10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

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

For the quarterly period ended March 31, 2013

OR

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

Commission file number 1-10235

IDEX CORPORATION

(Exact Name of Registrant as Specified in its Charter)

Delaware	36-3555336
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
1925 West Field Court, Lake Forest, Illinois	60045
(Address of principal executive offices)	(Zip Code)

Registrant’s telephone number: (847) 498-7070

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 for 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 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 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  þ	Accelerated filer  ¨	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

Number of shares of common stock of IDEX Corporation outstanding as of April 29, 2013: 82,231,721.

TABLE OF CONTENTS

Part I. Financial Information
Item 1.	Financial Statements	1
	Condensed Consolidated Balance Sheets	1
	Condensed Consolidated Statements of Operations	2
	Condensed Consolidated Statements of Comprehensive Income	3
	Condensed Consolidated Statements of Shareholders’ Equity	4
	Condensed Consolidated Statements of Cash Flows	5
	Notes to Condensed Consolidated Financial Statements	6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	23
	Cautionary Statement Under the Private Securities Litigation Reform Act	23
	Overview and Outlook	23
	Results of Operations	24
	Liquidity and Capital Resources	27
Item 3.	Quantitative and Qualitative Disclosures About Market Risk	29
Item 4.	Controls and Procedures	30
Part II. Other Information
Item 1.	Legal Proceedings	31
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	31
Item 6.	Exhibits	31
Signatures		32
Exhibit Index		33

PART I. FINANCIAL INFORMATION

Item 1.  Financial Statements.

IDEX CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands except share and per share amounts)

(unaudited)

	March 31, 2013			December 31, 2012
ASSETS
Current assets
Cash and cash equivalents	$	341,045		$	318,864
Receivables, less allowance for doubtful accounts of $5,758 at March 31, 2013 and $5,596 at December 31, 2012		269,873			256,095
Inventories — net		239,575			234,950
Other current assets		71,425			71,956
Total current assets		921,918			881,865
Property, plant and equipment — net		215,091			219,161
Goodwill		1,325,939			1,321,727
Intangible assets — net		339,641			341,372
Other noncurrent assets		20,011			21,265
Total assets	$	2,822,600		$	2,785,390
LIABILITIES AND SHAREHOLDERS’ EQUITY
Current liabilities
Trade accounts payable	$	122,376		$	117,341
Accrued expenses		154,470			150,176
Current portion of long-term debt and short-term borrowings		6,776			7,335
Dividends payable		—			16,575
Total current liabilities		283,622			291,427
Long-term borrowings		815,562			779,241
Deferred income taxes		121,017			121,349
Other noncurrent liabilities		120,752			128,375
Total liabilities		1,340,953			1,320,392
Commitments and contingencies
Shareholders’ equity
Preferred stock:
Authorized: 5,000,000 shares, $.01 per share par value; Issued: None		—			—
Common stock:
Authorized: 150,000,000 shares, $.01 per share par value
Issued: 88,360,659 shares at March 31, 2013 and 87,732,405 shares at December 31, 2012		884			877
Additional paid-in capital		568,202			550,682
Retained earnings		1,174,841			1,113,541
Treasury stock at cost: 5,713,071 shares at March 31, 2013 and 5,005,518 shares at December 31, 2012		(194,087	)		(156,699	)
Accumulated other comprehensive loss		(68,193	)		(43,403	)
Total shareholders’ equity		1,481,647			1,464,998
Total liabilities and shareholders’ equity	$	2,822,600		$	2,785,390

See Notes to Condensed Consolidated Financial Statements

1

IDEX CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands except per share amounts)

(unaudited)

	Three Months Ended March 31,
	2013		2012
Net sales	$	494,448	$	489,417
Cost of sales		282,451		286,528
Gross profit		211,997		202,889
Selling, general and administrative expenses		117,285		113,382
Restructuring expenses		—		4,938
Operating income		94,712		84,569
Other income — net		1,279		117
Interest expense		10,557		10,662
Income before income taxes		85,434		74,024
Provision for income taxes		24,134		21,853
Net income	$	61,300	$	52,171
Basic earnings per common share	$	0.74	$	0.63
Diluted earnings per common share	$	0.74	$	0.62
Share data:
Basic weighted average common shares outstanding		82,197		82,804
Diluted weighted average common shares outstanding		83,152		83,902

See Notes to Condensed Consolidated Financial Statements

2

IDEX CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(in thousands)

(unaudited)

	Three Months Ended March 31
	2013			2012
Net income	$	61,300		$	52,171
Other comprehensive income
Reclassification adjustments for derivatives, net of tax		1,190			1,221
Pension and other postretirement adjustments, net of tax		1,273			1,123
Cumulative translation adjustment		(27,253	)		15,031
Other comprehensive (loss) income		(24,790	)		17,375
Comprehensive income	$	36,510		$	69,546

See Notes to Condensed Consolidated Financial Statements

3

IDEX CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY

(in thousands except share amounts)

(unaudited)

					Accumulated Other Comprehensive Income (Loss)
	Common Stock and Additional Paid-In Capital		Retained Earnings		Cumulative Translation Adjustment			Retirement Benefits Adjustments			Cumulative Unrealized Loss on Derivatives			Treasury Stock			Total Shareholders’ Equity
Balance, December 31, 2012	$	551,559	$	1,113,541	$	38,639		$	(45,645	)	$	(36,397	)	$	(156,699	)	$	1,464,998
Net income		—		61,300		—			—			—			—			61,300
Cumulative translation adjustment		—		—		(27,253	)		—			—			—			(27,253	)
Pension and other postretirement adjustments (net of tax of $0.7 million)		—		—		—			1,273			—			—			1,273
Amortization of forward starting swaps (net of tax of $0.7 million)		—		—		—			—			1,190			—			1,190
Issuance of 616,273 shares of common stock from issuance of unvested shares, exercise of stock options and deferred compensation plans, net of tax benefit		13,022		—		—			—			—			—			13,022
Repurchase of 706,491 shares of common stock		—		—		—			—			—			(35,653	)		(35,653	)
Unvested shares surrendered for tax withholding		—		—		—			—			—			(1,735	)		(1,735	)
Share-based compensation		4,505		—		—			—			—			—			4,505
Balance, March 31, 2013	$	569,086	$	1,174,841	$	11,386		$	(44,372	)	$	(35,207	)	$	(194,087	)	$	1,481,647

See Notes to Condensed Consolidated Financial Statements

4

IDEX CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(unaudited)

	Three Months Ended March 31,
	2013			2012
Cash flows from operating activities
Net income	$	61,300		$	52,171
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		8,948			9,238
Amortization of intangible assets		10,891			9,952
Amortization of debt issuance expenses		425			369
Share-based compensation expense		5,612			4,661
Deferred income taxes		(117	)		74
Excess tax benefit from share based compensation		(2,439	)		(2,118	)
Non-cash interest expense associated with forward starting swaps		1,872			1,925
Changes in:
Receivables		(14,843	)		(15,450	)
Inventories		(3,115	)		(212	)
Other current assets		(3,513	)		(7,144	)
Trade accounts payable		6,303			4,217
Accrued expenses		1,043			2,837
Other — net		(172	)		(1,778	)
Net cash flows provided by operating activities		72,195			58,742
Cash flows from investing activities
Cash purchases of property, plant and equipment		(7,625	)		(8,515	)
Acquisition of businesses, net of cash acquired		(34,648	)		—
Other — net		(57	)		(40	)
Net cash flows used in investing activities		(42,330	)		(8,555	)
Cash flows from financing activities
Borrowings under revolving facilities for acquisitions		34,648			—
Borrowings under revolving facilities		5,438			9,509
Payments under revolving facilities		(305	)		(48,009	)
Dividends paid		(16,575	)		(14,161	)
Proceeds from stock option exercises		10,758			24,366
Excess tax benefit from stock-based compensation		2,439			2,118
Purchase of common stock		(33,115	)		(10,183	)
Unvested shares surrendered for tax withholding		(1,735	)		(2,118	)
Other		—			(1,343	)
Net cash flows provided by (used in) financing activities		1,553			(39,821	)
Effect of exchange rate changes on cash and cash equivalents		(9,237	)		4,918
Net increase in cash		22,181			15,284
Cash and cash equivalents at beginning of year		318,864			230,259
Cash and cash equivalents at end of period	$	341,045		$	245,543
Supplemental cash flow information
Cash paid for:
Interest	$	545		$	2,537
Income taxes, net		7,002			9,292

See Notes to Condensed Consolidated Financial Statements

5

IDEX CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

1.    Basis of Presentation and Significant Accounting Policies

The condensed consolidated financial statements of IDEX Corporation (“IDEX” or the “Company”) have been prepared in accordance with the instructions to Form 10-Q under the Securities Exchange Act of 1934, as amended. The statements are unaudited but include all adjustments, consisting only of recurring items, except as noted, that the Company considers necessary for a fair presentation of the information set forth herein. The results of operations for the three months ended March 31, 2013 are not necessarily indicative of the results to be expected for the entire year.

The condensed consolidated financial statements and management’s discussion and analysis of financial condition and results of Operations should be read in conjunction with the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2012.

Adoption of New Accounting Standards

In February 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2013-02 which requires additional disclosures regarding the reporting of reclassifications out of accumulated other comprehensive income. ASU 2013-02 requires an entity to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period. This guidance is effective for reporting periods beginning after December 15, 2012. The Company adopted this guidance effective January 1, 2013 and its adoption did not impact the consolidated financial position, results of operations or cash flows of the Company. See Note 13 for a further discussion on other comprehensive income (loss).

New Accounting Pronouncements

In July 2012, the FASB issued ASU 2012-02, “Intangibles — Goodwill and Other (Topic 350): Testing Indefinite-Lived Intangible Assets for Impairment” which allows an entity to first assess qualitative factors to determine whether it is necessary to perform a quantitative impairment test of an indefinite-lived intangible asset. Under ASU 2012-02, an entity would not be required to calculate the fair value of an indefinite-lived intangible asset if the entity determines, based on qualitative assessment, that it is not more likely than not impaired. The revised standard is effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012. As of March 31, 2013, the Company did not apply ASU 2012-02, however the Company does not expect ASU 2012-02 to have a material impact on the consolidated financial position, results of operations or cash flows of the Company.

2.    Restructuring

During 2012, the Company recorded restructuring costs as a part of 2011 restructuring initiatives that support the implementation of key strategic efforts designed to facilitate long-term sustainable growth through cost reduction actions, primarily consisting of employee reductions and facility rationalization. The costs incurred related to these initiatives are included in Restructuring expenses in the Consolidated Statements of Operations while the related accruals are included in Accrued expenses in the Consolidated Balance Sheets. Severance costs primarily consist of severance benefits through payroll continuation, COBRA subsidies, outplacement services, conditional separation costs and employer tax liabilities, while exit costs primarily consist of asset disposals or impairments, the termination of a defined benefit plan, legal costs and relocation charges.

6

IDEX CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (continued)

(unaudited)

During the three months ended March 31, 2012, the Company recorded $4.9 million of pre-tax restructuring expenses related to its 2011 restructuring initiative for employee severance related to employee reductions across various functional areas as well as facility rationalization. The 2011 restructuring initiatives included severance benefits for 337 employees. The 2011 initiative was completed by the end of 2012 and no further restructuring is currently planned. Severance payments are expected to be fully paid in the next nine months using cash from operations.

Pre-tax restructuring expenses, by segment, for the quarter ended March 31, 2012, were as follows:

	Severance Costs		Exit Costs		Total
	(In thousands)
Fluid & Metering Technologies	$	2,659	$	—	$	2,659
Health & Science Technologies		1,150		305		1,455
Fire & Safety/Diversified Products		—		544		544
Corporate/Other		81		199		280
Total restructuring costs	$	3,890	$	1,048	$	4,938

Restructuring accruals of $4.2 million and $10.9 million at March 31, 2013 and December 31, 2012, respectively, are reflected in Accrued expenses in the Consolidated Balance Sheets as follows:

(In thousands)
Balance at January 1, 2013	$	10,887
Restructuring expenses		—
Payments/utilization		(6,682	)
Balance at March 31, 2013	$	4,205

3.    Acquisitions

All of the Company’s acquisitions have been accounted for under Accounting Standards Codification (“ASC”) 805, Business Combinations. Accordingly, the accounts of the acquired companies, after adjustments to reflect fair values assigned to assets and liabilities, have been included in the consolidated financial statements from their respective dates of acquisition.

2013 Acquisitions

On March 18, 2013, the Company acquired the assets of FTL Seals Technology, Ltd (“FTL”). FTL specializes in the design and application of high integrity rotary seals, specialty bearings, and other custom products for the oil & gas, mining, power generation, and marine markets. Located in Leeds, England, FTL has annual revenues of approximately $22.5 million (£15.0 million). FTL, along with Precision Polymer Engineering (“PPE”), operates within the Health & Science Technologies segment as part of the Sealing Solutions group (formerly the Containment group) and will expand the range of PPE’s technology expertise while also introducing adjacent markets. FTL was acquired for an aggregate purchase price of $34.6 million (£23.1 million) in cash. The $34.6 million cash payment was funded with borrowings under the Company’s revolving credit facility. Goodwill and intangible assets recognized as part of this transaction were $18.1 million and $13.0 million, respectively. The $18.1 million of goodwill is not deductible for tax purposes.

The purchase price for FTL has been allocated to the assets acquired and liabilities assumed based on estimated fair values at the date of the acquisition. These nonrecurring fair value measurements are classified as Level 3 in the fair value hierarchy. The Company is in the process of obtaining or finalizing appraisals of

7

IDEX CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (continued)

(unaudited)

intangible assets and it is continuing to evaluate the initial purchase price allocations, as of the acquisition date, which will be adjusted as additional information relative to the fair values of the assets and liabilities of the business become known. Accordingly, management has used its best estimate in the initial purchase price allocation as of the date of these financial statements.

The allocation of the acquisition costs to the assets acquired and liabilities assumed, based on their estimated fair values, is as follows:

(In thousands)
Accounts receivable	$	3,446
Inventory		4,524
Other current assets, net of cash acquired		133
Property, plant and equipment		1,384
Goodwill		18,084
Intangible assets		13,016
Total assets acquired		40,587
Total liabilities assumed		(5,939	)
Net assets acquired	$	34,648

Acquired intangible assets consist of trade names, non-compete agreements, customer relationships and unpatented technology. The goodwill recorded for the acquisition reflects the strategic fit, revenue and earnings growth potential of this business.

The acquired intangible assets and weighted average amortization periods are as follows:

(In thousands)	Total		Weighted Average Life
Trade names	$	1,005		15
Non-compete agreements		224		3
Customer relationships		10,950		9
Unpatented technology		837		8
2013 acquired intangible assets	$	13,016

The Company incurred $1.1 million of acquisition-related transaction costs in 2013. These costs were recorded in selling, general and administrative expense and were related to completed transactions, pending transactions and potential transactions, including transactions that ultimately were not completed.

2012 Acquisitions

On April 11, 2012, the Company acquired the stock of PPC. PPC specializes in optical components and coatings for applications in the fields of scientific research, aerospace, telecommunications and electronics manufacturing. Located in Boulder, Colorado, PPC has annual revenues of approximately $7.0 million. PPC operates within the Health & Science Technologies segment as a part of the IDEX Optics & Photonics platform. The Company acquired PPC for an aggregate purchase price of $20.6 million in cash, which was funded from operations. Goodwill and intangible assets recognized as part of this transaction were $13.9 million and $5.1 million, respectively. The $13.9 million of goodwill is not deductible for tax purposes.

8

IDEX CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (continued)

(unaudited)

On April 30, 2012, the Company acquired the stock of ERC. ERC is a leader in the manufacture of gas liquid separations and detection solutions for the life science, analytical instrumentation and clinical chemistry markets. ERC’s pioneering products include in-line membrane vacuum degassing solutions, refractive index detectors and ozone generation systems. ERC’s original equipment degassing solutions are considered the “standard” for many of the world’s leading instrument producers. Located in Kawaguchi, Japan, ERC has annual revenues of approximately $27.0 million (¥2.14 billion) and operates as part of the IDEX Health & Science platform within the Health & Science Technologies segment. The Company acquired ERC for an aggregate purchase price of $18.0 million (¥1.47 billion), consisting of $13.3 million in cash and assumption of approximately $4.7 million of debt. The cash payment was financed with borrowings under the Company’s revolving credit facility. Goodwill and intangible assets recognized as part of this transaction were $8.5 million and $5.6 million, respectively. The $8.5 million of goodwill is not deductible for tax purposes.

On July 20, 2012, the Company acquired the stock of Matcon. Matcon is a global leader in material processing solutions for high value powders used in the manufacture of pharmaceuticals, food, plastics, and fine chemicals. Matcon’s innovative products include the original cone valve powder discharge system and filling, mixing and packaging systems, all of which support their customers’ automation and process requirements. Matcon’s products are critical to their customers’ need to maintain clean, reliable and repeatable formulations of prepackaged foods and pharmaceuticals while helping them achieve lean and agile manufacturing. Located in Evesham, Worcestershire, England, Matcon has annual revenues of approximately $34.4 million (£22.0 million) and operates within the Health & Science Technologies segment as part of the Materials Process Technologies platform. The Company acquired Matcon for an aggregate purchase price of $45.8 million (£29.1 million), consisting of $35.0 million in cash, $2.4 million of working capital adjustments to be paid in the second quarter of 2013, and contingent consideration valued at $8.4 million as of the opening balance sheet date. The contingent consideration amount is based on 2012 and 2013 earnings before interest, income taxes, depreciation and amortization for Matcon and will be settled in the first six months of 2013 and 2014, respectively. Based on potential outcomes, the undiscounted amount of all future payments that the Company could be required to pay under the contingent consideration arrangement is estimated between $3.8 and $8.6 million. Approximately $15.0 million of the purchase price cash payment was financed with borrowings under the revolving credit facility. Goodwill and intangible assets recognized as part of this transaction were $28.0 million and $14.1 million, respectively. The $28.0 million of goodwill is not deductible for tax purposes.

The purchase price for PPC, ERC and Matcon was allocated to the assets acquired and liabilities assumed based on estimated fair values at the date of the acquisition.

4.    Business Segments

The Company has three reportable business segments: Fluid & Metering Technologies, Health & Science Technologies and Fire & Safety/Diversified Products.

The Fluid & Metering Technologies segment designs, produces and distributes positive displacement pumps, flow meters, injectors, and other fluid-handling pump modules and systems and provides flow monitoring and other services for the water and wastewater industries. The Health & Science Technologies segment designs, produces and distributes a wide range of precision fluidics, rotary lobe pumps, centrifugal and positive displacement pumps, roll compaction and drying systems used in beverage, food processing, pharmaceutical and cosmetics, pneumatic components and sealing solutions, including very high precision, low-flow rate pumping solutions required in analytical instrumentation, clinical diagnostics and drug discovery, high performance molded and extruded, biocompatible medical devices and implantables, air compressors used in medical, dental and industrial applications, optical components and coatings for applications in the fields of

9

IDEX CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (continued)

(unaudited)

scientific research, defense, biotechnology, aerospace, telecommunications and electronics manufacturing, laboratory and commercial equipment used in the production of micro and nano scale materials, precision photonic solutions used in life sciences, research and defense markets, and precision gear and peristaltic pump technologies that meet exacting original equipment manufacturer specifications. The Fire & Safety/Diversified Products segment produces firefighting pumps and controls, rescue tools, lifting bags and other components and systems for the fire and rescue industry, engineered stainless steel banding and clamping devices used in a variety of industrial and commercial applications, and precision equipment for dispensing, metering and mixing colorants and paints used in a variety of retail and commercial businesses around the world.

Information on the Company’s business segments is presented below, based on the nature of products and services offered. The Company evaluates performance based on several factors, of which operating income is the primary financial measure. Intersegment sales are accounted for at fair value as if the sales were to third parties.

	Three Months Ended March 31,
	2013			2012
	(In thousands)
Net sales:
Fluid & Metering Technologies:
External customers	$	211,407		$	212,466
Intersegment sales		348			252
Total group sales		211,755			212,718
Health & Science Technologies:
External customers		171,674			173,221
Intersegment sales		1,194			565
Total group sales		172,868			173,786
Fire & Safety/Diversified Products:
External customers		111,367			103,730
Intersegment sales		146			320
Total group sales		111,513			104,050
Intersegment elimination		(1,688	)		(1,137	)
Total net sales	$	494,448		$	489,417
Operating income and income before income taxes:
Fluid & Metering Technologies	$	48,079		$	44,526
Health & Science Technologies		32,267			30,270
Fire & Safety/Diversified Products		28,232			23,688
Corporate office and other		(13,866	)		(13,915	)
Total operating income		94,712			84,569
Interest expense		10,557			10,662
Other income-net		1,279			117
Income before income taxes	$	85,434		$	74,024

10

IDEX CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (continued)

(unaudited)

	March 31, 2013		December 31, 2012
	(In thousands)
Assets:
Fluid & Metering Technologies	$	1,033,752	$	1,023,143
Health & Science Technologies		1,123,755		1,102,868
Fire & Safety/Diversified Products		494,258		488,886
Corporate office and other(1)		170,835		170,493
Total assets	$	2,822,600	$	2,785,390

(1) Includes intersegment eliminations.

5.    Earnings Per Common Share

Earnings per common share (“EPS”) are computed by dividing net income by the weighted average number of shares of common stock (basic) plus common stock equivalents outstanding (diluted) during the period. Common stock equivalents consist of stock options, which have been included in the calculation of weighted average shares outstanding using the treasury stock method, unvested shares, and shares issuable in connection with certain deferred compensation agreements (“DCUs”).

