Basis Of Presentation	9 Months Ended
Oct. 02, 2011
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis Of Presentation	Basis of Presentation The accompanying condensed consolidated financial statements include our accounts and the accounts of our subsidiaries. All intercompany accounts and transactions have been eliminated. Our interim financial statements have been prepared in accordance with generally accepted accounting principles in the United States (U.S. GAAP) for interim financial information and the rules and regulations of the Securities and Exchange Commission (SEC) for interim financial statements and accounting policies, consistent, in all material respects with those applied in preparing our audited consolidated financial statements included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2010, filed with the SEC on March 1, 2011 (2010 Form 10-K) and include all adjustments, consisting of only normal recurring adjustments considered necessary for fair presentation. Certain immaterial amounts of service and product costs for prior periods have been reclassified between product cost of sales and service cost of sales in the Condensed Consolidated Statements of Operations to be consistent with current presentation. Our fiscal periods end on the Saturday closest to month-end, except that our fiscal year ends on December 31. All references to the quarter refer to our fiscal quarter. Our fiscal quarters covered by this report ended on October 1, 2011 and October 2, 2010. Operating results for the three month and nine month periods ended October 1, 2011 are not necessarily indicative of the results that may be expected for the year ending December 31, 2011, or any future periods. USE OF ESTIMATES — The preparation of the financial statements and related disclosures in conformity with accounting principles generally accepted in the United States requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and the related disclosure of contingent assets and liabilities at the date of the consolidated financial statements. By their nature, these estimates and judgments are subject to an inherent degree of uncertainty. On an ongoing basis, we evaluate our estimates, including those related to inventories, warranty obligations, purchase order commitments, asset retirement obligations, bad debts, estimated useful lives of fixed assets, asset impairment, income taxes, intangible assets, contingencies and litigation. We base our estimates on historical experience and on various other analyses and assumptions that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions. IMPACT OF RECENTLY ISSUED ACCOUNTING STANDARDS — In January 2010, The FASB issued ASU No. 2010-06, Fair Value Measurements and Disclosures (Topic 820) – Improving Disclosures about Fair Value Measurements, to provide amendments to Subtopic 820-10 that require new disclosures for transfers in and out of Levels 1 and 2 and for activity in Level 3 fair value measurements. It also clarifies existing disclosures for level of disaggregation and disclosures about inputs and valuation techniques. The update is effective for interim and annual reporting periods beginning on January 1, 2010, except for the disclosures of roll forward activities in Level 3 fair value measurements. Those disclosures are effective for interim and annual reporting periods beginning on January 1, 2011. The adoption of the update did not have an impact on our consolidated financial statements. In June 2011, the FASB issued ASU No. 2011-05, Comprehensive Income (Topic 220): Presentation of Comprehensive Income to increase the prominence of items reported in other comprehensive income. Specifically, the new guidance allows an entity to present components of net income or other comprehensive income in one continuous statement, referred to as the statement of comprehensive income, or in two separate, but consecutive statements. The new guidance eliminates the current option to report other comprehensive income and its components in the consolidated statement of shareholder’s equity. While the new guidance changes the presentation of comprehensive income, there are no changes to the components that are recognized in net income or other comprehensive income under current accounting guidance. This new guidance is effective for fiscal years and interim periods beginning after December 15, 2011. We do not believe the adoption of the new guidance will have an impact on our consolidated financial position, results of operations or cash flows. Revenue Recognition We recognize revenue when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the seller’s price is fixed or determinable, and collectability is reasonably assured. We derive revenue from four sources—system sales, spare parts sales, service contracts and license fees. Provided all other criteria are met, we recognize revenues on system sales when we have received customer acceptance of the system. In the event that terms of the sale provide for a lapsing customer acceptance period, we recognize revenue upon the expiration of the lapsing acceptance period or customer acceptance, whichever occurs first. In these instances, which are infrequent, revenue is recorded only if the product has met product specifications prior to shipment and management deems that no significant uncertainties as to product performance exist. Our transactions frequently include the sale of systems and services under multiple element arrangements. In situations with multiple deliverables, revenue is recognized upon the delivery of the separate elements and when we receive customer acceptance or are otherwise released from our customer acceptance obligations. In the first quarter of 2011, we adopted Accounting Standard Update (“ASU”) No. 2009-13, Revenue Recognition (Topic 605) – Multi-Deliverables Revenue Arrangements, a Consensus of the FASB Emerging Issues Task Force on a prospective basis for applicable transactions originating or materially modified on or subsequent to January 1, 2011. The new standard changed the requirements for establishing separate units of accounting in a multiple element arrangement and requires the allocation of arrangement consideration to each deliverable to be based on the relative selling price. Implementation of this new authoritative guidance had an insignificant impact on reported revenue as compared to revenue under previous guidance, as the new guidance did not change the units of accounting within sales arrangements and the elimination of the residual method for the allocation of arrangement consideration had an immaterial impact on the amount and timing of reported revenue. For multiple element arrangements entered into or materially modified on or subsequent to January 1, 2011, the total consideration for an arrangement is allocated among the separate elements in the arrangement based on a selling price hierarchy. The selling price hierarchy for a deliverable is based on (i) vendor specific objective evidence (VSOE); if available; (ii) third party evidence of selling price if VSOE is not available; or (iii) an estimated selling price, if neither VSOE nor third party evidence is available. If we have not established VSOE and cannot obtain third party evidence of selling price, we determine our estimate of the relative selling price by considering our production costs and historical margins of similar products or services. We believe this best represents the price at which we would transact a sale if the product or service were sold on a stand-alone basis. We regularly review the method used to determine our relative selling price and update any estimates accordingly. We limit the amount of revenue recognized for delivered elements to the amount that is not contingent on the future delivery of products or services or other future performance obligations. For multiple element arrangements entered into prior to January 1, 2011, revenue is allocated among the separate accounting units based on the residual method under which the revenue is allocated to undelivered elements based on fair value of such undelivered elements and the residual amounts of revenue are allocated to delivered elements, provided the delivered elements have value on a stand alone basis, there is objective and reliable evidence of fair value for the undelivered elements, the arrangement does not include a general right of return relative to the delivered item and delivery or performance of the undelivered item(s) is considered probable and substantially in our control. The maximum revenue recognized on a delivered element is limited to the amount that is not contingent upon the delivery of additional items. We generally recognize revenue from spare parts sales upon shipment, as our products are generally sold on terms that transfer title and risk of ownership when it leaves our site. We sell service contracts for which revenue is deferred and recognized ratably over the contract period (for time-based service contracts) or as service hours are delivered (for contracts based on a purchased quantity of hours). We recognize license revenue from transactions in which our systems are re-sold by our customers to third parties, as well as from royalty arrangements. Costs related to deferred product revenues are capitalized (deferred) and recognized at the time of revenue recognition. Deferred product revenue and costs are netted on our balance sheet, under the caption “deferred product and services income.” Costs incurred for shipping and handling are included in cost of sales. Other Assets Included in other assets for the three month period ended October 1, 2011 is restricted cash in the amount of $0.2 million. The restricted cash is in the form of an interest bearing account. Our obligation will be released upon the completion of our warranty obligation for a certain customer.

