalty method, based on forecasted revenues. If the fair value of an indefinite-lived intangible asset is less than its carrying value, an impairment charge is recorded for the difference between the carrying value and the fair value of the impaired asset.

The carrying amounts of definite-lived long-lived assets are reviewed for impairment whenever changes in events or circumstances indicate that their carrying values may not be recoverable. The recoverability of carrying value is generally determined by comparison of the asset group’s carrying value to its undiscounted future cash flows. When this test indicates the potential for impairment, a fair value assessment is performed. Once an impairment is determined and measured, an impairment charge is recorded for the difference between the carrying value and the fair value of the impaired asset.

54

GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

Accumulated Other Comprehensive Income (Loss)

In 2013, the Company adopted Accounting Standards Update (“ASU”) 2013-02, “Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Comprehensive Income”. Under ASU 2013-02, an entity is required to provide information about the amounts reclassified out of accumulated other comprehensive income (loss) by component. In addition, an entity is required to present, either on the face of the financial statements or in the notes, significant amounts reclassified out of accumulated other comprehensive income (loss) by the respective line items of net income, but only if the amount reclassified is required to be reclassified in its entirety in the same reporting period. For amounts that are not required to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures that provide additional details about those amounts. ASU 2013-02 does not change the current requirements for reporting net income or other comprehensive income (loss) in the financial statements.

Revenue Recognition

The Company recognizes revenue when persuasive evidence of an arrangement exists, delivery has occurred, price is fixed or determinable, and collection of the resulting receivable is reasonably assured. Revenue recognition requires judgment and estimates, which may affect the amount and timing of revenue recognized in any given period.

The Company’s revenue transactions are comprised of both single-element and multiple-element transactions. Multiple-element transactions may include two or more products and occasionally also contain installation, training, non-standard/extended warranties, or preventative maintenance plans. For multiple-element transactions, revenue is generally recognized upon shipment, using the relative selling price method per ASC 605-25 “Revenue – Multiple-Element Arrangements”. Single-element transactions are typically recognized upon shipment at their contractually stated price.

Installation and training are generally routine processes that occur within a short period of time following delivery and the Company has concluded that these obligations are inconsequential and perfunctory.

The Company generally provides warranties for its products. The standard warranty period is typically 12 to 24 months for the Laser Products and Precision Motion segments and 12 months to 60 months for the Medical Technologies segment. The standard warranty period for product sales is accounted for under the provisions of ASC 450 “Contingencies”, as the Company has the ability to ascertain the likelihood of the liability, and can estimate the amount of the liability. A provision for the estimated cost related to warranty is recorded to cost of goods sold at the time revenue is recognized. The Company’s estimate of costs to service the warranty obligations are based on historical experience and expectations of future conditions. To the extent the Company experiences warranty claims or costs associated with servicing those claims that differ from the original estimates, revisions to the estimated warranty liability are recorded at that time.

The Company occasionally sells optional extended/non-standard warranty services and preventative maintenance contracts to customers. The Company accounts for these agreements in accordance with provisions of ASC 605-20-25-3, “Separately Priced Extended Warranty and Product Maintenance Contracts,” under which it recognizes the separately priced extended warranty and preventative maintenance fees ratably over the associated period.

The Company, at the request of its customers, may at times perform professional services, generally for the maintenance and repairs of products previously sold to those customers. These services are usually in the form of time and materials based contracts which are short in duration. Revenue for time and material services is recorded at the completion of services requested under a customer’s purchase order.

The Company typically negotiates trade discounts and agreed terms in advance of order acceptance and records any such items as a reduction of revenue. The Company’s revenue recognition policy allows for revenue to be recognized under arrangements where the payment terms are 180 days or less, presuming all other revenue recognition criteria have been met. From time to time, based on the Company’s review of customer creditworthiness and other factors, the Company may provide its customers with payment terms that exceed 180 days. To the extent all other revenue recognition criteria have been met, the Company recognizes revenue for these extended payment arrangements when payment is due. During 2014, no customers were extended credit beyond 180 days.

55

GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

Research and Development and Engineering Costs

Research and development and engineering (“R&D”) expenses are primarily comprised of employee related expenses and cost of materials for R&D projects. These costs are expensed as incurred.

Share-Based Compensation

The Company records the expense associated with share-based compensation awards to employees and directors based on the fair value of awards as of the grant date. For stock-based compensation awards that vest over time based on employment, such expenses are recognized in the consolidated statements of operations ratably over the vesting period of the award, net of estimated forfeitures. For performance-based restricted stock units, stock-based compensation expenses are recognized ratably over the vesting period when it is probable that the performance targets are expected to be achieved based on management’s projections.

Shipping & Handling Costs

Shipping and handling costs are recorded in cost of goods sold.

Advertising Costs

Advertising costs are expensed to selling, general and administrative expense as incurred and were not material for 2014, 2013 and 2012.

Restructuring and Acquisition Related Costs

The Company accounted for its restructuring activities in accordance with the provisions of ASC 420, “Exit or Disposal Cost Obligations”. The Company makes assumptions related to the amounts of employee severance benefits and related costs, the time period over which facilities will remain vacant, useful lives and residual value of long-lived assets, sublease terms, sublease rates and discount rates. Estimates and assumptions are based on the best information available at the time the obligation is recognized. These estimates are reviewed and revised as facts and circumstances dictate.

Acquisition related costs incurred to effect a business combination, including finder’s fees, legal, valuation and other professional or consulting fees, are expensed as incurred. Acquisition related costs also include expenses recognized under earn-out agreements in connection with the JADAK acquisition.

Accounting for Income Taxes

The asset and liability method is used to account for income taxes. Under the asset and liability method, deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to temporary differences between the financial statement carrying amounts of assets and liabilities and their respective tax bases. This method also requires the recognition of future tax benefits, such as net operating loss carryforwards, to the extent that it is more likely than not that such benefits will be realized. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which the temporary differences are expected to be recovered or settled. A valuation allowance is established to reduce the deferred tax assets if it is more likely than not that some or all of the related tax benefits will not be realized in the future and is assessed periodically to determine whether it is more likely than not that the tax benefits will be realized in the future and that such valuation should be released.

The majority of the Company’s business activities are conducted through its subsidiaries outside of Canada. Earnings from these subsidiaries are generally indefinitely reinvested in the local businesses. Further, local laws and regulations may also restrict certain subsidiaries from paying dividends to their parents. As such, the Company generally does not accrue income taxes for the repatriation of such earnings in accordance with ASC 740, “Income Taxes”. To the extent that there are excess accumulated earnings that the Company intends to repatriate from any such subsidiaries, the Company recognizes deferred tax liabilities on such foreign earnings.

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GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

The Company assesses its income tax positions and records tax benefits for all years subject to examination based on the evaluation of the facts, circumstances, and information available at each reporting date. For those tax positions with a greater than 50 percent likelihood of being realized upon ultimate settlement with a taxing authority that has full knowledge of all relevant information, the Company records a tax benefit. For those income tax positions that are not likely to be sustained, no tax benefit is recognized in the consolidated financial statements. The Company recognizes interest and penalties related to uncertain tax positions as part of the provision for income taxes.

Recent Accounting Pronouncements

Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity

In April 2014, the Financial Accounting Standards Board (“FASB”) issued ASU 2014-08, “Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” ASU 2014-08 provides guidance on determining when disposals can be presented as discontinued operations. ASU 2014-08 requires that only disposals representing a strategic shift that has (or will have) a major effect on an entity’s operations and financial results should be presented as discontinued operations. A strategic shift may include a disposal of a major line of business, a major equity method investment or a major part of an entity. Additionally, ASU 2014-08 requires expanded disclosures regarding discontinued operations. ASU 2014-08 will be effective prospectively for reporting periods beginning after December 15, 2014, with early adoption permitted. The Company will adopt this pronouncement in January 2015. The adoption of this amendment is not expected to have a material impact on the Company’s consolidated financial statements.

Revenue from Contracts with Customers

In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers”, which provides guidance for revenue recognition. ASU 2014-09 supersedes the revenue recognition requirements in ASC 605, “Revenue Recognition,” and requires entities to recognize revenue in a way that depicts the transfer of goods or services to customers at an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 will be effective for annual and interim reporting periods beginning after December 15, 2016. Early adoption is not permitted. Upon adoption, an entity may apply the new guidance either retrospectively to each prior reporting period presented or retrospectively only to customer contracts not yet completed as of the date of adoption with the cumulative effect of initially applying the standard recognized in beginning retained earnings at the date of the initial application. The Company is currently evaluating the impact of the new standard on the Company’s consolidated financial statements.

Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern

In August 2014, the FASB issued ASU 2014-15, "Presentation of Financial Statements - Going Concern (Subtopic 205-40)," which requires management to assess a company’s ability to continue as a going concern and to provide related footnote disclosures in certain circumstances. ASU 2014-15 will be effective for annual reporting periods ending after December 15, 2016. Early application is permitted. The Company does not expect the adoption of ASU 2014-15 to have an impact on the Company’s consolidated financial statements.

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GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

3. Business Combinations

JADAK

On March 14, 2014, the Company acquired 100% of the outstanding equity interests of JADAK, LLC , JADAK Technologies, Inc., and Advanced Data Capture Corporation (collectively, “JADAK”), a North Syracuse, New York-based provider of optical data collection and machine vision technologies to OEM medical device manufacturers, for $93.7 million in cash, net of working capital adjustments. The Company expects that the addition of JADAK will enable the Company to offer a broader range of highly engineered enabling technologies to leading medical equipment manufacturers. JADAK contributed sales of $45.4 million and income from continuing operations before income taxes of $2.7 million for the year ended December 31, 2014.

The final purchase price allocation is as follows (in thousands):

	Amount
Cash	$	1,140
Accounts receivable		7,907
Inventory		6,865
Property and equipment		904
Intangible assets		40,250
Goodwill		44,584
Other assets		2,064
Total assets acquired		103,714
Accounts payable		3,057
Other liabilities		2,380
Deferred tax liabilities		3,481
Total liabilities assumed		8,918
Total purchase price		94,796
Less: Cash acquired		(1,140	)
Total purchase price, net of cash acquired	$	93,656

The fair value of JADAK intangible assets is comprised of the following (in thousands):

			Weighted Average
	Estimated Fair		Amortization
	Value		Period
Customer relationships	$	23,570	20 years
Developed technology		10,910	10 years
Trademarks and trade names		2,130	10 years
Backlog		1,810	1 year
Non-compete covenant		1,830	5 years
Total	$	40,250

The purchase price allocation resulted in $44.6 million of goodwill and $40.3 million of identifiable intangible assets, $61.8 million of which is expected to be deductible for tax purposes. Intangible assets are being amortized over their weighted average useful lives primarily based upon the pattern in which economic benefits related to such assets are expected to be realized. The amount of goodwill recorded represents the anticipated incremental value of future cash flow potential attributable to: (i) JADAK’s ability to develop and market new products and technologies; (ii) JADAK’s ability to develop relationships with new customers; and (iii) expected sales synergies from cross-selling current and future product offerings of both JADAK and the Company to OEM customers.

The following unaudited pro forma information presents the combined financial results for the Company and JADAK as if the acquisition of JADAK had been completed as of January 1, 2013 (in thousands, except per share information):

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GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

	Year Ended December 31,
	2014			2013
Sales	$	375,737		$	370,462
Income (loss) from continuing operations	$	(16,067	)	$	11,900
Earnings per share from continuing operations - Basic	$	(0.47	)	$	0.35
Earnings per share from continuing operations - Diluted	$	(0.47	)	$	0.35

The pro forma information for all periods includes the effects of acquisition accounting, including amortization charges from acquired intangible assets, interest expense on borrowings in connection with the acquisition, and the related tax effects as though the acquisition of JADAK had been consummated as of the beginning of 2013. These pro forma results exclude the impact of transaction costs included in the historical results and the related tax effects. The pro forma financial information is presented for comparative purposes only and is not necessarily indicative of the results of operations that actually would have been achieved if the acquisition had taken place at the beginning of 2013.

NDS

On January 15, 2013, the Company acquired 100% of the outstanding membership interests of NDS Surgical Imaging, LLC and 100% of the outstanding stock of NDS Surgical Imaging KK (collectively, “NDS”) for $80.8 million in cash consideration, net of working capital adjustments. In addition, a total of $5.4 million was held in escrow after the payment of closing working capital as indemnification for certain representations and warranty claims against the seller until the expiration of the escrow arrangement in July 2014. In September 2014, the Company received the full remaining amount held in escrow following the Company’s claims for breach of certain terms of the January 15, 2013 Securities Purchase Agreement for the acquisition of NDS. The escrow recovery was accounted for as a reduction to goodwill as the $5.4 million payment was clearly and directly related to the acquisition price. The escrow recovery resulted in a final adjusted NDS purchase price of $75.4 million.

The allocation of the purchase price is based upon a valuation of assets and liabilities acquired. Assets acquired and liabilities assumed have been recorded at their estimated fair values as of the acquisition date. The fair values of intangible assets were based on valuations using an income approach, with estimates and assumptions provided by management of NDS and the Company. The excess of the purchase price over the tangible assets, identifiable intangible assets and assumed liabilities was recorded as goodwill.

The total final purchase price allocation for the NDS acquisition was as follows (in thousands):

	Amount
Accounts receivable	$	10,327
Inventory		14,144
Property and equipment		2,426
Intangible assets		37,817
Goodwill		21,160
Other assets		1,782
Total assets acquired		87,656
Accounts payable		4,768
Other liabilities		7,149
Deferred tax liabilities		384
Total liabilities assumed		12,301
Total purchase price	$	75,355

59

GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

The fair value of NDS intangible assets is comprised of the following (in thousands):

			Weighted Average
	Estimated Fair		Amortization
	Value		Period
Customer relationships	$	22,294	20 years
Developed technology		6,689	10 years
Trademarks and trade names		7,565	20 years
Backlog		1,269	1 year
Total	$	37,817

NDS contributed sales of $68.4 million and loss from continuing operations before income taxes of $3.4 million for the year ended December 31, 2013.

Acquisition-related Costs

The Company recognized acquisition costs of $0.7 million, $1.5 million and $0.7 million in the years ended December 31, 2014, 2013 and 2012, respectively, related to the acquisitions of JADAK and NDS. These amounts were included in restructuring and acquisition related costs.

4. Discontinued Operations

Beginning in 2011, the Company initiated a strategic review of its businesses to focus its priorities and investments, while simplifying and streamlining its business model. In June 2012, the Company committed to a plan for the sale of the Semiconductor Systems operating segment, sold under the GSI brand name, and Laser Systems product lines, sold under the Control Laser and Baublys brand names. The Company began accounting for these businesses as discontinued operations beginning in the second quarter of 2012.

In the first quarter of 2014, the Company’s Board of Directors committed to a plan to sell the Scientific Lasers business, which was included in the Company’s Laser Products segment. The Company determined that the asset held-for-sale criteria were satisfied and began to account for the Scientific Lasers business as discontinued operations in the first quarter of 2014. As a result, prior period information related to the business has been reclassified into discontinued operations to conform to current period presentation. The discontinued business has been excluded from the following Notes to Consolidated Financial Statements unless otherwise stated.

Laser Systems

In October 2012, the Company sold certain assets and liabilities of the Laser Systems business for $7.0 million to Hans Laser, subject to working capital adjustments, and recorded a $2.3 million gain, net of tax, in the consolidated statement of operations during the year ended December 31, 2012. In September 2013, the Company paid $0.4 million to Hans Laser as the final net working capital adjustment which resulted in an additional loss of $0.2 million, net of tax.

Semiconductor Systems

In May 2013, the Company consummated the sale of certain assets and liabilities of the Semiconductor Systems business to Electro Scientific Industries, Inc. (“ESI”) for $9.7 million in cash, including working capital adjustments of $1.7 million received in September 2013. The Company recognized a $0.4 million loss on the sale, net of tax, in the consolidated statements of operations during the year ended December 31, 2013.

Scientific Lasers

In July 2014, the Company completed the sale of certain assets and liabilities of the Scientific Lasers business operating under the Continuum brand name for approximately $6.5 million, net of working capital adjustments, and recognized a $1.7 million loss, net of tax, in the consolidated statement of operations during the year ended December 31, 2014. In accordance with the purchase and sales agreement, $1.5 million of the sales proceeds is held in escrow until January 2016. The Company has recorded the $1.5 million escrow in other long term assets on the consolidated balance sheet.

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GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

The major components of the assets and liabilities of discontinued operations as of December 31, 2014 and 2013, respectively, are as follows (in thousands):

	2014		2013
Accounts receivable, net	$	95	$	5,361
Inventories		161		8,454
Other assets		375		4,021
Assets of discontinued operations	$	631	$	17,836
Accounts payable	$	16	$	2,393
Accrued expenses and other current liabilities		74		2,332
Other liabilities		234		1,418
Liabilities of discontinued operations	$	324	$	6,143

Assets and liabilities of discontinued operations as of December 31, 2014 primarily include the balances of the India JV.

The following table presents the operating results which are reported as discontinued operations in the Company’s consolidated statements of operations (in thousands):

	Year Ended December 31,
	2014			2013			2012
Sales from discontinued operations	$	10,514		$	33,792		$	72,356
Loss from discontinued operations, before income tax	$	(8,059	)	$	(3,361	)	$	(10,209	)
Loss from discontinued operations, net of tax	$	(5,607	)	$	(2,054	)	$	(10,974	)
Gain (loss) on disposal of discontinued operations, net of tax	$	(1,726	)	$	(592	)	$	2,255

The loss from discontinued operations during the year ended December 31, 2014 includes a $3.0 million fair value write-down of the Scientific Lasers business to its fair value less costs to sell and a $0.5 million fair value write-down of the India JV. The Company is currently in negotiations with the joint venture partner to dissolve the joint venture.

In 2012, the Company recorded an inventory provision of $1.9 million related to the Semiconductor Systems business. This provision was included in income (loss) from discontinued operations, net of tax, in the consolidated statement of operations. The increase in the inventory provision was caused by changes in industry trends in the memory repair market, which resulted in lower expected future demand for the Company’s memory repair products.

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GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

5. Accumulated Other Comprehensive Income (Loss)

Comprehensive income (loss) is defined as net income or loss and other changes in stockholders’ equity that do not represent transactions with stockholders or in the Company’s stock. Changes in accumulated other comprehensive income (loss) is as follows (in thousands):

	Total accumulated
	other			Foreign currency
	comprehensive			translation			Pension
	income (loss)			adjustment			liability
Balance at December 31, 2011	$	(5,024	)	$	2,809		$	(7,833	)
Other comprehensive loss		(6,973	)		(3,020	)		(3,953	)
Amounts reclassified from other comprehensive income (loss) (1)		2,248			1,510			738
Balance at December 31, 2012		(9,749	)		1,299			(11,048	)
Other comprehensive income		2,686			54			2,632
Amounts reclassified from other comprehensive income (loss) (1)		721			—			721
Balance at December 31, 2013	$	(6,342	)	$	1,353		$	(7,695	)
Other comprehensive loss		(10,488	)		(6,968	)		(3,520	)
Amounts reclassified from other comprehensive income (loss) (1)		374			—			374
Balance at December 31, 2014	$	(16,456	)	$	(5,615	)	$	(10,841	)

(1) The amounts reclassified from other comprehensive income (loss) were included in selling, general and administrative expenses in the consolidated statements of operations.

6. Goodwill, Intangible Assets and Impairment Charges

Impairment Charges

The most recent annual goodwill and indefinite-lived intangible asset impairment test was performed as of the beginning of the second quarter of 2014, noting no impairment. Implied fair values of all reporting units exceeded their carrying values by at least 10%. For the annual impairment test performed during the second quarter of 2014, the Company forecasted growth in the NDS business due to expected new product launches in 2014, higher demand for NDS’s current products, and an expectation that all products of the NDS business would continue to be sold.

During the fourth quarter of 2014, the Company completed its annual operating plan for the NDS business following the MEDICA and RSNA tradeshows, two main tradeshows for the NDS business. Expectations for sales and operating profit were lowered significantly versus prior forecasts. The lower expectations for sales and operating profit were driven by a strategic decision to discontinue certain NDS products, lack of seasonal uptick during the fourth quarter of 2014 attributable to slower than expected hospital capital expenditures, and lower than expected customer orders from the fourth quarter tradeshows.

In considering the above mentioned factors, the Company determined that a triggering event occurred in the fourth quarter of 2014 and that an interim impairment review of the goodwill and intangible assets related to the NDS reporting unit was necessary.  First, the Company performed a long-lived asset recoverability test in accordance with ASC 360-10-35-15, “Impairment or Disposal of Long-Lived Assets”, on the lowest level of identifiable cash flows, which was determined to be the NDS business.  The recoverability test compared the carrying value of the NDS business to the undiscounted cash flows. As a result of this recoverability test, the Company determined that the assets were not recoverable.  The Company then determined the fair value of the NDS business using a discounted cash flow methodology, which resulted in a $21.8 million intangible assets impairment charge in the fourth quarter of 2014. The impairment charge is reflected in the operating results of the Medical Technologies segment.  

Subsequent to impairing the NDS business’s long-lived assets, step one of the goodwill impairment analysis was performed.  As the carrying value of the NDS reporting unit exceeded its implied fair value, the Company performed the second step of the goodwill impairment test, comparing the implied fair value of the reporting unit’s goodwill with its carrying amount to measure the impairment loss. The implied fair value of goodwill is determined in the same manner as the amount of goodwill recognized in a business combination, whereby the estimated fair value of the reporting unit is allocated to all of the assets and liabilities of that reporting unit as if the reporting unit had been acquired in a business combination and the fair value of the reporting unit was the

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GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

purchase price paid. If the carrying amount of the reporting unit’s goodwill exceeds its implied fair value, an impairment loss is recognized in an amount equal to that excess. After completing the second step of the goodwill impairment test, the Company recorded a $19.6 million goodwill impairment charge in the fourth quarter of 2014. The impairment charge is reflected in the operating results of the Medical Technologies segment.    

The results of the impairment review as of December 31, 2014 are summarized in the following table (in thousands):

	Pre-Impairment Net Carrying Value		Impairment Charge			Post-Impairment Net Carrying Value
Goodwill	$	110,321	$	(19,575	)	$	90,746
Intangible assets		89,109		(21,867	)		67,242
Total	$	199,430	$	(41,442	)	$	157,988

The Company did not have any goodwill or indefinite-lived intangible asset impairment charges during the years ended December 31, 2013 and 2012.

Goodwill

Goodwill is recorded when the consideration for a business combination exceeds the fair value of net tangible and identifiable intangible assets acquired.

The following table summarizes changes in goodwill during the year ended December 31, 2014 (in thousands):

	December 31, 2014
Balance at beginning of year	$	71,156
Goodwill acquired from the JADAK acquisition		44,584
Recovery of escrow from the NDS acquisition		(5,419	)
NDS goodwill impairment		(19,575	)
Balance at end of year	$	90,746

Goodwill acquired from the JADAK acquisition, the NDS impairment and the recovery of escrow from the NDS acquisition is reflected in the Medical Technologies segment. Goodwill by reportable segment as of December 31, 2014 is as follows (in thousands):

	Reportable Segment
	Laser Products			Medical Technologies			Precision Motion			Total
Goodwill	$	132,954		$	82,730		$	26,291		$	241,975
Accumulated impairment of goodwill		(102,461	)		(31,722	)		(17,046	)		(151,229	)
Total	$	30,493		$	51,008		$	9,245		$	90,746

Goodwill by reportable segment as of December 31, 2013 is as follows (in thousands):

	Reportable Segment
	Laser Products			Medical Technologies			Precision Motion			Total
Goodwill	$	132,954		$	43,565		$	26,291		$	202,810
Accumulated impairment of goodwill		(102,461	)		(12,147	)		(17,046	)		(131,654	)
Total	$	30,493		$	31,418		$	9,245		$	71,156

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GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

Intangible Assets

Intangible assets as of December 31, 2014 and 2013, respectively, are summarized as follows (in thousands):

	December 31, 2014
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Remaining Life (Years)
Amortizable intangible assets:
Patents and acquired technologies	$	78,253	$	(62,010	)	$	16,243		7.5
Customer relationships		63,029		(31,531	)		31,498		14.7
Customer backlog		1,810		(1,641	)		169		0.2
Non-compete covenant		1,830		(366	)		1,464		4.2
Trademarks and trade names		10,205		(5,364	)		4,841		9.8
Amortizable intangible assets		155,127		(100,912	)		54,215		11.8
Non-amortizable intangible assets:
Trade names		13,027		—			13,027
Totals	$	168,154	$	(100,912	)	$	67,242

	December 31, 2013
	GrossCarrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Remaining Life (Years)
Amortizable intangible assets:
Patents and acquired technologies	$	68,500	$	(56,327	)	$	12,173		5.3
Customer relationships		55,585		(24,340	)		31,245		13.9
Customer backlog		1,269		(1,269	)		—		—
Trademarks and trade names		13,378		(4,530	)		8,848		16.4
Amortizable intangible assets		138,732		(86,466	)		52,266		12.3
Non-amortizable intangible assets:
Trade names		13,027		—			13,027
Totals	$	151,759	$	(86,466	)	$	65,293

All definite-lived intangible assets are amortized either on a straight-line basis or an economic benefit basis over their remaining life. Amortization expense for customer relationships and definite-lived trademarks, trade names and other intangibles is included in operating expenses in the accompanying consolidated statements of operations. Amortization expense for patents and acquired technologies is included in cost of goods sold in the accompanying consolidated statements of operations. Amortization expense is as follows (in thousands):

	Year Ended December 31,
	2014		2013		2012
Amortization expense – cost of sales	$	6,143	$	5,280	$	3,165
Amortization expense – operating expenses		10,262		7,270		2,650
Total amortization expense	$	16,405	$	12,550	$	5,815

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GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

Estimated amortization expense for each of the five succeeding years and thereafter as of December 31, 2014 is as follows (in thousands):

Year Ending December 31,	Cost of Sales		Operating Expenses		Total
2015	$	4,255	$	6,532	$	10,787
2016		3,143		6,695		9,838
2017		2,868		6,062		8,930
2018		1,434		5,511		6,945
2019		1,207		3,734		4,941
Thereafter		3,336		9,438		12,774
Total	$	16,243	$	37,972	$	54,215

7. Fair Value Measurements

ASC 820, “Fair Value Measurement,” establishes a fair value hierarchy based on three levels of inputs, of which the first two are considered observable and the third is considered unobservable:

Level 1: Quoted prices for identical assets or liabilities in active markets which the Company can access.

Level 2: Observable inputs other than those described in Level 1.

Level 3: Unobservable inputs.

The Company’s cash equivalents are investments in money market accounts, which represent the only asset the Company measures at fair value on a recurring basis. The Company determines the fair value of our cash equivalents using a market approach based on quoted prices in active markets. The fair values of cash, accounts receivable, income taxes receivable, accounts payable, income taxes payable and accrued expenses and other current liabilities approximate their carrying values because of their short-term nature.

The following table summarizes the fair values of our financial assets as of December 31, 2014 (in thousands):

			Quoted Prices in				Significant Other
			Active Markets for		Significant Other		Unobservable
			Identical Assets		Observable Inputs		Inputs
	Fair Value		(Level 1)		(Level 2)		(Level 3)
Assets
Cash equivalents	$	2,255	$	2,255	$	—	$	—

The following table summarizes the fair values of our financial assets as of December 31, 2013 (in thousands):

			Quoted Prices in				Significant Other
			Active Markets for		Significant Other		Unobservable
			Identical Assets		Observable Inputs		Inputs
	Fair Value		(Level 1)		(Level 2)		(Level 3)
Assets
Cash equivalents	$	3,078	$	3,078	$	—	$	—

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GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

Except for assets and liabilities acquired from the JADAK acquisition, as disclosed in Note 3 and the NDS impairment, as discussed in Note 6, there were no assets and liabilities that were measured at fair value on a non-recurring basis during 2014. The following table summarizes assets and liabilities that were measured at fair value on a non-recurring basis during 2012 (in thousands):

	Quoted Prices in		Significant		Significant
	Active Markets		Other		Other
	for Identical		Observable		Unobservable
	Assets		Inputs		Inputs		Total
	(Level 1)		(Level 2)		(Level 3)		Losses
Facility impairment	$	—	$	—	$	856	$	856

During the year ended December 31, 2012, the Company recorded non-recurring fair value measurements related to the impairment of our Orlando, Florida facility. As part of our periodic assessment of assets of discontinued operations, the Company recorded an impairment in the third quarter of 2012 on the facility to reduce the book value to the estimated fair value of the building, less costs to sell. The estimated fair value was determined using a combination of the income approach and comparable sales approach of similar properties within the Orlando, Florida area using information from third party real estate agents.

See Note 10 for discussion of the estimated fair value of the Company’s outstanding debt and Note 12 for discussion of the estimated fair value of the Company’s pension plan assets.

8. Earnings (Loss) per Share

Basic earnings (loss) per common share is computed by dividing net income (loss) by the weighted average number of common shares outstanding during the year. For diluted earnings (loss) per common share, the denominator also includes the dilutive effect of outstanding deferred stock units and restricted stock units determined using the treasury stock method. Dilutive effects of contingently issuable shares are included in the weighted average dilutive share calculation when the contingencies have been resolved. For years in which net losses are generated, the dilutive potential common shares are excluded from the calculation of diluted earnings per share as the effect would be anti-dilutive.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

The following table sets forth the computation of basic and diluted earnings (loss) per share (in thousands, except per share amounts):

	Year Ended December 31,
	2014			2013			2012
Numerators:
Income (loss) from continuing operations	$	(16,909	)	$	9,977		$	28,297
Consolidated loss from discontinued operations		(7,333	)		(2,646	)		(8,719	)
Less: income attributable to noncontrolling interest		(10	)		(22	)		(40	)
Loss from discontinued operations attributable to GSI Group Inc.		(7,343	)		(2,668	)		(8,759	)
Net income (loss) attributable to GSI Group Inc.	$	(24,252	)	$	7,309		$	19,538
Denominators:
Weighted average common shares outstanding— basic		34,352			34,073			33,775
Dilutive potential common shares (1)		—			323			161
Weighted average common shares outstanding— diluted		34,352			34,396			33,936
Antidilutive common shares excluded from above		439			246			244
Basic Earnings (Loss) per Common Share:
From continuing operations	$	(0.49	)	$	0.29		$	0.84
From discontinued operations	$	(0.21	)	$	(0.08	)	$	(0.26	)
Basic earnings per share attributable to GSI Group Inc.	$	(0.70	)	$	0.21		$	0.58
Diluted Earnings (Loss) per Common Share:
From continuing operations	$	(0.49	)	$	0.29		$	0.84
From discontinued operations	$	(0.21	)	$	(0.08	)	$	(0.26	)
Diluted earnings per share attributable to GSI Group Inc.	$	(0.70	)	$	0.21		$	0.58

(1) Due to the Company’s net loss position for the year ended December 31, 2014, all potentially dilutive shares are excluded as their effect would have been anti-dilutive.

Common Stock Repurchases

In October 2013, the Company’s Board of Directors authorized a share repurchase plan under which the Company may repurchase outstanding shares of the Company’s common stock up to an aggregate amount of $10.0 million. The shares may be repurchased from time to time, at the Company’s discretion, based on ongoing assessment of the capital needs of the business, the market price of the Company’s common stock, and general market conditions. Shares may also be repurchased through an accelerated stock purchase agreement, on the open market or in privately negotiated transactions in accordance with applicable federal securities laws. Repurchases may be made under certain SEC regulations, which would permit common stock to be purchased when the Company would otherwise be prohibited from doing so under insider trading laws. The share repurchase plan does not obligate the Company to acquire any particular amount of common stock. No time limit was set for the completion of the share repurchase program, and the program may be suspended or discontinued at any time. After the adoption of the share repurchase plan, the Company repurchased 50 thousand shares of its common stock for an aggregate purchase price of $0.5 million at an average price of $10.49 per share in December 2013. No repurchases occurred during the year ended December 31, 2014.

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AS OF DECEMBER 31, 2014

9. Supplementary Balance Sheet Information

The following tables provide the details of selected balance sheet items as of the dates indicated (in thousands):

Inventories

	December 31,
	2014		2013
Raw materials	$	38,934	$	34,749
Work-in-process		9,899		9,744
Finished goods		11,945		10,682
Demo and consigned inventory		2,165		3,115
Total inventories	$	62,943	$	58,290

Property, Plant and Equipment, net

	December 31,
	2014			2013
Cost:
Land, buildings and improvements	$	46,222		$	37,048
Machinery and equipment		50,487			48,107
Total cost		96,709			85,155
Accumulated depreciation		(56,621	)		(53,852	)
Property, plant and equipment, net	$	40,088		$	31,303

In 2014, the Company capitalized $10.4 million of assets which met the capital lease criteria of ASC 840-30, “Leases—Capital Lease”. The assets acquired under the capital lease are included in land, buildings and improvements and machinery and equipment and the related amortization expense is included in depreciation expense. The Company also capitalized software development costs of $0.2 million, $0.2 million and $0.6 million during the years ended 2014, 2013 and 2012, respectively, based on the guidance in ASC 350-40, “Internal-Use Software”. The following table summarizes depreciation expense on property, plant and equipment, including demo units and assets under capital leases (in thousands):

	Year Ended December 31,
	2014		2013		2012
Depreciation expense	$	8,016	$	7,400	$	6,868

The following table summarizes total accumulated depreciation on assets under capital leases as of the dates indicated (in thousands):

	December 31,
	2014		2013		2012
Accumulated depreciation on assets under capital leases	$	2,741	$	1,653	$	861

Accrued Expenses and Other Current Liabilities

The following table summarizes accrued expenses and other current liabilities as of the dates indicated (in thousands):

	December 31,
	2014		2013
Accrued compensation and benefits	$	7,741	$	8,624
Accrued warranty		3,044		3,315
Other		8,616		10,349
Total	$	19,401	$	22,288

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AS OF DECEMBER 31, 2014

Accrued Warranty

The following table summarizes accrued warranty activities for the periods indicated (in thousands):

	Year Ended December 31,
	2014			2013
Balance at beginning of year	$	3,315		$	2,204
Provision charged to cost of sales		1,684			1,891
Acquisition related warranty accrual		90			998
Use of provision		(2,003	)		(1,804	)
Foreign currency exchange rate changes		(42	)		26
Balance at end of year	$	3,044		$	3,315

Other Long Term Liabilities

The following table summarizes other long term liabilities as of the dates indicated (in thousands):

	December 31,
	2014		2013
Capital lease obligations	$	9,507	$	—
Accrued pension liabilities		6,037		2,322
Other		3,275		2,706
Total	$	18,819	$	5,028

10. Debt

Debt consisted of the following (in thousands):

	December 31,
	2014		2013
Senior Credit Facilities – term loan	$	7,500	$	7,500
Total current portion of long-term debt	$	7,500	$	7,500
Senior Credit Facilities – term loan	$	27,500	$	35,000
Senior Credit Facilities – revolving credit facility		80,000		29,000
Total long-term debt	$	107,500	$	64,000
Total Senior Credit Facilities	$	115,000	$	71,500

Senior Credit Facilities

On December 27, 2012, the Company entered into an amended and restated senior secured credit agreement (the “Amended and Restated Credit Agreement”) with new and existing lenders for an aggregate credit facility of $125.0 million, consisting of a $50.0 million, 5-year, term loan facility and a $75.0 million, 5-year, revolving credit facility (collectively, the “Senior Credit Facilities”). The Senior Credit Facilities mature in December 2017. The Amended and Restated Credit Agreement amended and restated the credit agreement dated October 19, 2011 (the “Original Credit Agreement”). The terms and conditions of the Amended and Restated Credit Agreement did not substantially change from the Original Credit Agreement.

The borrowings outstanding under the credit facility bear interest at rates based on (a) the Eurodollar Rate, as defined in the Amended and Restated Credit Agreement, plus a rate ranging from 2.00% to 3.00% per annum or (b) the Base Rate, as defined in the Amended and Restated Credit Agreement, plus a rate ranging from 1.00% to 2.00% per annum, in each case based upon the Company’s consolidated leverage ratio. The Company is also required to pay a commitment fee on unused commitments under the revolving credit facility ranging between 0.250% and 0.625% per annum, which is based upon the Company’s consolidated leverage

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AS OF DECEMBER 31, 2014

ratio. As of December 31, 2014, the Company had $95.0 million available to be drawn under the revolving credit facility. Inclusive of commitment fees, the interest rate for the credit facility was approximately 2.9% as of December 31, 2014.

The Amended and Restated Credit Agreement contains various customary representations, warranties and covenants applicable to the Company and its subsidiaries, including, (i) covenants regarding maximum consolidated leverage ratio and minimum consolidated fixed charge coverage ratio; (ii) limitations on restricted payments, including dividend payments and stock repurchases, provided that the Company may repurchase their equity interests, so long as immediately after giving effect to the repurchase, the Company’s consolidated leverage ratio is no more than 2.25:1.00, and the Company has unrestricted cash plus amounts available for borrowing under the Senior Credit Facilities of at least $25.0 million immediately after giving effect on the repurchase; (iii) limitations on fundamental changes involving the Company; (iv) limitations on the disposition of assets; and (v) limitations on indebtedness, investments, and liens.

The Company’s obligations under the Senior Credit Facilities are secured on a senior basis by a lien on substantially all of the assets of the Company and its material United States (“U.S.”) and United Kingdom (“U.K.”) subsidiaries and guaranteed by the Company and its material U.S. and U.K. subsidiaries. The Amended and Restated Credit Agreement also contains customary events of default.

The Company entered into three amendments to the Amended and Restated Credit Agreement during 2013 and one amendment during 2014. The first and second amendments resulted in immaterial modifications. On September 13, 2013, the Company entered into a third amendment (the “Third Amendment”) which increased the accordion feature provided in the Amended and Restated Agreement from uncommitted $50.0 million to uncommitted $100.0 million in aggregate of the revolving credit facility and term loan. On February 10, 2014, the Company entered into a fourth amendment (the “Fourth Amendment”). The Fourth Amendment increased the revolving credit facility commitment under the Amended and Restated Credit Agreement by $100 million from $75 million to $175 million and reset the accordion feature to $100 million for future expansion. Additionally, the Fourth Amendment increased the maximum permitted consolidated leverage ratio from 2.75 to 3.00, and increased the maximum consolidated leverage ratio for permitted acquisitions and stock repurchases from 2.25 to 2.50. The Company was in compliance with these debt covenants as of December 31, 2014.

The principal on the Company’s outstanding term loan matures as follows (in thousands):

	Term Loan
2015	$	7,500
2016		7,500
2017		20,000
Total debt repayments	$	35,000

Subject to certain exceptions, the Company will be required to prepay outstanding loans under the Amended and Restated Credit Agreement with the net proceeds of certain asset dispositions and incurrences of certain debt. The Company may voluntarily prepay loans or reduce commitments under the Senior Credit Facilities, in whole or in part, without premium or penalty, subject to certain minimum principal amounts.

Guarantees

Each Guarantor, as defined in the Amended and Restated Credit Agreement, jointly and severally, unconditionally guarantees the due and punctual payment of the principal, interest and fees on the Senior Credit Facilities, when due and payable, whether at maturity, by required prepayment, by acceleration or otherwise. In addition, Guarantors guarantee the due and punctual payment, fees and interest on the overdue principal of the Senior Credit Facilities and the due and punctual performance of all obligations of the Company in accordance with the terms of the Amended and Restated Credit Agreement. Furthermore, each Guarantor, jointly and severally, unconditionally guarantees that in the event of any extension, renewal, amendment, refinancing or modification of any of the Senior Credit Facilities or any of such other Obligations, as defined in the Amended and Restated Credit Agreement, amounts due will be promptly paid in full when due or performed in accordance with the terms of the extension or renewal, at stated maturity, by acceleration or otherwise.

The obligations of each Guarantor are limited to the maximum amount, after giving effect to all other contingent and fixed liabilities or any collections from or payments made by or on behalf of any other Guarantor. Each Guarantor that makes a payment or

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AS OF DECEMBER 31, 2014

distribution under a Guarantee is entitled to a contribution from each other Guarantor of its Pro Rata Share, as defined in the Amended and Restated Credit Agreement, based on the adjusted net assets of each Guarantor. The Guarantees will continue to be effective or be reinstated, as the case may be, if at any time any payment of any of the obligations of the Guarantors is rescinded or must otherwise be returned upon the insolvency, bankruptcy or reorganization of the Company, a Guarantor or otherwise, all as though such payment had not been made.

Each Guarantor may be released from its obligations under its respective Guarantee and its obligations under the Amended and Restated Credit Agreement upon the occurrence of certain events, including, but not limited to: (i) the Guarantor ceases to be a subsidiary; and (ii) payment in full of the principal, accrued and unpaid interest on the Senior Credit Facilities and all other obligations.

As of December 31, 2014, the maximum potential amount of future payments the Guarantors could be required to make under the Guarantee is the principal amount of the Senior Credit Facilities plus all unpaid but accrued interest thereon. However, as of December 31, 2014, the Guarantors are not expected to be required to perform under the Guarantee.

Mortgages

In connection with the Amended and Restated Credit Agreement and as required thereby, Synrad, Inc. (“Synrad”), Photo Research, Inc. (“Photo Research”) and Excel Technology, Inc. (“Excel”), each a subsidiary of the Company, continues to be subject to an Open-End Deed of Trust, Assignment of Leases and Rents, Security Agreement and Fixture Filing, dated as of October 19, 2011, in favor of or for the benefit of the Trustee, wherein Synrad, Photo Research and Excel mortgaged, granted, bargained, assigned, sold and conveyed their respective interest in the property located in Mukilteo, Washington, Chatsworth, California and Orlando, Florida, respectively, to secure (a) the payment of all of the obligations of the Borrower and the Guarantors under the Amended and Restated Credit Agreement, the respective mortgages and the other Security Documents (as defined in the respective mortgage), and (b) the performance of all terms, covenants, conditions, provisions, agreements and liabilities contained in the credit agreement.

Fair Value of Debt

As of December 31, 2014 and 2013, the outstanding balance of the Company’s debt approximated fair value based on current rates available to the Company for debt of the same maturity.

11. Share-Based Compensation

Capital Stock

The authorized capital of the Company consists of an unlimited number of common shares without nominal or par value. Holders of common shares are entitled to one vote per share. Holders of common shares are entitled to receive dividends, if and when declared by the Board of Directors, and to share ratably in its assets legally available for distribution to the stockholders in the event of liquidation. Holders of common shares have no redemption or conversion rights.

2010 Incentive Award Plan

In November 2010, the Company’s shareholders approved the 2010 Incentive Award Plan (the “2010 Incentive Plan”), under which the Company may grant share-based compensation awards to employees, consultants and directors. In May 2014, the Company’s shareholders approved the amended and restated 2010 Incentive Award Plan (the “Amended and Restated 2010 Incentive Plan”). The maximum number of shares which can be issued pursuant to the Amended and Restated 2010 Incentive Plan is 4,398,613, subject to adjustment as set forth in the Amended and Restated 2010 Incentive Plan. The Amended and Restated 2010 Incentive Plan provides for the grant of incentive stock options, non-qualified stock options, restricted stock, restricted stock units, stock appreciation rights, deferred stock, deferred stock units, dividends equivalents, performance awards and stock payments (collectively referred to as “Awards”) to employees, consultants and directors. The Amended and Restated 2010 Incentive Plan allows the Company to continue to grant awards intended to constitute “performance-based compensation” for purposes of Section 162(m) of the Internal Revenue Code of 1986, as amended, and includes certain provisions that reflect good corporate governance practices. The Amended and Restated 2010 Incentive Award Plan provides for specific limits on the number of shares that may be subject to different types of Awards and the amount of cash that can be paid with respect to different types of Awards. The Amended and Restated 2010 Incentive Plan will expire and no further Awards may be granted after April 9, 2024, As of December 31, 2014, there are 2,284,553 shares available for future awards under the Amended and Restated 2010 Incentive Plan.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

Restricted stock units represent the right to receive common shares or the fair market value of such shares in cash as determined by the administrator of the Amended and Restated 2010 Incentive Plan at a specified date in the future, subject to forfeiture of such right. The purchase price for restricted stock units, if any, will be determined by the administrator of the Amended and Restated 2010 Incentive Plan on an award-by-award basis. Deferred stock units entitle the recipient thereof to receive one share of common stock on the date such deferred stock unit becomes vested and other conditions are removed or expire, if applicable or upon a specified settlement date thereafter. Deferred stock units are typically awarded without payment of consideration.

