10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

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

For the quarterly period ended October 3, 2015

or

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

For the transition period from                      to                     .

Commission File Number: 01-14010

Waters Corporation

(Exact name of registrant as specified in its charter)

Delaware	13-3668640
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

34 Maple Street

Milford, Massachusetts 01757

(Address, including zip code, of principal executive offices)

(508) 478-2000

(Registrant’s telephone number, including area code)

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  x    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 (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  x    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.

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

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

Indicate the number of shares outstanding of the registrant’s common stock as of October 30, 2015: 81,663,790

WATERS CORPORATION AND SUBSIDIARIES

QUARTERLY REPORT ON FORM 10-Q

INDEX

		Page
PART I	FINANCIAL INFORMATION
Item 1.	Financial Statements
	Consolidated Balance Sheets (unaudited) as of October 3, 2015 and December 31, 2014		1
	Consolidated Statements of Operations (unaudited) for the three months ended October 3, 2015 and September 27, 2014		2
	Consolidated Statements of Operations (unaudited) for the nine months ended October 3, 2015 and September 27, 2014		3
	Consolidated Statements of Comprehensive Income (unaudited) for the three and nine months ended October 3, 2015 and September 27, 2014		4
	Consolidated Statements of Cash Flows (unaudited) for the nine months ended October 3, 2015 and September 27, 2014		5
	Condensed Notes to Consolidated Financial Statements (unaudited)		6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		20
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		28
Item 4.	Controls and Procedures		28
PART II	OTHER INFORMATION
Item 1.	Legal Proceedings		29
Item 1A.	Risk Factors		29
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		29
Item 6.	Exhibits		30
	Signature		31

WATERS CORPORATION AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(IN THOUSANDS, EXCEPT PER SHARE DATA)

(unaudited)

	October 3, 2015			December 31, 2014
ASSETS
Current assets:
Cash and cash equivalents	$	459,518		$	422,177
Investments		1,851,216			1,633,211
Accounts receivable, less allowances for doubtful accounts and sales returns of $6,651 and $7,179 at October 3, 2015 and December 31, 2014, respectively		416,311			433,616
Inventories		281,786			246,430
Other current assets		85,016			118,302
Total current assets		3,093,847			2,853,736
Property, plant and equipment, net		325,554			321,583
Intangible assets, net		222,806			232,371
Goodwill		352,151			354,838
Other assets		126,886			115,406
Total assets	$	4,121,244		$	3,877,934
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Notes payable and debt	$	175,176		$	225,243
Accounts payable		61,710			65,704
Accrued employee compensation		39,809			47,198
Deferred revenue and customer advances		157,992			129,706
Accrued income taxes		5,388			15,143
Accrued warranty		13,107			13,266
Other current liabilities		82,772			85,335
Total current liabilities		535,954			581,595
Long-term liabilities:
Long-term debt		1,455,000			1,240,000
Long-term portion of retirement benefits		77,353			85,230
Long-term income tax liabilities		19,482			20,397
Other long-term liabilities		64,899			56,046
Total long-term liabilities		1,616,734			1,401,673
Total liabilities		2,152,688			1,983,268
Commitments and contingencies (Notes 6, 7 and 10)
Stockholders’ equity:
Preferred stock, par value $0.01 per share, 5,000 shares authorized, none issued at October 3, 2015 and December 31, 2014		—			—
Common stock, par value $0.01 per share, 400,000 shares authorized, 157,252 and 156,716 shares issued, 81,654 and 83,147 shares outstanding at October 3, 2015 and December 31, 2014, respectively		1,573			1,567
Additional paid-in capital		1,451,601			1,392,494
Retained earnings		4,712,512			4,394,513
Treasury stock, at cost, 75,598 and 73,569 shares at October 3, 2015 and December 31, 2014, respectively		(4,070,314	)		(3,815,203	)
Accumulated other comprehensive loss		(126,816	)		(78,705	)
Total stockholders’ equity		1,968,556			1,894,666
Total liabilities and stockholders’ equity	$	4,121,244		$	3,877,934

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

1

WATERS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS

(IN THOUSANDS, EXCEPT PER SHARE DATA)

(unaudited)

	Three Months Ended
	October 3, 2015			September 27, 2014
Product sales	$	336,933		$	331,165
Service sales		163,645			162,000
Total net sales		500,578			493,165
Cost of product sales		138,014			133,868
Cost of service sales		68,790			68,354
Total cost of sales		206,804			202,222
Gross profit		293,774			290,943
Selling and administrative expenses		124,655			122,226
Research and development expenses		30,703			27,279
Purchased intangibles amortization		2,573			2,725
Operating income		135,843			138,713
Interest expense		(9,017	)		(9,062	)
Interest income		2,736			1,762
Income from operations before income taxes		129,562			131,413
Provision for income taxes		13,281			17,916
Net income	$	116,281		$	113,497
Net income per basic common share	$	1.42		$	1.36
Weighted-average number of basic common shares		82,036			83,663
Net income per diluted common share	$	1.40		$	1.34
Weighted-average number of diluted common shares and equivalents		82,784			84,401

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

2

WATERS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS

(IN THOUSANDS, EXCEPT PER SHARE DATA)

(unaudited)

	Nine Months Ended
	October 3, 2015			September 27, 2014
Product sales	$	971,842		$	937,225
Service sales		483,880			468,249
Total net sales		1,455,722			1,405,474
Cost of product sales		398,168			387,646
Cost of service sales		206,589			204,148
Total cost of sales		604,757			591,794
Gross profit		850,965			813,680
Selling and administrative expenses		367,066			380,791
Research and development expenses		90,209			79,002
Purchased intangibles amortization		7,547			8,018
Operating income		386,143			345,869
Interest expense		(27,038	)		(24,522	)
Interest income		7,576			4,920
Income from operations before income taxes		366,681			326,267
Provision for income taxes		48,682			45,939
Net income	$	317,999		$	280,328
Net income per basic common share	$	3.85		$	3.32
Weighted-average number of basic common shares		82,552			84,375
Net income per diluted common share	$	3.82		$	3.29
Weighted-average number of diluted common shares and equivalents		83,305			85,162

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

3

WATERS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(IN THOUSANDS)

(unaudited)

	Three Months Ended						Nine Months Ended
	October 3, 2015			September 27, 2014			October 3, 2015			September 27, 2014
Net income	$	116,281		$	113,497		$	317,999		$	280,328
Other comprehensive loss:
Foreign currency translation		(10,931	)		(48,671	)		(53,322	)		(16,071	)
Unrealized gains (losses) on investments before income taxes		1,814			(645	)		2,397			91
Income tax (expense) benefit		(68	)		42			(97	)		11
Unrealized gains (losses) on investments, net of tax		1,746			(603	)		2,300			102
Retirement liability adjustment before reclassifications		(511	)		—			1,070			(931	)
Amounts reclassified to selling and administrative expenses		1,478			516			3,320			1,548
Retirement liability adjustment before income taxes		967			516			4,390			617
Income tax expense		(325	)		(400	)		(1,479	)		(603	)
Retirement liability adjustment, net of tax		642			116			2,911			14
Other comprehensive loss		(8,543	)		(49,158	)		(48,111	)		(15,955	)
Comprehensive income	$	107,738		$	64,339		$	269,888		$	264,373

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

4

WATERS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(IN THOUSANDS)

(unaudited)

	Nine Months Ended
	October 3, 2015			September 27, 2014
Cash flows from operating activities:
Net income	$	317,999		$	280,328
Adjustments to reconcile net income to net cash provided by operating activities:
Provisions for doubtful accounts on accounts receivable		766			2,051
Provisions on inventory		3,683			3,603
Stock-based compensation		24,957			24,460
Deferred income taxes		1,821			(9,151	)
Depreciation		33,202			34,661
Amortization of intangibles		33,693			35,889
Building impairment		—			4,093
Gain on sale of building		(1,377	)		—
Change in operating assets and liabilities, net of acquisitions:
Decrease in accounts receivable		6,121			23,588
Increase in inventories		(39,171	)		(36,812	)
Decrease (increase) in other current assets		2,183			(9,348	)
Increase in other assets		(11,614	)		(10,949	)
Increase in accounts payable and other current liabilities		4,234			3,887
Increase in deferred revenue and customer advances		31,099			23,737
Decrease in other liabilities		(954	)		(20,111	)
Net cash provided by operating activities		406,642			349,926
Cash flows from investing activities:
Additions to property, plant, equipment and software capitalization		(72,250	)		(70,437	)
Business acquisitions, net of cash acquired		(9,408	)		(23,672	)
Payments for intellectual property licenses		—			(1,800	)
Purchases of investments		(1,467,078	)		(1,731,043	)
Maturities and sales of investments		1,249,073			1,504,528
Proceeds from sale of building		5,154			—
Net cash used in investing activities		(294,509	)		(322,424	)
Cash flows from financing activities:
Proceeds from debt issuances		285,073			336,430
Payments on debt		(120,140	)		(229,770	)
Payments of debt issuance costs		(2,382	)		(1,400	)
Proceeds from stock plans		28,948			43,287
Purchases of treasury shares		(255,111	)		(261,570	)
Excess tax benefit related to stock option plans		5,689			8,605
Proceeds from (payments for) debt swaps and other derivative contracts		5			(366	)
Net cash used in financing activities		(57,918	)		(104,784	)
Effect of exchange rate changes on cash and cash equivalents		(16,874	)		(6,546	)
Increase (decrease) in cash and cash equivalents		37,341			(83,828	)
Cash and cash equivalents at beginning of period		422,177			440,796
Cash and cash equivalents at end of period	$	459,518		$	356,968

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

5

WATERS CORPORATION AND SUBSIDIARIES

CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

1 Basis of Presentation and Summary of Significant Accounting Policies

Waters Corporation (“Waters^®” or the “Company”) is an analytical instrument manufacturer that primarily designs, manufactures, sells and services, through its Waters Division, high performance liquid chromatography (“HPLC”), ultra performance liquid chromatography (“UPLC^®” and together with HPLC, referred to as “LC”) and mass spectrometry (“MS”) technology systems and support products, including chromatography columns, other consumable products and comprehensive post-warranty service plans. These systems are complementary products that are frequently employed together (“LC-MS”) and sold as integrated instrument systems using a common software platform. LC is a standard technique and is utilized in a broad range of industries to detect, identify, monitor and measure the chemical, physical and biological composition of materials, and to purify a full range of compounds. MS instruments are used in drug discovery and development, including clinical trial testing, the analysis of proteins in disease processes (known as “proteomics”), nutritional safety analysis and environmental testing. LC-MS instruments combine a liquid phase sample introduction and separation system with mass spectrometric compound identification and quantification. Through its TA Division (“TA^®”), the Company primarily designs, manufactures, sells and services thermal analysis, rheometry and calorimetry instruments, which are used in predicting the suitability and stability of fine chemicals, pharmaceuticals, water, polymers, metals and viscous liquids for various industrial, consumer goods and healthcare products, as well as for life science research. The Company is also a developer and supplier of software-based products that interface with the Company’s instruments, as well as other suppliers’ instruments, and are typically purchased by customers as part of the instrument system.

The Company’s interim fiscal quarter typically ends on the thirteenth Saturday of each quarter. Since the Company’s fiscal year end is December 31, the first and fourth fiscal quarters may have more or less than thirteen complete weeks. The Company’s third fiscal quarters for 2015 and 2014 ended on October 3, 2015 and September 27, 2014, respectively.

The accompanying unaudited interim consolidated financial statements have been prepared in accordance with the instructions to the Quarterly Report on Form 10-Q and do not include all of the information and note disclosures required by generally accepted accounting principles (“GAAP”) in the United States of America. The consolidated financial statements include the accounts of the Company and its subsidiaries, most of which are wholly owned. All material inter-company balances and transactions have been eliminated.

The preparation of consolidated financial statements in conformity with GAAP requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent liabilities at the dates of the financial statements. Actual amounts may differ from these estimates under different assumptions or conditions.

It is management’s opinion that the accompanying interim consolidated financial statements reflect all adjustments (which are normal and recurring) that are necessary for a fair statement of the results for the interim periods. The interim consolidated financial statements should be read in conjunction with the consolidated financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014, as filed with the U.S. Securities and Exchange Commission on February 27, 2015.

Cash, Cash Equivalents and Investments

Cash equivalents represent highly liquid investments, with original maturities of 90 days or less, while investments with longer maturities are classified as investments. The Company maintains cash balances in various operating accounts in excess of federally insured limits, and in foreign subsidiary accounts in currencies other than U.S. dollars. As of October 3, 2015 and December 31, 2014, $2,275 million out of $2,311 million and $1,971 million out of $2,055 million, respectively, of the Company’s total cash, cash equivalents and investments were held by foreign subsidiaries and may be subject to material tax effects on distribution to U.S. legal entities.

Property, Plant and Equipment

During the three and nine months ended September 27, 2014, the Company recorded a $4 million impairment charge related to a write-down in the fair value of a building in the U.K., which was designated as held for sale. The carrying value of the building was $4 million and was included in other current assets in the consolidated balance sheet at December 31, 2014. During the three months ended October 3, 2015, the Company sold the building for $5 million in cash, which resulted in a gain on the sale of $1 million.

6

CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (unaudited) – (Continued)

Fair Value Measurements

In accordance with the accounting standards for fair value measurements and disclosures, certain of the Company’s assets and liabilities are measured at fair value on a recurring basis as of October 3, 2015 and December 31, 2014. Fair values determined by Level 1 inputs utilize observable data, such as quoted prices in active markets. Fair values determined by Level 2 inputs utilize data points other than quoted prices in active markets that are observable either directly or indirectly. Fair values determined by Level 3 inputs utilize unobservable data points for which there is little or no market data, which require the reporting entity to develop its own assumptions.

The following table represents the Company’s assets and liabilities measured at fair value on a recurring basis at October 3, 2015 (in thousands):

	Total at October 3, 2015		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
U.S. Treasury securities	$	629,048	$	—	$	629,048	$	—
Corporate debt securities		1,233,772		—		1,233,772		—
Time deposits		80,931		—		80,931		—
Equity securities		147		—		147		—
Other cash equivalents		29,000		—		29,000		—
Waters 401(k) Restoration Plan assets		33,842		—		33,842		—
Foreign currency exchange contracts		38		—		38		—
Total	$	2,006,778	$	—	$	2,006,778	$	—
Liabilities:
Contingent consideration	$	4,116	$	—	$	—	$	4,116
Foreign currency exchange contracts		575		—		575		—
Total	$	4,691	$	—	$	575	$	4,116

7

CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (unaudited) – (Continued)

The following table represents the Company’s assets and liabilities measured at fair value on a recurring basis at December 31, 2014 (in thousands):

	Total at December 31, 2014		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
U.S. Treasury securities	$	626,772	$	—	$	626,772	$	—
Foreign government securities		24,998		—		24,998		—
Corporate debt securities		984,105		—		984,105		—
Time deposits		64,240		—		64,240		—
Equity securities		147		—		147		—
Other cash equivalents		29,000		—		29,000		—
Waters 401(k) Restoration Plan assets		33,935		—		33,935		—
Foreign currency exchange contracts		123		—		123		—
Total	$	1,763,320	$	—	$	1,763,320	$	—
Liabilities:
Contingent consideration	$	3,612	$	—	$	—	$	3,612
Foreign currency exchange contracts		651		—		651		—
Total	$	4,263	$	—	$	651	$	3,612

The fair values of the Company’s cash equivalents, investments, 401(k) restoration plan assets and foreign currency exchange contracts are determined through market and observable sources and have been classified as Level 2. These assets and liabilities have been initially valued at the transaction price and subsequently valued, typically utilizing third-party pricing services. The pricing services use many inputs to determine value, including reportable trades, benchmark yields, credit spreads, broker/dealer quotes, current spot rates and other industry and economic events. The Company validates the prices provided by third-party pricing services by reviewing their pricing methods and obtaining market values from other pricing sources. After completing these validation procedures, the Company did not adjust or override any fair value measurements provided by third-party pricing services as of October 3, 2015 and December 31, 2014.

Fair Value of Contingent Consideration

The fair value of the Company’s liability for contingent consideration related to the July 2014 acquisition of Medimass Research, Development and Service Kft. is determined using a probability-weighted discounted cash flow model, which uses significant unobservable inputs, and has been classified as Level 3. Subsequent changes in the fair value of the contingent consideration liability are recorded in the results of operations. The fair value of the contingent consideration liability associated with future earnout payments is based on several factors, including the development of future products, estimated sales of those products and a discount rate reflective of the Company’s creditworthiness. A change in any of these unobservable inputs can significantly change the fair value of the contingent consideration. Although there is no contractual limit, the fair value of future contingent consideration payments was estimated to be approximately $4 million at both October 3, 2015 and December 31, 2014, based on the Company’s best estimate, as the earnout is based on future sales of certain products through 2034. There have been no changes in significant assumptions since December 31, 2014 and the change in fair value since then is primarily due to change in time value of money.

Fair Value of Other Financial Instruments

The Company’s cash, accounts receivable, accounts payable and variable interest rate debt are recorded at cost, which approximates fair value. The carrying value of the Company’s fixed interest rate debt was $450 million and $550 million at October 3, 2015 and December 31, 2014, respectively. The fair value of the Company’s fixed interest rate debt was estimated using discounted cash flow models, based on estimated current rates offered for similar debt under current market conditions for the Company. The fair value of the Company’s fixed interest rate debt was estimated to be $456 million and $558 million at October 3, 2015 and December 31, 2014, respectively, using Level 2 inputs.

8

CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (unaudited) – (Continued)

Derivative Transactions

The Company enters into foreign currency exchange contracts to manage exposures to changes in foreign currency exchange rates on certain inter-company balances and short-term assets and liabilities. Principal hedged currencies include the Euro, Japanese yen, British pound and Brazilian real. At October 3, 2015 and December 31, 2014, the Company held forward foreign exchange contracts with notional amounts totaling $107 million and $110 million, respectively.

The Company’s foreign currency exchange contracts included in the consolidated balance sheets are classified as follows (in thousands):

	October 3, 2015		December 31, 2014
Other current assets	$	38	$	123
Other current liabilities	$	575	$	651

The following is a summary of the activity in cost of sales in the statements of operations related to the forward foreign exchange contracts (in thousands):

	Three Months Ended						Nine Months Ended
	October 3, 2015			September 27, 2014			October 3, 2015			September 27, 2014
Realized gains (losses) on closed contracts	$	810		$	(266	)	$	5		$	(366	)
Unrealized losses on open contracts		(71	)		(43	)		(9	)		(1,000	)
Cumulative net pre-tax gains (losses)	$	739		$	(309	)	$	(4	)	$	(1,366	)

Stockholders’ Equity

In May 2014, the Company’s Board of Directors authorized the Company to repurchase up to $750 million of its outstanding common stock over a three-year period and authorized the extension of the May 2012 program until May 2015. During the nine months ended October 3, 2015 and September 27, 2014, the Company repurchased 2.0 million and 2.4 million shares of the Company’s outstanding common stock at a cost of $249 million and $255 million, respectively, under the May 2012 and May 2014 authorizations. As of October 3, 2015, the Company repurchased an aggregate of 7.6 million shares at a cost of $750 million under the May 2012 repurchase program, which is now completed. The Company has a total of $520 million authorized for future repurchases under the May 2014 plan. In addition, the Company repurchased $6 million and $7 million of common stock related to the vesting of restricted stock units during the nine months ended October 3, 2015 and September 27, 2014, respectively. The Company believes that it has the financial flexibility to fund these share repurchases given current cash levels and debt borrowing capacity, as well as to invest in research, technology and business acquisitions to further grow the Company’s sales and profits.

Product Warranty Costs

The Company accrues estimated product warranty costs at the time of sale, which are included in cost of sales in the consolidated statements of operations. While the Company engages in extensive product quality programs and processes, including actively monitoring and evaluating the quality of its component suppliers, the Company’s warranty obligation is affected by product failure rates, material usage and service delivery costs incurred in correcting a product failure. The amount of the accrued warranty liability is based on historical information, such as past experience, product failure rates, number of units repaired and estimated costs of material and labor. The liability is reviewed for reasonableness at least quarterly.

9

CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (unaudited) – (Continued)

The following is a summary of the activity of the Company’s accrued warranty liability for the nine months ended October 3, 2015 and September 27, 2014 (in thousands):

	Balance at Beginning of Period		Accruals for Warranties		Settlements Made			Balance at End of Period
Accrued warranty liability:
October 3, 2015	$	13,266	$	5,834	$	(5,993	)	$	13,107
September 27, 2014	$	12,962	$	5,292	$	(5,773	)	$	12,481

Subsequent Events

The Company did not have any material subsequent events.