ASC 260 “Earnings Per Share”, provides that all outstanding unvested share-based payment awards that contain rights to nonforfeitable dividends participate in undistributed earnings with common shareholders. If awards are considered participating securities, the Company is required to apply the two-class method of computing basic and diluted earnings per share. The Company has determined that its outstanding unvested shares are participating securities. Accordingly, earnings per common share are computed using the two-class method prescribed by ASC 260. Net income attributable to common shareholders was reduced by $0.3 million and $0.2 million for the three months ended March 31, 2013 and 2012, respectively.

Basic weighted average shares reconciles to diluted weighted average shares as follows:

	Three Months Ended March 31,
	2013		2012
	(In thousands)
Basic weighted average common shares outstanding		82,197		82,804
Dilutive effect of stock options, unvested shares, and DCUs		955		1,098
Diluted weighted average common shares outstanding		83,152		83,902

Options to purchase approximately 0.6 million and 1.3 million shares of common stock for the three months ended March 31, 2013 and 2012, respectively, were not included in the computation of diluted EPS because the effect of their inclusion would be antidilutive.

11

IDEX CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (continued)

(unaudited)

6.    Inventories

The components of inventories as of March 31, 2013 and December 31, 2012 were:

	March 31, 2013		December  31, 2012
	(In thousands)
Raw materials and component parts	$	136,868	$	139,229
Work-in-process		36,915		33,025
Finished goods		65,792		62,696
Total	$	239,575	$	234,950

Inventories are stated at the lower of cost or market. Cost, which includes material, labor, and factory overhead, is determined on a FIFO basis.

7.    Goodwill and Intangible Assets

The changes in the carrying amount of goodwill for the three months ended March 31, 2013, by reportable business segment, were as follows:

(In thousands)	Fluid & Metering Technologies			Health & Science Technologies			Fire &  Safety/ Diversified Products			Total
Balance at December 31, 2012	$	524,325		$	553,204		$	244,198		$	1,321,727
Foreign currency translation		(3,362	)		(5,854	)		(4,656	)		(13,872	)
Acquisitions		—			18,084			—			18,084
Balance at March 31, 2013	$	520,963		$	565,434		$	239,542		$	1,325,939

ASC 350 “Goodwill and Other Intangible Assets” requires that goodwill be tested for impairment at the reporting unit level on an annual basis and between annual tests if an event occurs or circumstances change that would more likely than not reduce the fair value of the reporting unit below its carrying value. Annually on October 31, goodwill and other acquired intangible assets with indefinite lives are tested for impairment. The Company did not consider there to be any triggering event that would require an interim impairment assessment, therefore none of the goodwill or other acquired intangible assets with indefinite lives were tested for impairment during the three months ended March 31, 2013.

12

IDEX CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (continued)

(unaudited)

The following table provides the gross carrying value and accumulated amortization for each major class of intangible asset at March 31, 2013 and December 31, 2012:

	At March 31, 2013									At December 31, 2012
	Gross Carrying Amount		Accumulated Amortization			Net		Weighted Average Life		Gross Carrying Amount		Accumulated Amortization			Net
	(In thousands)									(In thousands)
Amortized intangible assets:
Patents	$	10,526	$	(4,361	)	$	6,165		11	$	10,650	$	(4,273	)	$	6,377
Trade names		102,907		(22,999	)		79,908		16		103,113		(21,603	)		81,510
Customer relationships		237,937		(98,582	)		139,355		10		230,196		(93,273	)		136,923
Non-compete agreements		3,697		(2,965	)		732		3		3,505		(2,827	)		678
Unpatented technology		74,291		(25,967	)		48,324		11		74,758		(24,211	)		50,547
Other		6,832		(3,775	)		3,057		10		6,841		(3,604	)		3,237
Total amortized intangible assets		436,190		(158,649	)		277,541				429,063		(149,791	)		279,272
Unamortized intangible asset:
Banjo trade name		62,100		—			62,100				62,100		—			62,100
Total intangible assets	$	498,290	$	(158,649	)	$	339,641			$	491,163	$	(149,791	)	$	341,372

The unamortized Banjo trade name is an indefinite lived intangible asset which is tested for impairment on an annual basis in accordance with ASC 350 or more frequently if events or changes in circumstances indicate that the asset might be impaired.

8.    Accrued Expenses

The components of accrued expenses as of March 31, 2013 and December 31, 2012 were:

	March  31, 2013		December  31, 2012
	(In thousands)
Payroll and related items	$	48,445	$	55,618
Management incentive compensation		5,299		15,974
Income taxes payable		22,896		10,284
Deferred income taxes		386		—
Insurance		9,445		8,974
Warranty		4,816		4,875
Deferred revenue		11,765		9,682
Restructuring		4,205		10,887
Liability for uncertain tax positions		2,685		2,679
Accrued interest		9,428		1,713
Contingent consideration for acquisition		8,644		3,528
Other		26,456		25,962
Total accrued expenses	$	154,470	$	150,176

13

IDEX CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (continued)

(unaudited)

9.    Other Noncurrent Liabilities

The components of noncurrent liabilities as of March 31, 2013 and December 31, 2012 were:

	March  31, 2013		December  31, 2012
	(In thousands)
Pension and retiree medical obligations	$	95,061	$	96,853
Liability for uncertain tax positions		5,014		4,989
Deferred revenue		6,811		6,534
Contingent consideration for acquisition .		—		5,515
Other		13,866		14,484
Total other noncurrent liabilities	$	120,752	$	128,375

10.    Borrowings

Borrowings at March 31, 2013 and December 31, 2012 consisted of the following:

	March 31, 2013		December 31, 2012
	(In thousands)
Revolving credit facility	$	61,000	$	21,000
4.2% Senior Notes, due December 2021		349,216		349,197
4.5% Senior Notes, due December 2020		298,723		298,689
2.58% Senior Euro Notes, due June 2015		103,664		107,042
Other borrowings		9,735		10,648
Total borrowings		822,338		786,576
Less current portion		6,776		7,335
Total long-term borrowings	$	815,562	$	779,241

On June 27, 2011, the Company and certain of its subsidiaries entered into a credit agreement (the “Credit Agreement”), as borrowers (the “Borrowers”), with Bank of America, N.A., as administrative agent, swing line lender and an issuer of letters of credit, and other lenders party thereto which provided for a new revolving credit facility (the “Revolving Facility”). The Revolving Facility replaced the Company’s previous $600.0 million credit facility, which expired in December 2011.

The Revolving Facility is in an aggregate principal amount of $700.0 million with a maturity date of June 27, 2016. The maturity date may be extended under certain conditions for an additional one-year term prior to the second anniversary of the initial closing date of June 27, 2011. Up to $75.0 million of the Revolving Facility is available for the issuance of letters of credit. Additionally, up to $25.0 million of the Revolving Facility is available to the Company for swing line loans, available on a same-day basis.

Proceeds of the Revolving Facility are available for use for working capital and other general corporate purposes, including refinancing existing debt of the Company and its subsidiaries. The Company may request increases in the lending commitments under the Credit Agreement, but the aggregate lending commitments may not exceed $950.0 million. The Company has the right, subject to certain conditions set forth in the Credit Agreement, to designate certain foreign subsidiaries of the Company as borrowers under the Credit Agreement. In connection with any such designation, the Company is required to guarantee the obligations of any such subsidiaries under the Credit Agreement. Under the Credit Agreement, Fast & Fluid Management Europe B.V., (“FME”) and IDEX UK Ltd. (“IDEX UK”) were approved by the lenders as designated borrowers. At March 31, 2013, FME and IDEX UK had no borrowings under the Revolving Facility.

14

IDEX CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (continued)

(unaudited)

Borrowings under the Revolving Facility bear interest, at either an alternate base rate or an adjusted LIBOR rate plus, an applicable margin. Such applicable margin is based on the Company’s senior, unsecured, long-term debt rating and can range from .875% to 1.70%. Based on the Company’s credit rating at March 31, 2013, the applicable margin was 1.05%. Interest is payable (a) in the case of base rate loans, quarterly, and (b) in the case of LIBOR rate loans, on the maturity date of the borrowing, or quarterly from the effective date for borrowings exceeding three months. An annual Revolving Facility fee, also based on the Company’s credit rating, is currently 20 basis points and is payable quarterly.

The Credit Agreement contains affirmative and negative covenants that the Company believes are usual and customary for senior unsecured credit agreements, including a financial covenant requiring the maintenance of a 3.25 to 1.0 or lower leverage ratio, which is the ratio of the Company’s consolidated total debt to its consolidated EBITDA, each as defined in the Credit Agreement.

The Credit Agreement also contains customary events of default (subject to grace periods, as appropriate) including among others: nonpayment of principal, interest or fees; breach of the representations or warranties in any material respect; breach of the financial, affirmative or negative covenants; payment default on, or acceleration of, other material indebtedness; bankruptcy or insolvency; material judgments entered against the Company or any of its subsidiaries; certain specified events under the Employee Retirement Income Security Act of 1974, as amended; certain changes in control of the Company; and the invalidity or unenforceability of the Credit Agreement or other documents associated with the Credit Agreement.

At March 31, 2013, $61.0 million was outstanding under the Revolving Facility, with $7.8 million of outstanding letters of credit, resulting in net available borrowing capacity under the Revolving Facility at March 31, 2013 of approximately $631.2 million.

On June 9, 2010, the Company completed a private placement of €81.0 million ($96.8 million) aggregate principal amount of 2.58% Series 2010 Senior Euro Notes due June 9, 2015 (“2.58% Senior Euro Notes”) pursuant to a Master Note Purchase Agreement, dated June 9, 2010 (the “Purchase Agreement”). The Purchase Agreement provides for the issuance of additional series of notes in the future, provided that the aggregate principal amount outstanding under the agreement at any time does not exceed $750.0 million. The 2.58% Senior Euro Notes bear interest at a rate of 2.58% per annum, which is payable semi-annually in arrears on each June 9th and December 9th and will mature on June 9, 2015. The 2.58% Senior Euro Notes are unsecured obligations of the Company and rank pari passu in right of payment with all of the Company’s other senior debt. The Company may at any time prepay all or any portion of the 2.58% Senior Euro Notes; provided that any such portion is greater than 5% of the aggregate principal amount of Notes then outstanding under the Purchase Agreement. In the event of a prepayment, the Company would be required to pay an amount equal to par plus accrued interest plus a make-whole premium. The Purchase Agreement contains certain covenants that restrict the Company’s ability to, among other things, transfer or sell assets, create liens and engage in certain mergers or consolidations. In addition, the Company must comply with a leverage ratio and interest coverage ratio as set forth in the Purchase Agreement. The Purchase Agreement provides for customary events of default. In the case of an event of default arising from specified events of bankruptcy or insolvency, all outstanding 2.58% Senior Euro Notes will become due and payable immediately without further action or notice. In the case of payment events of defaults, any holder of the 2.58% Senior Euro Notes affected thereby may declare all the 2.58% Senior Euro Notes held by it due and payable immediately. In the case of any other event of default, a majority of the holders of the 2.58% Senior Euro Notes may declare all the 2.58% Senior Euro Notes to be due and payable immediately.

On December 6, 2010, the Company completed a public offering of $300.0 million 4.5% senior notes due December 15, 2020 (“4.5% Senior Notes”). The net proceeds from the offering of $295.7 million, after deducting a $1.6 million issuance discount, a $1.9 million underwriting commission and $0.8 million offering expenses,

15

IDEX CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (continued)

(unaudited)

were used to repay $250.0 million of outstanding bank indebtedness, with the balance used for general corporate purposes. The 4.5% Senior Notes bear interest at a rate of 4.5% per annum, which is payable semi-annually in arrears on each June 15th and December 15th. The Company may redeem all or a portion of the 4.5% Senior Notes at any time prior to maturity at the redemption prices set forth in the Note Indenture governing the 4.5% Senior Notes. The Company may issue additional debt from time to time pursuant to the Indenture. The Indenture and 4.5% Senior Notes contain covenants that limit the Company’s ability to, among other things, incur certain liens securing indebtedness, engage in certain sale-leaseback transactions, and enter into certain consolidations, mergers, conveyances, transfers or leases of all or substantially all the Company’s assets. The terms of the 4.5% Senior Notes also require the Company to make an offer to repurchase the 4.5% Senior Notes upon a change of control triggering event (as defined in the Indenture) at a price equal to 101% of their principal amount plus accrued and unpaid interest, if any.

On December 9, 2011, the Company completed a public offering of $350.0 million 4.2% senior notes due December 15, 2021 (“4.2% Senior Notes”). The net proceeds from the offering of $346.2 million, after deducting a $0.9 million issuance discount, a $2.3 million underwriting commission and $0.6 million offering expenses, were used to repay $306.0 million of outstanding bank indebtedness, with the balance used for general corporate purposes. The 4.2% Senior Notes bear interest at a rate of 4.2% per annum, which is payable semi-annually in arrears on each June 15th and December 15th. The Company may redeem all or a portion of the 4.2% Senior Notes at any time prior to maturity at the redemption prices set forth in the Note Indenture governing the 4.2% Senior Notes. The Company may issue additional debt from time to time pursuant to the Indenture. The Indenture and 4.2% Senior Notes contain covenants that limit the Company’s ability to, among other things, incur certain liens securing indebtedness, engage in certain sale-leaseback transactions, and enter into certain consolidations, mergers, conveyances, transfers or leases of all or substantially all the Company’s assets. The terms of the 4.2% Senior Notes also require the Company to make an offer to repurchase the 4.2% Senior Notes upon a change of control triggering event (as defined in the Indenture) at a price equal to 101% of their principal amount plus accrued and unpaid interest, if any.

Other borrowings of $9.7 million at March 31, 2013 were comprised of capital leases, debt at international locations maintained for working capital purposes and international debt as a result of acquisitions. Interest is payable on the outstanding debt balances at the international locations at rates ranging from 0.4% to 1.4% per annum.

There are two key financial covenants that the Company is required to maintain in connection with the Revolving Facility and 2.58% Senior Euro Notes. The most restrictive financial covenants under these debt instruments require a minimum interest coverage ratio of 3.0 to 1 and a maximum leverage ratio of 3.25 to 1. At March 31, 2013, the Company was in compliance with both of these financial covenants. There are no financial covenants relating to the 4.5% Senior Notes or 4.2% Senior Notes, other than cross-default provisions.

11.    Derivative Instruments

The Company enters into cash flow hedges to reduce the exposure to variability in certain expected future cash flows. The type of cash flow hedges the Company enters into includes foreign currency contracts and interest rate exchange agreements that effectively convert a portion of floating-rate debt to fixed-rate debt and are designed to reduce the impact of interest rate changes on future interest expense.

The effective portion of gains or losses on interest rate exchange agreements is reported in accumulated other comprehensive income (loss) in shareholders’ equity and reclassified into net income in the same period or periods in which the hedged transaction affects net income. The remaining gain or loss in excess of the cumulative change in the present value of future cash flows or the hedged item, if any, is recognized into net income during the period of change.

16

IDEX CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (continued)

(unaudited)

Fair values relating to derivative financial instruments reflect the estimated amounts that the Company would receive or pay to sell or buy the contracts based on quoted market prices of comparable contracts at each balance sheet date.

On April 15, 2010, the Company entered into a forward starting interest rate contract with a notional amount of $300.0 million with a settlement date in December 2010. This contract was entered into in anticipation of the issuance of the 4.5% Senior Notes and was designed to lock in the market interest rate as of April 15, 2010. In December 2010, the Company settled and paid this interest rate contract for $31.0 million. The $31.0 million is being amortized into interest expense over the 10 year term of the 4.5% Senior Notes, which results in an effective interest rate of 5.8%.

On July 12, 2011, the Company entered into a forward starting interest rate contract with a notional amount of $350.0 million and a settlement date of September 30, 2011. This contract was entered into in anticipation of the issuance of the 4.2% Senior Notes and was designed to lock in the market interest rate as of July 12, 2011. On September 29, 2011, the Company settled this interest rate contract for $34.7 million with a payment made on October 3, 2011. Simultaneously, the Company entered into a separate interest rate contract with a notional amount of $350.0 million and a settlement date of February 28, 2012. The contract was entered into in anticipation of the expected issuance of the 4.2% Senior Notes and was designed to maintain the market rate as of July 12, 2011. In December 2011, the Company settled and paid the September interest rate contract for $4.0 million, resulting in a total settlement of $38.7 million. Of the $38.7 million, $0.8 million was recognized as other expense in 2011 and the balance of $37.9 million is being amortized into interest expense over the 10 year term of the 4.2% Senior Notes, which results in an effective interest rate of 5.3%.

As of March 31, 2013, the Company did not have any interest rate contracts outstanding.

The following table summarizes the loss reclassified into income for interest rate contracts for March 31, 2013 and 2012:

	Three Months Ended March 31,
	2013		2012
Interest rate agreements	$	1,872	$	1,925

Approximately $7.4 million of the pre-tax amount included in accumulated other comprehensive income (loss) in shareholders’ equity at March 31, 2013 will be recognized to net income over the next 12 months as the underlying hedged transactions are realized.

12.    Fair Value Measurements

ASC 820 “Fair Value Measurements and Disclosures” defines fair value, provides guidance for measuring fair value and requires certain disclosures. This standard discusses valuation techniques, such as the market approach (comparable market prices), the income approach (present value of future income or cash flow), and the cost approach (cost to replace the service capacity of an asset or replacement cost). The standard utilizes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The following is a brief description of those three levels:

• Level 1: Observable inputs such as quoted prices (unadjusted) in active markets for identical assets or liabilities.

• Level 2: Inputs, other than quoted prices that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active.

17

IDEX CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (continued)

(unaudited)

• Level 3: Unobservable inputs that reflect the reporting entity’s own assumptions.

The following table summarizes the basis used to measure the Company’s financial assets and (liabilities) at fair value on a recurring basis in the balance sheet at March 31, 2013 and December 31, 2012:

	Basis of Fair Value Measurements
	Balance at March 31,  2013			Level 1		Level 2		Level 3
	(In thousands)
Money market investment	$	18,324		$	18,324	$	—	$	—
Available for sale securities		2,789			2,789		—		—
Contingent consideration		(8,644	)		—		—		(8,644	)

	Basis of Fair Value Measurements
	Balance at December 31, 2012			Level 1		Level 2		Level 3
	(In thousands)
Money market investment	$	11,165		$	11,165	$	—	$	—
Available for sale securities		2,862			2,862		—		—
Contingent consideration		(9,043	)		—		—		(9,043	)

There were no transfers of assets or liabilities between Level 1 and Level 2 during the first three months of 2013 or 2012.

In determining the fair value of the contingent consideration potentially due on the acquisition of Matcon, the Company used probability weighted estimates adjusted for the time value of money. The Matcon contingent consideration liability is valued at $8.6 million, of which $8.4 million was recorded as part of the purchase price as of the opening balance sheet date. At March 31, 2013, the $8.6 million of contingent consideration is included in Accrued expenses in the Consolidated Balance Sheet.

The carrying value of our cash and cash equivalents, accounts receivable, accounts payable and accrued expenses approximates their fair values because of the short term nature of these instruments. At March 31, 2013, the fair value of our Revolving Facility, 2.58% Senior Euro Notes, 4.5% Senior Notes and 4.2% Senior Notes, based on quoted market prices and current market rates for debt with similar credit risk and maturity, was approximately $858.4 million compared to the carrying value of $812.6 million. This fair value measurement is classified as Level 2 within the fair value hierarchy since it is determined based upon significant inputs observable in the market, including interest rates on recent financing transactions to entities with a credit rating similar to ours.

13.    Other Comprehensive Income (Loss)

The components of other comprehensive income (loss) are as follows:

	Three months ended March 31, 2013									Three months ended March 31, 2012
	Pre-tax			Tax			Net of tax			Pre-tax		Tax			Net of tax
	(In thousands)
Cumulative translation adjustment	$	(27,253	)	$	—		$	(27,253	)	$	15,031	$	—		$	15,031
Pension and other postretirement adjustments		1,935			(662	)		1,273			1,747		(624	)		1,123
Reclassification adjustments for derivatives		1,872			(682	)		1,190			1,925		(704	)		1,221
Total other comprehensive income (loss)	$	(23,446	)	$	(1,344	)		(24,790	)		18,703		(1,328	)		17,375

18

IDEX CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (continued)

(unaudited)

The following table summarizes the amounts reclassified from accumulated other comprehensive income (loss) to net income (loss) during the three months ended March 31, 2013 and 2012:

	Three months ended March  31,
	2013			2012			Income Statement Caption
	(In thousands)
Pension and other postretirement plans:
Amortization of service cost	$	1,935		$	1,747		Selling general and administrative expense
Total before tax		1,935			1,747
Provision for income taxes		(662	)		(624	)
Total net of tax	$	1,273		$	1,123
Derivatives:
Reclassification adjustments	$	1,872		$	1,925		Interest expense
Total before tax		1,872			1,925
Provision for income taxes		(682	)		(704	)
Total net of tax	$	1,190		$	1,221

14.    Common and Preferred Stock

On October 22, 2012, the Company’s Board of Directors approved a $200.0 million increase in the authorized level for repurchases of common stock. Repurchases under the program will be funded with future cash flow generation or cash available under the revolving facility. During the first quarter of 2013, the Company purchased a total of 0.7 million shares at a cost of $35.7 million, of which $2.6 million was settled in April 2013. During the first quarter of 2012, the Company purchased 0.2 million shares at a cost of $10.2 million.