Shares subject to Awards that have expired, forfeited or settled in cash, or repurchased by the Company at the same price paid by the awardee may be added back to the number of shares available for grant under the Amended and Restated 2010 Incentive Plan and may be granted as new Awards. Shares that are used to pay the exercise price for an option, shares withheld to pay taxes, with respect to an option or stock appreciation rights, shares subject to a stock appreciation right that are not issued in connection with the stock settlement of the stock appreciation right on exercise thereof, and shares purchased on the open market with the cash proceeds from the exercise of options will not be added back to the number of shares available for grant under the Amended and Restated 2010 Incentive Plan. Shares issued to satisfy Awards under the Amended and Restated 2010 Incentive Plan may be previously authorized but unissued shares, treasury shares or shares bought on the open market.

The table below summarizes activities relating to restricted stock units issued and outstanding under the 2010 Incentive Plan during year ended December 31, 2014:

	Restricted Stock Units (In thousands)			Weighted Average Grant Date Fair Value		Weighted Average Remaining Vesting Period in Years	Aggregate Intrinsic Value (1) (In thousands)
Unvested at December 31, 2013		809		$	10.20
Granted		338		$	12.26
Vested		(361	)	$	10.79
Forfeited		(37	)	$	11.06
Unvested at December 31, 2014		749		$	10.80	1.82 years	$	11,019
Expected to vest as of December 31, 2014		734		$	10.80	1.82 years	$	10,797

(1) The aggregate intrinsic value is calculated based on the fair value of $14.72 per share of the Company’s common stock on December 31, 2014 due to the fact that the restricted stock units carry a $0 purchase price.

The total fair value of restricted stock units that vested in 2014, based on the market price of the underlying stock on the day of vesting, was $4.5 million.

Other Issuances

On September 2, 2010, the Company granted 83,337 deferred stock units to the members of its Board of Directors at a weighted average grant date fair value of $6.66 per share. The deferred stock units were issued pursuant to standalone award agreements that are independent of an equity incentive plan. These transactions were exempt from registration under the Securities Act of 1933 pursuant to Section 4(2) of such act as transactions not involving a public offering. Each deferred stock unit represents the right to receive one common share of the Company on the date of termination of the holder’s service with the Company’s Board of Directors. The deferred stock units were fully vested and nonforfeitable on the date of grant.

In connection with the JADAK acquisition on March 14, 2014, the Company acquired 100% of the outstanding stock of JADAK. In addition to the total purchase price, the Company granted restricted stock units in an aggregate of 180,000 shares to the former owner-managers of JADAK as employment inducement awards. These restricted stock units are performance-based awards and will vest after two years if certain financial targets and service conditions have been achieved.

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AS OF DECEMBER 31, 2014

Share-Based Compensation Expense

The table below summarizes share-based compensation expense recorded in income from continuing operations (in thousands):

	Year Ended December 31,
	2014		2013		2012
Selling, general and administrative	$	3,967	$	5,144	$	4,339
Research and development and engineering		196		180		112
Cost of sales		166		118		83
Restructuring and acquisition related costs		322		125		51
Total share-based compensation expense	$	4,651	$	5,567	$	4,585

The expense recorded during each of the years ended December 31, 2014, 2013 and 2012 included $0.5 million, $0.5 million and $0.6 million, respectively, related to deferred stock units granted to the members of the Company’s Board of Directors pursuant to the Company’s Amended and Restated 2010 Incentive Plan. The expense associated with the respective deferred stock units was recognized in full on the respective date of grant, as the deferred stock units were fully vested and nonforfeitable upon grant.

The Company’s restricted stock unit awards have generally been issued with a three-year vesting period and vest based solely on service conditions. Accordingly, the Company generally recognizes compensation expense on a straight-line basis over the requisite service period. The Company reduces the compensation expense by an estimated forfeiture rate which is based on anticipated forfeitures and actual experience.

As of December 31, 2014, the Company’s outstanding equity awards for which compensation expense will be recognized in the future consist of time-based restricted stock units granted under the Amended and Restated 2010 Incentive Plan and the JADAK inducement awards. The Company expects to record aggregate share-based compensation expense of $5.8 million, net of an estimate of forfeitures, subsequent to December 31, 2014, over a weighted average period of 1.8 years, for all outstanding equity awards.

12. Employee Benefit Plans

Defined Benefit Plans

The Company maintains a defined benefit pension plan in the United Kingdom (the “U.K. Plan”). In 1997, membership to the U.K. Plan was closed. In 2003, the Company was allowed to stop accruing additional benefits to the participants. Benefits under the U.K. Plan were based on the employees’ years of service and compensation as of 2003.

The Company also maintains a tax qualified pension plan in Japan (the “Japan Plan”) that covers certain of the Company’s Japanese employees. Benefits are based on years of service and compensation at retirement. Employees with less than twenty years of service to the Company receive a lump sum benefit payout. Employees with twenty or more years of service to the Company receive a benefit that is guaranteed for a certain number of years. Participants may, under certain circumstances, receive a benefit upon termination of employment. In December 2014, the Company amended the Japan Plan, which will be terminated in the first quarter of 2015. Upon termination, the plan assets will be transferred to each employee’s deferred contribution plan account. The accrued retirement allowance amount calculated by Japanese retirement benefit rules on a voluntary retirement basis as of March 1, 2015 (excess of plan assets) will be transferred over 4 years to each employee’s new defined contribution plan account.

Pension costs reflected in the accompanying consolidated statements of operations are based on a projected benefit method of valuation. The funded status of pension plan liabilities are included in other current and other long term liabilities in the accompanying consolidated balance sheets. The current and long term portions of pension plan liabilities are $0.1 million and $6.0 million, respectively, for the year ended December 31, 2014. The Company continues to fund each plan in sufficient amounts to meet current benefits as well as to fund a portion of future benefits as permitted by regulatory authorities.

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NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

The net periodic pension cost for the U.K. Plan and the Japan Plan included the following components (in thousands):

	U.K. Plan									Japan Plan
	2014			2013			2012			2014			2013			2012
Components of the net periodic pension cost:
Service cost	$	—		$	—		$	—		$	101		$	99		$	121
Interest cost		1,589			1,403			1,359			13			10			15
Expected return on plan assets		(1,958	)		(1,595	)		(1,270	)		(6	)		(7	)		—
Amortization of the unrecognized transition    obligation		—			—			—			29			14			37
Amortization of prior service cost		—			—			—			18			12			3
Amortization of actuarial losses		374			668			392			—			—			—
Other		—			—			—			18			—			—
Net periodic pension cost	$	5		$	476		$	481		$	173		$	128		$	176

The actuarial assumptions used to compute the net periodic pension cost for the years ended December 31, 2014, 2013 and 2012, respectively, for the U.K. Plan and the Japan Plan were as follows:

	U.K. Plan									Japan Plan
	2014			2013			2012			2014			2013			2012
Weighted-average discount rate		4.6	%		4.3	%		4.9	%		1.0	%		1.3	%		1.2	%
Weighted-average rate of compensation increase		—			—			—			3.0	%		3.0	%		3.0	%
Weighted-average long-term rate of return on plan assets		5.9	%		5.7	%		5.0	%		1.0	%		1.0	%		—

The actuarial assumptions used to compute the funded status as of December 31, 2014 and 2013, respectively, for the U.K. Plan and the Japan Plan were as follows:

	U.K. Plan						Japan Plan
	2014			2013			2014		2013
Weighted-average discount rate		3.5	%		4.6	%		—		1.0	%
Weighted-average rate of compensation increase		—			—			—		3.0	%
Rate of inflation		3.6	%		2.7	%		—		—

The discount rates used are derived on (AA) corporate bonds that have maturities approximating the terms of the related obligations. In estimating the expected return on plan assets, the Company considered the historical performance of the major asset classes held and current forecasts of future rates of return for these asset classes.

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AS OF DECEMBER 31, 2014

The following table provides a reconciliation of benefit obligations and plan assets of the U.K. Plan and the Japan Plan (in thousands):

	U.K. Plan						Japan Plan
	2014			2013			2014			2013
Change in benefit obligation:
Projected benefit obligation at beginning of year	$	35,193		$	34,713		$	1,123		$	1,613
Service cost		—			—			101			99
Interest cost		1,589			1,403			13			10
Actuarial (gains) losses		6,060			(889	)		(49	)		(58	)
Benefits paid		(1,006	)		(688	)		(340	)		(928	)
Plan curtailments		—			—			(252	)		—
Foreign currency exchange rate changes		(2,415	)		654			145			387
Projected benefit obligation at end of year	$	39,421		$	35,193		$	741		$	1,123
Accumulated benefit obligation at end of year	$	39,421		$	35,193		$	741		$	833
Change in plan assets:
Fair value of plan assets at beginning of year	$	33,457		$	28,629		$	537		$	801
Actual return on plan assets		2,234			3,903			3			4
Employer contributions		1,000			847			253			521
Benefits paid		(1,006	)		(688	)		(340	)		(928	)
Foreign currency exchange rate changes		(2,075	)		766			(41	)		139
Fair value of plan assets at end of year	$	33,610		$	33,457		$	412		$	537
Funded status at end of year	$	(5,811	)	$	(1,736	)	$	(329	)	$	(586	)
Amounts included in accumulated other comprehensive loss not yet recognized in net periodic pension cost
Net actuarial (loss) gain	$	(11,890	)	$	(7,142	)	$	—		$	2
Prior service cost	$	—		$	—		$	—		$	(211	)
Net transition obligation	$	—		$	—		$	—		$	(163	)
Amounts expected to be amortized from accumulated other comprehensive loss into net periodic cost over the next fiscal year consists of:
Net actuarial (loss) gain	$	892		$	386		$	—		$	—
Prior service cost	$	—		$	—		$	—		$	12
Net transition obligation	$	—		$	—		$	—		$	19

The following table reflects the total expected benefit payments to plan participants and have been estimated based on the same assumptions used to measure the Company’s benefit obligations as of December 31, 2014 (in thousands):

	U.K. Plan		Japan Plan
2015	$	827	$	514
2016		974		76
2017		1,092		76
2018		900		75
2019		1,290		-
2020-2024		8,097		-
Total	$	13,180	$	741

In the U.K., funding valuations are conducted every three years in order to determine the future level of contributions. The Company’s latest funding valuation was completed in August 2013. Based on the results of the valuation, the Company’s annual contributions to the U.K. Plan are $1.0 million per year. The Company anticipates that contributions for 2015 will be $1.0 million for the U.K. Plan and $0.1 million for the Japan Plan.

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AS OF DECEMBER 31, 2014

Fair Value of Plan Assets

In the U.K., the Company’s overall objective is to invest plan assets in a portfolio of diversified assets, primarily through the use of institutional collective funds, to achieve long-term growth. The strategic asset allocation uses a combination of risk controlled and index strategies in fixed income and global equities. The target allocations are approximately 60% to funds investing in global equities, approximately 23% to funds investing in global bonds, approximately 7% to alternative assets (including private equity and debt, real estate and hedge funds), and approximately 10% in cash.

In Japan, the investment strategy is primarily focused on the preservation of principal invested in insurance contracts.

The following table summarizes the fair values of Plan assets as of December 31, 2014 by asset category (in thousands):

	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Asset Category
U.K. Plan
Mutual Funds:
Balanced (1)	$	16,287	$	—	$	16,287	$	—
Growth (2)		17,149		—		17,149		—
Cash		174		174		—		—
Total	$	33,610	$	174	$	33,436	$	—
Japan Plan
Insurance contracts (3)	$	412	$	—	$	412	$	—
Total	$	412	$	—	$	412	$	—

(1) This class comprises a diversified portfolio of global investments which seeks a balanced return between capital growth and fixed income and is allocated on a weighted average basis as follows: equities (54%), bonds (32%), other assets (5%) and cash (9%).

(2) This class comprises a diversified portfolio of global investments which seeks long-term capital growth and is allocated on a weighted average basis as follows: equities (67%), bonds (15%), other assets (8%) and cash (10%).

(3) This class represents funds invested in insurance contracts.

The following table summarizes the fair values of Plan assets as of December 31, 2013 by asset category (in thousands):

	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Asset Category
U.K. Plan
Mutual Funds:
Balanced (1)	$	16,260	$	—	$	16,260	$	—
Growth (2)		17,060		—		17,060		—
Cash		137		137		—		—
Total	$	33,457	$	137	$	33,320	$	—
Japan Plan
Insurance contracts (3)	$	537	$	—	$	537	$	—
Total	$	537	$	—	$	537	$	—

(1) This class comprises a diversified portfolio of global investments which seeks a balanced return between capital growth and fixed income and is allocated on a weighted average basis as follows: equities (51%), bonds (33%), other assets (8%) and cash (8%).

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AS OF DECEMBER 31, 2014

(2) This class comprises a diversified portfolio of global investments which seeks long-term capital growth and is allocated on a weighted average basis as follows: equities (70%), other assets (14%), bonds (9%), and cash (7%).

(3) This class represents funds invested in insurance contracts.

The tables above present the fair value of plan assets in accordance with the fair value hierarchy. Certain pension plan assets are measured using net asset value per share (or its equivalent) and are reported as a level 2 investment above, as these investments have quoted prices in inactive markets; and significant other observable inputs which can be corroborated by observable market data for substantially the full term of the plan assets.

Defined Contribution Plans

The Company has defined contribution employee savings plans in the U.K. and the U.S. The Company matches the contributions of participating employees on the basis of percentages specified in each plan. Company matching contributions to the plans were $2.6 million, $1.7 million and $1.3 million for the years ended December 31, 2014, 2013 and 2012, respectively.

13. Income Taxes

Components of the Company’s income (loss) from continuing operations before income taxes are as follows (in thousands):

	Year Ended December 31,
	2014			2013			2012
Income (loss) from continuing operations before income taxes:
Canadian	$	(20,212	)	$	(5,366	)	$	(5,199	)
U.S.		(9,661	)		12,838			18,987
Other		11,958			8,705			2,914
Total	$	(17,915	)	$	16,177		$	16,702

Components of the Company’s income tax provision (benefit) are as follows (in thousands):

	Year Ended December 31,
	2014			2013		2012
Current
Canadian	$	175		$	—	$	—
U.S.		3,615			1,662		3,560
Other		1,940			652		2,275
		5,730			2,314		5,835
Deferred
Canadian		—			—		—
U.S.		(6,731	)		2,206		(14,467	)
Other		(5	)		1,680		(2,963	)
		(6,736	)		3,886		(17,430	)
Total	$	(1,006	)	$	6,200	$	(11,595	)

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GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

The Company is incorporated in Canada and therefore uses the Canadian statutory rate. The reconciliation of the statutory Canadian income tax rate to the effective rate related to income from continuing operations before income taxes is as follows (in thousands, except percentage data):

	Year Ended December 31,
	2014			2013			2012
Statutory Canadian tax rate		27.00	%		26.00	%		25.00	%
Expected income tax provision at statutory Canadian tax rate	$	(4,837	)	$	4,206		$	4,176
International tax rate differences		(1,132	)		156			1,863
Permanent differences		(88	)		106			227
Change in valuation allowance		4,809			(3,076	)		(17,564	)
Prior year provision to return differences		962			(312	)		37
Net operating loss expirations		—			4,538			—
Statutory tax rate change		(13	)		354			316
Uncertain tax positions		134			259			(4,093	)
Tax credits		(1,678	)		(938	)		—
State income taxes, net		(271	)		148			478
IRS audit		241			680			1,846
Withholding and other taxes		421			321			488
Other		116			(242	)		631
Goodwill impairment		330			—			—
Reported income tax provision (benefit)	$	(1,006	)	$	6,200		$	(11,595	)
Effective tax rate		5.6	%		38.3	%		(69.4	)%

Deferred income taxes result principally from temporary differences in the recognition of certain revenue and expense items and operating loss carryforwards and credit carryforwards for financial and tax reporting purposes. Significant components of the Company’s deferred tax assets and liabilities as of December 31, 2014 and 2013 are as follows (in thousands):

	December 31,
	2014			2013
Deferred tax assets
Losses & IRC Section 163(j) carryforwards	$	12,742		$	16,059
Compensation related deductions		3,749			2,649
Tax credits		3,502			3,817
Restructuring related liabilities		64			406
Inventory		4,495			4,939
Depreciation		683			938
Amortization		—			—
Warranty		876			888
Other		2,206			824
Total deferred tax assets		28,317			30,520
Valuation allowance for deferred tax assets		(14,495	)		(11,534	)
Net deferred income tax assets	$	13,822		$	18,986
Deferred tax liabilities
Equity investment	$	(1,594	)	$	(1,025	)
Depreciation		(341	)		(583	)
Amortization		(36	)		(11,417	)
Unrealized currency gain/loss		(2,595	)		(983	)
Other		(525	)		(326	)
Total deferred tax liabilities	$	(5,091	)	$	(14,334	)
Net deferred income tax assets (liabilities)	$	8,731		$	4,652

78

GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

In determining its 2014, 2013, and 2012 income tax provisions, the Company calculated deferred tax assets and liabilities for each separate jurisdiction. The Company then considered a number of factors, including positive and negative evidence related to the realization of its deferred tax assets to determine whether a valuation allowance should be recognized with respect to its deferred tax assets.

In 2014, the Company recorded valuation allowances against its current year net operating losses in certain tax jurisdictions of $0.3 million and increased valuation allowance recorded on certain U.S. state tax net operating losses of $0.3 million and capital loss carryforward of $0.4 million.

In 2013, the Company adjusted a portion of its Canadian loss carryforward and the related valuation allowance of $4.8 million. The Company also recorded valuation allowances against its current year net operating losses in certain tax jurisdictions of $1.3 million and released valuation allowance previously recorded on certain U.S. state tax credits of $0.3 million. Additionally, the Company adjusted the carrying value of deferred tax assets on net operating losses and tax credits and their related valuation allowance in Canada and the U.K. as a result of changes in statutory tax rates amounting to $0.7 million in 2013.

In 2012, the Company recognized a tax benefit of $15.3 million due to the release of a portion of the valuation allowance on deferred tax assets which the Company believes are more likely than not to be realized. Our effective income tax rate benefited from the availability of previously unrealized deferred tax assets which the Company utilized to reduce tax expense for the U.S., U.K., France, and Japan for income tax purposes.

Valuation allowance continues to be provided on U.S. capital loss, certain state net operating loss and certain foreign tax attributes that the Company has determined that it is more likely than not that they will not be realized. In conjunction with the Company’s ongoing review of its actual results and anticipated future earnings, the Company continuously reassesses the possibility of releasing the valuation allowance currently in place on its deferred tax assets.

As of December 31, 2014, the Company had net operating loss carryforwards of $4.5 million (tax effected) available to reduce future taxable income. Of this amount, approximately $1.4 million relates to the U.S. and expires through 2033; $2.3 million relates to Canada and expires starting in 2015; and $0.8 million relates to the U.K. and can be carried forward indefinitely.

As of December 31, 2014, the Company had tax credits of approximately $4.2 million available to reduce income taxes in future years. Approximately $2.1 million relates to the U.S., both federal and state, and expires through 2034. The remaining $2.1 million relates to Canada, of which $0.8 million expires through 2021 and $1.3 million can be carried forward indefinitely.

Income and foreign withholding taxes have not been recognized on the excess of the amount for financial reporting purposes over the tax basis of investments in foreign subsidiaries that are essentially permanent in nature. This amount becomes taxable upon a repatriation of assets from a subsidiary or a sale or liquidation of a subsidiary. The amount of undistributed earnings of foreign subsidiaries totaled $15.8 million as of December 31, 2014. The estimated unrecognized deferred income tax liabilities on this temporary difference is approximately $1.1 million.

As of December 31, 2012, the amount of gross unrecognized tax benefits totaled approximately $7.6 million, of which $4.3 million would favorably affect the Company’s effective tax rate, if recognized. As a result of settling a U.S. federal tax examination, the Company released $3.0 million of unrecognized tax benefits during the year ended December 31, 2012. As of December 31, 2013, the Company’s total amount of gross unrecognized tax benefits was $7.1 million, of which $4.9 million would favorably affect its effective tax rate, if recognized. As of December 31, 2014, the Company’s total amount of gross unrecognized tax benefits was $6.3 million, of which $4.1 million would favorably affect its effective tax rate, if recognized. Over the next twelve months, the Company may need to record up to $0.7 million of previously unrecognized tax benefits in the event of statute of limitations closures. The Company believes there are no other jurisdictions in which the outcome of unresolved issues or claims is likely to be material to its results of operations, financial position or cash flows. Furthermore, the Company believes it has adequately provided for all income tax uncertainties.

79

GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

The reconciliation of the total amounts of unrecognized tax benefits is as follows (in thousands):

Balance at December 31, 2011	$	7,284
Additions based on tax positions related to the current year		2,618
Additions for tax positions of prior years		1,422
Reductions for tax positions of prior years		(481	)
Reductions to tax positions resulting from a lapse of the applicable statute of limitations		(254	)
Settlements with taxation authorities		(3,035	)
Balance at December 31, 2012		7,554
Additions based on tax positions related to the current year		508
Additions for tax positions of prior years		1,475
Reductions for tax positions of prior years		(1,888	)
Reductions to tax positions resulting from a lapse of the applicable statute of limitations		(575	)
Balance at December 31, 2013		7,074
Additions based on tax positions related to the current year		1,180
Additions for tax positions of prior years		2,601
Reductions for tax positions of current years		(2,404	)
Reductions to tax positions resulting from a lapse of the applicable statute of limitations		(2,177	)
Balance at December 31, 2014	$	6,274

The Company recognizes interest and penalties related to uncertain tax positions in income tax expense. As of December 31, 2014 and 2013, the Company had approximately $0.6 million and $0.3 million, respectively, of accrued interest and penalties related to uncertain tax positions. During the year ended December 31, 2014 the Company recognized approximately $0.3 million of expense related to an increase in interest and penalties related to uncertain tax positions. During the year ended December 31, 2013, the Company recognized approximately $0.3 million of benefits from lower interest and penalties related to uncertain tax positions.

The Company files income tax returns in Canada, the U.S., and various states and foreign jurisdictions. Generally, the Company is no longer subject to U.S. or foreign income tax examinations by tax authorities for the years before 2006.

The Company’s income tax returns may be reviewed in the following countries for the following periods under the appropriate statute of limitations:

United States	2009 -  Present
Canada	2007 -  Present
United Kingdom	2013 -  Present
China	2011 -  Present
Japan	2009 -  Present
Germany	2008 -  Present
Netherlands	2009 -  Present

80

GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

14. Restructuring and Acquisition Related Costs

The following table summarizes restructuring and acquisition related costs recorded in the accompanying consolidated statements of operations (in thousands):

	Year Ended December 31,
	2014		2013		2012
2011 restructuring	$	389	$	1,287	$	1,584
2012 restructuring		—		—		1,758
2013 restructuring		25		2,463		—
Novi and U.K. restructuring		—		—		(40	)
Germany restructuring		—		7		276
Total restructuring charges	$	414	$	3,757	$	3,578
Acquisition and related charges	$	909	$	1,630	$	791
JADAK earn-out costs		612		—		—
Total acquisition related charges	$	1,521	$	1,630	$	791
Total restructuring and acquisition related costs	$	1,935	$	5,387	$	4,369

2011 Restructuring

In November 2011, the Company announced a strategic initiative (“2011 restructuring”), which aimed to consolidate operations to reduce the Company’s cost structure and improve operational efficiency. In total, eleven facilities have been exited as part of the 2011 restructuring plan. These eliminations resulted in the consolidation of the manufacturing facilities of the Scientific Lasers business and the optics products, consolidation of the Company’s German operations into one facility, and consolidation of the laser scanners business into the Company’s Bedford, MA manufacturing facility. Included in the eleven facilities exited are five facilities exited as part of the Semiconductor and Laser Systems business divestitures. The facility exit costs for the divested businesses have been excluded from the table above. The Company substantially completed the 2011 restructuring program in 2013.

Presented below are actual cash charges, including severance, relocation, facility closure and consulting costs, and non-cash charges related to depreciation (in thousands):

								Cumulative
	Year Ended December 31,							Costs as of
	2014			2013		2012		December 31, 2014
Cash charges	$	(235	)	$	1,037	$	1,540	$	3,048
Non-cash charges		624			250		44		1,006
Total restructuring costs	$	389		$	1,287	$	1,584	$	4,054

The following table summarizes restructuring costs for each segment and unallocated corporate costs related to the 2011 restructuring plan (in thousands):

								Cumulative
	Year Ended December 31,							Costs as of
	2014			2013		2012		December 31, 2014
Laser Products	$	(106	)	$	1,042	$	386	$	1,939
Medical Technologies		—			48		—		48
Precision Motion		—			5		52		122
Corporate, Shared Services and Unallocated costs		495			192		1,146		1,945
Total	$	389		$	1,287	$	1,584	$	4,054

81

GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

2012 Restructuring

During 2012, the Company initiated and completed a program to identify additional cost savings due to the continued uncertainty and volatility of the macroeconomic environment (“2012 restructuring”). The Company incurred $1.8 million of severance costs associated with the 2012 restructuring program during the year ended December 31, 2012.

The following table summarizes the total costs associated with the 2012 restructuring program for each segment and unallocated corporate costs for the year ended December 31, 2012 (in thousands):

	Year Ended December 31,
	2012
Laser Products	$	501
Precision Motion		951
Corporate, Shared Services and Unallocated costs		306
Total	$	1,758

2013 Restructuring

During the first half of 2013, the Company initiated a program following our acquisition of NDS to integrate the NDS business into our operating structure and further reduce manufacturing and operating costs across businesses to leverage our infrastructure and further integrate our product lines. The Company incurred $2.3 million of cash related charges primarily related to severance and exit costs associated with a facility exited during the year ended December 31, 2013.

The following table summarizes restructuring costs for each segment and unallocated corporate costs related to the 2013 restructuring program (in thousands):

	Year Ended December 31,
	2013
Laser Products	$	836
Medical Technologies		806
Precision Motion		378
Corporate, Shared Services and Unallocated costs		443
Total	$	2,463

Other Restructuring

The Company recorded restructuring charges related to the elimination of the Company’s Munich, Germany facility as a result of a restructuring program undertaken beginning in 2000 (“Germany restructuring”). The Company terminated the lease agreement and completed the Germany restructuring by making a final payment of $0.3 million to the landlord in December 2012.

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GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

Rollforward of Accrued Expenses Related to Restructuring

The following table summarizes the accrual activities, by component, related to the Company’s restructuring charges recorded in the accompanying consolidated balance sheets (in thousands):

	Total			Severance			Facility			Depreciation			Other
Balance at December 31, 2012	$	1,931		$	1,295		$	494		$	—		$	142
Restructuring charges		3,757			2,259			698			250			550
Acquired lease obligation		128			—			128			—			—
Cash payments		(4,516	)		(2,904	)		(1,085	)		—			(527	)
Non-cash write-offs and other adjustments		74			37			413			(250	)		(126	)
Balance at December 31, 2013		1,374			687			648			—			39
Restructuring charges		414			(83	)		(309	)		624			182
Cash payments		(933	)		(502	)		(234	)		—			(197	)
Non-cash write-offs and other adjustments		(624	)		—			—			(624	)		—
Balance at December 31, 2014	$	231		$	102		$	105		$	—		$	24

The Company expects to make $0.1 million in cash payments during the twelve months ending December 31, 2015.

15. Commitments and Contingencies

Operating Leases

The Company leases certain equipment and facilities under operating lease agreements. Most of these lease agreements expire between 2015 and 2019. In the U.K., where longer lease terms are more common, the Company has a land lease that extends through 2078. During the years ended December 31, 2014, 2013 and 2012, the Company recorded lease expense of $4.1 million, $4.9 million and $4.1 million, respectively. In addition to the base rent, the Company is generally required to pay insurance, real estate taxes and maintenance costs which is recorded in lease expense.  

In connection with the sale of the Scientific Lasers business, the Company assigned to the buyer the lease for the facility in San Jose, California, where the Scientific Lasers business operated. The buyer assumed all of our rights and obligations under the original lease, including the duty to pay the rent for the remainder term of the lease. So long as the buyer performs its obligations as the tenant, as required by the Asset and Equity Purchase Agreement for its acquisition of the Scientific Lasers business, the Company has no responsibilities for the lease. If the buyer should cease performance under the lease, however, the landlord could still pursue the Company as the original tenant until February 28, 2019, the end of the lease term. The Company has indemnification rights against the buyer under the Asset and Equity Purchase Agreement. The lease associated with this facility has been excluded from the operating lease commitments table below.

Capital Leases

In 2014, the Company capitalized $10.4 million of assets which met the criteria under ASC 840-30, “Leases—Capitalized Leases,” which requires the Company to capitalize and depreciate the assets over the lease term.

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GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

Future minimum lease payments under operating and capital leases expiring subsequent to December 31, 2014, including operating leases associated with facilities that have been vacated as a result of the Company’s restructuring actions, are as follows (in thousands):

Year Ending December 31,	Operating Leases		Capital Leases(1)
2015	$	4,888	$	1,261
2016		4,065		1,261
2017		3,149		1,290
2018		2,821		860
2019		1,791		884
Thereafter		5,605		9,045
Total minimum lease payments	$	22,319	$	14,601

(1) Capital lease payments include interest payments of $4.3 million.

Purchase Commitments

As of December 31, 2014, the Company had unconditional commitments primarily for inventory purchases of $51.0 million. These purchase commitments are expected to be incurred as follows: $49.5 million in 2015, $1.2 million in 2016, and $0.3 million in 2017.

Legal Proceedings

The Company is subject to various legal proceedings and claims that arise in the ordinary course of business. The Company does not believe that the outcome of these claims will have a material adverse effect upon its financial condition or results of operations but there can be no assurance that any such claims, or any similar claims, would not have a material adverse effect upon its financial condition or results of operations.

Guarantees and Indemnifications

In the normal course of its operations, the Company executes agreements that provide for indemnification and guarantees to counterparties in transactions such as business dispositions, sale of assets, sale of products and operating leases. Additionally, the by-laws of the Company require it to indemnify certain current or former directors, officers, and employees of the Company against expenses incurred by them in connection with each proceeding in which he or she is involved as a result of serving or having served in certain capacities. Indemnification is not available with respect to a proceeding as to which it has been adjudicated that the person did not act in good faith in the reasonable belief that the action was in the best interests of the Company. Certain of our officers and directors are also a party to indemnification agreements with the Company. These indemnification agreements provide, among other things, that the director and officer shall be indemnified to the fullest extent permitted by applicable law against all expenses, judgments, fines and amounts paid in settlement actually and reasonably incurred by such officer or director in connection with any proceeding by reason of his or her relationship with the Company. In addition, the indemnification agreements provide for the advancement of expenses incurred by such director or officer in connection with any proceeding covered by the indemnification agreement, subject to the conditions set forth therein and to the extent such advancement is not prohibited by law. The indemnification agreements also set out the procedures for determining entitlement to indemnification, the requirements relating to notice and defense of claims for which indemnification is sought, the procedures for enforcement of indemnification rights, the limitations on and exclusions from indemnification, and the minimum levels of directors’ and officers’ liability insurance to be maintained by the Company.

On July 1, 2013, the Company provided a Guarantee (the “Guarantee”) in favor of the trustees of the U.K. Plan with respect to all present and future obligations and liabilities (whether actual or contingent and whether owed jointly or severally and in any capacity whatsoever) of GSI Group Limited, a wholly owned subsidiary of GSI Group Inc.

Credit Risks and Other Uncertainties

The Company maintains financial instruments such as cash and cash equivalents and trade receivables. From time to time, certain of these instruments may subject the Company to concentrations of credit risk whereby one institution may hold a significant portion of the cash and cash equivalents, or one customer may compose a large portion of the accounts receivable balances.

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GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

There was no significant concentration of credit risk related to the Company’s position in trade accounts receivable as no individual customer represented 10% or more of the Company’s outstanding accounts receivable at December 31, 2014 and 2013. Credit risk with respect to trade accounts receivables is generally minimized because of the diversification of the Company’s operations, as well as its large customer base and its geographical dispersion.

Certain of the components and materials included in the Company’s products are currently obtained from single source suppliers. There can be no assurance that a disruption of this outside supply would not create substantial manufacturing delays and additional cost to the Company.

The Company’s operations involve a number of other risks and uncertainties including, but not limited to, the effects of general economic conditions, rapidly changing technology, and international operations.

16. Segment Information

Reportable Segments

The Company evaluates the performance of, and allocates resources to, its segments based on sales, gross profit and operating profit. The Company reports assets on a consolidated basis to the chief operating decision maker, which is the Chief Executive Officer. The Company’s reportable segments have been identified based on commonality of end markets, customers, applications and technologies amongst the Company’s individual product lines, which is consistent with the Company’s operating structure, associated management structure, and management compensation programs.

We operate in three reportable segments: Laser Products, Medical Technologies, and Precision Motion. The reportable segments and their principal activities consist of the following:

Laser Products

The Laser Products segment designs, manufactures and markets photonics-based solutions to customers worldwide. The segment serves highly demanding photonics-based applications such as industrial material processing, and medical and life science imaging and laser procedures. The vast majority of the segment’s product offerings are sold to OEM customers. The business sells these products both directly, utilizing a highly technical sales force, and indirectly, through resellers and distributors.

Medical Technologies

The Medical Technologies segment designs, manufactures and markets a range of medical grade technologies, including visualization solutions, imaging informatics products, optical data collection and machine vision technologies, thermal printers, and light and color measurement instrumentation to customers worldwide. The vast majority of the segment’s product offerings are sold to OEM customers. The segment sells these products both directly, utilizing a highly technical sales force, and indirectly, through resellers and distributors.

Precision Motion

The Precision Motion segment designs, manufactures and markets optical encoders, air bearing spindles and precision machined componentsto customers worldwide. The vast majority of the segment’s product offerings are sold into the electronics, industrial and, to a lesser extent, the medical markets. The segment sells these products both directly, utilizing a highly technical sales force, and indirectly, through resellers and distributors.

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GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

Reportable Segment Financial Information

Sales, gross profit, operating income (loss) from continuing operations, and depreciation and amortization by reportable segments are as follows (in thousands):

	Year Ended December 31,
	2014		2013		2012
Sales
Laser Products	$	177,726	$	166,598	$	158,639
Medical Technologies		122,187		90,276		25,915
Precision Motion		64,793		60,036		59,242
Total	$	364,706	$	316,910	$	243,796

	Year Ended December 31,
	2014			2013			2012
Gross Profit
Laser Products	$	74,224		$	68,819		$	66,498
Medical Technologies		48,678			35,824			13,149
Precision Motion		28,333			27,778			26,796
Corporate, Shared Services and Unallocated		(1,068	)		(194	)		(925	)
Total	$	150,167		$	132,227		$	105,518

	Year Ended December 31,
	2014			2013			2012
Operating Income (Loss) from Continuing Operations
Laser Products	$	33,053		$	25,143		$	24,480
Medical Technologies		(43,079	)		3,566			8,285
Precision Motion		13,023			12,062			9,482
Corporate, Shared Services and Unallocated		(19,803	)		(21,325	)		(21,985	)
Total	$	(16,806	)	$	19,446		$	20,262

	Year Ended December 31,
	2014		2013		2012
Depreciation and Amortization
Laser Products	$	6,481	$	6,335	$	6,448
Medical Technologies		13,254		8,808		702
Precision Motion		1,943		1,979		2,066
Corporate, Shared Services and Unallocated		2,743		2,828		3,467
Total	$	24,421	$	19,950	$	12,683

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GSI GROUP INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS — (Continued)

AS OF DECEMBER 31, 2014

Geographic Information

The Company aggregates geographic sales based on the customer location where products are shipped. Sales to these customers are as follows (in thousands, except percentage data):

	Year Ended December 31,
	2014					2013					2012
	Sales		% of Total			Sales		% of Total			Sales		% of Total
United States	$	140,973		38.7	%	$	107,892		34.0	%	$	76,437		31.4	%
Germany		59,029		16.2			56,287		17.8			32,822		13.5
Rest of Europe		54,308		14.9			45,698		14.4			41,466		17.0
China		40,792		11.2			37,651		11.9			21,001		8.6
Rest of Asia-Pacific		58,830		16.1			57,802		18.2			65,262		26.8
Other		10,774		2.9			11,580		3.7			6,808		2.7
Total	$	364,706		100.0	%	$	316,910		100.0	%	$	243,796		100.0	%

Long-lived assets consist of property, plant and equipment, net, and are aggregated based on the location of the assets. A summary of these long-lived assets is as follows (in thousands):

	December 31,
	2014		2013
United States	$	32,988	$	23,305
Europe		5,318		5,617
China		1,705		2,196
Asia-Pacific and other		77		185
Total	$	40,088	$	31,303

Significant Customers

No customer accounted for greater than 10% of the Company’s sales during the years ended December 31, 2014, 2013 or 2012.

17. Subsequent Events

On February 19, 2015, the Company acquired Applimotion Inc. (“Applimotion”), a Loomis, California-based provider of advanced precision motor and motion control technology to OEMs for advanced industrial and medical markets, for $13.9 million in cash, subject to customary working capital adjustments. Applimotion specializes in motor applications that require highly precise and dynamic motion control. The acquisition enhances the Company’s strategic position in precision motion control by enabling the Company to offer a broader range of motion control technologies and integrated solutions.  The Applimotion business will be integrated into the Company’s optical encoders business line, which is part of the Company’s Precision Motion segment. Information required by ASC 805-10, “Business Combinations,” was not disclosed herein as the Company is in process of completing its purchase price allocation.

87

Supplementary Information

(Unaudited)

The Company’s interim financial statements are prepared on a quarterly basis ending on the Friday closest to the end of the calendar quarter, with the exception of the fourth quarter which always ends on December 31.

In December 2014, the Company determined that an impairment test of the NDS goodwill and intangible assets was required, resulting in an impairment charge of $41.4 million in operating expenses.

On March 14, 2014, the Company acquired JADAK and started to include the operating results of JADAK in the consolidated financial statements as of the acquisition date. In July 2014, the Company completed the sale of certain assets and liabilities of the Scientific Lasers business for $6.5 million in cash, net of working capital adjustments, and recorded a $1.7 million loss on sale.

On January 15, 2013, the Company acquired NDS and started to include the operating results of NDS in the consolidated financial statements as of the acquisition date. In the second quarter of 2013, the Company consummated the sale of certain assets and liabilities of the Semiconductor Systems business for $8.0 million in cash, subject to closing working capital adjustments, and recorded a $0.3 million loss, net of tax. In September 2013, the Company settled final working capital adjustments on the sale of the Laser Systems business and the Semiconductor Systems business and recognized additional loss on disposal of these businesses of $0.3 million, net of tax.

The following tables reflect the Company’s unaudited condensed consolidated statements of operations (in thousands except per share data):

	Three Months Ended
	December 31,			September 26,			June 27,			March 28,
	2014			2014			2014			2014
Sales	$	94,012		$	94,656		$	96,905		$	79,133
Cost of goods sold		54,284			54,973			58,254			47,028
Gross profit		39,728			39,683			38,651			32,105
Operating expenses:
Research and development and engineering		7,837			7,735			7,525			5,857
Selling, general and administrative		21,840			21,512			21,410			19,618
Amortization of purchased intangible assets		2,799			2,843			2,876			1,744
Restructuring and acquisition related costs		(14	)		771			360			818
Impairment of goodwill and intangible assets		41,442			—			—			—
Total operating expenses		73,904			32,861			32,171			28,037
Operating income (loss) from continuing operations		(34,176	)		6,822			6,480			4,068
Interest income (expense), foreign exchange transaction gains (losses) and other income (expense), net		(127	)		310			(1,017	)		(275	)
Income (loss) from continuing operations before income taxes		(34,303	)		7,132			5,463			3,793
Income tax provision		(6,013	)		2,013			2,057			937
Income (loss) from continuing operations		(28,290	)		5,119			3,406			2,856
Loss from discontinued operations, net of tax		(790	)		(273	)		(2,678	)		(1,866	)
Loss on disposal of discontinued operations, net of tax		(1,405	)		(321	)		—			—
Consolidated net income (loss)		(30,485	)		4,525			728			990
Less: Net income attributable to noncontrolling interest		—			—			(3	)		(7	)
Net income (loss) attributable to GSI Group Inc.	$	(30,485	)	$	4,525		$	725		$	983
Earnings (loss) per common share from continuing operations:
Basic	$	(0.82	)	$	0.15		$	0.10		$	0.08
Diluted	$	(0.82	)	$	0.15		$	0.10		$	0.08
Loss per common share from discontinued operations:
Basic	$	(0.06	)	$	(0.02	)	$	(0.08	)	$	(0.05	)
Diluted	$	(0.06	)	$	(0.02	)	$	(0.08	)	$	(0.05	)
Earnings (loss) per common share attributable to GSI Group Inc.
Basic	$	(0.88	)	$	0.13		$	0.02		$	0.03
Diluted	$	(0.88	)	$	0.13		$	0.02		$	0.03

88

	Three Months Ended
	December 31,			September 27,			June 28,			March 29,
	2013			2013			2013			2013
Sales	$	82,212		$	79,858		$	79,769		$	75,071
Cost of goods sold		48,016			45,697			46,530			44,440
Gross profit		34,196			34,161			33,239			30,631
Operating expenses:
Research and development and engineering		5,825			6,031			6,115			5,816
Selling, general and administrative		19,268			19,006			19,374			18,689
Amortization of purchased intangible assets		1,645			1,772			1,617			2,236
Restructuring and acquisition related costs		663			1,553			743			2,428
Total operating expenses		27,401			28,362			27,849			29,169
Operating income from continuing operations		6,795			5,799			5,390			1,462
Interest income (expense), foreign exchange transaction gains (losses) and other income (expense), net		(850	)		(2,022	)		(1,087	)		690
Income from continuing operations before income taxes		5,945			3,777			4,303			2,152
Income tax provision		1,246			1,533			3,018			403
Income from continuing operations		4,699			2,244			1,285			1,749
Income (loss) from discontinued operations, net of tax		(411	)		(185	)		(1,827	)		369
Loss on disposal of discontinued operations, net of tax		—			(281	)		(311	)		—
Consolidated net income (loss)		4,288			1,778			(853	)		2,118
Less: Net (income) loss attributable to noncontrolling interest		20			12			(18	)		(36	)
Net income (loss) attributable to GSI Group Inc.	$	4,308		$	1,790		$	(871	)	$	2,082
Earnings per common share from continuing operations:
Basic	$	0.14		$	0.07		$	0.03		$	0.05
Diluted	$	0.14		$	0.07		$	0.03		$	0.05
Earnings (loss) per common share from discontinued operations:
Basic	$	(0.01	)	$	(0.02	)	$	(0.06	)	$	0.01
Diluted	$	(0.01	)	$	(0.02	)	$	(0.06	)	$	0.01
Earnings (loss) per common share attributable to GSI Group Inc.
Basic	$	0.13		$	0.05		$	(0.03	)	$	0.06
Diluted	$	0.13		$	0.05		$	(0.03	)	$	0.06

89

Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure

The information required by this Item 9 was previously reported in Item 9 of our Annual Report on Form 10-K for the year ended December 31, 2013 that was filed with the Securities and Exchange Commission on March 13, 2014.

Item 9A. Controls and Procedures

The required certifications of our Chief Executive Officer and Chief Financial Officer are included in Exhibits 31.1 and 31.2 to this Annual Report on Form 10-K. The disclosures set forth in this Item 9A contain information concerning the evaluation of our disclosure controls and procedures, management’s report on internal controls over financial reporting and changes in internal control over financial reporting referred to in those certifications. Those certifications should be read in conjunction with this Item 9A for a more complete understanding of the matters covered by the certifications.