2 Marketable Securities

The Company’s marketable securities within cash equivalents and investments included in the consolidated balance sheets are detailed as follows (in thousands):

	October 3, 2015
	Amortized Cost		Unrealized Gain		Unrealized Loss			Fair Value
U.S. Treasury securities	$	627,630	$	1,465	$	(47	)	$	629,048
Corporate debt securities		1,233,267		895		(390	)		1,233,772
Time deposits		80,931		—		—			80,931
Equity securities		77		70		—			147
Total	$	1,941,905	$	2,430	$	(437	)	$	1,943,898
Amounts included in:
Cash equivalents	$	92,682	$	—	$	—		$	92,682
Investments		1,849,223		2,430		(437	)		1,851,216
Total	$	1,941,905	$	2,430	$	(437	)	$	1,943,898
	December 31, 2014
	Amortized Cost		Unrealized Gain		Unrealized Loss			Fair Value
U.S. Treasury securities	$	626,683	$	246	$	(157	)	$	626,772
Foreign government securities		24,998		—		—			24,998
Corporate debt securities		984,668		125		(688	)		984,105
Time deposits		64,240		—		—			64,240
Equity securities		77		70		—			147
Total	$	1,700,666	$	441	$	(845	)	$	1,700,262
Amounts included in:
Cash equivalents	$	67,051	$	—	$	—		$	67,051
Investments		1,633,615		441		(845	)		1,633,211
Total	$	1,700,666	$	441	$	(845	)	$	1,700,262

10

CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (unaudited) – (Continued)

The estimated fair value of marketable debt securities by maturity date is as follows (in thousands):

	October 3, 2015		December 31, 2014
Due in one year or less	$	1,063,640	$	872,872
Due after one year through three years		799,180		763,003
Total	$	1,862,820	$	1,635,875

3 Inventories

Inventories are classified as follows (in thousands):

	October 3, 2015		December 31, 2014
Raw materials	$	94,226	$	84,952
Work in progress		21,814		16,749
Finished goods		165,746		144,729
Total inventories	$	281,786	$	246,430

4 Acquisitions

The Company accounts for business acquisitions under the accounting standards for business combinations. The results of each acquisition have been included in the Company’s consolidated results as of the acquisition date and the purchase price of an acquisition is allocated to tangible and intangible assets and assumed liabilities based on their estimated fair values. Any excess of the fair value consideration transferred over the estimated fair values of the net assets acquired is recognized as goodwill.

On May 22, 2015, the Company acquired the net assets of the ElectroForce^® business of the Bose Corporation (“ElectroForce”), a manufacturer of testing systems, for approximately $9 million in cash. ElectroForce’s core business is the manufacturing of dynamic mechanical testing systems used to characterize medical devices, biologic and engineered materials. The ElectroForce test instruments are based on unique motor designs that are quiet, energy-efficient, scalable and deliver high performance over a wide range of force and frequency. ElectroForce was acquired to expand the TA Division’s product offering into new markets, while leveraging the technology, infrastructure and customer bases of the combined organizations. The Company has allocated $4 million of the purchase price to intangible assets comprised of technology, customer relationships and trade name. The Company is amortizing the technology and customer relationships over ten years and five years, respectively. The remaining purchase price of $1 million was accounted for as goodwill, which is deductible for tax purposes.

The principal factor that resulted in recognition of goodwill in the acquisition of ElectroForce is that the purchase price was based, in part, on cash flow projections assuming the integration of any acquired technology, distribution channels and products with the Company’s products, which is of considerably greater value than utilizing the acquired company’s technology, customer access or products on a stand-alone basis. The goodwill also includes value assigned to assembled workforce, which cannot be recognized as an intangible asset.

In this acquisition, the sellers provided the Company with customary representations, warranties and indemnification, which would be settled in the future if and when a breach of the contractual representation or warranty condition occurs. The impact of the acquisition of ElectroForce on the Company’s revenues and net income since the acquisition date for the nine months ended October 3, 2015 was immaterial.

11

CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (unaudited) – (Continued)

The fair values of the assets and liabilities acquired were determined using various income-approach valuation techniques, which use Level 3 inputs. The following table presents the fair values as of the acquisition date, as determined by the Company, of 100% of the assets and liabilities owned and recorded in connection with the acquisition of ElectroForce (in thousands):

Accounts receivable and other current assets	$	1,520
Inventory		4,489
Property, plant and equipment		699
Intangible assets		3,700
Goodwill		1,118
Total assets acquired		11,526
Accrued expenses and other current liabilities		2,118
Cash consideration paid	$	9,408

5 Goodwill and Other Intangibles

The carrying amount of goodwill was $352 million and $355 million at October 3, 2015 and December 31, 2014, respectively. During the nine months ended October 3, 2015, the Company’s acquisition increased goodwill by $1 million (see Note 4) and the effect of foreign currency translation decreased goodwill by $4 million.

The Company’s intangible assets included in the consolidated balance sheets are detailed as follows (in thousands):

	October 3, 2015					December 31, 2014
	Gross Carrying Amount		Accumulated Amortization		Weighted- Average Amortization Period	Gross Carrying Amount		Accumulated Amortization		Weighted- Average Amortization Period
Capitalized software	$	335,517	$	202,468	7 years	$	334,280	$	196,477	7 years
Purchased intangibles		163,144		117,632	11 years		163,855		112,279	11 years
Trademarks and IPR&D		13,967		—			14,095		—
Licenses		5,499		3,995	6 years		5,371		3,634	6 years
Patents and other intangibles		61,773		32,999	8 years		56,513		29,353	8 years
Total	$	579,900	$	357,094	8 years	$	574,114	$	341,743	8 years

During the nine months ended October 3, 2015, the Company acquired $4 million of purchased intangibles as a result of the acquisition of ElectroForce (see Note 4). During the nine months ended October 3, 2015, the effect of foreign currency translation decreased the gross carrying value of intangible assets and accumulated amortization for intangible assets by $31 million and $18 million, respectively. Amortization expense for intangible assets was $12 million for both the three months ended October 3, 2015 and September 27, 2014. Amortization expense for intangible assets was $34 million and $36 million for the nine months ended October 3, 2015 and September 27, 2014, respectively. Amortization expense for intangible assets is estimated to be approximately $44 million per year for each of the next five years.

6 Debt

In June 2013, the Company entered into a credit agreement that provides for a $1.1 billion revolving facility and a $300 million term loan facility. In April 2015, Waters entered into an amendment to this agreement (the “Amended Credit Agreement”). The Amended Credit Agreement provides for an increase of the revolving commitments from $1.1 billion to $1.3 billion and extends the maturity of the original credit agreement from June 25, 2018 until April 23, 2020. The Company plans to use future proceeds from the revolving facility for general corporate purposes.

The interest rates applicable to the Amended Credit Agreement are, at the Company’s option, equal to either the alternate base rate calculated daily (which is a rate per annum equal to the greatest of (a) the prime rate in effect on

12

CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (unaudited) – (Continued)

such day, (b) the federal funds effective rate in effect on such day plus 1/2% per annum, or (c) the adjusted LIBO rate on such day (or if such day is not a business day, the immediately preceding business day) for a deposit in U.S. dollars with a maturity of one month plus 1% per annum) or the applicable 1, 2, 3 or 6 month adjusted LIBO rate, in each case, plus an interest rate margin based upon the Company’s leverage ratio, which can range between 0 to 12.5 basis points for alternate base rate loans and between 80 basis points and 117.5 basis points for adjusted LIBO rate loans. The facility fee on the Amended Credit Agreement ranges between 7.5 basis points and 20 basis points. The Amended Credit Agreement requires that the Company comply with an interest coverage ratio test of not less than 3.50:1 as of the end of any fiscal quarter for any period of four consecutive fiscal quarters and a leverage ratio test of not more than 3.50:1 as of the end of any fiscal quarter. In addition, the Amended Credit Agreement includes negative covenants, affirmative covenants, representations and warranties and events of default that are customary for investment grade credit facilities.

At October 3, 2015, $125 million of the outstanding portion of the revolving facility was classified as short-term liabilities in the consolidated balance sheet due to the fact that the Company expects to repay this portion of the borrowing under the revolving line of credit within the next twelve months. The remaining $705 million of the outstanding portion of the revolving facility was classified as long-term liabilities in the consolidated balance sheet, as this portion is not expected to be repaid within the next twelve months.

As of October 3, 2015 and December 31, 2014, the Company had a total of $500 million and $600 million of outstanding senior unsecured notes, respectively. Interest on the fixed rate senior unsecured notes is payable semi-annually each year. Interest on the floating rate senior unsecured notes is payable quarterly. The Company may prepay all or some of the senior unsecured notes at any time in an amount not less than 10% of the aggregate principal amount outstanding, plus the applicable make-whole amount or prepayment premium for Series H senior unsecured notes. In the event of a change in control of the Company (as defined in the note purchase agreement), the Company may be required to prepay the senior unsecured notes at a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest. These senior unsecured notes require that the Company comply with an interest coverage ratio test of not less than 3.50:1 for any period of four consecutive fiscal quarters and a leverage ratio test of not more than 3.50:1 as of the end of any fiscal quarter. In addition, these senior unsecured notes include customary negative covenants, affirmative covenants, representations and warranties and events of default.

The Company had the following outstanding debt at October 3, 2015 and December 31, 2014 (in thousands):

	October 3, 2015		December 31, 2014
Foreign subsidiary lines of credit	$	176	$	243
Senior unsecured notes - Series A - 3.75%, due February 2015		—		100,000
Senior unsecured notes - Series C - 2.50%, due March 2016		50,000		—
Credit agreements		125,000		125,000
Total notes payable and debt		175,176		225,243
Senior unsecured notes - Series B - 5.00%, due February 2020		100,000		100,000
Senior unsecured notes - Series C - 2.50%, due March 2016		—		50,000
Senior unsecured notes - Series D - 3.22%, due March 2018		100,000		100,000
Senior unsecured notes - Series E - 3.97%, due March 2021		50,000		50,000
Senior unsecured notes - Series F - 3.40%, due June 2021		100,000		100,000
Senior unsecured notes - Series G - 3.92%, due June 2024		50,000		50,000
Senior unsecured notes - Series H - floating rate*, due June 2024		50,000		50,000
Credit agreements		1,005,000		740,000
Total long-term debt		1,455,000		1,240,000
Total debt	$	1,630,176	$	1,465,243

* Series H senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.25%.

As of October 3, 2015 and December 31, 2014, the Company had a total amount available to borrow of $468 million and $533 million, respectively, after outstanding letters of credit, under the credit agreements. The weighted-average interest rates applicable to the senior unsecured notes and credit agreement borrowings collectively were 2.06% and 2.31% at October 3, 2015 and December 31, 2014, respectively. As of October 3, 2015, the Company was in compliance with all debt covenants.

13

CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (unaudited) – (Continued)

The Company and its foreign subsidiaries also had available short-term lines of credit totaling $98 million and $88 million at October 3, 2015 and December 31, 2014, respectively, for the purpose of short-term borrowing and issuance of commercial guarantees. At October 3, 2015 and December 31, 2014, the weighted-average interest rates applicable to these short-term borrowings were 2.00% and 1.48%, respectively.

7 Income Taxes

The Company’s effective tax rate was 10.3% and 13.6% for the three months ended October 3, 2015 and September 27, 2014, respectively. The Company’s effective tax rate was 13.3% and 14.1% for the nine months ended October 3, 2015 and September 27, 2014, respectively. The differences between the effective tax rates for 2015 as compared to 2014 were primarily attributable to differences in the proportionate amounts of pre-tax income recognized in jurisdictions with different effective tax rates, and the recognition of a $2 million discrete benefit for additional U.K. tax credits in the three months ended October 3, 2015. In the third quarter of 2015, the Company entered into a new agreement with Singapore tax authorities that extended a 0% contractual tax rate through March 2021. The contractual tax rate is dependent upon achievement of certain contractual milestones, which the Company expects to meet. The current statutory tax rate in Singapore is 17%.

The Company accounts for its uncertain tax return reporting positions in accordance with the accounting standards for income taxes, which require financial statement reporting of the expected future tax consequences of uncertain tax reporting positions on the presumption that all concerned tax authorities possess full knowledge of those reporting positions, as well as all of the pertinent facts and circumstances, but prohibit any discounting of unrecognized tax benefits associated with those reporting positions for the time value of money.

The following is a summary of the activity of the Company’s unrecognized tax benefits for the nine months ended October 3, 2015 and September 27, 2014 (in thousands):

	October 3, 2015			September 27, 2014
Balance at the beginning of the period	$	19,596		$	24,716
Net changes in uncertain tax benefits		(861	)		(3,268	)
Balance at the end of the period	$	18,735		$	21,448

With limited exceptions, the Company is no longer subject to tax audit examinations in significant jurisdictions for the years ended on or before December 31, 2011. However, carryforward attributes that were generated in years beginning on or before January 1, 2012 may still be adjusted upon examination by tax authorities if the attributes are utilized. The Company continuously monitors the lapsing of statutes of limitations on potential tax assessments for related changes in the measurement of unrecognized tax benefits, related net interest and penalties, and deferred tax assets and liabilities. As of October 3, 2015, the Company expects to record additional reductions in the measurement of its unrecognized tax benefits and related net interest and penalties of approximately $5 million within the next twelve months due to the lapsing of statutes of limitations on potential tax assessments. The Company does not expect to record any other material reductions in the measurement of its unrecognized tax benefits within the next twelve months.

8 Stock-Based Compensation

The Company maintains various shareholder-approved, stock-based compensation plans which allow for the issuance of incentive or non-qualified stock options, stock appreciation rights, restricted stock or other types of awards (e.g. restricted stock units).

The Company accounts for stock-based compensation costs in accordance with the accounting standards for stock-based compensation, which require that all share-based payments to employees be recognized in the statements of operations based on their grant date fair values. The Company recognizes the expense using the straight-line attribution method. The stock-based compensation expense recognized in the consolidated statements of operations is based on awards that ultimately are expected to vest; therefore, the amount of expense has been reduced for estimated forfeitures. The stock-based compensation accounting standards require forfeitures to be estimated at the

14

CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (unaudited) – (Continued)

time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. Forfeitures were estimated based on historical experience. If actual results differ significantly from these estimates, stock-based compensation expense and the Company’s results of operations could be materially impacted. In addition, if the Company employs different assumptions in the application of these standards, the compensation expense that the Company records in the future periods may differ significantly from what the Company has recorded in the current period.

The consolidated statements of operations for the three and nine months ended October 3, 2015 and September 27, 2014 include the following stock-based compensation expense related to stock option awards, restricted stock, restricted stock unit awards and the employee stock purchase plan (in thousands):

	Three Months Ended				Nine Months Ended
	October 3, 2015		September 27, 2014		October 3, 2015		September 27, 2014
Cost of sales	$	668	$	633	$	1,990	$	2,061
Selling and administrative expenses		6,626		6,355		19,686		19,345
Research and development expenses		1,053		1,119		3,281		3,054
Total stock-based compensation	$	8,347	$	8,107	$	24,957	$	24,460

Stock Options

In determining the fair value of the stock options, the Company makes a variety of assumptions and estimates, including volatility measures, expected yields and expected stock option lives. The fair value of each option grant was estimated on the date of grant using the Black-Scholes option pricing model. The Company uses implied volatility on its publicly-traded options as the basis for its estimate of expected volatility. The Company believes that implied volatility is the most appropriate indicator of expected volatility because it is generally reflective of historical volatility and expectations of how future volatility will differ from historical volatility. The expected life assumption for grants is based on historical experience for the population of non-qualified stock option exercises. The risk-free interest rate is the yield currently available on U.S. Treasury zero-coupon issues with a remaining term approximating the expected term used as the input to the Black-Scholes model. The relevant data used to determine the value of the stock options granted during the nine months ended October 3, 2015 and September 27, 2014 are as follows:

	Nine Months Ended
Options Issued and Significant Assumptions Used to Estimate Option Fair Values	October 3, 2015			September 27, 2014
Options issued in thousands		115			32
Risk-free interest rate		1.4	%		1.9	%
Expected life in years		4			4
Expected volatility		0.291			0.245
Expected dividends		—			—
	Nine Months Ended
Weighted-Average Exercise Price and Fair Value of Options on the Date of Grant	October 3, 2015			September 27, 2014
Exercise price	$	121.33		$	99.22
Fair value	$	30.85		$	22.38

15

CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (unaudited) – (Continued)

The following table summarizes stock option activity for the plans for the nine months ended October 3, 2015 (in thousands, except per share data):

	Number of Shares			Price per Share	Weighted-Average Exercise Price
Outstanding at December 31, 2014		3,280		$  37.84 to $113.36	$	82.85
Granted		115		$113.88 to $134.37	$	121.33
Exercised		(342	)	$  37.84 to $  98.21	$	74.44
Canceled		(72	)	$  79.05 to $  87.06	$	83.25
Outstanding at October 3, 2015		2,981		$  38.09 to $134.37	$	85.29

Restricted Stock

During the nine months ended October 3, 2015, the Company granted ten thousand shares of restricted stock. The fair value of these awards on the grant date was $113.88 per share.

Restricted Stock Units

The following table summarizes the unvested restricted stock unit award activity for the nine months ended October 3, 2015 (in thousands, except for per share amounts):

	Shares			Weighted-Average Price
Unvested at December 31, 2014		533		$	94.38
Granted		150		$	119.46
Vested		(144	)	$	85.40
Forfeited		(12	)	$	99.75
Unvested at October 3, 2015		527		$	103.85

Restricted stock units are generally granted annually in February and vest in equal annual installments over a five-year period.

9 Earnings Per Share

Basic and diluted earnings per share (“EPS”) calculations are detailed as follows (in thousands, except per share data):

	Three Months Ended October 3, 2015
	Net Income (Numerator)		Weighted- Average Shares (Denominator)		Per Share Amount
Net income per basic common share	$	116,281		82,036	$	1.42
Effect of dilutive stock option, restricted stock and restricted stock unit securities		—		748		(0.02	)
Net income per diluted common share	$	116,281		82,784	$	1.40
	Three Months Ended September 27, 2014
	Net Income (Numerator)		Weighted- Average Shares (Denominator)		Per Share Amount
Net income per basic common share	$	113,497		83,663	$	1.36
Effect of dilutive stock option, restricted stock and restricted stock unit securities		—		738		(0.02	)
Net income per diluted common share	$	113,497		84,401	$	1.34

16

CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (unaudited) – (Continued)

	Nine Months Ended October 3, 2015
	Net Income (Numerator)		Weighted- Average Shares (Denominator)		Per Share Amount
Net income per basic common share	$	317,999		82,552	$	3.85
Effect of dilutive stock option, restricted stock and restricted stock unit securities		—		753		(0.03	)
Net income per diluted common share	$	317,999		83,305	$	3.82
	Nine Months Ended September 27, 2014
	Net Income (Numerator)		Weighted- Average Shares (Denominator)		Per Share Amount
Net income per basic common share	$	280,328		84,375	$	3.32
Effect of dilutive stock option, restricted stock and restricted stock unit securities		—		787		(0.03	)
Net income per diluted common share	$	280,328		85,162	$	3.29

For the three and nine months ended October 3, 2015, the Company had 0.6 million and 0.7 million stock options that were antidilutive, respectively, due to having higher exercise prices than the Company’s average stock price during the period. For both the three and nine months ended September 27, 2014, the Company had 0.5 million stock options that were antidilutive. These securities were not included in the computation of diluted EPS. The effect of dilutive securities was calculated using the treasury stock method.

10 Retirement Plans

The Company sponsors various retirement plans. The summary of the components of net periodic pension costs for the plans for the three and nine months ended October 3, 2015 and September 27, 2014 is as follows (in thousands):

	Three Months Ended
	October 3, 2015									September 27, 2014
	U.S. Pension Plans			U.S. Retiree Healthcare Plan			Non-U.S. Pension Plans			U.S. Pension Plans			U.S. Retiree Healthcare Plan			Non-U.S. Pension Plans
Service cost	$	—		$	(91	)	$	1,337		$	—		$	196		$	1,212
Interest cost		1,570			116			402			1,623			111			592
Expected return on plan assets		(2,223	)		(129	)		(410	)		(2,179	)		(112	)		(392	)
Net amortization:
Prior service cost (credit)		—			—			14			—			(13	)		(47	)
Net actuarial loss (gain)		1,101			—			273			692			(18	)		97
Net periodic pension cost (benefit)	$	448		$	(104	)	$	1,616		$	136		$	164		$	1,462

17

CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (unaudited) – (Continued)

	Nine Months Ended
	October 3, 2015									September 27, 2014
	U.S. Pension Plans			U.S. Retiree Healthcare Plan			Non-U.S. Pension Plans			U.S. Pension Plans			U.S. Retiree Healthcare Plan			Non-U.S. Pension Plans
Service cost	$	—		$	433		$	4,011		$	—		$	594		$	3,636
Interest cost		4,596			352			1,206			4,813			347			1,776
Expected return on plan assets		(6,859	)		(373	)		(1,230	)		(6,795	)		(326	)		(1,176	)
Net amortization:
Prior service cost (credit)		—			—			42			—			(39	)		(141	)
Net actuarial loss (gain)		2,459			—			819			1,662			(26	)		291
Net periodic pension cost (benefit)	$	196		$	412		$	4,848		$	(320	)	$	550		$	4,386

During the nine months ended October 3, 2015, the Company contributed $4 million to the Company’s U.S. pension plans. During fiscal year 2015, the Company expects to contribute a total of approximately $6 million to $11 million to the Company’s defined benefit plans.

11 Business Segment Information

The Company’s business activities, for which discrete financial information is available, are regularly reviewed and evaluated by the chief operating decision maker. As a result of this evaluation, the Company determined that it has two operating segments: Waters Division and TA Division.

Waters Division is primarily in the business of designing, manufacturing, distributing and servicing LC and MS instruments, columns and other chemistry consumables that can be integrated and used along with other analytical instruments. TA Division is primarily in the business of designing, manufacturing, distributing and servicing thermal analysis, rheometry and calorimetry instruments. The Company’s two divisions are its operating segments and each has similar economic characteristics; product processes; products and services; types and classes of customers; methods of distribution and regulatory environments. Because of these similarities, the two segments have been aggregated into one reporting segment for financial statement purposes. Please refer to the consolidated financial statements for financial information regarding the one reportable segment of the Company.