Basis of Presentation

The accompanying condensed consolidated financial statements include our accounts and the accounts of our subsidiaries. All intercompany accounts and transactions have been eliminated.

Our interim financial statements have been prepared in accordance with generally accepted accounting principles in the United States (U.S. GAAP) for interim financial information and the rules and regulations of the Securities and Exchange Commission (SEC) for interim financial statements and accounting policies, consistent, in all material respects with those applied in preparing our audited consolidated financial statements included in our Annual Report on Form 10-K for the fiscal year ended December 31, 2010, filed with the SEC on March 1, 2011 (2010 Form 10-K) and include all adjustments, consisting of only normal recurring adjustments considered necessary for fair presentation.

Certain immaterial amounts of service and product costs for prior periods have been reclassified between product cost of sales and service cost of sales in the Condensed Consolidated Statements of Operations to be consistent with current presentation.

Our fiscal periods end on the Saturday closest to month-end, except that our fiscal year ends on December 31. All references to the quarter refer to our fiscal quarter. Our fiscal quarters covered by this report ended on October 1, 2011 and October 2, 2010.

Operating results for the three month and nine month periods ended October 1, 2011 are not necessarily indicative of the results that may be expected for the year ending December 31, 2011, or any future periods.

USE OF ESTIMATES — The preparation of the financial statements and related disclosures in conformity with accounting principles generally accepted in the United States requires us to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and the related disclosure of contingent assets and liabilities at the date of the consolidated financial statements. By their nature, these estimates and judgments are subject to an inherent degree of uncertainty. On an ongoing basis, we evaluate our estimates, including those related to inventories, warranty obligations, purchase order commitments, asset retirement obligations, bad debts, estimated useful lives of fixed assets, asset impairment, income taxes, intangible assets, contingencies and litigation. We base our estimates on historical experience and on various other analyses and assumptions that we believe to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities that are not readily apparent from other sources. Actual results may differ from these estimates under different assumptions or conditions.

IMPACT OF RECENTLY ISSUED ACCOUNTING STANDARDS — In January 2010, The FASB issued ASU No. 2010-06, Fair Value Measurements and Disclosures (Topic 820) – Improving Disclosures about Fair Value Measurements, to provide amendments to Subtopic 820-10 that require new disclosures for transfers in and out of Levels 1 and 2 and for activity in Level 3 fair value measurements. It also clarifies existing disclosures for level of disaggregation and disclosures about inputs and valuation techniques. The update is effective for interim and annual reporting periods beginning on January 1, 2010, except for the disclosures of roll forward activities in Level 3 fair value measurements. Those disclosures are effective for interim and annual reporting periods beginning on January 1, 2011. The adoption of the update did not have an impact on our consolidated financial statements.