Evaluation of Disclosure Controls and Procedures as of December 31, 2014

Our management, with the participation of our Chief Executive Officer and Chief Financial Officer, conducted an evaluation of our disclosure controls and procedures, as such term is defined under Rule 13a-15(e) promulgated under the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Based on this evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of December 31, 2014.

Changes in Internal Control Over Financial Reporting

There have been no changes to our internal control over financial reporting during the fiscal quarter ended December 31, 2014 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

Management’s Annual Report on Internal Control Over Financial Reporting

Management is responsible for establishing and maintaining adequate internal control over financial reporting, as defined in Rules 13a-15(f) under the Exchange Act. Internal control over financial reporting is designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external reporting purposes in accordance with generally accepted accounting principles. Internal control over financial reporting includes those policies and procedures that:

· pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect our transactions and dispositions of our assets;

· provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that our receipts and expenditures are being made only in accordance with authorizations of our management and directors; and

· provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use or disposition of our assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions and that the degree of compliance with the policies or procedures may deteriorate.

Our management assessed the effectiveness of our internal control over financial reporting as of December 31, 2014. In making their assessment, our management utilized the criteria set forth in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”) in 2013. Our assessment of, and conclusion on, the effectiveness of internal control over financial reporting did not include the internal controls of JADAK, acquired on March 14, 2014, which is included in our 2014 consolidated financial statements and represented approximately 7% of our total assets as of December 31, 2014 and 12% of our total revenue from continuing operations for the year ended December 31, 2014. Based on our evaluation under the framework in Internal Control—Integrated Framework, issued by COSO in 2013, our management concluded that our internal control over financial reporting was effective as of December 31, 2014.

The effectiveness of our internal control over financial reporting as of December 31, 2014 has been audited by PricewaterhouseCoopers LLP, an independent registered public accounting firm, as stated in their report which is contained in Item 8 of this Annual Report on Form 10-K.

90

Item 9B. Other Information

None.

Certain information required by Part III is omitted from this Annual Report on Form 10-K and is incorporated herein by reference to the Registrant’s Definitive Proxy Statement for the 2015 Annual Meeting of Shareholders to be filed with the Securities and Exchange Commission.

91

PART III

Item 10. Directors, Executive Officers and Corporate Governance

All of the Company’s directors, officers and employees must act in accordance with the Code of Ethics and Business Conduct, which has been adopted by the Company’s Board of Directors. A copy of the Code of Ethics and Business Conduct is available on the Company’s website at http://www.gsig.com in the “About GSI” section. (This website address is not intended to function as a hyperlink, and the information contained in our website is not intended to be a part of this filing). The Company will provide to any person without charge, upon request, a copy of the Code of Ethics and Business Conduct. Such a request should be made in writing and addressed to GSI Group Inc., Attention: Investor Relations, 125 Middlesex Turnpike, Bedford, MA 01730. The Company intends to satisfy the disclosure requirement under NASDAQ rules regarding waivers or under Item 5.05 of Form 8-K regarding disclosure of an amendment to, or waiver from, a provision of this Code of Ethics and Business Conduct with respect to its principal executive officer, principal financial officer, principal accounting officer or controller, or persons performing similar functions, by posting such information on the Company’s website at http://www.gsig.com in the “About GSI” section, unless a Form 8-K is otherwise required by law or applicable listing rules.

The remainder of the response to this item is contained in the Proxy Statement for the Company’s Annual Meeting of Shareholders scheduled to be held on May 12, 2015 and is incorporated herein by reference.

Item 11. Executive Compensation

The information required to be disclosed by this item is contained in the Proxy Statement for the Company’s Annual Meeting of Shareholders scheduled to be held on May 12, 2015 and is incorporated herein by reference.

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

The information required to be disclosed by this item is contained in the Proxy Statement for the Company’s Annual Meeting of Shareholders scheduled to be held on May 12, 2015 and is incorporated herein by reference.

Item 13. Certain Relationships and Related Transactions, and Director Independence

The information required to be disclosed by this item is contained in the Proxy Statement for the Company’s Annual Meeting of Shareholders scheduled to be held on May 12, 2015 and is incorporated herein by reference.

Item 14. Principal Accounting Fees and Services

The information required to be disclosed by this item is contained in the Proxy Statement for the Company’s Annual Meeting of Shareholders scheduled to be held on May 12, 2015 and is incorporated herein by reference.

92

PART IV

Item 15. Exhibits and Financial Statement Schedules

(a) Documents filed as part of this report:

1. List of Financial Statements

The financial statements required by this item are listed in Item 8, “Financial Statements and Supplementary Data” herein.

2. List of Financial Statement Schedules

All schedules are omitted because they are not applicable, not required or the required information is shown in the consolidated financial statements or notes thereto.

3. List of Exhibits

See the Company’s SEC filings on Edgar at: http://www.sec.gov/ for all Exhibits.

		Incorporated by Reference
Exhibit Number	Exhibit Description	Form		File No.		Exhibit		Filing Date		Filed/ Furnished Herewith
2.1	Agreement and Plan of Merger, by and among the Registrant, Eagle Acquisition Corporation, and Excel Technology, Inc. dated July 9, 2008.		8-K		000-25705		2.1		7/11/08
2.2	Asset Purchase Agreement, by and between GSI Group Corporation and Gooch & Housego (California) LLC., dated July 3, 2008.		10-Q		000-25705		2.1		4/13/10
2.3	Final Fourth Modified Joint Chapter 11 Plan of Reorganization for the Registrant, GSI Group Corporation, and MES International, Inc., dated as of May 24, 2010, as supplemented on May 27, 2010, and as confirmed by the United States Bankruptcy Court for the District of Delaware on May 27, 2010.		8-K		000-25705		99.2		05/28/10
2.4	Master Purchase and Sale Agreement, dated April 9, 2013, between GSI Group Inc., GSI Group Corporation, GSI Group Corporation, Korea Branch, GSI Group Corporation, Taiwan Branch, GSI Group Japan Corporation, GSI Group GmbH and Electro Scientific Industries, Inc.		8-K		000-25705		2.1		5/09/13
2.5	Securities Purchase Agreement dated January 15, 2013, between NDSSI Holdings, LLC, NDS Surgical Imaging, Inc., GSI Group Inc. and GSI Group Limited UK.		8-K		001-35083		2.1		01/15/13
2.6	Equity Purchase Agreement dated February 18, 2014, between JADAK, LLC, JADAK Technologies, Inc., Advanced Data Capture Corporation, GSI Group Inc. and GSI Group Corporation.		8-K		001-35083		10.1		02/18/14
2.7	Asset and Equity Purchase Agreement, dated June 24, 2014, by and among GSI Group Inc., Excel Technology, Inc., Continuum Electro-Optics, Inc., GSI Europe GmbH, GSI Group France S.A.S., GSI Group Japan Corporation and Amplitude Laser, Inc. and Amplitude Technologies, S.A. (The registrant hereby agrees to furnish a copy of any omitted schedule to the Commission upon request.)		8-K		001-35083		2.1		07/21/14
3.1	Certificate and Articles of Continuance of the Registrant, dated March 22, 1999.		S-4/A		333-71449		Annex H		2/11/99
3.2	By-Laws of the Registrant, as amended.		10-Q		000-25705		3.2		4/13/10
3.3	Articles of Reorganization of the Registrant, dated July 23, 2010.		8-K		000-25705		3.1		07/23/10
3.4	Articles of Amendment of the Registrant, dated December 29, 2010.		8-K		000-25705		3.1		12/29/10
10.1†	Form of Indemnification Agreement.		8-K		000-25705		10.1		06/10/09
10.2†	GSI Group, Inc. 2010 Incentive Award Plan (Amended and Restated Effective April 9, 2014).		8-K		000-35083		10.1		05/20/14

93

		Incorporated by Reference
Exhibit Number	Exhibit Description	Form		File No.			Exhibit		Filing Date		Filed/ Furnished Herewith
10.3†	Employment Agreement, dated as of November 16, 2010, between GSI Group Inc. and John Roush.		8-K		000-25705			10.1		11/17/10
10.4†	Employment Agreement, dated as of February 10, 2011, between GSI Group Inc. and Robert Buckley.		8-K		001-35083			10.1		02/11/11
10.5†	Form of Deferred Stock Unit Award Agreement.		10-K		001-35083			10.59		03/30/11
10.6†	Form of Restricted Stock Unit Award Agreement for John Roush and Robert Buckley.		10-K		001-35083			10.60		03/30/11
10.7	First Amendment to the Engagement Letter between the Registrant, GSI Group Corporation, MES International, Inc. and FTI Consulting, Inc., dated as of February 6, 2011.		10-K		001-35083			10.61		03/30/11
10.8†	Form of U.S. Restricted Stock Unit Award Agreement.		10-Q		001-35083			10.2		05/16/11
10.9†	Offer Letter, dated June 8, 2011, between GSI Group Inc. and Peter Chang.		10-Q		001-35083			10.1		11/10/11
10.10	Amended and Restated Lease, dated May 1, 2012, by and between GSI Group Inc. and 125 Middlesex Turnpike, LLC.		8-K		001-35083			10.1		05/04/12
10.11	Second Amendment to Credit Agreement, dated July 19, 2012, by and among GSI Group Corporation, GSI Group Inc., and Bank of America, N.A., as Administrative Agent.		8-K		001-35083			10.1		07/23/12
10.12	Third Amendment to Credit Agreement, dated October 16, 2012, by and among GSI Group Corporation, GSI Group, Inc., and Bank of America, N.A., as Administrative Agent.		10-Q		001-35083			10.3		11/07/12
10.13†	Severance Agreement, dated as of August 15, 2012, between GSI Group Inc. and Peter Chang.		10-Q		001-35083			10.7		11/07/12
10.14	Amended and Restated Credit Agreement, dated as of December 27, 2012, by and among GSI Group Corporation, GSI Group Inc., Bank of America, N.A., as Administrative Agent, Line Lender and L/C Issuer, Silicon Valley Bank, as Syndication Agent, and HSBC Bank USA, N.A., as Documentation Agent, and the other lenders party thereto.		8-K		001-35083			10.1		01/03/13
10.15	Consent and First Amendment to Amended and Restated Credit Agreement dated January 14, 2013 by and among GSI Group Corporation and Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer.		8-K		001-35083			10.1		01/15/13
10.16	Joinder and Amendment Agreement, dated as of February 1, 2013, by and among GSI Group Corporation, NDS Surgical Imaging, LLC, GSI Group Inc., Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer, and the other lenders party thereto.		8-K		001-35083			10.1		02/07/13
10.17†	Letter Agreement, dated October 28, 2013, between GSI Group Inc. and Jamie Bader.		8-K		001-35083			10.1		10/30/13
10.18	Third Amendment to Amended and Restated Credit Agreement, dated September 13, 2013, by and among GSI Group Corporation, NDS Surgical Imaging, LLC, GSI Group Inc., each of the other Guarantors party hereto, each lender party hereto, and Bank of America, N.A., as Administrative Agent.		10-Q		001-35083			10.1		11/05/13
10.19	Lease Agreement, dated November 22, 2013, by and between Continuum Electro-Optics, Inc., GSI Group Corporation and Legacy Partners I San Jose, LLC.		8-K			001-35083		10.1		12/02/13

94

Incorporated by Reference

Exhibit Number

Exhibit Description

Form

File No.

Exhibit

Filing Date

Filed/ Furnished Herewith

10.20

Fourth Amendment to Amended and Restated Credit Agreement, dated as of February 10, 2014, by and among GSI Group Corporation, NDS Surgical Imaging, LLC, GSI Group Inc., Bank of America, N.A., as Administrative Agent, Swing Line Lender and L/C Issuer, and the other lenders party thereto.

8-K

001-35083

10.1

02/14/14

10.21

Restricted Stock Unit Inducement Award Grant Notice

S-8

333-194557

99.1

03/14/14

10.22

Lease Agreement, dated as of May 31, 2013, by and between JADAK, LLC and Hancock Part Development, LLC.

10-Q

001-35083

10.3

05/06/14

10.23

Severance Agreement between GSI Group Inc. and Deborah A. Mulryan, dated January 13, 2015.

*

21.1

Subsidiaries of the Registrant.

*

23.1

Consent of Independent Registered Public Accounting Firm.

*

23.2

Consent of Independent Registered Public Accounting Firm.

*

31.1

Chief Executive Officer Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

*

31.2

Chief Financial Officer Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.

*

32.1

Chief Executive Officer Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

*

*

32.2

Chief Financial Officer Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

*

*

101.INS

XBRL Instance Document.

*

101.SCH

XBRL Schema Document.

*

101.CAL

XBRL Calculation Linkbase Document.

*

101.DEF

XBRL Definition Linkbase Document.

*

101.LAB

XBRL Labels Linkbase Document.

*

101.PRE

XBRL Presentation Linkbase Document.

*

† This exhibit constitutes a management contract, compensatory plan, or arrangement.

* Filed herewith

** Furnished herewith

Attached as Exhibit 101 to this report are the following formatted in XBRL (Extensible Business Reporting Language): (i) Consolidated Balance Sheets at December 31, 2014 and December 31, 2013, (ii) Consolidated Statements of Operations for the years ended December 31, 2014, December 31, 2013, and December 31, 2012, (iii) Consolidated Statements of Comprehensive Income (Loss) for the years ended December 31, 2014, December 31, 2013 and December 31, 2012, (iv) Consolidated Statements of Stockholders’ Equity for the years ended December 31, 2014, December 31, 2013, and December 31, 2012, (v) Consolidated Statements of Cash Flows for the years ended December 31, 2014, December 31, 2013, and December 31, 2012, and (vi) Notes to Consolidated Financial Statements.

95

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

GSI GROUP INC.
By:	/s/ John A. Roush
	John A. Roush
	Chief Executive Officer

Date: March 6, 2015

96

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

GSI Group Inc. (Registrant)

Name	Title	Date
/s/ John A. Roush	Director, Chief Executive Officer	March 6, 2015
John A. Roush
/s/ Robert J. Buckley	Chief Financial Officer	March 6, 2015
Robert J. Buckley
/s/ Peter L. Chang	Vice President, Corporate Controller	March 6, 2015
Peter L. Chang	(Chief Accounting Officer)
/s/ Stephen W. Bershad	Chairman of the Board of Directors	March 6, 2015
Stephen W. Bershad
/s/ Harry L. Bosco	Director	March 6, 2015
Harry L. Bosco
/s/ Dennis J. Fortino	Director	March 6, 2015
Dennis J. Fortino
/s/ Ira J. Lamel	Director	March 6, 2015
Ira J. Lamel
/s/ Dominic A. Romeo	Director	March 6, 2015
Dominic A. Romeo
/s/ Thomas N. Secor	Director	March 6, 2015
Thomas N. Secor

97

EX-10.23

Exhibit 10.23

SEVERANCE AGREEMENT AND MUTUAL GENERAL RELEASE

This Severance Agreement and Mutual General Release (the “Agreement”) is made as of this 13th day of January, 2015, by and between GSI Group, Inc. (“GSI”) and Deborah Mulryan (“Mulryan”).

For good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the undersigned parties agree as follows:

1. Termination of Employment.  Mulryan’s employment by GSI shall cease on January 13, 2015 (the “Termination Date”).  As of the Termination Date, Mulryan shall not receive, and shall not be entitled to receipt of, any wage, salary or employment benefits from GSI, except as expressly set forth in paragraphs 2 and 3 of this Agreement.  Mulryan acknowledges that she was paid her final wages and any accrued unused vacation pay on the Termination Date.

2. Severance Payments.  In consideration of Mulryan’s release of all claims, as set forth below, GSI agrees to:

(a) continue Mulryan’s salary through March 31, 2016, subject to regular tax withholdings and deductions, to be paid as part of GSI’s regular payroll;

(b) pay Mulryan $45,500, less applicable withholdings, on GSI’s first regular pay period following the Effective Date, as defined below, on account of the bonus opportunity for which Mulryan would have been eligible had she remained employed through March 31, 2015; and

(c) accelerate the vesting date of all of Mulryan’s unvested Restricted Stock Units (22,472 units) to a date within seven days following the Effective Date.  

3. Health Insurance.  Mulryan may elect to continue receiving health, dental and vision insurance coverage in accordance with COBRA.  She will receive separate notification regarding her COBRA rights, in accordance with applicable law.  If Mulryan elects COBRA, GSI shall directly pay for her full COBRA premiums until her eligibility for COBRA expires.  After her eligibility for COBRA coverage expires, up until the third anniversary of the Termination Date, GSI shall reimburse Mulryan for her actual cost of purchasing health, dental and vision insurance equivalent to GSI’s health, dental and vision insurance, as demonstrated by appropriate documentation, including but not limited to invoices.

4. General Release by Mulryan.  In consideration of GSI’s agreement to provide Mulryan with one-half of the Severance Payments, the COBRA and other health insurance reimbursement set forth above, and GSI’s release of claims against Mulryan below, Mulryan, for herself and her heirs, successors and assigns, hereby remises, releases and forever discharges GSI, and all of its past, present and future officers, directors, principals, agents, servants, representatives, employees and attorneys (the “Releasees”), from any and all claims and causes of action of every name and nature, both in law and equity, whether known or unknown, which she may now have, or in the past may have had, against the Releasees, or any of them, on account of any act, event, neglect, or omission occurring from the beginning of the world to the date of this Agreement, including but not limited to any claims arising out of, or related to, her employment by GSI or the termination of that employment (the “Claims”).  This General Release includes, but is not limited to, any claims under federal, state and local laws that prohibit discrimination (including without limitation, claims of discrimination based on race, religion, national origin, sex, disability or handicap and sexual orientation), any statutory claims with respect to breach of contract (express and/or implied), including but not limited to claims arising under any alleged employment agreement, wrongful termination, intentional or negligent infliction of emotional distress, interference with contractual or advantageous business relations, loss of consortium, invasion of privacy, defamation, payment of wages, vacation pay or any other claims under the Massachusetts Wage Act, M.G.L. c. 149, any debts, costs and expenses, attorneys’ fees and other damages.  This Agreement includes a release of claims Mulryan may have had under her offer of employment dated July 29, 2011.  By entering into this Agreement, Mulryan acknowledges that she has been advised and understands that, except as is expressly provided herein, she is knowingly and voluntarily relinquishing any and all rights she may have to recover damages from the Releasees, or any of them, in her own lawsuit or any lawsuit instituted by another person, entity or agency.

This Agreement shall not be construed to prevent Mulryan from participating in any investigation or proceeding before any state or federal administrative agency, provided, however, that it does and shall operate to prevent Mulryan from receiving or sharing in any relief, remedy, judgment or award resulting from such investigation or proceeding that relates to or arises out of any allegation, action or matter occurring before the date of this Agreement.  The only amount to which Mulryan shall be entitled is the consideration paid to Mulryan pursuant to this Agreement.

-1-

Notwithstanding the foregoing, this release does not include and will not preclude: (a) non-termination related claims under any disability insurance policy/plan; (b) rights to vested benefits under any applicable retirement and/or pension and/or deferred compensation plans; (c) non-termination related rights and claims under the Employee Retirement Income Security Act (29 U.S.C. § 1001 et seq.); (d) rights under the Consolidated Omnibus Budget Reconciliation Act of 1985 (“COBRA”); (e) claims for unemployment compensation; (f) rights to defense and indemnification, if any, from GSI for actions taken by Mulryan in the course and scope of her employment with GSI and its parents, subsidiaries and/or affiliates; and/or (g) claims, actions, or rights arising under or to enforce the terms of this Agreement.  

5. Age Discrimination in Employment Act Release.  In consideration of the obligations of GSI hereunder to Mulryan, and in particular, its agreement to pay the remaining one-half of the Severance Payments set forth in paragraph 2 of this Agreement, Mulryan on her own behalf and on behalf of her heirs, executors, administrators and assigns, hereby fully releases, discharges and covenants not to sue GSI, as well as its past, present and future directors, officers, agents, attorneys, employees, representatives, affiliates, subsidiaries, parent corporations, any related entities, successors and assigns, for any claims she may have had in the absence of this Agreement for employment discrimination based on age under the federal law known as the Age Discrimination in Employment Act, 29 U.S.C. §621, et seq., and comparable state laws, including without limitation M.G.L. c. 151B, §4 and M.G.L. c. 93, §103.  By executing this Agreement, Mulryan does not waive rights or claims under these provisions that may arise after the date this Agreement is executed.

6. General Release by GSI.  In consideration of Mulryan’s releases set forth above, GSI, and all of its past, present and future parent companies, subsidiaries, affiliates, officers, directors, principals, agents, servants, representatives, employees and attorneys, hereby remise, release and forever discharge Mulryan, from any and all claims and causes of action of every name and nature, both in law or in equity, whether known or unknown, which they may now have or in the past may have had against Mulryan, on account of any act, event, neglect or omission occurring from the beginning of the world to the date of this Agreement, including but not limited to any claims arising out of, or related to, Mulryan’s employment by GSI or the termination of that employment (the “Claims”).  This General Release includes, but is not limited to, any claims under federal, state and local laws, any statutory claims, any claims for breach of contract (express and/or implied), any claims for tortious conduct, and any other claims for debts, costs and expenses, attorneys’ fees and other damages.  By entering into this Agreement, GSI acknowledges that it has been advised and understands that, except as is expressly provided herein, it is knowingly and voluntarily relinquishing any and all rights it may have to recover damages from Mulryan.

Notwithstanding the foregoing, this release does not include and will not preclude (a) claims, actions or rights arising under or to enforce the terms of this Agreement, or (b) future claims, actions or rights arising under or to enforce the terms of the Inventions and Non-Disclosure Agreement and Employee Patent and Proprietary Information Utilization, Non-Competition and Non-Solicitation Agreement.

7. Effective Date; Consideration.  Prior to executing this Agreement, Mulryan was advised to consult with an attorney about the terms of this Agreement and was given a period of at least 21 days within which to consider this Agreement.  For a period of seven days following the date this Agreement is executed by Mulryan, Mulryan may revoke the Agreement by hand-delivering to John Roush at GSI within that period of time a written statement to that effect.  This Agreement shall not become effective or enforceable until the day after the seven-day revocation period has expired (the “Effective Date”).

8. No Action Commenced.  The parties represent and warrant that they have not commenced an action or proceeding against each other or any of the other GSI Releasees in any court, or before any administrative agency, and agree that they will not do so in the future for any claims released by the Agreement.

9. Confidentiality and Non-disparagement.  Mulryan agrees to keep confidential and not to disclose the facts or terms of this Agreement to anyone other than her attorney, accountant or spouse (each of whom she shall direct, and who shall agree, to honor the same confidentiality obligation as Mulryan hereunder), and otherwise as required by law. GSI agrees to keep confidential and not to disclose the facts or terms of this Agreement to anyone other than its directors, officers, and attorneys and to employees who have a need to know the terms for purposes of carrying out GSI’s obligations, and as otherwise required by law, including but not limited to the filing of an SEC Form 8-K.  GSI agrees that Mulryan may have reasonable input on the notice to be issued by GSI informing employees of Mulryan’s departure.  Mulryan further agrees that she shall not disparage Releasees, or any of them, in a personal manner, a professional manner or otherwise, and GSI agrees that its directors and officers shall not disparage Mulryan in a personal manner, a professional manner or otherwise.  GSI shall also instruct Leane Sinicki not to disparage Mulryan in a personal manner, a professional manner or otherwise.

10. No Further Employment with GSI.  Mulryan agrees that she shall not apply for employment or be eligible for employment by GSI.  GSI agrees that it will not challenge Mulryan’s application for unemployment compensation, and the reason for termination is job elimination.

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11. No Admissions.  The parties agree and acknowledge that the considerations exchanged herein do not constitute and shall not be construed as constituting an admission of any sort by either party and shall not be used as evidence of liability or wrongdoing on the part of any party to this Agreement.

12. Severability.  The provisions of this Agreement will be deemed severable, and if any part of this Agreement shall be judged invalid, such judgment shall not affect other parts thereof.

13. Complete Agreement.  This Agreement is intended by the parties as a final written expression of their agreement which supersedes any prior written expression of their intent regarding the terms of this Agreement, and it sets forth their entire agreement, provided, however, that the terms under applicable RSU agreements and plans shall remain in full force and effect, and the Employee Invention and Non-Disclosure Agreement and the Employee Patent and Proprietary Information Utilization, Non-Competition and Non-Solicitation Agreement executed by Mulryan shall continue in full force and effect.  The parties warrant that no representation, promise or inducement, other than what is contained in this Agreement, has been offered or made to induce any party to enter into this Agreement.  The parties further represent that they are competent to execute this Agreement and accept full responsibility for its terms.  Mulryan acknowledges that she has executed this Agreement knowingly and voluntarily.  This Agreement may not be amended or modified except by a writing signed by all of the parties to this Agreement.

14. Governing Law.  This Agreement shall be governed by and construed as a contract in accordance with the laws of the Commonwealth of Massachusetts.

15. Multiple Counterparts.  This Agreement may be executed in counterpart or duplicate originals, each having the same force and effect as an original.

16. Paragraph Headings.  The paragraph headings throughout this Agreement are for convenience and reference only and the words therein shall in no way be held to explain, modify, amplify or aid in the interpretation, construction or meaning of the provisions of this Agreement.

IN WITNESS WHEREOF, the undersigned parties, intending to be legally bound, have caused this Agreement to be executed as a sealed instrument and delivered at ____________, Massachusetts, as of this 13th day of January, 2015.

DEBORAH MULRYAN		GSI GROUP, INC.
	/s/ Deborah A. Mulryan		/s/ John A. Roush
			By: John A. Roush
			Title: Chief Executive Officer

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EX-21.1

Exhibit 21.1

GSI GROUP INC. SUBSIDIARIES

Subsidiary	Place of Incorporation
GSI Group Corporation	Michigan
GSI Group Japan Corporation	Japan
GSI Group Singapore Pte. Ltd.	Singapore
GSI Group GmbH	Germany
GSI Group Limited	United Kingdom
Westwind Air Bearings Limited	United Kingdom
GSI Group UK Investments Holding Limited	United Kingdom
GSI Group Precision Technologies (Suzhou) Co., Ltd.	China
GSI Lumonics Asia Pacific Ltd.	Hong Kong
Excel Technology, Inc.	Delaware
Cambridge Technology, Inc.	Massachusetts
Synrad, Inc.	Washington
Photo Research, Inc.	Delaware
Excel Technology (Lanka) Pvt. Ltd.	Sri Lanka
Excel Laser Technology Pvt. Ltd. (1)	India
Excel Technology Asia Sdn. Bhd.	Malaysia
GSI Group Europe GmbH	Germany
GSI Applications Development Pvt. Ltd.	Sri Lanka
GSI Group Italy SRL	Italy
NDS Surgical Imaging K.K.	Japan
NDS Surgical Imaging, LLC	Delaware
NDS Holdings, BV	Netherlands
NDS Surgical Imaging BV	Netherlands
JADAK LLC	New York
JADAK, BV	Netherlands

(1) Excel Laser Technology Pvt. Ltd. is a 50% owned joint venture of Excel Technology Inc., an indirect wholly owned subsidiary of GSI Group Inc.

EX-23.1

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (Nos. 333-180098 and 333-154157) and Form S-8 (No. 333-43080, 333-76849, 333-73666, 333-118320, 333-171260, and 333-194557) of GSI Group Inc. of our report dated March 6, 2015 relating to the consolidated financial statements and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.

/s/ PricewaterhouseCoopers LLP

Boston, Massachusetts

March 6, 2015

EX-23.2

Exhibit 23.2

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in the Registration Statements (Form S-3, Nos. 333-180098 and 333-154157, and Form S-8, Nos. 333-43080, 333-76849, 333-73666, 333-118320, 333-171260, and 333-194557 of our report dated March 18, 2013 (except for Notes 1 and 4, as to which the date is March 6, 2015), with respect to the consolidated financial statements of GSI Group Inc. for the year ended December 31, 2012, included in this Annual Report (Form 10-K) for the year ended December 31, 2014.

/s/ Ernst & Young LLP

Boston, Massachusetts

March 6, 2015

EX-31.1

Exhibit 31.1

CERTIFICATION PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

CERTIFICATION

I, John A. Roush, certify that:

1. I have reviewed this annual report on Form 10-K of GSI Group Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

March 6, 2015

/s/ John A. Roush

John A. Roush

Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

CERTIFICATION

I, Robert J. Buckley, certify that:

1. I have reviewed this annual report on Form 10-K of GSI Group Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5. The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

March 6, 2015

/s/ Robert J. Buckley

Robert J. Buckley

Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of GSI Group Inc. (the “Company”) on Form 10-K for the period ended December 31, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, John A. Roush, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1) the Report fully complies with the requirements of section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ John A. Roush

John A. Roush

Chief Executive Officer

March 6, 2015

This Certification shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, or incorporated by reference into any of the Company’s filings with the Securities and Exchange Commission by implication or by any reference in any such filings to the Report.

A signed original of this written statement required by Section 906 has been provided to GSI Group Inc. and will be retained by GSI Group Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of GSI Group Inc. (the “Company”) on Form 10-K for the period ended December 31, 2014 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Robert J. Buckley, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to the best of my knowledge:

(1) the Report fully complies with the requirements of section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934; and

(2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Robert J. Buckley

Robert J. Buckley

Chief Financial Officer

March 6, 2015

This Certification shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, or incorporated by reference into any of the Company’s filings with the Securities and Exchange Commission by implication or by any reference in any such filings to the Report.

A signed original of this written statement required by Section 906 has been provided to GSI Group Inc. and will be retained by GSI Group Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Components of Income (Loss) from Continuing Operations

Components of the Company’s income (loss) from continuing operations before income taxes are as follows (in thousands):

	Year Ended December 31,
	2014			2013			2012
Income (loss) from continuing operations before income taxes:
Canadian	$	(20,212	)	$	(5,366	)	$	(5,199	)
U.S.		(9,661	)		12,838			18,987
Other		11,958			8,705			2,914
Total	$	(17,915	)	$	16,177		$	16,702

Components of Income Tax Provision (Benefit)

Components of the Company’s income tax provision (benefit) are as follows (in thousands):

	Year Ended December 31,
	2014			2013		2012
Current
Canadian	$	175		$	—	$	—
U.S.		3,615			1,662		3,560
Other		1,940			652		2,275
		5,730			2,314		5,835
Deferred
Canadian		—			—		—
U.S.		(6,731	)		2,206		(14,467	)
Other		(5	)		1,680		(2,963	)
		(6,736	)		3,886		(17,430	)
Total	$	(1,006	)	$	6,200	$	(11,595	)

Reconciliation of Statutory Canadian Income Tax rate to Effective Rate

The reconciliation of the statutory Canadian income tax rate to the effective rate related to income from continuing operations before income taxes is as follows (in thousands, except percentage data):

	Year Ended December 31,
	2014			2013			2012
Statutory Canadian tax rate		27.00	%		26.00	%		25.00	%
Expected income tax provision at statutory Canadian tax rate	$	(4,837	)	$	4,206		$	4,176
International tax rate differences		(1,132	)		156			1,863
Permanent differences		(88	)		106			227
Change in valuation allowance		4,809			(3,076	)		(17,564	)
Prior year provision to return differences		962			(312	)		37
Net operating loss expirations		—			4,538			—
Statutory tax rate change		(13	)		354			316
Uncertain tax positions		134			259			(4,093	)
Tax credits		(1,678	)		(938	)		—
State income taxes, net		(271	)		148			478
IRS audit		241			680			1,846
Withholding and other taxes		421			321			488
Other		116			(242	)		631
Goodwill impairment		330			—			—
Reported income tax provision (benefit)	$	(1,006	)	$	6,200		$	(11,595	)
Effective tax rate		5.6	%		38.3	%		(69.4	)%

Significant Components of Deferred Tax Assets and Liabilities

Significant components of the Company’s deferred tax assets and liabilities as of December 31, 2014 and 2013 are as follows (in thousands):

	December 31,
	2014			2013
Deferred tax assets
Losses & IRC Section 163(j) carryforwards	$	12,742		$	16,059
Compensation related deductions		3,749			2,649
Tax credits		3,502			3,817
Restructuring related liabilities		64			406
Inventory		4,495			4,939
Depreciation		683			938
Amortization		—			—
Warranty		876			888
Other		2,206			824
Total deferred tax assets		28,317			30,520
Valuation allowance for deferred tax assets		(14,495	)		(11,534	)
Net deferred income tax assets	$	13,822		$	18,986
Deferred tax liabilities
Equity investment	$	(1,594	)	$	(1,025	)
Depreciation		(341	)		(583	)
Amortization		(36	)		(11,417	)
Unrealized currency gain/loss		(2,595	)		(983	)
Other		(525	)		(326	)
Total deferred tax liabilities	$	(5,091	)	$	(14,334	)
Net deferred income tax assets (liabilities)	$	8,731		$	4,652

Reconciliation of Total Amounts of Unrecognized Tax Benefits

The reconciliation of the total amounts of unrecognized tax benefits is as follows (in thousands):

Balance at December 31, 2011	$	7,284
Additions based on tax positions related to the current year		2,618
Additions for tax positions of prior years		1,422
Reductions for tax positions of prior years		(481	)
Reductions to tax positions resulting from a lapse of the applicable statute of limitations		(254	)
Settlements with taxation authorities		(3,035	)
Balance at December 31, 2012		7,554
Additions based on tax positions related to the current year		508
Additions for tax positions of prior years		1,475
Reductions for tax positions of prior years		(1,888	)
Reductions to tax positions resulting from a lapse of the applicable statute of limitations		(575	)
Balance at December 31, 2013		7,074
Additions based on tax positions related to the current year		1,180
Additions for tax positions of prior years		2,601
Reductions for tax positions of current years		(2,404	)
Reductions to tax positions resulting from a lapse of the applicable statute of limitations		(2,177	)
Balance at December 31, 2014	$	6,274

Income Tax Returns to be Reviewed

The Company’s income tax returns may be reviewed in the following countries for the following periods under the appropriate statute of limitations:

United States	2009 -  Present
Canada	2007 -  Present
United Kingdom	2013 -  Present
China	2011 -  Present
Japan	2009 -  Present
Germany	2008 -  Present
Netherlands	2009 -  Present

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Summary of Long-lived Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Long-Lived Assets by Geographical Areas [Line Items]
Property, plant and equipment, net	$ 40,088	$ 31,303
UNITED STATES
Long-Lived Assets by Geographical Areas [Line Items]
Property, plant and equipment, net	32,988	23,305
Europe
Long-Lived Assets by Geographical Areas [Line Items]
Property, plant and equipment, net	5,318	5,617
CHINA
Long-Lived Assets by Geographical Areas [Line Items]
Property, plant and equipment, net	1,705	2,196
Asia Pacific And Other Non Us Countries
Long-Lived Assets by Geographical Areas [Line Items]
Property, plant and equipment, net	$ 77	$ 185

XML

Discontinued Operations - Additional Information (Details) (USD $)	3 Months Ended				12 Months Ended			1 Months Ended
	Dec. 31, 2014	Sep. 26, 2014	Sep. 27, 2013	Jun. 28, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jul. 31, 2014	Sep. 27, 2013	Oct. 31, 2012	May 31, 2013
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Gain (Loss) on sale of business, net of tax	$ (1,405,000)	$ (321,000)	$ (281,000)	$ (311,000)	$ (1,726,000)	$ (592,000)	$ 2,255,000
Scientific Lasers Business
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Sale of assets and liabilities								6,500,000
Gain (Loss) on sale of business, net of tax					(1,700,000)
Sale proceeds held in escrow								1,500,000
Sale proceeds held in escrow, Period					2016-01
Discontinued operations write-down value					3,000,000
Excel Laser Technology Private Limited
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Discontinued operations write-down value					500,000
Laser Systems
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Sale of assets and liabilities										7,000,000
Gain (Loss) on sale of business, net of tax							2,300,000		(200,000)
Settlement of closing working capital adjustments			(400,000)						(400,000)
Semiconductor Systems
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items]
Sale of assets and liabilities				8,000,000							9,700,000
Gain (Loss) on sale of business, net of tax				(300,000)		(400,000)			(300,000)
Settlement of closing working capital adjustments			1,700,000						1,700,000
Inventory provision							$ 1,900,000

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Summary of Financial Information of Laser Quantum - Balance Sheet (Details) (Parenthetical) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule Of Financial Statements Information [Line Items]
Cash and cash equivalents	$ 51,146	$ 60,980	$ 65,788	$ 54,835
Laser Quantum
Schedule Of Financial Statements Information [Line Items]
Cash and cash equivalents	$ 17,100	$ 13,600

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Property Plant and Equipment, Net (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 96,709	$ 85,155
Accumulated depreciation	(56,621)	(53,852)
Property, plant and equipment, net	40,088	31,303
Land, Buildings and Improvements
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	46,222	37,048
Machinery and Equipment
Property Plant And Equipment [Line Items]
Property, plant and equipment, gross	$ 50,487	$ 48,107

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Components of Assets and Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Discontinued Operations And Disposal Groups [Abstract]
Accounts receivable, net	$ 95	$ 5,361
Inventories	161	8,454
Other assets	375	4,021
Assets of discontinued operations	631	17,836
Accounts payable	16	2,393
Accrued expenses and other current liabilities	74	2,332
Other liabilities	234	1,418
Liabilities of discontinued operations	$ 324	$ 6,143

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Debt - Additional Information (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended		12 Months Ended
	Dec. 27, 2012	Sep. 13, 2013	Dec. 31, 2014	Feb. 10, 2014
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 125.0
Revolving credit facility maturity year	2017-12
Credit facility accordion feature		50.0
Third Amendment
Debt Instrument [Line Items]
Credit facility accordion feature		100.0
Maximum consolidated leverage ratio		275.00%
Fourth Amendment
Debt Instrument [Line Items]
Maximum consolidated leverage ratio			300.00%
Restricted Payments | Fourth Amendment
Debt Instrument [Line Items]
Maximum consolidated leverage ratio		225.00%	250.00%
Eurodollar Rate | Minimum
Debt Instrument [Line Items]
Variable interest rate			2.00%
Eurodollar Rate | Maximum
Debt Instrument [Line Items]
Variable interest rate			3.00%
Base Rate | Minimum
Debt Instrument [Line Items]
Variable interest rate			1.00%
Base Rate | Maximum
Debt Instrument [Line Items]
Variable interest rate			2.00%
Revolving Credit Facility
Debt Instrument [Line Items]
Maximum borrowing capacity	75.0
Debt instrument maturity period	5 years
Available for borrowings capacity			95.0
Revolving Credit Facility | Fourth Amendment
Debt Instrument [Line Items]
Maximum borrowing capacity				175.0
Credit facility accordion feature			100.0
Revolving Credit Facility | Minimum
Debt Instrument [Line Items]
Unused Commitment Fees Percentage			0.25%
Revolving Credit Facility | Maximum
Debt Instrument [Line Items]
Unused Commitment Fees Percentage			0.625%
Term Loans
Debt Instrument [Line Items]
Maximum borrowing capacity	50.0
Debt instrument maturity period	5 years
Senior Secured Credit Facility
Debt Instrument [Line Items]
Debt instrument interest rate			2.90%
Limitations on restricted payments, minimum available for borrowing			25.0

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Commitments and Contingencies - Additional Information (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014 Customer	Dec. 31, 2013 Customer	Dec. 31, 2012
Commitments And Contingencies Disclosure [Line Items]
Lease expense	$ 4.1	$ 4.9	$ 4.1
Asset capitalized under capital lease	10.4
Unconditional purchase commitments	51.0
Unconditional purchase commitments, 2015	49.5
Unconditional purchase commitments, 2016	1.2
Unconditional purchase commitments, 2017	$ 0.3
Number of customer accounted on accounts receivable balance	1
Number of customers accounted for 10% or more of accounts receivable	0	0
Minimum
Commitments And Contingencies Disclosure [Line Items]
Lease agreement expiration year	2015
Maximum
Commitments And Contingencies Disclosure [Line Items]
Lease agreement expiration year	2019
Land | Maximum
Commitments And Contingencies Disclosure [Line Items]
Lease agreement expiration year	2078

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Summary of Financial Information of Laser Quantum - Income Statement (Details) (Laser Quantum, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Laser Quantum
Schedule Of Financial Statements Information [Line Items]
Sales	$ 23,013	$ 16,269	$ 13,039
Income from operations	7,434	4,720	3,592
Net income	$ 6,627	$ 3,745	$ 2,215

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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value of Asset and Liabilities Measured on Recurring and Nonrecurring Basis

The following table summarizes the fair values of our financial assets as of December 31, 2014 (in thousands):

			Quoted Prices in				Significant Other
			Active Markets for		Significant Other		Unobservable
			Identical Assets		Observable Inputs		Inputs
	Fair Value		(Level 1)		(Level 2)		(Level 3)
Assets
Cash equivalents	$	2,255	$	2,255	$	—	$	—

The following table summarizes the fair values of our financial assets as of December 31, 2013 (in thousands):

			Quoted Prices in				Significant Other
			Active Markets for		Significant Other		Unobservable
			Identical Assets		Observable Inputs		Inputs
	Fair Value		(Level 1)		(Level 2)		(Level 3)
Assets
Cash equivalents	$	3,078	$	3,078	$	—	$	—

The following table summarizes assets and liabilities that were measured at fair value on a non-recurring basis during 2012 (in thousands):

	Quoted Prices in		Significant		Significant
	Active Markets		Other		Other
	for Identical		Observable		Unobservable
	Assets		Inputs		Inputs		Total
	(Level 1)		(Level 2)		(Level 3)		Losses
Facility impairment	$	—	$	—	$	856	$	856

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Principal Repayments on Outstanding Term Loan (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Long Term Debt Maturities Repayments Of Principal [Line Items]
Total debt repayments	$ 115,000	$ 71,500
Term Loans
Long Term Debt Maturities Repayments Of Principal [Line Items]
2015	7,500
2016	7,500
2017	20,000
Total debt repayments	$ 35,000

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Summary of Total Accumulated Depreciation on Assets under Capital Leases (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Accumulated depreciation on assets under capital leases	$ 2,741	$ 1,653	$ 861

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Expected Future Benefit Payments (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
UNITED KINGDOM
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
2015	$ 827
2016	974
2017	1,092
2018	900
2019	1,290
2020-2024	8,097
Total	13,180
JAPAN
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
2015	514
2016	76
2017	76
2018	75
Total	$ 741

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Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	$ (6,342)		$ (9,749)		$ (5,024)
Other comprehensive income (loss)	(10,488)		2,686		(6,973)
Amounts reclassified from other comprehensive income (loss)	374	[1]	721	[1]	2,248	[1]
Ending Balance	(16,456)		(6,342)		(9,749)
Foreign currency translation adjustments
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	1,353		1,299		2,809
Other comprehensive income (loss)	(6,968)		54		(3,020)
Amounts reclassified from other comprehensive income (loss)					1,510	[1]
Ending Balance	(5,615)		1,353		1,299
Pension liability
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning Balance	(7,695)		(11,048)		(7,833)
Other comprehensive income (loss)	(3,520)		2,632		(3,953)
Amounts reclassified from other comprehensive income (loss)	374	[1]	721	[1]	738	[1]
Ending Balance	$ (10,841)		$ (7,695)		$ (11,048)

[1] (1) The amounts reclassified from other comprehensive income (loss) were included in selling, general and administrative expenses in the consolidated statements of operations.

