10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

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

For the quarterly period ended October 1, 2016

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  ☒    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    ☐  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	☒	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  ☒

Indicate the number of shares outstanding of the registrant’s common stock as of October 28, 2016: 80,577,823

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 1, 2016 and December 31, 2015		1
	Consolidated Statements of Operations (unaudited) for the three months ended October 1, 2016 and October 3, 2015		2
	Consolidated Statements of Operations (unaudited) for the nine months ended October 1, 2016 and October 3, 2015		3
	Consolidated Statements of Comprehensive Income (unaudited) for the three and nine months ended October 1, 2016 and October 3, 2015		4
	Consolidated Statements of Cash Flows (unaudited) for the nine months ended October 1, 2016 and October 3, 2015		5
	Condensed Notes to Consolidated Financial Statements (unaudited)		6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		22
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		30
Item 4.	Controls and Procedures		30
PART II	OTHER INFORMATION
Item 1.	Legal Proceedings		31
Item 1A.	Risk Factors		31
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		31
Item 6.	Exhibits		32
	Signature		33

WATERS CORPORATION AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(IN THOUSANDS, EXCEPT PER SHARE DATA)

(unaudited)

	October 1, 2016			December 31, 2015
ASSETS
Current assets:
Cash and cash equivalents	$	430,209		$	487,665
Investments		2,282,806			1,911,598
Accounts receivable, less allowances for doubtful accounts and sales returns of $10,065 and $7,496 at October 1, 2016 and December 31, 2015, respectively		441,768			468,315
Inventories		303,183			263,415
Other current assets		76,404			82,540
Total current assets		3,534,370			3,213,533
Property, plant and equipment, net		329,721			333,355
Intangible assets, net		221,619			218,022
Goodwill		356,446			356,864
Other assets		134,626			146,903
Total assets	$	4,576,782		$	4,268,677
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Notes payable and debt	$	125,176		$	175,309
Accounts payable		67,765			70,573
Accrued employee compensation		41,456			54,653
Deferred revenue and customer advances		174,716			141,505
Accrued income taxes		13,610			14,894
Accrued warranty		13,535			13,349
Other current liabilities		83,243			93,793
Total current liabilities		519,501			564,076
Long-term liabilities:
Long-term debt		1,656,832			1,493,027
Long-term portion of retirement benefits		66,493			77,063
Long-term income tax liabilities		11,337			14,884
Other long-term liabilities		63,479			60,776
Total long-term liabilities		1,798,141			1,645,750
Total liabilities		2,317,642			2,209,826
Commitments and contingencies (Notes 6, 7 and 11)
Stockholders’ equity:
Preferred stock, par value $0.01 per share, 5,000 shares authorized, none issued at October 1, 2016 and December 31, 2015		—			—
Common stock, par value $0.01 per share, 400,000 shares authorized, 158,565 and 157,677 shares issued, 80,561 and 81,472 shares outstanding at October 1, 2016 and December 31, 2015, respectively		1,586			1,577
Additional paid-in capital		1,594,099			1,490,342
Retained earnings		5,210,691			4,863,566
Treasury stock, at cost, 78,004 and 76,205 shares at October 1, 2016 and December 31, 2015, respectively		(4,391,832	)		(4,149,908	)
Accumulated other comprehensive loss		(155,404	)		(146,726	)
Total stockholders’ equity		2,259,140			2,058,851
Total liabilities and stockholders’ equity	$	4,576,782		$	4,268,677

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 1, 2016			October 3, 2015
Revenues:
Product sales	$	349,934		$	336,933
Service sales		176,896			163,645
Total net sales		526,830			500,578
Costs and operating expenses:
Cost of product sales		145,623			138,014
Cost of service sales		72,721			68,790
Selling and administrative expenses		123,861			124,655
Research and development expenses		30,418			30,703
Purchased intangibles amortization		2,476			2,573
Total costs and operating expenses		375,099			364,735
Operating income		151,731			135,843
Interest expense		(11,707	)		(9,017	)
Interest income		5,426			2,736
Income from operations before income taxes		145,450			129,562
Provision for income taxes		20,594			13,281
Net income	$	124,856		$	116,281
Net income per basic common share	$	1.55		$	1.42
Weighted-average number of basic common shares		80,677			82,036
Net income per diluted common share	$	1.53		$	1.40
Weighted-average number of diluted common shares and equivalents		81,388			82,784

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 1, 2016			October 3, 2015
Revenues:
Product sales	$	1,017,478		$	971,842
Service sales		521,158			483,880
Total net sales		1,538,636			1,455,722
Costs and operating expenses:
Cost of product sales		419,695			398,168
Cost of service sales		220,179			206,589
Selling and administrative expenses		382,793			367,066
Research and development expenses		92,434			90,209
Purchased intangibles amortization		7,531			7,547
Total costs and operating expenses		1,122,632			1,069,579
Operating income		416,004			386,143
Interest expense		(32,809	)		(27,038	)
Interest income		14,340			7,576
Income from operations before income taxes		397,535			366,681
Provision for income taxes		50,410			48,682
Net income	$	347,125		$	317,999
Net income per basic common share	$	4.29		$	3.85
Weighted-average number of basic common shares		80,923			82,552
Net income per diluted common share	$	4.26		$	3.82
Weighted-average number of diluted common shares and equivalents		81,573			83,305

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 1, 2016			October 3, 2015			October 1, 2016			October 3, 2015
Net income	$	124,856		$	116,281		$	347,125		$	317,999
Other comprehensive income (loss):
Foreign currency translation		2,480			(10,931	)		(12,954	)		(53,322	)
Unrealized (losses) gains on investments before income taxes		(1,393	)		1,814			3,777			2,397
Income tax benefit (expense)		61			(68	)		(108	)		(97	)
Unrealized (losses) gains on investments, net of tax		(1,332	)		1,746			3,669			2,300
Retirement liability adjustment before reclassifications		(183	)		(511	)		(682	)		1,070
Amounts reclassified to selling and administrative expenses		832			1,478			2,452			3,320
Retirement liability adjustment before income taxes		649			967			1,770			4,390
Income tax expense		(272	)		(325	)		(1,163	)		(1,479	)
Retirement liability adjustment, net of tax		377			642			607			2,911
Other comprehensive income (loss)		1,525			(8,543	)		(8,678	)		(48,111	)
Comprehensive income	$	126,381		$	107,738		$	338,447		$	269,888