At March 31, 2013 and December 31, 2012, the Company had 150 million shares of authorized common stock, with a par value of $.01 per share, and five million shares of authorized preferred stock, with a par value of $.01 per share. No preferred stock was outstanding at March 31, 2013 and December 31, 2012.

15.    Share-Based Compensation

During the three months ended March 31, 2013, the Company granted approximately 0.6 million stock options and 0.2 million unvested shares, respectively. During the three months ended March 31, 2012, the Company granted approximately 0.7 million stock options and 0.2 million unvested shares, respectively.

Beginning in 2013, the Company provides performance share units to selected key employees that may be earned based on IDEX total shareholder return over the three-year period following the date of grant. Performance share units (referred to as “TSR awards”) are expected to be made annually and are paid out at the end of a three-year period based on the Company’s performance. Performance is measured by determining the percentile rank of the total shareholder return of IDEX common stock in relation to the total shareholder return of the S&P Midcap 400 Industrial Group for the three-year period following the date of grant. The payment of awards following the three-year award period will be based on performance achieved in accordance with the scale set forth in the plan agreement and may range from 0 percent to 200 percent of the initial grant. A target payout of 100 percent is earned if total shareholder return is equal to the 50^th percentile of the S&P Midcap 400 Industrial Group. Performance share units earn dividend equivalents for the award period, which will be paid to

19

IDEX CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (continued)

(unaudited)

participants with the award payout at the end of the period based on the actual number of performance share units that are earned. Any payments made at the end of the award period will be in the form of stock. During the three months ended March 31, 2013, the Company granted approximately 0.1 million performance share units.

The fair value of each option grant was estimated on the date of grant using the Black-Scholes option pricing model. The performance share units are market condition awards and have been assessed at fair value on the date of grant using a Monte Carlo simulation model.

Weighted average option fair values and assumptions for the periods specified are disclosed in the following table:

	Three Months Ended March 31,
	2013	2012
Weighted average fair value of option grants	$ 12.85	$ 11.47
Dividend yield	1.57%	1.57%
Volatility	30.94%	32.01%
Risk-free forward interest rate	0.17%-4.10%	0.17%-3.98%
Expected life (in years)	5.87	5.98

Weighted average performance share unit fair values and assumptions for the period specified are disclosed in the following table:

	Three Months Ended March 31, 2013
Weighted average fair value of performance share units	$50.45
Dividend yield	0.00%
Volatility	28.99%
Risk-free forward interest rate	0.40%
Expected life (in years)	2.87

The Company’s policy is to recognize compensation cost on a straight-line basis over the requisite service period for the entire award. Additionally, the Company’s general policy is to issue newly issued shares of common stock to satisfy stock option exercises, grants of unvested shares and vesting of performance share units.

Total compensation cost for the stock options is as follows:

	Three Months Ended March 31,
	2013			2012
	(in thousands)
Cost of goods sold	$	192		$	293
Selling, general and administrative expenses		2,169			1,966
Total expense before income taxes		2,361			2,259
Income tax benefit		(737	)		(708	)
Total expense after income taxes	$	1,624		$	1,551

20

IDEX CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (continued)

(unaudited)

Total compensation cost for unvested shares is as follows:

	Three Months Ended March 31,
	2013			2012
	(in thousands)
Cost of goods sold	$	402		$	406
Selling, general and administrative expenses		2,660			1,996
Total expense before income taxes		3,062			2,402
Income tax benefit		(715	)		(663	)
Total expense after income taxes	$	2,347		$	1,739

Total compensation cost for performance share units is as follows:

	Three Months Ended March  31, 2013
	(in thousands)
Cost of goods sold	$	—
Selling, general and administrative expenses		189
Total expense before income taxes		189
Income tax benefit		(37	)
Total expense after income taxes	$	152

Classification of stock compensation cost within the Consolidated Statements of Operations is consistent with classification of cash compensation for the same employees.

As of March 31, 2013, there was $12.4 million of total unrecognized compensation cost related to stock options that is expected to be recognized over a weighted-average period of 1.6 years, $15.6 million of total unrecognized compensation cost related to unvested shares that is expected to be recognized over a weighted-average period of 1.3 years, and $2.3 million of total unrecognized compensation cost related to performance share units that is expected to be recognized over a weighted-average period of 1.5 years.

A summary of the Company’s stock option activity as of March 31, 2013, and changes during the quarter ended March 31, 2013 is presented in the following table:

Stock Options	Shares			Weighted Average Price		Weighted-Average Remaining Contractual Term		Aggregate Intrinsic Value
Outstanding at January 1, 2013		3,223,742		$	33.16		6.37	$	43,106,153
Granted		617,715			50.26
Exercised		(386,937	)		27.87
Forfeited/Expired		(52,575	)		42.01
Outstanding at March 31, 2013		3,401,945		$	36.73		7.00	$	56,781,822
Vested and expected to vest at March 31, 2013		2,987,418		$	36.33		6.85	$	51,055,880
Exercisable at March 31, 2013		1,913,459		$	30.63		5.47	$	43,606,478

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IDEX CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS — (continued)

(unaudited)

16.    Retirement Benefits

The Company sponsors several qualified and nonqualified defined benefit and defined contribution pension plans and other postretirement plans for its employees. The following tables provide the components of net periodic benefit cost for its major defined benefit plans and its other postretirement plans.

	Pension Benefits
	Three Months Ended March 31,
	2013						2012
	U.S.			Non-U.S.			U.S.			Non-U.S.
	(In thousands)
Service cost	$	437		$	339		$	486		$	342
Interest cost		943			519			1,092			557
Expected return on plan assets		(1,353	)		(256	)		(1,211	)		(257	)
Net amortization		1,614			230			1,591			83
Net periodic benefit cost	$	1,641		$	832		$	1,958		$	725

	Other Postretirement Benefits
	Three Months Ended March 31,
	2013		2012
Service cost	$	242	$	190
Interest cost		227		229
Net amortization		6		(37	)
Net periodic benefit cost	$	475	$	382

The Company previously disclosed in its financial statements for the year ended December 31, 2012, that it expected to contribute approximately $7.0 million to its defined benefit plans and $0.9 million to its other postretirement benefit plans in 2013. As of March 31, 2013, $1.9 million of contributions have been made to the defined benefit plans and $0.2 million has been made to its other postretirement benefit plans. The Company presently anticipates contributing up to an additional $5.8 million in 2013 to fund these plans.

17.    Legal Proceedings

The Company is party to various legal proceedings arising in the ordinary course of business, none of which are expected to have a material impact on its business, financial condition, results of operations or cash flows.

18.    Income Taxes

The Company’s provision for income taxes is based upon estimated annual tax rates for the year applied to federal, state and foreign income. The provision for income taxes increased to $24.1 million in the first quarter of 2013 from $21.9 million in the first quarter of 2012. The effective tax rate decreased to 28.2% for the first quarter of 2013 compared to 29.5% in the first quarter of 2012 primarily due to the enactment of the American Taxpayer Relief Act of 2012 on January 2, 2013, which reinstated the U.S. R&D credit retroactively to January 1, 2012, as well as the mix of global pre-tax income among jurisdictions.

The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction, and various state and foreign jurisdictions. Due to the potential for resolution of federal, state and foreign examinations, and the expiration of various statutes of limitation, it is reasonably possible that the Company’s gross unrecognized tax benefits balance may change within the next twelve months by a range of zero to $2.7 million.

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Item 2.    Management’s Discussion and Analysis of Financial Condition and Results of Operations.

Cautionary Statement Under the Private Securities Litigation Reform Act

The “Overview and Outlook” and the “Liquidity and Capital Resources” sections of this management’s discussion and analysis of financial condition and results of operations contain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These statements relate to, among other things, operating results and are indicated by words or phrases such as “expects,” “should,” “will,” and similar words or phrases. These statements are subject to inherent uncertainties and risks that could cause actual results to differ materially from those statements. The risks and uncertainties include, but are not limited to, those risks and uncertainties identified under the heading “Risk Factors” in item 1A of the Company’s Annual Report on Form 10-K for the year ended December 31, 2012, and information contained in subsequent reports filed by IDEX with the Securities and Exchange Commission. Investors are cautioned not to rely unduly on forward-looking statements when evaluating the information presented here.

Overview and Outlook

IDEX is an applied solutions company specializing in fluid and metering technologies, health and science technologies, and fire, safety and other diversified products built to customers’ specifications. IDEX’s products are sold in niche markets to a wide range of industries throughout the world. Accordingly, its businesses are affected by levels of industrial activity and economic conditions in the U.S. and in other countries where IDEX does business and by the relationship of the U.S. dollar to other currencies. Levels of capacity utilization and capital spending in certain industries and overall industrial activity are among the factors that influence the demand for IDEX’s products.

The Company has three reportable business segments: Fluid & Metering Technologies, Health & Science Technologies and Fire & Safety/Diversified Products. Within these three reportable segments, the Company maintains six platforms, where we will invest in organic growth and acquisitions with a strategic view towards a platform with the potential for at least $500 million in revenue, and eight groups, where we will focus on organic growth and strategic acquisitions. The Fluid & Metering Technologies segment is comprised of the Energy, Diaphragm & Dosing Pump Technology, and Chemical, Food & Process platforms as well as the Water Services & Technology and Agricultural groups. The Health & Science Technologies segment is comprised of the IDEX Optics & Photonics, Scientific Fluidics and Materials Process Technologies platforms, as well as the Sealing Solutions and the Industrial groups. The Fire & Safety/Diversified Products segment is comprised of the Dispensing, Rescue, Band-It, and Fire Suppression groups.

The Fluid & Metering Technologies segment designs, produces and distributes positive displacement pumps, flow meters, injectors, and other fluid-handling pump modules and systems and provides flow monitoring and other services for the food, chemical, general industrial, water and wastewater, agricultural and energy industries.

The Health & Science Technologies segment designs, produces and distributes a wide range of precision fluidics, rotary lobe pumps, centrifugal and positive displacement pumps, roll compaction and drying systems used in beverage, food processing, pharmaceutical and cosmetics, pneumatic components and sealing solutions, including very high precision, low-flow rate pumping solutions required in analytical instrumentation, clinical diagnostics and drug discovery, high performance molded and extruded, biocompatible medical devices and implantables, air compressors used in medical, dental and industrial applications, optical components and coatings for applications in the fields of scientific research, defense, biotechnology, aerospace, telecommunications and electronics manufacturing, laboratory and commercial equipment used in the production of micro and nano scale materials, precision photonic solutions used in life sciences, research and defense markets, and precision gear and peristaltic pump technologies that meet exacting original equipment manufacturer specifications.

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The Fire & Safety/Diversified Products segment produces firefighting pumps and controls, rescue tools, lifting bags and other components and systems for the fire and rescue industry, and engineered stainless steel banding and clamping devices used in a variety of industrial and commercial applications, precision equipment for dispensing, metering and mixing colorants and paints used in a variety of retail and commercial businesses around the world.

Some of our key financial highlights for the three months ended March 31, 2013 are as follows:

• Sales of $494.4 million rose 1%; organic sales — excluding acquisitions and foreign currency translation — were down 1%.

• Operating income of $94.7 million increased 12%.

• Net income increased 17% to $61.3 million.

• Diluted EPS of $0.74 increased 12 cents.

On a regional basis, North America is improving, Europe remains soft and Asia is uneven. Based on the Company’s current outlook, we are forecasting second quarter EPS of $0.73 to $0.75 and full year EPS of $2.85 to $2.95.

Results of Operations

The following is a discussion and analysis of our results of operations for the three month periods ended March 31, 2013 and 2012. Segment operating income excludes unallocated corporate operating expenses.

In this report, references to organic sales, a non-GAAP measure, refers to sales from continuing operations calculated according to generally accepted accounting principles in the United States but excludes (1) sales from acquired businesses during the first twelve months of ownership and (2) the impact of foreign currency translation. The portion of sales attributable to foreign currency translation is calculated as the difference between (a) the period-to-period change in organic sales and (b) the period-to-period change in organic sales after applying prior period foreign exchange rates to the current year period. Management believes that reporting organic sales provides useful information to investors by helping identify underlying growth trends in our business and facilitating easier comparisons of our revenue performance with prior and future periods and to our peers. The Company excludes the effect of foreign currency translation from organic sales because foreign currency translation is not under management’s control, is subject to volatility and can obscure underlying business trends. The Company excludes the effect of acquisitions because the nature, size, and number of acquisitions can vary dramatically from period to period and between the Company and its peers and can also obscure underlying business trends and make comparisons of long-term performance difficult.

Management’s primary measurements of segment performance are sales, operating income, and operating margin. In addition, due to the highly acquisitive nature of the Company, the determination of operating income includes amortization of acquired intangible assets and, as a result, management reviews depreciation and amortization as a percentage of sales. These measures are monitored by management and significant changes in operating results versus current trends in end markets and variances from forecasts are analyzed with segment management.

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Consolidated Results

	Three Months Ended March 31,
(in thousands)	2013			2012
Net sales	$	494,448		$	489,417
Operating income		94,712			84,569
Operating margin		19.2	%		17.3	%
Depreciation and amortization	$	19,839		$	19,190
Depreciation and amortization as a percentage of net sales		4.0	%		3.9	%

Sales in the three months ended March 31, 2013 were $494.4 million, a 1% increase from the comparable period last year. This increase reflects a 1% decrease in organic sales and a 2% increase from acquisitions (ERC — April 2012 and Matcon — July 2012). International sales represented approximately 52% of total sales in both periods.

For the first quarter of 2013, Fluid & Metering Technologies contributed 43% of sales and 44% of operating income; Health & Science Technologies accounted for 35% of sales and 30% of operating income; and Fire & Safety/Diversified Products represented 22% of sales and 26% of operating income.

Gross profit of $212.0 million in the first quarter of 2013 increased $9.1 million, or 4%, from 2012. Gross profit as a percent of sales, or gross margin, was 42.9% in the first quarter of 2013 and 41.5% in 2012. The increase in gross margin primarily resulted from an increase in volume and benefits from the Company’s structural cost actions taken in prior years.

Selling, general and administrative (“SG&A”) expenses increased to $117.3 million in the first quarter of 2013 from $113.4 million in 2012. The change reflects an increase of approximately $3.4 million for incremental costs from new acquisitions and an increase in volume related expenses of $0.5 million. As a percentage of sales, SG&A expenses were 23.7% for the first quarter of 2013 and 23.2% for 2012.

During the three months ended March 31, 2012, the Company recorded pre-tax restructuring expenses totaling $4.9 million. These restructuring expenses were mainly attributable to employee severance related to employee reductions across various functional areas and facility rationalization resulting from the Company’s cost savings initiatives.

Operating income of $94.7 million in the first quarter of 2013 was up from the $84.6 million recorded in 2012, primarily reflecting an increase in volume, improved productivity and restructuring-related charges recorded in 2012. Operating income as a percent of sales, or operating margin, of 19.2% in the first quarter of 2013 was up from 17.3% in 2012, primarily due to productivity, benefits from the Company’s structural cost actions taken in prior years and expenses from restructuring-related charges in 2012.

Other income, net of $1.3 million in the first quarter of 2013 was up $1.1 million compared with a $0.1 million recorded in 2012, primarily due to higher gains on foreign currency transactions.

Interest expense of $10.6 million in the first quarter of 2013 was down slightly compared to the $10.7 million recorded in 2012.

The provision for income taxes is based upon estimated annual tax rates for the year applied to federal, state and foreign income. The provision for income taxes of $24.1 million in the first quarter of 2013 increased compared to $21.9 recorded in the first quarter of 2012. The effective tax rate decreased to 28.2% for the first quarter of 2013 compared to 29.5% in the first quarter of 2012 primarily due to the enactment of the American Taxpayer Relief Act of 2012 on January 2, 2013, which reinstated the U.S. R&D credit retroactively to January 1, 2012, as well as the mix of global pre-tax income among jurisdictions.

Net income in the first quarter of 2013 of $61.3 million increased from $52.2 million in 2012. Diluted earnings per share in the first quarter of 2013 of $0.74 increased $0.12, or 19%, compared with 2012.

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Fluid & Metering Technologies Segment

	Three Months Ended March 31,
(in thousands)	2013			2012
Net sales	$	211,755		$	212,718
Operating income		48,079			44,526
Operating margin		22.7	%		20.9	%
Depreciation and amortization	$	6,960		$	7,540
Depreciation and amortization as a percentage of net sales		3.3	%		3.5	%

Sales of $211.8 million decreased $1.0 million, or 1%, in the first quarter of 2013 compared with 2012. This reflects a 1% decrease in organic sales. In the first quarter of 2013, organic sales increased 1% domestically and decreased 3% internationally. Organic sales to customers outside the U.S. were approximately 45% of total segment sales during the first quarter of 2013, compared with 47% in 2012.

Sales within our Energy platform decreased slightly in the first quarter of 2013 compared to 2012, due to weak demand for small meters on mobile applications and softness in hardware, partially offset by a rebound in the aviation market. Sales within our Chemical Food & Process platform decreased compared to the first quarter of 2012 on weak general industrial demand, partially offset by strength in the chemical markets, particularly with project opportunities in the Middle East and Asia. Sales within our Agriculture group increased due to higher demand in North America, partially offset by a challenging spring weather pattern. Diaphragm & Dosing Pump Technology sales decreased compared to the first quarter of 2012 due to general market softness across core markets. Offsetting the sales decreases above was a sales increase in our Water Services & Technology group, which experienced stabilization in the municipal water end markets.

Operating income and operating margin of $48.1 million and 22.7%, respectively, were higher than the $44.5 million and 20.9% recorded in the first quarter of 2012, primarily due to $2.7 million of restructuring charges recorded in 2012 and the impact of our cost reduction initiatives.

Health & Science Technologies Segment

	Three Months Ended March 31,
(in thousands)	2013			2012
Net sales	$	172,868		$	173,786
Operating income		32,267			30,270
Operating margin		18.7	%		17.4	%
Depreciation and amortization	$	10,792		$	9,461
Depreciation and amortization as a percentage of net sales		6.2	%		5.4	%

Sales of $172.9 million decreased $0.9 million, or 1%, in the first quarter of 2013 compared with 2012. This reflects a 7% decrease in organic sales and 1% unfavorable foreign currency translation, partially offset by 7% growth from acquisitions (Matcon and ERC). In the first quarter of 2013, organic sales decreased 4% domestically and 9% internationally. Organic sales to customers outside the U.S. were approximately 53% of total segment sales in the first quarter of 2013, compared with 52% in 2012.

Sales within our Materials Process Technologies platform increased compared to the first quarter of 2012 due to a full three months of sales from Matcon, acquired in July 2012. This was partially offset by normalized volume in the first quarter of 2013, as large project orders shipped in the first quarter of 2012. Sales within our Scientific Fluidics platform were up compared to the first quarter of 2012 due to strength in Asia. Sales within IDEX Sealing Solutions platform decreased slightly compared to the first quarter of 2012 due to weak semiconductor sales. Sales within our Optics and Photonics platform decreased compared to the first quarter of 2012 due to weakness within the semiconductor, life science and defense markets. Sales within our Industrial group decreased compared to the first quarter of 2012 due to weakness in Europe.

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Operating income of $32.3 million in the first quarter of 2013 was up from the $30.3 million recorded in 2012, primarily due to cost savings from our prior period restructuring actions and $1.5 million of restructuring charges recorded in 2012. Operating margin of 18.7% in the first quarter of 2013 was up from 17.4% in 2012, primarily due to productivity and cost reduction initiatives.

Fire & Safety/Diversified Products Segment

	Three Months Ended March 31,
(in thousands)	2013			2012
Net sales	$	111,513		$	104,050
Operating income		28,232			23,688
Operating margin		25.3	%		22.8	%
Depreciation and amortization	$	1,708		$	1,779
Depreciation and amortization as a percentage of net sales		1.5	%		1.7	%

Sales of $111.5 million increased $7.5 million, or 7%, in the first quarter of 2013 compared with 2012. This reflects 7% organic growth. In the first quarter of 2013, organic sales increased 9% domestically and 6% internationally. Organic sales to customers outside the U.S. were approximately 58% of total segment sales in the first quarter of 2013, compared with 60% in 2012.

Sales within our Dispensing group increased as a result of strong project based business and demand in the Asian markets. The sales increase within our Band-It group was driven by general North American strength and product innovation. Sales within our Fire Suppression group increased as a result of a strong Asian project funnel and steady North American markets, partially offset by weakness in Europe. Sales within our Rescue group increased as a result of higher demand for our rescue tools within emerging markets, partially offset by weak demand in Europe.

Operating income and operating margin of $28.2 million and 25.3%, respectively, were higher than the $23.7  million and 22.8% recorded in the first quarter of 2012, primarily due to higher volume and improved productivity.

Liquidity and Capital Resources

At March 31, 2013, working capital was $638.3 million and the current ratio was 3.3 to 1. Cash flows from operating activities for the first three months of 2013 increased $13.5 million, or 23%, to $72.2 million compared to 2012 mainly due to higher earnings.

Cash flows provided by operating activities were more than adequate to fund capital expenditures of $7.6 million and $8.5 million in the first three months of 2013 and 2012, respectively. Capital expenditures were generally for machinery and equipment that improved productivity, tooling, business system technology and replacement of equipment and facilities. Management believes that the Company has sufficient capacity in its plants and equipment to meet expected needs for future growth.