Net sales for the Company’s products and services are as follows for the three and nine months ended October 3, 2015 and September 27, 2014 (in thousands):

	Three Months Ended				Nine Months Ended
	October 3, 2015		September 27, 2014		October 3, 2015		September 27, 2014
Product net sales:
Waters instrument systems	$	219,196	$	213,122	$	625,276	$	595,670
Chemistry		78,173		77,853		234,095		229,633
TA instrument systems		39,564		40,190		112,471		111,922
Total product sales		336,933		331,165		971,842		937,225
Service net sales:
Waters service		148,206		146,038		438,104		423,155
TA service		15,439		15,962		45,776		45,094
Total service sales		163,645		162,000		483,880		468,249
Total net sales	$	500,578	$	493,165	$	1,455,722	$	1,405,474

18

CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (unaudited) – (Continued)

12 Recent Accounting Standard Changes and Developments

Recently Issued Accounting Standards

In May 2014, amended accounting guidance was issued regarding the recognition of revenue from contracts with customers. The objective of this guidance is to significantly enhance comparability and clarify principles of revenue recognition practices across entities, industries, jurisdictions and capital markets. This guidance was originally effective for annual and interim reporting periods beginning after December 15, 2016; however, the Financial Accounting Standards Board has amended the standard in August 2015 to delay the effective period by one year. Adoption prior to December 15, 2016 is not permitted. The Company is currently evaluating its adoption method and the potential impact that the adoption of this standard will have on the Company’s financial position, results of operations and cash flows.

In April 2015, accounting guidance was issued which requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability. Subsequently, the Securities and Exchange Commission staff announced that it will not object when debt issuance costs related to a revolving debt arrangement are presented as an asset regardless of whether or not there is an outstanding balance on the revolving debt arrangement. This guidance is effective for annual and interim reporting periods beginning after December 15, 2015 and early adoption is permitted. The Company is currently evaluating the potential impact that the adoption of this standard will have on the Company’s financial position, results of operations and cash flows.

In the third quarter of 2015, accounting guidance was issued which clarifies the measurement of inventory. The new guidance requires inventory to be measured at the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. This guidance is effective for annual and interim periods beginning after December 15, 2016. The Company is currently evaluating the potential impact that the adoption of this standard will have on the Company’s financial position, results of operations and cash flows.

19

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

Business and Financial Overview

The Company has two operating segments: the Waters Division and the TA Division (“TA^®”). The Waters Division’s products and services primarily consist of high performance liquid chromatography (“HPLC”), ultra performance liquid chromatography (“UPLC^®” and together with HPLC, referred to as “LC”), mass spectrometry (“MS”) and chemistry consumable products and related services. TA products and services primarily consist of thermal analysis, rheometry and calorimetry instrument systems and service sales. The Company’s products are used by life science (including pharmaceutical), biochemical, industrial, nutritional safety, environmental, academic and governmental customers. These customers use the Company’s products to detect, identify, monitor and measure the chemical, physical and biological composition of materials and to predict the suitability and stability of fine chemicals, pharmaceuticals, water, polymers, metals and viscous liquids in various industrial, consumer goods and healthcare products.

The Company’s operating results for the three and nine months ended October 3, 2015 and September 27, 2014 are as follows (in thousands):

	Three Months Ended									Nine Months Ended
	October 3, 2015			September 27, 2014			% Change			October 3, 2015			September 27, 2014			% Change
Product sales	$	336,933		$	331,165			2	%	$	971,842		$	937,225			4	%
Service sales		163,645			162,000			1	%		483,880			468,249			3	%
Total net sales		500,578			493,165			2	%		1,455,722			1,405,474			4	%
Total cost of sales		206,804			202,222			2	%		604,757			591,794			2	%
Gross profit		293,774			290,943			1	%		850,965			813,680			5	%
Gross profit as a % of sales		58.7	%		59.0	%					58.5	%		57.9	%
Selling and administrative expenses		124,655			122,226			2	%		367,066			380,791			(4	%)
Research and development expenses		30,703			27,279			13	%		90,209			79,002			14	%
Purchased intangibles amortization		2,573			2,725			(6	%)		7,547			8,018			(6	%)
Operating income		135,843			138,713			(2	%)		386,143			345,869			12	%
Operating income as a % of sales		27.1	%		28.1	%					26.5	%		24.6	%
Interest expense, net		(6,281	)		(7,300	)		(14	%)		(19,462	)		(19,602	)		(1	%)
Income from operations before income taxes		129,562			131,413			(1	%)		366,681			326,267			12	%
Provision for income tax expense		13,281			17,916			(26	%)		48,682			45,939			6	%
Net income	$	116,281		$	113,497			2	%	$	317,999		$	280,328			13	%
Net income per diluted common share	$	1.40		$	1.34			4	%	$	3.82		$	3.29			16	%

Sales in the third quarter of 2015 grew 2% for the quarter and 4% year-to-date, as the strong demand for the Company’s products and services were negatively affected by the foreign currency translation, which reduced sales growth by 7% for both the quarter and year-to-date. The negative impact on sales growth from foreign currency translation resulted primarily from the weakening of the Euro and Japanese yen against the U.S. dollar, which reduced Europe’s sales by 15% and 16% for the quarter and year-to-date, respectively, and reduced Japan’s sales by 14% and 15% for the quarter and year-to-date, respectively. The 2015 sales growth for both the quarter and year-to-date was driven by life science, industrial chemical and nutritional safety customers, particularly in the U.S. and Asia, excluding Japan. Acquisitions had a minimal impact on sales year-to-date. Year-to-date sales growth in 2015 also benefited by an estimated 1% from additional calendar days in the first nine months of 2015 as compared with the first nine months of 2014.

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In 2015, instrument system sales grew 2% and 4% for the quarter and year-to-date, respectively, and recurring revenues (combined chemistry consumable and service sales) increased 1% and 3%, respectively. Sales growth for both instrument systems and recurring revenues were negatively impacted by foreign currency translation. The increase in instrument system sales can be attributed to the higher customer demand for LC and LC-MS instrument systems and the increase in recurring revenues is primarily due to the increase in service sales resulting from a larger installed customer base.

The Company’s sales growth by customer end-market for both the quarter and year-to-date were negatively impacted by the European and Japanese foreign currency translation discussed above. Despite the negative effect of foreign currency on sales, the Company’s customer end-market sales were able to grow as follows:

• Sales to life science customers grew 2% and 5% for the quarter and year-to-date, respectively, with sales growth in all regions, except Europe and Japan. Year-to-date, life science customers had double-digit sales growth in all regions, except Europe and Japan.

• Combined sales to industrial chemical, nutritional safety and environmental customers increased by 5% for both the quarter and year-to-date. Sales in the quarter were strongest in Asia, excluding Japan, while year-to-date sales were driven by the U.S. and Asia, excluding Japan.

• Combined global sales to governmental and academic customers declined by 5% and 2% for the quarter and year-to-date, respectively. In the quarter, sales in the U.S. and China grew at a double-digit rate and Japan’s sales grew 8%, while sales to all other regions declined. Year-to-date sales increased in both the U.S. and China but declined in all other regions.

The increase in gross profit dollars for both the quarter and year-to-date was primarily a result of higher sales volumes. In the third quarter, gross profit margin percentage declined slightly as the favorable change in sales mix, resulting from higher margin instrument system sales, was offset by unfavorable foreign currency translation on sales. The year-to-date gross profit margin percentage was higher as a result of leverage achieved on higher sales volumes and was offset somewhat by the unfavorable impact on sales from foreign currency translation. This negative impact on sales was mitigated partially by the favorable effects of foreign currency translation on operating costs of the Company’s European manufacturing and distribution facilities.

Based on current foreign currency exchange rates and forecasts, the Company estimates that the full year impact of foreign currency translation will negatively impact sales by approximately 6% and have a negative impact on gross profit.

Selling and administrative expenses increased 2% for the quarter and decreased 4% year-to-date. Foreign currency translation decreased selling and administrative expenses in the quarter and year-to-date by 9% and 8%, respectively. These reductions in expenses were somewhat offset by $2 million of severance-related costs in the current quarter in connection with a reduction in workforce in Europe. Selling and administrative expenses in the prior year quarter included a $2 million award received from an arbitration settlement. In addition, year-to-date selling and administrative expenses in the prior year included $6 million of severance-related costs in connection with a reduction in workforce, primarily in the U.S., and a $4 million impairment charge related to a write-down in the fair value of a building held for sale in the U.K. This building was sold in the current quarter for $5 million in cash.

The increase in research and development expenses in both the quarter and year-to-date was primarily a result of increased spending on new products and the development of new technology initiatives, which was somewhat offset by a 5% decrease in expenses due to the favorable effects of foreign currency translation.

Net income per diluted share for both the quarter and year-to-date benefited from an increase in sales and fewer shares outstanding due to additional share repurchases. Foreign currency translation decreased net income per diluted share by approximately $0.20 in the quarter and approximately $0.44 year-to-date.

Year-to-date, net cash provided by operating activities was $407 million and $350 million in 2015 and 2014, respectively. The $57 million increase was primarily a result of higher sales volumes and the timing of payments to vendors and collection of receivables from customers, as well as the effect of additional days in the first quarter of 2015. Within cash flows used in investing activities, capital expenditures related to property, plant, equipment and software capitalization were $72 million and $70 million for 2015 and 2014, respectively.

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On May 22, 2015, the Company acquired the net assets of the ElectroForce^® business of the Bose Corporation (“ElectroForce”), for approximately $9 million in cash. ElectroForce is a manufacturer of dynamic mechanical testing systems used to characterize medical devices, biologic and engineered materials. This acquisition is not expected to have a significant impact on the Company’s sales and profits over the next twelve months.

Within cash flows used in financing activities, the Company received $29 million and $43 million of proceeds from stock plans in 2015 and 2014, respectively. Fluctuations in these amounts were primarily attributable to changes in the Company’s stock price. In May 2014, the Company’s Board of Directors authorized the Company to repurchase up to $750 million of its outstanding common stock over a three-year period and authorized the extension of the May 2012 program until May 2015. The Company repurchased $249 million and $255 million of the Company’s outstanding common stock in 2015 and 2014, respectively, under the May 2012 and May 2014 authorizations.

In April 2015, Waters entered into an amendment to the credit agreement dated June 2013. The amended credit agreement provides for an increase of the revolving commitments from $1.1 billion to $1.3 billion and extends the maturity of the original credit agreement from June 25, 2018 until April 23, 2020. The Company plans to use future proceeds from the revolving facility for general corporate purposes.

Results of Operations

Sales by Geography

Geographic sales information is presented below for the three and nine months ended October 3, 2015 and September 27, 2014 (in thousands):

	Three Months Ended							Nine Months Ended
	October 3, 2015		September 27, 2014		% change			October 3, 2015		September 27, 2014		% change
Net Sales:
United States	$	169,783	$	150,835		13	%	$	475,854	$	422,206		13	%
Europe		132,104		144,076		(8	%)		383,919		420,717		(9	%)
Asia:
China		64,356		56,010		15	%		193,472		162,357		19	%
Japan		36,369		41,595		(13	%)		109,048		125,570		(13	%)
Asia Other		67,174		63,024		7	%		198,476		171,277		16	%
Total Asia		167,899		160,629		5	%		500,996		459,204		9	%
Other		30,792		37,625		(18	%)		94,953		103,347		(8	%)
Total net sales	$	500,578	$	493,165		2	%	$	1,455,722	$	1,405,474		4	%

The increase in sales in the U.S. for the quarter and year-to-date was broad-based across major product lines and customer classes. Europe’s sales in local currency grew on increased demand from the Company’s life science, governmental and academic customers; however, Europe’s sales declined as a result of the negative effects of foreign currency translation, which reduced sales growth by 15% and 16% in the quarter and year-to-date, respectively. China’s sales growth was broad-based across all product lines and customer classes. Japan’s sales were negatively impacted by foreign currency translation, which decreased sales by 14% and 15% for the quarter and year-to-date, respectively. The increase in sales in both the quarter and year-to-date in the rest of Asia was driven by LC and LC-MS instrument systems and recurring revenues from life science, industrial chemical and nutritional safety customers. The decline in sales in the rest of the world was significantly attributed to a reduction in customer demand in Latin America caused by the strengthening of the U.S. dollar and the weak Brazilian economy for both the quarter and year-to-date.

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Waters Division Net Sales

Net sales for the Waters Division’s products and services are as follows for the three and nine months ended October 3, 2015 and September 27, 2014 (in thousands):

	Three Months Ended
	October 3, 2015		% of Total			September 27, 2014		% of Total			% change
Waters instrument systems	$	219,196		49	%	$	213,122		49	%		3	%
Chemistry		78,173		18	%		77,853		18	%		—
Total Waters Division product sales		297,369		67	%		290,975		67	%		2	%
Waters service		148,206		33	%		146,038		33	%		1	%
Total Waters Division net sales	$	445,575		100	%	$	437,013		100	%		2	%
	Nine Months Ended
	October 3, 2015		% of Total			September 27, 2014		% of Total			% change
Waters instrument systems	$	625,276		48	%	$	595,670		48	%		5	%
Chemistry		234,095		18	%		229,633		18	%		2	%
Total Waters Division product sales		859,371		66	%		825,303		66	%		4	%
Waters service		438,104		34	%		423,155		34	%		4	%
Total Waters Division net sales	$	1,297,475		100	%	$	1,248,458		100	%		4	%

Waters instrument system sales (LC and LC-MS) increased in the quarter and year-to-date, primarily due to stronger demand for instrument systems from life science, industrial chemical and nutritional safety customers. The increase in recurring revenues for both the quarter and year-to-date primarily resulted from a combination of a higher utilization rate of installed instrument systems and a higher base of installed instruments. In addition, the first nine months of 2015 had additional calendar days as compared with the first nine months of 2014. The effect of foreign currency translation decreased sales for the Waters Division by 7% and 8% for the quarter and year-to-date, respectively.

Waters Division sales increased 13% and 14% in the U.S. for the quarter and year-to-date, respectively. Europe sales decreased 7% and 8% for the quarter and year-to-date, respectively, primarily due to the negative effect of foreign currency translation, which decreased sales by 16% and 17%, respectively. Total Asia sales increased 5% and 9% for the quarter and year-to-date, respectively, with sales in China increasing 15% and 19%, respectively. Japan sales decreased 11% and 13% in the quarter and year-to-date, respectively, primarily due to the effects of foreign currency translation, while sales in the rest of Asia increased 7% and 15%. Sales in the rest of the world decreased 17% and 8% in the quarter and year-to-date, respectively, on lower sales in Latin America and the negative effect of foreign currency translation.

TA Division Net Sales

Net sales for the TA Division’s products and services are as follows for the three and nine months ended October 3, 2015 and September 27, 2014 (in thousands):

	Three Months Ended
	October 3, 2015		% of Total			September 27, 2014		% of Total			% change
TA instrument systems	$	39,564		72	%	$	40,190		72	%		(2	%)
TA service		15,439		28	%		15,962		28	%		(3	%)
Total TA Division net sales	$	55,003		100	%	$	56,152		100	%		(2	%)

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	Nine Months Ended
	October 3, 2015		% of Total			September 27, 2014		% of Total			% change
TA instrument systems	$	112,471		71	%	$	111,922		71	%		—
TA service		45,776		29	%		45,094		29	%		2	%
Total TA Division net sales	$	158,247		100	%	$	157,016		100	%		1	%

TA instrument system and service sales decreased in the quarter due to the negative effect of foreign currency translation. TA service sales increased year-to-date due to sales of service plans and billings to a higher installed base of customers. In addition, the first nine months of 2015 had additional calendar days as compared with the first nine months of 2014. The effect of foreign currency translation decreased TA’s total sales by 4% and 5% for the quarter and year-to-date, respectively. TA’s sales grew 9% and 4% in the U.S. for the quarter and year-to-date, respectively. TA had double-digit sales growth in China in both the quarter and year-to-date, which was offset by declines in Japan, primarily due to the negative effects of foreign currency translation. Sales growth in the rest of Asia was 2% and 23% for the quarter and year-to-date, respectively. Recent acquisitions added 5% and 3% to sales growth for the quarter and year-to-date, respectively.

Gross Profit

Gross profit increased 1% and 5% for the quarter and year-to-date, respectively, primarily as a result of benefits from sales mix, leverage achieved on higher sales volumes and the favorable effect of foreign currency translation on operating costs of the Company’s European manufacturing and distribution facilities. Gross profit as a percentage of sales was also impacted by the factors discussed above.

Gross profit as a percentage of sales is affected by many factors, including, but not limited to, foreign currency translation, product mix, price, product costs of instrument systems and amortization of software platforms. The Company expects that the impact of foreign currency translation will negatively affect gross profit for the remainder of 2015, based on current exchange rates.

Selling and Administrative Expenses

Selling and administrative expenses increased 2% for the quarter and decreased 4% year-to-date. Foreign currency translation decreased selling and administrative expenses in the quarter and year-to-date by 9% and 8%, respectively. These reductions in expenses were somewhat offset by $2 million of severance-related costs in the current quarter in connection with a reduction in workforce in Europe. Selling and administrative expenses in the prior year quarter included a $2 million award received from an arbitration settlement. In addition, year-to-date selling and administrative expenses in the prior year included $6 million of severance-related costs in connection with a reduction in workforce, primarily in the U.S., and a $4 million impairment charge related to a write-down in the fair value of a building held for sale in the U.K. This building was sold in the current quarter for $5 million in cash. As a percentage of net sales, selling and administrative expenses were 24.9% and 25.2% for the 2015 quarter and year-to-date, respectively, and 24.8% and 27.1% for the 2014 quarter and year-to-date, respectively.

Research and Development Expenses

Research and development expenses increased 13% and 14% for the quarter and year-to-date, respectively, primarily as a result of additional headcount, merit compensation and costs associated with new products and the development of new technology initiatives. These increases were somewhat offset by favorable effects of foreign currency translation, which lowered the research and development expense growth rate by 5%.

Interest Expense, Net

The decrease in net interest expense for both the quarter and year-to-date was primarily attributable to increased income earned on an increase in average cash, cash equivalents and investments.

Provision for Income Taxes

The four principal jurisdictions in which the Company manufactures are the U.S., Ireland, the United Kingdom and Singapore, where the marginal effective tax rates were approximately 37.5%, 12.5%, 20.25% and 0%, respectively, as of October 3, 2015. In the third quarter of 2015, the Company entered into a new agreement with Singapore tax authorities that extended a 0% contractual tax rate through March 2021. The contractual tax rate is dependent upon achievement of certain contractual milestones, which the Company expects to meet. The current statutory tax rate in Singapore is 17%. The Company’s effective tax rate is influenced by many significant factors, including, but not

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limited to, the wide range of income tax rates in jurisdictions in which the Company operates; sales volumes and profit levels in each tax jurisdiction; changes in tax laws, tax rates and policies; the outcome of various ongoing tax audit examinations; and the impact of foreign currency transactions and translation. As a result of variability in these factors, the Company’s effective tax rates in the future may not be similar to the effective tax rates for the current or prior year.

The Company’s effective tax rate for the quarter was 10.3% and 13.6% for 2015 and 2014, respectively. The Company’s effective tax rate year-to-date was 13.3% and 14.1% for 2015 and 2014, respectively. The differences between the effective tax rates for 2015 as compared to 2014 were primarily attributable to differences in the proportionate amounts of pre-tax income recognized in jurisdictions with different effective tax rates, and the recognition of a $2 million discrete benefit for additional U.K. credits in the current quarter.

Liquidity and Capital Resources

Condensed Consolidated Statements of Cash Flows (in thousands):

	Nine Months Ended
	October 3, 2015			September 27, 2014
Net income	$	317,999		$	280,328
Depreciation and amortization		66,895			70,550
Stock-based compensation		24,957			24,460
Deferred income taxes		1,821			(9,151	)
Change in accounts receivable		6,121			23,588
Change in inventories		(39,171	)		(36,812	)
Change in accounts payable and other current liabilities		4,234			3,887
Change in deferred revenue and customer advances		31,099			23,737
Other changes		(7,313	)		(30,661	)
Net cash provided by operating activities		406,642			349,926
Net cash used in investing activities		(294,509	)		(322,424	)
Net cash used in financing activities		(57,918	)		(104,784	)
Effect of exchange rate changes on cash and cash equivalents		(16,874	)		(6,546	)
Increase (decrease) in cash and cash equivalents	$	37,341		$	(83,828	)

Cash Flow from Operating Activities

Net cash provided by operating activities was $407 million and $350 million in the nine months ended October 3, 2015 and September 27, 2014, respectively. The changes within net cash provided by operating activities in 2015 as compared to 2014 include the following significant changes in the sources and uses of net cash provided by operating activities, aside from the increase in net income:

• The change in accounts receivable in 2015 compared to 2014 was primarily attributable to timing of shipments and payments made by customers. Days-sales-outstanding (“DSO”) increased to 76 days at October 3, 2015 from 73 days at September 27, 2014.

• The change in inventory in both 2015 and 2014 is primarily attributable to the additional inventory ramp up for new products launched during the second half of this year.

• The 2015 and 2014 change in accounts payable and other current liabilities was a result of timing of payments to vendors.

• Net cash provided from deferred revenue and customer advances in both 2015 and 2014 was a result of the higher installed base of customers renewing annual service contracts.

• Other changes were attributable to variation in the timing of various provisions, expenditures, prepaid income taxes and accruals in other current assets, other assets and other liabilities. In addition, the Company made one-time contributions totaling $21 million to certain Non-U.S. pension plans during 2014.

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Cash Used in Investing Activities

Year-to-date, net cash used in investing activities totaled $295 million and $322 million in 2015 and 2014, respectively. Additions to fixed assets and capitalized software were $72 million and $70 million year-to-date in 2015 and 2014, respectively. During 2015 and 2014, the Company purchased $1,467 million and $1,731 million of investments year-to-date, while $1,249 million and $1,505 million of investments matured, respectively. Business acquisitions, net of cash acquired, were $9 million and $24 million year-to-date in 2015 and 2014, respectively. In 2015, the Company received $5 million cash from the sale of a building in the U.K.