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 1, 2016			October 3, 2015
Cash flows from operating activities:
Net income	$	347,125		$	317,999
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation		32,604			24,957
Deferred income taxes		4,924			1,821
Depreciation		38,854			33,202
Amortization of intangibles		33,510			33,693
Gain on sale of assets		(1,500	)		(1,377	)
Change in operating assets and liabilities, net of acquisitions:
Decrease in accounts receivable		39,471			6,887
Increase in inventories		(39,988	)		(35,488	)
(Increase) decrease in other current assets		(2,906	)		2,183
Increase in other assets		(4,667	)		(11,614	)
(Decrease) increase in accounts payable and other current liabilities		(29,179	)		4,234
Increase in deferred revenue and customer advances		29,244			31,099
Increase (decrease) in other liabilities		8,611			(954	)
Net cash provided by operating activities		456,103			406,642
Cash flows from investing activities:
Additions to property, plant, equipment and software capitalization		(72,296	)		(72,250	)
Business acquisitions, net of cash acquired		(5,654	)		(9,408	)
Purchases of investments		(1,923,054	)		(1,467,078	)
Maturities and sales of investments		1,558,330			1,249,073
Proceeds from sale of assets		4,000			5,154
Net cash used in investing activities		(438,674	)		(294,509	)
Cash flows from financing activities:
Proceeds from debt issuances		440,177			285,073
Payments on debt		(325,323	)		(120,140	)
Payments of debt issuance costs		(1,705	)		(2,382	)
Proceeds from stock plans		58,572			28,948
Purchases of treasury shares		(241,924	)		(255,111	)
Excess tax benefit related to stock option plans		12,914			5,689
(Payments for) proceeds from derivative contracts		(9,525	)		5
Net cash used in financing activities		(66,814	)		(57,918	)
Effect of exchange rate changes on cash and cash equivalents		(8,071	)		(16,874	)
(Decrease) increase in cash and cash equivalents		(57,456	)		37,341
Cash and cash equivalents at beginning of period		487,665			422,177
Cash and cash equivalents at end of period	$	430,209		$	459,518

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 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. In addition, the Company designs, manufactures, sells and services thermal analysis, rheometry and calorimetry instruments through its TA^® product line. These instruments 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 pharmaceutical 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 2016 and 2015 ended on October 1, 2016 and October 3, 2015, 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, 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, 2015, as filed with the U.S. Securities and Exchange Commission on February 26, 2016.

Translation of Foreign Currencies

For most of the Company’s foreign operations, assets and liabilities are translated into U.S. dollars at exchange rates prevailing on the balance sheet date, while revenues and expenses are translated at average exchange rates prevailing during the period. The functional currency of each of the Company’s foreign operating subsidiaries is the local currency of that particular country, except for the Company’s subsidiaries in Hong Kong, Singapore and the Cayman Islands, where the underlying transactional cash flows are denominated in currencies other than the respective local currency of domicile. The functional currency of the Hong Kong, Singapore and Cayman Islands subsidiaries is the U.S. dollar, based on the respective entity’s cash flows.

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 the U.S. dollar. As of October 1, 2016 and December 31, 2015, $2,664 million out of $2,713 million and $2,346 million out

6

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

of $2,399 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. In addition, $263 million out of $2,713 million and $248 million out of $2,399 million of cash, cash equivalents and investments were held in currencies other than the U.S. dollar at October 1, 2016 and December 31, 2015, respectively.

Other Investments

During the three and nine months ended October 1, 2016, the Company sold an equity investment that was accounted for using the equity method of accounting and was included in other assets in the consolidated balance sheet for $4 million in cash. The investment had a carrying value of $2 million, which resulted in a gain on the sale of $2 million.

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 1, 2016 and December 31, 2015. 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 1, 2016 (in thousands):

	Total at October 1, 2016		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	$	556,148	$	—	$	556,148	$	—
Foreign government securities		18,002		—		18,002		—
Corporate debt securities		1,572,848		—		1,572,848		—
Time deposits		221,034		—		221,034		—
Equity securities		147		—		147		—
Other cash equivalents		3,000		—		3,000		—
Waters 401(k) Restoration Plan assets		30,373		—		30,373		—
Foreign currency exchange contracts		376		—		376		—
Total	$	2,401,928	$	—	$	2,401,928	$	—
Liabilities:
Contingent consideration	$	4,805	$	—	$	—	$	4,805
Foreign currency exchange contracts		151		—		151		—
Total	$	4,956	$	—	$	151	$	4,805

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, 2015 (in thousands):

	Total at December 31, 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	$	627,156	$	—	$	627,156	$	—
Foreign government securities		15,199		—		15,199		—
Corporate debt securities		1,324,318		—		1,324,318		—
Time deposits		74,947		—		74,947		—
Equity securities		147		—		147		—
Other cash equivalents		27,000		—		27,000		—
Waters 401(k) Restoration Plan assets		35,823		—		35,823		—
Foreign currency exchange contracts		616		—		616		—
Total	$	2,105,206	$	—	$	2,105,206	$	—
Liabilities:
Contingent consideration	$	4,215	$	—	$	—	$	4,215
Foreign currency exchange contracts		402		—		402		—
Total	$	4,617	$	—	$	402	$	4,215

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 1, 2016 and December 31, 2015. There were no transfers between the levels of the fair value hierarchy during the nine months ended October 1, 2016.

Fair Value of Contingent Consideration

The fair value of the Company’s liability for contingent consideration relates to the July 2014 acquisition of Medimass Research, Development and Service Kft. and 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 estimated future results and a discount rate that reflects both the likelihood of achieving the estimated future results and 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 $5 million and $4 million at October 1, 2016 and December 31, 2015, respectively, 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, 2015 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 due to their short-term nature. The carrying value of the Company’s fixed interest rate debt was $610 million and $450 million at October 1, 2016 and December 31, 2015, 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 $618 million and $454 million at October 1, 2016 and December 31, 2015, respectively, using Level 2 inputs.

8

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

Derivative Transactions

The Company is a global company that operates in over 35 countries and, as a result, the Company’s net sales, cost of sales, operating expenses and balance sheet amounts are significantly impacted by fluctuations in foreign currency exchange rates. The Company is exposed to currency price risk on foreign currency exchange rate fluctuations when it translates its non-U.S. dollar foreign subsidiaries’ financial statements into U.S. dollars, and when any of the Company’s subsidiaries purchase or sell products or services in a currency other than its own currency.

The Company’s principal strategy in managing exposure to changes in foreign currency exchange rates is to naturally hedge the foreign-currency-denominated liabilities on the Company’s balance sheet against corresponding assets of the same currency, such that any changes in liabilities due to fluctuations in foreign currency exchange rates are typically offset by corresponding changes in assets.