In June 2011, the FASB issued ASU No. 2011-05, Comprehensive Income (Topic 220): Presentation of Comprehensive Income to increase the prominence of items reported in other comprehensive income. Specifically, the new guidance allows an entity to present components of net income or other comprehensive income in one continuous statement, referred to as the statement of comprehensive income, or in two separate, but consecutive statements. The new guidance eliminates the current option to report other comprehensive income and its components in the consolidated statement of shareholder’s equity. While the new guidance changes the presentation of comprehensive income, there are no changes to the components that are recognized in net income or other comprehensive income under current accounting guidance. This new guidance is effective for fiscal years and interim periods beginning after December 15, 2011. We do not believe the adoption of the new guidance will have an impact on our consolidated financial position, results of operations or cash flows.

Revenue Recognition

We recognize revenue when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the seller’s price is fixed or determinable, and collectability is reasonably assured. We derive revenue from four sources—system sales, spare parts sales, service contracts and license fees.

Provided all other criteria are met, we recognize revenues on system sales when we have received customer acceptance of the system. In the event that terms of the sale provide for a lapsing customer acceptance period, we recognize revenue upon the expiration of the lapsing acceptance period or customer acceptance, whichever occurs first. In these instances, which are infrequent, revenue is recorded only if the product has met product specifications prior to shipment and management deems that no significant uncertainties as to product performance exist.

Our transactions frequently include the sale of systems and services under multiple element arrangements. In situations with multiple deliverables, revenue is recognized upon the delivery of the separate elements and when we receive customer acceptance or are otherwise released from our customer acceptance obligations.

In the first quarter of 2011, we adopted Accounting Standard Update (“ASU”) No. 2009-13, Revenue Recognition (Topic 605) – Multi-Deliverables Revenue Arrangements, a Consensus of the FASB Emerging Issues Task Force on a prospective basis for applicable transactions originating or materially modified on or subsequent to January 1, 2011. The new standard changed the requirements for establishing separate units of accounting in a multiple element arrangement and requires the allocation of arrangement consideration to each deliverable to be based on the relative selling price. Implementation of this new authoritative guidance had an insignificant impact on reported revenue as compared to revenue under previous guidance, as the new guidance did not change the units of accounting within sales arrangements and the elimination of the residual method for the allocation of arrangement consideration had an immaterial impact on the amount and timing of reported revenue.

For multiple element arrangements entered into or materially modified on or subsequent to January 1, 2011, the total consideration for an arrangement is allocated among the separate elements in the arrangement based on a selling price hierarchy. The selling price hierarchy for a deliverable is based on (i) vendor specific objective evidence (VSOE); if available; (ii) third party evidence of selling price if VSOE is not available; or (iii) an estimated selling price, if neither VSOE nor third party evidence is available. If we have not established VSOE and cannot obtain third party evidence of selling price, we determine our estimate of the relative selling price by considering our production costs and historical margins of similar products or services. We believe this best represents the price at which we would transact a sale if the product or service were sold on a stand-alone basis. We regularly review the method used to determine our relative selling price and update any estimates accordingly. We limit the amount of revenue recognized for delivered elements to the amount that is not contingent on the future delivery of products or services or other future performance obligations.

For multiple element arrangements entered into prior to January 1, 2011, revenue is allocated among the separate accounting units based on the residual method under which the revenue is allocated to undelivered elements based on fair value of such undelivered elements and the residual amounts of revenue are allocated to delivered elements, provided the delivered elements have value on a stand alone basis, there is objective and reliable evidence of fair value for the undelivered elements, the arrangement does not include a general right of return relative to the delivered item and delivery or performance of the undelivered item(s) is considered probable and substantially in our control. The maximum revenue recognized on a delivered element is limited to the amount that is not contingent upon the delivery of additional items.

We generally recognize revenue from spare parts sales upon shipment, as our products are generally sold on terms that transfer title and risk of ownership when it leaves our site. We sell service contracts for which revenue is deferred and recognized ratably over the contract period (for time-based service contracts) or as service hours are delivered (for contracts based on a purchased quantity of hours). We recognize license revenue from transactions in which our systems are re-sold by our customers to third parties, as well as from royalty arrangements.

Costs related to deferred product revenues are capitalized (deferred) and recognized at the time of revenue recognition. Deferred product revenue and costs are netted on our balance sheet, under the caption “deferred product and services income.”

Costs incurred for shipping and handling are included in cost of sales.

Other Assets

Included in other assets for the three month period ended October 1, 2011 is restricted cash in the amount of $0.2 million. The restricted cash is in the form of an interest bearing account. Our obligation will be released upon the completion of our warranty obligation for a certain customer.