The Company maintains the Revolving Facility, which is a $700.0 million unsecured, multi-currency bank credit facility expiring on June 27, 2016. At March 31, 2013, there were $61.0 million outstanding borrowings under the Revolving Facility and outstanding letters of credit totaled approximately $7.8 million. The net available borrowing capacity under the Revolving Facility at March 31, 2013, was approximately $631.2 million. Borrowings under the Revolving Facility bear interest at either an alternate base rate or an adjusted LIBOR rate plus, in each case, an applicable margin. Such applicable margin is based on the Company’s senior, unsecured long-term debt rating and can range from .875% to 1.70%. Based on the Company’s credit rating at March 31, 2013, the applicable margin was 1.05%. Interest is payable (a) in the case of base rate loans, quarterly, and (b) in the case of LIBOR rate loans, on the maturity date of the borrowing, or quarterly from the effective date for borrowings exceeding three months. An annual Revolving Facility fee, also based on the Company’s credit rating, is currently 20 basis points and is payable quarterly.

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On June 9, 2010, the Company completed a private placement of €81.0 million ($96.8 million) aggregate principal amount of 2.58% Series 2010 Senior Euro Notes due June 9, 2015 (“2.58% Senior Euro Notes”) pursuant to a Master Note Purchase Agreement, dated June 9, 2010 (the “Purchase Agreement”). The Purchase Agreement provides for the issuance of additional series of notes in the future, provided that the aggregate principal amount outstanding under the agreement at any time does not exceed $750.0 million. The 2.58% Senior Euro Notes bear interest at a rate of 2.58% per annum, which is payable semi-annually in arrears on each June 9th and December 9th and will mature on June 9, 2015. The 2.58% Senior Euro Notes are unsecured obligations of the Company and rank pari passu in right of payment with all of the Company’s other senior debt. The Company may at any time prepay all or any portion of the 2.58% Senior Euro Notes; provided that any such portion is greater than 5% of the aggregate principal amount of Notes then outstanding under the Purchase Agreement. In the event of a prepayment, the Company would be required to pay an amount equal to par plus accrued interest plus a make-whole premium. The Purchase Agreement contains certain covenants that restrict the Company’s ability to, among other things, transfer or sell assets, create liens and engage in certain mergers or consolidations. In addition, the Company must comply with a leverage ratio and interest coverage ratio as set forth in the Purchase Agreement. The Purchase Agreement provides for customary events of default. In the case of an event of default arising from specified events of bankruptcy or insolvency, all outstanding 2.58% Senior Euro Notes will become due and payable immediately without further action or notice. In the case of payment events of defaults, any holder of the 2.58% Senior Euro Notes affected thereby may declare all the 2.58% Senior Euro Notes held by it due and payable immediately. In the case of any other event of default, a majority of the holders of the 2.58% Senior Euro Notes may declare all the 2.58% Senior Euro Notes to be due and payable immediately.

On December 6, 2010, the Company completed a public offering of $300.0 million 4.5% senior notes due December 15, 2020 (“4.5% Senior Notes”). The net proceeds from the offering of $295.7 million, after deducting a $1.6 million issuance discount, a $1.9 million underwriting commission and $0.8 million offering expenses, were used to repay $250.0 million of outstanding bank indebtedness, with the balance used for general corporate purposes. The 4.5% Senior Notes bear interest at a rate of 4.5% per annum, which is payable semi-annually in arrears on each June 15th and December 15th. The Company may redeem all or a portion of the 4.5% Senior Notes at any time prior to maturity at the redemption prices set forth in the Note Indenture governing the 4.5% Senior Notes. The Company may issue additional debt from time to time pursuant to the Indenture. The Indenture and 4.5% Senior Notes contain covenants that limit the Company’s ability to, among other things, incur certain liens securing indebtedness, engage in certain sale-leaseback transactions, and enter into certain consolidations, mergers, conveyances, transfers or leases of all or substantially all the Company’s assets. The terms of the 4.5% Senior Notes also require the Company to make an offer to repurchase the 4.5% Senior Notes upon a change of control triggering event (as defined in the Indenture) at a price equal to 101% of their principal amount plus accrued and unpaid interest, if any.

On December 9, 2011, the Company completed a public offering of $350.0 million 4.2% senior notes due December 15, 2021 (“4.2% Senior Notes”). The net proceeds from the offering of $346.2 million, after deducting a $0.9 million issuance discount, a $2.3 million underwriting commission and $0.6 million offering expenses, were used to repay $306.0 million of outstanding bank indebtedness, with the balance used for general corporate purposes. The 4.2% Senior Notes bear interest at a rate of 4.2% per annum, which is payable semi-annually in arrears on each June 15th and December 15th. The Company may redeem all or a portion of the 4.2% Senior Notes at any time prior to maturity at the redemption prices set forth in the Note Indenture governing the 4.2% Senior Notes. The Company may issue additional debt from time to time pursuant to the Indenture. The Indenture and 4.2% Senior Notes contain covenants that limit the Company’s ability to, among other things, incur certain liens securing indebtedness, engage in certain sale-leaseback transactions, and enter into certain consolidations, mergers, conveyances, transfers or leases of all or substantially all the Company’s assets. The terms of the 4.2% Senior Notes also require the Company to make an offer to repurchase the 4.2% Senior Notes upon a change of control triggering event (as defined in the Indenture) at a price equal to 101% of their principal amount plus accrued and unpaid interest, if any.

On April 15, 2010, the Company entered into a forward starting interest rate contract with a notional amount of $300.0 million with a settlement date in December 2010. This contract was entered into in anticipation of the issuance of the 4.5% Senior Notes and was designed to lock in the market interest rate as of April 15, 2010. In

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December 2010, the Company settled and paid this interest rate contract for $31.0 million. The $31.0 million is being amortized into interest expense over the 10 year term of the 4.5% Senior Notes, which results in an effective interest rate of 5.8%.

On July 12, 2011, the Company entered into a forward starting interest rate contract with a notional amount of $350.0 million and a settlement date of September 30, 2011. This contract was entered into in anticipation of the issuance of the 4.2% Senior Notes and was designed to lock in the market interest rate as of July 12, 2011. On September 29, 2011, the Company settled this interest rate contract for $34.7 million with a payment made on October 3, 2011. Simultaneously, the Company entered into a separate interest rate contract with a notional amount of $350.0 million and a settlement date of February 28, 2012. The contract was entered into in anticipation of the expected issuance of the 4.2% Senior Notes and was designed to maintain the market rate as of July 12, 2011. In December 2011, the Company settled and paid the September interest rate contract for $4.0 million, resulting in a total settlement of $38.7 million. Of the $38.7 million, $0.8 was recognized as other expense in 2011 and the balance of $37.9 million is being amortized into interest expense over the 10 year term of the 4.2% Senior Notes, which results in an effective interest rate of 5.3%.

There are two key financial covenants that the Company is required to maintain in connection with the Revolving Facility and 2.58% Senior Euro Notes. The most restrictive financial covenants under these debt instruments require a minimum interest coverage ratio of 3.0 to 1 and a maximum leverage ratio of 3.25 to 1. At March 31, 2013, the Company was in compliance with both of these financial covenants, as the Company’s interest coverage ratio was 10.6 to 1 and the leverage ratio was 1.9 to 1. There are no financial covenants relating to the 4.5% Senior Notes or 4.2% Senior Notes, other than cross-default provisions.

On October 22, 2012, the Company’s Board of Directors approved a $200.0 million increase in the authorized level for repurchases of common stock. Repurchases under the program will be funded with future cash flow generation or cash available under the revolving facility. During the first quarter of 2013, the Company purchased a total of 0.7 million shares at a cost of $35.7 million, of which $2.6 million was settled in April 2013.

The Company believes current cash, cash from operations and cash available under the revolving facility will be sufficient to meet its operating cash requirements, planned capital expenditures, interest on all borrowings, pension and postretirement funding requirements, authorized share repurchases and annual dividend payments to holders of the Company’s stock for the remainder of 2013 and 2014. Additionally, in the event that suitable businesses are available for acquisition upon acceptable terms, the Company may obtain all or a portion of the financing for these acquisitions through the incurrence of additional borrowings. As of March 31, 2013, $61.0 million is outstanding under the Revolving Facility.

Item 3.    Quantitative and Qualitative Disclosures About Market Risk.

The Company is subject to market risk associated with changes in foreign currency exchange rates and interest rates. The Company may, from time to time, enter into foreign currency forward contracts and interest rate swaps on its debt when it believes there is a financial advantage in doing so. A treasury risk management policy, adopted by the Board of Directors, describes the procedures and controls over derivative financial and commodity instruments, including foreign currency forward contracts and interest rate swaps. Under the policy, the Company does not use derivative financial or commodity instruments for trading purposes, and the use of these instruments is subject to strict approvals by senior officers. Typically, the use of derivative instruments is limited to foreign currency forward contracts and interest rate swaps on the Company’s outstanding long-term debt.

The Company’s foreign currency exchange rate risk is limited principally to the Euro, British Pound, Canadian Dollar and Chinese Renminbi. The Company manages its foreign exchange risk principally through invoicing customers in the same currency as the source of products. The effect of transaction gains and losses is reported within other income (expense)-net on the Consolidated Statements of Operations.

The Company’s interest rate exposure is primarily related to the $822.3 million of total debt outstanding at March 31, 2013. Approximately 9% of the debt is priced at interest rates that float with the market. A 50 basis

29

point movement in the interest rate on the floating rate debt would result in an approximate $0.4 million annualized increase or decrease in interest expense and cash flows. The remaining debt is fixed rate debt.

Item 4.    Controls and Procedures.

The Company maintains disclosure controls and procedures that are designed to ensure that information required to be disclosed in the Company’s Exchange Act reports is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to the Company’s management, including its Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.

As required by Rule 13a-15(b) promulgated under the Securities Exchange Act, the Company carried out an evaluation, under the supervision and with the participation of the Company’s management, including the Company’s Chief Executive Officer and the Company’s Chief Financial Officer, of the effectiveness of the design and operation of the Company’s disclosure controls and procedures as of the end of the period covered by this report. Based on the foregoing, the Company’s Chief Executive Officer and Chief Financial Officer concluded as of March 31, 2013, that the Company’s disclosure controls and procedures were effective.

There has been no change in the Company’s internal controls over financial reporting during the Company’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the Company’s internal controls over financial reporting.

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PART II. OTHER INFORMATION

Item 1.    Legal Proceedings.

The Company and six of its subsidiaries are presently named as defendants in a number of lawsuits claiming various asbestos-related personal injuries, allegedly as a result of exposure to products manufactured with components that contained asbestos. These components were acquired from third party suppliers, and were not manufactured by any of the subsidiaries. To date, the majority of the Company’s settlements and legal costs, except for costs of coordination, administration, insurance investigation and a portion of defense costs, have been covered in full by insurance, subject to applicable deductibles. However, the Company cannot predict whether and to what extent insurance will be available to continue to cover these settlements and legal costs, or how insurers may respond to claims that are tendered to them. Claims have been filed in jurisdictions throughout the United States. Most of the claims resolved to date have been dismissed without payment. The balance have been settled for various insignificant amounts. Only one case has been tried, resulting in a verdict for the Company’s business unit. No provision has been made in the financial statements of the Company, other than for insurance deductibles in the ordinary course, and the Company does not currently believe the asbestos-related claims will have a material adverse effect on the Company’s business, financial position, results of operations or cash flows.

The Company is also party to various other legal proceedings arising in the ordinary course of business, none of which is expected to have a material adverse effect on its business, financial condition, results of operations or cash flows.

Item 2.    Unregistered Sales of Equity Securities and Use of Proceeds.

The following table provides information about the Company’s purchases of its common stock during the quarter ended March 31, 2013:

Period	Total Number of Shares Purchased		Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs(1)		Maximum Dollar Value that May Yet be Purchased Under the Plans or Programs(1)
January 1, 2013 to January 31, 2013		240,015	$	48.37		240,015	$	223,828,188
February 1, 2013 to February 28, 2013		143,771	$	49.94		143,771	$	216,660,214
March 1, 2013 to March 31, 2013		322,705	$	52.27		322,705	$	199,784,346
Total		706,491	$	50.09		706,491	$	199,784,346

(1) On October 22, 2012, the Company announced that its Board of Directors had increased the authorized level for repurchases of its common stock by approximately $200.0 million.

Item 6.    Exhibits.

The exhibits listed in the accompanying “Exhibit Index” are filed or furnished as part of this report.

31

SIGNATURES

Pursuant to the requirements 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.

IDEX Corporation
By:	/S/    HEATH A. MITTS
	Heath A. Mitts
	Vice President and Chief Financial Officer (Principal Financial Officer)
By:	/S/    MICHAEL J. YATES
	Michael J. Yates
	Vice President and Chief Accounting Officer (Principal Accounting Officer)

Date: May 3, 2013

32

EXHIBIT INDEX

Exhibit Number	Description
3.1	Restated Certificate of Incorporation of IDEX Corporation (incorporated by reference to Exhibit No. 3.1 to the Registration Statement on Form S-1 of IDEX, et al., Registration No. 33-21205, as filed on April 21, 1988)
3.1(a)	Amendment to Restated Certificate of Incorporation of IDEX Corporation (incorporated by reference to Exhibit No. 3.1(a) to the Quarterly Report of IDEX on Form 10-Q for the quarter ended March 31, 1996, Commission File No. 1-10235)
3.1(b)	Amendment to Restated Certificate of Incorporation of IDEX Corporation (incorporated by reference to Exhibit No. 3.1(b) to the Current Report of IDEX on Form 8-K dated March 24, 2005, Commission File No. 1-10235)
3.2	Amended and Restated By-Laws of IDEX Corporation (incorporated by reference to Exhibit No. 3.1 to the Current Report of IDEX Corporation on form 8-K filed November 14, 2011, Commission File No. 1-10235)
31.1	Certification of Chief Executive Officer Pursuant to Section 302 of Sarbanes Oxley Act of 2002
31.2	Certification of Chief Financial Officer Pursuant to Section 302 of Sarbanes Oxley Act of 2002
32.1	Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350
32.2	Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350
101	The following financial information from IDEX Corporation’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2013, formatted in XBRL includes: (i) the Condensed Consolidated Balance Sheets, (ii) the Condensed Consolidated Statements of Earnings, (iii) the Condensed Consolidated Statements of Comprehensive Income, (iv) the Condensed Consolidated Statement of Shareholders’ Equity, (v) the Condensed Consolidated Statements of Cash Flows, and (vi) Notes to the Condensed Consolidated Financial Statements.

33

EX-31.1

Exhibit 31.1

Certification of Chief Executive Officer Pursuant to Section 302 of the

Sarbanes-Oxley Act of 2002

I, Andrew K. Silvernail, certify that:

1. I have reviewed this quarterly report on Form 10-Q of IDEX Corporation;

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 we 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.

/s/  ANDREW K. SILVERNAIL

Andrew K. Silvernail

Chairman of the Board, President and Chief Executive Officer

Date: May 3, 2013

EX-31.2

Exhibit 31.2

Certification of Chief Financial Officer Pursuant to Section 302 of the

Sarbanes-Oxley Act of 2002

I, Heath A. Mitts, certify that:

1. I have reviewed this quarterly report on Form 10-Q of IDEX Corporation;

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 we 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.

/s/  HEATH A. MITTS

Heath A. Mitts

Vice President and Chief Financial Officer

Date: May 3, 2013

EX-32.1

Exhibit 32.1

Certification of Chief Executive Officer

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of IDEX Corporation (the “Company”) hereby certifies, to such officer’s knowledge, that:

(i) the accompanying Quarterly Report on Form 10-Q of the Company for the quarterly period ended March 31, 2013 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

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

/s/  ANDREW K. SILVERNAIL

Andrew K. Silvernail

Chairman of the Board, President and Chief Executive Officer

Date: May 3, 2013

EX-32.2

Exhibit 32.2

Certification of Chief Financial Officer

Pursuant to 18 U.S.C. § 1350, as created by Section 906 of the Sarbanes-Oxley Act of 2002, the undersigned officer of IDEX Corporation (the “Company”) hereby certifies, to such officer’s knowledge, that:

(i) the accompanying Quarterly Report on Form 10-Q of the Company for the quarterly period ended March 31, 2013 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

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

/s/  HEATH A. MITTS

Heath A. Mitts

Vice President and Chief Financial Officer

Date: May 3, 2013

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Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2013

Components of Other Comprehensive Income Loss

The components of other comprehensive income (loss) are as follows:

	Three months ended March 31, 2013									Three months ended March 31, 2012
	Pre-tax			Tax			Net of tax			Pre-tax		Tax			Net of tax
	(In thousands)
Cumulative translation adjustment	$	(27,253	)	$	—		$	(27,253	)	$	15,031	$	—		$	15,031
Pension and other postretirement adjustments		1,935			(662	)		1,273			1,747		(624	)		1,123
Reclassification adjustments for derivatives		1,872			(682	)		1,190			1,925		(704	)		1,221
Total other comprehensive income (loss)	$	(23,446	)	$	(1,344	)		(24,790	)		18,703		(1,328	)		17,375

Reclassifications out of Accumulated Other Comprehensive Income Loss

The following table summarizes the amounts reclassified from accumulated other comprehensive income (loss) to net income (loss) during the three months ended March 31, 2013 and 2012:

	Three months ended March  31,
	2013			2012			Income Statement Caption
	(In thousands)
Pension and other postretirement plans:
Amortization of service cost	$	1,935		$	1,747		Selling general and administrative expense
Total before tax		1,935			1,747
Provision for income taxes		(662	)		(624	)
Total net of tax	$	1,273		$	1,123
Derivatives:
Reclassification adjustments	$	1,872		$	1,925		Interest expense
Total before tax		1,872			1,925
Provision for income taxes		(682	)		(704	)
Total net of tax	$	1,190		$	1,221

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Schedule of Gross Carrying Value and Accumulated Amortization for Each Major Class of Intangible Asset (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 436,190	$ 429,063
Intangible assets - Gross Carrying Amount	498,290	491,163
Amortized intangible assets - Accumulated Amortization	(158,649)	(149,791)
Amortized intangible assets - Net	277,541	279,272
Intangible assets - Net	339,641	341,372
Patents
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	10,526	10,650
Amortized intangible assets - Accumulated Amortization	(4,361)	(4,273)
Amortized intangible assets - Net	6,165	6,377
Amortized intangible assets - Weighted Average Life	11 years
Trade Names
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	102,907	103,113
Amortized intangible assets - Accumulated Amortization	(22,999)	(21,603)
Amortized intangible assets - Net	79,908	81,510
Amortized intangible assets - Weighted Average Life	16 years
Customer Relationships
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	237,937	230,196
Amortized intangible assets - Accumulated Amortization	(98,582)	(93,273)
Amortized intangible assets - Net	139,355	136,923
Amortized intangible assets - Weighted Average Life	10 years
Non-Compete Agreements
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	3,697	3,505
Amortized intangible assets - Accumulated Amortization	(2,965)	(2,827)
Amortized intangible assets - Net	732	678
Amortized intangible assets - Weighted Average Life	3 years
Unpatented technology
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	74,291	74,758
Amortized intangible assets - Accumulated Amortization	(25,967)	(24,211)
Amortized intangible assets - Net	48,324	50,547
Amortized intangible assets - Weighted Average Life	11 years
Other
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	6,832	6,841
Amortized intangible assets - Accumulated Amortization	(3,775)	(3,604)
Amortized intangible assets - Net	3,057	3,237
Amortized intangible assets - Weighted Average Life	10 years
Banjo Trade Name
Goodwill And Intangible Assets [Line Items]
Indefinite lived intangible assets - Gross Carrying Amount	62,100	62,100
Indefinite lived intangible assets - Net	$ 62,100	$ 62,100

XML

Business Segments - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2013 Segment
Segment Reporting Information [Line Items]
Number of reportable business segments	3

XML

Stock Options Activity (Detail) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Shares
Outstanding at January 1, 2013	3,223,742
Granted	617,715
Exercised	(386,937)
Forfeited/Expired	(52,575)
Outstanding at March 31, 2013	3,401,945	3,223,742
Vested and expected to vest at March 31, 2013	2,987,418
Exercisable at March 31, 2013	1,913,459
Weighted Average Price
Stock Options Outstanding, Weighted Average Price, Beginning	$ 33.16
Granted, Weighted Average Price	$ 50.26
Exercised, Weighted Average Price	$ 27.87
Forfeited/Expired, Weighted Average Price	$ 42.01
Stock Options Outstanding, Weighted Average Price, Ending	$ 36.73	$ 33.16
Vested and expected to vest at March 31, 2013, Weighted Average Price	$ 36.33
Exercisable at March 31, 2013, Weighted Average Price	$ 30.63
Weighted-Average Remaining Contractual Term
Weighted-Average Remaining Contractual Term, Ending	7 years	6 years 4 months 13 days
Weighted-Average Remaining Contractual Term, Vested and expected to vest at March 31, 2013	6 years 10 months 6 days
Weighted-Average Remaining Contractual Term, Exercisable at March 31, 2013	5 years 5 months 9 days
Stock options outstanding, Beginning aggregate intrinsic value	$ 43,106,153
Stock options outstanding, Ending aggregate intrinsic value	56,781,822	43,106,153
Stock options, vested and expected to vest aggregate intrinsic value	51,055,880
Stock options, exercisable aggregate intrinsic value	$ 43,606,478