The Company does not specifically enter into any derivatives that hedge foreign-currency-denominated assets, liabilities or commitments on its balance sheet, other than a portion of certain third-party accounts receivable and accounts payable, and the Company’s net worldwide intercompany receivables and payables, which are eliminated in consolidation. The Company periodically aggregates its net worldwide balances by currency and then enters into foreign currency exchange contracts that mature within 90 days to hedge a portion of the remaining balance to minimize some of the Company’s currency price risk exposure. The foreign currency exchange contracts are not designated for hedge accounting treatment.

Principal hedged currencies include the Euro, Japanese yen, British pound and Brazilian real. At October 1, 2016 and December 31, 2015, the Company held foreign currency exchange contracts with notional amounts totaling $124 million and $116 million, respectively.

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

	October 1, 2016		December 31, 2015
Other current assets	$	376	$	616
Other current liabilities	$	151	$	402

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

	Three Months Ended						Nine Months Ended
	October 1, 2016			October 3, 2015			October 1, 2016			October 3, 2015
Realized (losses) gains on closed contracts	$	(1,994	)	$	810		$	(9,525	)	$	5
Unrealized gains (losses) on open contracts		1,003			(71	)		11			(9	)
Cumulative net pre-tax (losses) gains	$	(991	)	$	739		$	(9,514	)	$	(4	)

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. During the nine months ended October 1, 2016 and October 3, 2015, the Company repurchased 1.8 million and 1.3 million shares of the Company’s outstanding common stock at a cost of $236 million and $249 million, respectively, under the May 2014 authorization and other previously announced programs. The Company has a total of $206 million authorized for future repurchases under the May 2014 plan. In addition, the Company repurchased $6 million of common stock related to the vesting of restricted stock units during both the nine months ended October 1, 2016 and October 3, 2015. 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.

9

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

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 1, 2016 and October 3, 2015 (in thousands):

	Balance at Beginning of Period		Accruals for Warranties		Settlements Made			Balance at End of Period
Accrued warranty liability:
October 1, 2016	$	13,349	$	7,101	$	(6,915	)	$	13,535
October 3, 2015	$	13,266	$	5,834	$	(5,993	)	$	13,107

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 1, 2016
	Amortized Cost		Unrealized Gain		Unrealized Loss			Fair Value
U.S. Treasury securities	$	555,493	$	719	$	(64	)	$	556,148
Foreign government securities		17,999		3		—			18,002
Corporate debt securities		1,572,028		1,353		(533	)		1,572,848
Time deposits		221,034		—		—			221,034
Equity securities		77		70		—			147
Total	$	2,366,631	$	2,145	$	(597	)	$	2,368,179
Amounts included in:
Cash equivalents	$	85,373	$	—	$	—		$	85,373
Investments		2,281,258		2,145		(597	)		2,282,806
Total	$	2,366,631	$	2,145	$	(597	)	$	2,368,179

	December 31, 2015
	Amortized Cost		Unrealized Gain		Unrealized Loss			Fair Value
U.S. Treasury securities	$	628,358	$	16	$	(1,218	)	$	627,156
Foreign government securities		15,216		—		(17	)		15,199
Corporate debt securities		1,325,398		159		(1,239	)		1,324,318
Time deposits		74,947		—		—			74,947
Equity securities		77		70		—			147
Total	$	2,043,996	$	245	$	(2,474	)	$	2,041,767
Amounts included in:
Cash equivalents	$	130,169	$	—	$	—		$	130,169
Investments		1,913,827		245		(2,474	)		1,911,598
Total	$	2,043,996	$	245	$	(2,474	)	$	2,041,767

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 1, 2016		December 31, 2015
Due in one year or less	$	1,284,900	$	1,137,825
Due after one year through three years		862,098		828,848
Total	$	2,146,998	$	1,966,673

3 Inventories

Inventories are classified as follows (in thousands):

	October 1, 2016		December 31, 2015
Raw materials	$	97,351	$	88,625
Work in progress		20,078		20,901
Finished goods		185,754		153,889
Total inventories	$	303,183	$	263,415

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 September 2, 2016, the Company acquired all of the outstanding stock of Rubotherm GmbH (“Rubotherm”), a manufacturer of gravimetric analysis systems, for approximately $6 million in cash, $5 million of which was paid at closing and an additional $1 million paid after closing to settle certain liabilities. Rubotherm develops and manufactures analytical test instruments for thermogravimetric and sorption measurements that are used in both industrial and academic research laboratories in disciplines that include chemistry, material science and engineering. The Rubotherm acquisition will help support and further expand product offerings within TA’s thermal analysis business. The Company has allocated $3 million of the purchase price to intangible assets comprised of technology, which will be amortized over ten years. The remaining purchase price of $4 million was accounted for as goodwill, which is not deductible for tax purposes.

The principal factor that resulted in recognition of goodwill in the acquisition of Rubotherm 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 Rubotherm on the Company’s revenues and net income since the acquisition date for the nine months ended October 1, 2016 was immaterial. The pro forma effect of the ongoing operations for Waters and Rubotherm as though this acquisition had occurred at the beginning of the periods covered by this report was also 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 Rubotherm (in thousands):

Accounts receivable and other current assets	$	1,037
Inventory		976
Property, plant and equipment		160
Intangible assets		2,901
Goodwill		3,743
Total assets acquired		8,817
Accrued expenses and other current liabilities		2,849
Deferred tax liability		782
Cash consideration paid	$	5,186

5 Goodwill and Other Intangibles

The carrying amount of goodwill was $356 million and $357 million at October 1, 2016 and December 31, 2015, respectively. During the nine months ended October 1, 2016, the Company’s acquisitions increased goodwill by $4 million (see Note 4) and the effect of foreign currency translation decreased goodwill by $5 million.

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

	October 1, 2016					December 31, 2015
					Weighted-					Weighted-
	Gross				Average	Gross				Average
	Carrying		Accumulated		Amortization	Carrying		Accumulated		Amortization
	Amount		Amortization		Period	Amount		Amortization		Period
Capitalized software	$	372,588	$	231,237	6 years	$	335,949	$	204,267	7 years
Purchased intangibles		166,216		127,026	11 years		163,500		119,505	11 years
Trademarks and IPR&D		13,788		—			14,364		—
Licenses		4,876		3,960	6 years		5,396		4,046	6 years
Patents and other intangibles		61,986		35,612	8 years		58,519		31,888	8 years
Total	$	619,454	$	397,835	7 years	$	577,728	$	359,706	8 years

During the nine months ended October 1, 2016, the effect of foreign currency translation increased the gross carrying value of intangible assets and accumulated amortization for intangible assets by $8 million and $5 million, respectively. Amortization expense for intangible assets was $12 million for both the three months ended October 1, 2016 and October 3, 2015. Amortization expense for intangible assets was $34 million for both the nine months ended October 1, 2016 and October 3, 2015. Amortization expense for intangible assets is estimated to be approximately $45 million per year for each of the next five years.