Cash Used in Financing Activities

In April 2015, Waters entered into an amendment to the credit agreement dated June 2013. The amended credit agreement provides for an increase of the revolving commitments from $1.1 billion to $1.3 billion and extends the maturity of the original credit agreement from June 25, 2018 until April 23, 2020. The Company plans to use future proceeds from the revolving facility for general corporate purposes.

Year-to-date, the Company’s total debt borrowings increased by $165 million and $107 million in 2015 and 2014, respectively. As of October 3, 2015, the Company had a total of $1,630 million in outstanding debt, which consisted of $500 million in outstanding senior unsecured notes, $300 million borrowed under the term loan facility under the 2015 Credit Agreement and $830 million borrowed under revolving credit facility under the 2015 Credit Agreement. At October 3, 2015, $125 million of the outstanding portion of the revolving facility was classified as short-term liabilities in the consolidated balance sheet due to the fact that the Company expects to repay this portion of the borrowing under the revolving line of credit within the next twelve months. The remaining $705 million of the outstanding portion of the revolving facility was classified as long-term liabilities in the consolidated balance sheet, as this portion is not expected to be repaid within the next twelve months. As of October 3, 2015, the Company had a total amount available to borrow under the 2015 Credit Agreement of $468 million after outstanding letters of credit.

In May 2014, the Company’s Board of Directors authorized the Company to repurchase up to $750 million of its outstanding common stock over a three-year period and authorized the extension of the May 2012 program until May 2015. During the first nine months of 2015 and 2014, the Company repurchased 2.0 million and 2.4 million shares of the Company’s outstanding common stock at a cost of $249 million and $255 million, respectively, under the May 2012 and May 2014 authorizations. As of October 3, 2015, the Company had a total of $520 million authorized for future repurchases under the May 2014 plan. In addition, the Company repurchased $6 million and $7 million of common stock related to the vesting of restricted stock units during 2015 and 2014, respectively.

The Company received $29 million and $43 million of proceeds from the exercise of stock options and the purchase of shares pursuant to the Company’s employee stock purchase plan in 2015 and 2014, respectively.

The Company had cash, cash equivalents and investments of $2,311 million as of October 3, 2015. The majority of the Company’s cash, cash equivalents and investments are generated from foreign operations, with $2,275 million held by foreign subsidiaries at October 3, 2015. Due to the fact that most of the Company’s cash, cash equivalents and investments are held outside of the U.S., the Company must manage and maintain sufficient levels of cash flow in the U.S. to fund operations and capital expenditures, service debt interest, finance potential U.S. acquisitions and continue the authorized stock repurchase program in the U.S. These U.S. cash requirements are managed by the Company’s cash flow from U.S. operations and the use of the Company’s revolving credit facility.

Management believes, as of the date of this report, that its financial position, particularly in the U.S., along with expected future cash flows from earnings based on historical trends and the ability to raise funds from external sources and the borrowing capacity from existing, committed credit facilities, will be sufficient to service debt and fund working capital and capital spending requirements, authorized share repurchase amounts and potential acquisitions. In addition, there have been no recent significant changes to the Company’s financial position, nor are there any anticipated changes, to warrant a material adjustment related to indefinitely reinvested foreign earnings.

Contractual Obligations, Commercial Commitments, Contingent Liabilities and Dividends

A summary of the Company’s contractual obligations and commercial commitments is included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014, as filed with the U.S. Securities and Exchange Commission (“SEC”) on February 27, 2015. The Company reviewed its contractual obligations and commercial commitments as of October 3, 2015 and determined that there were no material changes from the information set forth in the Annual Report on Form 10-K, with the exception of the amended credit agreement as described in Note 6, “Debt.”

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From time to time, the Company and its subsidiaries are involved in various litigation matters arising in the ordinary course of business. The Company believes that it has meritorious arguments in its current litigation matters and that any outcome, either individually or in the aggregate, will not be material to the Company’s financial position or results of operations.

During the nine months ended October 3, 2015, the Company contributed $4 million to the Company’s U.S. pension plans. During fiscal year 2015, the Company expects to contribute a total of approximately $6 million to $11 million to the Company’s defined benefit plans.

The Company has not paid any dividends and has no plans, at this time, to pay any dividends in the future.

Critical Accounting Policies and Estimates

In the Company’s Annual Report on Form 10-K for the year ended December 31, 2014, as filed with the SEC on February 27, 2015, the Company’s most critical accounting policies and estimates upon which its financial status depends were identified as those relating to revenue recognition, loss provisions on accounts receivable and inventory, valuation of long-lived assets, intangible assets and goodwill, warranty, income taxes, pension and other postretirement benefit obligations, litigation, business combinations and asset acquisitions, valuation of contingent consideration and stock-based compensation. The Company reviewed its policies and determined that those policies remain the Company’s most critical accounting policies for the nine months ended October 3, 2015. The Company did not make any changes in those policies during the nine months ended October 3, 2015.

New Accounting Pronouncements

Please refer to Note 12, Recent Accounting Standards Changes and Developments, in the Condensed Notes to Consolidated Financial Statements.

Special Note Regarding Forward-Looking Statements

Certain of the statements in this Quarterly Report on Form 10-Q, including the information incorporated by reference herein, may 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 (the “Exchange Act”), with respect to future results and events, including any statements regarding, among other items, anticipated trends or growth in the Company’s business, including, but not limited to, the impact of foreign currency translation on financial results; development of products by acquired businesses; the growth rate of sales and research and development expenses; the impact of costs associated with developing new technologies and bringing these new technologies to market; the impact of new product launches and the associated costs, such as the amortization expense related to software platforms; geographic sales mix of business; development of products by acquired businesses and the amount of contingent payments to the sellers of an acquired business; anticipated expenses, including interest expense, capitalized software costs and effective tax rates; the impact and outcome of the Company’s various ongoing tax audit examinations; the achievement of contractual milestones to preserve foreign tax rates; the impact and outcome of litigation matters; the impact of the loss of intellectual property protection; the impact of new accounting standards and pronouncements; the adequacy of the Company’s supply chain and manufacturing capabilities and facilities; the impact of regulatory compliance; the Company’s expected cash flow, borrowing capacity, debt repayment and refinancing; the Company’s ability to fund working capital, capital expenditures, service debt, repay outstanding lines of credit, make authorized share repurchases, fund potential acquisitions and pay any adverse litigation or tax audit liabilities, particularly in the U.S.; future impairment charges; the Company’s contributions to defined benefit plans; the Company’s expectations regarding changes to its financial position; compliance with applicable environmental laws; and the impact of recent acquisitions on sales and earnings.

Many of these statements appear, in particular, under the heading “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part I, Item 2 of this Quarterly Report on Form 10-Q. Statements that are not statements of historical fact may be deemed forward-looking statements. You can identify these forward-looking statements by the use of the words “feels”, “believes”, “anticipates”, “plans”, “expects”, “may”, “will”, “would”, “intends”, “suggests”, “appears”, “estimates”, “projects”, “should” and similar expressions, whether in the negative or affirmative. These statements are subject to various risks and uncertainties, many of which are outside the control of the Company, including, and without limitation:

• The risks inherent in the transition of chief executive officer, as the Company’s new chief executive officer joined the Company in September 2015 upon the retirement of the former chief executive officer.

27

• Foreign exchange rate fluctuations that could adversely affect translation of the Company’s future sales, financial operating results and the condition of non-U.S. operations, especially when a currency weakens against the U.S. dollar.

• Current global economic, sovereign and political conditions and uncertainties, particularly regarding the effect of the Chinese government’s ongoing tightening of restrictions on procurement by government-funded customers; the Company’s ability to access capital and maintain liquidity in volatile market conditions of customers; changes in timing and demand by the Company’s customers and various market sectors, particularly if they should reduce capital expenditures or are unable to obtain funding, as in the cases of governmental, academic and research institutions; the effect of mergers and acquisitions on customer demand; and the Company’s ability to sustain and enhance service.

• Negative industry trends; changes in the competitive landscape as a result of changes in ownership, mergers and continued consolidation among the Company’s competitors; introduction of competing products by other companies and loss of market share; pressures on prices from customers or resulting from competition; regulatory, economic and competitive obstacles to new product introductions; lack of acceptance of new products; expansion of our business in developing markets; spending by certain end-markets; and ability to obtain alternative sources for components and modules; and the possibility that future sales of new products, which trigger contingent purchase payments, may exceed our expectations.

• Increased regulatory burdens as the Company’s business evolves, especially with respect to the Food and Drug Administration and Environmental Protection Agency, among others, as well as regulatory, environmental and logistical obstacles affecting the distribution of the Company’s products, completion of purchase order documentation by our customers and ability of customers to obtain letters of credit or other financing alternatives.

• Risks associated with lawsuits, particularly involving claims for infringement of patents and other intellectual property rights.

• The impact and costs incurred from changes in accounting principles and practices; the impact and costs of changes in statutory or contractual tax rates; shifts in taxable income in jurisdictions with different effective tax rates; and the outcome of and costs associated with ongoing and future tax audit examinations or changes in respective country legislation affecting the Company’s effective rates.

Certain of these and other factors are discussed under the heading “Risk Factors” under Part I, Item 1A of the Company’s Annual Report on Form 10-K for the year ended December 31, 2014, as filed with the SEC on February 27, 2015. Actual results or events could differ materially from the plans, intentions and expectations disclosed in the forward-looking statements, whether because of these factors or for other reasons. All forward-looking statements speak only as of the date of this Quarterly Report on Form 10-Q and are expressly qualified in their entirety by the cautionary statements included in this report. Except as required by applicable law, the Company does not assume any obligation to update any forward-looking statements.

Item 3: Quantitative and Qualitative Disclosures About Market Risk

There have been no material changes in the Company’s market risk during the nine months ended October 3, 2015. For information regarding the Company’s market risk, refer to Item 7A of Part II of the Company’s Annual Report on Form 10-K for the year ended December 31, 2014, as filed with the SEC on February 27, 2015.

Item 4: Controls and Procedures

Evaluation of Disclosure Controls and Procedures

The Company’s chief executive officer and chief financial officer (principal executive and principal financial officer), with the participation of management, evaluated the effectiveness of the Company’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this Quarterly Report on Form 10-Q. Based on this evaluation, the Company’s chief executive officer

28

and chief financial officer concluded that the Company’s disclosure controls and procedures were effective as of October 3, 2015 (1) to ensure that information required to be disclosed by the Company, including its consolidated subsidiaries, in the reports that it files or submits under the Exchange Act is accumulated and communicated to the Company’s management, including its chief executive officer and chief financial officer, to allow timely decisions regarding the required disclosure and (2) to provide reasonable assurance that information required to be disclosed by the Company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms.

Changes in Internal Controls Over Financial Reporting

No change was identified in the Company’s internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) during the quarter ended October 3, 2015 that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

Part II: Other Information

Item 1: Legal Proceedings

There have been no material changes in the Company’s legal proceedings during the nine months ended October 3, 2015 as described in Item 3 of Part I of the Company’s Annual Report on Form 10-K for the year ended December 31, 2014, as filed with the SEC on February 27, 2015.

Item 1A: Risk Factors

Information regarding risk factors of the Company is set forth under the heading “Risk Factors” under Part I, Item 1A in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014, as filed with the SEC on February 27, 2015. The Company reviewed its risk factors as of October 3, 2015 and determined that there were no material changes from the ones set forth in the Form 10-K. Note, however, the discussion under the subheading “Special Note Regarding Forward-Looking Statements” in Part I, Item 2 of this quarterly report on Form 10-Q. These risks are not the only ones facing the Company. Additional risks and uncertainties not currently known to the Company or that the Company currently deems to be immaterial also may materially adversely affect the Company’s business, financial condition and operating results.

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

Purchases of Common Stock by the Issuer

The following table provides information about purchases by the Company during the three months ended October 3, 2015 of common stock registered by the Company under the Exchange Act (in thousands, except per share data):

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 of Shares that May Yet Be Purchased Under the Plans or Programs (1)
July 5 to August 1, 2015		—	$	—		—	$	603,611
August 2 to August 29, 2015		470	$	128.45		470	$	543,268
August 30 to October 3, 2015		195	$	121.97		195	$	519,503
Total		665	$	126.55		665	$	519,503

(1) In May 2014, the Company’s Board of Directors authorized the repurchase of up to $750 million of its outstanding common stock in open market transactions over a three-year period.

29

Item 6: Exhibits

Exhibit Number	Description of Document
10.1	President and Chief Executive Employment Agreement.(1)
10.2	Change of Control/Severance Agreement, dated as of September 8, 2015, between Waters Corporation and Christopher J. O’Connell. (1)
31.1	Chief Executive Officer Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Chief Financial Officer Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1 *	Chief Executive Officer Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2 *	Chief Financial Officer Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101	The following materials from Waters Corporation’s Quarterly Report on Form 10-Q for the quarter ended October 3, 2015, formatted in XBRL (Extensible Business Reporting Language): (i) the Consolidated Balance Sheets (unaudited), (ii) the Consolidated Statements of Operations (unaudited), (iii) the Consolidated Statements of Comprehensive Income (unaudited), (iv) the Consolidated Statements of Cash Flows (unaudited), and (v) Condensed Notes to Consolidated Financial Statements (unaudited).

(1) Incorporated by reference to the Registrant’s Report on Form 10-Q dated August 7, 2015 (File No. 000114010).

* This exhibit shall not be deemed “filed” for purposes of Section 18 of the Exchange Act, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, whether made before or after the date hereof and irrespective of any general incorporation language in any filing, except to the extent the Company specifically incorporates it by reference.

30

SIGNATURE

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.

WATERS CORPORATION

/s/ EUGENE G. CASSIS

Eugene G. Cassis

Corporate Vice President and

Chief Financial Officer

Date: November 6, 2015

31

EX-31.1

Exhibit 31.1

CHIEF EXECUTIVE OFFICER CERTIFICATION PURSUANT TO SECTION 302

OF THE SARBANES-OXLEY ACT OF 2002

I, Christopher J. O’Connell certify that:

1. I have reviewed this quarterly report on Form 10-Q of Waters 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(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

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

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

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

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

5. The registrant’s other certifying officer(s) 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.

Date: November 6, 2015	/s/ Christopher J. O’Connell
	Christopher J. O’Connell
	Chief Executive Officer

EX-31.2

Exhibit 31.2

CHIEF FINANCIAL OFFICER CERTIFICATION PURSUANT TO SECTION 302

OF THE SARBANES-OXLEY ACT OF 2002

I, Eugene G. Cassis, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Waters 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(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

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

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

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

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

5. The registrant’s other certifying officer(s) 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.

Date: November 6, 2015	/s/ Eugene G. Cassis
	Eugene G. Cassis
	Chief Financial Officer

EX-32.1

Exhibit 32.1

CHIEF EXECUTIVE OFFICER CERTIFICATION PURSUANT TO 18 U.S.C.

SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

The certification set forth below is hereby made solely for the purpose of satisfying the requirements of Section 906 of the Sarbanes-Oxley Act of 2002 and may not be relied upon or used for any other purposes.

In connection with the Quarterly Report of Waters Corporation (the “Company”) on Form 10-Q for the period ended October 3, 2015, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Christopher J. O’Connell, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge: (1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and (2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

A signed original of this written statement required by Section 906 or other document authenticating, acknowledging or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

Date: November 6, 2015	By:	/s/ Christopher J. O’Connell
		Christopher J. O’Connell
		Chief Executive Officer

EX-32.2

Exhibit 32.2

CHIEF FINANCIAL OFFICER CERTIFICATION PURSUANT TO 18 U.S.C.

SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

The certification set forth below is hereby made solely for the purpose of satisfying the requirements of Section 906 of the Sarbanes-Oxley Act of 2002 and may not be relied upon or used for any other purposes.

In connection with the Quarterly Report of Waters Corporation (the “Company”) on Form 10-Q for the period ended October 3, 2015, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Eugene G. Cassis, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to my knowledge: (1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and (2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

A signed original of this written statement required by Section 906 or other document authenticating, acknowledging or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

Date: November 6, 2015	By:	/s/ Eugene G. Cassis
		Eugene G. Cassis
		Chief Financial Officer

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Acquisitions (Details) - USD ($)
$ in Thousands

9 Months Ended

12 Months Ended

Oct. 03, 2015

Dec. 31, 2014

Business Acquisition [Line Items]

Goodwill

$ 352,151

$ 354,838

Weighted-average useful life of acquired intangible assets

8 years

8 years

Pro forma effect of business acquisitions

The impact of the acquisition of ElectroForce on the Company's revenues and net income since the acquisition date for the nine months ended October 3, 2015 was immaterial.

Acquisitions in 2015 [Member]

Business Acquisition [Line Items]

Accounts receivable and other current assets acquired

$ 1,520

Inventory acquired

4,489

Property, plant and equipment acquired

699

Intangible assets acquired

3,700

Goodwill

1,118

Total assets acquired

11,526

Accrued expenses and other current liabilities acquired

2,118

Cash consideration paid

$ 9,408

Acquisitions in 2015 [Member] | Unpatented Technology [Member]

Business Acquisition [Line Items]

Weighted-average useful life of acquired intangible assets

10 years

Acquisitions in 2015 [Member] | Customer Relationships [Member]

Business Acquisition [Line Items]

Weighted-average useful life of acquired intangible assets

5 years

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Earnings Per Share (Tables)

9 Months Ended

Oct. 03, 2015

Earnings Per Share Reconciliation [Abstract]

Earnings Per Share Reconciliation

Basic and diluted earnings per share (“EPS”) calculations are detailed as follows (in thousands, except per share data):

		Three Months Ended October 3, 2015
		Net Income		Weighted-Average Shares	Per Share
		(Numerator)		(Denominator)	Amount
Net income per basic common share		$	116,281	82,036	$	1.42
Effect of dilutive stock option, restricted
	stock and restricted stock unit securities		-	748		(0.02)
Net income per diluted common share		$	116,281	82,784	$	1.40

		Three Months Ended September 27, 2014
		Net Income		Weighted-Average Shares	Per Share
		(Numerator)		(Denominator)	Amount
Net income per basic common share		$	113,497	83,663	$	1.36
Effect of dilutive stock option, restricted
	stock and restricted stock unit securities		-	738		(0.02)
Net income per diluted common share		$	113,497	84,401	$	1.34

		Nine Months Ended October 3, 2015
		Net Income		Weighted-Average Shares	Per Share
		(Numerator)		(Denominator)	Amount
Net income per basic common share		$	317,999	82,552	$	3.85
Effect of dilutive stock option, restricted
	stock and restricted stock unit securities		-	753		(0.03)
Net income per diluted common share		$	317,999	83,305	$	3.82

		Nine Months Ended September 27, 2014
		Net Income		Weighted-Average Shares	Per Share
		(Numerator)		(Denominator)	Amount
Net income per basic common share		$	280,328	84,375	$	3.32
Effect of dilutive stock option, restricted
	stock and restricted stock unit securities		-	787		(0.03)
Net income per diluted common share		$	280,328	85,162	$	3.29

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Basis of Presentation and Significant Accounting Policies (Tables)

9 Months Ended

Oct. 03, 2015

Fair Value of Assets and Liabilities Measured on a Recurring Basis [Abstract]

Fair Value of Assets and Liabilities Measured on a Recurring Basis

The following table represents the Company's assets and liabilities measured at fair value on a recurring basis at October 3, 2015 (in thousands):

					Quoted Prices
					in Active		Significant
					Markets		Other		Significant
					for Identical		Observable		Unobservable
			Total at		Assets		Inputs		Inputs
			October 3, 2015		(Level 1)		(Level 2)		(Level 3)
Assets:
	U.S. Treasury securities		$	629,048	$	-	$	629,048	$	-
	Corporate debt securities			1,233,772		-		1,233,772		-
	Time deposits			80,931		-		80,931		-
	Equity securities			147		-		147		-
	Other cash equivalents			29,000		-		29,000		-
	Waters 401(k) Restoration Plan assets			33,842		-		33,842		-
	Foreign currency exchange contracts			38		-		38		-
		Total	$	2,006,778	$	-	$	2,006,778	$	-
Liabilities:
	Contingent consideration		$	4,116	$	-	$	-	$	4,116
	Foreign currency exchange contracts			575		-		575		-
		Total	$	4,691	$	-	$	575	$	4,116

The following table represents the Company's assets and liabilities measured at fair value on a recurring basis at December 31, 2014 (in thousands):

					Quoted Prices
					in Active		Significant
					Markets		Other		Significant
			Total at		for Identical		Observable		Unobservable
			December 31,		Assets		Inputs		Inputs
			2014		(Level 1)		(Level 2)		(Level 3)
Assets:
	U.S. Treasury securities		$	626,772	$	-	$	626,772	$	-
	Foreign government securities			24,998		-		24,998		-
	Corporate debt securities			984,105		-		984,105		-
	Time deposits			64,240		-		64,240		-
	Equity securities			147		-		147		-
	Other cash equivalents			29,000		-		29,000		-
	Waters 401(k) Restoration Plan assets			33,935		-		33,935		-
	Foreign currency exchange contracts			123		-		123		-
		Total	$	1,763,320	$	-	$	1,763,320	$	-
Liabilities:
	Contingent consideration		$	3,612	$	-	$	-	$	3,612
	Foreign currency exchange contracts			651		-		651		-
		Total	$	4,263	$	-	$	651	$	3,612

Summary of Derivative Instruments by Risk Exposure [Abstract]

Gains (Losses) on Foreign Currency Exchange Contracts

The following is a summary of the activity in cost of sales in the statements of operations related to the forward foreign exchange contracts (in thousands):