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Components of Accrued Expenses (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Schedule of Accrued Liabilities [Line Items]
Payroll and related items	$ 48,445	$ 55,618
Management incentive compensation	5,299	15,974
Income taxes payable	22,896	10,284
Deferred income taxes	386
Insurance	9,445	8,974
Warranty	4,816	4,875
Deferred revenue	11,765	9,682
Restructuring	4,205	10,887
Liability for uncertain tax positions	2,685	2,679
Accrued interest	9,428	1,713
Contingent consideration for acquisition	8,644	3,528
Other	26,456	25,962
Total accrued expenses	$ 154,470	$ 150,176

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Allocation of Acquisition Costs to Assets Acquired and Liabilities Assumed (Detail) (FTL Seals Technology, Ltd, USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Mar. 18, 2013
FTL Seals Technology, Ltd
Schedule of Business Acquisitions, Cost of Acquired Entity [Line Items]
Accounts receivable	$ 3,446
Inventory	4,524
Other current assets, net of cash acquired	133
Property, plant and equipment	1,384
Goodwill	18,084	18,100
Intangible assets	13,016
Total assets acquired	40,587
Total liabilities assumed	(5,939)
Net assets acquired	$ 34,648

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Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Changes in Carrying Amount of Goodwill

The changes in the carrying amount of goodwill for the three months ended March 31, 2013, by reportable business segment, were as follows:

(In thousands)	Fluid & Metering Technologies			Health & Science Technologies			Fire &  Safety/ Diversified Products			Total
Balance at December 31, 2012	$	524,325		$	553,204		$	244,198		$	1,321,727
Foreign currency translation		(3,362	)		(5,854	)		(4,656	)		(13,872	)
Acquisitions		—			18,084			—			18,084
Balance at March 31, 2013	$	520,963		$	565,434		$	239,542		$	1,325,939

Schedule of Gross Carrying Value and Accumulated Amortization For Each Major Class of Intangible Asset

The following table provides the gross carrying value and accumulated amortization for each major class of intangible asset at March 31, 2013 and December 31, 2012:

	At March 31, 2013									At December 31, 2012
	Gross Carrying Amount		Accumulated Amortization			Net		Weighted Average Life		Gross Carrying Amount		Accumulated Amortization			Net
	(In thousands)									(In thousands)
Amortized intangible assets:
Patents	$	10,526	$	(4,361	)	$	6,165		11	$	10,650	$	(4,273	)	$	6,377
Trade names		102,907		(22,999	)		79,908		16		103,113		(21,603	)		81,510
Customer relationships		237,937		(98,582	)		139,355		10		230,196		(93,273	)		136,923
Non-compete agreements		3,697		(2,965	)		732		3		3,505		(2,827	)		678
Unpatented technology		74,291		(25,967	)		48,324		11		74,758		(24,211	)		50,547
Other		6,832		(3,775	)		3,057		10		6,841		(3,604	)		3,237
Total amortized intangible assets		436,190		(158,649	)		277,541				429,063		(149,791	)		279,272
Unamortized intangible asset:
Banjo trade name		62,100		—			62,100				62,100		—			62,100
Total intangible assets	$	498,290	$	(158,649	)	$	339,641			$	491,163	$	(149,791	)	$	341,372

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Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Income Tax Disclosure [Line Items]
Provision for income taxes	$ 24,134,000	$ 21,853,000
Effective tax rate	28.20%	29.50%
Reasonably possible change in unrecognized tax benefits over next 12 months, lower range	0
Reasonably possible change in unrecognized tax benefits over next 12 months, upper range	$ 2,700,000

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Schedule of Borrowings (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Long-term borrowings	$ 822,338	$ 786,576
Less current portion	6,776	7,335
Total long-term borrowings	815,562	779,241
4.2% Senior Notes
Debt Instrument [Line Items]
Long-term borrowings	349,216	349,197
4.5 % Senior Notes
Debt Instrument [Line Items]
Long-term borrowings	298,723	298,689
2.58% Senior Euro Notes
Debt Instrument [Line Items]
Long-term borrowings	103,664	107,042
Revolving Credit Facility
Debt Instrument [Line Items]
Revolving Facility	61,000	21,000
Other Borrowings
Debt Instrument [Line Items]
Other borrowings	$ 9,735	$ 10,648

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Components of Net Periodic Benefit Cost for Defined Benefit Plans and Other Postretirement Plans (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
U.S.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ 437	$ 486
Interest cost	943	1,092
Expected return on plan assets	(1,353)	(1,211)
Net amortization	1,614	1,591
Net periodic benefit cost	1,641	1,958
Non-U.S.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	339	342
Interest cost	519	557
Expected return on plan assets	(256)	(257)
Net amortization	230	83
Net periodic benefit cost	832	725
Other Postretirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	242	190
Interest cost	227	229
Net amortization	6	(37)
Net periodic benefit cost	$ 475	$ 382

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Legal Proceedings

3 Months Ended

Mar. 31, 2013

Legal Proceedings

17.    Legal Proceedings

The Company is party to various legal proceedings arising in the ordinary course of business, none of which are expected to have a material impact on its business, financial condition, results of operations or cash flows.

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Earnings Per Common Share - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
(Increase) decrease in income attributable to common shareholders	$ (0.3)	$ (0.2)
Option to purchase common stock shares not included in the computation of diluted EPS	0.6	1.3

XML

Restructuring - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring expenses related to restructuring initiative		$ 4,938
Restructuring liabilities	4,205		10,887
2011 restructuring initiative
Restructuring Cost and Reserve [Line Items]
Pre-tax restructuring expenses related to restructuring initiative		$ 4,900
Number of employees	337
Expected Severance payments period	9 months

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Derivative Instruments (Tables)

3 Months Ended

Mar. 31, 2013

Summary of Loss Reclassified into Income for Interest Rate Contracts

The following table summarizes the loss reclassified into income for interest rate contracts for March 31, 2013 and 2012:

	Three Months Ended March 31,
	2013		2012
Interest rate agreements	$	1,872	$	1,925

XML

Components of Inventories (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Inventory Disclosure [Line Items]
Raw materials and component parts	$ 136,868	$ 139,229
Work-in-process	36,915	33,025
Finished goods	65,792	62,696
Total	$ 239,575	$ 234,950

XML

Share Based Compensation - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted	0.6	0.7
Shares granted	0.2	0.2
Period of payment of award	3 years
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payment of award, percentage	0.00%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payment of award, percentage	200.00%
Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost	12.4
Weighted-average period of total unrecognized compensation cost, in years	1 year 7 months 6 days
Unvested Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total unrecognized compensation cost	15.6
Weighted-average period of total unrecognized compensation cost, in years	1 year 3 months 18 days
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	0.1
Total unrecognized compensation cost	2.3
Weighted-average period of total unrecognized compensation cost, in years	1 year 6 months

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Summary of Gain or Loss Recognized and Amounts and Location of Income or Expense and Gain or Loss Reclassified into Income for Interest Rate Contracts and Foreign Currency Contracts (Detail) (Interest rate agreements, Interest Expense, USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Interest rate agreements | Interest Expense
Derivative [Line Items]
Interest rate agreements	$ 1,872	$ 1,925

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Acquired Intangible Assets and Weighted Average Amortization Periods (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Acquired Finite-Lived Intangible Assets [Line Items]
Total	$ 13,016
Trade Names
Acquired Finite-Lived Intangible Assets [Line Items]
Total	1,005
Weighted Average Life	15 years
Non-Compete Agreements
Acquired Finite-Lived Intangible Assets [Line Items]
Total	224
Weighted Average Life	3 years
Customer Relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Total	10,950
Weighted Average Life	9 years
Unpatented technology
Acquired Finite-Lived Intangible Assets [Line Items]
Total	$ 837
Weighted Average Life	8 years

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Basis of Presentation and Significant Accounting Policies

3 Months Ended

Mar. 31, 2013

Basis of Presentation and Significant Accounting Policies

1.    Basis of Presentation and Significant Accounting Policies

The condensed consolidated financial statements of IDEX Corporation (“IDEX” or the “Company”) have been prepared in accordance with the instructions to Form 10-Q under the Securities Exchange Act of 1934, as amended. The statements are unaudited but include all adjustments, consisting only of recurring items, except as noted, that the Company considers necessary for a fair presentation of the information set forth herein. The results of operations for the three months ended March 31, 2013 are not necessarily indicative of the results to be expected for the entire year.

The condensed consolidated financial statements and management’s discussion and analysis of financial condition and results of Operations should be read in conjunction with the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2012.

Adoption of New Accounting Standards

In February 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2013-02 which requires additional disclosures regarding the reporting of reclassifications out of accumulated other comprehensive income. ASU 2013-02 requires an entity to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period. This guidance is effective for reporting periods beginning after December 15, 2012. The Company adopted this guidance effective January 1, 2013 and its adoption did not impact the consolidated financial position, results of operations or cash flows of the Company. See Note 13 for a further discussion on other comprehensive income (loss).

New Accounting Pronouncements

In July 2012, the FASB issued ASU 2012-02, “Intangibles — Goodwill and Other (Topic 350): Testing Indefinite-Lived Intangible Assets for Impairment” which allows an entity to first assess qualitative factors to determine whether it is necessary to perform a quantitative impairment test of an indefinite-lived intangible asset. Under ASU 2012-02, an entity would not be required to calculate the fair value of an indefinite-lived intangible asset if the entity determines, based on qualitative assessment, that it is not more likely than not impaired. The revised standard is effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012. As of March 31, 2013, the Company did not apply ASU 2012-02, however the Company does not expect ASU 2012-02 to have a material impact on the consolidated financial position, results of operations or cash flows of the Company.

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Schedule of Company Financial Assets and Liabilities at Fair Value on Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Money market investment	$ 18,324	$ 11,165
Available for sale securities	2,789	2,862
Contingent consideration	(8,644)	(9,043)
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Money market investment	18,324	11,165
Available for sale securities	2,789	2,862
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Contingent consideration	$ (8,644)	$ (9,043)

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Schedule of Pre-Tax Restructuring Expenses by Segment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Restructuring Cost and Reserve [Line Items]
Severance Costs		$ 3,890
Exit Costs		1,048
Total		4,938
Fluid & Metering Technologies
Restructuring Cost and Reserve [Line Items]
Severance Costs		2,659
Total		2,659
Health & Science Technologies
Restructuring Cost and Reserve [Line Items]
Severance Costs		1,150
Exit Costs		305
Total		1,455
Fire & Safety/Diversified Products
Restructuring Cost and Reserve [Line Items]
Exit Costs		544
Total		544
Corporate Office/Other
Restructuring Cost and Reserve [Line Items]
Severance Costs		81
Exit Costs		199
Total		$ 280

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Acquisitions (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Allocation of Acquisition Costs To Assets Acquired and Liabilities Assumed

The allocation of the acquisition costs to the assets acquired and liabilities assumed, based on their estimated fair values, is as follows:

(In thousands)
Accounts receivable	$	3,446
Inventory		4,524
Other current assets, net of cash acquired		133
Property, plant and equipment		1,384
Goodwill		18,084
Intangible assets		13,016
Total assets acquired		40,587
Total liabilities assumed		(5,939	)
Net assets acquired	$	34,648

Acquired Intangible Assets and Weighted Average Amortization Periods

The acquired intangible assets and weighted average amortization periods are as follows:

(In thousands)	Total		Weighted Average Life
Trade names	$	1,005		15
Non-compete agreements		224		3
Customer relationships		10,950		9
Unpatented technology		837		8
2013 acquired intangible assets	$	13,016

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Restructuring (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Pre-Tax Restructuring Expenses By Segment

Pre-tax restructuring expenses, by segment, for the quarter ended March 31, 2012, were as follows:

	Severance Costs		Exit Costs		Total
	(In thousands)
Fluid & Metering Technologies	$	2,659	$	—	$	2,659
Health & Science Technologies		1,150		305		1,455
Fire & Safety/Diversified Products		—		544		544
Corporate/Other		81		199		280
Total restructuring costs	$	3,890	$	1,048	$	4,938

Schedule of Restructuring Accruals Expenses

Restructuring accruals of $4.2 million and $10.9 million at March 31, 2013 and December 31, 2012, respectively, are reflected in Accrued expenses in the Consolidated Balance Sheets as follows:

(In thousands)
Balance at January 1, 2013	$	10,887
Restructuring expenses		—
Payments/utilization		(6,682	)
Balance at March 31, 2013	$	4,205

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Components of Noncurrent Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Schedule of Other Liabilities [Line Items]
Pension and retiree medical obligations	$ 95,061	$ 96,853
Liability for uncertain tax positions	5,014	4,989
Deferred revenue	6,811	6,534
Contingent consideration for acquisition		5,515
Other	13,866	14,484
Total other noncurrent liabilities	$ 120,752	$ 128,375

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Schedule of Restructuring Accruals Expenses (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 10,887
Restructuring expenses		(4,938)
Payments/utilization	(6,682)
Ending Balance	$ 4,205

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Business Segments (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Information On Company's Business Segments

Information on the Company’s business segments is presented below, based on the nature of products and services offered. The Company evaluates performance based on several factors, of which operating income is the primary financial measure. Intersegment sales are accounted for at fair value as if the sales were to third parties.

	Three Months Ended March 31,
	2013			2012
	(In thousands)
Net sales:
Fluid & Metering Technologies:
External customers	$	211,407		$	212,466
Intersegment sales		348			252
Total group sales		211,755			212,718
Health & Science Technologies:
External customers		171,674			173,221
Intersegment sales		1,194			565
Total group sales		172,868			173,786
Fire & Safety/Diversified Products:
External customers		111,367			103,730
Intersegment sales		146			320
Total group sales		111,513			104,050
Intersegment elimination		(1,688	)		(1,137	)
Total net sales	$	494,448		$	489,417
Operating income and income before income taxes:
Fluid & Metering Technologies	$	48,079		$	44,526
Health & Science Technologies		32,267			30,270
Fire & Safety/Diversified Products		28,232			23,688
Corporate office and other		(13,866	)		(13,915	)
Total operating income		94,712			84,569
Interest expense		10,557			10,662
Other income-net		1,279			117
Income before income taxes	$	85,434		$	74,024

	March 31, 2013		December 31, 2012
	(In thousands)
Assets:
Fluid & Metering Technologies	$	1,033,752	$	1,023,143
Health & Science Technologies		1,123,755		1,102,868
Fire & Safety/Diversified Products		494,258		488,886
Corporate office and other(1)		170,835		170,493
Total assets	$	2,822,600	$	2,785,390

(1) Includes intersegment eliminations.

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Earnings Per Common Share (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Basic Weighted Average Shares Reconciles to Diluted Weighted Average Shares

Basic weighted average shares reconciles to diluted weighted average shares as follows:

	Three Months Ended March 31,
	2013		2012
	(In thousands)
Basic weighted average common shares outstanding		82,197		82,804
Dilutive effect of stock options, unvested shares, and DCUs		955		1,098
Diluted weighted average common shares outstanding		83,152		83,902

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Cash flows from operating activities
Net income	$ 61,300	$ 52,171
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,948	9,238
Amortization of intangible assets	10,891	9,952
Amortization of debt issuance expenses	425	369
Share-based compensation expense	5,612	4,661
Deferred income taxes	(117)	74
Excess tax benefit from share based compensation	(2,439)	(2,118)
Non-cash interest expense associated with forward starting swaps	1,872	1,925
Changes in:
Receivables	(14,843)	(15,450)
Inventories	(3,115)	(212)
Other current assets	(3,513)	(7,144)
Trade accounts payable	6,303	4,217
Accrued expenses	1,043	2,837
Other - net	(172)	(1,778)
Net cash flows provided by operating activities	72,195	58,742
Cash flows from investing activities
Cash purchases of property, plant and equipment	(7,625)	(8,515)
Acquisition of businesses, net of cash acquired	(34,648)
Other - net	(57)	(40)
Net cash flows used in investing activities	(42,330)	(8,555)
Cash flows from financing activities
Borrowings under revolving facilities for acquisitions	34,648
Borrowings under revolving facilities	5,438	9,509
Payments under revolving facilities	(305)	(48,009)
Dividends paid	(16,575)	(14,161)
Proceeds from stock option exercises	10,758	24,366
Excess tax benefit from stock-based compensation	2,439	2,118
Purchase of common stock	(33,115)	(10,183)
Unvested shares surrendered for tax withholding	(1,735)	(2,118)
Other		(1,343)
Net cash flows provided by (used in) financing activities	1,553	(39,821)
Effect of exchange rate changes on cash and cash equivalents	(9,237)	4,918
Net increase in cash	22,181	15,284
Cash and cash equivalents at beginning of year	318,864	230,259
Cash and cash equivalents at end of period	341,045	245,543
Cash paid for:
Interest	545	2,537
Income taxes, net	$ 7,002	$ 9,292

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Inventories (Tables)

3 Months Ended

Mar. 31, 2013

Components Of Inventories

The components of inventories as of March 31, 2013 and December 31, 2012 were:

	March 31, 2013		December  31, 2012
	(In thousands)
Raw materials and component parts	$	136,868	$	139,229
Work-in-process		36,915		33,025
Finished goods		65,792		62,696
Total	$	239,575	$	234,950

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Share-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Weighted Average Option Fair Values and Assumptions

Weighted average option fair values and assumptions for the periods specified are disclosed in the following table:

	Three Months Ended March 31,
	2013	2012
Weighted average fair value of option grants	$ 12.85	$ 11.47
Dividend yield	1.57%	1.57%
Volatility	30.94%	32.01%
Risk-free forward interest rate	0.17%-4.10%	0.17%-3.98%
Expected life (in years)	5.87	5.98

Schedule of Stock Option Activity

A summary of the Company’s stock option activity as of March 31, 2013, and changes during the quarter ended March 31, 2013 is presented in the following table:

Stock Options	Shares			Weighted Average Price		Weighted-Average Remaining Contractual Term		Aggregate Intrinsic Value
Outstanding at January 1, 2013		3,223,742		$	33.16		6.37	$	43,106,153
Granted		617,715			50.26
Exercised		(386,937	)		27.87
Forfeited/Expired		(52,575	)		42.01
Outstanding at March 31, 2013		3,401,945		$	36.73		7.00	$	56,781,822
Vested and expected to vest at March 31, 2013		2,987,418		$	36.33		6.85	$	51,055,880
Exercisable at March 31, 2013		1,913,459		$	30.63		5.47	$	43,606,478

Stock Option

Schedule of Compensation Cost for Stock Options and Unvested Shares and Performance Share Units

Total compensation cost for the stock options is as follows:

	Three Months Ended March 31,
	2013			2012
	(in thousands)
Cost of goods sold	$	192		$	293
Selling, general and administrative expenses		2,169			1,966
Total expense before income taxes		2,361			2,259
Income tax benefit		(737	)		(708	)
Total expense after income taxes	$	1,624		$	1,551

Unvested Shares

Schedule of Compensation Cost for Stock Options and Unvested Shares and Performance Share Units

Total compensation cost for unvested shares is as follows:

	Three Months Ended March 31,
	2013			2012
	(in thousands)
Cost of goods sold	$	402		$	406
Selling, general and administrative expenses		2,660			1,996
Total expense before income taxes		3,062			2,402
Income tax benefit		(715	)		(663	)
Total expense after income taxes	$	2,347		$	1,739

Performance Shares

Schedule of Weighted Average Option Fair Values and Assumptions

Weighted average performance share unit fair values and assumptions for the period specified are disclosed in the following table:

	Three Months Ended March 31, 2013
Weighted average fair value of performance share units	$50.45
Dividend yield	0.00%
Volatility	28.99%
Risk-free forward interest rate	0.40%
Expected life (in years)	2.87

Schedule of Compensation Cost for Stock Options and Unvested Shares and Performance Share Units

Total compensation cost for performance share units is as follows:

	Three Months Ended March  31, 2013
	(in thousands)
Cost of goods sold	$	—
Selling, general and administrative expenses		189
Total expense before income taxes		189
Income tax benefit		(37	)
Total expense after income taxes	$	152

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Schedule of Changes in Carrying Amount of Goodwill (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Goodwill and Intangible Assets Disclosure [Line Items]
Beginning Balance	$ 1,321,727
Foreign currency translation	(13,872)
Acquisitions	18,084
Ending Balance	1,325,939
Fluid & Metering Technologies
Goodwill and Intangible Assets Disclosure [Line Items]
Beginning Balance	524,325
Foreign currency translation	(3,362)
Ending Balance	520,963
Health & Science Technologies
Goodwill and Intangible Assets Disclosure [Line Items]
Beginning Balance	553,204
Foreign currency translation	(5,854)
Acquisitions	18,084
Ending Balance	565,434
Fire & Safety/Diversified Products
Goodwill and Intangible Assets Disclosure [Line Items]
Beginning Balance	244,198
Foreign currency translation	(4,656)
Ending Balance	$ 239,542

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Retirement Benefits - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Anticipated additional contribution for pension plans and other postretirement benefit plans in 2013	$ 5.8
Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Expected contribution for next fiscal year		7.0
Actual contributions	1.9
Other Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Expected contribution for next fiscal year		0.9
Actual contributions	$ 0.2