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Operating Income (Loss) from Continuing Operations by Reportable Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 31, 2013	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Operating Income (Loss)
Operating Income (Loss)	$ (34,176)	$ 6,822	$ 6,480	$ 4,068	$ 6,795	$ 5,799	$ 5,390	$ 1,462	$ (16,806)	$ 19,446	$ 20,262
Laser Products
Operating Income (Loss)
Operating Income (Loss)									33,053	25,143	24,480
Medical Technologies
Operating Income (Loss)
Operating Income (Loss)									(43,079)	3,566	8,285
Precision Motion
Operating Income (Loss)
Operating Income (Loss)									13,023	12,062	9,482
Corporate, Shared Services and Unallocated
Operating Income (Loss)
Operating Income (Loss)									$ (19,803)	$ (21,325)	$ (21,985)

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Summary of Other Long Term Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Other Liabilities Disclosure [Abstract]
Capital lease obligations	$ 9,507
Accrued pension liabilities	6,037	2,322
Other	3,275	2,706
Total	$ 18,819	$ 5,028

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Actuarial Assumptions used to Compute Net Periodic Pension Cost for U.K. Plan and Japan Plan (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
UNITED KINGDOM
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted-average discount rate	4.60%	4.30%	4.90%
Weighted-average long-term rate of return on plan assets	5.90%	5.70%	5.00%
JAPAN
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted-average discount rate	1.00%	1.30%	1.20%
Weighted-average rate of compensation increase	3.00%	3.00%	3.00%
Weighted-average long-term rate of return on plan assets	1.00%	1.00%

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Restricted Stock Units Issued and Outstanding (Details) (2010 Incentive Award Plan, Restricted Stock Units (RSUs), USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014
2010 Incentive Award Plan | Restricted Stock Units (RSUs)
Restricted Stock Units
Unvested, Beginning Balance	809,000
Granted	338,000
Vested	(361,000)
Forfeited	(37,000)
Unvested, Ending Balance	749,000
Expected to vest at end of period	734,000
Weighted Average Grant Date Fair Value
Unvested, Beginning Balance	$ 10.20
Granted	$ 12.26
Vested	$ 10.79
Forfeited	$ 11.06
Unvested, Ending Balance	$ 10.80
Expected to vest at end of period	$ 10.80
Weighted Average Remaining Vesting Period (in years)
Unvested at end of period	1 year 9 months 26 days
Expected to vest at end of period	1 year 9 months 26 days
Aggregate Intrinsic Value
Unvested at end of period	$ 11,019	[1]
Expected to vest at end of period	$ 10,797	[1]

[1] The aggregate intrinsic value is calculated based on the fair value of $14.72 per share of the Company’s common stock on December 31, 2014 due to the fact that the restricted stock units carry a $0 purchase price.

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Actuarial Assumptions used to Compute Funded Status for U.K. Plan and Japan Plan (Details)	Dec. 31, 2014	Dec. 31, 2013
UNITED KINGDOM
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted-average discount rate	3.50%	4.60%
Rate of inflation	3.60%	2.70%
JAPAN
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Weighted-average discount rate		1.00%
Weighted-average rate of compensation increase		3.00%

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Debt (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Current portion of long-term debt	$ 7,500	$ 7,500
Long-term debt	107,500	64,000
Total Senior Credit Facilities	115,000	71,500
Term Loans
Debt Instrument [Line Items]
Current portion of long-term debt	7,500	7,500
Long-term debt	27,500	35,000
Total Senior Credit Facilities	35,000
Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt	$ 80,000	$ 29,000

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Supplementary Balance Sheet Information - Additional Information (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Asset capitalized under capital lease	$ 10.4
Capitalized software development costs	$ 0.2	$ 0.2	$ 0.6

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Subsequent Events

12 Months Ended

Dec. 31, 2014

Subsequent Events [Abstract]

Subsequent Events

17. Subsequent Events

On February 19, 2015, the Company acquired Applimotion Inc. (“Applimotion”), a Loomis, California-based provider of advanced precision motor and motion control technology to OEMs for advanced industrial and medical markets, for $13.9 million in cash, subject to customary working capital adjustments. Applimotion specializes in motor applications that require highly precise and dynamic motion control. The acquisition enhances the Company’s strategic position in precision motion control by enabling the Company to offer a broader range of motion control technologies and integrated solutions.  The Applimotion business will be integrated into the Company’s optical encoders business line, which is part of the Company’s Precision Motion segment. Information required by ASC 805-10, “Business Combinations,” was not disclosed herein as the Company is in process of completing its purchase price allocation.

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Business Combinations - Additional Information (Details) (USD $)	12 Months Ended			0 Months Ended		1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 14, 2014	Jan. 15, 2013	Sep. 30, 2014
Business Acquisition [Line Items]
Goodwill	$ 90,746,000	$ 71,156,000
Total purchase price, net of cash acquired	88,238,000	80,773,000
Recognized acquisition costs	1,521,000	1,630,000	791,000
JADAK Acquisition
Business Acquisition [Line Items]
Membership interests acquired				100.00%
Sales	45,400,000
Income from continuing operations before income taxes	2,700,000
Goodwill				44,584,000
Intangible assets				40,250,000
Goodwill and intangible assets expected to be deductible for tax purposes				61,800,000
Total purchase price, net of cash acquired				93,656,000
JADAK, LLC
Business Acquisition [Line Items]
Membership interests acquired				100.00%
Acquisition of business, cash consideration				93,700,000
JADAK Technologies, Inc
Business Acquisition [Line Items]
Membership interests acquired				100.00%
Advanced Data Capture Corporation
Business Acquisition [Line Items]
Membership interests acquired				100.00%
NDS Surgical Imaging, LLC
Business Acquisition [Line Items]
Membership interests acquired					100.00%
NDS Surgical Imaging KK
Business Acquisition [Line Items]
Membership interests acquired					100.00%
NDS Acquisition
Business Acquisition [Line Items]
Acquisition of business, cash consideration					80,800,000
Sales		68,400,000
Income from continuing operations before income taxes		3,400,000
Goodwill					21,160,000
Intangible assets					37,817,000
Escrow after the payments of closing working capital adjustments					5,400,000
Escrow recovery was accounted for as a reduction to goodwill						5,400,000
Total purchase price, net of cash acquired						75,400,000
JADAK and NDS
Business Acquisition [Line Items]
Recognized acquisition costs	$ 700,000	$ 1,500,000	$ 700,000

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Segment Information (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Sales, Gross Profit, Operating Income (Loss) from Continuing Operations, and Depreciation and Amortization by Reportable Segments

Sales, gross profit, operating income (loss) from continuing operations, and depreciation and amortization by reportable segments are as follows (in thousands):

	Year Ended December 31,
	2014		2013		2012
Sales
Laser Products	$	177,726	$	166,598	$	158,639
Medical Technologies		122,187		90,276		25,915
Precision Motion		64,793		60,036		59,242
Total	$	364,706	$	316,910	$	243,796

	Year Ended December 31,
	2014			2013			2012
Gross Profit
Laser Products	$	74,224		$	68,819		$	66,498
Medical Technologies		48,678			35,824			13,149
Precision Motion		28,333			27,778			26,796
Corporate, Shared Services and Unallocated		(1,068	)		(194	)		(925	)
Total	$	150,167		$	132,227		$	105,518

	Year Ended December 31,
	2014			2013			2012
Operating Income (Loss) from Continuing Operations
Laser Products	$	33,053		$	25,143		$	24,480
Medical Technologies		(43,079	)		3,566			8,285
Precision Motion		13,023			12,062			9,482
Corporate, Shared Services and Unallocated		(19,803	)		(21,325	)		(21,985	)
Total	$	(16,806	)	$	19,446		$	20,262

	Year Ended December 31,
	2014		2013		2012
Depreciation and Amortization
Laser Products	$	6,481	$	6,335	$	6,448
Medical Technologies		13,254		8,808		702
Precision Motion		1,943		1,979		2,066
Corporate, Shared Services and Unallocated		2,743		2,828		3,467
Total	$	24,421	$	19,950	$	12,683

Schedule of Geographic Sales

The Company aggregates geographic sales based on the customer location where products are shipped. Sales to these customers are as follows (in thousands, except percentage data):

	Year Ended December 31,
	2014					2013					2012
	Sales		% of Total			Sales		% of Total			Sales		% of Total
United States	$	140,973		38.7	%	$	107,892		34.0	%	$	76,437		31.4	%
Germany		59,029		16.2			56,287		17.8			32,822		13.5
Rest of Europe		54,308		14.9			45,698		14.4			41,466		17.0
China		40,792		11.2			37,651		11.9			21,001		8.6
Rest of Asia-Pacific		58,830		16.1			57,802		18.2			65,262		26.8
Other		10,774		2.9			11,580		3.7			6,808		2.7
Total	$	364,706		100.0	%	$	316,910		100.0	%	$	243,796		100.0	%

Summary of Long-lived Assets

Long-lived assets consist of property, plant and equipment, net, and are aggregated based on the location of the assets. A summary of these long-lived assets is as follows (in thousands):

	December 31,
	2014		2013
United States	$	32,988	$	23,305
Europe		5,318		5,617
China		1,705		2,196
Asia-Pacific and other		77		185
Total	$	40,088	$	31,303

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Accrued Warranty (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Product Warranties Disclosures [Abstract]
Balance at beginning of year	$ 3,315	$ 2,204
Provision charged to cost of sales	1,684	1,891
Acquisition related warranty accrual	90	998
Use of provision	(2,003)	(1,804)
Foreign currency exchange rate changes	(42)	26
Balance at end of year	$ 3,044	$ 3,315

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Reconciliation of Total Amounts of Unrecognized Tax Benefits (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Beginning balance of unrecognized tax benefits	$ 7,074	$ 7,554	$ 7,284
Additions based on tax positions related to the current year	1,180	508	2,618
Additions for tax positions of prior years	2,601	1,475	1,422
Reductions for tax positions of prior years		(1,888)	(481)
Reductions for tax positions of current years	(2,404)
Reductions to tax positions resulting from a lapse of the applicable statute of limitations	(2,177)	(575)	(254)
Settlements with taxation authorities			(3,035)
Ending balance of unrecognized tax benefits	$ 6,274	$ 7,074	$ 7,554

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Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2014

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Share Based Compensation Expense Recorded In Income from Continuing Operations in Statements of Operations

The table below summarizes share-based compensation expense recorded in income from continuing operations (in thousands):

	Year Ended December 31,
	2014		2013		2012
Selling, general and administrative	$	3,967	$	5,144	$	4,339
Research and development and engineering		196		180		112
Cost of sales		166		118		83
Restructuring and acquisition related costs		322		125		51
Total share-based compensation expense	$	4,651	$	5,567	$	4,585

2010 Incentive Award Plan

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Restricted Stock Issued and Outstanding

The table below summarizes activities relating to restricted stock units issued and outstanding under the 2010 Incentive Plan during year ended December 31, 2014:

	Restricted Stock Units (In thousands)			Weighted Average Grant Date Fair Value		Weighted Average Remaining Vesting Period in Years	Aggregate Intrinsic Value (1) (In thousands)
Unvested at December 31, 2013		809		$	10.20
Granted		338		$	12.26
Vested		(361	)	$	10.79
Forfeited		(37	)	$	11.06
Unvested at December 31, 2014		749		$	10.80	1.82 years	$	11,019
Expected to vest as of December 31, 2014		734		$	10.80	1.82 years	$	10,797

(1) The aggregate intrinsic value is calculated based on the fair value of $14.72 per share of the Company’s common stock on December 31, 2014 due to the fact that the restricted stock units carry a $0 purchase price.

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Fair Value of Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	0 Months Ended
	Mar. 14, 2014	Jan. 15, 2013
JADAK Acquisition
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets	$ 40,250
JADAK Acquisition | Customer Relationships
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets	23,570
Amortization Period of intangible assets	20 years
JADAK Acquisition | Developed Technology
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets	10,910
Amortization Period of intangible assets	10 years
JADAK Acquisition | Trademarks and Trade Names
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets	2,130
Amortization Period of intangible assets	10 years
JADAK Acquisition | Backlog
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets	1,810
Amortization Period of intangible assets	1 year
JADAK Acquisition | Non-compete Covenant
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets	1,830
Amortization Period of intangible assets	5 years
NDS Acquisition
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets		37,817
NDS Acquisition | Customer Relationships
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets		22,294
Amortization Period of intangible assets		20 years
NDS Acquisition | Developed Technology
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets		6,689
Amortization Period of intangible assets		10 years
NDS Acquisition | Trademarks and Trade Names
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets		7,565
Amortization Period of intangible assets		20 years
NDS Acquisition | Backlog
Acquired Finite Lived Intangible Assets [Line Items]
Intangible assets		$ 1,269
Amortization Period of intangible assets		1 year

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Computation of Basic and Diluted Earnings (Loss) Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 31, 2013	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Dec. 31, 2014	Dec. 31, 2013		Dec. 31, 2012
Numerators:
Income (loss) from continuing operations	$ (28,290)	$ 5,119	$ 3,406	$ 2,856	$ 4,699	$ 2,244	$ 1,285	$ 1,749	$ (16,909)	$ 9,977		$ 28,297
Consolidated loss from discontinued operations	(790)	(273)	(2,678)	(1,866)	(411)	(185)	(1,827)	369	(7,333)	(2,646)		(8,719)
Less: income attributable to noncontrolling interest			(3)	(7)	20	12	(18)	(36)	(10)	(22)		(40)
Loss from discontinued operations attributable to GSI Group Inc.									(7,343)	(2,668)		(8,759)
Net income (loss) attributable to GSI Group Inc.	$ (30,485)	$ 4,525	$ 725	$ 983	$ 4,308	$ 1,790	$ (871)	$ 2,082	$ (24,252)	$ 7,309		$ 19,538
Denominators:
Weighted average common shares outstanding—basic									34,352	34,073		33,775
Dilutive potential common shares										323	[1]	161	[1]
Weighted average common shares outstanding— diluted									34,352	34,396		33,936
Antidilutive common shares excluded from above									439	246		244
Basic Earnings (Loss) per Common Share:
From continuing operations	$ (0.82)	$ 0.15	$ 0.10	$ 0.08	$ 0.14	$ 0.07	$ 0.03	$ 0.05	$ (0.49)	$ 0.29		$ 0.84
From discontinued operations	$ (0.06)	$ (0.02)	$ (0.08)	$ (0.05)	$ (0.01)	$ (0.02)	$ (0.06)	$ 0.01	$ (0.21)	$ (0.08)		$ (0.26)
Basic earnings per share attributable to GSI Group Inc.	$ (0.88)	$ 0.13	$ 0.02	$ 0.03	$ 0.13	$ 0.05	$ (0.03)	$ 0.06	$ (0.70)	$ 0.21		$ 0.58
Diluted Earnings (Loss) per Common Share:
From continuing operations	$ (0.82)	$ 0.15	$ 0.10	$ 0.08	$ 0.14	$ 0.07	$ 0.03	$ 0.05	$ (0.49)	$ 0.29		$ 0.84
From discontinued operations	$ (0.06)	$ (0.02)	$ (0.08)	$ (0.05)	$ (0.01)	$ (0.02)	$ (0.06)	$ 0.01	$ (0.21)	$ (0.08)		$ (0.26)
Diluted earnings per share attributable to GSI Group Inc.	$ (0.88)	$ 0.13	$ 0.02	$ 0.03	$ 0.13	$ 0.05	$ (0.03)	$ 0.06	$ (0.70)	$ 0.21		$ 0.58

[1] Due to the Company’s net loss position for the year ended December 31, 2014, all potentially dilutive shares are excluded as their effect would have been anti-dilutive.

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Schedule of Geographic Sales (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 31, 2013	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Sales	$ 94,012	$ 94,656	$ 96,905	$ 79,133	$ 82,212	$ 79,858	$ 79,769	$ 75,071	$ 364,706	$ 316,910	$ 243,796
Percentage of Total									100.00%	100.00%	100.00%
UNITED STATES
Segment Reporting Information [Line Items]
Sales									140,973	107,892	76,437
Percentage of Total									38.70%	34.00%	31.40%
GERMANY
Segment Reporting Information [Line Items]
Sales									59,029	56,287	32,822
Percentage of Total									16.20%	17.80%	13.50%
Rest Of Europe
Segment Reporting Information [Line Items]
Sales									54,308	45,698	41,466
Percentage of Total									14.90%	14.40%	17.00%
CHINA
Segment Reporting Information [Line Items]
Sales									40,792	37,651	21,001
Percentage of Total									11.20%	11.90%	8.60%
Rest of Asia-Pacific
Segment Reporting Information [Line Items]
Sales									58,830	57,802	65,262
Percentage of Total									16.10%	18.20%	26.80%
Other Countries
Segment Reporting Information [Line Items]
Sales									$ 10,774	$ 11,580	$ 6,808
Percentage of Total									2.90%	3.70%	2.70%

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Goodwill By Reportable Segment (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Goodwill [Line Items]
Goodwill	$ 241,975	$ 202,810
Accumulated impairment of goodwill	(151,229)	(131,654)
Total	90,746	71,156
Laser Products
Goodwill [Line Items]
Goodwill	132,954	132,954
Accumulated impairment of goodwill	(102,461)	(102,461)
Total	30,493	30,493
Medical Technologies
Goodwill [Line Items]
Goodwill	82,730	43,565
Accumulated impairment of goodwill	(31,722)	(12,147)
Total	51,008	31,418
Precision Motion
Goodwill [Line Items]
Goodwill	26,291	26,291
Accumulated impairment of goodwill	(17,046)	(17,046)
Total	$ 9,245	$ 9,245

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Summary of Financial Information of Laser Quantum - Balance Sheet (Details) (Laser Quantum, USD $) In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013
Laser Quantum
Schedule Of Financial Statements Information [Line Items]
Total assets	$ 25,423	[1]	$ 20,990	[1]
Total liabilities	$ 2,482		$ 4,240

[1] Total assets at December 31, 2014 and 2013 include cash and cash equivalent of $17.1 million and $13.6 million, respectively.

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Organization and Presentation

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Organization and Presentation

1. Organization and Presentation

GSI Group Inc. and its subsidiaries (collectively referred to as the “Company”, “we”, “us”, “our”) design, develop, manufacture and sell precision photonic and motion control components and subsystems primarily to original equipment manufacturers (“OEM’s”) in the medical equipment and advanced industrial technology markets. Our highly engineered enabling technologies include laser sources, laser scanning and beam delivery products, optical data collection and machine vision technologies, medical visualization and informatics solutions, and precision motion control products. We specialize in collaborating with OEM customers to adapt our component and subsystem technologies to deliver highly differentiated performance in their applications.

Basis of Presentation

These consolidated financial statements have been prepared by the Company in U.S. dollars and in accordance with U.S. generally accepted accounting principles, applied on a consistent basis.

Basis of Consolidation

The consolidated financial statements include the accounts of GSI Group Inc. and its wholly owned subsidiaries. Intercompany accounts and transactions have been eliminated. The Company’s 50% owned joint venture, Excel Laser Technology Private Limited (the “India JV”), has been consolidated since it is a variable interest entity and the Company is considered the primary beneficiary of the joint venture. The India JV is reported as discontinued operations in the Company’s consolidated financial statements because it was part of the Scientific Lasers business that the Company divested in July 2014. The Company records noncontrolling interest in its consolidated statements of operations for the ownership interest of the minority owners of the India JV. Financial information related to the joint venture is not considered material to the consolidated financial statements. The Company is currently in negotiations with the joint venture partner to dissolve the joint venture.

The Company accounts for investments in businesses in which it owns between 20% and 50% using the equity method.

Reclassifications

In the first quarter of 2014, the Company’s Board of Directors committed to a plan to sell the Scientific Lasers business which sold products and services under the Continuum brand name within the Laser Products segment. The Company determined that the asset held-for-sale criteria were satisfied and began to report the Scientific Lasers business as discontinued operations in the first quarter of 2014. As a result, prior period information related to the business has been reclassified into discontinued operations to conform to current period presentation. The discontinued business has been excluded from the following Notes to Consolidated Financial Statements unless otherwise stated. See Note 4 to Consolidated Financial Statements for further information on discontinued operations.

Bankruptcy

In 2008, the Company did not file its quarterly report on Form 10-Q for the quarter ended September 26, 2008 within the time period required by the rules and regulations of the Securities and Exchange Commission (“SEC”) as a result of errors discovered by the Company in its application of revenue recognition standards concerning multiple-element revenue arrangements. The delay in the quarterly report on Form 10-Q caused a noncompliance with a covenant in the indenture governing the $210.0 million of 11% unsecured senior notes due 2013 (the “2008 Senior Notes”). On June 30, 2009, the Company reached an agreement with certain beneficial owners holding greater than 75% of the outstanding aggregate principal amount of the 2008 Senior Notes on a non-binding term sheet to consensually restructure the outstanding obligations under the 2008 Senior Notes. Between December 2008 and March 2009, the Company announced that it had discovered material errors related to its revenue recognition affecting 2004 through 2008 and that the annual reports for 2006, 2007 and 2008 and quarterly reports through the second quarter of 2008 should not be relied upon. In November 2009, the NASDAQ announced that the Company’s common stock was delisted and ceased trading on the NASDAQ Global Select Market as a result of the continued delays in the Company’s periodic filings with the SEC.

On November 20, 2009 (the “Petition Date”), GSI Group Inc. and two of its United States subsidiaries filed voluntary petitions for relief under Chapter 11 of the Bankruptcy Code in the United States Bankruptcy Court for the District of Delaware (the “Bankruptcy Court”) (the “Chapter 11 Cases”). Following the Petition Date, the Company continued to operate its business as “debtors-in-possession” in accordance with the applicable provisions of the Bankruptcy Code and orders of the Bankruptcy Court. In late December 2009, the United States trustee overseeing the Chapter 11 Cases appointed an Official Committee of Equity Security Holders (the “Equity Committee”) to represent the interests of the Company’s equity holders. In May 2010, the Company filed the final Chapter 11 reorganization plan (the “Final Chapter 11 Plan”) with the Bankruptcy Court.

On July 23, 2010 (the “Effective Date”), the Company successfully emerged from bankruptcy as a reorganized company pursuant to the Final Chapter 11 Plan. The Final Chapter 11 Plan deleveraged the Company’s balance sheet by reducing debt and increasing stockholders’ equity. The financial restructuring was accomplished through a debt-for-equity exchange and by using the proceeds from a shareholder rights offering and cash on hand to reduce outstanding indebtedness.

The Chapter 11 Cases were closed on September 2, 2011, and the Company no longer has any legal or material financial constraint relating to those cases.

Listing of Common Shares

The Company’s common shares were approved for listing on The NASDAQ Global Select Market on February 9, 2011 and began trading on February 14, 2011 under the symbol “GSIG”.

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Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	$ 155,127	$ 138,732
Amortizable intangible assets, accumulated amortization	(100,912)	(86,466)
Amortizable intangible assets, net carrying amount	54,215	52,266
Amortizable intangible assets, weighted average remaining life (Years)	11 years 9 months 18 days	12 years 3 months 18 days
Non-amortizable intangible assets	13,027	13,027
Gross carrying amount	168,154	151,759
Net carrying amount	67,242	65,293
Patents and acquired technology
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	78,253	68,500
Amortizable intangible assets, accumulated amortization	(62,010)	(56,327)
Amortizable intangible assets, net carrying amount	16,243	12,173
Amortizable intangible assets, weighted average remaining life (Years)	7 years 6 months	5 years 3 months 18 days
Customer Relationships
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	63,029	55,585
Amortizable intangible assets, accumulated amortization	(31,531)	(24,340)
Amortizable intangible assets, net carrying amount	31,498	31,245
Amortizable intangible assets, weighted average remaining life (Years)	14 years 8 months 12 days	13 years 10 months 24 days
Customer Backlog
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	1,810	1,269
Amortizable intangible assets, accumulated amortization	(1,641)	(1,269)
Amortizable intangible assets, net carrying amount	169
Amortizable intangible assets, weighted average remaining life (Years)	2 months 12 days	0 years
Non-compete Covenant
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	1,830
Amortizable intangible assets, accumulated amortization	(366)
Amortizable intangible assets, net carrying amount	1,464
Amortizable intangible assets, weighted average remaining life (Years)	4 years 2 months 12 days
Trademarks and Trade Names
Schedule of Intangible Assets Disclosure [Line Items]
Amortizable intangible assets, gross carrying amount	10,205	13,378
Amortizable intangible assets, accumulated amortization	(5,364)	(4,530)
Amortizable intangible assets, net carrying amount	$ 4,841	$ 8,848
Amortizable intangible assets, weighted average remaining life (Years)	9 years 9 months 18 days	16 years 4 months 24 days

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Supplementary Information (Tables)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Quarterly Financial Information

The following tables reflect the Company’s unaudited condensed consolidated statements of operations (in thousands except per share data):

	Three Months Ended
	December 31,			September 26,			June 27,			March 28,
	2014			2014			2014			2014
Sales	$	94,012		$	94,656		$	96,905		$	79,133
Cost of goods sold		54,284			54,973			58,254			47,028
Gross profit		39,728			39,683			38,651			32,105
Operating expenses:
Research and development and engineering		7,837			7,735			7,525			5,857
Selling, general and administrative		21,840			21,512			21,410			19,618
Amortization of purchased intangible assets		2,799			2,843			2,876			1,744
Restructuring and acquisition related costs		(14	)		771			360			818
Impairment of goodwill and intangible assets		41,442			—			—			—
Total operating expenses		73,904			32,861			32,171			28,037
Operating income (loss) from continuing operations		(34,176	)		6,822			6,480			4,068
Interest income (expense), foreign exchange transaction gains (losses) and other income (expense), net		(127	)		310			(1,017	)		(275	)
Income (loss) from continuing operations before income taxes		(34,303	)		7,132			5,463			3,793
Income tax provision		(6,013	)		2,013			2,057			937
Income (loss) from continuing operations		(28,290	)		5,119			3,406			2,856
Loss from discontinued operations, net of tax		(790	)		(273	)		(2,678	)		(1,866	)
Loss on disposal of discontinued operations, net of tax		(1,405	)		(321	)		—			—
Consolidated net income (loss)		(30,485	)		4,525			728			990
Less: Net income attributable to noncontrolling interest		—			—			(3	)		(7	)
Net income (loss) attributable to GSI Group Inc.	$	(30,485	)	$	4,525		$	725		$	983
Earnings (loss) per common share from continuing operations:
Basic	$	(0.82	)	$	0.15		$	0.10		$	0.08
Diluted	$	(0.82	)	$	0.15		$	0.10		$	0.08
Loss per common share from discontinued operations:
Basic	$	(0.06	)	$	(0.02	)	$	(0.08	)	$	(0.05	)
Diluted	$	(0.06	)	$	(0.02	)	$	(0.08	)	$	(0.05	)
Earnings (loss) per common share attributable to GSI Group Inc.
Basic	$	(0.88	)	$	0.13		$	0.02		$	0.03
Diluted	$	(0.88	)	$	0.13		$	0.02		$	0.03

	Three Months Ended
	December 31,			September 27,			June 28,			March 29,
	2013			2013			2013			2013
Sales	$	82,212		$	79,858		$	79,769		$	75,071
Cost of goods sold		48,016			45,697			46,530			44,440
Gross profit		34,196			34,161			33,239			30,631
Operating expenses:
Research and development and engineering		5,825			6,031			6,115			5,816
Selling, general and administrative		19,268			19,006			19,374			18,689
Amortization of purchased intangible assets		1,645			1,772			1,617			2,236
Restructuring and acquisition related costs		663			1,553			743			2,428
Total operating expenses		27,401			28,362			27,849			29,169
Operating income from continuing operations		6,795			5,799			5,390			1,462
Interest income (expense), foreign exchange transaction gains (losses) and other income (expense), net		(850	)		(2,022	)		(1,087	)		690
Income from continuing operations before income taxes		5,945			3,777			4,303			2,152
Income tax provision		1,246			1,533			3,018			403
Income from continuing operations		4,699			2,244			1,285			1,749
Income (loss) from discontinued operations, net of tax		(411	)		(185	)		(1,827	)		369
Loss on disposal of discontinued operations, net of tax		—			(281	)		(311	)		—
Consolidated net income (loss)		4,288			1,778			(853	)		2,118
Less: Net (income) loss attributable to noncontrolling interest		20			12			(18	)		(36	)
Net income (loss) attributable to GSI Group Inc.	$	4,308		$	1,790		$	(871	)	$	2,082
Earnings per common share from continuing operations:
Basic	$	0.14		$	0.07		$	0.03		$	0.05
Diluted	$	0.14		$	0.07		$	0.03		$	0.05
Earnings (loss) per common share from discontinued operations:
Basic	$	(0.01	)	$	(0.02	)	$	(0.06	)	$	0.01
Diluted	$	(0.01	)	$	(0.02	)	$	(0.06	)	$	0.01
Earnings (loss) per common share attributable to GSI Group Inc.
Basic	$	0.13		$	0.05		$	(0.03	)	$	0.06
Diluted	$	0.13		$	0.05		$	(0.03	)	$	0.06

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Business Combinations (Tables)

12 Months Ended

Dec. 31, 2014

JADAK Acquisition

Summary of Fair Values of Assets Acquired and Liabilities Assumed Purchase Price Allocation

The final purchase price allocation is as follows (in thousands):

	Amount
Cash	$	1,140
Accounts receivable		7,907
Inventory		6,865
Property and equipment		904
Intangible assets		40,250
Goodwill		44,584
Other assets		2,064
Total assets acquired		103,714
Accounts payable		3,057
Other liabilities		2,380
Deferred tax liabilities		3,481
Total liabilities assumed		8,918
Total purchase price		94,796
Less: Cash acquired		(1,140	)
Total purchase price, net of cash acquired	$	93,656

Fair Value of Intangible Assets

The fair value of JADAK intangible assets is comprised of the following (in thousands):

			Weighted Average
	Estimated Fair		Amortization
	Value		Period
Customer relationships	$	23,570	20 years
Developed technology		10,910	10 years
Trademarks and trade names		2,130	10 years
Backlog		1,810	1 year
Non-compete covenant		1,830	5 years
Total	$	40,250

Pro forma Financial Information

The following unaudited pro forma information presents the combined financial results for the Company and JADAK as if the acquisition of JADAK had been completed as of January 1, 2013 (in thousands, except per share information):

	Year Ended December 31,
	2014			2013
Sales	$	375,737		$	370,462
Income (loss) from continuing operations	$	(16,067	)	$	11,900
Earnings per share from continuing operations - Basic	$	(0.47	)	$	0.35
Earnings per share from continuing operations - Diluted	$	(0.47	)	$	0.35

NDS Acquisition

Summary of Fair Values of Assets Acquired and Liabilities Assumed Purchase Price Allocation

The total final purchase price allocation for the NDS acquisition was as follows (in thousands):

	Amount
Accounts receivable	$	10,327
Inventory		14,144
Property and equipment		2,426
Intangible assets		37,817
Goodwill		21,160
Other assets		1,782
Total assets acquired		87,656
Accounts payable		4,768
Other liabilities		7,149
Deferred tax liabilities		384
Total liabilities assumed		12,301
Total purchase price	$	75,355

Fair Value of Intangible Assets

The fair value of NDS intangible assets is comprised of the following (in thousands):

			Weighted Average
	Estimated Fair		Amortization
	Value		Period
Customer relationships	$	22,294	20 years
Developed technology		6,689	10 years
Trademarks and trade names		7,565	20 years
Backlog		1,269	1 year
Total	$	37,817

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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Allowance for Doubtful Accounts

For the years ended December 31, 2014, 2013 and 2012, the allowance for doubtful accounts was as follows (in thousands):

	2014			2013			2012
Balance at beginning of year	$	575		$	294		$	224
Provision charged to selling, general and administrative expenses		30			301			278
Allowance resulting from acquisitions		52			117			—
Write-offs, net of recoveries of amounts previously reserved		(352	)		(159	)		(222	)
Exchange rate changes		(23	)		22			14
Balance at end of year	$	282		$	575		$	294

Laser Quantum

Summary of Financial Information of Laser Quantum - Income Statement

The summarized financial information for Laser Quantum is as follows (in thousands):

	Year Ended December 31,
	2014		2013		2012
Sales	$	23,013	$	16,269	$	13,039
Income from operations	$	7,434	$	4,720	$	3,592
Net income	$	6,627	$	3,745	$	2,215

Summary of Financial Information of Laser Quantum - Balance Sheet

	Year Ended December 31,
	2014		2013
Total assets (1)	$	25,423	$	20,990
Total liabilities	$	2,482	$	4,240

· Total assets at December 31, 2014 and 2013 include cash and cash equivalent of $17.1 million and $13.6 million, respectively.

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Restructuring and Acquisition Related Costs - Additional Information (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2015	Dec. 31, 2012
Restructuring Cost And Reserve [Line Items]
Cash payments	$ 933,000	$ 4,516,000
Scenario, Forecast
Restructuring Cost And Reserve [Line Items]
Cash payments			100,000
GERMANY
Restructuring Cost And Reserve [Line Items]
Termination charges				300,000
2011 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring plan	In November 2011, the Company announced a strategic initiative (“2011 restructuring”), which aimed to consolidate operations to reduce the Company’s cost structure and improve operational efficiency. In total, eleven facilities have been exited as part of the 2011 restructuring plan. These eliminations resulted in the consolidation of the manufacturing facilities of the Scientific Lasers business and the optics products, consolidation of the Company’s German operations into one facility, and consolidation of the laser scanners business into the Company’s Bedford, MA manufacturing facility. Included in the eleven facilities exited are five facilities exited as part of the Semiconductor and Laser Systems business divestitures.
Number of facilities exited	11
2012 Restructuring
Restructuring Cost And Reserve [Line Items]
Severance costs				1,800,000
2013 Restructuring
Restructuring Cost And Reserve [Line Items]
Cash payments		$ 2,300,000

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Operating Results Historically Included Segment (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				12 Months Ended
	Dec. 31, 2014	Sep. 26, 2014	Sep. 27, 2013	Jun. 28, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Discontinued Operations And Disposal Groups [Abstract]
Sales from discontinued operations					$ 10,514	$ 33,792	$ 72,356
Loss from discontinued operations, before income tax					(8,059)	(3,361)	(10,209)
Loss from discontinued operations, net of tax					(5,607)	(2,054)	(10,974)
Gain (loss) on disposal of discontinued operations, net of tax	$ (1,405)	$ (321)	$ (281)	$ (311)	$ (1,726)	$ (592)	$ 2,255

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Organization and Presentation - Additional Information (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2008	Jun. 30, 2009
Organization And Business Activities [Line Items]
Minority interest ownership percentage	50.00%
Compliance description	The delay in the quarterly report on Form 10-Q caused a noncompliance with a covenant in the indenture governing the $210.0 million of 11% unsecured senior notes due 2013 (the “2008 Senior Notes”).
Date of petition for bankruptcy filed with the bankruptcy court	Nov. 20, 2009
11% Senior Unsecured Notes Due 2013
Organization And Business Activities [Line Items]
Senior notes covenant amount		$ 210.0
Debt instrument interest rate		11.00%
Minimum
Organization And Business Activities [Line Items]
Equity method investment ownership percentage	20.00%
Percentage of principal amount			75.00%
Maximum
Organization And Business Activities [Line Items]
Equity method investment ownership percentage	50.00%

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Discontinued Operations (Tables)

12 Months Ended

Dec. 31, 2014

Discontinued Operations And Disposal Groups [Abstract]

Components of Assets and Liabilities and Operating Results of Discontinued Operations

The major components of the assets and liabilities of discontinued operations as of December 31, 2014 and 2013, respectively, are as follows (in thousands):

	2014		2013
Accounts receivable, net	$	95	$	5,361
Inventories		161		8,454
Other assets		375		4,021
Assets of discontinued operations	$	631	$	17,836
Accounts payable	$	16	$	2,393
Accrued expenses and other current liabilities		74		2,332
Other liabilities		234		1,418
Liabilities of discontinued operations	$	324	$	6,143

The following table presents the operating results which are reported as discontinued operations in the Company’s consolidated statements of operations (in thousands):

	Year Ended December 31,
	2014			2013			2012
Sales from discontinued operations	$	10,514		$	33,792		$	72,356
Loss from discontinued operations, before income tax	$	(8,059	)	$	(3,361	)	$	(10,209	)
Loss from discontinued operations, net of tax	$	(5,607	)	$	(2,054	)	$	(10,974	)
Gain (loss) on disposal of discontinued operations, net of tax	$	(1,726	)	$	(592	)	$	2,255

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Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2014

Equity [Abstract]

Components of Accumulated Other Comprehensive Income (Loss)

Comprehensive income (loss) is defined as net income or loss and other changes in stockholders’ equity that do not represent transactions with stockholders or in the Company’s stock. Changes in accumulated other comprehensive income (loss) is as follows (in thousands):

	Total accumulated
	other			Foreign currency
	comprehensive			translation			Pension
	income (loss)			adjustment			liability
Balance at December 31, 2011	$	(5,024	)	$	2,809		$	(7,833	)
Other comprehensive loss		(6,973	)		(3,020	)		(3,953	)
Amounts reclassified from other comprehensive income (loss) (1)		2,248			1,510			738
Balance at December 31, 2012		(9,749	)		1,299			(11,048	)
Other comprehensive income		2,686			54			2,632
Amounts reclassified from other comprehensive income (loss) (1)		721			—			721
Balance at December 31, 2013	$	(6,342	)	$	1,353		$	(7,695	)
Other comprehensive loss		(10,488	)		(6,968	)		(3,520	)
Amounts reclassified from other comprehensive income (loss) (1)		374			—			374
Balance at December 31, 2014	$	(16,456	)	$	(5,615	)	$	(10,841	)

· The amounts reclassified from other comprehensive income (loss) were included in selling, general and administrative expenses in the consolidated statements of operations.

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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Consolidated net income (loss)	$ (24,242)	$ 7,331	$ 19,578
Less: Loss from discontinued operations, net of tax	7,333	2,646	8,719
Income (loss) from continuing operations	(16,909)	9,977	28,297
Adjustments to reconcile income (loss) from continuing operations to net cash provided by operating activities of continuing operations:
Depreciation and amortization	23,797	19,570	12,458
Provision for inventory excess and obsolescence	832	1,582	1,853
Impairment of goodwill and intangible assets	41,442	0	0
Share-based compensation	4,329	5,442	4,534
Deferred income taxes	(6,736)	3,886	(17,430)
Earnings from equity investment	(2,700)	(1,469)	(556)
Non-cash interest expense	1,379	965	1,049
Other non-cash items	1,586	1,230	422
Changes in assets and liabilities which provided (used) cash, excluding effects from businesses purchased or classified as held for sale:
Accounts receivable	3,526	(1,826)	(2,330)
Inventories	(991)	(1,688)	(1,889)
Prepaid expenses and other current assets	(527)	854	282
Income taxes receivable	(206)	10,848	6,161
Accounts payable, accrued expenses, deferred revenue and other current liabilities	(4,698)	5,958	7,155
Long-term income taxes payable	(158)	532	(6,291)
Other non-current assets and liabilities	24	317	(627)
Cash provided by operating activities of continuing operations	43,990	56,178	33,088
Cash used in operating activities of discontinued operations	(1,701)	(6,978)	(4,658)
Cash provided by operating activities	42,289	49,200	28,430
Cash flows from investing activities:
Purchases of property, plant and equipment	(5,415)	(4,777)	(3,521)
Acquisition of businesses, net of cash acquired and escrow recovery	(88,238)	(80,773)
Proceeds from the sale of property, plant and equipment	112	253	168
Cash used in investing activities of continuing operations	(93,541)	(85,297)	(3,353)
Cash provided by investing activities of discontinued operations	3,768	12,341	6,328
Cash provided by (used in) investing activities	(89,773)	(72,956)	2,975
Cash flows from financing activities:
Borrowings under revolving credit facility	77,000	60,000	5,000
Repayments of long-term debt and revolving credit facility	(33,500)	(38,500)	(23,000)
Payments for debt issuance costs	(712)	(145)	(1,826)
Payments of withholding taxes from stock-based awards	(1,666)	(1,495)	(543)
Other financing activities	(841)	(1,286)	(743)
Cash provided by (used in) financing activities of continuing operations	40,281	18,574	(21,112)
Cash provided by (used in) financing activities of discontinued operations	0	0	0
Cash provided by (used in ) financing activities	40,281	18,574	(21,112)
Effect of exchange rates on cash and cash equivalents	(2,631)	374	660
Increase (decrease) in cash and cash equivalents	(9,834)	(4,808)	10,953
Cash and cash equivalents, beginning of year	60,980	65,788	54,835
Cash and cash equivalents, end of year	51,146	60,980	65,788
Supplemental disclosure of cash flow information:
Cash paid for interest	3,793	2,291	2,067
Cash paid for income taxes	6,087	2,197	3,440
Income tax refunds received	931	12,607	222
Supplemental disclosure of non-cash investing activity:
Accrual for capital expenditures	26	184	925
Supplemental disclosure of non-cash financing activity:
Assets acquired under capital lease obligation	$ 10,438	$ 0	$ 0

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Goodwill, Intangible Assets and Impairment Charges (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill And Intangible Assets Disclosure [Abstract]

Results of Impairment Review

The results of the impairment review as of December 31, 2014 are summarized in the following table (in thousands):

	Pre-Impairment Net Carrying Value		Impairment Charge			Post-Impairment Net Carrying Value
Goodwill	$	110,321	$	(19,575	)	$	90,746
Intangible assets		89,109		(21,867	)		67,242
Total	$	199,430	$	(41,442	)	$	157,988

Summary of Changes in Goodwill

The following table summarizes changes in goodwill during the year ended December 31, 2014 (in thousands):

	December 31, 2014
Balance at beginning of year	$	71,156
Goodwill acquired from the JADAK acquisition		44,584
Recovery of escrow from the NDS acquisition		(5,419	)
NDS goodwill impairment		(19,575	)
Balance at end of year	$	90,746

Goodwill by Reportable Segment

Goodwill by reportable segment as of December 31, 2014 is as follows (in thousands):

	Reportable Segment
	Laser Products			Medical Technologies			Precision Motion			Total
Goodwill	$	132,954		$	82,730		$	26,291		$	241,975
Accumulated impairment of goodwill		(102,461	)		(31,722	)		(17,046	)		(151,229	)
Total	$	30,493		$	51,008		$	9,245		$	90,746

Goodwill by reportable segment as of December 31, 2013 is as follows (in thousands):

	Reportable Segment
	Laser Products			Medical Technologies			Precision Motion			Total
Goodwill	$	132,954		$	43,565		$	26,291		$	202,810
Accumulated impairment of goodwill		(102,461	)		(12,147	)		(17,046	)		(131,654	)
Total	$	30,493		$	31,418		$	9,245		$	71,156

Intangible Assets

Intangible assets as of December 31, 2014 and 2013, respectively, are summarized as follows (in thousands):

	December 31, 2014
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Remaining Life (Years)
Amortizable intangible assets:
Patents and acquired technologies	$	78,253	$	(62,010	)	$	16,243		7.5
Customer relationships		63,029		(31,531	)		31,498		14.7
Customer backlog		1,810		(1,641	)		169		0.2
Non-compete covenant		1,830		(366	)		1,464		4.2
Trademarks and trade names		10,205		(5,364	)		4,841		9.8
Amortizable intangible assets		155,127		(100,912	)		54,215		11.8
Non-amortizable intangible assets:
Trade names		13,027		—			13,027
Totals	$	168,154	$	(100,912	)	$	67,242

	December 31, 2013
	GrossCarrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Remaining Life (Years)
Amortizable intangible assets:
Patents and acquired technologies	$	68,500	$	(56,327	)	$	12,173		5.3
Customer relationships		55,585		(24,340	)		31,245		13.9
Customer backlog		1,269		(1,269	)		—		—
Trademarks and trade names		13,378		(4,530	)		8,848		16.4
Amortizable intangible assets		138,732		(86,466	)		52,266		12.3
Non-amortizable intangible assets:
Trade names		13,027		—			13,027
Totals	$	151,759	$	(86,466	)	$	65,293

Amortization Expense of Intangible Assets

Amortization expense is as follows (in thousands):

	Year Ended December 31,
	2014		2013		2012
Amortization expense – cost of sales	$	6,143	$	5,280	$	3,165
Amortization expense – operating expenses		10,262		7,270		2,650
Total amortization expense	$	16,405	$	12,550	$	5,815

Estimated Amortization Expense

Estimated amortization expense for each of the five succeeding years and thereafter as of December 31, 2014 is as follows (in thousands):

Year Ending December 31,	Cost of Sales		Operating Expenses		Total
2015	$	4,255	$	6,532	$	10,787
2016		3,143		6,695		9,838
2017		2,868		6,062		8,930
2018		1,434		5,511		6,945
2019		1,207		3,734		4,941
Thereafter		3,336		9,438		12,774
Total	$	16,243	$	37,972	$	54,215