	Three Months Ended				Nine Months Ended
	October 3, 2015		September 27, 2014		October 3, 2015		September 27, 2014
Realized gains (losses) on closed contracts	$	810	$	(266)	$	5	$	(366)
Unrealized losses on open contracts		(71)		(43)		(9)		(1,000)
Cumulative net pre-tax gains (losses)	$	739	$	(309)	$	(4)	$	(1,366)

Fair Value of Forward Foreign Exchange Contracts

The Company's foreign currency exchange contracts included in the consolidated balance sheets are classified as follows (in thousands):

	October 3, 2015		December 31, 2014
Other current assets	$	38	$	123
Other current liabilities	$	575	$	651

Warranty Accrual Roll Forward [Abstract]

Warranty Accrual Roll Forward

The following is a summary of the activity of the Company's accrued warranty liability for the nine months ended October 3, 2015 and September 27, 2014 (in thousands):

	Balance at						Balance at
	Beginning		Accruals for		Settlements		End of
	of Period		Warranties		Made		Period
Accrued warranty liability:
October 3, 2015	$	13,266	$	5,834	$	(5,993)	$	13,107
September 27, 2014	$	12,962	$	5,292	$	(5,773)	$	12,481

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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Income Tax Contingency [Line Items]
Unrecognized tax benefits, balance at the beginning of the period			$ 19,596	$ 24,716
Other changes in uncertain tax benefits			(861)	(3,268)
Unrecognized tax benefits, balance at the end of the period	$ 18,735	$ 21,448	18,735	$ 21,448
Expected change in unrecognized tax benefits in the next twelve months	$ (5,000)		$ (5,000)
Income Taxes [Line Items]
Effective income tax rate	10.30%	13.60%	13.30%	14.10%
Discrete international benefit			$ 2,000
Singapore [Member]
Income Taxes [Line Items]
Marginal effective income tax rate			0.00%
Statutory Tax Rate			17.00%

XML

Marketable Securities (Details) - USD ($) $ in Thousands	Oct. 03, 2015	Dec. 31, 2014
Cash Equivalents and Investments [Line Items]
Amortized Cost	$ 1,941,905	$ 1,700,666
Unrealized Gain	2,430	441
Unrealized Loss	(437)	(845)
Fair Value	1,943,898	1,700,262
Debt securities due in one year or less	1,063,640	872,872
Debt securities due after one year through three years	799,180	763,003
Total debt securities	1,862,820	1,635,875
Cash Equivalents [Member]
Cash Equivalents and Investments [Line Items]
Amortized Cost	92,682	67,051
Fair Value	92,682	67,051
Investments [Member]
Cash Equivalents and Investments [Line Items]
Amortized Cost	1,849,223	1,633,615
Unrealized Gain	2,430	441
Unrealized Loss	(437)	(845)
Fair Value	1,851,216	1,633,211
US Treasury Securities
Cash Equivalents and Investments [Line Items]
Amortized Cost	627,630	626,683
Unrealized Gain	1,465	246
Unrealized Loss	(47)	(157)
Fair Value	629,048	626,772
Foreign Government Debt Securities
Cash Equivalents and Investments [Line Items]
Amortized Cost		24,998
Fair Value		24,998
Corporate Debt Securities
Cash Equivalents and Investments [Line Items]
Amortized Cost	1,233,267	984,668
Unrealized Gain	895	125
Unrealized Loss	(390)	(688)
Fair Value	1,233,772	984,105
Time Deposits
Cash Equivalents and Investments [Line Items]
Amortized Cost	80,931	64,240
Fair Value	80,931	64,240
Equity Securities
Cash Equivalents and Investments [Line Items]
Amortized Cost	77	77
Unrealized Gain	70	70
Fair Value	$ 147	$ 147

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Inventories

9 Months Ended

Oct. 03, 2015

Inventory Items, Net Of Reserves Alternative [Abstract]

Inventories Disclosure

3  Inventories

Inventories are classified as follows (in thousands):

		October 3, 2015		December 31, 2014
Raw materials		$	94,226	$	84,952
Work in progress			21,814		16,749
Finished goods			165,746		144,729
	Total inventories	$	281,786	$	246,430

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Stock-Based Compensation (Details) - USD ($) $ / shares in Units, shares in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Stock-Based Compensation Allocation of Recognized Period Expense [Line Items]
Allocated stock-based compensation expense	$ 8,347,000	$ 8,107,000	$ 24,957,000	$ 24,460,000
Stock Options Outstanding Roll Forward [Line Items]
Options outstanding at beginning of period			3,280
Options granted			115	32
Options exercised			(342)
Options canceled			(72)
Options outstanding at end of period	2,981		2,981
Weighted-average exercise price of options outstanding at beginning of period			$ 82.85
Weighted-average exercise price of options granted			121.33	$ 99.22
Weighted-average exercise price of options exercised			74.44
Weighted average exercise price of options canceled			83.25
Weighted-average exercise price of options outstanding at end of period	$ 85.29		$ 85.29
Stock Option Fair Value Assumptions and Methodology [Abstract]
Stock option fair value assumptions, risk free interest rate			1.40%	1.90%
Stock option fair value assumptions, expected life in years			4 years	4 years
Stock option fair value assumptions, expected volatility			29.10%	24.50%
Stock option fair value assumptions, expected dividends			$ 0	$ 0
Weighted-average grant date fair value of options granted			$ 30.85	$ 22.38
Restricted Stock Plan [Member]
Stock-Based Compensation by Award [Line Items]
Shares granted			10
Weighted-average grant date fair value of shares granted			$ 113.88
Restricted Stock Unit Plan [Member]
Stock-Based Compensation by Award [Line Items]
Unvested shares at beginning of period			533
Shares granted			150
Shares vested			(144)
Shares forfeited			(12)
Unvested shares at end of period	527		527
Weighted-average grant date fair value of shares unvested at beginning of period			$ 94.38
Weighted-average grant date fair value of shares granted			119.46
Weighted-average grant date fair value of shares vested			85.40
Weighted-average grant date fair value of shares forfeited			99.75
Weighted-average grant date fair value of shares unvested at end of period	$ 103.85		$ 103.85
Award vesting period			5 years
Minimum
Stock Options Outstanding Roll Forward [Line Items]
Weighted-average exercise price of options outstanding at beginning of period			$ 37.84
Weighted-average exercise price of options granted			113.88
Weighted-average exercise price of options exercised			37.84
Weighted average exercise price of options canceled			79.05
Weighted-average exercise price of options outstanding at end of period	38.09		38.09
Maximum
Stock Options Outstanding Roll Forward [Line Items]
Weighted-average exercise price of options outstanding at beginning of period			113.36
Weighted-average exercise price of options granted			134.37
Weighted-average exercise price of options exercised			98.21
Weighted average exercise price of options canceled			87.06
Weighted-average exercise price of options outstanding at end of period	$ 134.37		$ 134.37
Cost of sales [Member]
Stock-Based Compensation Allocation of Recognized Period Expense [Line Items]
Allocated stock-based compensation expense	$ 668,000	633,000	$ 1,990,000	$ 2,061,000
Selling and administrative expenses [Member]
Stock-Based Compensation Allocation of Recognized Period Expense [Line Items]
Allocated stock-based compensation expense	6,626,000	6,355,000	19,686,000	19,345,000
Research and development expenses [Member]
Stock-Based Compensation Allocation of Recognized Period Expense [Line Items]
Allocated stock-based compensation expense	$ 1,053,000	$ 1,119,000	$ 3,281,000	$ 3,054,000

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Goodwill and Other Intangibles (Tables)

9 Months Ended

Oct. 03, 2015

Goodwill and Other Intangibles [Abstract]

Schedule of Intangible Assets by Major Class

The Company's intangible assets included in the consolidated balance sheets are detailed as follows (in thousands):

		October 3, 2015						December 31, 2014
						Weighted-						Weighted-
		Gross				Average		Gross				Average
		Carrying		Accumulated		Amortization		Carrying		Accumulated		Amortization
		Amount		Amortization		Period		Amount		Amortization		Period
Capitalized software		$	335,517	$	202,468	7	years	$	334,280	$	196,477	7	years
Purchased intangibles			163,144		117,632	11	years		163,855		112,279	11	years
Trademarks and IPR&D			13,967		-				14,095		-
Licenses			5,499		3,995	6	years		5,371		3,634	6	years
Patents and other
	intangibles		61,773		32,999	8	years		56,513		29,353	8	years
	Total	$	579,900	$	357,094	8	years	$	574,114	$	341,743	8	years

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Acquisitions (Tables)

9 Months Ended

Oct. 03, 2015

Acquisitions [Abstract]

Acquired Assets and Liabilities

The fair values of the assets and liabilities acquired were determined using various income-approach valuation techniques, which use Level 3 inputs. The following table presents the fair values as of the acquisition date, as determined by the Company, of 100% of the assets and liabilities owned and recorded in connection with the acquisition of ElectroForce(in thousands):

Accounts receivable and other current assets		$	1,520
Inventory			4,489
Property, plant and equipment			699
Intangible assets			3,700
Goodwill			1,118
	Total assets acquired		11,526
Accrued expenses and other current liabilities			2,118
	Cash consideration paid	$	9,408

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Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	600	500	700	500
Earnings Per Share Reconciliation [Abstract]
Net income	$ 116,281	$ 113,497	$ 317,999	$ 280,328
Net income per basic common share	$ 1.42	$ 1.36	$ 3.85	$ 3.32
Effect of dilutive stock option, restricted stock and restricted stock unit securities	(0.02)	(0.02)	(0.03)	(0.03)
Net income per diluted common share	$ 1.40	$ 1.34	$ 3.82	$ 3.29
Weighted-average number of basic common shares	82,036	83,663	82,552	84,375
Effect of dilutive stock option, restricted stock and restricted stock unit securities on shares outstanding	748	738	753	787
Weighted-average number of diluted common shares and equivalents	82,784	84,401	83,305	85,162

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Debt (Tables)

9 Months Ended

Oct. 03, 2015

Debt [Abstract]

Schedule of Outstanding Debt

The Company had the following outstanding debt at October 3, 2015 and December 31, 2014(in thousands):

		October 3, 2015		December 31, 2014
Foreign subsidiary lines of credit		$	176	$	243
Senior unsecured notes - Series A - 3.75%, due February 2015			-		100,000
Senior unsecured notes - Series C - 2.50%, due March 2016			50,000		-
Credit agreements			125,000		125,000
	Total notes payable and debt		175,176		225,243
Senior unsecured notes - Series B - 5.00%, due February 2020			100,000		100,000
Senior unsecured notes - Series C - 2.50%, due March 2016			-		50,000
Senior unsecured notes - Series D - 3.22%, due March 2018			100,000		100,000
Senior unsecured notes - Series E - 3.97%, due March 2021			50,000		50,000
Senior unsecured notes - Series F - 3.40%, due June 2021			100,000		100,000
Senior unsecured notes - Series G - 3.92%, due June 2024			50,000		50,000
Senior unsecured notes - Series H - floating rate*, due June 2024			50,000		50,000
Credit agreements			1,005,000		740,000
	Total long-term debt		1,455,000		1,240,000
Total debt		$	1,630,176	$	1,465,243
* Series H senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.25%.

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Income Taxes (Tables)

9 Months Ended

Oct. 03, 2015

Income Taxes [Abstract]

Unrecognized Tax Benefits Roll Forward

The following is a summary of the activity of the Company's unrecognized tax benefits for the nine months ended October 3, 2015 and September 27, 2014 (in thousands):

		October 3, 2015		September 27, 2014
Balance at the beginning of the period		$	19,596	$	24,716
	Net changes in uncertain tax benefits		(861)		(3,268)
Balance at the end of the period		$	18,735	$	21,448

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Marketable Securities

9 Months Ended

Oct. 03, 2015

Cash, Cash Equivalents, and Short-term Investments [Abstract]

Cash, Cash Equivalents and Short-term Investments

2 Marketable Securities

The Company's marketable securities within cash equivalents and investments included in the consolidated balance sheets are detailed as follows (in thousands):

		October 3, 2015
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gain		Loss		Value
U.S. Treasury securities		$	627,630	$	1,465	$	(47)	$	629,048
Corporate debt securities			1,233,267		895		(390)		1,233,772
Time deposits			80,931		-		-		80,931
Equity securities			77		70		-		147
	Total	$	1,941,905	$	2,430	$	(437)	$	1,943,898
Amounts included in:
	Cash equivalents	$	92,682	$	-	$	-	$	92,682
	Investments		1,849,223		2,430		(437)		1,851,216
	Total	$	1,941,905	$	2,430	$	(437)	$	1,943,898

		December 31, 2014
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gain		Loss		Value
U.S. Treasury securities		$	626,683	$	246	$	(157)	$	626,772
Foreign government securities			24,998		-		-		24,998
Corporate debt securities			984,668		125		(688)		984,105
Time deposits			64,240		-		-		64,240
Equity securities			77		70		-		147
	Total	$	1,700,666	$	441	$	(845)	$	1,700,262
Amounts included in:
	Cash equivalents	$	67,051	$	-	$	-	$	67,051
	Investments		1,633,615		441		(845)		1,633,211
	Total	$	1,700,666	$	441	$	(845)	$	1,700,262

The estimated fair value of marketable debt securities by maturity date is as follows (in thousands):

		October 3, 2015		December 31, 2014
Due in one year or less		$	1,063,640	$	872,872
Due after one year through three years			799,180		763,003
	Total	$	1,862,820	$	1,635,875

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Stock-Based Compensation (Tables)

9 Months Ended

Oct. 03, 2015

Stock-Based Compensation [Abstract]

Schedule of Stock-Based Compensation Expense

The consolidated statements of operations for the three and nine months endedOctober 3, 2015 and September 27, 2014 include the following stock-based compensation expense related to stock option awards, restricted stock, restricted stock unit awards and the employee stock purchase plan (in thousands):

		Three Months Ended				Nine Months Ended
		October 3, 2015		September 27, 2014		October 3, 2015		September 27, 2014
Cost of sales		$	668	$	633	$	1,990	$	2,061
Selling and administrative expenses			6,626		6,355		19,686		19,345
Research and development expenses			1,053		1,119		3,281		3,054
	Total stock-based compensation	$	8,347	$	8,107	$	24,957	$	24,460

Relevant Data Used to Determine the Value of Stock Options Granted During the Period

The relevant data used to determine the value of the stock options granted during the nine months endedOctober 3, 2015 and September 27, 2014 are as follows:

	Nine Months Ended
Options Issued and Significant Assumptions Used to Estimate Option Fair Values	October 3, 2015	September 27, 2014
Options issued in thousands	115	32
Risk-free interest rate	1.4%	1.9%
Expected life in years	4	4
Expected volatility	0.291	0.245
Expected dividends	-	-

	Nine Months Ended
Weighted-Average Exercise Price and Fair Value of Options on the Date of Grant	October 3, 2015		September 27, 2014
Exercise price	$	121.33	$	99.22
Fair value	$	30.85	$	22.38

Stock Options Outstanding Roll Forward

The following table summarizes stock option activity for the plans for the nine months endedOctober 3, 2015(in thousands, except per share data):

		Number of Shares	Price per Share					Weighted-Average Exercise Price
Outstanding at December 31, 2014		3,280	$	37.84	to	$	113.36	$	82.85
	Granted	115	$	113.88	to	$	134.37	$	121.33
	Exercised	(342)	$	37.84	to	$	98.21	$	74.44
	Canceled	(72)	$	79.05	to	$	87.06	$	83.25
Outstanding at October 3, 2015		2,981	$	38.09	to	$	134.37	$	85.29

Restricted Stock Units Unvested Roll Forward

The following table summarizes the unvested restricted stock unit award activity for the nine months endedOctober 3, 2015 (in thousands, except for per share amounts):

		Shares	Weighted-Average Price
Unvested at December 31, 2014		533	$	94.38
	Granted	150	$	119.46
	Vested	(144)	$	85.40
	Forfeited	(12)	$	99.75
Unvested at October 3, 2015		527	$	103.85

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Goodwill and Other Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014	Dec. 31, 2014
Goodwill [Line Items]
Goodwill	$ 352,151		$ 352,151		$ 354,838
Goodwill foreign currency translation adjustments			(4,000)
Intangible Assets [Line Items]
Intangible assets, gross	579,900		579,900		574,114
Intangible assets, accumulated amortization	357,094		$ 357,094		$ 341,743
Weighted-average useful life of acquired intangible assets			8 years		8 years
Intangible assets, gross foreign currency translation adjustments			$ (31,000)
Intangible assets, accumulated amortization foreign currency translation adjustments			(18,000)
Amortization expense	12,000	$ 12,000	34,000	$ 36,000
Future amortization expense, year 1	44,000		44,000
Future amortization expense, year 2	44,000		44,000
Future amortization expense, year 3	44,000		44,000
Future amortization expense, year 4	44,000		44,000
Future amortization expense, year 5	44,000		44,000
Capitalized software [Member]
Intangible Assets [Line Items]
Intangible assets, gross	335,517		335,517		$ 334,280
Intangible assets, accumulated amortization	202,468		$ 202,468		$ 196,477
Weighted-average useful life of acquired intangible assets			7 years		7 years
Purchased intangibles [Member]
Intangible Assets [Line Items]
Intangible assets, gross	163,144		$ 163,144		$ 163,855
Intangible assets, accumulated amortization	117,632		$ 117,632		$ 112,279
Weighted-average useful life of acquired intangible assets			11 years		11 years
Trademarks and IPR&D[Member]
Intangible Assets [Line Items]
Intangible assets, gross	13,967		$ 13,967		$ 14,095
Licenses [Member]
Intangible Assets [Line Items]
Intangible assets, gross	5,499		5,499		5,371
Intangible assets, accumulated amortization	3,995		$ 3,995		$ 3,634
Weighted-average useful life of acquired intangible assets			6 years		6 years
Patents and other intangibles [Member]
Intangible Assets [Line Items]
Intangible assets, gross	61,773		$ 61,773		$ 56,513
Intangible assets, accumulated amortization	32,999		$ 32,999		$ 29,353
Weighted-average useful life of acquired intangible assets			8 years		8 years
Acquisitions in 2015
Goodwill [Line Items]
Goodwill	1,118		$ 1,118
Intangible Assets [Line Items]
Intangible assets acquired	$ 3,700		$ 3,700

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Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Oct. 03, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 459,518	$ 422,177
Investments	1,851,216	1,633,211
Accounts receivable, less allowances for doubtful accounts and sales returns of $6,651 and $7,179 at October 3, 2015 and December 31, 2014, respectively	416,311	433,616
Inventories	281,786	246,430
Other current assets	85,016	118,302
Total current assets	3,093,847	2,853,736
Property, plant and equipment, net	325,554	321,583
Intangible assets, net	222,806	232,371
Goodwill	352,151	354,838
Other assets	126,886	115,406
Total assets	4,121,244	3,877,934
Current liabilities:
Notes payable and debt	175,176	225,243
Accounts payable	61,710	65,704
Accrued employee compensation	39,809	47,198
Deferred revenue and customer advances	157,992	129,706
Accrued income taxes	5,388	15,143
Accrued warranty	13,107	13,266
Other current liabilities	82,772	85,335
Total current liabilities	535,954	581,595
Long-term liabilities:
Long-term debt	1,455,000	1,240,000
Long-term portion of retirement benefits	77,353	85,230
Long-term income tax liabilities	19,482	20,397
Other long-term liabilities	64,899	56,046
Total long-term liabilities	1,616,734	1,401,673
Total liabilities	$ 2,152,688	$ 1,983,268
Commitments and contingencies (Notes 6, 7 and 10)
Stockholders' equity:
Preferred stock, par value $0.01 per share, 5,000 shares authorized, none issued at October 3, 2015 and December 31, 2014	$ 0	$ 0
Common stock, par value $0.01 per share, 400,000 shares authorized, 157,252 and 156,716 shares issued, 81,654 and 83,147 shares outstanding at October 3, 2015 and December 31, 2014, respectively	1,573	1,567
Additional paid-in capital	1,451,601	1,392,494
Retained earnings	4,712,512	4,394,513
Treasury stock, at cost, 75,598 and 73,569 shares at October 3, 2015 and December 31, 2014, respectively	(4,070,314)	(3,815,203)
Accumulated other comprehensive loss	(126,816)	(78,705)
Total stockholders' equity	1,968,556	1,894,666
Total liabilities and stockholders' equity	$ 4,121,244	$ 3,877,934

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Retirement Plans (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Minimum
Defined Benefit Plan Disclosure [Line Items]
Estimated future employer contributions to defined benefit plans in current fiscal year			$ 6,000
Maximum
Defined Benefit Plan Disclosure [Line Items]
Estimated future employer contributions to defined benefit plans in current fiscal year			11,000
U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 1,570	$ 1,623	4,596	$ 4,813
Expected return on plan assets	(2,223)	(2,179)	(6,859)	(6,795)
Net amortization: Net actuarial loss (gain)	1,101	692	2,459	1,662
Net periodic pension (benefit) cost	448	136	196	(320)
Defined benefit plan, contributions by employer			4,000
U.S. Retiree Healthcare Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	(91)	196	433	594
Interest cost	116	111	352	347
Expected return on plan assets	(129)	(112)	(373)	(326)
Net amortization: Prior service cost (credit)		(13)		(39)
Net amortization: Net actuarial loss (gain)		(18)		(26)
Net periodic pension (benefit) cost	(104)	164	412	550
Non-U.S. Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	1,337	1,212	4,011	3,636
Interest cost	402	592	1,206	1,776
Expected return on plan assets	(410)	(392)	(1,230)	(1,176)
Net amortization: Prior service cost (credit)	14	(47)	42	(141)
Net amortization: Net actuarial loss (gain)	273	97	819	291
Net periodic pension (benefit) cost	$ 1,616	$ 1,462	$ 4,848	$ 4,386