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CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current assets
Cash and cash equivalents	$ 341,045	$ 318,864
Receivables, less allowance for doubtful accounts of $5,758 March 31, 2013 and $5,596 at December 31, 2012	269,873	256,095
Inventories - net	239,575	234,950
Other current assets	71,425	71,956
Total current assets	921,918	881,865
Property, plant and equipment - net	215,091	219,161
Goodwill	1,325,939	1,321,727
Intangible assets - net	339,641	341,372
Other noncurrent assets	20,011	21,265
Total assets	2,822,600	2,785,390
Current liabilities
Trade accounts payable	122,376	117,341
Accrued expenses	154,470	150,176
Current portion of long-term debt and short-term borrowings	6,776	7,335
Dividends payable		16,575
Total current liabilities	283,622	291,427
Long-term borrowings	815,562	779,241
Deferred income taxes	121,017	121,349
Other noncurrent liabilities	120,752	128,375
Total liabilities	1,340,953	1,320,392
Commitments and contingencies
Preferred stock:
Authorized: 5,000,000 shares, $.01 per share par value; Issued: None
Common stock:
Authorized: 150,000,000 shares, $.01 per share par value Issued: 88,360,659 shares at March 31, 2013 and 87,732,405 shares at December 31, 2012	884	877
Additional paid-in capital	568,202	550,682
Retained earnings	1,174,841	1,113,541
Treasury stock at cost: 5,713,071 shares at March 31, 2013 and 5,005,518 shares at December 31, 2012	(194,087)	(156,699)
Accumulated other comprehensive loss	(68,193)	(43,403)
Total shareholders' equity	1,481,647	1,464,998
Total liabilities and shareholders' equity	$ 2,822,600	$ 2,785,390

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Acquisitions - Additional Information (Detail)	3 Months Ended		3 Months Ended				1 Months Ended		1 Months Ended
	Mar. 31, 2013 USD ($)	Dec. 31, 2012 USD ($)	Mar. 31, 2013 FTL Seals Technology, Ltd USD ($)	Mar. 31, 2013 FTL Seals Technology, Ltd GBP (£)	Mar. 18, 2013 FTL Seals Technology, Ltd USD ($)	Mar. 18, 2013 FTL Seals Technology, Ltd GBP (£)	Apr. 30, 2012 Precision Photonics Corporation USD ($)	Apr. 11, 2012 Precision Photonics Corporation USD ($)	Apr. 30, 2012 ERC USD ($)	Apr. 30, 2012 ERC JPY (¥)	Jul. 31, 2012 Matcon Group Limited USD ($)	Jul. 31, 2012 Matcon Group Limited GBP (£)	Mar. 31, 2013 Matcon Group Limited USD ($)	Jul. 20, 2012 Matcon Group Limited USD ($)	Jul. 20, 2012 Matcon Group Limited GBP (£)
Business Acquisition [Line Items]
Annual revenue of entity acquired			$ 22,500,000	£ 15,000,000			$ 7,000,000		$ 27,000,000	¥ 2,140,000,000
Aggregate purchase price					34,600,000	23,100,000		20,600,000	18,000,000	1,470,000,000				45,800,000	29,100,000
Acquisition cash payment made for funded from operation			34,600,000					20,600,000
Goodwill recognized in acquisition			18,084,000		18,100,000			13,900,000	8,500,000					28,000,000
Intangible assets recognized in acquisition					13,000,000			5,100,000	5,600,000					14,100,000
Goodwill not deductible for tax purpose					18,100,000			13,900,000	8,500,000					28,000,000
Acquisition-related transaction costs	1,100,000
Business acquisition, cash consideration paid									13,300,000					35,000,000
Business acquisition, assumption of debt			5,939,000						4,700,000
Acquired entity, approximate annual revenue											34,400,000	22,000,000
Business acquisition, working capital adjustments														2,400,000
Contingent consideration fair value	8,644,000	9,043,000											8,600,000	8,400,000
Business acquisition, minimum potential undiscounted amount of all future payments														3,800,000
Business acquisition, maximum potential undiscounted amount of all future payments														8,600,000
Business acquisition, amount financed with borrowings under the revolving facility														$ 15,000,000

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CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Thousands	Total	Common Stock and Additional Paid-In Capital	Retained Earnings	Cumulative Translation Adjustment	Retirement Benefits Adjustments	Cumulative Unrealized Loss on Derivatives	Treasury Stock
Balance at Dec. 31, 2012	$ 1,464,998	$ 551,559	$ 1,113,541	$ 38,639	$ (45,645)	$ (36,397)	$ (156,699)
Net income	61,300		61,300
Cumulative translation adjustment	(27,253)			(27,253)
Pension and other postretirement adjustments, net of tax	1,273				1,273
Amortization of forward starting swaps, net of tax	1,190					1,190
Issuance of 616,273 shares of common stock from issuance of unvested shares, exercise of stock options and deferred compensation plans, net of tax benefit	13,022	13,022
Repurchase of 706,491 shares of common stock	(35,653)						(35,653)
Unvested shares surrendered for tax withholding	(1,735)						(1,735)
Share-based compensation	4,505	4,505
Balance at Mar. 31, 2013	$ 1,481,647	$ 569,086	$ 1,174,841	$ 11,386	$ (44,372)	$ (35,207)	$ (194,087)

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Borrowings - Additional Information (Detail)	3 Months Ended	1 Months Ended		6 Months Ended		1 Months Ended			1 Months Ended	3 Months Ended						3 Months Ended					3 Months Ended
	Mar. 31, 2013 USD ($)	Jun. 30, 2010 2.58% Senior Euro Notes USD ($)	Jun. 30, 2010 2.58% Senior Euro Notes EUR (€)	Jun. 30, 2012 2.58% Senior Euro Notes	Jun. 09, 2010 2.58% Senior Euro Notes USD ($)	Dec. 31, 2010 4.5 % Senior Notes USD ($)	Dec. 06, 2010 4.5 % Senior Notes USD ($)	Apr. 15, 2010 4.5 % Senior Notes	Dec. 31, 2011 4.2% Senior Notes USD ($)	Mar. 31, 2013 4.2% Senior Notes	Dec. 09, 2011 4.2% Senior Notes USD ($)	Mar. 31, 2013 Other Borrowings USD ($)	Mar. 31, 2013 Minimum 2.58% Senior Euro Notes	Mar. 31, 2013 Minimum Other Borrowings	Mar. 31, 2013 Maximum Other Borrowings	Mar. 31, 2013 Letters Of Credit USD ($)	Mar. 31, 2013 Swing line Loans USD ($)	Mar. 31, 2013 Revolving Credit Facility USD ($)	Dec. 31, 2012 Revolving Credit Facility USD ($)	Mar. 31, 2013 Revolving Credit Facility Minimum	Mar. 31, 2013 Revolving Credit Facility Maximum
Line of Credit Facility [Line Items]
Replaced credit facility due to expire	$ 600,000,000
Revolving facility principal amount	700,000,000															75,000,000	25,000,000
Revolving facility expiration date	Jun. 27, 2016
Revolving facility closing date	Jun. 27, 2011
Aggregate commitments of designated borrowers under the Credit Facility	950,000,000
Applicable margin over LIBOR																		1.05%		0.875%	1.70%
Annual credit facility fee basis point rate spread over LIBOR	20
Leverage ratio																					3.25
Outstanding letters of credit																		7,800,000
Current borrowings under revolving facility																		61,000,000	21,000,000
Revolving Facility, amount available to borrow																		631,200,000
Principal amount of private placement		96,800,000	81,000,000						350,000,000
Stated interest rate					2.58%		4.50%	4.50%			4.20%			0.40%	1.40%
Debt instrument maturity period		Jun. 09, 2015	Jun. 09, 2015			Dec. 15, 2020			Dec. 15, 2021
Debt instrument maximum amount outstanding					750,000,000
Repayment, minimum percentage outstanding				5.00%
Debt instrument face amount							300,000,000
Net proceeds from debt offering							295,700,000				346,200,000
Debt offering initial discount							1,600,000				900,000
Debt offering underwriting commission						1,900,000			2,300,000
Estimated offering expenses						800,000			600,000
Contingent percentage of principal amount plus accrued and unpaid interest						101.00%				101.00%
Outstanding repayment of indebtedness						250,000,000			306,000,000
Other borrowings												$ 9,700,000
Interest coverage ratio													3.0

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Other Noncurrent Liabilities (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Other Noncurrent Liabilities

The components of noncurrent liabilities as of March 31, 2013 and December 31, 2012 were:

	March 31, 2013		December 31, 2012
	(In thousands)
Pension and retiree medical obligations	$	95,061	$	96,853
Liability for uncertain tax positions		5,014		4,989
Deferred revenue		6,811		6,534
Contingent consideration for acquisition .		—		5,515
Other		13,866		14,484
Total other noncurrent liabilities	$	120,752	$	128,375

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Reclassifications out of Accumulated Other Comprehensive Income Loss (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Amounts Reclassified From Accumulated Other Comprehensive Income (Loss) [Line Items]
Amortization of service cost	$ 1,935	$ 1,747
Total before tax	1,935	1,747
Provision for income taxes	(662)	(624)
Total net of tax	1,273	1,123
Reclassification adjustments	1,872	1,925
Total before tax	1,872	1,925
Provision for income taxes	(682)	(704)
Total net of tax	$ 1,190	$ 1,221

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Common and Preferred Stock

3 Months Ended

Mar. 31, 2013

Common and Preferred Stock

14.    Common and Preferred Stock

On October 22, 2012, the Company’s Board of Directors approved a $200.0 million increase in the authorized level for repurchases of common stock. Repurchases under the program will be funded with future cash flow generation or cash available under the revolving facility. During the first quarter of 2013, the Company purchased a total of 0.7 million shares at a cost of $35.7 million, of which $2.6 million was settled in April 2013. During the first quarter of 2012, the Company purchased 0.2 million shares at a cost of $10.2 million.

At March 31, 2013 and December 31, 2012, the Company had 150 million shares of authorized common stock, with a par value of $.01 per share, and five million shares of authorized preferred stock, with a par value of $.01 per share. No preferred stock was outstanding at March 31, 2013 and December 31, 2012.

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Borrowings (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Borrowings

Borrowings at March 31, 2013 and December 31, 2012 consisted of the following:

	March 31, 2013		December 31, 2012
	(In thousands)
Revolving credit facility	$	61,000	$	21,000
4.2% Senior Notes, due December 2021		349,216		349,197
4.5% Senior Notes, due December 2020		298,723		298,689
2.58% Senior Euro Notes, due June 2015		103,664		107,042
Other borrowings		9,735		10,648
Total borrowings		822,338		786,576
Less current portion		6,776		7,335
Total long-term borrowings	$	815,562	$	779,241

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Retirement Benefits

3 Months Ended

Mar. 31, 2013

Retirement Benefits

16.    Retirement Benefits

The Company sponsors several qualified and nonqualified defined benefit and defined contribution pension plans and other postretirement plans for its employees. The following tables provide the components of net periodic benefit cost for its major defined benefit plans and its other postretirement plans.

	Pension Benefits
	Three Months Ended March 31,
	2013						2012
	U.S.			Non-U.S.			U.S.			Non-U.S.
	(In thousands)
Service cost	$	437		$	339		$	486		$	342
Interest cost		943			519			1,092			557
Expected return on plan assets		(1,353	)		(256	)		(1,211	)		(257	)
Net amortization		1,614			230			1,591			83
Net periodic benefit cost	$	1,641		$	832		$	1,958		$	725

	Other Postretirement Benefits
	Three Months Ended March 31,
	2013		2012
Service cost	$	242	$	190
Interest cost		227		229
Net amortization		6		(37	)
Net periodic benefit cost	$	475	$	382

The Company previously disclosed in its financial statements for the year ended December 31, 2012, that it expected to contribute approximately $7.0 million to its defined benefit plans and $0.9 million to its other postretirement benefit plans in 2013. As of March 31, 2013, $1.9 million of contributions have been made to the defined benefit plans and $0.2 million has been made to its other postretirement benefit plans. The Company presently anticipates contributing up to an additional $5.8 million in 2013 to fund these plans.

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Schedule of Weighted Average Option, Performance Share Fair Values and Assumptions (Detail) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Schedule of Weighted Average Assumptions for Fair Values of Stock Options[Line Items]
Weighted average fair value of option grants	$ 12.85	$ 11.47
Dividend yield	1.57%	1.57%
Volatility	30.94%	32.01%
Expected life (in years)	5 years 10 months 13 days	5 years 11 months 23 days
Performance Shares
Schedule of Weighted Average Assumptions for Fair Values of Stock Options[Line Items]
Weighted average fair value of option grants	$ 50.45
Dividend yield	0.00%
Volatility	28.99%
Risk-free forward interest rate	0.40%
Expected life (in years)	2 years 10 months 13 days
Minimum
Schedule of Weighted Average Assumptions for Fair Values of Stock Options[Line Items]
Risk-free forward interest rate	0.17%	0.17%
Maximum
Schedule of Weighted Average Assumptions for Fair Values of Stock Options[Line Items]
Risk-free forward interest rate	4.10%	3.98%

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CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013
Pension and other postretirement adjustments, tax	$ (662)
Amortization of forward starting swaps, tax	$ (682)
Issuance of common stock from issuance of unvested shares, exercise of stock options and deferred compensation plans, shares	616,273
Repurchase of common stock, shares	706,491

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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Receivables,allowance for doubtful accounts	$ 5,758	$ 5,596
Preferred stock , Authorized shares	5,000,000	5,000,000
Preferred stock , par value	$ 0.01	$ 0.01
Preferred stock , Issued
Common stock, Authorized shares	150,000,000	150,000,000
Common stock, par value	$ 0.01	$ 0.01
Common stock, Issued shares	88,360,659	87,732,405
Treasury stock, shares	5,713,071	5,005,518

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Other Noncurrent Liabilities

3 Months Ended

Mar. 31, 2013

Other Noncurrent Liabilities

9. Other Noncurrent Liabilities

The components of noncurrent liabilities as of March 31, 2013 and December 31, 2012 were:

	March 31, 2013		December 31, 2012
	(In thousands)
Pension and retiree medical obligations	$	95,061	$	96,853
Liability for uncertain tax positions		5,014		4,989
Deferred revenue		6,811		6,534
Contingent consideration for acquisition .		—		5,515
Other		13,866		14,484
Total other noncurrent liabilities	$	120,752	$	128,375

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Document and Entity Information	3 Months Ended
	Mar. 31, 2013	Apr. 29, 2013
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q1
Trading Symbol	IEX
Entity Registrant Name	IDEX CORP /DE/
Entity Central Index Key	0000832101
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		82,231,721

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Borrowings

3 Months Ended

Mar. 31, 2013

Borrowings

10.    Borrowings

Borrowings at March 31, 2013 and December 31, 2012 consisted of the following:

	March 31, 2013		December 31, 2012
	(In thousands)
Revolving credit facility	$	61,000	$	21,000
4.2% Senior Notes, due December 2021		349,216		349,197
4.5% Senior Notes, due December 2020		298,723		298,689
2.58% Senior Euro Notes, due June 2015		103,664		107,042
Other borrowings		9,735		10,648
Total borrowings		822,338		786,576
Less current portion		6,776		7,335
Total long-term borrowings	$	815,562	$	779,241

On June 27, 2011, the Company and certain of its subsidiaries entered into a credit agreement (the “Credit Agreement”), as borrowers (the “Borrowers”), with Bank of America, N.A., as administrative agent, swing line lender and an issuer of letters of credit, and other lenders party thereto which provided for a new revolving credit facility (the “Revolving Facility”). The Revolving Facility replaced the Company’s previous $600.0 million credit facility, which expired in December 2011.

The Revolving Facility is in an aggregate principal amount of $700.0 million with a maturity date of June 27, 2016. The maturity date may be extended under certain conditions for an additional one-year term prior to the second anniversary of the initial closing date of June 27, 2011. Up to $75.0 million of the Revolving Facility is available for the issuance of letters of credit. Additionally, up to $25.0 million of the Revolving Facility is available to the Company for swing line loans, available on a same-day basis.

Proceeds of the Revolving Facility are available for use for working capital and other general corporate purposes, including refinancing existing debt of the Company and its subsidiaries. The Company may request increases in the lending commitments under the Credit Agreement, but the aggregate lending commitments may not exceed $950.0 million. The Company has the right, subject to certain conditions set forth in the Credit Agreement, to designate certain foreign subsidiaries of the Company as borrowers under the Credit Agreement. In connection with any such designation, the Company is required to guarantee the obligations of any such subsidiaries under the Credit Agreement. Under the Credit Agreement, Fast & Fluid Management Europe B.V., (“FME”) and IDEX UK Ltd. (“IDEX UK”) were approved by the lenders as designated borrowers. At March 31, 2013, FME and IDEX UK had no borrowings under the Revolving Facility.

Borrowings under the Revolving Facility bear interest, at either an alternate base rate or an adjusted LIBOR rate plus, an applicable margin. Such applicable margin is based on the Company’s senior, unsecured, long-term debt rating and can range from .875% to 1.70%. Based on the Company’s credit rating at March 31, 2013, the applicable margin was 1.05%. Interest is payable (a) in the case of base rate loans, quarterly, and (b) in the case of LIBOR rate loans, on the maturity date of the borrowing, or quarterly from the effective date for borrowings exceeding three months. An annual Revolving Facility fee, also based on the Company’s credit rating, is currently 20 basis points and is payable quarterly.

The Credit Agreement contains affirmative and negative covenants that the Company believes are usual and customary for senior unsecured credit agreements, including a financial covenant requiring the maintenance of a 3.25 to 1.0 or lower leverage ratio, which is the ratio of the Company’s consolidated total debt to its consolidated EBITDA, each as defined in the Credit Agreement.

The Credit Agreement also contains customary events of default (subject to grace periods, as appropriate) including among others: nonpayment of principal, interest or fees; breach of the representations or warranties in any material respect; breach of the financial, affirmative or negative covenants; payment default on, or acceleration of, other material indebtedness; bankruptcy or insolvency; material judgments entered against the Company or any of its subsidiaries; certain specified events under the Employee Retirement Income Security Act of 1974, as amended; certain changes in control of the Company; and the invalidity or unenforceability of the Credit Agreement or other documents associated with the Credit Agreement.

At March 31, 2013, $61.0 million was outstanding under the Revolving Facility, with $7.8 million of outstanding letters of credit, resulting in net available borrowing capacity under the Revolving Facility at March 31, 2013 of approximately $631.2 million.

On June 9, 2010, the Company completed a private placement of €81.0 million ($96.8 million) aggregate principal amount of 2.58% Series 2010 Senior Euro Notes due June 9, 2015 (“2.58% Senior Euro Notes”) pursuant to a Master Note Purchase Agreement, dated June 9, 2010 (the “Purchase Agreement”). The Purchase Agreement provides for the issuance of additional series of notes in the future, provided that the aggregate principal amount outstanding under the agreement at any time does not exceed $750.0 million. The 2.58% Senior Euro Notes bear interest at a rate of 2.58% per annum, which is payable semi-annually in arrears on each June 9th and December 9th and will mature on June 9, 2015. The 2.58% Senior Euro Notes are unsecured obligations of the Company and rank pari passu in right of payment with all of the Company’s other senior debt. The Company may at any time prepay all or any portion of the 2.58% Senior Euro Notes; provided that any such portion is greater than 5% of the aggregate principal amount of Notes then outstanding under the Purchase Agreement. In the event of a prepayment, the Company would be required to pay an amount equal to par plus accrued interest plus a make-whole premium. The Purchase Agreement contains certain covenants that restrict the Company’s ability to, among other things, transfer or sell assets, create liens and engage in certain mergers or consolidations. In addition, the Company must comply with a leverage ratio and interest coverage ratio as set forth in the Purchase Agreement. The Purchase Agreement provides for customary events of default. In the case of an event of default arising from specified events of bankruptcy or insolvency, all outstanding 2.58% Senior Euro Notes will become due and payable immediately without further action or notice. In the case of payment events of defaults, any holder of the 2.58% Senior Euro Notes affected thereby may declare all the 2.58% Senior Euro Notes held by it due and payable immediately. In the case of any other event of default, a majority of the holders of the 2.58% Senior Euro Notes may declare all the 2.58% Senior Euro Notes to be due and payable immediately.

On December 6, 2010, the Company completed a public offering of $300.0 million 4.5% senior notes due December 15, 2020 (“4.5% Senior Notes”). The net proceeds from the offering of $295.7 million, after deducting a $1.6 million issuance discount, a $1.9 million underwriting commission and $0.8 million offering expenses, were used to repay $250.0 million of outstanding bank indebtedness, with the balance used for general corporate purposes. The 4.5% Senior Notes bear interest at a rate of 4.5% per annum, which is payable semi-annually in arrears on each June 15th and December 15th. The Company may redeem all or a portion of the 4.5% Senior Notes at any time prior to maturity at the redemption prices set forth in the Note Indenture governing the 4.5% Senior Notes. The Company may issue additional debt from time to time pursuant to the Indenture. The Indenture and 4.5% Senior Notes contain covenants that limit the Company’s ability to, among other things, incur certain liens securing indebtedness, engage in certain sale-leaseback transactions, and enter into certain consolidations, mergers, conveyances, transfers or leases of all or substantially all the Company’s assets. The terms of the 4.5% Senior Notes also require the Company to make an offer to repurchase the 4.5% Senior Notes upon a change of control triggering event (as defined in the Indenture) at a price equal to 101% of their principal amount plus accrued and unpaid interest, if any.