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Share Based Compensation Expense Recorded In Income from Continuing Operations in Statements of Operations (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 4,651	$ 5,567	$ 4,585
Selling, general and administrative
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	3,967	5,144	4,339
Research and development and engineering
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	196	180	112
Cost of Sales
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	166	118	83
Restructuring and acquisition related costs
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 322	$ 125	$ 51

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Supplementary Information - Additional Information (Details) (USD $)	3 Months Ended				12 Months Ended			1 Months Ended
	Dec. 31, 2014	Sep. 26, 2014	Sep. 27, 2013	Jun. 28, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 27, 2013	May 31, 2013	Jul. 31, 2014
Quarterly Financial Information [Line Items]
Impairment of goodwill and intangible assets	$ 41,442,000				$ 41,442,000	$ 0	$ 0
Gain (Loss) on sale of business, net of tax	(1,405,000)	(321,000)	(281,000)	(311,000)	(1,726,000)	(592,000)	2,255,000
Semiconductor Systems
Quarterly Financial Information [Line Items]
Proceeds from sale of net assets and liabilities				8,000,000					9,700,000
Gain (Loss) on sale of business, net of tax				(300,000)		(400,000)		(300,000)
Scientific Lasers Business
Quarterly Financial Information [Line Items]
Proceeds from sale of net assets and liabilities										6,500,000
Gain (Loss) on sale of business, net of tax					$ (1,700,000)

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Restructuring and Acquisition Related Costs (Tables)

12 Months Ended

Dec. 31, 2014

Restructuring And Related Activities [Abstract]

Schedule Of Restructuring And Related Cost Table Text Block

The following table summarizes restructuring and acquisition related costs recorded in the accompanying consolidated statements of operations (in thousands):

	Year Ended December 31,
	2014		2013		2012
2011 restructuring	$	389	$	1,287	$	1,584
2012 restructuring		—		—		1,758
2013 restructuring		25		2,463		—
Novi and U.K. restructuring		—		—		(40	)
Germany restructuring		—		7		276
Total restructuring charges	$	414	$	3,757	$	3,578
Acquisition and related charges	$	909	$	1,630	$	791
JADAK earn-out costs		612		—		—
Total acquisition related charges	$	1,521	$	1,630	$	791
Total restructuring and acquisition related costs	$	1,935	$	5,387	$	4,369

Actual Cash Charges and Non-Cash Charges of the Restructuring Plan

Presented below are actual cash charges, including severance, relocation, facility closure and consulting costs, and non-cash charges related to depreciation (in thousands):

								Cumulative
	Year Ended December 31,							Costs as of
	2014			2013		2012		December 31, 2014
Cash charges	$	(235	)	$	1,037	$	1,540	$	3,048
Non-cash charges		624			250		44		1,006
Total restructuring costs	$	389		$	1,287	$	1,584	$	4,054

Summary of Restructuring Costs for Each Segment and Unallocated Corporate Costs

The following table summarizes restructuring costs for each segment and unallocated corporate costs related to the 2011 restructuring plan (in thousands):

								Cumulative
	Year Ended December 31,							Costs as of
	2014			2013		2012		December 31, 2014
Laser Products	$	(106	)	$	1,042	$	386	$	1,939
Medical Technologies		—			48		—		48
Precision Motion		—			5		52		122
Corporate, Shared Services and Unallocated costs		495			192		1,146		1,945
Total	$	389		$	1,287	$	1,584	$	4,054

The following table summarizes the total costs associated with the 2012 restructuring program for each segment and unallocated corporate costs for the year ended December 31, 2012 (in thousands):

	Year Ended December 31,
	2012
Laser Products	$	501
Precision Motion		951
Corporate, Shared Services and Unallocated costs		306
Total	$	1,758

The following table summarizes restructuring costs for each segment and unallocated corporate costs related to the 2013 restructuring program (in thousands):

	Year Ended December 31,
	2013
Laser Products	$	836
Medical Technologies		806
Precision Motion		378
Corporate, Shared Services and Unallocated costs		443
Total	$	2,463

Summary of Accrual Activities by Components Related to Company's Restructuring Plans

The following table summarizes the accrual activities, by component, related to the Company’s restructuring charges recorded in the accompanying consolidated balance sheets (in thousands):

	Total			Severance			Facility			Depreciation			Other
Balance at December 31, 2012	$	1,931		$	1,295		$	494		$	—		$	142
Restructuring charges		3,757			2,259			698			250			550
Acquired lease obligation		128			—			128			—			—
Cash payments		(4,516	)		(2,904	)		(1,085	)		—			(527	)
Non-cash write-offs and other adjustments		74			37			413			(250	)		(126	)
Balance at December 31, 2013		1,374			687			648			—			39
Restructuring charges		414			(83	)		(309	)		624			182
Cash payments		(933	)		(502	)		(234	)		—			(197	)
Non-cash write-offs and other adjustments		(624	)		—			—			(624	)		—
Balance at December 31, 2014	$	231		$	102		$	105		$	—		$	24

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Unaudited Pro forma Information (Details) (JADAK Acquisition, USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
JADAK Acquisition
Business Acquisition [Line Items]
Sales	$ 375,737	$ 370,462
Income (loss) from continuing operations	$ (16,067)	$ 11,900
Earnings per share from continuing operations - Basic	$ (0.47)	$ 0.35
Earnings per share from continuing operations - Diluted	$ (0.47)	$ 0.35

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Summary of Depreciation Expense on Property, Plant and Equipment, Including Demo Units and Assets under Capital Leases (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Depreciation expense	$ 8,016	$ 7,400	$ 6,868

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CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current Assets
Cash and cash equivalents	$ 51,146	$ 60,980
Accounts receivable, net of allowance of $282 and $575, respectively	51,494	48,552
Inventories	62,943	58,290
Income taxes receivable	5,906	5,715
Deferred tax assets	5,971	5,122
Prepaid expenses and other current assets	5,236	5,134
Assets of discontinued operations	631	17,836
Total current assets	183,327	201,629
Property, plant and equipment, net	40,088	31,303
Deferred tax assets	2,912
Other assets	14,604	9,426
Intangible assets, net	67,242	65,293
Goodwill	90,746	71,156
Total assets	398,919	378,807
Current Liabilities
Current portion of long-term debt	7,500	7,500
Accounts payable	25,592	24,361
Income taxes payable	1,189	1,018
Deferred tax liabilities	208	177
Accrued expenses and other current liabilities	19,401	22,288
Liabilities of discontinued operations	324	6,143
Total current liabilities	54,214	61,487
Long-term debt	107,500	64,000
Deferred tax liabilities	35	293
Income taxes payable	7,097	5,596
Other liabilities	18,819	5,028
Total liabilities	187,665	136,404
Commitments and Contingencies (Note 15)
Stockholders’ Equity:
Common shares, no par value; Authorized shares: unlimited; Issued and outstanding: 34,219 and 33,991, respectively	423,856	423,856
Additional paid-in capital	28,590	25,383
Accumulated deficit	(225,165)	(200,913)
Accumulated other comprehensive loss	(16,456)	(6,342)
Total GSI Group Inc. stockholders’ equity	210,825	241,984
Noncontrolling interest	429	419
Total stockholders’ equity	211,254	242,403
Total liabilities and stockholders’ equity	$ 398,919	$ 378,807

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Summary of Significant Accounting Policies - Additional Information (Details) (USD $)	12 Months Ended			3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 28, 2013	Mar. 29, 2013
Significant Accounting Policies [Line Items]
Earnings from equity investment	$ 2,700,000	$ 1,469,000	$ 556,000
Net investment	$ 8,000,000	$ 5,700,000
Laser Quantum
Significant Accounting Policies [Line Items]
Equity method investment ownership percentage	41.00%	41.00%
Equity method investment ownership percentage in Laser Quantum				41.00%	25.00%
Maximum
Significant Accounting Policies [Line Items]
Cash equivalents original maturity period	3 months
Equity method investment ownership percentage	50.00%
Payment terms	180 days
Maximum | Laser Products
Significant Accounting Policies [Line Items]
Standard warranty period	24 months
Maximum | Precision Motion
Significant Accounting Policies [Line Items]
Standard warranty period	24 months
Maximum | Medical Technologies
Significant Accounting Policies [Line Items]
Standard warranty period	60 months
Maximum | Buildings and improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives	30 years
Maximum | Machinery and Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives	10 years
Minimum
Significant Accounting Policies [Line Items]
Equity method investment ownership percentage	20.00%
Minimum | Laser Products
Significant Accounting Policies [Line Items]
Standard warranty period	12 months
Minimum | Precision Motion
Significant Accounting Policies [Line Items]
Standard warranty period	12 months
Minimum | Medical Technologies
Significant Accounting Policies [Line Items]
Standard warranty period	12 months
Minimum | Buildings and improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives	3 years
Minimum | Machinery and Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, estimated useful lives	1 year

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Income Taxes - Additional Information (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Line Items]
Tax benefit recognized due to the release of a portion of the valuation allowance on deferred tax assets			$ 15,300,000
Loss carryforwards	4,500,000
Tax credits	4,200,000
Undistributed earnings of foreign subsidiaries	15,800,000
Estimated unrecognized deferred income tax liabilities related to undistributed earnings of foreign subsidiaries	1,100,000
Unrecognized tax benefits	6,274,000	7,074,000	7,554,000	7,284,000
Unrecognized tax benefits that will impact tax rate if recognized	4,100,000	4,900,000	4,300,000
Settlements with taxation authorities			3,035,000
Maximum unrecognized tax benefits expected to be recorded in next twelve months	700,000
Unrecognized tax benefit income tax interest and penalties accrued	600,000	300,000
Unrecognized tax benefits, income tax penalties and interest expense	300,000
Unrecognized tax benefits, decrease in income tax penalties and interest expense		300,000
Capital Loss Carryforward
Income Taxes [Line Items]
Released valuation allowance previously recorded on certain U.S. state tax credits	400,000
CANADA
Income Taxes [Line Items]
Adjusted loss carryforward and related valuation allowance		4,800,000
Loss carryforwards	2,300,000
Operating loss carryforwards expiration year	2015
Tax credits	2,100,000
CANADA | Expires through 2022
Income Taxes [Line Items]
Tax credits	800,000
Tax credits, expiration Year	2021
CANADA | Carried forward indefinitely
Income Taxes [Line Items]
Tax credits	1,300,000
UNITED STATES
Income Taxes [Line Items]
Loss carryforwards	1,400,000
Operating loss carryforwards expiration year	2033
Tax credits	2,100,000
Tax credits, expiration Year	2034
UNITED KINGDOM
Income Taxes [Line Items]
Loss carryforwards	800,000
State and Local Jurisdiction
Income Taxes [Line Items]
Valuation allowances against current year net operating losses in certain tax jurisdictions	300,000	1,300,000
Released valuation allowance previously recorded on certain U.S. state tax credits	300,000	300,000
Foreign Tax Authority
Income Taxes [Line Items]
Adjusted loss carryforward and related valuation allowance		$ 700,000

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Subsequent Events - Additional Information (Details) (Subsequent Event, Applimotion Inc., USD $) In Millions, unless otherwise specified	0 Months Ended
	Feb. 19, 2015
Subsequent Event | Applimotion Inc.
Subsequent Event [Line Items]
Acquisition of business, cash consideration	$ 13.9

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Statement Of Income And Comprehensive Income [Abstract]
Foreign currency translation adjustments - Tax effect on component of comprehensive income	$ 622	$ 477	$ 1,942
Pension liability adjustments, tax effect on the component of comprehensive income	$ (906)	$ 900	$ (829)

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Reconciliation of Statutory Canadian Income Tax rate to Effective Rate (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 31, 2013	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
Statutory Canadian tax rate									27.00%	26.00%	25.00%
Expected income tax provision at statutory Canadian tax rate									$ (4,837)	$ 4,206	$ 4,176
International tax rate differences									(1,132)	156	1,863
Permanent differences									(88)	106	227
Change in valuation allowance									4,809	(3,076)	(17,564)
Prior year provision to return differences									962	(312)	37
Net operating loss expirations										4,538
Statutory tax rate change									(13)	354	316
Uncertain tax positions									134	259	(4,093)
Tax credits									(1,678)	(938)
State income taxes, net									(271)	148	478
IRS audit									241	680	1,846
Withholding and other taxes									421	321	488
Other									116	(242)	631
Goodwill impairment									330
Income Tax Provision (benefit)	$ (6,013)	$ 2,013	$ 2,057	$ 937	$ 1,246	$ 1,533	$ 3,018	$ 403	$ (1,006)	$ 6,200	$ (11,595)
Effective tax rate									5.60%	38.30%	(69.40%)

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Results of Impairment Review (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill And Intangible Assets Disclosure [Abstract]
Pre-Impairment Net Carrying Value, Goodwill	$ 110,321	$ 110,321
Pre-Impairment Net Carrying Value, Intangible assets	89,109	89,109
Pre-Impairment Net Carrying Value, Total	199,430	199,430
Impairment Charge, Goodwill		(19,575)
Impairment Charge, Intangible assets		(21,867)
Impairment Charge, Total	(41,442)	(41,442)	0	0
Post-Impairment Net Carrying Value, Goodwill	90,746	90,746	71,156
Post-Impairment Net Carrying Value, Intangible assets	67,242	67,242	65,293
Post-Impairment Net Carrying Value, Total	$ 157,988	$ 157,988

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Schedule of Restructuring and Related Cost (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 31, 2013	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Restructuring Cost And Reserve [Line Items]
Restructuring charges (benefits)									$ 414	$ 3,757	$ 3,578
Recognized acquisition costs									1,521	1,630	791
Restructuring and acquisition related costs	(14)	771	360	818	663	1,553	743	2,428	1,935	5,387	4,369
JADAK Acquisition | Earn-out Agreement
Restructuring Cost And Reserve [Line Items]
Recognized acquisition costs									612
Acquisition and Related Charges
Restructuring Cost And Reserve [Line Items]
Recognized acquisition costs									909	1,630	791
Novi and United Kingdom
Restructuring Cost And Reserve [Line Items]
Restructuring charges (benefits)											(40)
GERMANY
Restructuring Cost And Reserve [Line Items]
Restructuring charges (benefits)										7	276
2011 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring charges (benefits)									389	1,287	1,584
2012 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring charges (benefits)											1,758
2013 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring charges (benefits)									$ 25	$ 2,463

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Supplementary Balance Sheet Information (Tables)

12 Months Ended

Dec. 31, 2014

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Inventories

Inventories

	December 31,
	2014		2013
Raw materials	$	38,934	$	34,749
Work-in-process		9,899		9,744
Finished goods		11,945		10,682
Demo and consigned inventory		2,165		3,115
Total inventories	$	62,943	$	58,290

Property, Plant and Equipment, net

Property, Plant and Equipment, net

	December 31,
	2014			2013
Cost:
Land, buildings and improvements	$	46,222		$	37,048
Machinery and equipment		50,487			48,107
Total cost		96,709			85,155
Accumulated depreciation		(56,621	)		(53,852	)
Property, plant and equipment, net	$	40,088		$	31,303

Summary of Depreciation Expense on Property, Plant and Equipment, Including Demo Units and Assets under Capital Leases

The following table summarizes depreciation expense on property, plant and equipment, including demo units and assets under capital leases (in thousands):

	Year Ended December 31,
	2014		2013		2012
Depreciation expense	$	8,016	$	7,400	$	6,868

Summary of Total Accumulated Depreciation on Assets under Capital Leases

The following table summarizes total accumulated depreciation on assets under capital leases as of the dates indicated (in thousands):

	December 31,
	2014		2013		2012
Accumulated depreciation on assets under capital leases	$	2,741	$	1,653	$	861

Accrued Expenses and Other Current Liabilities

The following table summarizes accrued expenses and other current liabilities as of the dates indicated (in thousands):

	December 31,
	2014		2013
Accrued compensation and benefits	$	7,741	$	8,624
Accrued warranty		3,044		3,315
Other		8,616		10,349
Total	$	19,401	$	22,288

Accrued Warranty

The following table summarizes accrued warranty activities for the periods indicated (in thousands):

	Year Ended December 31,
	2014			2013
Balance at beginning of year	$	3,315		$	2,204
Provision charged to cost of sales		1,684			1,891
Acquisition related warranty accrual		90			998
Use of provision		(2,003	)		(1,804	)
Foreign currency exchange rate changes		(42	)		26
Balance at end of year	$	3,044		$	3,315

Summary of Other Long Term Liabilities

The following table summarizes other long term liabilities as of the dates indicated (in thousands):

	December 31,
	2014		2013
Capital lease obligations	$	9,507	$	—
Accrued pension liabilities		6,037		2,322
Other		3,275		2,706
Total	$	18,819	$	5,028

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Fair Values of Financial Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Assets
Cash equivalents	$ 2,255	$ 3,078
Fair Value, Inputs, Level 1
Assets
Cash equivalents	$ 2,255	$ 3,078

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Restructuring and Acquisition Related Costs

12 Months Ended

Dec. 31, 2014

Restructuring And Related Activities [Abstract]

Restructuring and Acquisition Related Costs

14. Restructuring and Acquisition Related Costs

The following table summarizes restructuring and acquisition related costs recorded in the accompanying consolidated statements of operations (in thousands):

	Year Ended December 31,
	2014		2013		2012
2011 restructuring	$	389	$	1,287	$	1,584
2012 restructuring		—		—		1,758
2013 restructuring		25		2,463		—
Novi and U.K. restructuring		—		—		(40	)
Germany restructuring		—		7		276
Total restructuring charges	$	414	$	3,757	$	3,578
Acquisition and related charges	$	909	$	1,630	$	791
JADAK earn-out costs		612		—		—
Total acquisition related charges	$	1,521	$	1,630	$	791
Total restructuring and acquisition related costs	$	1,935	$	5,387	$	4,369

2011 Restructuring

In November 2011, the Company announced a strategic initiative (“2011 restructuring”), which aimed to consolidate operations to reduce the Company’s cost structure and improve operational efficiency. In total, eleven facilities have been exited as part of the 2011 restructuring plan. These eliminations resulted in the consolidation of the manufacturing facilities of the Scientific Lasers business and the optics products, consolidation of the Company’s German operations into one facility, and consolidation of the laser scanners business into the Company’s Bedford, MA manufacturing facility. Included in the eleven facilities exited are five facilities exited as part of the Semiconductor and Laser Systems business divestitures. The facility exit costs for the divested businesses have been excluded from the table above. The Company substantially completed the 2011 restructuring program in 2013.

Presented below are actual cash charges, including severance, relocation, facility closure and consulting costs, and non-cash charges related to depreciation (in thousands):

								Cumulative
	Year Ended December 31,							Costs as of
	2014			2013		2012		December 31, 2014
Cash charges	$	(235	)	$	1,037	$	1,540	$	3,048
Non-cash charges		624			250		44		1,006
Total restructuring costs	$	389		$	1,287	$	1,584	$	4,054

The following table summarizes restructuring costs for each segment and unallocated corporate costs related to the 2011 restructuring plan (in thousands):

								Cumulative
	Year Ended December 31,							Costs as of
	2014			2013		2012		December 31, 2014
Laser Products	$	(106	)	$	1,042	$	386	$	1,939
Medical Technologies		—			48		—		48
Precision Motion		—			5		52		122
Corporate, Shared Services and Unallocated costs		495			192		1,146		1,945
Total	$	389		$	1,287	$	1,584	$	4,054

2012 Restructuring

During 2012, the Company initiated and completed a program to identify additional cost savings due to the continued uncertainty and volatility of the macroeconomic environment (“2012 restructuring”). The Company incurred $1.8 million of severance costs associated with the 2012 restructuring program during the year ended December 31, 2012.

The following table summarizes the total costs associated with the 2012 restructuring program for each segment and unallocated corporate costs for the year ended December 31, 2012 (in thousands):

	Year Ended December 31,
	2012
Laser Products	$	501
Precision Motion		951
Corporate, Shared Services and Unallocated costs		306
Total	$	1,758

2013 Restructuring

During the first half of 2013, the Company initiated a program following our acquisition of NDS to integrate the NDS business into our operating structure and further reduce manufacturing and operating costs across businesses to leverage our infrastructure and further integrate our product lines. The Company incurred $2.3 million of cash related charges primarily related to severance and exit costs associated with a facility exited during the year ended December 31, 2013.

The following table summarizes restructuring costs for each segment and unallocated corporate costs related to the 2013 restructuring program (in thousands):

	Year Ended December 31,
	2013
Laser Products	$	836
Medical Technologies		806
Precision Motion		378
Corporate, Shared Services and Unallocated costs		443
Total	$	2,463

Other Restructuring

The Company recorded restructuring charges related to the elimination of the Company’s Munich, Germany facility as a result of a restructuring program undertaken beginning in 2000 (“Germany restructuring”). The Company terminated the lease agreement and completed the Germany restructuring by making a final payment of $0.3 million to the landlord in December 2012.

Rollforward of Accrued Expenses Related to Restructuring

The following table summarizes the accrual activities, by component, related to the Company’s restructuring charges recorded in the accompanying consolidated balance sheets (in thousands):

	Total			Severance			Facility			Depreciation			Other
Balance at December 31, 2012	$	1,931		$	1,295		$	494		$	—		$	142
Restructuring charges		3,757			2,259			698			250			550
Acquired lease obligation		128			—			128			—			—
Cash payments		(4,516	)		(2,904	)		(1,085	)		—			(527	)
Non-cash write-offs and other adjustments		74			37			413			(250	)		(126	)
Balance at December 31, 2013		1,374			687			648			—			39
Restructuring charges		414			(83	)		(309	)		624			182
Cash payments		(933	)		(502	)		(234	)		—			(197	)
Non-cash write-offs and other adjustments		(624	)		—			—			(624	)		—
Balance at December 31, 2014	$	231		$	102		$	105		$	—		$	24

The Company expects to make $0.1 million in cash payments during the twelve months ending December 31, 2015.

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Debt (Tables)

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Debt

Debt consisted of the following (in thousands):

	December 31,
	2014		2013
Senior Credit Facilities – term loan	$	7,500	$	7,500
Total current portion of long-term debt	$	7,500	$	7,500
Senior Credit Facilities – term loan	$	27,500	$	35,000
Senior Credit Facilities – revolving credit facility		80,000		29,000
Total long-term debt	$	107,500	$	64,000
Total Senior Credit Facilities	$	115,000	$	71,500

Principal Repayments on Outstanding Term Loan

The principal on the Company’s outstanding term loan matures as follows (in thousands):

	Term Loan
2015	$	7,500
2016		7,500
2017		20,000
Total debt repayments	$	35,000

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Income Tax Returns to be Reviewed (Details)	12 Months Ended
	Dec. 31, 2014
UNITED STATES
Income Tax Examination [Line Items]
Income tax returns to be reviewed	2009
CANADA
Income Tax Examination [Line Items]
Income tax returns to be reviewed	2007
UNITED KINGDOM
Income Tax Examination [Line Items]
Income tax returns to be reviewed	2013
CHINA
Income Tax Examination [Line Items]
Income tax returns to be reviewed	2011
JAPAN
Income Tax Examination [Line Items]
Income tax returns to be reviewed	2009
GERMANY
Income Tax Examination [Line Items]
Income tax returns to be reviewed	2008
NETHERLANDS
Income Tax Examination [Line Items]
Income tax returns to be reviewed	2009

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Segment Information

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Segment Information

16. Segment Information

Reportable Segments

The Company evaluates the performance of, and allocates resources to, its segments based on sales, gross profit and operating profit. The Company reports assets on a consolidated basis to the chief operating decision maker, which is the Chief Executive Officer. The Company’s reportable segments have been identified based on commonality of end markets, customers, applications and technologies amongst the Company’s individual product lines, which is consistent with the Company’s operating structure, associated management structure, and management compensation programs.

We operate in three reportable segments: Laser Products, Medical Technologies, and Precision Motion. The reportable segments and their principal activities consist of the following:

Laser Products

The Laser Products segment designs, manufactures and markets photonics-based solutions to customers worldwide. The segment serves highly demanding photonics-based applications such as industrial material processing, and medical and life science imaging and laser procedures. The vast majority of the segment’s product offerings are sold to OEM customers. The business sells these products both directly, utilizing a highly technical sales force, and indirectly, through resellers and distributors.

Medical Technologies

The Medical Technologies segment designs, manufactures and markets a range of medical grade technologies, including visualization solutions, imaging informatics products, optical data collection and machine vision technologies, thermal printers, and light and color measurement instrumentation to customers worldwide. The vast majority of the segment’s product offerings are sold to OEM customers. The segment sells these products both directly, utilizing a highly technical sales force, and indirectly, through resellers and distributors.

Precision Motion

The Precision Motion segment designs, manufactures and markets optical encoders, air bearing spindles and precision machined componentsto customers worldwide. The vast majority of the segment’s product offerings are sold into the electronics, industrial and, to a lesser extent, the medical markets. The segment sells these products both directly, utilizing a highly technical sales force, and indirectly, through resellers and distributors.

Reportable Segment Financial Information

Sales, gross profit, operating income (loss) from continuing operations, and depreciation and amortization by reportable segments are as follows (in thousands):

	Year Ended December 31,
	2014		2013		2012
Sales
Laser Products	$	177,726	$	166,598	$	158,639
Medical Technologies		122,187		90,276		25,915
Precision Motion		64,793		60,036		59,242
Total	$	364,706	$	316,910	$	243,796

	Year Ended December 31,
	2014			2013			2012
Gross Profit
Laser Products	$	74,224		$	68,819		$	66,498
Medical Technologies		48,678			35,824			13,149
Precision Motion		28,333			27,778			26,796
Corporate, Shared Services and Unallocated		(1,068	)		(194	)		(925	)
Total	$	150,167		$	132,227		$	105,518

	Year Ended December 31,
	2014			2013			2012
Operating Income (Loss) from Continuing Operations
Laser Products	$	33,053		$	25,143		$	24,480
Medical Technologies		(43,079	)		3,566			8,285
Precision Motion		13,023			12,062			9,482
Corporate, Shared Services and Unallocated		(19,803	)		(21,325	)		(21,985	)
Total	$	(16,806	)	$	19,446		$	20,262

	Year Ended December 31,
	2014		2013		2012
Depreciation and Amortization
Laser Products	$	6,481	$	6,335	$	6,448
Medical Technologies		13,254		8,808		702
Precision Motion		1,943		1,979		2,066
Corporate, Shared Services and Unallocated		2,743		2,828		3,467
Total	$	24,421	$	19,950	$	12,683

Geographic Information

The Company aggregates geographic sales based on the customer location where products are shipped. Sales to these customers are as follows (in thousands, except percentage data):

	Year Ended December 31,
	2014					2013					2012
	Sales		% of Total			Sales		% of Total			Sales		% of Total
United States	$	140,973		38.7	%	$	107,892		34.0	%	$	76,437		31.4	%
Germany		59,029		16.2			56,287		17.8			32,822		13.5
Rest of Europe		54,308		14.9			45,698		14.4			41,466		17.0
China		40,792		11.2			37,651		11.9			21,001		8.6
Rest of Asia-Pacific		58,830		16.1			57,802		18.2			65,262		26.8
Other		10,774		2.9			11,580		3.7			6,808		2.7
Total	$	364,706		100.0	%	$	316,910		100.0	%	$	243,796		100.0	%

Long-lived assets consist of property, plant and equipment, net, and are aggregated based on the location of the assets. A summary of these long-lived assets is as follows (in thousands):

	December 31,
	2014		2013
United States	$	32,988	$	23,305
Europe		5,318		5,617
China		1,705		2,196
Asia-Pacific and other		77		185
Total	$	40,088	$	31,303

Significant Customers

No customer accounted for greater than 10% of the Company’s sales during the years ended December 31, 2014, 2013 or 2012.

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Earnings (Loss) per Share - Additional Information (Details) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2014	Oct. 31, 2013
Computation Of Earnings Per Share [Line Items]
Repurchase of common stock	$ 526,000
Average cost of repurchase per share	$ 10.49
Maximum
Computation Of Earnings Per Share [Line Items]
Outstanding common stock repurchase program authorized amount			$ 10,000,000
Capital Stock
Computation Of Earnings Per Share [Line Items]
Shares repurchased	50	0

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Sales, Gross Profit by Reportable Segments (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 31, 2013	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Sales	$ 94,012	$ 94,656	$ 96,905	$ 79,133	$ 82,212	$ 79,858	$ 79,769	$ 75,071	$ 364,706	$ 316,910	$ 243,796
Gross Profit	39,728	39,683	38,651	32,105	34,196	34,161	33,239	30,631	150,167	132,227	105,518
Laser Products
Segment Reporting Information [Line Items]
Sales									177,726	166,598	158,639
Gross Profit									74,224	68,819	66,498
Medical Technologies
Segment Reporting Information [Line Items]
Sales									122,187	90,276	25,915
Gross Profit									48,678	35,824	13,149
Precision Motion
Segment Reporting Information [Line Items]
Sales									64,793	60,036	59,242
Gross Profit									28,333	27,778	26,796
Corporate, Shared Services and Unallocated
Segment Reporting Information [Line Items]
Gross Profit									$ (1,068)	$ (194)	$ (925)

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Thousands	Total	Capital Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Income (Loss)	Retained Earnings (Accumulated Deficit)	Noncontrolling Interest
Balance at Dec. 31, 2011	$ 209,360	$ 423,856	$ 17,931	$ (5,024)	$ (227,760)	$ 357
Balance (in shares) at Dec. 31, 2011		33,478
Net income	19,578				19,538	40
Issuance of common stock upon vesting of non-vested stock awards (in shares)		383
Share-based compensation	4,631		4,631
Net settlement of vested stock awards (in shares)		(65)
Net settlement of vested stock awards	(543)		(543)
Tax benefit (shortfalls) of vested stock awards	(95)		(95)
Other comprehensive loss, net of tax	(4,725)			(4,725)
Balance at Dec. 31, 2012	228,206	423,856	21,924	(9,749)	(208,222)	397
Balance (in shares) at Dec. 31, 2012		33,796
Net income	7,331				7,309	22
Issuance of common stock upon vesting of non-vested stock awards (in shares)		395
Repurchase of common stock (in shares)		(50)
Repurchase of common stock	(526)		(526)
Share-based compensation	5,624		5,624
Net settlement of vested stock awards (in shares)		(150)
Net settlement of vested stock awards	(1,495)		(1,495)
Tax benefit (shortfalls) of vested stock awards	(144)		(144)
Other comprehensive loss, net of tax	3,407			3,407
Balance at Dec. 31, 2013	242,403	423,856	25,383	(6,342)	(200,913)	419
Balance (in shares) at Dec. 31, 2013		33,991
Net income	(24,242)				(24,252)	10
Issuance of common stock upon vesting of non-vested stock awards (in shares)		362
Repurchase of common stock (in shares)		0
Share-based compensation	4,659		4,659
Net settlement of vested stock awards (in shares)		(134)
Net settlement of vested stock awards	(1,666)		(1,666)
Tax benefit (shortfalls) of vested stock awards	214		214
Other comprehensive loss, net of tax	(10,114)			(10,114)
Balance at Dec. 31, 2014	$ 211,254	$ 423,856	$ 28,590	$ (16,456)	$ (225,165)	$ 429
Balance (in shares) at Dec. 31, 2014		34,219

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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Per Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Statement Of Financial Position [Abstract]
Accounts receivable, allowance	$ 282	$ 575
Common shares, no par value	$ 0	$ 0
Common shares, Issued	34,219	33,991
Common shares, outstanding	34,219	33,991

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Supplementary Balance Sheet Information

12 Months Ended

Dec. 31, 2014

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Supplementary Balance Sheet Information

9. Supplementary Balance Sheet Information

The following tables provide the details of selected balance sheet items as of the dates indicated (in thousands):

Inventories

	December 31,
	2014		2013
Raw materials	$	38,934	$	34,749
Work-in-process		9,899		9,744
Finished goods		11,945		10,682
Demo and consigned inventory		2,165		3,115
Total inventories	$	62,943	$	58,290

Property, Plant and Equipment, net

	December 31,
	2014			2013
Cost:
Land, buildings and improvements	$	46,222		$	37,048
Machinery and equipment		50,487			48,107
Total cost		96,709			85,155
Accumulated depreciation		(56,621	)		(53,852	)
Property, plant and equipment, net	$	40,088		$	31,303

In 2014, the Company capitalized $10.4 million of assets which met the capital lease criteria of ASC 840-30, “Leases—Capital Lease”. The assets acquired under the capital lease are included in land, buildings and improvements and machinery and equipment and the related amortization expense is included in depreciation expense. The Company also capitalized software development costs of $0.2 million, $0.2 million and $0.6 million during the years ended 2014, 2013 and 2012, respectively, based on the guidance in ASC 350-40, “Internal-Use Software”. The following table summarizes depreciation expense on property, plant and equipment, including demo units and assets under capital leases (in thousands):

	Year Ended December 31,
	2014		2013		2012
Depreciation expense	$	8,016	$	7,400	$	6,868

The following table summarizes total accumulated depreciation on assets under capital leases as of the dates indicated (in thousands):

	December 31,
	2014		2013		2012
Accumulated depreciation on assets under capital leases	$	2,741	$	1,653	$	861

Accrued Expenses and Other Current Liabilities

The following table summarizes accrued expenses and other current liabilities as of the dates indicated (in thousands):

	December 31,
	2014		2013
Accrued compensation and benefits	$	7,741	$	8,624
Accrued warranty		3,044		3,315
Other		8,616		10,349
Total	$	19,401	$	22,288

Accrued Warranty

The following table summarizes accrued warranty activities for the periods indicated (in thousands):

	Year Ended December 31,
	2014			2013
Balance at beginning of year	$	3,315		$	2,204
Provision charged to cost of sales		1,684			1,891
Acquisition related warranty accrual		90			998
Use of provision		(2,003	)		(1,804	)
Foreign currency exchange rate changes		(42	)		26
Balance at end of year	$	3,044		$	3,315

Other Long Term Liabilities

The following table summarizes other long term liabilities as of the dates indicated (in thousands):

	December 31,
	2014		2013
Capital lease obligations	$	9,507	$	—
Accrued pension liabilities		6,037		2,322
Other		3,275		2,706
Total	$	18,819	$	5,028

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Summary of Accrual Activities by Components Related to Company's Restructuring Charges (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Restructuring Cost And Reserve [Line Items]
Accrued expense beginning balance	$ 1,374	$ 1,931
Restructuring charges	414	3,757
Acquired lease obligation		128
Cash payments	(933)	(4,516)
Non-cash write-offs and other adjustments	(624)	74
Accrued expense ending balance	231	1,374
Employee Severance
Restructuring Cost And Reserve [Line Items]
Accrued expense beginning balance	687	1,295
Restructuring charges	(83)	2,259
Acquired lease obligation		0
Cash payments	(502)	(2,904)
Non-cash write-offs and other adjustments	0	37
Accrued expense ending balance	102	687
Facility
Restructuring Cost And Reserve [Line Items]
Accrued expense beginning balance	648	494
Restructuring charges	(309)	698
Acquired lease obligation		128
Cash payments	(234)	(1,085)
Non-cash write-offs and other adjustments	0	413
Accrued expense ending balance	105	648
Depreciation And Impairment
Restructuring Cost And Reserve [Line Items]
Accrued expense beginning balance	0	0
Restructuring charges	624	250
Acquired lease obligation		0
Cash payments	0	0
Non-cash write-offs and other adjustments	(624)	(250)
Accrued expense ending balance	0	0
Other Restructuring Charges
Restructuring Cost And Reserve [Line Items]
Accrued expense beginning balance	39	142
Restructuring charges	182	550
Acquired lease obligation		0
Cash payments	(197)	(527)
Non-cash write-offs and other adjustments	0	(126)
Accrued expense ending balance	$ 24	$ 39

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Components of Income Tax Provision (Benefit) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 31, 2013	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Components Of Income Tax Expense Benefit [Line Items]
Current income tax provision (benefit)									$ 5,730	$ 2,314	$ 5,835
Deferred income tax provision (benefit)									(6,736)	3,886	(17,430)
Income Tax Provision (benefit)	(6,013)	2,013	2,057	937	1,246	1,533	3,018	403	(1,006)	6,200	(11,595)
CANADA
Components Of Income Tax Expense Benefit [Line Items]
Current income tax provision (benefit)									175	0	0
Deferred income tax provision (benefit)									0	0	0
UNITED STATES
Components Of Income Tax Expense Benefit [Line Items]
Current income tax provision (benefit)									3,615	1,662	3,560
Deferred income tax provision (benefit)									(6,731)	2,206	(14,467)
Other Countries
Components Of Income Tax Expense Benefit [Line Items]
Current income tax provision (benefit)									1,940	652	2,275
Deferred income tax provision (benefit)									$ (5)	$ 1,680	$ (2,963)

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Summary of Fair Value of Plan Assets by Asset Category (Parenthetical) (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Cash
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	10.00%
UNITED KINGDOM | Bonds | Balanced Fund
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	32.00%	33.00%
UNITED KINGDOM | Bonds | Growth Funds
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	15.00%	9.00%
UNITED KINGDOM | Equity Securities | Balanced Fund
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	54.00%	51.00%
UNITED KINGDOM | Equity Securities | Growth Funds
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	67.00%	70.00%
UNITED KINGDOM | Other Assets | Balanced Fund
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	5.00%	8.00%
UNITED KINGDOM | Other Assets | Growth Funds
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	8.00%	14.00%
UNITED KINGDOM | Cash | Balanced Fund
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	9.00%	8.00%
UNITED KINGDOM | Cash | Growth Funds
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined benefit plan, target plan asset allocations	10.00%	7.00%

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Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2014	Feb. 20, 2015	Jun. 27, 2014
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Trading Symbol	GSIG
Entity Registrant Name	GSI GROUP INC
Entity Central Index Key	0001076930
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		34,239,720
Entity Public Float			$ 367,951,219

XML

Debt

12 Months Ended

Dec. 31, 2014

Debt Disclosure [Abstract]

Debt

10. Debt

Debt consisted of the following (in thousands):

	December 31,
	2014		2013
Senior Credit Facilities – term loan	$	7,500	$	7,500
Total current portion of long-term debt	$	7,500	$	7,500
Senior Credit Facilities – term loan	$	27,500	$	35,000
Senior Credit Facilities – revolving credit facility		80,000		29,000
Total long-term debt	$	107,500	$	64,000
Total Senior Credit Facilities	$	115,000	$	71,500

Senior Credit Facilities

On December 27, 2012, the Company entered into an amended and restated senior secured credit agreement (the “Amended and Restated Credit Agreement”) with new and existing lenders for an aggregate credit facility of $125.0 million, consisting of a $50.0 million, 5-year, term loan facility and a $75.0 million, 5-year, revolving credit facility (collectively, the “Senior Credit Facilities”). The Senior Credit Facilities mature in December 2017. The Amended and Restated Credit Agreement amended and restated the credit agreement dated October 19, 2011 (the “Original Credit Agreement”). The terms and conditions of the Amended and Restated Credit Agreement did not substantially change from the Original Credit Agreement.

The borrowings outstanding under the credit facility bear interest at rates based on (a) the Eurodollar Rate, as defined in the Amended and Restated Credit Agreement, plus a rate ranging from 2.00% to 3.00% per annum or (b) the Base Rate, as defined in the Amended and Restated Credit Agreement, plus a rate ranging from 1.00% to 2.00% per annum, in each case based upon the Company’s consolidated leverage ratio. The Company is also required to pay a commitment fee on unused commitments under the revolving credit facility ranging between 0.250% and 0.625% per annum, which is based upon the Company’s consolidated leverage ratio. As of December 31, 2014, the Company had $95.0 million available to be drawn under the revolving credit facility. Inclusive of commitment fees, the interest rate for the credit facility was approximately 2.9% as of December 31, 2014.

The Amended and Restated Credit Agreement contains various customary representations, warranties and covenants applicable to the Company and its subsidiaries, including, (i) covenants regarding maximum consolidated leverage ratio and minimum consolidated fixed charge coverage ratio; (ii) limitations on restricted payments, including dividend payments and stock repurchases, provided that the Company may repurchase their equity interests, so long as immediately after giving effect to the repurchase, the Company’s consolidated leverage ratio is no more than 2.25:1.00, and the Company has unrestricted cash plus amounts available for borrowing under the Senior Credit Facilities of at least $25.0 million immediately after giving effect on the repurchase; (iii) limitations on fundamental changes involving the Company; (iv) limitations on the disposition of assets; and (v) limitations on indebtedness, investments, and liens.

The Company’s obligations under the Senior Credit Facilities are secured on a senior basis by a lien on substantially all of the assets of the Company and its material United States (“U.S.”) and United Kingdom (“U.K.”) subsidiaries and guaranteed by the Company and its material U.S. and U.K. subsidiaries. The Amended and Restated Credit Agreement also contains customary events of default.

The Company entered into three amendments to the Amended and Restated Credit Agreement during 2013 and one amendment during 2014. The first and second amendments resulted in immaterial modifications. On September 13, 2013, the Company entered into a third amendment (the “Third Amendment”) which increased the accordion feature provided in the Amended and Restated Agreement from uncommitted $50.0 million to uncommitted $100.0 million in aggregate of the revolving credit facility and term loan. On February 10, 2014, the Company entered into a fourth amendment (the “Fourth Amendment”). The Fourth Amendment increased the revolving credit facility commitment under the Amended and Restated Credit Agreement by $100 million from $75 million to $175 million and reset the accordion feature to $100 million for future expansion. Additionally, the Fourth Amendment increased the maximum permitted consolidated leverage ratio from 2.75 to 3.00, and increased the maximum consolidated leverage ratio for permitted acquisitions and stock repurchases from 2.25 to 2.50. The Company was in compliance with these debt covenants as of December 31, 2014.

The principal on the Company’s outstanding term loan matures as follows (in thousands):

	Term Loan
2015	$	7,500
2016		7,500
2017		20,000
Total debt repayments	$	35,000

Subject to certain exceptions, the Company will be required to prepay outstanding loans under the Amended and Restated Credit Agreement with the net proceeds of certain asset dispositions and incurrences of certain debt. The Company may voluntarily prepay loans or reduce commitments under the Senior Credit Facilities, in whole or in part, without premium or penalty, subject to certain minimum principal amounts.

Guarantees

Each Guarantor, as defined in the Amended and Restated Credit Agreement, jointly and severally, unconditionally guarantees the due and punctual payment of the principal, interest and fees on the Senior Credit Facilities, when due and payable, whether at maturity, by required prepayment, by acceleration or otherwise. In addition, Guarantors guarantee the due and punctual payment, fees and interest on the overdue principal of the Senior Credit Facilities and the due and punctual performance of all obligations of the Company in accordance with the terms of the Amended and Restated Credit Agreement. Furthermore, each Guarantor, jointly and severally, unconditionally guarantees that in the event of any extension, renewal, amendment, refinancing or modification of any of the Senior Credit Facilities or any of such other Obligations, as defined in the Amended and Restated Credit Agreement, amounts due will be promptly paid in full when due or performed in accordance with the terms of the extension or renewal, at stated maturity, by acceleration or otherwise.

The obligations of each Guarantor are limited to the maximum amount, after giving effect to all other contingent and fixed liabilities or any collections from or payments made by or on behalf of any other Guarantor. Each Guarantor that makes a payment or distribution under a Guarantee is entitled to a contribution from each other Guarantor of its Pro Rata Share, as defined in the Amended and Restated Credit Agreement, based on the adjusted net assets of each Guarantor. The Guarantees will continue to be effective or be reinstated, as the case may be, if at any time any payment of any of the obligations of the Guarantors is rescinded or must otherwise be returned upon the insolvency, bankruptcy or reorganization of the Company, a Guarantor or otherwise, all as though such payment had not been made.

Each Guarantor may be released from its obligations under its respective Guarantee and its obligations under the Amended and Restated Credit Agreement upon the occurrence of certain events, including, but not limited to: (i) the Guarantor ceases to be a subsidiary; and (ii) payment in full of the principal, accrued and unpaid interest on the Senior Credit Facilities and all other obligations.