6 Debt

On May 12, 2016, the Company issued and sold the following senior unsecured notes:

Senior Unsecured Notes			Face Value
	Term	Interest Rate	(in millions)		Maturity Date
Series I	7 years	3.13%	$	50	May 2023
Series J	8 years	Floating Rate*	$	40	May 2024
Series K	10 years	3.44%	$	160	May 2026

* Series J senior unsecured notes bear interest at 3 month LIBOR for that floating rate interest period plus 1.45%.

12

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

Of the $250 million of proceeds received from the issuance of the new senior unsecured notes, $225 million were used to repay outstanding portions of the revolving facilities. Interest on the Series I and K senior unsecured notes is payable semi-annually each year. Interest on Series J 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 J senior unsecured notes. Other provisions for these senior unsecured notes are similar to the existing senior unsecured notes, as described below.

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 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 1, 2016, $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 $660 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 1, 2016 and December 31, 2015, the Company had a total of $700 million and $500 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 and J 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.

13

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

The Company had the following outstanding debt at October 1, 2016 and December 31, 2015 (in thousands):

	October 1, 2016			December 31, 2015
Foreign subsidiary lines of credit	$	176		$	322
Senior unsecured notes - Series C - 2.50%, due March 2016		—			50,000
Credit agreements		125,000			125,000
Unamortized debt issuance costs		—			(13	)
Total notes payable and debt		125,176			175,309
Senior unsecured notes - Series B - 5.00%, due February 2020		100,000			100,000
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
Senior unsecured notes - Series I - 3.13%, due May 2023		50,000			—
Senior unsecured notes - Series J - floating rate**, due May 2024		40,000			—
Senior unsecured notes - Series K - 3.44%, due May 2026		160,000			—
Credit agreements		960,000			1,045,000
Unamortized debt issuance costs		(3,168	)		(1,973	)
Total long-term debt		1,656,832			1,493,027
Total debt	$	1,782,008		$	1,668,336

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

** Series J senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.45%.

As of October 1, 2016 and December 31, 2015, the Company had a total amount available to borrow under the existing credit agreements of $513 million and $428 million, respectively, after outstanding letters of credit. The weighted-average interest rates applicable to the senior unsecured notes and credit agreement borrowings collectively were 2.45% and 2.11% at October 1, 2016 and December 31, 2015, respectively. As of October 1, 2016, the Company was in compliance with all debt covenants.

The Company and its foreign subsidiaries also had available short-term lines of credit totaling $84 million and $97 million at October 1, 2016 and December 31, 2015, respectively, for the purpose of short-term borrowing and issuance of commercial guarantees. At October 1, 2016 and December 31, 2015, the weighted-average interest rates applicable to these short-term borrowings were 1.48% and 1.24%, respectively.

7 Income Taxes

The four principal jurisdictions in which the Company manufactures are the U.S., Ireland, the U.K. and Singapore, where the marginal effective tax rates were approximately 37.5%, 12.5%, 20% and 0%, respectively, as of October 1, 2016. The Company has a contractual tax rate in Singapore of 0% through March 2021, based upon the achievement of certain contractual milestones, which the Company expects to continue to meet. The current statutory tax rate in Singapore is 17%. For the first nine months of 2016, the effect of applying the contractual tax rate in Singapore, as compared with applying the statutory tax rate, increased net income and net income per diluted share by $16 million and $0.20, respectively.

The Company’s effective tax rate was 14.2% and 10.3% for the three months ended October 1, 2016 and October 3, 2015, respectively. The increase in the effective tax rate for the 2016 quarter as compared to the 2015 quarter can be attributed to the recognition of a $2 million discrete benefit in the 2015 quarter for additional U.K. tax credits and the differences in the proportionate amounts of pre-tax income recognized in jurisdictions with different effective tax rates. The Company’s effective tax rate was 12.7% and 13.3% for the nine months ended October 1, 2016 and October 3, 2015, respectively. The decrease in the effective tax rate year-to-date for 2016 as compared to 2015 can be attributed to the following: a release of a valuation allowance on certain net operating loss carryforwards in the second quarter of 2016; the impact of a tax benefit recorded in the first quarter of 2016 associated with modifications to certain stock compensation awards; and the impact of the U.S. research and development tax credit benefit which was not enacted by the government or recognized by the Company until the fourth quarter of 2015.

14

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

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 tax 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 1, 2016 and October 3, 2015 (in thousands):

	October 1, 2016			October 3, 2015
Balance at the beginning of the period	$	14,450		$	19,596
Net changes in uncertain tax benefits		(3,559	)		(861	)
Balance at the end of the period	$	10,891		$	18,735

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, 2012. However, carryforward tax attributes that were generated in years beginning on or before January 1, 2013 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 1, 2016, 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 potential tax audit settlements and 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 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.

15

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

The consolidated statements of operations for the three and nine months ended October 1, 2016 and October 3, 2015 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 1, 2016		October 3, 2015		October 1, 2016		October 3, 2015
Cost of sales	$	731	$	668	$	2,058	$	1,990
Selling and administrative expenses		6,944		6,626		27,526		19,686
Research and development expenses		692		1,053		3,020		3,281
Total stock-based compensation	$	8,367	$	8,347	$	32,604	$	24,957

During the nine months ended October 1, 2016, the Company recognized $7 million of stock compensation expense related to the modification of certain stock awards upon the retirement of senior executives.

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 1, 2016 and October 3, 2015 are as follows:

	Nine Months Ended
Options Issued and Significant Assumptions Used to Estimate Option Fair Values	October 1, 2016			October 3, 2015
Options issued (in thousands)		86			115
Risk-free interest rate		1.5	%		1.4	%
Expected life in years		5			4
Expected volatility		0.286			0.291
Expected dividends		—			—

	Nine Months Ended
Weighted-Average Exercise Price and Fair Value of Options on the Date of Grant	October 1, 2016		October 3, 2015
Exercise price	$	122.65	$	121.33
Fair value	$	34.63	$	30.85

The following table summarizes stock option activity for the plans for the nine months ended October 1, 2016 (in thousands, except per share data):

	Number of Shares			Price per Share	Weighted-Average Exercise Price
Outstanding at December 31, 2015		3,154		$ 38.09 to $ 134.37	$	96.73
Granted		86		$ 117.68 to $ 130.35	$	122.65
Exercised		(700	)	$ 41.20 to $ 113.36	$	76.98
Canceled		(50	)	$ 79.15 to $ 128.93	$	109.55
Outstanding at October 1, 2016		2,490		$ 38.09 to $ 134.37	$	102.92

16

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

Restricted Stock

During the nine months ended October 1, 2016, the Company granted eight thousand shares of restricted stock. The fair value of these awards on the grant date was $130.35 per share.