On December 9, 2011, the Company completed a public offering of $350.0 million 4.2% senior notes due December 15, 2021 (“4.2% Senior Notes”). The net proceeds from the offering of $346.2 million, after deducting a $0.9 million issuance discount, a $2.3 million underwriting commission and $0.6 million offering expenses, were used to repay $306.0 million of outstanding bank indebtedness, with the balance used for general corporate purposes. The 4.2% Senior Notes bear interest at a rate of 4.2% per annum, which is payable semi-annually in arrears on each June 15th and December 15th. The Company may redeem all or a portion of the 4.2% Senior Notes at any time prior to maturity at the redemption prices set forth in the Note Indenture governing the 4.2% Senior Notes. The Company may issue additional debt from time to time pursuant to the Indenture. The Indenture and 4.2% Senior Notes contain covenants that limit the Company’s ability to, among other things, incur certain liens securing indebtedness, engage in certain sale-leaseback transactions, and enter into certain consolidations, mergers, conveyances, transfers or leases of all or substantially all the Company’s assets. The terms of the 4.2% Senior Notes also require the Company to make an offer to repurchase the 4.2% Senior Notes upon a change of control triggering event (as defined in the Indenture) at a price equal to 101% of their principal amount plus accrued and unpaid interest, if any.

Other borrowings of $9.7 million at March 31, 2013 were comprised of capital leases, debt at international locations maintained for working capital purposes and international debt as a result of acquisitions. Interest is payable on the outstanding debt balances at the international locations at rates ranging from 0.4% to 1.4% per annum.

There are two key financial covenants that the Company is required to maintain in connection with the Revolving Facility and 2.58% Senior Euro Notes. The most restrictive financial covenants under these debt instruments require a minimum interest coverage ratio of 3.0 to 1 and a maximum leverage ratio of 3.25 to 1. At March 31, 2013, the Company was in compliance with both of these financial covenants. There are no financial covenants relating to the 4.5% Senior Notes or 4.2% Senior Notes, other than cross-default provisions.

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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net sales	$ 494,448	$ 489,417
Cost of sales	282,451	286,528
Gross profit	211,997	202,889
Selling, general and administrative expenses	117,285	113,382
Restructuring expenses		4,938
Operating income	94,712	84,569
Other income - net	1,279	117
Interest expense	10,557	10,662
Income before income taxes	85,434	74,024
Provision for income taxes	24,134	21,853
Net income	$ 61,300	$ 52,171
Basic earnings per common share	$ 0.74	$ 0.63
Diluted earnings per common share	$ 0.74	$ 0.62
Share data:
Basic weighted average common shares outstanding	82,197	82,804
Diluted weighted average common shares outstanding	83,152	83,902

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Business Segments

3 Months Ended

Mar. 31, 2013

Business Segments

4.    Business Segments

The Company has three reportable business segments: Fluid & Metering Technologies, Health & Science Technologies and Fire & Safety/Diversified Products.

The Fluid & Metering Technologies segment designs, produces and distributes positive displacement pumps, flow meters, injectors, and other fluid-handling pump modules and systems and provides flow monitoring and other services for the water and wastewater industries. The Health & Science Technologies segment designs, produces and distributes a wide range of precision fluidics, rotary lobe pumps, centrifugal and positive displacement pumps, roll compaction and drying systems used in beverage, food processing, pharmaceutical and cosmetics, pneumatic components and sealing solutions, including very high precision, low-flow rate pumping solutions required in analytical instrumentation, clinical diagnostics and drug discovery, high performance molded and extruded, biocompatible medical devices and implantables, air compressors used in medical, dental and industrial applications, optical components and coatings for applications in the fields of scientific research, defense, biotechnology, aerospace, telecommunications and electronics manufacturing, laboratory and commercial equipment used in the production of micro and nano scale materials, precision photonic solutions used in life sciences, research and defense markets, and precision gear and peristaltic pump technologies that meet exacting original equipment manufacturer specifications. The Fire & Safety/Diversified Products segment produces firefighting pumps and controls, rescue tools, lifting bags and other components and systems for the fire and rescue industry, engineered stainless steel banding and clamping devices used in a variety of industrial and commercial applications, and precision equipment for dispensing, metering and mixing colorants and paints used in a variety of retail and commercial businesses around the world.

Information on the Company’s business segments is presented below, based on the nature of products and services offered. The Company evaluates performance based on several factors, of which operating income is the primary financial measure. Intersegment sales are accounted for at fair value as if the sales were to third parties.

	Three Months Ended March 31,
	2013			2012
	(In thousands)
Net sales:
Fluid & Metering Technologies:
External customers	$	211,407		$	212,466
Intersegment sales		348			252
Total group sales		211,755			212,718
Health & Science Technologies:
External customers		171,674			173,221
Intersegment sales		1,194			565
Total group sales		172,868			173,786
Fire & Safety/Diversified Products:
External customers		111,367			103,730
Intersegment sales		146			320
Total group sales		111,513			104,050
Intersegment elimination		(1,688	)		(1,137	)
Total net sales	$	494,448		$	489,417
Operating income and income before income taxes:
Fluid & Metering Technologies	$	48,079		$	44,526
Health & Science Technologies		32,267			30,270
Fire & Safety/Diversified Products		28,232			23,688
Corporate office and other		(13,866	)		(13,915	)
Total operating income		94,712			84,569
Interest expense		10,557			10,662
Other income-net		1,279			117
Income before income taxes	$	85,434		$	74,024

	March 31, 2013		December 31, 2012
	(In thousands)
Assets:
Fluid & Metering Technologies	$	1,033,752	$	1,023,143
Health & Science Technologies		1,123,755		1,102,868
Fire & Safety/Diversified Products		494,258		488,886
Corporate office and other(1)		170,835		170,493
Total assets	$	2,822,600	$	2,785,390

(1) Includes intersegment eliminations.

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Acquisitions

3 Months Ended

Mar. 31, 2013

Acquisitions

3.    Acquisitions

All of the Company’s acquisitions have been accounted for under Accounting Standards Codification (“ASC”) 805, Business Combinations. Accordingly, the accounts of the acquired companies, after adjustments to reflect fair values assigned to assets and liabilities, have been included in the consolidated financial statements from their respective dates of acquisition.

2013 Acquisitions

On March 18, 2013, the Company acquired the assets of FTL Seals Technology, Ltd (“FTL”). FTL specializes in the design and application of high integrity rotary seals, specialty bearings, and other custom products for the oil & gas, mining, power generation, and marine markets. Located in Leeds, England, FTL has annual revenues of approximately $22.5 million (£15.0 million). FTL, along with Precision Polymer Engineering (“PPE”), operates within the Health & Science Technologies segment as part of the Sealing Solutions group (formerly the Containment group) and will expand the range of PPE’s technology expertise while also introducing adjacent markets. FTL was acquired for an aggregate purchase price of $34.6 million (£23.1 million) in cash. The $34.6 million cash payment was funded with borrowings under the Company’s revolving credit facility. Goodwill and intangible assets recognized as part of this transaction were $18.1 million and $13.0 million, respectively. The $18.1 million of goodwill is not deductible for tax purposes.

The purchase price for FTL has been allocated to the assets acquired and liabilities assumed based on estimated fair values at the date of the acquisition. These nonrecurring fair value measurements are classified as Level 3 in the fair value hierarchy. The Company is in the process of obtaining or finalizing appraisals of intangible assets and it is continuing to evaluate the initial purchase price allocations, as of the acquisition date, which will be adjusted as additional information relative to the fair values of the assets and liabilities of the business become known. Accordingly, management has used its best estimate in the initial purchase price allocation as of the date of these financial statements.

The allocation of the acquisition costs to the assets acquired and liabilities assumed, based on their estimated fair values, is as follows:

(In thousands)
Accounts receivable	$	3,446
Inventory		4,524
Other current assets, net of cash acquired		133
Property, plant and equipment		1,384
Goodwill		18,084
Intangible assets		13,016
Total assets acquired		40,587
Total liabilities assumed		(5,939	)
Net assets acquired	$	34,648

Acquired intangible assets consist of trade names, non-compete agreements, customer relationships and unpatented technology. The goodwill recorded for the acquisition reflects the strategic fit, revenue and earnings growth potential of this business.

The acquired intangible assets and weighted average amortization periods are as follows:

(In thousands)	Total		Weighted Average Life
Trade names	$	1,005		15
Non-compete agreements		224		3
Customer relationships		10,950		9
Unpatented technology		837		8
2013 acquired intangible assets	$	13,016

The Company incurred $1.1 million of acquisition-related transaction costs in 2013. These costs were recorded in selling, general and administrative expense and were related to completed transactions, pending transactions and potential transactions, including transactions that ultimately were not completed.

2012 Acquisitions

On April 11, 2012, the Company acquired the stock of PPC. PPC specializes in optical components and coatings for applications in the fields of scientific research, aerospace, telecommunications and electronics manufacturing. Located in Boulder, Colorado, PPC has annual revenues of approximately $7.0 million. PPC operates within the Health & Science Technologies segment as a part of the IDEX Optics & Photonics platform. The Company acquired PPC for an aggregate purchase price of $20.6 million in cash, which was funded from operations. Goodwill and intangible assets recognized as part of this transaction were $13.9 million and $5.1 million, respectively. The $13.9 million of goodwill is not deductible for tax purposes.

On April 30, 2012, the Company acquired the stock of ERC. ERC is a leader in the manufacture of gas liquid separations and detection solutions for the life science, analytical instrumentation and clinical chemistry markets. ERC’s pioneering products include in-line membrane vacuum degassing solutions, refractive index detectors and ozone generation systems. ERC’s original equipment degassing solutions are considered the “standard” for many of the world’s leading instrument producers. Located in Kawaguchi, Japan, ERC has annual revenues of approximately $27.0 million (¥2.14 billion) and operates as part of the IDEX Health & Science platform within the Health & Science Technologies segment. The Company acquired ERC for an aggregate purchase price of $18.0 million (¥1.47 billion), consisting of $13.3 million in cash and assumption of approximately $4.7 million of debt. The cash payment was financed with borrowings under the Company’s revolving credit facility. Goodwill and intangible assets recognized as part of this transaction were $8.5 million and $5.6 million, respectively. The $8.5 million of goodwill is not deductible for tax purposes.

On July 20, 2012, the Company acquired the stock of Matcon. Matcon is a global leader in material processing solutions for high value powders used in the manufacture of pharmaceuticals, food, plastics, and fine chemicals. Matcon’s innovative products include the original cone valve powder discharge system and filling, mixing and packaging systems, all of which support their customers’ automation and process requirements. Matcon’s products are critical to their customers’ need to maintain clean, reliable and repeatable formulations of prepackaged foods and pharmaceuticals while helping them achieve lean and agile manufacturing. Located in Evesham, Worcestershire, England, Matcon has annual revenues of approximately $34.4 million (£22.0 million) and operates within the Health & Science Technologies segment as part of the Materials Process Technologies platform. The Company acquired Matcon for an aggregate purchase price of $45.8 million (£29.1 million), consisting of $35.0 million in cash, $2.4 million of working capital adjustments to be paid in the second quarter of 2013, and contingent consideration valued at $8.4 million as of the opening balance sheet date. The contingent consideration amount is based on 2012 and 2013 earnings before interest, income taxes, depreciation and amortization for Matcon and will be settled in the first six months of 2013 and 2014, respectively. Based on potential outcomes, the undiscounted amount of all future payments that the Company could be required to pay under the contingent consideration arrangement is estimated between $3.8 and $8.6 million. Approximately $15.0 million of the purchase price cash payment was financed with borrowings under the revolving credit facility. Goodwill and intangible assets recognized as part of this transaction were $28.0 million and $14.1 million, respectively. The $28.0 million of goodwill is not deductible for tax purposes.

The purchase price for PPC, ERC and Matcon was allocated to the assets acquired and liabilities assumed based on estimated fair values at the date of the acquisition.

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Share-Based Compensation

3 Months Ended

Mar. 31, 2013

Share-Based Compensation

15.    Share-Based Compensation

During the three months ended March 31, 2013, the Company granted approximately 0.6 million stock options and 0.2 million unvested shares, respectively. During the three months ended March 31, 2012, the Company granted approximately 0.7 million stock options and 0.2 million unvested shares, respectively.

Beginning in 2013, the Company provides performance share units to selected key employees that may be earned based on IDEX total shareholder return over the three-year period following the date of grant. Performance share units (referred to as “TSR awards”) are expected to be made annually and are paid out at the end of a three-year period based on the Company’s performance. Performance is measured by determining the percentile rank of the total shareholder return of IDEX common stock in relation to the total shareholder return of the S&P Midcap 400 Industrial Group for the three-year period following the date of grant. The payment of awards following the three-year award period will be based on performance achieved in accordance with the scale set forth in the plan agreement and may range from 0 percent to 200 percent of the initial grant. A target payout of 100 percent is earned if total shareholder return is equal to the 50^th percentile of the S&P Midcap 400 Industrial Group. Performance share units earn dividend equivalents for the award period, which will be paid to participants with the award payout at the end of the period based on the actual number of performance share units that are earned. Any payments made at the end of the award period will be in the form of stock. During the three months ended March 31, 2013, the Company granted approximately 0.1 million performance share units.

The fair value of each option grant was estimated on the date of grant using the Black-Scholes option pricing model. The performance share units are market condition awards and have been assessed at fair value on the date of grant using a Monte Carlo simulation model.

Weighted average option fair values and assumptions for the periods specified are disclosed in the following table:

	Three Months Ended March 31,
	2013	2012
Weighted average fair value of option grants	$ 12.85	$ 11.47
Dividend yield	1.57%	1.57%
Volatility	30.94%	32.01%
Risk-free forward interest rate	0.17%-4.10%	0.17%-3.98%
Expected life (in years)	5.87	5.98

Weighted average performance share unit fair values and assumptions for the period specified are disclosed in the following table:

	Three Months Ended March 31, 2013
Weighted average fair value of performance share units	$50.45
Dividend yield	0.00%
Volatility	28.99%
Risk-free forward interest rate	0.40%
Expected life (in years)	2.87

The Company’s policy is to recognize compensation cost on a straight-line basis over the requisite service period for the entire award. Additionally, the Company’s general policy is to issue newly issued shares of common stock to satisfy stock option exercises, grants of unvested shares and vesting of performance share units.

Total compensation cost for the stock options is as follows:

	Three Months Ended March 31,
	2013			2012
	(in thousands)
Cost of goods sold	$	192		$	293
Selling, general and administrative expenses		2,169			1,966
Total expense before income taxes		2,361			2,259
Income tax benefit		(737	)		(708	)
Total expense after income taxes	$	1,624		$	1,551

Total compensation cost for unvested shares is as follows:

	Three Months Ended March 31,
	2013			2012
	(in thousands)
Cost of goods sold	$	402		$	406
Selling, general and administrative expenses		2,660			1,996
Total expense before income taxes		3,062			2,402
Income tax benefit		(715	)		(663	)
Total expense after income taxes	$	2,347		$	1,739

Total compensation cost for performance share units is as follows:

	Three Months Ended March  31, 2013
	(in thousands)
Cost of goods sold	$	—
Selling, general and administrative expenses		189
Total expense before income taxes		189
Income tax benefit		(37	)
Total expense after income taxes	$	152

Classification of stock compensation cost within the Consolidated Statements of Operations is consistent with classification of cash compensation for the same employees.

As of March 31, 2013, there was $12.4 million of total unrecognized compensation cost related to stock options that is expected to be recognized over a weighted-average period of 1.6 years, $15.6 million of total unrecognized compensation cost related to unvested shares that is expected to be recognized over a weighted-average period of 1.3 years, and $2.3 million of total unrecognized compensation cost related to performance share units that is expected to be recognized over a weighted-average period of 1.5 years.

A summary of the Company’s stock option activity as of March 31, 2013, and changes during the quarter ended March 31, 2013 is presented in the following table:

Stock Options	Shares			Weighted Average Price		Weighted-Average Remaining Contractual Term		Aggregate Intrinsic Value
Outstanding at January 1, 2013		3,223,742		$	33.16		6.37	$	43,106,153
Granted		617,715			50.26
Exercised		(386,937	)		27.87
Forfeited/Expired		(52,575	)		42.01
Outstanding at March 31, 2013		3,401,945		$	36.73		7.00	$	56,781,822
Vested and expected to vest at March 31, 2013		2,987,418		$	36.33		6.85	$	51,055,880
Exercisable at March 31, 2013		1,913,459		$	30.63		5.47	$	43,606,478

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Derivative Instruments

3 Months Ended

Mar. 31, 2013

Derivative Instruments

11.    Derivative Instruments

The Company enters into cash flow hedges to reduce the exposure to variability in certain expected future cash flows. The type of cash flow hedges the Company enters into includes foreign currency contracts and interest rate exchange agreements that effectively convert a portion of floating-rate debt to fixed-rate debt and are designed to reduce the impact of interest rate changes on future interest expense.

The effective portion of gains or losses on interest rate exchange agreements is reported in accumulated other comprehensive income (loss) in shareholders’ equity and reclassified into net income in the same period or periods in which the hedged transaction affects net income. The remaining gain or loss in excess of the cumulative change in the present value of future cash flows or the hedged item, if any, is recognized into net income during the period of change.

Fair values relating to derivative financial instruments reflect the estimated amounts that the Company would receive or pay to sell or buy the contracts based on quoted market prices of comparable contracts at each balance sheet date.

On April 15, 2010, the Company entered into a forward starting interest rate contract with a notional amount of $300.0 million with a settlement date in December 2010. This contract was entered into in anticipation of the issuance of the 4.5% Senior Notes and was designed to lock in the market interest rate as of April 15, 2010. In December 2010, the Company settled and paid this interest rate contract for $31.0 million. The $31.0 million is being amortized into interest expense over the 10 year term of the 4.5% Senior Notes, which results in an effective interest rate of 5.8%.

On July 12, 2011, the Company entered into a forward starting interest rate contract with a notional amount of $350.0 million and a settlement date of September 30, 2011. This contract was entered into in anticipation of the issuance of the 4.2% Senior Notes and was designed to lock in the market interest rate as of July 12, 2011. On September 29, 2011, the Company settled this interest rate contract for $34.7 million with a payment made on October 3, 2011. Simultaneously, the Company entered into a separate interest rate contract with a notional amount of $350.0 million and a settlement date of February 28, 2012. The contract was entered into in anticipation of the expected issuance of the 4.2% Senior Notes and was designed to maintain the market rate as of July 12, 2011. In December 2011, the Company settled and paid the September interest rate contract for $4.0 million, resulting in a total settlement of $38.7 million. Of the $38.7 million, $0.8 million was recognized as other expense in 2011 and the balance of $37.9 million is being amortized into interest expense over the 10 year term of the 4.2% Senior Notes, which results in an effective interest rate of 5.3%.

As of March 31, 2013, the Company did not have any interest rate contracts outstanding.

The following table summarizes the loss reclassified into income for interest rate contracts for March 31, 2013 and 2012:

	Three Months Ended March 31,
	2013		2012
Interest rate agreements	$	1,872	$	1,925

Approximately $7.4 million of the pre-tax amount included in accumulated other comprehensive income (loss) in shareholders’ equity at March 31, 2013 will be recognized to net income over the next 12 months as the underlying hedged transactions are realized.

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Goodwill and Intangible Assets

3 Months Ended

Mar. 31, 2013

Goodwill and Intangible Assets

7.    Goodwill and Intangible Assets

The changes in the carrying amount of goodwill for the three months ended March 31, 2013, by reportable business segment, were as follows:

(In thousands)	Fluid & Metering Technologies			Health & Science Technologies			Fire &  Safety/ Diversified Products			Total
Balance at December 31, 2012	$	524,325		$	553,204		$	244,198		$	1,321,727
Foreign currency translation		(3,362	)		(5,854	)		(4,656	)		(13,872	)
Acquisitions		—			18,084			—			18,084
Balance at March 31, 2013	$	520,963		$	565,434		$	239,542		$	1,325,939

ASC 350 “Goodwill and Other Intangible Assets” requires that goodwill be tested for impairment at the reporting unit level on an annual basis and between annual tests if an event occurs or circumstances change that would more likely than not reduce the fair value of the reporting unit below its carrying value. Annually on October 31, goodwill and other acquired intangible assets with indefinite lives are tested for impairment. The Company did not consider there to be any triggering event that would require an interim impairment assessment, therefore none of the goodwill or other acquired intangible assets with indefinite lives were tested for impairment during the three months ended March 31, 2013.

The following table provides the gross carrying value and accumulated amortization for each major class of intangible asset at March 31, 2013 and December 31, 2012:

	At March 31, 2013									At December 31, 2012
	Gross Carrying Amount		Accumulated Amortization			Net		Weighted Average Life		Gross Carrying Amount		Accumulated Amortization			Net
	(In thousands)									(In thousands)
Amortized intangible assets:
Patents	$	10,526	$	(4,361	)	$	6,165		11	$	10,650	$	(4,273	)	$	6,377
Trade names		102,907		(22,999	)		79,908		16		103,113		(21,603	)		81,510
Customer relationships		237,937		(98,582	)		139,355		10		230,196		(93,273	)		136,923
Non-compete agreements		3,697		(2,965	)		732		3		3,505		(2,827	)		678
Unpatented technology		74,291		(25,967	)		48,324		11		74,758		(24,211	)		50,547
Other		6,832		(3,775	)		3,057		10		6,841		(3,604	)		3,237
Total amortized intangible assets		436,190		(158,649	)		277,541				429,063		(149,791	)		279,272
Unamortized intangible asset:
Banjo trade name		62,100		—			62,100				62,100		—			62,100
Total intangible assets	$	498,290	$	(158,649	)	$	339,641			$	491,163	$	(149,791	)	$	341,372

The unamortized Banjo trade name is an indefinite lived intangible asset which is tested for impairment on an annual basis in accordance with ASC 350 or more frequently if events or changes in circumstances indicate that the asset might be impaired.