As of December 31, 2014, the maximum potential amount of future payments the Guarantors could be required to make under the Guarantee is the principal amount of the Senior Credit Facilities plus all unpaid but accrued interest thereon. However, as of December 31, 2014, the Guarantors are not expected to be required to perform under the Guarantee.

Mortgages

In connection with the Amended and Restated Credit Agreement and as required thereby, Synrad, Inc. (“Synrad”), Photo Research, Inc. (“Photo Research”) and Excel Technology, Inc. (“Excel”), each a subsidiary of the Company, continues to be subject to an Open-End Deed of Trust, Assignment of Leases and Rents, Security Agreement and Fixture Filing, dated as of October 19, 2011, in favor of or for the benefit of the Trustee, wherein Synrad, Photo Research and Excel mortgaged, granted, bargained, assigned, sold and conveyed their respective interest in the property located in Mukilteo, Washington, Chatsworth, California and Orlando, Florida, respectively, to secure (a) the payment of all of the obligations of the Borrower and the Guarantors under the Amended and Restated Credit Agreement, the respective mortgages and the other Security Documents (as defined in the respective mortgage), and (b) the performance of all terms, covenants, conditions, provisions, agreements and liabilities contained in the credit agreement.

Fair Value of Debt

As of December 31, 2014 and 2013, the outstanding balance of the Company’s debt approximated fair value based on current rates available to the Company for debt of the same maturity.

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Share-Based Compensation - Additional Information (Details) (USD $)	12 Months Ended			0 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Mar. 14, 2014	Sep. 02, 2010	May 31, 2014
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense recognized	$ 4,651,000	$ 5,567,000	$ 4,585,000
Unrecognized stock-based compensation expense	5,800,000
Unrecognized stock-based compensation expense, weighted-average recognition period	1 year 9 months 18 days
JADAK Acquisition
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Membership interests acquired				100.00%
Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Vesting period	3 years
Restricted Stock Units (RSUs) | JADAK Acquisition | Management
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Restricted stock units issued				180,000
Vesting period				2 years
2010 Deferred Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock units granted					83,337
Weighted average grant date fair value, granted					$ 6.66
Deferred Stock Units
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based compensation expense recognized	500,000	500,000	600,000
2010 Incentive Award Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum number of shares to be issued						4,398,613
Incentive plan and award expiration date	Apr. 09, 2024
Shares available for future issuance	2,284,553
2010 Incentive Award Plan | Restricted Stock Units (RSUs)
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total fair value of restricted stock vested	$ 4,500,000
Stock units granted	338,000
Weighted average grant date fair value, granted	$ 12.26

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Summary of Fair Value of Plan Assets by Asset Category (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
UNITED KINGDOM
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	$ 33,610		$ 33,457		$ 28,629
UNITED KINGDOM | Mutual Funds | Balanced Fund
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	16,287	[1]	16,260	[2]
UNITED KINGDOM | Mutual Funds | Growth Funds
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	17,149	[3]	17,060	[4]
UNITED KINGDOM | Cash
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	174		137
UNITED KINGDOM | Fair Value, Inputs, Level 1
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	174		137
UNITED KINGDOM | Fair Value, Inputs, Level 1 | Cash
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	174		137
UNITED KINGDOM | Fair value, Inputs, Level 2
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	33,436		33,320
UNITED KINGDOM | Fair value, Inputs, Level 2 | Mutual Funds | Balanced Fund
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	16,287	[1]	16,260	[2]
UNITED KINGDOM | Fair value, Inputs, Level 2 | Mutual Funds | Growth Funds
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	17,149	[3]	17,060	[4]
JAPAN
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	412		537		801
JAPAN | Insurance Contracts
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	412	[5]	537	[5]
JAPAN | Fair value, Inputs, Level 2
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	412		537
JAPAN | Fair value, Inputs, Level 2 | Insurance Contracts
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value of Plan Assets	$ 412	[5]	$ 537	[5]

[1] This class comprises a diversified portfolio of global investments which seeks a balanced return between capital growth and fixed income and is allocated on a weighted average basis as follows: equities (54%), bonds (32%), other assets (5%) and cash (9%).

[2] This class comprises a diversified portfolio of global investments which seeks a balanced return between capital growth and fixed income and is allocated on a weighted average basis as follows: equities (51%), bonds (33%), other assets (8%) and cash (8%).

[3] This class comprises a diversified portfolio of global investments which seeks long-term capital growth and is allocated on a weighted average basis as follows: equities (67%), bonds (15%), other assets (8%) and cash (10%).

[4] This class comprises a diversified portfolio of global investments which seeks long-term capital growth and is allocated on a weighted average basis as follows: equities (70%), other assets (14%), bonds (9%), and cash (7%).

[5] This class represents funds invested in insurance contracts.

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CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Statement [Abstract]
Sales	$ 364,706	$ 316,910	$ 243,796
Cost of sales	214,539	184,683	138,278
Gross profit	150,167	132,227	105,518
Operating expenses:
Research and development and engineering	28,954	23,787	18,530
Selling, general and administrative	84,380	76,337	59,707
Amortization of purchased intangible assets	10,262	7,270	2,650
Restructuring and acquisition related costs	1,935	5,387	4,369
Impairment of goodwill and intangible assets	41,442	0	0
Total operating expenses	166,973	112,781	85,256
Operating income (loss) from continuing operations	(16,806)	19,446	20,262
Interest income (expense), net	(5,096)	(3,468)	(2,792)
Foreign exchange transaction gains (losses), net	1,281	(1,301)	(1,347)
Other income (expense), net	2,706	1,500	579
Income (loss) from continuing operations before income taxes	(17,915)	16,177	16,702
Income tax provision (benefit)	(1,006)	6,200	(11,595)
Income (loss) from continuing operations	(16,909)	9,977	28,297
Loss from discontinued operations, net of tax	(5,607)	(2,054)	(10,974)
Gain (loss) on disposal of discontinued operations, net of tax	(1,726)	(592)	2,255
Consolidated net income (loss)	(24,242)	7,331	19,578
Less: Net income attributable to noncontrolling interest	(10)	(22)	(40)
Net income (loss) attributable to GSI Group Inc.	(24,252)	7,309	19,538
Earnings (loss) per common share from continuing operations:
Basic	$ (0.49)	$ 0.29	$ 0.84
Diluted	$ (0.49)	$ 0.29	$ 0.84
Loss per common share from discontinued operations:
Basic	$ (0.21)	$ (0.08)	$ (0.26)
Diluted	$ (0.21)	$ (0.08)	$ (0.26)
Earnings (loss) per common share attributable to GSI Group Inc.:
Basic	$ (0.70)	$ 0.21	$ 0.58
Diluted	$ (0.70)	$ 0.21	$ 0.58
Weighted average common shares outstanding—basic	34,352	34,073	33,775
Weighted average common shares outstanding—diluted	34,352	34,396	33,936
Amounts attributable to GSI Group Inc.:
Income (loss) from continuing operations	(16,909)	9,977	28,297
Loss from discontinued operations	(7,343)	(2,668)	(8,759)
Net income (loss) attributable to GSI Group Inc.	$ (24,252)	$ 7,309	$ 19,538

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Discontinued Operations

12 Months Ended

Dec. 31, 2014

Discontinued Operations And Disposal Groups [Abstract]

Discontinued Operations

4. Discontinued Operations

Beginning in 2011, the Company initiated a strategic review of its businesses to focus its priorities and investments, while simplifying and streamlining its business model. In June 2012, the Company committed to a plan for the sale of the Semiconductor Systems operating segment, sold under the GSI brand name, and Laser Systems product lines, sold under the Control Laser and Baublys brand names. The Company began accounting for these businesses as discontinued operations beginning in the second quarter of 2012.

In the first quarter of 2014, the Company’s Board of Directors committed to a plan to sell the Scientific Lasers business, which was included in the Company’s Laser Products segment. The Company determined that the asset held-for-sale criteria were satisfied and began to account for the Scientific Lasers business as discontinued operations in the first quarter of 2014. As a result, prior period information related to the business has been reclassified into discontinued operations to conform to current period presentation. The discontinued business has been excluded from the following Notes to Consolidated Financial Statements unless otherwise stated.

Laser Systems

In October 2012, the Company sold certain assets and liabilities of the Laser Systems business for $7.0 million to Hans Laser, subject to working capital adjustments, and recorded a $2.3 million gain, net of tax, in the consolidated statement of operations during the year ended December 31, 2012. In September 2013, the Company paid $0.4 million to Hans Laser as the final net working capital adjustment which resulted in an additional loss of $0.2 million, net of tax.

Semiconductor Systems

In May 2013, the Company consummated the sale of certain assets and liabilities of the Semiconductor Systems business to Electro Scientific Industries, Inc. (“ESI”) for $9.7 million in cash, including working capital adjustments of $1.7 million received in September 2013. The Company recognized a $0.4 million loss on the sale, net of tax, in the consolidated statements of operations during the year ended December 31, 2013.

Scientific Lasers

In July 2014, the Company completed the sale of certain assets and liabilities of the Scientific Lasers business operating under the Continuum brand name for approximately $6.5 million, net of working capital adjustments, and recognized a $1.7 million loss, net of tax, in the consolidated statement of operations during the year ended December 31, 2014. In accordance with the purchase and sales agreement, $1.5 million of the sales proceeds is held in escrow until January 2016. The Company has recorded the $1.5 million escrow in other long term assets on the consolidated balance sheet.

The major components of the assets and liabilities of discontinued operations as of December 31, 2014 and 2013, respectively, are as follows (in thousands):

	2014		2013
Accounts receivable, net	$	95	$	5,361
Inventories		161		8,454
Other assets		375		4,021
Assets of discontinued operations	$	631	$	17,836
Accounts payable	$	16	$	2,393
Accrued expenses and other current liabilities		74		2,332
Other liabilities		234		1,418
Liabilities of discontinued operations	$	324	$	6,143

Assets and liabilities of discontinued operations as of December 31, 2014 primarily include the balances of the India JV.

The following table presents the operating results which are reported as discontinued operations in the Company’s consolidated statements of operations (in thousands):

	Year Ended December 31,
	2014			2013			2012
Sales from discontinued operations	$	10,514		$	33,792		$	72,356
Loss from discontinued operations, before income tax	$	(8,059	)	$	(3,361	)	$	(10,209	)
Loss from discontinued operations, net of tax	$	(5,607	)	$	(2,054	)	$	(10,974	)
Gain (loss) on disposal of discontinued operations, net of tax	$	(1,726	)	$	(592	)	$	2,255

The loss from discontinued operations during the year ended December 31, 2014 includes a $3.0 million fair value write-down of the Scientific Lasers business to its fair value less costs to sell and a $0.5 million fair value write-down of the India JV. The Company is currently in negotiations with the joint venture partner to dissolve the joint venture.

In 2012, the Company recorded an inventory provision of $1.9 million related to the Semiconductor Systems business. This provision was included in income (loss) from discontinued operations, net of tax, in the consolidated statement of operations. The increase in the inventory provision was caused by changes in industry trends in the memory repair market, which resulted in lower expected future demand for the Company’s memory repair products.

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Business Combinations

12 Months Ended

Dec. 31, 2014

Business Combinations [Abstract]

Business Combinations

3. Business Combinations

JADAK

On March 14, 2014, the Company acquired 100% of the outstanding equity interests of JADAK, LLC , JADAK Technologies, Inc., and Advanced Data Capture Corporation (collectively, “JADAK”), a North Syracuse, New York-based provider of optical data collection and machine vision technologies to OEM medical device manufacturers, for $93.7 million in cash, net of working capital adjustments. The Company expects that the addition of JADAK will enable the Company to offer a broader range of highly engineered enabling technologies to leading medical equipment manufacturers. JADAK contributed sales of $45.4 million and income from continuing operations before income taxes of $2.7 million for the year ended December 31, 2014.

The final purchase price allocation is as follows (in thousands):

	Amount
Cash	$	1,140
Accounts receivable		7,907
Inventory		6,865
Property and equipment		904
Intangible assets		40,250
Goodwill		44,584
Other assets		2,064
Total assets acquired		103,714
Accounts payable		3,057
Other liabilities		2,380
Deferred tax liabilities		3,481
Total liabilities assumed		8,918
Total purchase price		94,796
Less: Cash acquired		(1,140	)
Total purchase price, net of cash acquired	$	93,656

The fair value of JADAK intangible assets is comprised of the following (in thousands):

			Weighted Average
	Estimated Fair		Amortization
	Value		Period
Customer relationships	$	23,570	20 years
Developed technology		10,910	10 years
Trademarks and trade names		2,130	10 years
Backlog		1,810	1 year
Non-compete covenant		1,830	5 years
Total	$	40,250

The purchase price allocation resulted in $44.6 million of goodwill and $40.3 million of identifiable intangible assets, $61.8 million of which is expected to be deductible for tax purposes. Intangible assets are being amortized over their weighted average useful lives primarily based upon the pattern in which economic benefits related to such assets are expected to be realized. The amount of goodwill recorded represents the anticipated incremental value of future cash flow potential attributable to: (i) JADAK’s ability to develop and market new products and technologies; (ii) JADAK’s ability to develop relationships with new customers; and (iii) expected sales synergies from cross-selling current and future product offerings of both JADAK and the Company to OEM customers.

The following unaudited pro forma information presents the combined financial results for the Company and JADAK as if the acquisition of JADAK had been completed as of January 1, 2013 (in thousands, except per share information):

	Year Ended December 31,
	2014			2013
Sales	$	375,737		$	370,462
Income (loss) from continuing operations	$	(16,067	)	$	11,900
Earnings per share from continuing operations - Basic	$	(0.47	)	$	0.35
Earnings per share from continuing operations - Diluted	$	(0.47	)	$	0.35

The pro forma information for all periods includes the effects of acquisition accounting, including amortization charges from acquired intangible assets, interest expense on borrowings in connection with the acquisition, and the related tax effects as though the acquisition of JADAK had been consummated as of the beginning of 2013. These pro forma results exclude the impact of transaction costs included in the historical results and the related tax effects. The pro forma financial information is presented for comparative purposes only and is not necessarily indicative of the results of operations that actually would have been achieved if the acquisition had taken place at the beginning of 2013.

NDS

On January 15, 2013, the Company acquired 100% of the outstanding membership interests of NDS Surgical Imaging, LLC and 100% of the outstanding stock of NDS Surgical Imaging KK (collectively, “NDS”) for $80.8 million in cash consideration, net of working capital adjustments. In addition, a total of $5.4 million was held in escrow after the payment of closing working capital as indemnification for certain representations and warranty claims against the seller until the expiration of the escrow arrangement in July 2014. In September 2014, the Company received the full remaining amount held in escrow following the Company’s claims for breach of certain terms of the January 15, 2013 Securities Purchase Agreement for the acquisition of NDS. The escrow recovery was accounted for as a reduction to goodwill as the $5.4 million payment was clearly and directly related to the acquisition price. The escrow recovery resulted in a final adjusted NDS purchase price of $75.4 million.

The allocation of the purchase price is based upon a valuation of assets and liabilities acquired. Assets acquired and liabilities assumed have been recorded at their estimated fair values as of the acquisition date. The fair values of intangible assets were based on valuations using an income approach, with estimates and assumptions provided by management of NDS and the Company. The excess of the purchase price over the tangible assets, identifiable intangible assets and assumed liabilities was recorded as goodwill.

The total final purchase price allocation for the NDS acquisition was as follows (in thousands):

	Amount
Accounts receivable	$	10,327
Inventory		14,144
Property and equipment		2,426
Intangible assets		37,817
Goodwill		21,160
Other assets		1,782
Total assets acquired		87,656
Accounts payable		4,768
Other liabilities		7,149
Deferred tax liabilities		384
Total liabilities assumed		12,301
Total purchase price	$	75,355

The fair value of NDS intangible assets is comprised of the following (in thousands):

			Weighted Average
	Estimated Fair		Amortization
	Value		Period
Customer relationships	$	22,294	20 years
Developed technology		6,689	10 years
Trademarks and trade names		7,565	20 years
Backlog		1,269	1 year
Total	$	37,817

NDS contributed sales of $68.4 million and loss from continuing operations before income taxes of $3.4 million for the year ended December 31, 2013.

Acquisition-related Costs

The Company recognized acquisition costs of $0.7 million, $1.5 million and $0.7 million in the years ended December 31, 2014, 2013 and 2012, respectively, related to the acquisitions of JADAK and NDS. These amounts were included in restructuring and acquisition related costs.

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Commitments and Contingencies

12 Months Ended

Dec. 31, 2014

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

15. Commitments and Contingencies

Operating Leases

The Company leases certain equipment and facilities under operating lease agreements. Most of these lease agreements expire between 2015 and 2019. In the U.K., where longer lease terms are more common, the Company has a land lease that extends through 2078. During the years ended December 31, 2014, 2013 and 2012, the Company recorded lease expense of $4.1 million, $4.9 million and $4.1 million, respectively. In addition to the base rent, the Company is generally required to pay insurance, real estate taxes and maintenance costs which is recorded in lease expense.  

In connection with the sale of the Scientific Lasers business, the Company assigned to the buyer the lease for the facility in San Jose, California, where the Scientific Lasers business operated. The buyer assumed all of our rights and obligations under the original lease, including the duty to pay the rent for the remainder term of the lease. So long as the buyer performs its obligations as the tenant, as required by the Asset and Equity Purchase Agreement for its acquisition of the Scientific Lasers business, the Company has no responsibilities for the lease. If the buyer should cease performance under the lease, however, the landlord could still pursue the Company as the original tenant until February 28, 2019, the end of the lease term. The Company has indemnification rights against the buyer under the Asset and Equity Purchase Agreement. The lease associated with this facility has been excluded from the operating lease commitments table below.

Capital Leases

In 2014, the Company capitalized $10.4 million of assets which met the criteria under ASC 840-30, “Leases—Capitalized Leases,” which requires the Company to capitalize and depreciate the assets over the lease term.

Future minimum lease payments under operating and capital leases expiring subsequent to December 31, 2014, including operating leases associated with facilities that have been vacated as a result of the Company’s restructuring actions, are as follows (in thousands):

Year Ending December 31,	Operating Leases		Capital Leases(1)
2015	$	4,888	$	1,261
2016		4,065		1,261
2017		3,149		1,290
2018		2,821		860
2019		1,791		884
Thereafter		5,605		9,045
Total minimum lease payments	$	22,319	$	14,601

(1) Capital lease payments include interest payments of $4.3 million.

Purchase Commitments

As of December 31, 2014, the Company had unconditional commitments primarily for inventory purchases of $51.0 million. These purchase commitments are expected to be incurred as follows: $49.5 million in 2015, $1.2 million in 2016, and $0.3 million in 2017.

Legal Proceedings

The Company is subject to various legal proceedings and claims that arise in the ordinary course of business. The Company does not believe that the outcome of these claims will have a material adverse effect upon its financial condition or results of operations but there can be no assurance that any such claims, or any similar claims, would not have a material adverse effect upon its financial condition or results of operations.

Guarantees and Indemnifications

In the normal course of its operations, the Company executes agreements that provide for indemnification and guarantees to counterparties in transactions such as business dispositions, sale of assets, sale of products and operating leases. Additionally, the by-laws of the Company require it to indemnify certain current or former directors, officers, and employees of the Company against expenses incurred by them in connection with each proceeding in which he or she is involved as a result of serving or having served in certain capacities. Indemnification is not available with respect to a proceeding as to which it has been adjudicated that the person did not act in good faith in the reasonable belief that the action was in the best interests of the Company. Certain of our officers and directors are also a party to indemnification agreements with the Company. These indemnification agreements provide, among other things, that the director and officer shall be indemnified to the fullest extent permitted by applicable law against all expenses, judgments, fines and amounts paid in settlement actually and reasonably incurred by such officer or director in connection with any proceeding by reason of his or her relationship with the Company. In addition, the indemnification agreements provide for the advancement of expenses incurred by such director or officer in connection with any proceeding covered by the indemnification agreement, subject to the conditions set forth therein and to the extent such advancement is not prohibited by law. The indemnification agreements also set out the procedures for determining entitlement to indemnification, the requirements relating to notice and defense of claims for which indemnification is sought, the procedures for enforcement of indemnification rights, the limitations on and exclusions from indemnification, and the minimum levels of directors’ and officers’ liability insurance to be maintained by the Company.

On July 1, 2013, the Company provided a Guarantee (the “Guarantee”) in favor of the trustees of the U.K. Plan with respect to all present and future obligations and liabilities (whether actual or contingent and whether owed jointly or severally and in any capacity whatsoever) of GSI Group Limited, a wholly owned subsidiary of GSI Group Inc.

Credit Risks and Other Uncertainties

The Company maintains financial instruments such as cash and cash equivalents and trade receivables. From time to time, certain of these instruments may subject the Company to concentrations of credit risk whereby one institution may hold a significant portion of the cash and cash equivalents, or one customer may compose a large portion of the accounts receivable balances.

There was no significant concentration of credit risk related to the Company’s position in trade accounts receivable as no individual customer represented 10% or more of the Company’s outstanding accounts receivable at December 31, 2014 and 2013. Credit risk with respect to trade accounts receivables is generally minimized because of the diversification of the Company’s operations, as well as its large customer base and its geographical dispersion.

Certain of the components and materials included in the Company’s products are currently obtained from single source suppliers. There can be no assurance that a disruption of this outside supply would not create substantial manufacturing delays and additional cost to the Company.

The Company’s operations involve a number of other risks and uncertainties including, but not limited to, the effects of general economic conditions, rapidly changing technology, and international operations.

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Share-Based Compensation

12 Months Ended

Dec. 31, 2014

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Share-Based Compensation

11. Share-Based Compensation

Capital Stock

The authorized capital of the Company consists of an unlimited number of common shares without nominal or par value. Holders of common shares are entitled to one vote per share. Holders of common shares are entitled to receive dividends, if and when declared by the Board of Directors, and to share ratably in its assets legally available for distribution to the stockholders in the event of liquidation. Holders of common shares have no redemption or conversion rights.

2010 Incentive Award Plan

In November 2010, the Company’s shareholders approved the 2010 Incentive Award Plan (the “2010 Incentive Plan”), under which the Company may grant share-based compensation awards to employees, consultants and directors. In May 2014, the Company’s shareholders approved the amended and restated 2010 Incentive Award Plan (the “Amended and Restated 2010 Incentive Plan”). The maximum number of shares which can be issued pursuant to the Amended and Restated 2010 Incentive Plan is 4,398,613, subject to adjustment as set forth in the Amended and Restated 2010 Incentive Plan. The Amended and Restated 2010 Incentive Plan provides for the grant of incentive stock options, non-qualified stock options, restricted stock, restricted stock units, stock appreciation rights, deferred stock, deferred stock units, dividends equivalents, performance awards and stock payments (collectively referred to as “Awards”) to employees, consultants and directors. The Amended and Restated 2010 Incentive Plan allows the Company to continue to grant awards intended to constitute “performance-based compensation” for purposes of Section 162(m) of the Internal Revenue Code of 1986, as amended, and includes certain provisions that reflect good corporate governance practices. The Amended and Restated 2010 Incentive Award Plan provides for specific limits on the number of shares that may be subject to different types of Awards and the amount of cash that can be paid with respect to different types of Awards. The Amended and Restated 2010 Incentive Plan will expire and no further Awards may be granted after April 9, 2024, As of December 31, 2014, there are 2,284,553 shares available for future awards under the Amended and Restated 2010 Incentive Plan.

Restricted stock units represent the right to receive common shares or the fair market value of such shares in cash as determined by the administrator of the Amended and Restated 2010 Incentive Plan at a specified date in the future, subject to forfeiture of such right. The purchase price for restricted stock units, if any, will be determined by the administrator of the Amended and Restated 2010 Incentive Plan on an award-by-award basis. Deferred stock units entitle the recipient thereof to receive one share of common stock on the date such deferred stock unit becomes vested and other conditions are removed or expire, if applicable or upon a specified settlement date thereafter. Deferred stock units are typically awarded without payment of consideration.

Shares subject to Awards that have expired, forfeited or settled in cash, or repurchased by the Company at the same price paid by the awardee may be added back to the number of shares available for grant under the Amended and Restated 2010 Incentive Plan and may be granted as new Awards. Shares that are used to pay the exercise price for an option, shares withheld to pay taxes, with respect to an option or stock appreciation rights, shares subject to a stock appreciation right that are not issued in connection with the stock settlement of the stock appreciation right on exercise thereof, and shares purchased on the open market with the cash proceeds from the exercise of options will not be added back to the number of shares available for grant under the Amended and Restated 2010 Incentive Plan. Shares issued to satisfy Awards under the Amended and Restated 2010 Incentive Plan may be previously authorized but unissued shares, treasury shares or shares bought on the open market.

The table below summarizes activities relating to restricted stock units issued and outstanding under the 2010 Incentive Plan during year ended December 31, 2014:

	Restricted Stock Units (In thousands)			Weighted Average Grant Date Fair Value		Weighted Average Remaining Vesting Period in Years	Aggregate Intrinsic Value (1) (In thousands)
Unvested at December 31, 2013		809		$	10.20
Granted		338		$	12.26
Vested		(361	)	$	10.79
Forfeited		(37	)	$	11.06
Unvested at December 31, 2014		749		$	10.80	1.82 years	$	11,019
Expected to vest as of December 31, 2014		734		$	10.80	1.82 years	$	10,797

(1) The aggregate intrinsic value is calculated based on the fair value of $14.72 per share of the Company’s common stock on December 31, 2014 due to the fact that the restricted stock units carry a $0 purchase price.

The total fair value of restricted stock units that vested in 2014, based on the market price of the underlying stock on the day of vesting, was $4.5 million.

Other Issuances

On September 2, 2010, the Company granted 83,337 deferred stock units to the members of its Board of Directors at a weighted average grant date fair value of $6.66 per share. The deferred stock units were issued pursuant to standalone award agreements that are independent of an equity incentive plan. These transactions were exempt from registration under the Securities Act of 1933 pursuant to Section 4(2) of such act as transactions not involving a public offering. Each deferred stock unit represents the right to receive one common share of the Company on the date of termination of the holder’s service with the Company’s Board of Directors. The deferred stock units were fully vested and nonforfeitable on the date of grant.

In connection with the JADAK acquisition on March 14, 2014, the Company acquired 100% of the outstanding stock of JADAK. In addition to the total purchase price, the Company granted restricted stock units in an aggregate of 180,000 shares to the former owner-managers of JADAK as employment inducement awards. These restricted stock units are performance-based awards and will vest after two years if certain financial targets and service conditions have been achieved.

Share-Based Compensation Expense

The table below summarizes share-based compensation expense recorded in income from continuing operations (in thousands):

	Year Ended December 31,
	2014		2013		2012
Selling, general and administrative	$	3,967	$	5,144	$	4,339
Research and development and engineering		196		180		112
Cost of sales		166		118		83
Restructuring and acquisition related costs		322		125		51
Total share-based compensation expense	$	4,651	$	5,567	$	4,585

The expense recorded during each of the years ended December 31, 2014, 2013 and 2012 included $0.5 million, $0.5 million and $0.6 million, respectively, related to deferred stock units granted to the members of the Company’s Board of Directors pursuant to the Company’s Amended and Restated 2010 Incentive Plan. The expense associated with the respective deferred stock units was recognized in full on the respective date of grant, as the deferred stock units were fully vested and nonforfeitable upon grant.

The Company’s restricted stock unit awards have generally been issued with a three-year vesting period and vest based solely on service conditions. Accordingly, the Company generally recognizes compensation expense on a straight-line basis over the requisite service period. The Company reduces the compensation expense by an estimated forfeiture rate which is based on anticipated forfeitures and actual experience.

As of December 31, 2014, the Company’s outstanding equity awards for which compensation expense will be recognized in the future consist of time-based restricted stock units granted under the Amended and Restated 2010 Incentive Plan and the JADAK inducement awards. The Company expects to record aggregate share-based compensation expense of $5.8 million, net of an estimate of forfeitures, subsequent to December 31, 2014, over a weighted average period of 1.8 years, for all outstanding equity awards.

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Employee Benefit Plans - Additional Information (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Employee Benefit Plan [Line Items]
Long term portions of pension plan liabilities	$ 6,037,000	$ 2,322,000
Defined benefit plan contributions by employer	2,600,000	1,700,000	1,300,000
Global Equities
Employee Benefit Plan [Line Items]
Defined benefit plan, target plan asset allocations	60.00%
Global Bonds
Employee Benefit Plan [Line Items]
Defined benefit plan, target plan asset allocations	23.00%
Alternative Assets
Employee Benefit Plan [Line Items]
Defined benefit plan, target plan asset allocations	7.00%
Cash
Employee Benefit Plan [Line Items]
Defined benefit plan, target plan asset allocations	10.00%
Funded Status
Employee Benefit Plan [Line Items]
Current portions of pension plan liabilities	100,000
Long term portions of pension plan liabilities	6,000,000
Pension Plan
Employee Benefit Plan [Line Items]
Accrued retirement allowance amount transfer period	4 years
UNITED KINGDOM
Employee Benefit Plan [Line Items]
Funding valuation period	3 years
Defined benefit plan contributions by employer	1,000,000	847,000
Defined benefit plan estimated employer contributions for 2014	1,000,000
JAPAN
Employee Benefit Plan [Line Items]
Defined benefit plan contributions by employer	253,000	521,000
Defined benefit plan estimated employer contributions for 2014	$ 100,000

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Fair Value Measurements

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

Fair Value Measurements

7. Fair Value Measurements

ASC 820, “Fair Value Measurement,” establishes a fair value hierarchy based on three levels of inputs, of which the first two are considered observable and the third is considered unobservable:

Level 1: Quoted prices for identical assets or liabilities in active markets which the Company can access.

Level 2: Observable inputs other than those described in Level 1.

Level 3: Unobservable inputs.

The Company’s cash equivalents are investments in money market accounts, which represent the only asset the Company measures at fair value on a recurring basis. The Company determines the fair value of our cash equivalents using a market approach based on quoted prices in active markets. The fair values of cash, accounts receivable, income taxes receivable, accounts payable, income taxes payable and accrued expenses and other current liabilities approximate their carrying values because of their short-term nature.

The following table summarizes the fair values of our financial assets as of December 31, 2014 (in thousands):

			Quoted Prices in				Significant Other
			Active Markets for		Significant Other		Unobservable
			Identical Assets		Observable Inputs		Inputs
	Fair Value		(Level 1)		(Level 2)		(Level 3)
Assets
Cash equivalents	$	2,255	$	2,255	$	—	$	—

The following table summarizes the fair values of our financial assets as of December 31, 2013 (in thousands):

			Quoted Prices in				Significant Other
			Active Markets for		Significant Other		Unobservable
			Identical Assets		Observable Inputs		Inputs
	Fair Value		(Level 1)		(Level 2)		(Level 3)
Assets
Cash equivalents	$	3,078	$	3,078	$	—	$	—

Except for assets and liabilities acquired from the JADAK acquisition, as disclosed in Note 3 and the NDS impairment, as discussed in Note 6, there were no assets and liabilities that were measured at fair value on a non-recurring basis during 2014. The following table summarizes assets and liabilities that were measured at fair value on a non-recurring basis during 2012 (in thousands):

	Quoted Prices in		Significant		Significant
	Active Markets		Other		Other
	for Identical		Observable		Unobservable
	Assets		Inputs		Inputs		Total
	(Level 1)		(Level 2)		(Level 3)		Losses
Facility impairment	$	—	$	—	$	856	$	856

During the year ended December 31, 2012, the Company recorded non-recurring fair value measurements related to the impairment of our Orlando, Florida facility. As part of our periodic assessment of assets of discontinued operations, the Company recorded an impairment in the third quarter of 2012 on the facility to reduce the book value to the estimated fair value of the building, less costs to sell. The estimated fair value was determined using a combination of the income approach and comparable sales approach of similar properties within the Orlando, Florida area using information from third party real estate agents.

See Note 10 for discussion of the estimated fair value of the Company’s outstanding debt and Note 12 for discussion of the estimated fair value of the Company’s pension plan assets.

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Summary of Changes in Goodwill (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014
Goodwill And Intangible Assets Disclosure [Abstract]
Balance at beginning of year	$ 71,156
Goodwill acquired from the JADAK acquisition	44,584
Recovery of escrow from the NDS acquisition	(5,419)
NDS goodwill impairment	(19,575)
Balance at end of year	$ 90,746

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Depreciation and Amortization by Reportable Segments (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Depreciation and Amortization
Depreciation and Amortization	$ 24,421	$ 19,950	$ 12,683
Laser Products
Depreciation and Amortization
Depreciation and Amortization	6,481	6,335	6,448
Medical Technologies
Depreciation and Amortization
Depreciation and Amortization	13,254	8,808	702
Precision Motion
Depreciation and Amortization
Depreciation and Amortization	1,943	1,979	2,066
Corporate, Shared Services and Unallocated
Depreciation and Amortization
Depreciation and Amortization	$ 2,743	$ 2,828	$ 3,467

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Accumulated Other Comprehensive Income (Loss)

12 Months Ended

Dec. 31, 2014

Equity [Abstract]

Accumulated Other Comprehensive Income (Loss)

5. Accumulated Other Comprehensive Income (Loss)

Comprehensive income (loss) is defined as net income or loss and other changes in stockholders’ equity that do not represent transactions with stockholders or in the Company’s stock. Changes in accumulated other comprehensive income (loss) is as follows (in thousands):

	Total accumulated
	other			Foreign currency
	comprehensive			translation			Pension
	income (loss)			adjustment			liability
Balance at December 31, 2011	$	(5,024	)	$	2,809		$	(7,833	)
Other comprehensive loss		(6,973	)		(3,020	)		(3,953	)
Amounts reclassified from other comprehensive income (loss) (1)		2,248			1,510			738
Balance at December 31, 2012		(9,749	)		1,299			(11,048	)
Other comprehensive income		2,686			54			2,632
Amounts reclassified from other comprehensive income (loss) (1)		721			—			721
Balance at December 31, 2013	$	(6,342	)	$	1,353		$	(7,695	)
Other comprehensive loss		(10,488	)		(6,968	)		(3,520	)
Amounts reclassified from other comprehensive income (loss) (1)		374			—			374
Balance at December 31, 2014	$	(16,456	)	$	(5,615	)	$	(10,841	)

(1) The amounts reclassified from other comprehensive income (loss) were included in selling, general and administrative expenses in the consolidated statements of operations.

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Goodwill, Intangible Assets and Impairment Charges

12 Months Ended

Dec. 31, 2014

Goodwill And Intangible Assets Disclosure [Abstract]

Goodwill, Intangible Assets and Impairment Charges

6. Goodwill, Intangible Assets and Impairment Charges

Impairment Charges

The most recent annual goodwill and indefinite-lived intangible asset impairment test was performed as of the beginning of the second quarter of 2014, noting no impairment. Implied fair values of all reporting units exceeded their carrying values by at least 10%. For the annual impairment test performed during the second quarter of 2014, the Company forecasted growth in the NDS business due to expected new product launches in 2014, higher demand for NDS’s current products, and an expectation that all products of the NDS business would continue to be sold.

During the fourth quarter of 2014, the Company completed its annual operating plan for the NDS business following the MEDICA and RSNA tradeshows, two main tradeshows for the NDS business. Expectations for sales and operating profit were lowered significantly versus prior forecasts. The lower expectations for sales and operating profit were driven by a strategic decision to discontinue certain NDS products, lack of seasonal uptick during the fourth quarter of 2014 attributable to slower than expected hospital capital expenditures, and lower than expected customer orders from the fourth quarter tradeshows.

In considering the above mentioned factors, the Company determined that a triggering event occurred in the fourth quarter of 2014 and that an interim impairment review of the goodwill and intangible assets related to the NDS reporting unit was necessary.  First, the Company performed a long-lived asset recoverability test in accordance with ASC 360-10-35-15, “Impairment or Disposal of Long-Lived Assets”, on the lowest level of identifiable cash flows, which was determined to be the NDS business.  The recoverability test compared the carrying value of the NDS business to the undiscounted cash flows. As a result of this recoverability test, the Company determined that the assets were not recoverable.  The Company then determined the fair value of the NDS business using a discounted cash flow methodology, which resulted in a $21.8 million intangible assets impairment charge in the fourth quarter of 2014. The impairment charge is reflected in the operating results of the Medical Technologies segment.  

Subsequent to impairing the NDS business’s long-lived assets, step one of the goodwill impairment analysis was performed.  As the carrying value of the NDS reporting unit exceeded its implied fair value, the Company performed the second step of the goodwill impairment test, comparing the implied fair value of the reporting unit’s goodwill with its carrying amount to measure the impairment loss. The implied fair value of goodwill is determined in the same manner as the amount of goodwill recognized in a business combination, whereby the estimated fair value of the reporting unit is allocated to all of the assets and liabilities of that reporting unit as if the reporting unit had been acquired in a business combination and the fair value of the reporting unit was the purchase price paid. If the carrying amount of the reporting unit’s goodwill exceeds its implied fair value, an impairment loss is recognized in an amount equal to that excess. After completing the second step of the goodwill impairment test, the Company recorded a $19.6 million goodwill impairment charge in the fourth quarter of 2014. The impairment charge is reflected in the operating results of the Medical Technologies segment.    

The results of the impairment review as of December 31, 2014 are summarized in the following table (in thousands):

	Pre-Impairment Net Carrying Value		Impairment Charge			Post-Impairment Net Carrying Value
Goodwill	$	110,321	$	(19,575	)	$	90,746
Intangible assets		89,109		(21,867	)		67,242
Total	$	199,430	$	(41,442	)	$	157,988

The Company did not have any goodwill or indefinite-lived intangible asset impairment charges during the years ended December 31, 2013 and 2012.

Goodwill

Goodwill is recorded when the consideration for a business combination exceeds the fair value of net tangible and identifiable intangible assets acquired.

The following table summarizes changes in goodwill during the year ended December 31, 2014 (in thousands):

	December 31, 2014
Balance at beginning of year	$	71,156
Goodwill acquired from the JADAK acquisition		44,584
Recovery of escrow from the NDS acquisition		(5,419	)
NDS goodwill impairment		(19,575	)
Balance at end of year	$	90,746

Goodwill acquired from the JADAK acquisition, the NDS impairment and the recovery of escrow from the NDS acquisition is reflected in the Medical Technologies segment. Goodwill by reportable segment as of December 31, 2014 is as follows (in thousands):

	Reportable Segment
	Laser Products			Medical Technologies			Precision Motion			Total
Goodwill	$	132,954		$	82,730		$	26,291		$	241,975
Accumulated impairment of goodwill		(102,461	)		(31,722	)		(17,046	)		(151,229	)
Total	$	30,493		$	51,008		$	9,245		$	90,746

Goodwill by reportable segment as of December 31, 2013 is as follows (in thousands):

	Reportable Segment
	Laser Products			Medical Technologies			Precision Motion			Total
Goodwill	$	132,954		$	43,565		$	26,291		$	202,810
Accumulated impairment of goodwill		(102,461	)		(12,147	)		(17,046	)		(131,654	)
Total	$	30,493		$	31,418		$	9,245		$	71,156

Intangible Assets

Intangible assets as of December 31, 2014 and 2013, respectively, are summarized as follows (in thousands):

	December 31, 2014
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Remaining Life (Years)
Amortizable intangible assets:
Patents and acquired technologies	$	78,253	$	(62,010	)	$	16,243		7.5
Customer relationships		63,029		(31,531	)		31,498		14.7
Customer backlog		1,810		(1,641	)		169		0.2
Non-compete covenant		1,830		(366	)		1,464		4.2
Trademarks and trade names		10,205		(5,364	)		4,841		9.8
Amortizable intangible assets		155,127		(100,912	)		54,215		11.8
Non-amortizable intangible assets:
Trade names		13,027		—			13,027
Totals	$	168,154	$	(100,912	)	$	67,242

	December 31, 2013
	GrossCarrying Amount		Accumulated Amortization			Net Carrying Amount		Weighted Average Remaining Life (Years)
Amortizable intangible assets:
Patents and acquired technologies	$	68,500	$	(56,327	)	$	12,173		5.3
Customer relationships		55,585		(24,340	)		31,245		13.9
Customer backlog		1,269		(1,269	)		—		—
Trademarks and trade names		13,378		(4,530	)		8,848		16.4
Amortizable intangible assets		138,732		(86,466	)		52,266		12.3
Non-amortizable intangible assets:
Trade names		13,027		—			13,027
Totals	$	151,759	$	(86,466	)	$	65,293

All definite-lived intangible assets are amortized either on a straight-line basis or an economic benefit basis over their remaining life. Amortization expense for customer relationships and definite-lived trademarks, trade names and other intangibles is included in operating expenses in the accompanying consolidated statements of operations. Amortization expense for patents and acquired technologies is included in cost of goods sold in the accompanying consolidated statements of operations. Amortization expense is as follows (in thousands):

	Year Ended December 31,
	2014		2013		2012
Amortization expense – cost of sales	$	6,143	$	5,280	$	3,165
Amortization expense – operating expenses		10,262		7,270		2,650
Total amortization expense	$	16,405	$	12,550	$	5,815

Estimated amortization expense for each of the five succeeding years and thereafter as of December 31, 2014 is as follows (in thousands):

Year Ending December 31,	Cost of Sales		Operating Expenses		Total
2015	$	4,255	$	6,532	$	10,787
2016		3,143		6,695		9,838
2017		2,868		6,062		8,930
2018		1,434		5,511		6,945
2019		1,207		3,734		4,941
Thereafter		3,336		9,438		12,774
Total	$	16,243	$	37,972	$	54,215

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Earnings (Loss) per Share

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Earnings (Loss) per Share

8. Earnings (Loss) per Share

Basic earnings (loss) per common share is computed by dividing net income (loss) by the weighted average number of common shares outstanding during the year. For diluted earnings (loss) per common share, the denominator also includes the dilutive effect of outstanding deferred stock units and restricted stock units determined using the treasury stock method. Dilutive effects of contingently issuable shares are included in the weighted average dilutive share calculation when the contingencies have been resolved. For years in which net losses are generated, the dilutive potential common shares are excluded from the calculation of diluted earnings per share as the effect would be anti-dilutive.

The following table sets forth the computation of basic and diluted earnings (loss) per share (in thousands, except per share amounts):

	Year Ended December 31,
	2014			2013			2012
Numerators:
Income (loss) from continuing operations	$	(16,909	)	$	9,977		$	28,297
Consolidated loss from discontinued operations		(7,333	)		(2,646	)		(8,719	)
Less: income attributable to noncontrolling interest		(10	)		(22	)		(40	)
Loss from discontinued operations attributable to GSI Group Inc.		(7,343	)		(2,668	)		(8,759	)
Net income (loss) attributable to GSI Group Inc.	$	(24,252	)	$	7,309		$	19,538
Denominators:
Weighted average common shares outstanding— basic		34,352			34,073			33,775
Dilutive potential common shares (1)		—			323			161
Weighted average common shares outstanding— diluted		34,352			34,396			33,936
Antidilutive common shares excluded from above		439			246			244
Basic Earnings (Loss) per Common Share:
From continuing operations	$	(0.49	)	$	0.29		$	0.84
From discontinued operations	$	(0.21	)	$	(0.08	)	$	(0.26	)
Basic earnings per share attributable to GSI Group Inc.	$	(0.70	)	$	0.21		$	0.58
Diluted Earnings (Loss) per Common Share:
From continuing operations	$	(0.49	)	$	0.29		$	0.84
From discontinued operations	$	(0.21	)	$	(0.08	)	$	(0.26	)
Diluted earnings per share attributable to GSI Group Inc.	$	(0.70	)	$	0.21		$	0.58

(1) Due to the Company’s net loss position for the year ended December 31, 2014, all potentially dilutive shares are excluded as their effect would have been anti-dilutive.