Restricted Stock Units

The following table summarizes the unvested restricted stock unit award activity for the nine months ended October 1, 2016 (in thousands, except for per share data):

	Shares			Weighted-Average Price
Unvested at December 31, 2015		497		$	104.16
Granted		136		$	117.75
Vested		(143	)	$	98.76
Forfeited		(11	)	$	109.85
Unvested at October 1, 2016		479		$	109.50

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 1, 2016
	Net Income		Weighted- Average Shares		Per Share
	(Numerator)		(Denominator)		Amount
Net income per basic common share	$	124,856		80,677	$	1.55
Effect of dilutive stock option, restricted stock and restricted stock unit securities		—		711		(0.02	)
Net income per diluted common share	$	124,856		81,388	$	1.53

	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

	Nine Months Ended October 1, 2016
	Net Income		Weighted- Average Shares		Per Share
	(Numerator)		(Denominator)		Amount
Net income per basic common share	$	347,125		80,923	$	4.29
Effect of dilutive stock option, restricted stock and restricted stock unit securities		—		650		(0.03	)
Net income per diluted common share	$	347,125		81,573	$	4.26

17

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

	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

For the three and nine months ended October 1, 2016, the Company had 0.5 million and 0.8 million stock options that were antidilutive, respectively, due to having higher exercise prices than the Company’s average stock price during the period. 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. These securities were not included in the computation of diluted EPS. The effect of dilutive securities was calculated using the treasury stock method.

10 Accumulated Other Comprehensive Income

The components of accumulated other comprehensive income are detailed as follows (in thousands):

	Currency Translation			Unrealized Gain (Loss) on Retirement Plans			Unrealized Gain (Loss) on Investments			Accumulated Other Comprehensive Income (Loss)
Balance at December 31, 2015	$	(103,570	)	$	(40,946	)	$	(2,210	)	$	(146,726	)
Other comprehensive income (loss), net of tax		(12,954	)		607			3,669			(8,678	)
Balance at October 1, 2016	$	(116,524	)	$	(40,339	)	$	1,459		$	(155,404	)

11 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 1, 2016 and October 3, 2015 is as follows (in thousands):

	Three Months Ended
	October 1, 2016									October 3, 2015
	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	$	94		$	116		$	1,253		$	—		$	(91	)	$	1,337
Interest cost		1,710			135			423			1,570			116			402
Expected return on plan assets		(2,392	)		(130	)		(401	)		(2,223	)		(129	)		(410	)
Net amortization:
Prior service (credit) cost		—			—			(51	)		—			—			14
Net actuarial loss		693			—			190			1,101			—			273
Net periodic pension cost (benefit)	$	105		$	121		$	1,414		$	448		$	(104	)	$	1,616

18

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

	Nine Months Ended
	October 1, 2016									October 3, 2015
	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	$	282		$	348		$	3,721		$	—		$	433		$	4,011
Interest cost		5,200			405			1,273			4,596			352			1,206
Expected return on plan assets		(7,226	)		(390	)		(1,206	)		(6,859	)		(373	)		(1,230	)
Net amortization:
Prior service (credit) cost		—			—			(145	)		—			—			42
Net actuarial loss		2,027			—			570			2,459			—			819
Net periodic pension cost	$	283		$	363		$	4,213		$	196		$	412		$	4,848

During the nine months ended October 1, 2016, the Company contributed $4 million to the Company’s U.S. pension plans. During fiscal year 2016, the Company expects to contribute a total of approximately $5 million to $10 million to the Company’s defined benefit plans.

12 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 and TA.

The Waters operating segment 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. The TA operating segment is primarily in the business of designing, manufacturing, distributing and servicing thermal analysis, rheometry and calorimetry instruments. The Company’s two operating segments have 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 1, 2016 and October 3, 2015 (in thousands):

	Three Months Ended				Nine Months Ended
	October 1, 2016		October 3, 2015		October 1, 2016		October 3, 2015
Product net sales:
Waters instrument systems	$	226,296	$	219,196	$	646,733	$	625,276
Chemistry		84,114		78,173		255,312		234,095
TA instrument systems		39,524		39,564		115,433		112,471
Total product sales		349,934		336,933		1,017,478		971,842
Service net sales:
Waters service		160,503		148,206		471,792		438,104
TA service		16,393		15,439		49,366		45,776
Total service sales		176,896		163,645		521,158		483,880
Total net sales	$	526,830	$	500,578	$	1,538,636	$	1,455,722

19

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

13 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 amended the standard in August 2015 to delay the effective period date by one year to annual and interim periods beginning after December 15, 2017. Adoption prior to December 15, 2016 is not permitted. In March 2016, the FASB clarified the implementation guidance on principal versus agent considerations and, in April 2016, clarification was made regarding certain aspects of identifying performance obligations and licensing implementation guidance. In May 2016, additional guidance was issued related to disclosure of remaining performance obligations, as well as other amendments to guidance on collectibility, non-cash consideration and the presentation of sales and other similar taxes collected from customers. 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 August 2014, accounting guidance was issued which defines management’s responsibility to assess an entity’s ability to continue as a going concern at each annual and interim reporting period, and requires additional disclosures in certain circumstances. This guidance is effective for the annual period ending after December 15, 2016, and for annual and interim periods thereafter. Early adoption is permitted. The adoption of this standard will not have an impact on the Company’s financial position, results of operations or cash flows.

In July 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.