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Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014
Cash flows from operating activities:
Net income	$ 317,999	$ 280,328
Adjustments to reconcile net income to net cash provided by operating activities:
Provisions for doubtful accounts on accounts receivable	766	2,051
Provisions on inventory	3,683	3,603
Stock-based compensation	24,957	24,460
Deferred income taxes	1,821	(9,151)
Depreciation	33,202	34,661
Amortization of intangibles	33,693	35,889
Building impairment		4,093
Gain on sale of building	(1,377)
Change in operating assets and liabilities, net of acquisitions:
Decrease in accounts receivable	6,121	23,588
Increase in inventories	(39,171)	(36,812)
Decrease (increase) in other current assets	2,183	(9,348)
Increase in other assets	(11,614)	(10,949)
Increase in accounts payable and other current liabilities	4,234	3,887
Increase in deferred revenue and customer advances	31,099	23,737
Decrease in other liabilities	(954)	(20,111)
Net cash provided by operating activities	406,642	349,926
Cash flows from investing activities:
Additions to property, plant, equipment and software capitalization	(72,250)	(70,437)
Business acquisitions, net of cash acquired	(9,408)	(23,672)
Payments for intellectual property licenses		(1,800)
Purchases of investments	(1,467,078)	(1,731,043)
Maturities and sales of investments	1,249,073	1,504,528
Proceeds from sale of building	5,154
Net cash used in investing activities	(294,509)	(322,424)
Cash flows from financing activities:
Proceeds from debt issuances	285,073	336,430
Payments on debt	(120,140)	(229,770)
Payments of debt issuance costs	(2,382)	(1,400)
Proceeds from stock plans	28,948	43,287
Purchases of treasury shares	(255,111)	(261,570)
Excess tax benefit related to stock option plans	5,689	8,605
Proceeds from (payments for) debt swaps and other derivative contracts	5	(366)
Net cash used in financing activities	(57,918)	(104,784)
Effect of exchange rate changes on cash and cash equivalents	(16,874)	(6,546)
Increase (decrease) in cash and cash equivalents	37,341	(83,828)
Cash and cash equivalents at beginning of period	422,177	440,796
Cash and cash equivalents at end of period	$ 459,518	$ 356,968

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Business Segment Information (Tables)

9 Months Ended

Oct. 03, 2015

Business Segment Information [Abstract]

Revenue from External Customers by Products and Services

Net sales for the Company's products and services are as follows for the three and nine months endedOctober 3, 2015 and September 27, 2014 (in thousands):

			Three Months Ended				Nine Months Ended
			October 3, 2015		September 27, 2014		October 3, 2015		September 27, 2014
Product net sales:
	Waters instrument systems		$	219,196	$	213,122	$	625,276	$	595,670
	Chemistry			78,173		77,853		234,095		229,633
	TA instrument systems			39,564		40,190		112,471		111,922
		Total product sales		336,933		331,165		971,842		937,225
Service net sales:
	Waters service			148,206		146,038		438,104		423,155
	TA service			15,439		15,962		45,776		45,094
		Total service sales		163,645		162,000		483,880		468,249
Total net sales			$	500,578	$	493,165	$	1,455,722	$	1,405,474

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Stock-Based Compensation (Policies)

9 Months Ended

Oct. 03, 2015

Stock-Based Compensation [Abstract]

Stock-Based Compensation Policy

The Company accounts for stock-based compensation costs in accordance with the accounting standards for stock-based compensation, which require that all share-based payments to employees be recognized in the statements of operations based on their grant date fair values. The Company recognizes the expense using the straight-line attribution method. The stock-based compensation expense recognized in the consolidated statements of operations is based on awards that ultimately are expected to vest; therefore, the amount of expense has been reduced for estimated forfeitures. The stock-based compensation accounting standards require forfeitures to be estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. Forfeitures were estimated based on historical experience. If actual results differ significantly from these estimates, stock-based compensation expense and the Company's results of operations could be materially impacted. In addition, if the Company employs different assumptions in the application of these standards, the compensation expense that the Company records in the future periods may differ significantly from what the Company has recorded in the current period.

Stock Options

In determining the fair value of the stock options, the Company makes a variety of assumptions and estimates, including volatility measures, expected yields and expected stock option lives. The fair value of each option grant was estimated on the date of grant using the Black-Scholes option pricing model. The Company uses implied volatility on its publicly-traded options as the basis for its estimate of expected volatility. The Company believes that implied volatility is the most appropriate indicator of expected volatility because it is generally reflective of historical volatility and expectations of how future volatility will differ from historical volatility. The expected life assumption for grants is based on historical experience for the population of non-qualified stock option exercises. The risk-free interest rate is the yield currently available on U.S. Treasury zero-coupon issues with a remaining term approximating the expected term used as the input to the Black-Scholes model.

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Basis of Presentation and Summary of Significant Accounting Policies (Details) - USD ($) shares in Millions	1 Months Ended	3 Months Ended		9 Months Ended		35 Months Ended
	May. 31, 2014	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014	Apr. 04, 2015	Dec. 31, 2014
Derivative [Line Items]
Notional amount of foreign currency exchange contracts		$ 107,000,000		$ 107,000,000			$ 110,000,000
Cumulative net pre-tax gains (losses) on foreign exchange contracts		739,000	$ (309,000)	(4,000)	$ (1,366,000)
Realized gains (losses) on foreign exchange contracts		810,000	(266,000)	5,000	(366,000)
Unrealized (losses) gains on foreign exchange contracts		(71,000)	(43,000)	(9,000)	(1,000,000)
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents and Investments, Fair Value		1,943,898,000		1,943,898,000			1,700,262,000
Other cash equivalents		29,000,000		29,000,000			29,000,000
Waters 401(k) Restoration Plan assets		33,842,000		33,842,000			33,935,000
Foreign currency exchange contract assets		38,000		38,000			123,000
Fair value of total assets measured on a recurring basis		2,006,778,000		2,006,778,000			1,763,320,000
Contingent consideration		4,116,000		4,116,000			3,612,000
Foreign currency exchange contract liabilities		575,000		575,000			651,000
Fair value of total liabilities measured on a recurring basis		4,691,000		4,691,000			4,263,000
Property, Plant and Equipment [Line Items]
Real estate impairment			4,000,000		4,000,000
Fair value of building held-for-sale							4,000,000
Proceeds from sale of building				5,154,000
Gain on sale of building				$ 1,377,000
Cash Equivalents and Investments [Line Items]
Cash equivalents description				Cash equivalents represent highly liquid investments, with original maturities of 90 days or less, while investments with longer maturities are classified as investments.
Cash, cash equivalents and investments		2,311,000,000		$ 2,311,000,000			2,055,000,000
Debt [Line Items]
Long-term debt		1,455,000,000		1,455,000,000			1,240,000,000
Warranty Accrual Roll Forward [Abstract]
Accrued warranty liability, balance at beginning of period				13,266,000	12,962,000
Accruals for warranties				5,834,000	5,292,000
Settlements made				(5,993,000)	(5,773,000)
Accrued warranty liability, balance at end of period		13,107,000	$ 12,481,000	13,107,000	$ 12,481,000
US Treasury Securities
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents and Investments, Fair Value		629,048,000		629,048,000			626,772,000
Foreign Government Debt Securities
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents and Investments, Fair Value							24,998,000
Corporate Debt Securities
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents and Investments, Fair Value		1,233,772,000		1,233,772,000			984,105,000
Time Deposits
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents and Investments, Fair Value		80,931,000		80,931,000			64,240,000
Equity Securities
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents and Investments, Fair Value		147,000		$ 147,000			147,000
Programs authorized by Board of Directors [Member]
Stock Repurchase Program [Line Items]
Treasury stock shares acquired				2.0	2.4
Treasury stock				$ 249,000,000	$ 255,000,000
Stock repurchase program remaining amount authorized for future purchases		520,000,000		520,000,000
Related To Vesting Of Restricted Stock Units [Member]
Stock Repurchase Program [Line Items]
Treasury stock				6,000,000	$ 7,000,000
May 2014 Program [Member]
Stock Repurchase Program [Line Items]
Stock repurchase program authorization amount	$ 750,000,000
Stock repurchase program period, in years	3 years
May 2012 Program [Member]
Stock Repurchase Program [Line Items]
Treasury stock shares acquired						7.6
Treasury stock						$ 750,000,000
Significant Other Observable Inputs (Level 2)
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Other cash equivalents		29,000,000		29,000,000			29,000,000
Waters 401(k) Restoration Plan assets		33,842,000		33,842,000			33,935,000
Foreign currency exchange contract assets		38,000		38,000			123,000
Fair value of total assets measured on a recurring basis		2,006,778,000		2,006,778,000			1,763,320,000
Foreign currency exchange contract liabilities		575,000		575,000			651,000
Fair value of total liabilities measured on a recurring basis		575,000		575,000			651,000
Significant Other Observable Inputs (Level 2) | US Treasury Securities
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents and Investments, Fair Value		629,048,000		629,048,000			626,772,000
Significant Other Observable Inputs (Level 2) | Foreign Government Debt Securities
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents and Investments, Fair Value							24,998,000
Significant Other Observable Inputs (Level 2) | Corporate Debt Securities
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents and Investments, Fair Value		1,233,772,000		1,233,772,000			984,105,000
Significant Other Observable Inputs (Level 2) | Time Deposits
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents and Investments, Fair Value		80,931,000		80,931,000			64,240,000
Significant Other Observable Inputs (Level 2) | Equity Securities
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Cash Equivalents and Investments, Fair Value		147,000		147,000			147,000
Significant Unobservable Inputs (Level 3)
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Contingent consideration		4,116,000		4,116,000			3,612,000
Fair value of total liabilities measured on a recurring basis		4,116,000		4,116,000			3,612,000
Unsecured debt
Debt [Line Items]
Long-term debt		500,000,000		500,000,000			600,000,000
Unsecured debt | Fixed interest rate [Member]
Debt [Line Items]
Long-term debt		450,000,000		450,000,000			550,000,000
Fair value of debt instruments		456,000,000		456,000,000			558,000,000
Held by foreign subsidiaries [Member]
Cash Equivalents and Investments [Line Items]
Cash, cash equivalents and investments		$ 2,275,000,000		$ 2,275,000,000			$ 1,971,000,000

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Recent Accounting Standard Changes and Developments (Policies)

9 Months Ended

Oct. 03, 2015

Recent Accounting Standard Changes and Developments [Abstract]

New Accounting Pronouncements

Recently Issued Accounting Standards

In May 2014, amended accounting guidance was issued regarding the recognition of revenue from contracts with customers. The objective of this guidance is to significantly enhance comparability and clarify principles of revenue recognition practices across entities, industries, jurisdictions and capital markets. This guidance was originally effective for annual and interim reporting periods beginning after December 15, 2016; however, the Financial Accounting Standards Board has amended the standard in August 2015 to delay the effective period by one year. Adoption prior to December 15, 2016 is not permitted. The Company is currently evaluating its adoption method and the potential impact that the adoption of this standard will have on the Company's financial position, results of operations and cash flows.

In April 2015, accounting guidance was issued which requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability. Subsequently, the Securities and Exchange Commission staff announced that it will not object when debt issuance costs related to a revolving debt arrangement are presented as an asset regardless of whether or not there is an outstanding balance on the revolving debt arrangement.This guidance is effective for annual and interim reporting periods beginning after December 15, 2015 and early adoption is permitted. The Company is currently evaluating the potential impact that the adoption of this standard will have on the Company's financial position, results of operations and cash flows.

In the third quarter of 2015, accounting guidance was issued which clarifies the measurement of inventory. The new guidance requires inventory to be measured at the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. This guidance is effective for annual and interim periods beginning after December 15, 2016. The Company is currently evaluating the potential impact that the adoption of this standard will have on the Company's financial position, results of operations and cash flows.

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Basis of Presentation and Summary of Significant Accounting Policies

9 Months Ended

Oct. 03, 2015

Basis of Presentation and Summary of Significant Accounting Policies [Abstract]

Basis of Presentation and Summary of Significant Accounting Policies

1  Basis of Presentation and Summary of Significant Accounting Policies

Waters Corporation (“Waters®” or the “Company”) is an analytical instrument manufacturer that primarily designs, manufactures, sells and services, through its Waters Division, high performance liquid chromatography (“HPLC”), ultra performance liquid chromatography (“UPLC®” and together with HPLC, referred to as “LC”) and mass spectrometry (“MS”) technology systems and support products, including chromatography columns, other consumable products and comprehensive post-warranty service plans. These systems are complementary products that are frequently employed together (“LC-MS”) and sold as integrated instrument systems using a common software platform. LC is a standard technique and is utilized in a broad range of industries to detect, identify, monitor and measure the chemical, physical and biological composition of materials, and to purify a full range of compounds. MS instruments are used in drug discovery and development, including clinical trial testing, the analysis of proteins in disease processes (known as “proteomics”), nutritional safety analysis and environmental testing. LC-MS instruments combine a liquid phase sample introduction and separation system with mass spectrometric compound identification and quantification. Through its TA Division (“TA®”), the Company primarily designs, manufactures, sells and services thermal analysis, rheometry and calorimetry instruments, which are used in predicting the suitability and stability of fine chemicals, pharmaceuticals, water, polymers, metals and viscous liquids for various industrial, consumer goods and healthcare products, as well as for life science research. The Company is also a developer and supplier of software-based products that interface with the Company's instruments, as well as other suppliers' instruments, and are typically purchased by customers as part of the instrument system.

The Company's interim fiscal quarter typically ends on the thirteenth Saturday of each quarter. Since the Company's fiscal year end is December 31, the first and fourth fiscal quarters mayhave more or less than thirteen complete weeks. The Company's third fiscal quarters for 2015 and 2014 ended on October 3, 2015 and September 27, 2014, respectively.

The accompanying unaudited interim consolidated financial statements have been prepared in accordance with the instructions to the Quarterly Report on Form 10-Q and do not include all of the information and note disclosures required by generally accepted accounting principles (“GAAP”) in the United States of America.The consolidated financial statements include the accounts of the Company and its subsidiaries, most of which are wholly owned. All material inter-company balances and transactions have been eliminated.

The preparation of consolidated financial statements in conformity with GAAP requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent liabilities at the dates of the financial statements. Actual amounts may differ from these estimates under different assumptions or conditions.

It is management's opinion that the accompanying interim consolidated financial statements reflect all adjustments (which are normal and recurring) that are necessary for a fair statement of the results for the interim periods. The interim consolidated financial statements should be read in conjunction with the consolidated financial statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2014, as filed with the U.S. Securities and Exchange Commission on February 27, 2015.

Cash, Cash Equivalents and Investments

Cash equivalents represent highly liquid investments, with original maturities of 90 days or less, while investments with longer maturities are classified as investments.The Company maintains cash balances in various operating accounts in excess of federally insured limits, and in foreign subsidiary accounts in currencies other than U.S. dollars. As of October 3, 2015 and December 31, 2014, $2,275 million out of $2,311 million and $1,971 million out of $2,055 million, respectively, of the Company's total cash, cash equivalents and investments were held by foreign subsidiaries and may be subject to material tax effects on distribution to U.S. legal entities.

Property, Plant and Equipment

During the three and nine months ended September 27, 2014, the Company recorded a $4 million impairment charge related to a write-down in the fair value of a building in the U.K., which was designated as held for sale. The carrying value of the building was $4 million and was included in other current assets in the consolidated balance sheet at December 31, 2014. During the three months ended October 3, 2015, the Company sold the building for $5 million in cash, which resulted in a gain on the sale of $1 million.

Fair Value Measurements

In accordance with the accounting standards for fair value measurements and disclosures, certainof the Company's assets and liabilities are measured at fair value on a recurring basis as of October 3, 2015 and December 31, 2014. Fair values determined by Level 1 inputs utilize observable data, such as quoted prices in active markets. Fair values determined by Level 2 inputs utilize data points other than quoted prices in active markets that are observable either directly or indirectly. Fair values determined by Level 3 inputs utilize unobservable data points for which there is little or no market data, which require the reporting entity to develop its own assumptions.

The following table represents the Company's assets and liabilities measured at fair value on a recurring basis at October 3, 2015 (in thousands):

					Quoted Prices
					in Active		Significant
					Markets		Other		Significant
					for Identical		Observable		Unobservable
			Total at		Assets		Inputs		Inputs
			October 3, 2015		(Level 1)		(Level 2)		(Level 3)
Assets:
	U.S. Treasury securities		$	629,048	$	-	$	629,048	$	-
	Corporate debt securities			1,233,772		-		1,233,772		-
	Time deposits			80,931		-		80,931		-
	Equity securities			147		-		147		-
	Other cash equivalents			29,000		-		29,000		-
	Waters 401(k) Restoration Plan assets			33,842		-		33,842		-
	Foreign currency exchange contracts			38		-		38		-
		Total	$	2,006,778	$	-	$	2,006,778	$	-
Liabilities:
	Contingent consideration		$	4,116	$	-	$	-	$	4,116
	Foreign currency exchange contracts			575		-		575		-
		Total	$	4,691	$	-	$	575	$	4,116

The following table represents the Company's assets and liabilities measured at fair value on a recurring basis at December 31, 2014 (in thousands):

					Quoted Prices
					in Active		Significant
					Markets		Other		Significant
			Total at		for Identical		Observable		Unobservable
			December 31,		Assets		Inputs		Inputs
			2014		(Level 1)		(Level 2)		(Level 3)
Assets:
	U.S. Treasury securities		$	626,772	$	-	$	626,772	$	-
	Foreign government securities			24,998		-		24,998		-
	Corporate debt securities			984,105		-		984,105		-
	Time deposits			64,240		-		64,240		-
	Equity securities			147		-		147		-
	Other cash equivalents			29,000		-		29,000		-
	Waters 401(k) Restoration Plan assets			33,935		-		33,935		-
	Foreign currency exchange contracts			123		-		123		-
		Total	$	1,763,320	$	-	$	1,763,320	$	-
Liabilities:
	Contingent consideration		$	3,612	$	-	$	-	$	3,612
	Foreign currency exchange contracts			651		-		651		-
		Total	$	4,263	$	-	$	651	$	3,612

The fair values of the Company's cash equivalents, investments, 401(k) restoration plan assets and foreign currency exchange contracts are determined through market and observable sources and have been classified as Level 2. These assets and liabilities have been initially valued at the transaction price and subsequently valued, typically utilizing third-party pricing services. The pricing services use many inputs to determine value, including reportable trades, benchmark yields, credit spreads, broker/dealer quotes, current spot rates and other industry and economic events. The Company validates the prices provided by third-party pricing services by reviewing their pricing methods and obtaining market values from other pricing sources. After completing these validation procedures, the Company did not adjust or override any fair value measurements provided by third-party pricing services as of October 3, 2015 and December 31, 2014.

Fair Value of Contingent Consideration

The fair value of the Company's liability for contingent consideration related to the July 2014 acquisition of Medimass Research, Development and Service Kft. is determined using a probability-weighted discounted cash flow model, which uses significant unobservable inputs, and has been classified as Level 3. Subsequent changes in the fair value of the contingent consideration liability are recorded in the results of operations. The fair value of the contingent consideration liability associated with future earnout payments is based on several factors, including the development of future products, estimated sales of those products and a discount rate reflective of the Company's creditworthiness. A change in any of these unobservable inputs can significantly change the fair value of the contingent consideration. Although there is no contractual limit, the fair value of future contingent consideration payments was estimated to be approximately $4 million at both October 3, 2015 and December 31, 2014, based on the Company's best estimate, as the earnout is based on future sales of certain products through 2034. There have been no changes in significant assumptions since December 31, 2014 and the change in fair value since then is primarily due to change in time value of money.

Fair Value of Other Financial Instruments

The Company's cash, accounts receivable, accounts payable and variable interest rate debt are recorded at cost,which approximates fair value. The carrying value of the Company's fixed interest rate debt was $450 millionand $550 million at October 3, 2015 and December 31, 2014, respectively. The fair value of the Company's fixed interest rate debt was estimated using discounted cash flow models, based on estimated current rates offered for similar debt under current market conditions for the Company. The fair value of the Company's fixed interest rate debt was estimated to be $456 million and $558 million at October 3, 2015 and December 31, 2014, respectively, using Level 2 inputs.

Derivative Transactions

The Company enters into foreign currency exchange contracts to manage exposures to changes in foreign currency exchange rates on certain inter-company balances and short-term assets and liabilities. Principal hedged currencies include the Euro, Japanese yen, British pound and Brazilian real. At October 3, 2015 and December 31, 2014, the Company held forward foreign exchange contracts with notional amounts totaling $107 million and $110 million, respectively.

The Company's foreign currency exchange contracts included in the consolidated balance sheets are classified as follows (in thousands):

	October 3, 2015		December 31, 2014
Other current assets	$	38	$	123
Other current liabilities	$	575	$	651

The following is a summary of the activity in cost of sales in the statements of operations related to the forward foreign exchange contracts (in thousands):

	Three Months Ended				Nine Months Ended
	October 3, 2015		September 27, 2014		October 3, 2015		September 27, 2014
Realized gains (losses) on closed contracts	$	810	$	(266)	$	5	$	(366)
Unrealized losses on open contracts		(71)		(43)		(9)		(1,000)
Cumulative net pre-tax gains (losses)	$	739	$	(309)	$	(4)	$	(1,366)

Stockholders' Equity

In May 2014, the Company's Board of Directors authorized the Company to repurchase up to $750 million of its outstanding common stock over a three-year period and authorized the extension of the May 2012 program until May 2015. During the nine months endedOctober 3, 2015 and September 27, 2014, the Company repurchased 2.0 million and 2.4 million shares of the Company's outstanding common stock at a cost of $249 million and $255 million, respectively, under the May 2012 and May 2014 authorizations.As of October 3, 2015, the Company repurchased an aggregate of 7.6 million shares at a cost of $750 million under the May 2012 repurchase program, which is now completed.The Company has a total of $520 million authorized for future repurchases under the May 2014 plan. In addition, the Company repurchased $6 million and $7 million of common stock related to the vesting of restricted stock units during the nine months ended October 3, 2015 and September 27, 2014, respectively. The Company believes that it has the financial flexibility to fund these share repurchases given current cash levels and debt borrowing capacity, as well as to invest in research, technology and business acquisitions to further grow the Company's sales and profits.