Common Stock Repurchases

In October 2013, the Company’s Board of Directors authorized a share repurchase plan under which the Company may repurchase outstanding shares of the Company’s common stock up to an aggregate amount of $10.0 million. The shares may be repurchased from time to time, at the Company’s discretion, based on ongoing assessment of the capital needs of the business, the market price of the Company’s common stock, and general market conditions. Shares may also be repurchased through an accelerated stock purchase agreement, on the open market or in privately negotiated transactions in accordance with applicable federal securities laws. Repurchases may be made under certain SEC regulations, which would permit common stock to be purchased when the Company would otherwise be prohibited from doing so under insider trading laws. The share repurchase plan does not obligate the Company to acquire any particular amount of common stock. No time limit was set for the completion of the share repurchase program, and the program may be suspended or discontinued at any time. After the adoption of the share repurchase plan, the Company repurchased 50 thousand shares of its common stock for an aggregate purchase price of $0.5 million at an average price of $10.49 per share in December 2013. No repurchases occurred during the year ended December 31, 2014.

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Estimated Amortization Expense (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
2015	$ 10,787
2016	9,838
2017	8,930
2018	6,945
2019	4,941
Thereafter	12,774
Amortizable intangible assets, net carrying amount	54,215	52,266
Cost of Sales
Finite-Lived Intangible Assets [Line Items]
2015	4,255
2016	3,143
2017	2,868
2018	1,434
2019	1,207
Thereafter	3,336
Amortizable intangible assets, net carrying amount	16,243
Operating Expense
Finite-Lived Intangible Assets [Line Items]
2015	6,532
2016	6,695
2017	6,062
2018	5,511
2019	3,734
Thereafter	9,438
Amortizable intangible assets, net carrying amount	$ 37,972

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Net Periodic Cost for U.K Plan and Japan Plan (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
UNITED KINGDOM
Components of the net periodic pension cost:
Service cost	$ 0	$ 0
Interest cost	1,589	1,403	1,359
Expected return on plan assets	(1,958)	(1,595)	(1,270)
Amortization of actuarial losses	374	668	392
Net periodic pension cost	5	476	481
JAPAN
Components of the net periodic pension cost:
Service cost	101	99	121
Interest cost	13	10	15
Expected return on plan assets	(6)	(7)
Amortization of the unrecognized transition obligation	29	14	37
Amortization of prior service cost	18	12	3
Other	18
Net periodic pension cost	$ 173	$ 128	$ 176

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Assets and Liabilities Measured at Fair Value on Non-recurring Basis (Details) (Facility impairment, USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value assets measured on nonrecurring basis	$ 856
Fair value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value assets measured on nonrecurring basis	$ 856

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Summary of Restructuring Costs for Each Segment and Unallocated Corporate Costs (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Restructuring Cost And Reserve [Line Items]
Restructuring Costs	$ 414	$ 3,757
2011 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring Costs	389	1,287	1,584
Cumulative Costs	4,054
2011 Restructuring | Laser Products
Restructuring Cost And Reserve [Line Items]
Restructuring Costs	(106)	1,042	386
Cumulative Costs	1,939
2011 Restructuring | Medical Technologies
Restructuring Cost And Reserve [Line Items]
Restructuring Costs		48	0
Cumulative Costs	48
2011 Restructuring | Precision Motion
Restructuring Cost And Reserve [Line Items]
Restructuring Costs		5	52
Cumulative Costs	122
2011 Restructuring | Corporate, Shared Services and Unallocated costs
Restructuring Cost And Reserve [Line Items]
Restructuring Costs	495	192	1,146
Cumulative Costs	1,945
2012 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring Costs			1,758
2012 Restructuring | Laser Products
Restructuring Cost And Reserve [Line Items]
Restructuring Costs			501
2012 Restructuring | Precision Motion
Restructuring Cost And Reserve [Line Items]
Restructuring Costs			951
2012 Restructuring | Corporate, Shared Services and Unallocated costs
Restructuring Cost And Reserve [Line Items]
Restructuring Costs			306
2013 Restructuring
Restructuring Cost And Reserve [Line Items]
Restructuring Costs		2,463
2013 Restructuring | Laser Products
Restructuring Cost And Reserve [Line Items]
Restructuring Costs		836
2013 Restructuring | Medical Technologies
Restructuring Cost And Reserve [Line Items]
Restructuring Costs		806
2013 Restructuring | Precision Motion
Restructuring Cost And Reserve [Line Items]
Restructuring Costs		378
2013 Restructuring | Corporate, Shared Services and Unallocated costs
Restructuring Cost And Reserve [Line Items]
Restructuring Costs		$ 443

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Amortization Expense of Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 31, 2013	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization expense – cost of sales									$ 6,143	$ 5,280	$ 3,165
Amortization expense – operating expenses	2,799	2,843	2,876	1,744	1,645	1,772	1,617	2,236	10,262	7,270	2,650
Total amortization expense									$ 16,405	$ 12,550	$ 5,815

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Components of Income (Loss) from Continuing Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 31, 2013	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income (loss) from continuing operations before income taxes:
Income (loss) from continuing operations before income taxes	$ (34,303)	$ 7,132	$ 5,463	$ 3,793	$ 5,945	$ 3,777	$ 4,303	$ 2,152	$ (17,915)	$ 16,177	$ 16,702
CANADA
Income (loss) from continuing operations before income taxes:
Foreign									(20,212)	(5,366)	(5,199)
UNITED STATES
Income (loss) from continuing operations before income taxes:
U.S.									(9,661)	12,838	18,987
Other Countries
Income (loss) from continuing operations before income taxes:
Foreign									$ 11,958	$ 8,705	$ 2,914

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Earnings (Loss) per Share (Tables)

12 Months Ended

Dec. 31, 2014

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings (Loss) Per Share

The following table sets forth the computation of basic and diluted earnings (loss) per share (in thousands, except per share amounts):

	Year Ended December 31,
	2014			2013			2012
Numerators:
Income (loss) from continuing operations	$	(16,909	)	$	9,977		$	28,297
Consolidated loss from discontinued operations		(7,333	)		(2,646	)		(8,719	)
Less: income attributable to noncontrolling interest		(10	)		(22	)		(40	)
Loss from discontinued operations attributable to GSI Group Inc.		(7,343	)		(2,668	)		(8,759	)
Net income (loss) attributable to GSI Group Inc.	$	(24,252	)	$	7,309		$	19,538
Denominators:
Weighted average common shares outstanding— basic		34,352			34,073			33,775
Dilutive potential common shares (1)		—			323			161
Weighted average common shares outstanding— diluted		34,352			34,396			33,936
Antidilutive common shares excluded from above		439			246			244
Basic Earnings (Loss) per Common Share:
From continuing operations	$	(0.49	)	$	0.29		$	0.84
From discontinued operations	$	(0.21	)	$	(0.08	)	$	(0.26	)
Basic earnings per share attributable to GSI Group Inc.	$	(0.70	)	$	0.21		$	0.58
Diluted Earnings (Loss) per Common Share:
From continuing operations	$	(0.49	)	$	0.29		$	0.84
From discontinued operations	$	(0.21	)	$	(0.08	)	$	(0.26	)
Diluted earnings per share attributable to GSI Group Inc.	$	(0.70	)	$	0.21		$	0.58

· Due to the Company’s net loss position for the year ended December 31, 2014, all potentially dilutive shares are excluded as their effect would have been anti-dilutive.

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Summary of Fair Values of Assets Acquired and Liabilities Assumed Purchase Price Allocation (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended		0 Months Ended	1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Mar. 14, 2014	Sep. 30, 2014	Jan. 15, 2013
Business Acquisition [Line Items]
Goodwill	$ 90,746	$ 71,156
Total purchase price, net of cash acquired	88,238	80,773
JADAK Acquisition
Business Acquisition [Line Items]
Cash			1,140
Accounts receivable			7,907
Inventory			6,865
Property and equipment			904
Intangible assets			40,250
Goodwill			44,584
Other assets			2,064
Total assets acquired			103,714
Accounts payable			3,057
Other liabilities			2,380
Deferred tax liabilities			3,481
Total liabilities assumed			8,918
Total purchase price			94,796
Less: Cash acquired			(1,140)
Total purchase price, net of cash acquired			93,656
NDS Acquisition
Business Acquisition [Line Items]
Accounts receivable					10,327
Inventory					14,144
Property and equipment					2,426
Intangible assets					37,817
Goodwill					21,160
Other assets					1,782
Total assets acquired					87,656
Accounts payable					4,768
Other liabilities					7,149
Deferred tax liabilities					384
Total liabilities assumed					12,301
Total purchase price					75,355
Total purchase price, net of cash acquired				$ 75,400

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Income Taxes

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Income Taxes

13. Income Taxes

Components of the Company’s income (loss) from continuing operations before income taxes are as follows (in thousands):

	Year Ended December 31,
	2014			2013			2012
Income (loss) from continuing operations before income taxes:
Canadian	$	(20,212	)	$	(5,366	)	$	(5,199	)
U.S.		(9,661	)		12,838			18,987
Other		11,958			8,705			2,914
Total	$	(17,915	)	$	16,177		$	16,702

Components of the Company’s income tax provision (benefit) are as follows (in thousands):

	Year Ended December 31,
	2014			2013		2012
Current
Canadian	$	175		$	—	$	—
U.S.		3,615			1,662		3,560
Other		1,940			652		2,275
		5,730			2,314		5,835
Deferred
Canadian		—			—		—
U.S.		(6,731	)		2,206		(14,467	)
Other		(5	)		1,680		(2,963	)
		(6,736	)		3,886		(17,430	)
Total	$	(1,006	)	$	6,200	$	(11,595	)

The Company is incorporated in Canada and therefore uses the Canadian statutory rate. The reconciliation of the statutory Canadian income tax rate to the effective rate related to income from continuing operations before income taxes is as follows (in thousands, except percentage data):

	Year Ended December 31,
	2014			2013			2012
Statutory Canadian tax rate		27.00	%		26.00	%		25.00	%
Expected income tax provision at statutory Canadian tax rate	$	(4,837	)	$	4,206		$	4,176
International tax rate differences		(1,132	)		156			1,863
Permanent differences		(88	)		106			227
Change in valuation allowance		4,809			(3,076	)		(17,564	)
Prior year provision to return differences		962			(312	)		37
Net operating loss expirations		—			4,538			—
Statutory tax rate change		(13	)		354			316
Uncertain tax positions		134			259			(4,093	)
Tax credits		(1,678	)		(938	)		—
State income taxes, net		(271	)		148			478
IRS audit		241			680			1,846
Withholding and other taxes		421			321			488
Other		116			(242	)		631
Goodwill impairment		330			—			—
Reported income tax provision (benefit)	$	(1,006	)	$	6,200		$	(11,595	)
Effective tax rate		5.6	%		38.3	%		(69.4	)%

Deferred income taxes result principally from temporary differences in the recognition of certain revenue and expense items and operating loss carryforwards and credit carryforwards for financial and tax reporting purposes. Significant components of the Company’s deferred tax assets and liabilities as of December 31, 2014 and 2013 are as follows (in thousands):

	December 31,
	2014			2013
Deferred tax assets
Losses & IRC Section 163(j) carryforwards	$	12,742		$	16,059
Compensation related deductions		3,749			2,649
Tax credits		3,502			3,817
Restructuring related liabilities		64			406
Inventory		4,495			4,939
Depreciation		683			938
Amortization		—			—
Warranty		876			888
Other		2,206			824
Total deferred tax assets		28,317			30,520
Valuation allowance for deferred tax assets		(14,495	)		(11,534	)
Net deferred income tax assets	$	13,822		$	18,986
Deferred tax liabilities
Equity investment	$	(1,594	)	$	(1,025	)
Depreciation		(341	)		(583	)
Amortization		(36	)		(11,417	)
Unrealized currency gain/loss		(2,595	)		(983	)
Other		(525	)		(326	)
Total deferred tax liabilities	$	(5,091	)	$	(14,334	)
Net deferred income tax assets (liabilities)	$	8,731		$	4,652

In determining its 2014, 2013, and 2012 income tax provisions, the Company calculated deferred tax assets and liabilities for each separate jurisdiction. The Company then considered a number of factors, including positive and negative evidence related to the realization of its deferred tax assets to determine whether a valuation allowance should be recognized with respect to its deferred tax assets.

In 2014, the Company recorded valuation allowances against its current year net operating losses in certain tax jurisdictions of $0.3 million and increased valuation allowance recorded on certain U.S. state tax net operating losses of $0.3 million and capital loss carryforward of $0.4 million.

In 2013, the Company adjusted a portion of its Canadian loss carryforward and the related valuation allowance of $4.8 million. The Company also recorded valuation allowances against its current year net operating losses in certain tax jurisdictions of $1.3 million and released valuation allowance previously recorded on certain U.S. state tax credits of $0.3 million. Additionally, the Company adjusted the carrying value of deferred tax assets on net operating losses and tax credits and their related valuation allowance in Canada and the U.K. as a result of changes in statutory tax rates amounting to $0.7 million in 2013.

In 2012, the Company recognized a tax benefit of $15.3 million due to the release of a portion of the valuation allowance on deferred tax assets which the Company believes are more likely than not to be realized. Our effective income tax rate benefited from the availability of previously unrealized deferred tax assets which the Company utilized to reduce tax expense for the U.S., U.K., France, and Japan for income tax purposes.

Valuation allowance continues to be provided on U.S. capital loss, certain state net operating loss and certain foreign tax attributes that the Company has determined that it is more likely than not that they will not be realized. In conjunction with the Company’s ongoing review of its actual results and anticipated future earnings, the Company continuously reassesses the possibility of releasing the valuation allowance currently in place on its deferred tax assets.

As of December 31, 2014, the Company had net operating loss carryforwards of $4.5 million (tax effected) available to reduce future taxable income. Of this amount, approximately $1.4 million relates to the U.S. and expires through 2033; $2.3 million relates to Canada and expires starting in 2015; and $0.8 million relates to the U.K. and can be carried forward indefinitely.

As of December 31, 2014, the Company had tax credits of approximately $4.2 million available to reduce income taxes in future years. Approximately $2.1 million relates to the U.S., both federal and state, and expires through 2034. The remaining $2.1 million relates to Canada, of which $0.8 million expires through 2021 and $1.3 million can be carried forward indefinitely.

Income and foreign withholding taxes have not been recognized on the excess of the amount for financial reporting purposes over the tax basis of investments in foreign subsidiaries that are essentially permanent in nature. This amount becomes taxable upon a repatriation of assets from a subsidiary or a sale or liquidation of a subsidiary. The amount of undistributed earnings of foreign subsidiaries totaled $15.8 million as of December 31, 2014. The estimated unrecognized deferred income tax liabilities on this temporary difference is approximately $1.1 million.

As of December 31, 2012, the amount of gross unrecognized tax benefits totaled approximately $7.6 million, of which $4.3 million would favorably affect the Company’s effective tax rate, if recognized. As a result of settling a U.S. federal tax examination, the Company released $3.0 million of unrecognized tax benefits during the year ended December 31, 2012. As of December 31, 2013, the Company’s total amount of gross unrecognized tax benefits was $7.1 million, of which $4.9 million would favorably affect its effective tax rate, if recognized. As of December 31, 2014, the Company’s total amount of gross unrecognized tax benefits was $6.3 million, of which $4.1 million would favorably affect its effective tax rate, if recognized. Over the next twelve months, the Company may need to record up to $0.7 million of previously unrecognized tax benefits in the event of statute of limitations closures. The Company believes there are no other jurisdictions in which the outcome of unresolved issues or claims is likely to be material to its results of operations, financial position or cash flows. Furthermore, the Company believes it has adequately provided for all income tax uncertainties.

The reconciliation of the total amounts of unrecognized tax benefits is as follows (in thousands):

Balance at December 31, 2011	$	7,284
Additions based on tax positions related to the current year		2,618
Additions for tax positions of prior years		1,422
Reductions for tax positions of prior years		(481	)
Reductions to tax positions resulting from a lapse of the applicable statute of limitations		(254	)
Settlements with taxation authorities		(3,035	)
Balance at December 31, 2012		7,554
Additions based on tax positions related to the current year		508
Additions for tax positions of prior years		1,475
Reductions for tax positions of prior years		(1,888	)
Reductions to tax positions resulting from a lapse of the applicable statute of limitations		(575	)
Balance at December 31, 2013		7,074
Additions based on tax positions related to the current year		1,180
Additions for tax positions of prior years		2,601
Reductions for tax positions of current years		(2,404	)
Reductions to tax positions resulting from a lapse of the applicable statute of limitations		(2,177	)
Balance at December 31, 2014	$	6,274

The Company recognizes interest and penalties related to uncertain tax positions in income tax expense. As of December 31, 2014 and 2013, the Company had approximately $0.6 million and $0.3 million, respectively, of accrued interest and penalties related to uncertain tax positions. During the year ended December 31, 2014 the Company recognized approximately $0.3 million of expense related to an increase in interest and penalties related to uncertain tax positions. During the year ended December 31, 2013, the Company recognized approximately $0.3 million of benefits from lower interest and penalties related to uncertain tax positions.

The Company files income tax returns in Canada, the U.S., and various states and foreign jurisdictions. Generally, the Company is no longer subject to U.S. or foreign income tax examinations by tax authorities for the years before 2006.

The Company’s income tax returns may be reviewed in the following countries for the following periods under the appropriate statute of limitations:

United States	2009 -  Present
Canada	2007 -  Present
United Kingdom	2013 -  Present
China	2011 -  Present
Japan	2009 -  Present
Germany	2008 -  Present
Netherlands	2009 -  Present

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Quarterly Financial Information (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 26, 2014	Jun. 27, 2014	Mar. 28, 2014	Dec. 31, 2013	Sep. 27, 2013	Jun. 28, 2013	Mar. 29, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Financial Information Disclosure [Abstract]
Sales	$ 94,012	$ 94,656	$ 96,905	$ 79,133	$ 82,212	$ 79,858	$ 79,769	$ 75,071	$ 364,706	$ 316,910	$ 243,796
Cost of goods sold	54,284	54,973	58,254	47,028	48,016	45,697	46,530	44,440	214,539	184,683	138,278
Gross profit	39,728	39,683	38,651	32,105	34,196	34,161	33,239	30,631	150,167	132,227	105,518
Operating expenses:
Research and development and engineering	7,837	7,735	7,525	5,857	5,825	6,031	6,115	5,816	28,954	23,787	18,530
Selling, general and administrative	21,840	21,512	21,410	19,618	19,268	19,006	19,374	18,689	84,380	76,337	59,707
Amortization expense – operating expenses	2,799	2,843	2,876	1,744	1,645	1,772	1,617	2,236	10,262	7,270	2,650
Restructuring and acquisition related costs	(14)	771	360	818	663	1,553	743	2,428	1,935	5,387	4,369
Impairment of goodwill and intangible assets	41,442								41,442	0	0
Total operating expenses	73,904	32,861	32,171	28,037	27,401	28,362	27,849	29,169	166,973	112,781	85,256
Operating income (loss) from continuing operations	(34,176)	6,822	6,480	4,068	6,795	5,799	5,390	1,462	(16,806)	19,446	20,262
Interest income (expense), foreign exchange transaction gains (losses) and other income (expense), net	(127)	310	(1,017)	(275)	(850)	(2,022)	(1,087)	690
Income (loss) from continuing operations before income taxes	(34,303)	7,132	5,463	3,793	5,945	3,777	4,303	2,152	(17,915)	16,177	16,702
Income tax provision	(6,013)	2,013	2,057	937	1,246	1,533	3,018	403	(1,006)	6,200	(11,595)
Income (loss) from continuing operations	(28,290)	5,119	3,406	2,856	4,699	2,244	1,285	1,749	(16,909)	9,977	28,297
Consolidated loss from discontinued operations	(790)	(273)	(2,678)	(1,866)	(411)	(185)	(1,827)	369	(7,333)	(2,646)	(8,719)
Gain (loss) on disposal of discontinued operations, net of tax	(1,405)	(321)				(281)	(311)		(1,726)	(592)	2,255
Consolidated net income (loss)	(30,485)	4,525	728	990	4,288	1,778	(853)	2,118	(24,242)	7,331	19,578
Less: income attributable to noncontrolling interest			(3)	(7)	20	12	(18)	(36)	(10)	(22)	(40)
Net income (loss) attributable to GSI Group Inc.	$ (30,485)	$ 4,525	$ 725	$ 983	$ 4,308	$ 1,790	$ (871)	$ 2,082	$ (24,252)	$ 7,309	$ 19,538
Earnings (loss) per common share from continuing operations:
Basic	$ (0.82)	$ 0.15	$ 0.10	$ 0.08	$ 0.14	$ 0.07	$ 0.03	$ 0.05	$ (0.49)	$ 0.29	$ 0.84
Diluted	$ (0.82)	$ 0.15	$ 0.10	$ 0.08	$ 0.14	$ 0.07	$ 0.03	$ 0.05	$ (0.49)	$ 0.29	$ 0.84
Earnings (loss) per common share from discontinued operations:
Basic	$ (0.06)	$ (0.02)	$ (0.08)	$ (0.05)	$ (0.01)	$ (0.02)	$ (0.06)	$ 0.01	$ (0.21)	$ (0.08)	$ (0.26)
Diluted	$ (0.06)	$ (0.02)	$ (0.08)	$ (0.05)	$ (0.01)	$ (0.02)	$ (0.06)	$ 0.01	$ (0.21)	$ (0.08)	$ (0.26)
Earnings (loss) per common share attributable to GSI Group Inc.:
Basic	$ (0.88)	$ 0.13	$ 0.02	$ 0.03	$ 0.13	$ 0.05	$ (0.03)	$ 0.06	$ (0.70)	$ 0.21	$ 0.58
Diluted	$ (0.88)	$ 0.13	$ 0.02	$ 0.03	$ 0.13	$ 0.05	$ (0.03)	$ 0.06	$ (0.70)	$ 0.21	$ 0.58

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Supplementary Information

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Supplementary Information

Supplementary Information

(Unaudited)

The Company’s interim financial statements are prepared on a quarterly basis ending on the Friday closest to the end of the calendar quarter, with the exception of the fourth quarter which always ends on December 31.

In December 2014, the Company determined that an impairment test of the NDS goodwill and intangible assets was required, resulting in an impairment charge of $41.4 million in operating expenses.

On March 14, 2014, the Company acquired JADAK and started to include the operating results of JADAK in the consolidated financial statements as of the acquisition date. In July 2014, the Company completed the sale of certain assets and liabilities of the Scientific Lasers business for $6.5 million in cash, net of working capital adjustments, and recorded a $1.7 million loss on sale.

On January 15, 2013, the Company acquired NDS and started to include the operating results of NDS in the consolidated financial statements as of the acquisition date. In the second quarter of 2013, the Company consummated the sale of certain assets and liabilities of the Semiconductor Systems business for $8.0 million in cash, subject to closing working capital adjustments, and recorded a $0.3 million loss, net of tax. In September 2013, the Company settled final working capital adjustments on the sale of the Laser Systems business and the Semiconductor Systems business and recognized additional loss on disposal of these businesses of $0.3 million, net of tax.

The following tables reflect the Company’s unaudited condensed consolidated statements of operations (in thousands except per share data):

	Three Months Ended
	December 31,			September 26,			June 27,			March 28,
	2014			2014			2014			2014
Sales	$	94,012		$	94,656		$	96,905		$	79,133
Cost of goods sold		54,284			54,973			58,254			47,028
Gross profit		39,728			39,683			38,651			32,105
Operating expenses:
Research and development and engineering		7,837			7,735			7,525			5,857
Selling, general and administrative		21,840			21,512			21,410			19,618
Amortization of purchased intangible assets		2,799			2,843			2,876			1,744
Restructuring and acquisition related costs		(14	)		771			360			818
Impairment of goodwill and intangible assets		41,442			—			—			—
Total operating expenses		73,904			32,861			32,171			28,037
Operating income (loss) from continuing operations		(34,176	)		6,822			6,480			4,068
Interest income (expense), foreign exchange transaction gains (losses) and other income (expense), net		(127	)		310			(1,017	)		(275	)
Income (loss) from continuing operations before income taxes		(34,303	)		7,132			5,463			3,793
Income tax provision		(6,013	)		2,013			2,057			937
Income (loss) from continuing operations		(28,290	)		5,119			3,406			2,856
Loss from discontinued operations, net of tax		(790	)		(273	)		(2,678	)		(1,866	)
Loss on disposal of discontinued operations, net of tax		(1,405	)		(321	)		—			—
Consolidated net income (loss)		(30,485	)		4,525			728			990
Less: Net income attributable to noncontrolling interest		—			—			(3	)		(7	)
Net income (loss) attributable to GSI Group Inc.	$	(30,485	)	$	4,525		$	725		$	983
Earnings (loss) per common share from continuing operations:
Basic	$	(0.82	)	$	0.15		$	0.10		$	0.08
Diluted	$	(0.82	)	$	0.15		$	0.10		$	0.08
Loss per common share from discontinued operations:
Basic	$	(0.06	)	$	(0.02	)	$	(0.08	)	$	(0.05	)
Diluted	$	(0.06	)	$	(0.02	)	$	(0.08	)	$	(0.05	)
Earnings (loss) per common share attributable to GSI Group Inc.
Basic	$	(0.88	)	$	0.13		$	0.02		$	0.03
Diluted	$	(0.88	)	$	0.13		$	0.02		$	0.03

	Three Months Ended
	December 31,			September 27,			June 28,			March 29,
	2013			2013			2013			2013
Sales	$	82,212		$	79,858		$	79,769		$	75,071
Cost of goods sold		48,016			45,697			46,530			44,440
Gross profit		34,196			34,161			33,239			30,631
Operating expenses:
Research and development and engineering		5,825			6,031			6,115			5,816
Selling, general and administrative		19,268			19,006			19,374			18,689
Amortization of purchased intangible assets		1,645			1,772			1,617			2,236
Restructuring and acquisition related costs		663			1,553			743			2,428
Total operating expenses		27,401			28,362			27,849			29,169
Operating income from continuing operations		6,795			5,799			5,390			1,462
Interest income (expense), foreign exchange transaction gains (losses) and other income (expense), net		(850	)		(2,022	)		(1,087	)		690
Income from continuing operations before income taxes		5,945			3,777			4,303			2,152
Income tax provision		1,246			1,533			3,018			403
Income from continuing operations		4,699			2,244			1,285			1,749
Income (loss) from discontinued operations, net of tax		(411	)		(185	)		(1,827	)		369
Loss on disposal of discontinued operations, net of tax		—			(281	)		(311	)		—
Consolidated net income (loss)		4,288			1,778			(853	)		2,118
Less: Net (income) loss attributable to noncontrolling interest		20			12			(18	)		(36	)
Net income (loss) attributable to GSI Group Inc.	$	4,308		$	1,790		$	(871	)	$	2,082
Earnings per common share from continuing operations:
Basic	$	0.14		$	0.07		$	0.03		$	0.05
Diluted	$	0.14		$	0.07		$	0.03		$	0.05
Earnings (loss) per common share from discontinued operations:
Basic	$	(0.01	)	$	(0.02	)	$	(0.06	)	$	0.01
Diluted	$	(0.01	)	$	(0.02	)	$	(0.06	)	$	0.01
Earnings (loss) per common share attributable to GSI Group Inc.
Basic	$	0.13		$	0.05		$	(0.03	)	$	0.06
Diluted	$	0.13		$	0.05		$	(0.03	)	$	0.06

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Significant Components of Deferred Tax Assets and Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Deferred tax assets
Losses & IRC Section 163(j) carryforwards	$ 12,742	$ 16,059
Compensation related deductions	3,749	2,649
Tax credits	3,502	3,817
Restructuring related liabilities	64	406
Inventory	4,495	4,939
Depreciation	683	938
Warranty	876	888
Other	2,206	824
Total deferred tax assets	28,317	30,520
Valuation allowance for deferred tax assets	(14,495)	(11,534)
Net deferred income tax assets	13,822	18,986
Deferred tax liabilities
Equity investment	(1,594)	(1,025)
Depreciation	(341)	(583)
Amortization	(36)	(11,417)
Unrealized currency gain/loss	(2,595)	(983)
Other	(525)	(326)
Total deferred tax liabilities	(5,091)	(14,334)
Net deferred income tax assets (liabilities)	$ 8,731	$ 4,652

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Allowance for Doubtful Accounts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance For Doubtful Accounts Receivable Rollforward
Balance at beginning of year	$ 575	$ 294	$ 224
Provision charged to selling, general and administrative expenses	30	301	278
Allowance resulting from acquisitions	52	117
Write-offs, net of recoveries of amounts previously reserved	(352)	(159)	(222)
Exchange rate changes	(23)	22	14
Balance at end of year	$ 282	$ 575	$ 294

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Future Minimum Lease Payments under Operating and Capital Leases (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Operating Leases
2015	$ 4,888
2016	4,065
2017	3,149
2018	2,821
2019	1,791
Thereafter	5,605
Total minimum lease payments	22,319
Capital Leases
2015	1,261	[1]
2016	1,261	[1]
2017	1,290	[1]
2018	860	[1]
2019	884	[1]
Thereafter	9,045	[1]
Total minimum lease payments	$ 14,601	[1]

[1] Capital lease payments include interest payments of $4.3 million.

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Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2014

Commitments And Contingencies Disclosure [Abstract]

Future Minimum Lease Payments Under Operating and Capital Leases

Future minimum lease payments under operating and capital leases expiring subsequent to December 31, 2014, including operating leases associated with facilities that have been vacated as a result of the Company’s restructuring actions, are as follows (in thousands):

Year Ending December 31,	Operating Leases		Capital Leases(1)
2015	$	4,888	$	1,261
2016		4,065		1,261
2017		3,149		1,290
2018		2,821		860
2019		1,791		884
Thereafter		5,605		9,045
Total minimum lease payments	$	22,319	$	14,601

(1) Capital lease payments include interest payments of $4.3 million.

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Segment Information - Additional Information (Details)	12 Months Ended
	Dec. 31, 2014 Segment
Segment Reporting [Abstract]
Number of reportable segments	3

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013		Dec. 31, 2012
Statement Of Income And Comprehensive Income [Abstract]
Consolidated net income (loss)	$ (24,242)		$ 7,331		$ 19,578
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax	(6,968)	[1]	54	[1]	(1,510)	[1]
Pension liability adjustments, net of tax	(3,146)	[2]	3,353	[2]	(3,215)	[2]
Total other comprehensive income (loss)	(10,114)		3,407		(4,725)
Total consolidated comprehensive income (loss)	(34,356)		10,738		14,853
Less: Comprehensive income attributable to noncontrolling interest	(10)		(22)		(40)
Comprehensive income (loss) attributable to GSI Group Inc.	$ (34,366)		$ 10,716		$ 14,813

[1] The tax effect on this component of comprehensive income was $622, $477 and $1,942 in 2014, 2013 and 2012, respectively.

[2] The tax effect on this component of comprehensive income was ($906), $900 and ($829) in 2014, 2013 and 2012, respectively.

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Reconciliation of Benefit Obligations and Plan Assets of U.K. Plan and Japan Plan (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Change in plan assets:
Employer contributions	$ 2,600	$ 1,700	$ 1,300
UNITED KINGDOM
Change in benefit obligation:
Projected benefit obligation at beginning of year	35,193	34,713
Service cost	0	0
Interest cost	1,589	1,403	1,359
Actuarial (gains) losses	6,060	(889)
Benefits paid	(1,006)	(688)
Plan curtailments	0	0
Foreign currency exchange rate changes	(2,415)	654
Projected benefit obligation at end of year	39,421	35,193	34,713
Accumulated benefit obligation at end of year	39,421	35,193
Change in plan assets:
Fair value of plan assets at beginning of year	33,457	28,629
Actual return on plan assets	2,234	3,903
Employer contributions	1,000	847
Benefits paid	(1,006)	(688)
Foreign currency exchange rate changes	(2,075)	766
Fair value of plan assets at end of year	33,610	33,457	28,629
Funded status at end of year	(5,811)	(1,736)
Amounts included in accumulated other comprehensive loss not yet recognized in net periodic pension cost
Net actuarial (loss) gain	(11,890)	(7,142)
Prior service cost	0	0
Net transition obligation	0	0
Amounts expected to be amortized from accumulated other comprehensive loss into net periodic cost over the next fiscal year consists of:
Net actuarial (loss) gain	892	386
Prior service cost	0	0
Net transition obligation	0	0
JAPAN
Change in benefit obligation:
Projected benefit obligation at beginning of year	1,123	1,613
Service cost	101	99	121
Interest cost	13	10	15
Actuarial (gains) losses	(49)	(58)
Benefits paid	(340)	(928)
Plan curtailments	(252)	0
Foreign currency exchange rate changes	145	387
Projected benefit obligation at end of year	741	1,123	1,613
Accumulated benefit obligation at end of year	741	833
Change in plan assets:
Fair value of plan assets at beginning of year	537	801
Actual return on plan assets	3	4
Employer contributions	253	521
Benefits paid	(340)	(928)
Foreign currency exchange rate changes	(41)	139
Fair value of plan assets at end of year	412	537	801
Funded status at end of year	(329)	(586)
Amounts included in accumulated other comprehensive loss not yet recognized in net periodic pension cost
Net actuarial (loss) gain	0	2
Prior service cost	0	(211)
Net transition obligation	0	(163)
Amounts expected to be amortized from accumulated other comprehensive loss into net periodic cost over the next fiscal year consists of:
Net actuarial (loss) gain	0	0
Prior service cost	0	12
Net transition obligation	$ 0	$ 19

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Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

2. Summary of Significant Accounting Policies

Use of Estimates

The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the dates of the financial statements, and the reported amounts of sales and expenses during the reporting periods. The Company evaluates its estimates based on historical experience, current conditions and various other assumptions that it believes are reasonable under the circumstances. Estimates and assumptions are reviewed on an on-going basis and the effects of revisions are reflected in the period in which they are deemed to be necessary. Actual results could differ significantly from those estimates.

Foreign Currency Translation

The financial statements of the Company and its subsidiaries outside the United States have been translated into United States dollars. Assets and liabilities of foreign operations are translated from foreign currencies into United States dollars at the exchange rates in effect on the balance sheet date. Sales and expenses are translated at the average exchange rate in effect for the period. Accordingly, gains and losses resulting from translating foreign currency financial statements are reported as a separate component of other comprehensive loss in stockholders’ equity. Foreign currency transaction gains and losses, primarily from transactions denominated in currencies other than the functional currency, are included in the accompanying consolidated statements of operations.

Cash and Cash Equivalents

Cash equivalents, primarily money market accounts, are highly liquid investments with original maturities of three months or less. These investments are carried at cost, which approximates fair value.

Long-Term Investments

At December 31, 2014 and 2013, the Company had a 41% equity investment in a privately held company located in the United Kingdom, Laser Quantum Ltd. (“Laser Quantum”). During the second quarter of 2013, the Company’s ownership percentage increased from 25% to 41% as a result of a stock buyback program by Laser Quantum. The Company continues to use the equity method to record the results of this entity as it does not have a controlling interest in the entity. The Company recognized investment income of $2.7 million, $1.5 million and $0.6 million during 2014, 2013 and 2012, respectively, which is included in other income (expense) in the accompanying consolidated statements of operations. The Company’s net investment balance was $8.0 million and $5.7 million at December 31, 2014 and 2013, respectively, and is included in other long-term assets in the accompanying consolidated balance sheets.

The summarized financial information for Laser Quantum is as follows (in thousands):

	Year Ended December 31,
	2014		2013		2012
Sales	$	23,013	$	16,269	$	13,039
Income from operations	$	7,434	$	4,720	$	3,592
Net income	$	6,627	$	3,745	$	2,215

	Year Ended December 31,
	2014		2013
Total assets (1)	$	25,423	$	20,990
Total liabilities	$	2,482	$	4,240

(1) Total assets at December 31, 2014 and 2013 include cash and cash equivalent of $17.1 million and $13.6 million, respectively.

Accounts Receivable and Allowance for Doubtful Accounts

Trade accounts receivable are recorded at the invoiced amount. The Company maintains an allowance for doubtful accounts based on the Company’s best estimate of probable credit losses resulting from the inability of the Company’s customers to make required payments. The Company determines the allowance based on a variety of factors including the age of amounts outstanding relative to their contractual due date, specific customer factors, and other known risks and economic trends. Charges recorded to the allowance for doubtful accounts are reflected as selling, general and administrative expenses and are recorded in the period that the outstanding receivables are determined to be uncollectible. Account balances are charged off against the allowance when the Company believes it is probable that the receivable will not be recovered.

For the years ended December 31, 2014, 2013 and 2012, the allowance for doubtful accounts was as follows (in thousands):

	2014			2013			2012
Balance at beginning of year	$	575		$	294		$	224
Provision charged to selling, general and administrative expenses		30			301			278
Allowance resulting from acquisitions		52			117			—
Write-offs, net of recoveries of amounts previously reserved		(352	)		(159	)		(222	)
Exchange rate changes		(23	)		22			14
Balance at end of year	$	282		$	575		$	294

Inventories

Inventories, which include materials and conversion costs, are stated at the lower of cost or market, using the first-in, first-out method. Market is defined as replacement cost for raw materials and net realizable value for other inventories. Demo inventory is recorded at the lower of cost or its net realizable value. The Company periodically reviews quantities of inventories on hand and compares these amounts to the expected use of each product. The Company records a charge to cost of goods sold for the amount required to reduce the carrying value of inventory to net realizable value. Costs associated with the procurement of inventories such as inbound freight charges, purchasing and receiving costs are capitalized in inventory on the consolidated balance sheets.

Property, Plant and Equipment

Property, plant and equipment are recorded at cost, adjusted for any impairment, less accumulated depreciation. The Company uses the straight-line method to calculate the depreciation of its fixed assets over their estimated useful lives. Estimated useful lives for buildings and building improvements range from 3 to 30 years and 1 to 10 years for machinery and equipment. Leasehold improvements are amortized over the lesser of their useful lives or lease terms, including any renewal period options that are reasonably assured of being exercised. Repairs and maintenance costs are expensed as incurred. Certain costs to develop software for internal use are capitalized when the criteria under Accounting Standards Codification (“ASC”) 350-40, “Internal-Use Software,” are met. Lease arrangements meeting the criteria of ASC 840-30, “Leases – Capital Leases,” are capitalized based on the present value of future lease payments and depreciated over the term of the lease.

Goodwill, Intangibles and Long-Lived Assets

Goodwill represents the excess of the purchase price over the tangible assets, identifiable intangible assets and assumed liabilities acquired. For business combinations, allocations of the purchase price are based upon a valuation of assets and liabilities acquired. Assets acquired and liabilities assumed are recorded at their estimated fair values as of the acquisition date. The fair values of intangible assets are based on valuations using an income approach, with estimates and assumptions provided by management of the acquired companies and the Company. In connection with its acquisition of Excel Technologies, Inc. (“Excel”) in 2008, the Company acquired certain trade names that are classified as intangible assets with indefinite lives. Goodwill and indefinite-lived intangibles are not amortized but are assessed for impairment at least annually to ensure their current fair values exceed their carrying values.

The Company’s most significant intangible assets are patents and acquired technologies, customer relationships, trademarks and trade names. All definite-lived intangible assets are amortized over the periods in which their economic benefits are expected to be realized. The Company reviews the useful life assumptions, including the classification of certain intangible assets as “indefinite-lived”, on a periodic basis to determine if changes in circumstances warrant revisions to them.

The Company’s product lines generally correspond with its reporting units which is the level at which the Company evaluates its goodwill, intangible assets and other long-lived assets for impairment.

Impairment Charges

Impairment analyses of goodwill and indefinite-lived intangible assets are conducted in accordance with ASC 350, “Intangibles—Goodwill and Other”. This guidance specifies that goodwill and other intangible assets must be periodically tested for impairment. The Company tests its goodwill balances annually as of the beginning of the second quarter or more frequently if indicators are present or changes in circumstances suggest that an impairment may exist. The Company utilizes a quantitative analysis to test goodwill for impairment. This two-step approach requires a comparison of the carrying value of each of the Company’s reporting units to the fair value of these reporting units. The fair value of a reporting unit is primarily based on a discounted cash flow (“DCF”) method with a weighted average cost of capital. If the carrying value of a reporting unit exceeds its fair value, the Company calculates the implied fair value of the reporting unit’s goodwill and compares it to the goodwill’s carrying value. If the carrying value of the goodwill exceeds its implied fair value, an impairment charge is recorded for the difference.

The Company assesses indefinite-lived intangible assets for impairment on an annual basis as of the beginning of the second quarter, and more frequently if indicators are present or changes in circumstances suggest that an impairment may exist. The Company will also reassess the continuing classification of these indefinite-lived intangible assets as indefinite-lived when circumstances change such that the useful life may no longer be indefinite. The fair values of the Company’s indefinite-lived intangible assets are determined using the relief from royalty method, based on forecasted revenues. If the fair value of an indefinite-lived intangible asset is less than its carrying value, an impairment charge is recorded for the difference between the carrying value and the fair value of the impaired asset.

The carrying amounts of definite-lived long-lived assets are reviewed for impairment whenever changes in events or circumstances indicate that their carrying values may not be recoverable. The recoverability of carrying value is generally determined by comparison of the asset group’s carrying value to its undiscounted future cash flows. When this test indicates the potential for impairment, a fair value assessment is performed. Once an impairment is determined and measured, an impairment charge is recorded for the difference between the carrying value and the fair value of the impaired asset.

Accumulated Other Comprehensive Income (Loss)

In 2013, the Company adopted Accounting Standards Update (“ASU”) 2013-02, “Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Comprehensive Income”. Under ASU 2013-02, an entity is required to provide information about the amounts reclassified out of accumulated other comprehensive income (loss) by component. In addition, an entity is required to present, either on the face of the financial statements or in the notes, significant amounts reclassified out of accumulated other comprehensive income (loss) by the respective line items of net income, but only if the amount reclassified is required to be reclassified in its entirety in the same reporting period. For amounts that are not required to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures that provide additional details about those amounts. ASU 2013-02 does not change the current requirements for reporting net income or other comprehensive income (loss) in the financial statements.

Revenue Recognition

The Company recognizes revenue when persuasive evidence of an arrangement exists, delivery has occurred, price is fixed or determinable, and collection of the resulting receivable is reasonably assured. Revenue recognition requires judgment and estimates, which may affect the amount and timing of revenue recognized in any given period.

The Company’s revenue transactions are comprised of both single-element and multiple-element transactions. Multiple-element transactions may include two or more products and occasionally also contain installation, training, non-standard/extended warranties, or preventative maintenance plans. For multiple-element transactions, revenue is generally recognized upon shipment, using the relative selling price method per ASC 605-25 “Revenue – Multiple-Element Arrangements”. Single-element transactions are typically recognized upon shipment at their contractually stated price.

Installation and training are generally routine processes that occur within a short period of time following delivery and the Company has concluded that these obligations are inconsequential and perfunctory.

The Company generally provides warranties for its products. The standard warranty period is typically 12 to 24 months for the Laser Products and Precision Motion segments and 12 months to 60 months for the Medical Technologies segment. The standard warranty period for product sales is accounted for under the provisions of ASC 450 “Contingencies”, as the Company has the ability to ascertain the likelihood of the liability, and can estimate the amount of the liability. A provision for the estimated cost related to warranty is recorded to cost of goods sold at the time revenue is recognized. The Company’s estimate of costs to service the warranty obligations are based on historical experience and expectations of future conditions. To the extent the Company experiences warranty claims or costs associated with servicing those claims that differ from the original estimates, revisions to the estimated warranty liability are recorded at that time.

The Company occasionally sells optional extended/non-standard warranty services and preventative maintenance contracts to customers. The Company accounts for these agreements in accordance with provisions of ASC 605-20-25-3, “Separately Priced Extended Warranty and Product Maintenance Contracts,” under which it recognizes the separately priced extended warranty and preventative maintenance fees ratably over the associated period.

The Company, at the request of its customers, may at times perform professional services, generally for the maintenance and repairs of products previously sold to those customers. These services are usually in the form of time and materials based contracts which are short in duration. Revenue for time and material services is recorded at the completion of services requested under a customer’s purchase order.

The Company typically negotiates trade discounts and agreed terms in advance of order acceptance and records any such items as a reduction of revenue. The Company’s revenue recognition policy allows for revenue to be recognized under arrangements where the payment terms are 180 days or less, presuming all other revenue recognition criteria have been met. From time to time, based on the Company’s review of customer creditworthiness and other factors, the Company may provide its customers with payment terms that exceed 180 days. To the extent all other revenue recognition criteria have been met, the Company recognizes revenue for these extended payment arrangements when payment is due. During 2014, no customers were extended credit beyond 180 days.