In January 2016, accounting guidance was issued which primarily affects the classification and measurement of certain financial instruments, principally equity investments and certain financial liabilities. Under the new guidance, there will no longer be an available-for-sale classification for equity securities with readily determinable fair values. Changes to the fair value of equity investments will be recognized through earnings. Equity investments carried at cost should be adjusted for changes in observable prices, as applicable, and qualitatively assessed for impairment annually. Changes to the fair value of financial liabilities under the fair value option due to instrument specific credit risk will be recognized separately in other comprehensive income. The new guidance also requires financial assets and financial liabilities to be presented separately and grouped by measurement category in the notes to the financial statements. This guidance is effective for annual and interim reporting periods beginning after December 15, 2017 and early adoption of certain provisions of this guidance 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 February 2016, accounting guidance was issued regarding the accounting for leases. This new comprehensive lease standard amends various aspects of existing accounting guidance for leases. The core principle of the new guidance will require lessees to present the assets and liabilities that arise from leases on their balance sheets. This guidance is effective for annual and interim reporting periods beginning after December 15, 2018 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 March 2016, accounting guidance was issued which simplifies the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. This guidance is effective for annual and interim reporting periods beginning after December 15, 2016 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 June 2016, accounting guidance was issued that modifies the recognition of credit losses related to financial assets, such as debt securities, trade receivables, net investments in leases, off-balance sheet credit exposures, and

20

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

other financial assets that have the contractual right to receive cash. Current guidance requires the recognition of a credit loss when it is considered probable that a loss event was incurred. The new guidance requires the measurement of expected credit losses to be based upon relevant information, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the asset. As such, expected credit losses may be recognized sooner under the new guidance due to the broader range of information that will be required to determine credit loss estimates. The new guidance also amends the current other-than-temporary impairment model used for debt securities classified as available-for-sale. When the fair value of an available-for-sale debt security is below its amortized cost, the new guidance requires the total unrealized loss to be bifurcated into its credit and non-credit components. Any expected credit losses or subsequent recoveries will be recognized in earnings and any changes not considered credit related will continue to be recognized within other comprehensive income. This guidance is effective for annual and interim periods beginning after December 15, 2019. 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 August 2016, accounting guidance was issued that clarifies the classification of certain cash flows. The new guidance addresses eight specific areas where current accounting guidance is either unclear or does not specifically address classification issues. This guidance is effective for annual and interim periods beginning after December 15, 2018 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 cash flows.

21

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

Business and Financial Overview

The Company has two operating segments: Waters^® and TA^®. Waters 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 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 are as follows for the three and nine months ended October 1, 2016 and October 3, 2015 (in thousands, except per share data):

	Three Months Ended									Nine Months Ended
	October 1, 2016			October 3, 2015			% Change			October 1, 2016			October 3, 2015			% Change
Revenues:
Product sales	$	349,934		$	336,933			4	%	$	1,017,478		$	971,842			5	%
Service sales		176,896			163,645			8	%		521,158			483,880			8	%
Total net sales		526,830			500,578			5	%		1,538,636			1,455,722			6	%
Costs and operating expenses:
Total cost of sales		218,344			206,804			6	%		639,874			604,757			6	%
Selling and administrative expenses		123,861			124,655			(1	%)		382,793			367,066			4	%
Research and development expenses		30,418			30,703			(1	%)		92,434			90,209			2	%
Purchased intangibles amortization		2,476			2,573			(4	%)		7,531			7,547			—
Operating income		151,731			135,843			12	%		416,004			386,143			8	%
Operating income as a % of sales		28.8	%		27.1	%					27.0	%		26.5	%
Interest expense, net		(6,281	)		(6,281	)		—			(18,469	)		(19,462	)		(5	%)
Income from operations before income taxes		145,450			129,562			12	%		397,535			366,681			8	%
Provision for income taxes		20,594			13,281			55	%		50,410			48,682			4	%
Net income	$	124,856		$	116,281			7	%	$	347,125		$	317,999			9	%
Net income per diluted common share	$	1.53		$	1.40			9	%	$	4.26		$	3.82			12	%

Sales in the third quarter of 2016 grew overall by 5% for the quarter and 6% year-to-date compared to the same periods in 2015 on strong demand for the Company’s products and services from pharmaceutical customer end-markets. Sales to pharmaceutical customers grew 13% and 11% for the quarter and year-to-date, respectively, with the overall sales growth rate being impacted by weaker instrument system sales to non-pharmaceutical customers.

Instrument system sales increased 3% for both the quarter and year-to-date compared to the same periods in 2015 and were driven by the recently introduced ACQUITY^® Arc and Vion^TM IMS Q-Tof systems and LC-MS systems that incorporate the Company’s benchtop tandem quadrupole technologies. Recurring revenues (combined sales of chemistry consumables and services) increased 8% for both the quarter and year-to-date, resulting from a larger installed customer base. Recent acquisitions and foreign currency translation had a minimal impact on sales growth during the quarter and year-to-date.

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During the third quarter of 2016, sales in China and Japan grew at a double-digit rate over both the prior year quarter and prior year-to-date period. The sales growth in China was broad-based across all product lines, while the increase in Japan’s sales growth is primarily attributable to the favorable effect of foreign currency translation. Sales growth in the rest of Asia for both the quarter and year-to-date was negatively impacted by the unfavorable effect of foreign currency translation. Sales in the U.S. and Europe decreased slightly for the quarter as compared to the prior year quarter on weaker demand from non-pharmaceutical customers; however, both territories increased year-to-date as compared with the prior year-to-date period. Sales in the rest of the world grew at a double-digit rate for the quarter on broad-based sales growth across all product lines, bringing the year-to-date sales growth to 4%.

The increase in cost of sales for both the quarter and year-to-date as compared with the same periods in 2015 was primarily a result of higher sales volumes and changes in sales product mix. Cost of sales also benefited from a favorable effect of foreign currency translation on operating costs at the Company’s manufacturing facility in the U.K. Based on current foreign currency exchange rates and forecasts, the Company estimates that the full year impact of foreign currency translation on gross profit will be slightly favorable as compared to the prior year.

Selling and administrative expenses decreased 1% in the quarter and increased 4% year-to-date compared to the same periods in 2015, primarily as a result of increases from headcount additions and higher merit compensation costs being offset by a favorable effect of foreign currency translation. Foreign currency translation reduced selling and administrative expenses by 2% and 1% for the quarter and year-to-date, respectively. In addition, selling and administrative expenses for the quarter and year-to-date included a $2 million gain on the sale of an equity investment. Year-to-date, selling and administrative expenses include $7 million of stock compensation expense incurred in the first quarter of 2016 related to the modification of certain stock awards upon the retirement of senior executives.

Research and development expenses decreased 1% in the quarter and increased 2% year-to-date compared to the same periods in 2015, as increased spending on new products and the development of new technology initiatives was offset by a 10% and 4% decrease in expenses for the quarter and year-to-date, respectively, due to the favorable effect of foreign currency translation, resulting from the weakening of the British pound against the U.S. dollar.