Product Warranty Costs

The Company accrues estimated product warranty costs at the time of sale, which are included in cost of sales in the consolidated statements of operations. While the Company engages in extensive product quality programs and processes, including actively monitoring and evaluating the quality of its component suppliers, the Company's warranty obligation is affected by product failure rates, material usage and service delivery costs incurred in correcting a product failure. The amount of the accrued warranty liability is based on historical information, such as past experience, product failure rates, number of units repaired and estimated costs of material and labor. The liability is reviewed for reasonableness at least quarterly.

The following is a summary of the activity of the Company's accrued warranty liability for the nine months ended October 3, 2015 and September 27, 2014 (in thousands):

	Balance at						Balance at
	Beginning		Accruals for		Settlements		End of
	of Period		Warranties		Made		Period
Accrued warranty liability:
October 3, 2015	$	13,266	$	5,834	$	(5,993)	$	13,107
September 27, 2014	$	12,962	$	5,292	$	(5,773)	$	12,481

Subsequent Events

The Company did not have any material subsequent events.

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Consolidated Balance Sheets (Unaudited) (Parentheticals) - USD ($) $ in Thousands	Oct. 03, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Allowances for doubtful accounts and sales returns	$ 6,651	$ 7,179
Preferred stock, par value per share	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value per share	$ 0.01	$ 0.01
Common stock, shares authorized	400,000,000	400,000,000
Common stock, shares issued	157,252,000	156,716,000
Common stock, shares outstanding	81,654,000	83,147,000
Treasury stock, shares	75,598,000	73,569,000

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Business Segment Information

9 Months Ended

Oct. 03, 2015

Business Segment Information [Abstract]

Business Segment Information

11  Business Segment Information

The Company's business activities, for which discrete financial information is available, are regularly reviewed and evaluated by the chief operating decision maker. As a result of this evaluation, the Company determined that it has two operating segments: Waters Division and TA Division.

Waters Division is primarily in the business of designing, manufacturing, distributing and servicing LC and MS instruments, columns and other chemistry consumables that can be integrated and used along with other analytical instruments. TA Division is primarily in the business of designing, manufacturing, distributing and servicing thermal analysis, rheometry and calorimetry instruments. The Company's two divisions are its operating segments and each has similar economic characteristics; product processes; products and services; types and classes of customers; methods of distribution and regulatory environments. Because of these similarities, the two segments have been aggregated into one reporting segment for financial statement purposes. Please refer to the consolidated financial statements for financial information regarding the one reportable segment of the Company.

Net sales for the Company's products and services are as follows for the three and nine months endedOctober 3, 2015 and September 27, 2014 (in thousands):

			Three Months Ended				Nine Months Ended
			October 3, 2015		September 27, 2014		October 3, 2015		September 27, 2014
Product net sales:
	Waters instrument systems		$	219,196	$	213,122	$	625,276	$	595,670
	Chemistry			78,173		77,853		234,095		229,633
	TA instrument systems			39,564		40,190		112,471		111,922
		Total product sales		336,933		331,165		971,842		937,225
Service net sales:
	Waters service			148,206		146,038		438,104		423,155
	TA service			15,439		15,962		45,776		45,094
		Total service sales		163,645		162,000		483,880		468,249
Total net sales			$	500,578	$	493,165	$	1,455,722	$	1,405,474

XML

Document and Entity Information - USD ($)	9 Months Ended
	Oct. 03, 2015	Oct. 30, 2015	Jul. 04, 2015
Document and Entity Information [Abstract]
Entity Registrant Name	WATERS CORP /DE/
Entity Trading Symbol	WAT
Entity Central Index Key	0001000697
Document Type	10-Q
Document Fiscal Period Focus	Q3
Document Period End Date	Oct. 03, 2015
Amendment Flag	false
Document Fiscal Year Focus	2015
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 10,641,836,000
Entity Common Stock, Shares Outstanding		81,663,790

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Recent Accounting Standard Changes and Developments

9 Months Ended

Oct. 03, 2015

Recent Accounting Standard Changes and Developments [Abstract]

Recent Accounting Standard Changes and Developments

12 Recent Accounting Standard Changes and Developments

Recently Issued Accounting Standards

In May 2014, amended accounting guidance was issued regarding the recognition of revenue from contracts with customers. The objective of this guidance is to significantly enhance comparability and clarify principles of revenue recognition practices across entities, industries, jurisdictions and capital markets. This guidance was originally effective for annual and interim reporting periods beginning after December 15, 2016; however, the Financial Accounting Standards Board has amended the standard in August 2015 to delay the effective period by one year. Adoption prior to December 15, 2016 is not permitted. The Company is currently evaluating its adoption method and the potential impact that the adoption of this standard will have on the Company's financial position, results of operations and cash flows.

In April 2015, accounting guidance was issued which requires debt issuance costs to be presented in the balance sheet as a direct deduction from the carrying value of the associated debt liability. Subsequently, the Securities and Exchange Commission staff announced that it will not object when debt issuance costs related to a revolving debt arrangement are presented as an asset regardless of whether or not there is an outstanding balance on the revolving debt arrangement.This guidance is effective for annual and interim reporting periods beginning after December 15, 2015 and early adoption is permitted. The Company is currently evaluating the potential impact that the adoption of this standard will have on the Company's financial position, results of operations and cash flows.

In the third quarter of 2015, accounting guidance was issued which clarifies the measurement of inventory. The new guidance requires inventory to be measured at the lower of cost and net realizable value. Net realizable value is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. This guidance is effective for annual and interim periods beginning after December 15, 2016. The Company is currently evaluating the potential impact that the adoption of this standard will have on the Company's financial position, results of operations and cash flows.

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Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Income Statement [Abstract]
Product sales	$ 336,933	$ 331,165	$ 971,842	$ 937,225
Service sales	163,645	162,000	483,880	468,249
Total net sales	500,578	493,165	1,455,722	1,405,474
Cost of product sales	138,014	133,868	398,168	387,646
Cost of service sales	68,790	68,354	206,589	204,148
Total cost of sales	206,804	202,222	604,757	591,794
Gross profit	293,774	290,943	850,965	813,680
Selling and administrative expenses	124,655	122,226	367,066	380,791
Research and development expenses	30,703	27,279	90,209	79,002
Purchased intangibles amortization	2,573	2,725	7,547	8,018
Operating income	135,843	138,713	386,143	345,869
Interest expense	(9,017)	(9,062)	(27,038)	(24,522)
Interest income	2,736	1,762	7,576	4,920
Income from operations before income taxes	129,562	131,413	366,681	326,267
Provision for income taxes	13,281	17,916	48,682	45,939
Net income	$ 116,281	$ 113,497	$ 317,999	$ 280,328
Net income per basic common share	$ 1.42	$ 1.36	$ 3.85	$ 3.32
Weighted-average number of basic common shares	82,036	83,663	82,552	84,375
Net income per diluted common share	$ 1.40	$ 1.34	$ 3.82	$ 3.29
Weighted-average number of diluted common shares and equivalents	82,784	84,401	83,305	85,162

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Debt

9 Months Ended

Oct. 03, 2015

Debt [Abstract]

Debt Disclosure

6  Debt

In June 2013, the Company entered into a credit agreement that provides for a $1.1 billion revolving facility and a $300 million term loan facility. In April2015, Waters entered into an amendment to thisagreement (the “Amended Credit Agreement”). The Amended Credit Agreement provides for an increase of the revolving commitments from $1.1 billion to $1.3 billion and extends the maturity of the original credit agreement from June 25, 2018 until April 23, 2020. The Company plans to use future proceeds from the revolving facility for general corporate purposes.

The interest rates applicable to the Amended Credit Agreement are, at the Company's option, equal to either the alternate base rate calculated daily (which is a rate per annum equal to the greatest of (a) the prime rate in effect on such day, (b)the federal funds effective rate in effect on such day plus 1/2% per annum, or (c) the adjusted LIBO rate on such day (or if such day is not a business day, the immediately preceding business day) for a deposit in U.S. dollars with a maturity of one month plus 1% per annum) or the applicable 1, 2, 3 or 6 month adjusted LIBO rate, in each case, plus an interest rate margin based upon the Company's leverage ratio, which can range between 0 to 12.5 basis points for alternate base rate loans and between 80 basis points and 117.5 basis points for adjusted LIBO rate loans.The facility fee on the Amended Credit Agreement ranges between 7.5 basis points and 20 basis points.The Amended Credit Agreement requires that the Company comply with an interest coverage ratio test of not less than 3.50:1 as of the end of any fiscal quarter for any period of four consecutive fiscal quartersand a leverage ratio test of not more than 3.50:1 as of the end of any fiscal quarter. In addition, the Amended Credit Agreement includes negative covenants,affirmative covenants, representations and warranties and events of default that are customary for investment grade credit facilities.

At October 3, 2015, $125 million of the outstanding portion of the revolving facilitywas classified as short-term liabilities in the consolidated balance sheet due to the fact that the Company expects torepay this portion of the borrowing under the revolving line of credit within the next twelve months. The remaining $705 million of the outstanding portion of the revolving facility wasclassified as long-term liabilities in the consolidated balance sheet, as this portion is not expected to be repaid within the next twelve months.

As of October 3, 2015 and December 31, 2014, the Company had a total of $500 million and $600 million of outstanding senior unsecured notes, respectively.Interest on thefixed rate senior unsecured notes is payable semi-annually each year. Interest on the floating rate senior unsecured notes is payable quarterly. The Company may prepay all or some of the senior unsecured notes at any time in an amount not less than 10% of the aggregate principal amount outstanding, plus the applicable make-whole amount or prepayment premium for Series H senior unsecured notes. In the event of a change in controlof the Company (as defined in the note purchase agreement), the Company may be required to prepay the senior unsecured notes at a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest.These senior unsecured notes require that the Company comply with an interest coverage ratio test of not less than 3.50:1for any period of four consecutive fiscal quarters and a leverage ratio test of not more than 3.50:1 as of the end of any fiscal quarter. In addition, these senior unsecured notes include customary negative covenants,affirmative covenants, representations and warranties and events of default.

The Company had the following outstanding debt at October 3, 2015 and December 31, 2014(in thousands):

		October 3, 2015		December 31, 2014
Foreign subsidiary lines of credit		$	176	$	243
Senior unsecured notes - Series A - 3.75%, due February 2015			-		100,000
Senior unsecured notes - Series C - 2.50%, due March 2016			50,000		-
Credit agreements			125,000		125,000
	Total notes payable and debt		175,176		225,243
Senior unsecured notes - Series B - 5.00%, due February 2020			100,000		100,000
Senior unsecured notes - Series C - 2.50%, due March 2016			-		50,000
Senior unsecured notes - Series D - 3.22%, due March 2018			100,000		100,000
Senior unsecured notes - Series E - 3.97%, due March 2021			50,000		50,000
Senior unsecured notes - Series F - 3.40%, due June 2021			100,000		100,000
Senior unsecured notes - Series G - 3.92%, due June 2024			50,000		50,000
Senior unsecured notes - Series H - floating rate*, due June 2024			50,000		50,000
Credit agreements			1,005,000		740,000
	Total long-term debt		1,455,000		1,240,000
Total debt		$	1,630,176	$	1,465,243
* Series H senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.25%.

As of October 3, 2015 and December 31, 2014, the Company had a total amount available to borrow of $468million and $533 million, respectively, after outstanding letters of credit, under the credit agreements. The weighted-average interest rates applicable to the senior unsecured notes and credit agreement borrowings collectively were 2.06% and 2.31% at October 3, 2015 and December 31, 2014, respectively.As of October 3, 2015, the Company was in compliance with all debt covenants.

The Company and its foreign subsidiaries also had available short-term lines of credit totaling $98 million and$88million at October 3, 2015 and December 31, 2014, respectively, for the purpose of short-term borrowing and issuance of commercial guarantees. At October 3, 2015 and December 31, 2014, the weighted-average interest rates applicable to these short-term borrowings were2.00%and 1.48%, respectively.

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Goodwill and Other Intangibles

9 Months Ended

Oct. 03, 2015

Goodwill and Other Intangibles [Abstract]

Goodwill and Other Intangibles

5  Goodwill and Other Intangibles

The carrying amount of goodwill was $352 million and $355 million at October 3, 2015 and December 31, 2014, respectively. During the nine months ended October 3, 2015, the Company's acquisition increased goodwill by $1 million (see Note 4) and the effect of foreign currency translation decreased goodwill by $4 million.

The Company's intangible assets included in the consolidated balance sheets are detailed as follows (in thousands):

		October 3, 2015						December 31, 2014
						Weighted-						Weighted-
		Gross				Average		Gross				Average
		Carrying		Accumulated		Amortization		Carrying		Accumulated		Amortization
		Amount		Amortization		Period		Amount		Amortization		Period
Capitalized software		$	335,517	$	202,468	7	years	$	334,280	$	196,477	7	years
Purchased intangibles			163,144		117,632	11	years		163,855		112,279	11	years
Trademarks and IPR&D			13,967		-				14,095		-
Licenses			5,499		3,995	6	years		5,371		3,634	6	years
Patents and other
	intangibles		61,773		32,999	8	years		56,513		29,353	8	years
	Total	$	579,900	$	357,094	8	years	$	574,114	$	341,743	8	years

During the nine months ended October 3, 2015, the Company acquired $4 million of purchased intangibles as a result of the acquisition of ElectroForce(see Note 4). During the nine months ended October 3, 2015, the effect of foreign currency translation decreased the gross carrying value of intangible assets and accumulated amortization for intangible assets by $31 million and $18 million, respectively. Amortization expense for intangible assets was $12 million for boththe three months endedOctober 3, 2015and September 27, 2014.Amortization expense for intangible assets was $34 million and $36millionfor the nine months endedOctober 3, 2015and September 27, 2014, respectively.Amortization expense for intangible assets is estimated to be approximately $44 million per year for each of the next five years.

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Earnings Per Share (Policies)

9 Months Ended

Oct. 03, 2015

Earnings Per Share [Abstract]

Earnings Per Share Policy

The effect of dilutive securities was calculated using the treasury stock method.

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Basis of Presentation and Summary of Significant Accounting Policies (Policies)

9 Months Ended

Oct. 03, 2015

Basis of Presentation and Summary of Significant Accounting Policies (Policies) [Abstract]

Nature of Operations

Waters Corporation (“Waters®” or the “Company”) is an analytical instrument manufacturer that primarily designs, manufactures, sells and services, through its Waters Division, high performance liquid chromatography (“HPLC”), ultra performance liquid chromatography (“UPLC®” and together with HPLC, referred to as “LC”) and mass spectrometry (“MS”) technology systems and support products, including chromatography columns, other consumable products and comprehensive post-warranty service plans. These systems are complementary products that are frequently employed together (“LC-MS”) and sold as integrated instrument systems using a common software platform. LC is a standard technique and is utilized in a broad range of industries to detect, identify, monitor and measure the chemical, physical and biological composition of materials, and to purify a full range of compounds. MS instruments are used in drug discovery and development, including clinical trial testing, the analysis of proteins in disease processes (known as “proteomics”), nutritional safety analysis and environmental testing. LC-MS instruments combine a liquid phase sample introduction and separation system with mass spectrometric compound identification and quantification. Through its TA Division (“TA®”), the Company primarily designs, manufactures, sells and services thermal analysis, rheometry and calorimetry instruments, which are used in predicting the suitability and stability of fine chemicals, pharmaceuticals, water, polymers, metals and viscous liquids for various industrial, consumer goods and healthcare products, as well as for life science research. The Company is also a developer and supplier of software-based products that interface with the Company's instruments, as well as other suppliers' instruments, and are typically purchased by customers as part of the instrument system.

Fiscal Period Description

The Company's interim fiscal quarter typically ends on the thirteenth Saturday of each quarter. Since the Company's fiscal year end is December 31, the first and fourth fiscal quarters mayhave more or less than thirteen complete weeks. The Company's third fiscal quarters for 2015 and 2014 ended on October 3, 2015 and September 27, 2014, respectively.

Basis of Accounting

The accompanying unaudited interim consolidated financial statements have been prepared in accordance with the instructions to the Quarterly Report on Form 10-Q and do not include all of the information and note disclosures required by generally accepted accounting principles (“GAAP”) in the United States of America.

It is management's opinion that the accompanying interim consolidated financial statements reflect all adjustments (which are normal and recurring) that are necessary for a fair statement of the results for the interim periods. The interim consolidated financial statements should be read in conjunction with the consolidated financial statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2014, as filed with the U.S. Securities and Exchange Commission on February 27, 2015.

Consolidation Policy

The consolidated financial statements include the accounts of the Company and its subsidiaries, most of which are wholly owned. All material inter-company balances and transactions have been eliminated.

Use of Estimates

The preparation of consolidated financial statements in conformity with GAAP requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities, revenues and expenses, and related disclosure of contingent liabilities at the dates of the financial statements. Actual amounts may differ from these estimates under different assumptions or conditions.

Cash, Cash Equivalents and Investments Policy

Cash equivalents represent highly liquid investments, with original maturities of 90 days or less, while investments with longer maturities are classified as investments.

Fair Value Measurements Policy

Fair Value Measurements

In accordance with the accounting standards for fair value measurements and disclosures, certainof the Company's assets and liabilities are measured at fair value on a recurring basis as of October 3, 2015 and December 31, 2014. Fair values determined by Level 1 inputs utilize observable data, such as quoted prices in active markets. Fair values determined by Level 2 inputs utilize data points other than quoted prices in active markets that are observable either directly or indirectly. Fair values determined by Level 3 inputs utilize unobservable data points for which there is little or no market data, which require the reporting entity to develop its own assumptions.

Fair Value of Other Financial Instruments

The Company's cash, accounts receivable, accounts payable and variable interest rate debt are recorded at cost,which approximates fair value.

Product Warranty Policy

Product Warranty Costs

The Company accrues estimated product warranty costs at the time of sale, which are included in cost of sales in the consolidated statements of operations. While the Company engages in extensive product quality programs and processes, including actively monitoring and evaluating the quality of its component suppliers, the Company's warranty obligation is affected by product failure rates, material usage and service delivery costs incurred in correcting a product failure. The amount of the accrued warranty liability is based on historical information, such as past experience, product failure rates, number of units repaired and estimated costs of material and labor. The liability is reviewed for reasonableness at least quarterly.

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Earnings Per Share

9 Months Ended

Oct. 03, 2015

Earnings Per Share [Abstract]

Earnings Per Share

9  Earnings Per Share

Basic and diluted earnings per share (“EPS”) calculations are detailed as follows (in thousands, except per share data):

		Three Months Ended October 3, 2015
		Net Income		Weighted-Average Shares	Per Share
		(Numerator)		(Denominator)	Amount
Net income per basic common share		$	116,281	82,036	$	1.42
Effect of dilutive stock option, restricted
	stock and restricted stock unit securities		-	748		(0.02)
Net income per diluted common share		$	116,281	82,784	$	1.40

		Three Months Ended September 27, 2014
		Net Income		Weighted-Average Shares	Per Share
		(Numerator)		(Denominator)	Amount
Net income per basic common share		$	113,497	83,663	$	1.36
Effect of dilutive stock option, restricted
	stock and restricted stock unit securities		-	738		(0.02)
Net income per diluted common share		$	113,497	84,401	$	1.34

		Nine Months Ended October 3, 2015
		Net Income		Weighted-Average Shares	Per Share
		(Numerator)		(Denominator)	Amount
Net income per basic common share		$	317,999	82,552	$	3.85
Effect of dilutive stock option, restricted
	stock and restricted stock unit securities		-	753		(0.03)
Net income per diluted common share		$	317,999	83,305	$	3.82

		Nine Months Ended September 27, 2014
		Net Income		Weighted-Average Shares	Per Share
		(Numerator)		(Denominator)	Amount
Net income per basic common share		$	280,328	84,375	$	3.32
Effect of dilutive stock option, restricted
	stock and restricted stock unit securities		-	787		(0.03)
Net income per diluted common share		$	280,328	85,162	$	3.29

For the three and nine months endedOctober 3, 2015, the Company had 0.6 million and 0.7 million stock optionsthat were antidilutive, respectively, due to having higher exercise prices than the Company's average stock price during the period. For both the three and nine months endedSeptember 27, 2014, the Company had 0.5 million stock optionsthat were antidilutive. These securities were not included in the computation of diluted EPS. The effect of dilutive securities was calculated using the treasury stock method.

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Income Taxes

9 Months Ended

Oct. 03, 2015

Income Taxes [Abstract]

Income Taxes

7  Income Taxes

The Company's effective tax rate was 10.3% and 13.6% for the three months ended October 3, 2015 and September 27, 2014, respectively. The Company's effective tax rate was 13.3%and 14.1%for the nine months ended October 3, 2015and September 27, 2014, respectively. The differences between the effective tax rates for 2015 as compared to 2014 were primarily attributable to differences in the proportionate amounts of pre-tax income recognized in jurisdictions with different effective tax rates, and the recognition of a $2 million discrete benefit for additional U.K. tax credits in the three months ended October 3, 2015. In the third quarter of 2015, the Company entered into a new agreement with Singapore tax authorities that extended a 0% contractual tax rate through March 2021.The contractual tax rate is dependent upon achievement of certain contractual milestones,which the Company expects tomeet. The current statutory tax rate in Singapore is 17%.