Research and Development and Engineering Costs

Research and development and engineering (“R&D”) expenses are primarily comprised of employee related expenses and cost of materials for R&D projects. These costs are expensed as incurred.

Share-Based Compensation

The Company records the expense associated with share-based compensation awards to employees and directors based on the fair value of awards as of the grant date. For stock-based compensation awards that vest over time based on employment, such expenses are recognized in the consolidated statements of operations ratably over the vesting period of the award, net of estimated forfeitures. For performance-based restricted stock units, stock-based compensation expenses are recognized ratably over the vesting period when it is probable that the performance targets are expected to be achieved based on management’s projections.

Shipping & Handling Costs

Shipping and handling costs are recorded in cost of goods sold.

Advertising Costs

Advertising costs are expensed to selling, general and administrative expense as incurred and were not material for 2014, 2013 and 2012.

Restructuring and Acquisition Related Costs

The Company accounted for its restructuring activities in accordance with the provisions of ASC 420, “Exit or Disposal Cost Obligations”. The Company makes assumptions related to the amounts of employee severance benefits and related costs, the time period over which facilities will remain vacant, useful lives and residual value of long-lived assets, sublease terms, sublease rates and discount rates. Estimates and assumptions are based on the best information available at the time the obligation is recognized. These estimates are reviewed and revised as facts and circumstances dictate.

Acquisition related costs incurred to effect a business combination, including finder’s fees, legal, valuation and other professional or consulting fees, are expensed as incurred. Acquisition related costs also include expenses recognized under earn-out agreements in connection with the JADAK acquisition.

Accounting for Income Taxes

The asset and liability method is used to account for income taxes. Under the asset and liability method, deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to temporary differences between the financial statement carrying amounts of assets and liabilities and their respective tax bases. This method also requires the recognition of future tax benefits, such as net operating loss carryforwards, to the extent that it is more likely than not that such benefits will be realized. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which the temporary differences are expected to be recovered or settled. A valuation allowance is established to reduce the deferred tax assets if it is more likely than not that some or all of the related tax benefits will not be realized in the future and is assessed periodically to determine whether it is more likely than not that the tax benefits will be realized in the future and that such valuation should be released.

The majority of the Company’s business activities are conducted through its subsidiaries outside of Canada. Earnings from these subsidiaries are generally indefinitely reinvested in the local businesses. Further, local laws and regulations may also restrict certain subsidiaries from paying dividends to their parents. As such, the Company generally does not accrue income taxes for the repatriation of such earnings in accordance with ASC 740, “Income Taxes”. To the extent that there are excess accumulated earnings that the Company intends to repatriate from any such subsidiaries, the Company recognizes deferred tax liabilities on such foreign earnings.

The Company assesses its income tax positions and records tax benefits for all years subject to examination based on the evaluation of the facts, circumstances, and information available at each reporting date. For those tax positions with a greater than 50 percent likelihood of being realized upon ultimate settlement with a taxing authority that has full knowledge of all relevant information, the Company records a tax benefit. For those income tax positions that are not likely to be sustained, no tax benefit is recognized in the consolidated financial statements. The Company recognizes interest and penalties related to uncertain tax positions as part of the provision for income taxes.

Recent Accounting Pronouncements

Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity

In April 2014, the Financial Accounting Standards Board (“FASB”) issued ASU 2014-08, “Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” ASU 2014-08 provides guidance on determining when disposals can be presented as discontinued operations. ASU 2014-08 requires that only disposals representing a strategic shift that has (or will have) a major effect on an entity’s operations and financial results should be presented as discontinued operations. A strategic shift may include a disposal of a major line of business, a major equity method investment or a major part of an entity. Additionally, ASU 2014-08 requires expanded disclosures regarding discontinued operations. ASU 2014-08 will be effective prospectively for reporting periods beginning after December 15, 2014, with early adoption permitted. The Company will adopt this pronouncement in January 2015. The adoption of this amendment is not expected to have a material impact on the Company’s consolidated financial statements.

Revenue from Contracts with Customers

In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers”, which provides guidance for revenue recognition. ASU 2014-09 supersedes the revenue recognition requirements in ASC 605, “Revenue Recognition,” and requires entities to recognize revenue in a way that depicts the transfer of goods or services to customers at an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 will be effective for annual and interim reporting periods beginning after December 15, 2016. Early adoption is not permitted. Upon adoption, an entity may apply the new guidance either retrospectively to each prior reporting period presented or retrospectively only to customer contracts not yet completed as of the date of adoption with the cumulative effect of initially applying the standard recognized in beginning retained earnings at the date of the initial application. The Company is currently evaluating the impact of the new standard on the Company’s consolidated financial statements.

Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern

In August 2014, the FASB issued ASU 2014-15, "Presentation of Financial Statements - Going Concern (Subtopic 205-40)," which requires management to assess a company’s ability to continue as a going concern and to provide related footnote disclosures in certain circumstances. ASU 2014-15 will be effective for annual reporting periods ending after December 15, 2016. Early application is permitted. The Company does not expect the adoption of ASU 2014-15 to have an impact on the Company’s consolidated financial statements.

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Goodwill, Intangible Assets and Impairment Charges - Additional Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2014 Tradeshow	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Jun. 30, 2014
Goodwill And Intangible Assets [Line Items]
Number of main tradeshows for the NDS Business	2
Impairment Charge, Intangible assets		$ 21,867
Impairment Charge, Goodwill		19,575
Impairment of goodwill and intangible assets	41,442	41,442	0	0
Medical Technologies
Goodwill And Intangible Assets [Line Items]
Impairment Charge, Intangible assets	21,800
Impairment Charge, Goodwill	$ 19,600
Minimum
Goodwill And Intangible Assets [Line Items]
Reporting units in excess of carrying value					10.00%

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Restricted Stock Units Issued and Outstanding (Parenthetical) (Details) (USD $)	Dec. 31, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Common stock fair value per share	$ 14.72
Restricted stock units purchase price per share	$ 0

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Future Minimum Lease Payments under Operating and Capital Leases (Parenthetical) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014
Commitments And Contingencies Disclosure [Abstract]
Capital lease payments interest included in payment	$ 4.3

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Inventories (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Inventory Disclosure [Abstract]
Raw materials	$ 38,934	$ 34,749
Work-in-process	9,899	9,744
Finished goods	11,945	10,682
Demo and consigned inventory	2,165	3,115
Total inventories	$ 62,943	$ 58,290

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Organization and Presentation (Policies)

12 Months Ended

Dec. 31, 2014

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

These consolidated financial statements have been prepared by the Company in U.S. dollars and in accordance with U.S. generally accepted accounting principles, applied on a consistent basis.

Basis of Consolidation

Basis of Consolidation

The consolidated financial statements include the accounts of GSI Group Inc. and its wholly owned subsidiaries. Intercompany accounts and transactions have been eliminated. The Company’s 50% owned joint venture, Excel Laser Technology Private Limited (the “India JV”), has been consolidated since it is a variable interest entity and the Company is considered the primary beneficiary of the joint venture. The India JV is reported as discontinued operations in the Company’s consolidated financial statements because it was part of the Scientific Lasers business that the Company divested in July 2014. The Company records noncontrolling interest in its consolidated statements of operations for the ownership interest of the minority owners of the India JV. Financial information related to the joint venture is not considered material to the consolidated financial statements. The Company is currently in negotiations with the joint venture partner to dissolve the joint venture.

The Company accounts for investments in businesses in which it owns between 20% and 50% using the equity method.

Reclassifications

Reclassifications

In the first quarter of 2014, the Company’s Board of Directors committed to a plan to sell the Scientific Lasers business which sold products and services under the Continuum brand name within the Laser Products segment. The Company determined that the asset held-for-sale criteria were satisfied and began to report the Scientific Lasers business as discontinued operations in the first quarter of 2014. As a result, prior period information related to the business has been reclassified into discontinued operations to conform to current period presentation. The discontinued business has been excluded from the following Notes to Consolidated Financial Statements unless otherwise stated. See Note 4 to Consolidated Financial Statements for further information on discontinued operations.

Bankruptcy

Bankruptcy

In 2008, the Company did not file its quarterly report on Form 10-Q for the quarter ended September 26, 2008 within the time period required by the rules and regulations of the Securities and Exchange Commission (“SEC”) as a result of errors discovered by the Company in its application of revenue recognition standards concerning multiple-element revenue arrangements. The delay in the quarterly report on Form 10-Q caused a noncompliance with a covenant in the indenture governing the $210.0 million of 11% unsecured senior notes due 2013 (the “2008 Senior Notes”). On June 30, 2009, the Company reached an agreement with certain beneficial owners holding greater than 75% of the outstanding aggregate principal amount of the 2008 Senior Notes on a non-binding term sheet to consensually restructure the outstanding obligations under the 2008 Senior Notes. Between December 2008 and March 2009, the Company announced that it had discovered material errors related to its revenue recognition affecting 2004 through 2008 and that the annual reports for 2006, 2007 and 2008 and quarterly reports through the second quarter of 2008 should not be relied upon. In November 2009, the NASDAQ announced that the Company’s common stock was delisted and ceased trading on the NASDAQ Global Select Market as a result of the continued delays in the Company’s periodic filings with the SEC.

On November 20, 2009 (the “Petition Date”), GSI Group Inc. and two of its United States subsidiaries filed voluntary petitions for relief under Chapter 11 of the Bankruptcy Code in the United States Bankruptcy Court for the District of Delaware (the “Bankruptcy Court”) (the “Chapter 11 Cases”). Following the Petition Date, the Company continued to operate its business as “debtors-in-possession” in accordance with the applicable provisions of the Bankruptcy Code and orders of the Bankruptcy Court. In late December 2009, the United States trustee overseeing the Chapter 11 Cases appointed an Official Committee of Equity Security Holders (the “Equity Committee”) to represent the interests of the Company’s equity holders. In May 2010, the Company filed the final Chapter 11 reorganization plan (the “Final Chapter 11 Plan”) with the Bankruptcy Court.

On July 23, 2010 (the “Effective Date”), the Company successfully emerged from bankruptcy as a reorganized company pursuant to the Final Chapter 11 Plan. The Final Chapter 11 Plan deleveraged the Company’s balance sheet by reducing debt and increasing stockholders’ equity. The financial restructuring was accomplished through a debt-for-equity exchange and by using the proceeds from a shareholder rights offering and cash on hand to reduce outstanding indebtedness.

The Chapter 11 Cases were closed on September 2, 2011, and the Company no longer has any legal or material financial constraint relating to those cases.

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the dates of the financial statements, and the reported amounts of sales and expenses during the reporting periods. The Company evaluates its estimates based on historical experience, current conditions and various other assumptions that it believes are reasonable under the circumstances. Estimates and assumptions are reviewed on an on-going basis and the effects of revisions are reflected in the period in which they are deemed to be necessary. Actual results could differ significantly from those estimates.

Foreign Currency Translation

Foreign Currency Translation

The financial statements of the Company and its subsidiaries outside the United States have been translated into United States dollars. Assets and liabilities of foreign operations are translated from foreign currencies into United States dollars at the exchange rates in effect on the balance sheet date. Sales and expenses are translated at the average exchange rate in effect for the period. Accordingly, gains and losses resulting from translating foreign currency financial statements are reported as a separate component of other comprehensive loss in stockholders’ equity. Foreign currency transaction gains and losses, primarily from transactions denominated in currencies other than the functional currency, are included in the accompanying consolidated statements of operations.

Cash and Cash Equivalents

Cash and Cash Equivalents

Cash equivalents, primarily money market accounts, are highly liquid investments with original maturities of three months or less. These investments are carried at cost, which approximates fair value.

Long-Term Investments

Long-Term Investments

At December 31, 2014 and 2013, the Company had a 41% equity investment in a privately held company located in the United Kingdom, Laser Quantum Ltd. (“Laser Quantum”). During the second quarter of 2013, the Company’s ownership percentage increased from 25% to 41% as a result of a stock buyback program by Laser Quantum. The Company continues to use the equity method to record the results of this entity as it does not have a controlling interest in the entity. The Company recognized investment income of $2.7 million, $1.5 million and $0.6 million during 2014, 2013 and 2012, respectively, which is included in other income (expense) in the accompanying consolidated statements of operations. The Company’s net investment balance was $8.0 million and $5.7 million at December 31, 2014 and 2013, respectively, and is included in other long-term assets in the accompanying consolidated balance sheets.

The summarized financial information for Laser Quantum is as follows (in thousands):

	Year Ended December 31,
	2014		2013		2012
Sales	$	23,013	$	16,269	$	13,039
Income from operations	$	7,434	$	4,720	$	3,592
Net income	$	6,627	$	3,745	$	2,215

	Year Ended December 31,
	2014		2013
Total assets (1)	$	25,423	$	20,990
Total liabilities	$	2,482	$	4,240

· Total assets at December 31, 2014 and 2013 include cash and cash equivalent of $17.1 million and $13.6 million, respectively.

Accounts Receivable and Allowance for Doubtful Accounts

Accounts Receivable and Allowance for Doubtful Accounts

Trade accounts receivable are recorded at the invoiced amount. The Company maintains an allowance for doubtful accounts based on the Company’s best estimate of probable credit losses resulting from the inability of the Company’s customers to make required payments. The Company determines the allowance based on a variety of factors including the age of amounts outstanding relative to their contractual due date, specific customer factors, and other known risks and economic trends. Charges recorded to the allowance for doubtful accounts are reflected as selling, general and administrative expenses and are recorded in the period that the outstanding receivables are determined to be uncollectible. Account balances are charged off against the allowance when the Company believes it is probable that the receivable will not be recovered.

For the years ended December 31, 2014, 2013 and 2012, the allowance for doubtful accounts was as follows (in thousands):

	2014			2013			2012
Balance at beginning of year	$	575		$	294		$	224
Provision charged to selling, general and administrative expenses		30			301			278
Allowance resulting from acquisitions		52			117			—
Write-offs, net of recoveries of amounts previously reserved		(352	)		(159	)		(222	)
Exchange rate changes		(23	)		22			14
Balance at end of year	$	282		$	575		$	294

Inventories

Inventories

Inventories, which include materials and conversion costs, are stated at the lower of cost or market, using the first-in, first-out method. Market is defined as replacement cost for raw materials and net realizable value for other inventories. Demo inventory is recorded at the lower of cost or its net realizable value. The Company periodically reviews quantities of inventories on hand and compares these amounts to the expected use of each product. The Company records a charge to cost of goods sold for the amount required to reduce the carrying value of inventory to net realizable value. Costs associated with the procurement of inventories such as inbound freight charges, purchasing and receiving costs are capitalized in inventory on the consolidated balance sheets.

Property, Plant and Equipment

Property, Plant and Equipment

Property, plant and equipment are recorded at cost, adjusted for any impairment, less accumulated depreciation. The Company uses the straight-line method to calculate the depreciation of its fixed assets over their estimated useful lives. Estimated useful lives for buildings and building improvements range from 3 to 30 years and 1 to 10 years for machinery and equipment. Leasehold improvements are amortized over the lesser of their useful lives or lease terms, including any renewal period options that are reasonably assured of being exercised. Repairs and maintenance costs are expensed as incurred. Certain costs to develop software for internal use are capitalized when the criteria under Accounting Standards Codification (“ASC”) 350-40, “Internal-Use Software,” are met. Lease arrangements meeting the criteria of ASC 840-30, “Leases – Capital Leases,” are capitalized based on the present value of future lease payments and depreciated over the term of the lease.

Goodwill, Intangibles and Long-Lived Assets

Goodwill, Intangibles and Long-Lived Assets

Goodwill represents the excess of the purchase price over the tangible assets, identifiable intangible assets and assumed liabilities acquired. For business combinations, allocations of the purchase price are based upon a valuation of assets and liabilities acquired. Assets acquired and liabilities assumed are recorded at their estimated fair values as of the acquisition date. The fair values of intangible assets are based on valuations using an income approach, with estimates and assumptions provided by management of the acquired companies and the Company. In connection with its acquisition of Excel Technologies, Inc. (“Excel”) in 2008, the Company acquired certain trade names that are classified as intangible assets with indefinite lives. Goodwill and indefinite-lived intangibles are not amortized but are assessed for impairment at least annually to ensure their current fair values exceed their carrying values.

The Company’s most significant intangible assets are patents and acquired technologies, customer relationships, trademarks and trade names. All definite-lived intangible assets are amortized over the periods in which their economic benefits are expected to be realized. The Company reviews the useful life assumptions, including the classification of certain intangible assets as “indefinite-lived”, on a periodic basis to determine if changes in circumstances warrant revisions to them.

The Company’s product lines generally correspond with its reporting units which is the level at which the Company evaluates its goodwill, intangible assets and other long-lived assets for impairment.

Impairment Charges

Impairment Charges

Impairment analyses of goodwill and indefinite-lived intangible assets are conducted in accordance with ASC 350, “Intangibles—Goodwill and Other”. This guidance specifies that goodwill and other intangible assets must be periodically tested for impairment. The Company tests its goodwill balances annually as of the beginning of the second quarter or more frequently if indicators are present or changes in circumstances suggest that an impairment may exist. The Company utilizes a quantitative analysis to test goodwill for impairment. This two-step approach requires a comparison of the carrying value of each of the Company’s reporting units to the fair value of these reporting units. The fair value of a reporting unit is primarily based on a discounted cash flow (“DCF”) method with a weighted average cost of capital. If the carrying value of a reporting unit exceeds its fair value, the Company calculates the implied fair value of the reporting unit’s goodwill and compares it to the goodwill’s carrying value. If the carrying value of the goodwill exceeds its implied fair value, an impairment charge is recorded for the difference.

The Company assesses indefinite-lived intangible assets for impairment on an annual basis as of the beginning of the second quarter, and more frequently if indicators are present or changes in circumstances suggest that an impairment may exist. The Company will also reassess the continuing classification of these indefinite-lived intangible assets as indefinite-lived when circumstances change such that the useful life may no longer be indefinite. The fair values of the Company’s indefinite-lived intangible assets are determined using the relief from royalty method, based on forecasted revenues. If the fair value of an indefinite-lived intangible asset is less than its carrying value, an impairment charge is recorded for the difference between the carrying value and the fair value of the impaired asset.

The carrying amounts of definite-lived long-lived assets are reviewed for impairment whenever changes in events or circumstances indicate that their carrying values may not be recoverable. The recoverability of carrying value is generally determined by comparison of the asset group’s carrying value to its undiscounted future cash flows. When this test indicates the potential for impairment, a fair value assessment is performed. Once an impairment is determined and measured, an impairment charge is recorded for the difference between the carrying value and the fair value of the impaired asset.

Accumulated Other Comprehensive Income (Loss)

Accumulated Other Comprehensive Income (Loss)

In 2013, the Company adopted Accounting Standards Update (“ASU”) 2013-02, “Comprehensive Income (Topic 220): Reporting of Amounts Reclassified Out of Accumulated Comprehensive Income”. Under ASU 2013-02, an entity is required to provide information about the amounts reclassified out of accumulated other comprehensive income (loss) by component. In addition, an entity is required to present, either on the face of the financial statements or in the notes, significant amounts reclassified out of accumulated other comprehensive income (loss) by the respective line items of net income, but only if the amount reclassified is required to be reclassified in its entirety in the same reporting period. For amounts that are not required to be reclassified in their entirety to net income, an entity is required to cross-reference to other disclosures that provide additional details about those amounts. ASU 2013-02 does not change the current requirements for reporting net income or other comprehensive income (loss) in the financial statements.

Revenue Recognition

Revenue Recognition

The Company recognizes revenue when persuasive evidence of an arrangement exists, delivery has occurred, price is fixed or determinable, and collection of the resulting receivable is reasonably assured. Revenue recognition requires judgment and estimates, which may affect the amount and timing of revenue recognized in any given period.

The Company’s revenue transactions are comprised of both single-element and multiple-element transactions. Multiple-element transactions may include two or more products and occasionally also contain installation, training, non-standard/extended warranties, or preventative maintenance plans. For multiple-element transactions, revenue is generally recognized upon shipment, using the relative selling price method per ASC 605-25 “Revenue – Multiple-Element Arrangements”. Single-element transactions are typically recognized upon shipment at their contractually stated price.

Installation and training are generally routine processes that occur within a short period of time following delivery and the Company has concluded that these obligations are inconsequential and perfunctory.

The Company generally provides warranties for its products. The standard warranty period is typically 12 to 24 months for the Laser Products and Precision Motion segments and 12 months to 60 months for the Medical Technologies segment. The standard warranty period for product sales is accounted for under the provisions of ASC 450 “Contingencies”, as the Company has the ability to ascertain the likelihood of the liability, and can estimate the amount of the liability. A provision for the estimated cost related to warranty is recorded to cost of goods sold at the time revenue is recognized. The Company’s estimate of costs to service the warranty obligations are based on historical experience and expectations of future conditions. To the extent the Company experiences warranty claims or costs associated with servicing those claims that differ from the original estimates, revisions to the estimated warranty liability are recorded at that time.

The Company occasionally sells optional extended/non-standard warranty services and preventative maintenance contracts to customers. The Company accounts for these agreements in accordance with provisions of ASC 605-20-25-3, “Separately Priced Extended Warranty and Product Maintenance Contracts,” under which it recognizes the separately priced extended warranty and preventative maintenance fees ratably over the associated period.

The Company, at the request of its customers, may at times perform professional services, generally for the maintenance and repairs of products previously sold to those customers. These services are usually in the form of time and materials based contracts which are short in duration. Revenue for time and material services is recorded at the completion of services requested under a customer’s purchase order.

The Company typically negotiates trade discounts and agreed terms in advance of order acceptance and records any such items as a reduction of revenue. The Company’s revenue recognition policy allows for revenue to be recognized under arrangements where the payment terms are 180 days or less, presuming all other revenue recognition criteria have been met. From time to time, based on the Company’s review of customer creditworthiness and other factors, the Company may provide its customers with payment terms that exceed 180 days. To the extent all other revenue recognition criteria have been met, the Company recognizes revenue for these extended payment arrangements when payment is due. During 2014, no customers were extended credit beyond 180 days.

Research and Development and Engineering Costs

Research and Development and Engineering Costs

Research and development and engineering (“R&D”) expenses are primarily comprised of employee related expenses and cost of materials for R&D projects. These costs are expensed as incurred.

Share-Based Compensation

Share-Based Compensation

The Company records the expense associated with share-based compensation awards to employees and directors based on the fair value of awards as of the grant date. For stock-based compensation awards that vest over time based on employment, such expenses are recognized in the consolidated statements of operations ratably over the vesting period of the award, net of estimated forfeitures. For performance-based restricted stock units, stock-based compensation expenses are recognized ratably over the vesting period when it is probable that the performance targets are expected to be achieved based on management’s projections.

Shipping & Handling Costs

Shipping & Handling Costs

Shipping and handling costs are recorded in cost of goods sold.

Advertising Costs

Advertising Costs

Advertising costs are expensed to selling, general and administrative expense as incurred and were not material for 2014, 2013 and 2012.

Restructuring, Restatement Related Costs, Post-Emergence Fees and Other Charges

Restructuring and Acquisition Related Costs

The Company accounted for its restructuring activities in accordance with the provisions of ASC 420, “Exit or Disposal Cost Obligations”. The Company makes assumptions related to the amounts of employee severance benefits and related costs, the time period over which facilities will remain vacant, useful lives and residual value of long-lived assets, sublease terms, sublease rates and discount rates. Estimates and assumptions are based on the best information available at the time the obligation is recognized. These estimates are reviewed and revised as facts and circumstances dictate.

Acquisition related costs incurred to effect a business combination, including finder’s fees, legal, valuation and other professional or consulting fees, are expensed as incurred. Acquisition related costs also include expenses recognized under earn-out agreements in connection with the JADAK acquisition.

Accounting for Income Taxes

Accounting for Income Taxes

The asset and liability method is used to account for income taxes. Under the asset and liability method, deferred tax assets and liabilities are recognized for the estimated future tax consequences attributable to temporary differences between the financial statement carrying amounts of assets and liabilities and their respective tax bases. This method also requires the recognition of future tax benefits, such as net operating loss carryforwards, to the extent that it is more likely than not that such benefits will be realized. Deferred tax assets and liabilities are measured using enacted tax rates in effect for the year in which the temporary differences are expected to be recovered or settled. A valuation allowance is established to reduce the deferred tax assets if it is more likely than not that some or all of the related tax benefits will not be realized in the future and is assessed periodically to determine whether it is more likely than not that the tax benefits will be realized in the future and that such valuation should be released.

The majority of the Company’s business activities are conducted through its subsidiaries outside of Canada. Earnings from these subsidiaries are generally indefinitely reinvested in the local businesses. Further, local laws and regulations may also restrict certain subsidiaries from paying dividends to their parents. As such, the Company generally does not accrue income taxes for the repatriation of such earnings in accordance with ASC 740, “Income Taxes”. To the extent that there are excess accumulated earnings that the Company intends to repatriate from any such subsidiaries, the Company recognizes deferred tax liabilities on such foreign earnings.

The Company assesses its income tax positions and records tax benefits for all years subject to examination based on the evaluation of the facts, circumstances, and information available at each reporting date. For those tax positions with a greater than 50 percent likelihood of being realized upon ultimate settlement with a taxing authority that has full knowledge of all relevant information, the Company records a tax benefit. For those income tax positions that are not likely to be sustained, no tax benefit is recognized in the consolidated financial statements. The Company recognizes interest and penalties related to uncertain tax positions as part of the provision for income taxes.

Recent Accounting Pronouncements

Recent Accounting Pronouncements

Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity

In April 2014, the Financial Accounting Standards Board (“FASB”) issued ASU 2014-08, “Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity.” ASU 2014-08 provides guidance on determining when disposals can be presented as discontinued operations. ASU 2014-08 requires that only disposals representing a strategic shift that has (or will have) a major effect on an entity’s operations and financial results should be presented as discontinued operations. A strategic shift may include a disposal of a major line of business, a major equity method investment or a major part of an entity. Additionally, ASU 2014-08 requires expanded disclosures regarding discontinued operations. ASU 2014-08 will be effective prospectively for reporting periods beginning after December 15, 2014, with early adoption permitted. The Company will adopt this pronouncement in January 2015. The adoption of this amendment is not expected to have a material impact on the Company’s consolidated financial statements.

Revenue from Contracts with Customers

In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers”, which provides guidance for revenue recognition. ASU 2014-09 supersedes the revenue recognition requirements in ASC 605, “Revenue Recognition,” and requires entities to recognize revenue in a way that depicts the transfer of goods or services to customers at an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. ASU 2014-09 will be effective for annual and interim reporting periods beginning after December 15, 2016. Early adoption is not permitted. Upon adoption, an entity may apply the new guidance either retrospectively to each prior reporting period presented or retrospectively only to customer contracts not yet completed as of the date of adoption with the cumulative effect of initially applying the standard recognized in beginning retained earnings at the date of the initial application. The Company is currently evaluating the impact of the new standard on the Company’s consolidated financial statements.

Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern

In August 2014, the FASB issued ASU 2014-15, "Presentation of Financial Statements - Going Concern (Subtopic 205-40)," which requires management to assess a company’s ability to continue as a going concern and to provide related footnote disclosures in certain circumstances. ASU 2014-15 will be effective for annual reporting periods ending after December 15, 2016. Early application is permitted. The Company does not expect the adoption of ASU 2014-15 to have an impact on the Company’s consolidated financial statements.

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Accrued Expenses and Other Current Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Other Liabilities Disclosure [Abstract]
Accrued compensation and benefits	$ 7,741	$ 8,624
Accrued warranty	3,044	3,315	2,204
Other	8,616	10,349
Total	$ 19,401	$ 22,288

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Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2014

Net Periodic Cost for U.K Defined Benefit Pension Plan

The net periodic pension cost for the U.K. Plan and the Japan Plan included the following components (in thousands):

	U.K. Plan									Japan Plan
	2014			2013			2012			2014			2013			2012
Components of the net periodic pension cost:
Service cost	$	—		$	—		$	—		$	101		$	99		$	121
Interest cost		1,589			1,403			1,359			13			10			15
Expected return on plan assets		(1,958	)		(1,595	)		(1,270	)		(6	)		(7	)		—
Amortization of the unrecognized transition    obligation		—			—			—			29			14			37
Amortization of prior service cost		—			—			—			18			12			3
Amortization of actuarial losses		374			668			392			—			—			—
Other		—			—			—			18			—			—
Net periodic pension cost	$	5		$	476		$	481		$	173		$	128		$	176

Reconciliation of Benefit Obligations and Plan Assets of U.K. Plan and Japan Plan

The following table provides a reconciliation of benefit obligations and plan assets of the U.K. Plan and the Japan Plan (in thousands):

	U.K. Plan						Japan Plan
	2014			2013			2014			2013
Change in benefit obligation:
Projected benefit obligation at beginning of year	$	35,193		$	34,713		$	1,123		$	1,613
Service cost		—			—			101			99
Interest cost		1,589			1,403			13			10
Actuarial (gains) losses		6,060			(889	)		(49	)		(58	)
Benefits paid		(1,006	)		(688	)		(340	)		(928	)
Plan curtailments		—			—			(252	)		—
Foreign currency exchange rate changes		(2,415	)		654			145			387
Projected benefit obligation at end of year	$	39,421		$	35,193		$	741		$	1,123
Accumulated benefit obligation at end of year	$	39,421		$	35,193		$	741		$	833
Change in plan assets:
Fair value of plan assets at beginning of year	$	33,457		$	28,629		$	537		$	801
Actual return on plan assets		2,234			3,903			3			4
Employer contributions		1,000			847			253			521
Benefits paid		(1,006	)		(688	)		(340	)		(928	)
Foreign currency exchange rate changes		(2,075	)		766			(41	)		139
Fair value of plan assets at end of year	$	33,610		$	33,457		$	412		$	537
Funded status at end of year	$	(5,811	)	$	(1,736	)	$	(329	)	$	(586	)
Amounts included in accumulated other comprehensive loss not yet recognized in net periodic pension cost
Net actuarial (loss) gain	$	(11,890	)	$	(7,142	)	$	—		$	2
Prior service cost	$	—		$	—		$	—		$	(211	)
Net transition obligation	$	—		$	—		$	—		$	(163	)
Amounts expected to be amortized from accumulated other comprehensive loss into net periodic cost over the next fiscal year consists of:
Net actuarial (loss) gain	$	892		$	386		$	—		$	—
Prior service cost	$	—		$	—		$	—		$	12
Net transition obligation	$	—		$	—		$	—		$	19

Expected Future Benefit Payments

The following table reflects the total expected benefit payments to plan participants and have been estimated based on the same assumptions used to measure the Company’s benefit obligations as of December 31, 2014 (in thousands):

	U.K. Plan		Japan Plan
2015	$	827	$	514
2016		974		76
2017		1,092		76
2018		900		75
2019		1,290		-
2020-2024		8,097		-
Total	$	13,180	$	741

Summary of Fair Value of Plan Assets by Asset Category

The following table summarizes the fair values of Plan assets as of December 31, 2014 by asset category (in thousands):

	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Asset Category
U.K. Plan
Mutual Funds:
Balanced (1)	$	16,287	$	—	$	16,287	$	—
Growth (2)		17,149		—		17,149		—
Cash		174		174		—		—
Total	$	33,610	$	174	$	33,436	$	—
Japan Plan
Insurance contracts (3)	$	412	$	—	$	412	$	—
Total	$	412	$	—	$	412	$	—

(1) This class comprises a diversified portfolio of global investments which seeks a balanced return between capital growth and fixed income and is allocated on a weighted average basis as follows: equities (54%), bonds (32%), other assets (5%) and cash (9%).

(2) This class comprises a diversified portfolio of global investments which seeks long-term capital growth and is allocated on a weighted average basis as follows: equities (67%), bonds (15%), other assets (8%) and cash (10%).

(3) This class represents funds invested in insurance contracts.

The following table summarizes the fair values of Plan assets as of December 31, 2013 by asset category (in thousands):

	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Asset Category
U.K. Plan
Mutual Funds:
Balanced (1)	$	16,260	$	—	$	16,260	$	—
Growth (2)		17,060		—		17,060		—
Cash		137		137		—		—
Total	$	33,457	$	137	$	33,320	$	—
Japan Plan
Insurance contracts (3)	$	537	$	—	$	537	$	—
Total	$	537	$	—	$	537	$	—

(1) This class comprises a diversified portfolio of global investments which seeks a balanced return between capital growth and fixed income and is allocated on a weighted average basis as follows: equities (51%), bonds (33%), other assets (8%) and cash (8%).

(2) This class comprises a diversified portfolio of global investments which seeks long-term capital growth and is allocated on a weighted average basis as follows: equities (70%), other assets (14%), bonds (9%), and cash (7%).

(3) This class represents funds invested in insurance contracts.

Pension Cost

Actuarial Assumptions used to Compute net Periodic Pension Cost and Funded Status for U.K. Plan and Japan Plan

The actuarial assumptions used to compute the net periodic pension cost for the years ended December 31, 2014, 2013 and 2012, respectively, for the U.K. Plan and the Japan Plan were as follows:

	U.K. Plan									Japan Plan
	2014			2013			2012			2014			2013			2012
Weighted-average discount rate		4.6	%		4.3	%		4.9	%		1.0	%		1.3	%		1.2	%
Weighted-average rate of compensation increase		—			—			—			3.0	%		3.0	%		3.0	%
Weighted-average long-term rate of return on plan assets		5.9	%		5.7	%		5.0	%		1.0	%		1.0	%		—

Funded Status

Actuarial Assumptions used to Compute net Periodic Pension Cost and Funded Status for U.K. Plan and Japan Plan

The actuarial assumptions used to compute the funded status as of December 31, 2014 and 2013, respectively, for the U.K. Plan and the Japan Plan were as follows:

	U.K. Plan						Japan Plan
	2014			2013			2014		2013
Weighted-average discount rate		3.5	%		4.6	%		—		1.0	%
Weighted-average rate of compensation increase		—			—			—		3.0	%
Rate of inflation		3.6	%		2.7	%		—		—

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Employee Benefit Plans

12 Months Ended

Dec. 31, 2014

Compensation And Retirement Disclosure [Abstract]

Employee Benefit Plans

12. Employee Benefit Plans

Defined Benefit Plans

The Company maintains a defined benefit pension plan in the United Kingdom (the “U.K. Plan”). In 1997, membership to the U.K. Plan was closed. In 2003, the Company was allowed to stop accruing additional benefits to the participants. Benefits under the U.K. Plan were based on the employees’ years of service and compensation as of 2003.

The Company also maintains a tax qualified pension plan in Japan (the “Japan Plan”) that covers certain of the Company’s Japanese employees. Benefits are based on years of service and compensation at retirement. Employees with less than twenty years of service to the Company receive a lump sum benefit payout. Employees with twenty or more years of service to the Company receive a benefit that is guaranteed for a certain number of years. Participants may, under certain circumstances, receive a benefit upon termination of employment. In December 2014, the Company amended the Japan Plan, which will be terminated in the first quarter of 2015. Upon termination, the plan assets will be transferred to each employee’s deferred contribution plan account. The accrued retirement allowance amount calculated by Japanese retirement benefit rules on a voluntary retirement basis as of March 1, 2015 (excess of plan assets) will be transferred over 4 years to each employee’s new defined contribution plan account.

Pension costs reflected in the accompanying consolidated statements of operations are based on a projected benefit method of valuation. The funded status of pension plan liabilities are included in other current and other long term liabilities in the accompanying consolidated balance sheets. The current and long term portions of pension plan liabilities are $0.1 million and $6.0 million, respectively, for the year ended December 31, 2014. The Company continues to fund each plan in sufficient amounts to meet current benefits as well as to fund a portion of future benefits as permitted by regulatory authorities.

The net periodic pension cost for the U.K. Plan and the Japan Plan included the following components (in thousands):

	U.K. Plan									Japan Plan
	2014			2013			2012			2014			2013			2012
Components of the net periodic pension cost:
Service cost	$	—		$	—		$	—		$	101		$	99		$	121
Interest cost		1,589			1,403			1,359			13			10			15
Expected return on plan assets		(1,958	)		(1,595	)		(1,270	)		(6	)		(7	)		—
Amortization of the unrecognized transition    obligation		—			—			—			29			14			37
Amortization of prior service cost		—			—			—			18			12			3
Amortization of actuarial losses		374			668			392			—			—			—
Other		—			—			—			18			—			—
Net periodic pension cost	$	5		$	476		$	481		$	173		$	128		$	176

The actuarial assumptions used to compute the net periodic pension cost for the years ended December 31, 2014, 2013 and 2012, respectively, for the U.K. Plan and the Japan Plan were as follows:

	U.K. Plan									Japan Plan
	2014			2013			2012			2014			2013			2012
Weighted-average discount rate		4.6	%		4.3	%		4.9	%		1.0	%		1.3	%		1.2	%
Weighted-average rate of compensation increase		—			—			—			3.0	%		3.0	%		3.0	%
Weighted-average long-term rate of return on plan assets		5.9	%		5.7	%		5.0	%		1.0	%		1.0	%		—

The actuarial assumptions used to compute the funded status as of December 31, 2014 and 2013, respectively, for the U.K. Plan and the Japan Plan were as follows:

	U.K. Plan						Japan Plan
	2014			2013			2014		2013
Weighted-average discount rate		3.5	%		4.6	%		—		1.0	%
Weighted-average rate of compensation increase		—			—			—		3.0	%
Rate of inflation		3.6	%		2.7	%		—		—

The discount rates used are derived on (AA) corporate bonds that have maturities approximating the terms of the related obligations. In estimating the expected return on plan assets, the Company considered the historical performance of the major asset classes held and current forecasts of future rates of return for these asset classes.

The following table provides a reconciliation of benefit obligations and plan assets of the U.K. Plan and the Japan Plan (in thousands):

	U.K. Plan						Japan Plan
	2014			2013			2014			2013
Change in benefit obligation:
Projected benefit obligation at beginning of year	$	35,193		$	34,713		$	1,123		$	1,613
Service cost		—			—			101			99
Interest cost		1,589			1,403			13			10
Actuarial (gains) losses		6,060			(889	)		(49	)		(58	)
Benefits paid		(1,006	)		(688	)		(340	)		(928	)
Plan curtailments		—			—			(252	)		—
Foreign currency exchange rate changes		(2,415	)		654			145			387
Projected benefit obligation at end of year	$	39,421		$	35,193		$	741		$	1,123
Accumulated benefit obligation at end of year	$	39,421		$	35,193		$	741		$	833
Change in plan assets:
Fair value of plan assets at beginning of year	$	33,457		$	28,629		$	537		$	801
Actual return on plan assets		2,234			3,903			3			4
Employer contributions		1,000			847			253			521
Benefits paid		(1,006	)		(688	)		(340	)		(928	)
Foreign currency exchange rate changes		(2,075	)		766			(41	)		139
Fair value of plan assets at end of year	$	33,610		$	33,457		$	412		$	537
Funded status at end of year	$	(5,811	)	$	(1,736	)	$	(329	)	$	(586	)
Amounts included in accumulated other comprehensive loss not yet recognized in net periodic pension cost
Net actuarial (loss) gain	$	(11,890	)	$	(7,142	)	$	—		$	2
Prior service cost	$	—		$	—		$	—		$	(211	)
Net transition obligation	$	—		$	—		$	—		$	(163	)
Amounts expected to be amortized from accumulated other comprehensive loss into net periodic cost over the next fiscal year consists of:
Net actuarial (loss) gain	$	892		$	386		$	—		$	—
Prior service cost	$	—		$	—		$	—		$	12
Net transition obligation	$	—		$	—		$	—		$	19

The following table reflects the total expected benefit payments to plan participants and have been estimated based on the same assumptions used to measure the Company’s benefit obligations as of December 31, 2014 (in thousands):

	U.K. Plan		Japan Plan
2015	$	827	$	514
2016		974		76
2017		1,092		76
2018		900		75
2019		1,290		-
2020-2024		8,097		-
Total	$	13,180	$	741

In the U.K., funding valuations are conducted every three years in order to determine the future level of contributions. The Company’s latest funding valuation was completed in August 2013. Based on the results of the valuation, the Company’s annual contributions to the U.K. Plan are $1.0 million per year. The Company anticipates that contributions for 2015 will be $1.0 million for the U.K. Plan and $0.1 million for the Japan Plan.

Fair Value of Plan Assets

In the U.K., the Company’s overall objective is to invest plan assets in a portfolio of diversified assets, primarily through the use of institutional collective funds, to achieve long-term growth. The strategic asset allocation uses a combination of risk controlled and index strategies in fixed income and global equities. The target allocations are approximately 60% to funds investing in global equities, approximately 23% to funds investing in global bonds, approximately 7% to alternative assets (including private equity and debt, real estate and hedge funds), and approximately 10% in cash.

In Japan, the investment strategy is primarily focused on the preservation of principal invested in insurance contracts.

The following table summarizes the fair values of Plan assets as of December 31, 2014 by asset category (in thousands):

	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Asset Category
U.K. Plan
Mutual Funds:
Balanced (1)	$	16,287	$	—	$	16,287	$	—
Growth (2)		17,149		—		17,149		—
Cash		174		174		—		—
Total	$	33,610	$	174	$	33,436	$	—
Japan Plan
Insurance contracts (3)	$	412	$	—	$	412	$	—
Total	$	412	$	—	$	412	$	—

(1) This class comprises a diversified portfolio of global investments which seeks a balanced return between capital growth and fixed income and is allocated on a weighted average basis as follows: equities (54%), bonds (32%), other assets (5%) and cash (9%).

(2) This class comprises a diversified portfolio of global investments which seeks long-term capital growth and is allocated on a weighted average basis as follows: equities (67%), bonds (15%), other assets (8%) and cash (10%).

(3) This class represents funds invested in insurance contracts.

The following table summarizes the fair values of Plan assets as of December 31, 2013 by asset category (in thousands):

	Fair Value		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Other Unobservable Inputs (Level 3)
Asset Category
U.K. Plan
Mutual Funds:
Balanced (1)	$	16,260	$	—	$	16,260	$	—
Growth (2)		17,060		—		17,060		—
Cash		137		137		—		—
Total	$	33,457	$	137	$	33,320	$	—
Japan Plan
Insurance contracts (3)	$	537	$	—	$	537	$	—
Total	$	537	$	—	$	537	$	—

(1) This class comprises a diversified portfolio of global investments which seeks a balanced return between capital growth and fixed income and is allocated on a weighted average basis as follows: equities (51%), bonds (33%), other assets (8%) and cash (8%).

(2) This class comprises a diversified portfolio of global investments which seeks long-term capital growth and is allocated on a weighted average basis as follows: equities (70%), other assets (14%), bonds (9%), and cash (7%).

(3) This class represents funds invested in insurance contracts.

The tables above present the fair value of plan assets in accordance with the fair value hierarchy. Certain pension plan assets are measured using net asset value per share (or its equivalent) and are reported as a level 2 investment above, as these investments have quoted prices in inactive markets; and significant other observable inputs which can be corroborated by observable market data for substantially the full term of the plan assets.

Defined Contribution Plans

The Company has defined contribution employee savings plans in the U.K. and the U.S. The Company matches the contributions of participating employees on the basis of percentages specified in each plan. Company matching contributions to the plans were $2.6 million, $1.7 million and $1.3 million for the years ended December 31, 2014, 2013 and 2012, respectively.

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Actual Cash and Non-Cash Charges of the Restructuring Plan (Details) (2011 Restructuring, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Restructuring Cost And Reserve [Line Items]
Total restructuring costs	$ 389	$ 1,287	$ 1,584
Cumulative Costs	4,054
Cash Charges
Restructuring Cost And Reserve [Line Items]
Total restructuring costs	(235)	1,037	1,540
Cumulative Costs	3,048
Non-Cash Charges
Restructuring Cost And Reserve [Line Items]
Total restructuring costs	624	250	44
Cumulative Costs	$ 1,006