Net income per diluted share for both the quarter and year-to-date benefited from an increase in sales compared to the same periods in 2015 and fewer shares outstanding due to additional share repurchases. Foreign currency translation increased net income per diluted share by approximately $0.07 and $0.05 in the quarter and year-to-date, respectively.

Year-to-date, net cash provided by operating activities was $456 million and $407 million in 2016 and 2015, respectively. The $49 million increase was primarily a result of higher sales volumes and the timing of payments to vendors and collection of receivables from customers. Within cash flows used in investing activities, capital expenditures related to property, plant, equipment and software capitalization were $72 million for the first nine months of both 2016 and 2015. In September 2016, the Company acquired all of the outstanding stock of Rubotherm GmbH, a manufacturer of thermogravimetric analysis systems, for approximately $6 million in cash.

Within cash flows used in financing activities, the Company issued and sold senior unsecured notes with an aggregate principal amount of $250 million on May 12, 2016. The proceeds from the issuance of these senior unsecured notes were used to repay existing debt and for general corporate purposes. In addition, the Company received $59 million and $29 million of proceeds from stock plans in the first nine months of 2016 and 2015, 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. The Company repurchased $236 million and $249 million of the Company’s outstanding common stock in the first nine months of 2016 and 2015, respectively, under the May 2014 authorization and other previously announced programs. 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.

23

Results of Operations

Sales by Geography

Geographic sales information is presented below for the three and nine months ended October 1, 2016 and October 3, 2015 (in thousands):

	Three Months Ended							Nine Months Ended
	October 1, 2016		October 3, 2015		% change			October 1, 2016		October 3, 2015		% change
Net Sales:
United States	$	168,614	$	169,783		(1	%)	$	485,945	$	475,854		2	%
Europe		128,191		132,104		(3	%)		396,540		383,919		3	%
Asia:
China		84,051		64,356		31	%		234,632		193,472		21	%
Japan		42,191		36,369		16	%		126,305		109,048		16	%
Asia Other		69,273		67,174		3	%		196,399		198,476		(1	%)
Total Asia		195,515		167,899		16	%		557,336		500,996		11	%
Other		34,510		30,792		12	%		98,815		94,953		4	%
Total net sales	$	526,830	$	500,578		5	%	$	1,538,636	$	1,455,722		6	%

As compared with the prior year, the changes in sales in the U.S. and Europe for the quarter and year-to-date were driven by higher recurring revenues on strong demand from pharmaceutical end-markets and were partially offset by lower instrument system sales growth. Sales growth in China was broad-based across all product lines and the effect of foreign currency translation increased Japan’s sales by 18% and 13% in the quarter and year-to-date, respectively. Within the rest of Asia, strong demand for instrument systems and chemistry consumables from pharmaceutical customers were offset by lower demand in other product lines and customer classes and the negative effect of foreign currency translation, which decreased sales by 3% and 7% for the quarter and year-to-date, respectively. For the quarter, the increase in sales in the rest of the world was broad-based across all product lines and was driven by double-digit increases from industrial chemical, nutritional safety and environmental customers. Year-to-date, sales in the rest of the world were primarily due to recurring revenues attributable to non-pharmaceutical customers.

Waters Net Sales

Net sales for Waters products and services are as follows for the three and nine months ended October 1, 2016 and October 3, 2015 (in thousands):

	Three Months Ended
	October 1, 2016		% of Total			October 3, 2015		% of Total			% change
Waters instrument systems	$	226,296		48	%	$	219,196		49	%		3	%
Chemistry		84,114		18	%		78,173		18	%		8	%
Total Waters product sales		310,410		66	%		297,369		67	%		4	%
Waters service		160,503		34	%		148,206		33	%		8	%
Total Waters net sales	$	470,913		100	%	$	445,575		100	%		6	%

	Nine Months Ended
	October 1, 2016		% of Total			October 3, 2015		% of Total			% change
Waters instrument systems	$	646,733		47	%	$	625,276		48	%		3	%
Chemistry		255,312		19	%		234,095		18	%		9	%
Total Waters product sales		902,045		66	%		859,371		66	%		5	%
Waters service		471,792		34	%		438,104		34	%		8	%
Total Waters net sales	$	1,373,837		100	%	$	1,297,475		100	%		6	%

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Waters instrument system sales (LC and LC-MS) increased in the quarter and year-to-date compared to the same periods in 2015 primarily due to double-digit growth in China from sales of the recently introduced ACQUITY Arc and Vion IMS Q-Tof systems and LC-MS instrument systems. 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. The effect of foreign currency translation had a minimal impact on Waters sales in both the quarter and year-to-date.

Waters sales were flat in the U.S. for the quarter and increased 2% year-to-date. Europe sales decreased 3% for the quarter on weaker spending by non-pharmaceutical customers, but increased 4% year-to-date. Waters sales in China increased 31% and 22%, respectively, on very strong demand across all product lines. Waters Japan sales increased 16% and 14%, respectively, with foreign currency translation increasing sales by 19% and 12%, respectively. Waters sales in the rest of Asia increased 6% and 1% for the quarter and year-to-date, respectively, primarily due to sales of instrument systems and chemistry consumables in India. The effect of foreign currency translation negatively impacted sales in the rest of Asia by 2% and 7%, respectively. Sales in the rest of the world increased 6% and 2% for the quarter and year-to-date, respectively.

TA Net Sales

Net sales for TA products and services are as follows for the three and nine months ended October 1, 2016 and October 3, 2015 (in thousands):

	Three Months Ended
	October 1, 2016		% of Total			October 3, 2015		% of Total			% change
TA instrument systems	$	39,524		71	%	$	39,564		72	%		—
TA service		16,393		29	%		15,439		28	%		6	%
Total TA net sales	$	55,917		100	%	$	55,003		100	%		2	%

	Nine Months Ended
	October 1, 2016		% of Total			October 3, 2015		% of Total			% change
TA instrument systems	$	115,433		70	%	$	112,471		71	%		3	%
TA service		49,366		30	%		45,776		29	%		8	%
Total TA net sales	$	164,799		100	%	$	158,247		100	%		4	%

TA instrument system sales year-to-date grew modestly compared to the same period in 2015 on weaker demand for thermal product lines. TA service sales increased in the quarter and year-to-date due to sales of service plans and billings to a higher installed base of customers. The effect of foreign currency translation had a minimal impact on TA’s sales growth for the quarter and year-to-date. In addition, recent acquisitions added 2% to TA’s sales year-to-date.

Geographically, for the third quarter as compared with the prior year quarter, TA had strong sales growth in China and Japan, decreased sales in the rest of Asia, the U.S. and Europe, and doubled its sales in the rest of the world. Year-to-date as compared to the same period in 2015, TA had double-digit sales growth in China and Japan, decreased sales in the rest of Asia, modest growth in the U.S., flat sales in Europe and double-digit sales in the rest of the world.