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Derivative Instruments - Additional Information (Detail) (USD $)	1 Months Ended		3 Months Ended			1 Months Ended			1 Months Ended			1 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Mar. 31, 2013	Mar. 31, 2012	Sep. 29, 2011	Dec. 31, 2010 Interest Rate Exchange Agreement Expiring 2010 Y	Apr. 30, 2010 Interest Rate Exchange Agreement Expiring 2010	Apr. 15, 2010 Interest Rate Exchange Agreement Expiring 2010	Oct. 31, 2011 Interest Rate Exchange Agreement Expiring 2011	Jul. 31, 2011 Interest Rate Exchange Agreement Expiring 2011	Jul. 12, 2011 Interest Rate Exchange Agreement Expiring 2011	Dec. 31, 2011 Interest Rate Exchange Agreements Expiring 2011 And 2012	Dec. 06, 2010 4.5 % Senior Notes	Apr. 15, 2010 4.5 % Senior Notes
Derivative [Line Items]
Interest rate contract with notional amount					$ 350,000,000			$ 300,000,000			$ 350,000,000
Interest rate exchange agreement expiration date		Feb. 28, 2012					Dec. 31, 2010			Sep. 30, 2011
Interest rate on senior notes													4.50%	4.50%
Interest rate contract settlement amount						31,000,000			34,700,000
Amortization of interest expense			425,000	369,000		31,000,000						37,900,000
Term of amortized interest expense, years						10
Interest rate						5.80%						5.30%
Additional interest rate contract settlement	4,000,000
Settlement amount interest rate contract												38,700,000
Interest rate settlement recognized as other expense												800,000
Amount to be recognized from hedged transactions within 12 months, approximate			$ 7,400,000

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Earnings Per Common Share

3 Months Ended

Mar. 31, 2013

Earnings Per Common Share

5.    Earnings Per Common Share

Earnings per common share (“EPS”) are computed by dividing net income by the weighted average number of shares of common stock (basic) plus common stock equivalents outstanding (diluted) during the period. Common stock equivalents consist of stock options, which have been included in the calculation of weighted average shares outstanding using the treasury stock method, unvested shares, and shares issuable in connection with certain deferred compensation agreements (“DCUs”).

ASC 260 “Earnings Per Share”, provides that all outstanding unvested share-based payment awards that contain rights to nonforfeitable dividends participate in undistributed earnings with common shareholders. If awards are considered participating securities, the Company is required to apply the two-class method of computing basic and diluted earnings per share. The Company has determined that its outstanding unvested shares are participating securities. Accordingly, earnings per common share are computed using the two-class method prescribed by ASC 260. Net income attributable to common shareholders was reduced by $0.3 million and $0.2 million for the three months ended March 31, 2013 and 2012, respectively.

Basic weighted average shares reconciles to diluted weighted average shares as follows:

	Three Months Ended March 31,
	2013		2012
	(In thousands)
Basic weighted average common shares outstanding		82,197		82,804
Dilutive effect of stock options, unvested shares, and DCUs		955		1,098
Diluted weighted average common shares outstanding		83,152		83,902

Options to purchase approximately 0.6 million and 1.3 million shares of common stock for the three months ended March 31, 2013 and 2012, respectively, were not included in the computation of diluted EPS because the effect of their inclusion would be antidilutive.

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Inventories

3 Months Ended

Mar. 31, 2013

Inventories

6.    Inventories

The components of inventories as of March 31, 2013 and December 31, 2012 were:

	March 31, 2013		December  31, 2012
	(In thousands)
Raw materials and component parts	$	136,868	$	139,229
Work-in-process		36,915		33,025
Finished goods		65,792		62,696
Total	$	239,575	$	234,950

Inventories are stated at the lower of cost or market. Cost, which includes material, labor, and factory overhead, is determined on a FIFO basis.

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Accrued Expenses

3 Months Ended

Mar. 31, 2013

Accrued Expenses

8.    Accrued Expenses

The components of accrued expenses as of March 31, 2013 and December 31, 2012 were:

	March  31, 2013		December  31, 2012
	(In thousands)
Payroll and related items	$	48,445	$	55,618
Management incentive compensation		5,299		15,974
Income taxes payable		22,896		10,284
Deferred income taxes		386		—
Insurance		9,445		8,974
Warranty		4,816		4,875
Deferred revenue		11,765		9,682
Restructuring		4,205		10,887
Liability for uncertain tax positions		2,685		2,679
Accrued interest		9,428		1,713
Contingent consideration for acquisition		8,644		3,528
Other		26,456		25,962
Total accrued expenses	$	154,470	$	150,176

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Components of Other Comprehensive Income Loss (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Pre Tax
Cumulative translation adjustment, Pre-tax	$ (27,253)	$ 15,031
Pension and other postretirement adjustments, Pre-tax	1,935	1,747
Reclassification adjustments for derivatives, Pre-tax	1,872	1,925
Total other comprehensive income (loss), Pre-tax	(23,446)	18,703
Tax
Cumulative translation adjustment, Tax
Pension and other postretirement adjustments, tax	(662)	(624)
Reclassification adjustments for derivatives, Tax	(682)	(704)
Total other comprehensive income (loss), Tax	(1,344)	(1,328)
Net of tax
Cumulative translation adjustment, net of tax	(27,253)	15,031
Pension and other postretirement adjustments, net of tax	1,273	1,123
Reclassification adjustments for derivatives, net of tax	1,190	1,221
Total other comprehensive income (loss), net of tax	$ (24,790)	$ 17,375

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Common and Preferred Stock - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended
	Oct. 31, 2012	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2012
Stockholders Equity Note [Line Items]
Increase in share repurchase authorized amount	$ 200,000,000
Purchase of common stock (in shares)		706,491
Purchase of common stock		33,115,000	10,183,000
Common stock, shares authorized		150,000,000		150,000,000
Common stock, par value		$ 0.01		$ 0.01
Preferred stock, shares authorized		5,000,000		5,000,000
Preferred stock, par value		$ 0.01		$ 0.01
Preferred stock, shares issued
Repurchase Of Common Stock
Stockholders Equity Note [Line Items]
Purchase of common stock (in shares)		706,491	200,000
Purchase of common stock		35,700,000	10,183,000
April Settlement
Stockholders Equity Note [Line Items]
Purchase of common stock		$ 2,600,000

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Fair Value Measurements - Additional Information (Detail) (USD $)	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 2.58% Senior Euro Notes	Mar. 31, 2013 Senior Notes	Mar. 31, 2013 4.2% Senior Notes	Mar. 31, 2013 Matcon Group Limited	Jul. 20, 2012 Matcon Group Limited
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Contingent consideration fair value	$ 8,644,000	$ 9,043,000				$ 8,600,000	$ 8,400,000
Contingent consideration fair value						8,600,000
Stated interest rate			2.58%	4.50%	4.20%
Fair value of our revolving facility and senior debt	858,400,000
Carrying value of our revolving facility and senior debt	$ 812,600,000

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Accrued Expenses (Tables)

3 Months Ended

Mar. 31, 2013

Components of Accrued Expenses

The components of accrued expenses as of March 31, 2013 and December 31, 2012 were:

	March  31, 2013		December  31, 2012
	(In thousands)
Payroll and related items	$	48,445	$	55,618
Management incentive compensation		5,299		15,974
Income taxes payable		22,896		10,284
Deferred income taxes		386		—
Insurance		9,445		8,974
Warranty		4,816		4,875
Deferred revenue		11,765		9,682
Restructuring		4,205		10,887
Liability for uncertain tax positions		2,685		2,679
Accrued interest		9,428		1,713
Contingent consideration for acquisition		8,644		3,528
Other		26,456		25,962
Total accrued expenses	$	154,470	$	150,176

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Schedule of Basic Weighted Average Shares Reconciles to Diluted Weighted Average Shares Outstanding (Detail) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Weighted Average Number of Shares Outstanding [Line Items]
Basic weighted average common shares outstanding	82,197	82,804
Dilutive effect of stock options, unvested shares, and DCUs	955	1,098
Diluted weighted average common shares outstanding	83,152	83,902

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Other Comprehensive Income (Loss)

3 Months Ended

Mar. 31, 2013

Other Comprehensive Income (Loss)

13.    Other Comprehensive Income (Loss)

The components of other comprehensive income (loss) are as follows:

	Three months ended March 31, 2013									Three months ended March 31, 2012
	Pre-tax			Tax			Net of tax			Pre-tax		Tax			Net of tax
	(In thousands)
Cumulative translation adjustment	$	(27,253	)	$	—		$	(27,253	)	$	15,031	$	—		$	15,031
Pension and other postretirement adjustments		1,935			(662	)		1,273			1,747		(624	)		1,123
Reclassification adjustments for derivatives		1,872			(682	)		1,190			1,925		(704	)		1,221
Total other comprehensive income (loss)	$	(23,446	)	$	(1,344	)		(24,790	)		18,703		(1,328	)		17,375

The following table summarizes the amounts reclassified from accumulated other comprehensive income (loss) to net income (loss) during the three months ended March 31, 2013 and 2012:

	Three months ended March  31,
	2013			2012			Income Statement Caption
	(In thousands)
Pension and other postretirement plans:
Amortization of service cost	$	1,935		$	1,747		Selling general and administrative expense
Total before tax		1,935			1,747
Provision for income taxes		(662	)		(624	)
Total net of tax	$	1,273		$	1,123
Derivatives:
Reclassification adjustments	$	1,872		$	1,925		Interest expense
Total before tax		1,872			1,925
Provision for income taxes		(682	)		(704	)
Total net of tax	$	1,190		$	1,221

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Income Taxes

3 Months Ended

Mar. 31, 2013

Income Taxes

18.    Income Taxes

The Company’s provision for income taxes is based upon estimated annual tax rates for the year applied to federal, state and foreign income. The provision for income taxes increased to $24.1 million in the first quarter of 2013 from $21.9 million in the first quarter of 2012. The effective tax rate decreased to 28.2% for the first quarter of 2013 compared to 29.5% in the first quarter of 2012 primarily due to the enactment of the American Taxpayer Relief Act of 2012 on January 2, 2013, which reinstated the U.S. R&D credit retroactively to January 1, 2012, as well as the mix of global pre-tax income among jurisdictions.

The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction, and various state and foreign jurisdictions. Due to the potential for resolution of federal, state and foreign examinations, and the expiration of various statutes of limitation, it is reasonably possible that the Company’s gross unrecognized tax benefits balance may change within the next twelve months by a range of zero to $2.7 million.

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Schedule of Information on Company's Business Segments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012	Dec. 31, 2012
Segment Reporting Information [Line Items]
Total net sales	$ 494,448		$ 489,417
Total operating income	94,712		84,569
Interest expense	10,557		10,662
Other income-net	1,279		117
Income before income taxes	85,434		74,024
Total assets	2,822,600			2,785,390
Fluid & Metering Technologies
Segment Reporting Information [Line Items]
External customers	211,407		212,466
Intersegment sales	348		252
Total net sales	211,755		212,718
Total operating income	48,079		44,526
Total assets	1,033,752			1,023,143
Health & Science Technologies
Segment Reporting Information [Line Items]
External customers	171,674		173,221
Intersegment sales	1,194		565
Total net sales	172,868		173,786
Total operating income	32,267		30,270
Total assets	1,123,755			1,102,868
Fire & Safety/Diversified Products
Segment Reporting Information [Line Items]
External customers	111,367		103,730
Intersegment sales	146		320
Total net sales	111,513		104,050
Total operating income	28,232		23,688
Total assets	494,258			488,886
Intersegment Elimination
Segment Reporting Information [Line Items]
Total net sales	(1,688)		(1,137)
Corporate Office/Other
Segment Reporting Information [Line Items]
Total operating income	(13,866)		(13,915)
Total assets	$ 170,835	[1]		$ 170,493	[1]

[1] Includes intersegment eliminations.

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Retirement Benefits (Tables)

3 Months Ended

Mar. 31, 2013

Pension Plans

Components of Net Periodic Benefit Cost for Defined Benefit Plans and Other Postretirement Plans

The following tables provide the components of net periodic benefit cost for its major defined benefit plans and its other postretirement plans.

	Pension Benefits
	Three Months Ended March 31,
	2013						2012
	U.S.			Non-U.S.			U.S.			Non-U.S.
	(In thousands)
Service cost	$	437		$	339		$	486		$	342
Interest cost		943			519			1,092			557
Expected return on plan assets		(1,353	)		(256	)		(1,211	)		(257	)
Net amortization		1,614			230			1,591			83
Net periodic benefit cost	$	1,641		$	832		$	1,958		$	725

Other Postretirement Benefit Plans

Components of Net Periodic Benefit Cost for Defined Benefit Plans and Other Postretirement Plans

	Other Postretirement Benefits
	Three Months Ended March 31,
	2013		2012
Service cost	$	242	$	190
Interest cost		227		229
Net amortization		6		(37	)
Net periodic benefit cost	$	475	$	382

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net income	$ 61,300	$ 52,171
Other comprehensive income
Reclassification adjustments for derivatives, net of tax	1,190	1,221
Pension and other postretirement adjustments, net of tax	1,273	1,123
Cumulative translation adjustment	(27,253)	15,031
Other comprehensive (loss) income	(24,790)	17,375
Comprehensive income	$ 36,510	$ 69,546

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Restructuring

3 Months Ended

Mar. 31, 2013

Restructuring

2.    Restructuring

During 2012, the Company recorded restructuring costs as a part of 2011 restructuring initiatives that support the implementation of key strategic efforts designed to facilitate long-term sustainable growth through cost reduction actions, primarily consisting of employee reductions and facility rationalization. The costs incurred related to these initiatives are included in Restructuring expenses in the Consolidated Statements of Operations while the related accruals are included in Accrued expenses in the Consolidated Balance Sheets. Severance costs primarily consist of severance benefits through payroll continuation, COBRA subsidies, outplacement services, conditional separation costs and employer tax liabilities, while exit costs primarily consist of asset disposals or impairments, the termination of a defined benefit plan, legal costs and relocation charges. During the three months ended March 31, 2012, the Company recorded $4.9 million of pre-tax restructuring expenses related to its 2011 restructuring initiative for employee severance related to employee reductions across various functional areas as well as facility rationalization. The 2011 restructuring initiatives included severance benefits for 337 employees. The 2011 initiative was completed by the end of 2012 and no further restructuring is currently planned. Severance payments are expected to be fully paid in the next nine months using cash from operations.

Pre-tax restructuring expenses, by segment, for the quarter ended March 31, 2012, were as follows:

	Severance Costs		Exit Costs		Total
	(In thousands)
Fluid & Metering Technologies	$	2,659	$	—	$	2,659
Health & Science Technologies		1,150		305		1,455
Fire & Safety/Diversified Products		—		544		544
Corporate/Other		81		199		280
Total restructuring costs	$	3,890	$	1,048	$	4,938

Restructuring accruals of $4.2 million and $10.9 million at March 31, 2013 and December 31, 2012, respectively, are reflected in Accrued expenses in the Consolidated Balance Sheets as follows:

(In thousands)
Balance at January 1, 2013	$	10,887
Restructuring expenses		—
Payments/utilization		(6,682	)
Balance at March 31, 2013	$	4,205

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Schedule of Borrowings (Parenthetical) (Detail)	Mar. 31, 2013	Dec. 31, 2012
4.2% Senior Notes
Debt Instrument [Line Items]
Senior Notes, maturity date	2021-12	2021-12
4.5 % Senior Notes
Debt Instrument [Line Items]
Senior Notes, maturity date	2020-12	2020-12
2.58% Senior Euro Notes
Debt Instrument [Line Items]
Senior Notes, maturity date	2015-06	2015-06

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Schedule of Compensation Cost for Stock Options, Unvested Shares and Performance Share Units (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	$ 5,612	$ 4,661
Stock Option
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	2,361	2,259
Income tax benefit	(737)	(708)
Total expense after income taxes	1,624	1,551
Stock Option | Cost Of Goods Sold
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	192	293
Stock Option | Selling, General And Administrative Expenses
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	2,169	1,966
Unvested Shares
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	3,062	2,402
Income tax benefit	(715)	(663)
Total expense after income taxes	2,347	1,739
Unvested Shares | Cost Of Goods Sold
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	402	406
Unvested Shares | Selling, General And Administrative Expenses
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	2,660	1,996
Performance Shares
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	189
Income tax benefit	(37)
Total expense after income taxes	152
Performance Shares | Selling, General And Administrative Expenses
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Total expense before income taxes	$ 189

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Basis of Presentation and Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2013

Adoption of New Accounting Standards

Adoption of New Accounting Standards

In February 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2013-02 which requires additional disclosures regarding the reporting of reclassifications out of accumulated other comprehensive income. ASU 2013-02 requires an entity to present, either on the face of the statement where net income is presented or in the notes, significant amounts reclassified out of accumulated other comprehensive income by the respective line items of net income but only if the amount reclassified is required under U.S. GAAP to be reclassified to net income in its entirety in the same reporting period. This guidance is effective for reporting periods beginning after December 15, 2012. The Company adopted this guidance effective January 1, 2013 and its adoption did not impact the consolidated financial position, results of operations or cash flows of the Company. See Note 13 for a further discussion on other comprehensive income (loss).

New Accounting Pronouncements

New Accounting Pronouncements

In July 2012, the FASB issued ASU 2012-02, “Intangibles — Goodwill and Other (Topic 350): Testing Indefinite-Lived Intangible Assets for Impairment” which allows an entity to first assess qualitative factors to determine whether it is necessary to perform a quantitative impairment test of an indefinite-lived intangible asset. Under ASU 2012-02, an entity would not be required to calculate the fair value of an indefinite-lived intangible asset if the entity determines, based on qualitative assessment, that it is not more likely than not impaired. The revised standard is effective for annual and interim impairment tests performed for fiscal years beginning after September 15, 2012. As of March 31, 2013, the Company did not apply ASU 2012-02, however the Company does not expect ASU 2012-02 to have a material impact on the consolidated financial position, results of operations or cash flows of the Company.

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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2013

Schedule of Company's Financial Assets and (Liabilities) at Fair Value on Recurring Basis

The following table summarizes the basis used to measure the Company’s financial assets and (liabilities) at fair value on a recurring basis in the balance sheet at March 31, 2013 and December 31, 2012:

	Basis of Fair Value Measurements
	Balance at March 31,  2013			Level 1		Level 2		Level 3
	(In thousands)
Money market investment	$	18,324		$	18,324	$	—	$	—
Available for sale securities		2,789			2,789		—		—
Contingent consideration		(8,644	)		—		—		(8,644	)

	Basis of Fair Value Measurements
	Balance at December 31, 2012			Level 1		Level 2		Level 3
	(In thousands)
Money market investment	$	11,165		$	11,165	$	—	$	—
Available for sale securities		2,862			2,862		—		—
Contingent consideration		(9,043	)		—		—		(9,043	)

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Fair Value Measurements

3 Months Ended

Mar. 31, 2013

Fair Value Measurements

12.    Fair Value Measurements

ASC 820 “Fair Value Measurements and Disclosures” defines fair value, provides guidance for measuring fair value and requires certain disclosures. This standard discusses valuation techniques, such as the market approach (comparable market prices), the income approach (present value of future income or cash flow), and the cost approach (cost to replace the service capacity of an asset or replacement cost). The standard utilizes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The following is a brief description of those three levels:

• Level 1: Observable inputs such as quoted prices (unadjusted) in active markets for identical assets or liabilities.

• Level 2: Inputs, other than quoted prices that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active.

• Level 3: Unobservable inputs that reflect the reporting entity’s own assumptions.

The following table summarizes the basis used to measure the Company’s financial assets and (liabilities) at fair value on a recurring basis in the balance sheet at March 31, 2013 and December 31, 2012:

	Basis of Fair Value Measurements
	Balance at March 31,  2013			Level 1		Level 2		Level 3
	(In thousands)
Money market investment	$	18,324		$	18,324	$	—	$	—
Available for sale securities		2,789			2,789		—		—
Contingent consideration		(8,644	)		—		—		(8,644	)

	Basis of Fair Value Measurements
	Balance at December 31, 2012			Level 1		Level 2		Level 3
	(In thousands)
Money market investment	$	11,165		$	11,165	$	—	$	—
Available for sale securities		2,862			2,862		—		—
Contingent consideration		(9,043	)		—		—		(9,043	)

There were no transfers of assets or liabilities between Level 1 and Level 2 during the first three months of 2013 or 2012.

In determining the fair value of the contingent consideration potentially due on the acquisition of Matcon, the Company used probability weighted estimates adjusted for the time value of money. The Matcon contingent consideration liability is valued at $8.6 million, of which $8.4 million was recorded as part of the purchase price as of the opening balance sheet date. At March 31, 2013, the $8.6 million of contingent consideration is included in Accrued expenses in the Consolidated Balance Sheet.

The carrying value of our cash and cash equivalents, accounts receivable, accounts payable and accrued expenses approximates their fair values because of the short term nature of these instruments. At March 31, 2013, the fair value of our Revolving Facility, 2.58% Senior Euro Notes, 4.5% Senior Notes and 4.2% Senior Notes, based on quoted market prices and current market rates for debt with similar credit risk and maturity, was approximately $858.4 million compared to the carrying value of $812.6 million. This fair value measurement is classified as Level 2 within the fair value hierarchy since it is determined based upon significant inputs observable in the market, including interest rates on recent financing transactions to entities with a credit rating similar to ours.