The Company accounts for its uncertain tax return reporting positions in accordance with the accounting standards for income taxes, which require financial statement reporting of the expected future tax consequences of uncertain tax reporting positions on the presumption that all concerned tax authorities possess full knowledge of those reporting positions, as well as all of the pertinent facts and circumstances, but prohibit any discounting of unrecognized tax benefits associated with those reporting positions for the time value of money.

The following is a summary of the activity of the Company's unrecognized tax benefits for the nine months ended October 3, 2015 and September 27, 2014 (in thousands):

		October 3, 2015		September 27, 2014
Balance at the beginning of the period		$	19,596	$	24,716
	Net changes in uncertain tax benefits		(861)		(3,268)
Balance at the end of the period		$	18,735	$	21,448

With limited exceptions, the Company is no longer subject to tax audit examinations in significant jurisdictions for the years ended on or before December 31, 2011. However, carryforward attributes that were generated in years beginning on or before January 1, 2012 may still be adjusted upon examination by tax authorities if the attributes are utilized. The Company continuously monitors the lapsing of statutes of limitations on potential tax assessments for related changes in the measurement of unrecognized tax benefits, related net interest and penalties, and deferred tax assets and liabilities. As of October 3, 2015, the Company expects to record additional reductions in the measurement of its unrecognized tax benefits and related net interest and penalties of approximately $5 million within the next twelve months due to the lapsing of statutes of limitations on potential tax assessments. The Company does not expect to record any other material reductions in the measurement of its unrecognized tax benefits within the next twelve months.

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Stock-Based Compensation

9 Months Ended

Oct. 03, 2015

Stock-Based Compensation [Abstract]

Stock-Based Compensation

8  Stock-Based Compensation

The Company maintains various shareholder-approved, stock-based compensation plans which allow for the issuance of incentive or non-qualified stock options, stock appreciation rights, restricted stock or other types of awards (e.g. restricted stock units).

The Company accounts for stock-based compensation costs in accordance with the accounting standards for stock-based compensation, which require that all share-based payments to employees be recognized in the statements of operations based on their grant date fair values. The Company recognizes the expense using the straight-line attribution method. The stock-based compensation expense recognized in the consolidated statements of operations is based on awards that ultimately are expected to vest; therefore, the amount of expense has been reduced for estimated forfeitures. The stock-based compensation accounting standards require forfeitures to be estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. Forfeitures were estimated based on historical experience. If actual results differ significantly from these estimates, stock-based compensation expense and the Company's results of operations could be materially impacted. In addition, if the Company employs different assumptions in the application of these standards, the compensation expense that the Company records in the future periods may differ significantly from what the Company has recorded in the current period.

The consolidated statements of operations for the three and nine months endedOctober 3, 2015 and September 27, 2014 include the following stock-based compensation expense related to stock option awards, restricted stock, restricted stock unit awards and the employee stock purchase plan (in thousands):

		Three Months Ended				Nine Months Ended
		October 3, 2015		September 27, 2014		October 3, 2015		September 27, 2014
Cost of sales		$	668	$	633	$	1,990	$	2,061
Selling and administrative expenses			6,626		6,355		19,686		19,345
Research and development expenses			1,053		1,119		3,281		3,054
	Total stock-based compensation	$	8,347	$	8,107	$	24,957	$	24,460

Stock Options

In determining the fair value of the stock options, the Company makes a variety of assumptions and estimates, including volatility measures, expected yields and expected stock option lives. The fair value of each option grant was estimated on the date of grant using the Black-Scholes option pricing model. The Company uses implied volatility on its publicly-traded options as the basis for its estimate of expected volatility. The Company believes that implied volatility is the most appropriate indicator of expected volatility because it is generally reflective of historical volatility and expectations of how future volatility will differ from historical volatility. The expected life assumption for grants is based on historical experience for the population of non-qualified stock option exercises. The risk-free interest rate is the yield currently available on U.S. Treasury zero-coupon issues with a remaining term approximating the expected term used as the input to the Black-Scholes model.The relevant data used to determine the value of the stock options granted during the nine months endedOctober 3, 2015 and September 27, 2014 are as follows:

	Nine Months Ended
Options Issued and Significant Assumptions Used to Estimate Option Fair Values	October 3, 2015	September 27, 2014
Options issued in thousands	115	32
Risk-free interest rate	1.4%	1.9%
Expected life in years	4	4
Expected volatility	0.291	0.245
Expected dividends	-	-

	Nine Months Ended
Weighted-Average Exercise Price and Fair Value of Options on the Date of Grant	October 3, 2015		September 27, 2014
Exercise price	$	121.33	$	99.22
Fair value	$	30.85	$	22.38

The following table summarizes stock option activity for the plans for the nine months endedOctober 3, 2015(in thousands, except per share data):

		Number of Shares	Price per Share					Weighted-Average Exercise Price
Outstanding at December 31, 2014		3,280	$	37.84	to	$	113.36	$	82.85
	Granted	115	$	113.88	to	$	134.37	$	121.33
	Exercised	(342)	$	37.84	to	$	98.21	$	74.44
	Canceled	(72)	$	79.05	to	$	87.06	$	83.25
Outstanding at October 3, 2015		2,981	$	38.09	to	$	134.37	$	85.29

Restricted Stock

During the nine months endedOctober 3, 2015, the Company granted ten thousand shares of restricted stock. The fair value of these awards on the grant date was $113.88 per share.

Restricted Stock Units

The following table summarizes the unvested restricted stock unit award activity for the nine months endedOctober 3, 2015 (in thousands, except for per share amounts):

		Shares	Weighted-Average Price
Unvested at December 31, 2014		533	$	94.38
	Granted	150	$	119.46
	Vested	(144)	$	85.40
	Forfeited	(12)	$	99.75
Unvested at October 3, 2015		527	$	103.85

Restricted stock units are generally granted annually in February and vest in equal annual installments over a five-year period.

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Retirement Plans

9 Months Ended

Oct. 03, 2015

Retirement Plans [Abstract]

Retirement Plans

10  Retirement Plans

The Company sponsors various retirement plans. The summary of the components of net periodic pension costs for the plans for the three and nine months endedOctober 3, 2015 and September 27, 2014 is as follows (in thousands):

		Three Months Ended
		October 3, 2015						September 27, 2014
		U.S.		U.S. Retiree		Non-U.S.		U.S.		U.S. Retiree		Non-U.S.
		Pension		Healthcare		Pension		Pension		Healthcare		Pension
		Plans		Plan		Plans		Plans		Plan		Plans
Service cost		$	-	$	(91)	$	1,337	$	-	$	196	$	1,212
Interest cost			1,570		116		402		1,623		111		592
Expected return on plan
	assets		(2,223)		(129)		(410)		(2,179)		(112)		(392)
Net amortization:
	Prior service cost (credit)		-		-		14		-		(13)		(47)
	Net actuarial loss (gain)		1,101		-		273		692		(18)		97
Net periodic pension
	cost (benefit)	$	448	$	(104)	$	1,616	$	136	$	164	$	1,462

		Nine Months Ended
		October 3, 2015						September 27, 2014
		U.S.		U.S. Retiree		Non-U.S.		U.S.		U.S. Retiree		Non-U.S.
		Pension		Healthcare		Pension		Pension		Healthcare		Pension
		Plans		Plan		Plans		Plans		Plan		Plans
Service cost		$	-	$	433	$	4,011	$	-	$	594	$	3,636
Interest cost			4,596		352		1,206		4,813		347		1,776
Expected return on plan
	assets		(6,859)		(373)		(1,230)		(6,795)		(326)		(1,176)
Net amortization:
	Prior service cost (credit)		-		-		42		-		(39)		(141)
	Net actuarial loss (gain)		2,459		-		819		1,662		(26)		291
Net periodic pension
	cost (benefit)	$	196	$	412	$	4,848	$	(320)	$	550	$	4,386

During the nine months ended October 3, 2015, the Company contributed $4 million to the Company's U.S. pension plans. During fiscal year 2015, the Company expects to contribute a total of approximately $6 million to $11 million to the Company's defined benefit plans.

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Retirement Plans (Tables)

9 Months Ended

Oct. 03, 2015

Retirement Plans [Abstract]

Defined Benefit Plan, Net Periodic Benefit Cost

The summary of the components of net periodic pension costs for the plans for the three and nine months endedOctober 3, 2015 and September 27, 2014 is as follows (in thousands):

		Three Months Ended
		October 3, 2015						September 27, 2014
		U.S.		U.S. Retiree		Non-U.S.		U.S.		U.S. Retiree		Non-U.S.
		Pension		Healthcare		Pension		Pension		Healthcare		Pension
		Plans		Plan		Plans		Plans		Plan		Plans
Service cost		$	-	$	(91)	$	1,337	$	-	$	196	$	1,212
Interest cost			1,570		116		402		1,623		111		592
Expected return on plan
	assets		(2,223)		(129)		(410)		(2,179)		(112)		(392)
Net amortization:
	Prior service cost (credit)		-		-		14		-		(13)		(47)
	Net actuarial loss (gain)		1,101		-		273		692		(18)		97
Net periodic pension
	cost (benefit)	$	448	$	(104)	$	1,616	$	136	$	164	$	1,462

		Nine Months Ended
		October 3, 2015						September 27, 2014
		U.S.		U.S. Retiree		Non-U.S.		U.S.		U.S. Retiree		Non-U.S.
		Pension		Healthcare		Pension		Pension		Healthcare		Pension
		Plans		Plan		Plans		Plans		Plan		Plans
Service cost		$	-	$	433	$	4,011	$	-	$	594	$	3,636
Interest cost			4,596		352		1,206		4,813		347		1,776
Expected return on plan
	assets		(6,859)		(373)		(1,230)		(6,795)		(326)		(1,176)
Net amortization:
	Prior service cost (credit)		-		-		42		-		(39)		(141)
	Net actuarial loss (gain)		2,459		-		819		1,662		(26)		291
Net periodic pension
	cost (benefit)	$	196	$	412	$	4,848	$	(320)	$	550	$	4,386

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Income Taxes (Policies)

9 Months Ended

Oct. 03, 2015

Income Taxes [Abstract]

Uncertain Income Tax Reporting Positions Policy

The Company accounts for its uncertain tax return reporting positions in accordance with the accounting standards for income taxes, which require financial statement reporting of the expected future tax consequences of uncertain tax reporting positions on the presumption that all concerned tax authorities possess full knowledge of those reporting positions, as well as all of the pertinent facts and circumstances, but prohibit any discounting of unrecognized tax benefits associated with those reporting positions for the time value of money.

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Marketable Securities (Tables)

9 Months Ended

Oct. 03, 2015

Cash, Cash Equivalents, and Short-term Investments [Abstract]

Schedule of Cash, Cash Equivalents and Short-term Investments

The Company's marketable securities within cash equivalents and investments included in the consolidated balance sheets are detailed as follows (in thousands):

		October 3, 2015
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gain		Loss		Value
U.S. Treasury securities		$	627,630	$	1,465	$	(47)	$	629,048
Corporate debt securities			1,233,267		895		(390)		1,233,772
Time deposits			80,931		-		-		80,931
Equity securities			77		70		-		147
	Total	$	1,941,905	$	2,430	$	(437)	$	1,943,898
Amounts included in:
	Cash equivalents	$	92,682	$	-	$	-	$	92,682
	Investments		1,849,223		2,430		(437)		1,851,216
	Total	$	1,941,905	$	2,430	$	(437)	$	1,943,898

		December 31, 2014
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gain		Loss		Value
U.S. Treasury securities		$	626,683	$	246	$	(157)	$	626,772
Foreign government securities			24,998		-		-		24,998
Corporate debt securities			984,668		125		(688)		984,105
Time deposits			64,240		-		-		64,240
Equity securities			77		70		-		147
	Total	$	1,700,666	$	441	$	(845)	$	1,700,262
Amounts included in:
	Cash equivalents	$	67,051	$	-	$	-	$	67,051
	Investments		1,633,615		441		(845)		1,633,211
	Total	$	1,700,666	$	441	$	(845)	$	1,700,262

Investments Classified by Contractual Maturity Date

The estimated fair value of marketable debt securities by maturity date is as follows (in thousands):

		October 3, 2015		December 31, 2014
Due in one year or less		$	1,063,640	$	872,872
Due after one year through three years			799,180		763,003
	Total	$	1,862,820	$	1,635,875

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Debt (Details) - USD ($)		9 Months Ended
		Oct. 03, 2015	Apr. 23, 2015	Dec. 31, 2014	Jun. 25, 2013
Debt [Line Items]
Notes payable and debt		$ 175,176,000		$ 225,243,000
Long-term debt		1,455,000,000		1,240,000,000
Total debt		$ 1,630,176,000		1,465,243,000
Senior unsecured notes - Series A [Member]
Debt [Line Items]
Stated interest rate on debt instrument		3.75%
Notes payable and debt				100,000,000
Senior unsecured notes - Series B [Member]
Debt [Line Items]
Stated interest rate on debt instrument		5.00%
Long-term debt		$ 100,000,000		100,000,000
Senior unsecured notes - Series C [Member]
Debt [Line Items]
Stated interest rate on debt instrument		2.50%
Notes payable and debt		$ 50,000,000
Long-term debt				50,000,000
Senior unsecured notes - Series D [Member]
Debt [Line Items]
Stated interest rate on debt instrument		3.22%
Long-term debt		$ 100,000,000		100,000,000
Senior unsecured notes - Series E [Member]
Debt [Line Items]
Stated interest rate on debt instrument		3.97%
Long-term debt		$ 50,000,000		50,000,000
Senior unsecured notes - Series F [Member]
Debt [Line Items]
Stated interest rate on debt instrument		3.40%
Long-term debt		$ 100,000,000		100,000,000
Senior Unsecured Notes - Series G [Member]
Debt [Line Items]
Stated interest rate on debt instrument		3.92%
Long-term debt		$ 50,000,000		50,000,000
Senior Unsecured Note - Series H [Member]
Debt [Line Items]
Interest rate terms on debt		* Series H senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.25%.
Long-term debt	[1]	$ 50,000,000		50,000,000
Foreign subsidiary lines of credit [Member]
Debt [Line Items]
Notes payable and debt		$ 176,000		$ 243,000
Weighted-average interest rate		2.00%		1.48%
Line of credit maximum borrowing capacity		$ 98,000,000		$ 88,000,000
Unsecured debt
Debt [Line Items]
Call feature on debt instrument		The Company may prepay all or some of the senior unsecured notes at any time in an amount not less than 10% of the aggregate principal amount outstanding, plus the applicable make-whole amount or prepayment premium for Series H senior unsecured notes. In the event of a change in control of the Company (as defined in the note purchase agreement), the Company may be required to prepay the senior unsecured notes at a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest.
Debt covenant description		These senior unsecured notes require that the Company comply with an interest coverage ratio test of not less than 3.50:1 for any period of four consecutive fiscal quarters and a leverage ratio test of not more than 3.50:1 as of the end of any fiscal quarter.
Long-term debt		$ 500,000,000		600,000,000
Credit agreements
Debt [Line Items]
Interest rate terms on debt		The interest rates applicable to the Amended Credit Agreement are, at the Company’s option, equal to either the alternate base rate calculated daily (which is a rate per annum equal to the greatest of (a) the prime rate in effect on such day, (b) the federal funds effective rate in effect on such day plus 1/2% per annum, or (c) the adjusted LIBO rate on such day (or if such day is not a business day, the immediately preceding business day) for a deposit in U.S. dollars with a maturity of one month plus 1% per annum) or the applicable 1, 2, 3 or 6 month adjusted LIBO rate, in each case, plus an interest rate margin based upon the Company’s leverage ratio, which can range between 0 to 12.5 basis points for alternate base rate loans and between 80 basis points and 117.5 basis points for adjusted LIBO rate loans.
Debt facility fee		The facility fee on the Amended Credit Agreement ranges between 7.5 basis points and 20 basis points.
Debt covenant description		The Amended Credit Agreement requires that the Company comply with an interest coverage ratio test of not less than 3.50:1 as of the end of any fiscal quarter for any period of four consecutive fiscal quarters and a leverage ratio test of not more than 3.50:1 as of the end of any fiscal quarter.
Notes payable and debt		$ 125,000,000		125,000,000
Long-term debt		1,005,000,000		740,000,000
Unused borrowing capacity		468,000,000		$ 533,000,000
Credit agreements | Term loan facility [Member]
Debt [Line Items]
Face value of debt					$ 300,000,000
Credit agreements | Revolving facilities [Member]
Debt [Line Items]
Face value of debt			$ 1,300,000,000		$ 1,100,000,000
Notes payable and debt		125,000,000
Long-term debt		$ 705,000,000
Credit agreements and unsecured debt [Member]
Debt [Line Items]
Weighted-average interest rate		2.06%		2.31%

[1] * Series H senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.25%.

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Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014	Oct. 03, 2015	Sep. 27, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 116,281	$ 113,497	$ 317,999	$ 280,328
Foreign currency translation	(10,931)	(48,671)	(53,322)	(16,071)
Unrealized gains (losses) on investments before income taxes	1,814	(645)	2,397	91
Income tax (expense) benefit from unrealized gains (losses) on investments	(68)	42	(97)	11
Unrealized gains (losses) on investments, net of tax	1,746	(603)	2,300	102
Retirement liability adjustment before reclassifications	(511)		1,070	(931)
Retirement liability amounts reclassified to selling and administrative expenses	1,478	516	3,320	1,548
Retirement liability adjustment before income taxes	967	516	4,390	617
Income tax expense from retirement liability adjustment	(325)	(400)	(1,479)	(603)
Retirement liability adjustment, net of tax	642	116	2,911	14
Other comprehensive loss	(8,543)	(49,158)	(48,111)	(15,955)
Comprehensive income	$ 107,738	$ 64,339	$ 269,888	$ 264,373

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Acquisitions

9 Months Ended

Oct. 03, 2015

Acquisitions [Abstract]

Acquisitions

4 Acquisitions

The Company accounts for business acquisitions under the accounting standards for business combinations.The results of each acquisition have been included in the Company's consolidated results as of the acquisition date and the purchase price of an acquisition is allocated to tangible and intangible assets and assumed liabilities based on their estimated fair values. Any excess of the fair value consideration transferred over the estimated fair values of the net assets acquired is recognized as goodwill.

On May 22, 2015, the Company acquired the net assets of the ElectroForce®business of the Bose Corporation (“ElectroForce”), a manufacturer oftesting systems, for approximately $9 million in cash. ElectroForce's core business is the manufacturing of dynamic mechanical testing systems used to characterize medical devices, biologic and engineered materials. The ElectroForce test instruments are based on unique motor designs that are quiet, energy-efficient, scalable and deliver high performance over a wide range of force and frequency. ElectroForce was acquired to expand the TA Division's product offering into new markets, while leveraging the technology, infrastructure and customer bases of the combined organizations.The Company has allocated $4 million of the purchase price to intangible assets comprised of technology, customer relationships and trade name. The Company is amortizing the technology and customer relationships over ten years and five years, respectively.The remaining purchase price of $1 million was accounted for as goodwill, which is deductible for tax purposes.

The principal factor that resulted in recognition of goodwill in the acquisition of ElectroForce is that the purchase price was based, in part, on cash flow projections assuming the integration of any acquired technology, distribution channels and products with the Company's products, which is of considerably greater value than utilizing the acquired company's technology, customer access or products on a stand-alone basis. The goodwill also includes value assigned to assembled workforce, which cannot be recognized as an intangible asset.

In this acquisition, the sellers provided the Company with customary representations, warranties and indemnification, which would be settled in the future if and when a breach of the contractual representation or warranty condition occurs. The impact of the acquisition of ElectroForce on the Company's revenues and net income since the acquisition date for the nine months ended October 3, 2015 was immaterial.

The fair values of the assets and liabilities acquired were determined using various income-approach valuation techniques, which use Level 3 inputs. The following table presents the fair values as of the acquisition date, as determined by the Company, of 100% of the assets and liabilities owned and recorded in connection with the acquisition of ElectroForce(in thousands):

Accounts receivable and other current assets		$	1,520
Inventory			4,489
Property, plant and equipment			699
Intangible assets			3,700
Goodwill			1,118
	Total assets acquired		11,526
Accrued expenses and other current liabilities			2,118
	Cash consideration paid	$	9,408

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Inventories (Tables)

9 Months Ended

Oct. 03, 2015

Inventory Items, Net Of Reserves Alternative [Abstract]

Inventory, Net of Reserves

Inventories are classified as follows (in thousands):

		October 3, 2015		December 31, 2014
Raw materials		$	94,226	$	84,952
Work in progress			21,814		16,749
Finished goods			165,746		144,729
	Total inventories	$	281,786	$	246,430

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Inventories (Details) - USD ($) $ in Thousands	Oct. 03, 2015	Dec. 31, 2014
Inventory Items, Net Of Reserves Alternative [Abstract]
Raw materials	$ 94,226	$ 84,952
Work in progress	21,814	16,749
Finished goods	165,746	144,729
Total inventories	$ 281,786	$ 246,430

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Acquisitions (Policies)

9 Months Ended

Oct. 03, 2015

Acquisitions [Abstract]

Business Combinations Policy

The Company accounts for business acquisitions under the accounting standards for business combinations.The results of each acquisition have been included in the Company's consolidated results as of the acquisition date and the purchase price of an acquisition is allocated to tangible and intangible assets and assumed liabilities based on their estimated fair values. Any excess of the fair value consideration transferred over the estimated fair values of the net assets acquired is recognized as goodwill.