Cost of Sales

The increase in cost of sales for both the quarter and year-to-date was primarily as a result of higher sales volumes and changes in sales product mix. Cost of sales also benefited from a favorable effect of foreign currency translation on operating costs at the Company’s manufacturing facility in the U.K.

Sales and cost of sales are 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 have a slightly positive effect on gross profit for the remainder of 2016, based on current exchange rates.

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Selling and Administrative Expenses

Selling and administrative expenses decreased 1% in the quarter and increased 4% year-to-date compared to the same periods in 2015, primarily as a result of increases from headcount additions and higher merit compensation costs being offset by a favorable effect of foreign currency translation. Foreign currency translation reduced selling and administrative expenses by 2% and 1% for the quarter and year-to-date, respectively. In addition, selling and administrative expenses for the quarter and year-to-date included a $2 million gain on the sale of an equity method investment. Year-to-date, selling and administrative expenses include $7 million of stock compensation expense incurred in the first quarter of 2016 related to the modification of certain stock awards upon the retirement of senior executives. As a percentage of net sales, selling and administrative expenses were 23.5% and 24.9% for the 2016 quarter and year-to-date, respectively, and 24.9% and 25.2% for the 2015 quarter and year-to-date, respectively.

Research and Development Expenses

Research and development expenses decreased 1% and increased 2% for the quarter and year-to-date, respectively, compared to the same periods in 2015 as an increase in the Company’s research and development initiatives in the U.K. was offset by a 10% and 4% decrease in expenses for the quarter and year-to-date, respectively, primarily due to a favorable effect of foreign currency translation, resulting from the weakening of the British pound against the U.S. dollar.

Interest Expense, Net

Net interest expense for the quarter was flat compared to the prior year quarter as the additional interest expense attributed to higher debt balances was offset by higher income earned on cash, cash equivalents and investment balances. Net interest expense decreased year-to-date as compared to the same period in 2015 primarily due to higher income earned on increased cash, cash equivalents and investment balances.

Provision for Income Taxes

The four principal jurisdictions in which the Company manufactures are the U.S., Ireland, the U.K. and Singapore, where the marginal effective tax rates were approximately 37.5%, 12.5%, 20% and 0%, respectively, as of October 1, 2016. The Company has a contractual tax rate in Singapore of 0% through March 2021, based upon the achievement of certain contractual milestones, which the Company expects to continue to meet. The current statutory tax rate in Singapore is 17%. For the first nine months of 2016, the effect of applying the contractual tax rate in Singapore, as compared with applying the statutory tax rate, increased net income by $16 million and increased net income per diluted share by $0.20. The Company’s effective tax rate is influenced by many significant factors, including, but not 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 14.2% and 10.3% for 2016 and 2015, respectively. The increase in the effective tax rate for the 2016 quarter as compared to the 2015 quarter can be attributed to the recognition of a $2 million discrete benefit in the 2015 quarter for additional U.K. tax credits and the differences in the proportionate amounts of pre-tax income recognized in jurisdictions with different effective tax rates. The Company’s effective tax rate year-to-date was 12.7% and 13.3% for 2016 and 2015, respectively. The decrease in the effective tax rates year-to-date for 2016 as compared to 2015 can be attributed to the following: a release of a valuation allowance on certain net operating loss carryforwards in the second quarter of 2016; the impact of a tax benefit recorded in the first quarter of 2016 associated with modifications to certain stock compensation awards; and the impact of the U.S. research and development tax credit benefit which was not enacted by the government or recognized by the Company until the fourth quarter of 2015.

26

Liquidity and Capital Resources

Condensed Consolidated Statements of Cash Flows (in thousands):

	Nine Months Ended
	October 1, 2016			October 3, 2015
Net income	$	347,125		$	317,999
Depreciation and amortization		72,364			66,895
Stock-based compensation		32,604			24,957
Deferred income taxes		4,924			1,821
Change in accounts receivable		39,471			6,887
Change in inventories		(39,988	)		(35,488	)
Change in accounts payable and other current liabilities		(29,179	)		4,234
Change in deferred revenue and customer advances		29,244			31,099
Other changes		(462	)		(11,762	)
Net cash provided by operating activities		456,103			406,642
Net cash used in investing activities		(438,674	)		(294,509	)
Net cash used in financing activities		(66,814	)		(57,918	)
Effect of exchange rate changes on cash and cash equivalents		(8,071	)		(16,874	)
(Decrease) increase in cash and cash equivalents	$	(57,456	)	$	37,341

Cash Flow from Operating Activities

Net cash provided by operating activities was $456 million and $407 million in the nine months ended October 1, 2016 and October 3, 2015, respectively. The changes within net cash provided by operating activities in 2016 as compared to 2015 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 was primarily attributable to timing of payments made by customers and timing of sales. Days-sales-outstanding were 76 days at both October 1, 2016 October 3, 2015.

• The change in inventory is primarily attributable to anticipated annual increases in sales volumes.

• The change in accounts payable and other current liabilities was a result of timing of payments to vendors, as well as the annual payment of management incentive compensation.

• The change in net cash provided from deferred revenue and customer advances was a result of increases in service contracts as a higher installed base of customers renewed 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.

Cash Used in Investing Activities

Year-to-date, net cash used in investing activities totaled $439 million and $295 million in 2016 and 2015, respectively. Additions to fixed assets and capitalized software were $72 million year-to-date in both 2016 and 2015. During 2016 and 2015, the Company purchased $1,923 million and $1,467 million of investments year-to-date, while $1,558 million and $1,249 million of investments matured, respectively. Business acquisitions, net of cash acquired, were $6 million and $9 million year-to-date in 2016 and 2015, respectively. In addition, the Company sold its interest in an equity investment for $4 million in cash in 2016.

Cash Used in Financing Activities

In May 2016, the Company issued and sold senior unsecured notes with an aggregate principal amount of $250 million. The proceeds from the issuance of these senior unsecured notes were used to repay existing debt and for general corporate purposes. Year-to-date, the Company’s net debt borrowings increased by $115 million and $165 million in 2016 and 2015, respectively. As of October 1, 2016, the Company had a total of $1,782 million in outstanding debt, which consisted of $700 million in outstanding senior unsecured notes, $300 million borrowed under a term loan facility under the Company’s credit agreement, $785 million borrowed under a revolving credit facility under the Company’s credit agreement and less than $1 million borrowed under various other short-term

27

lines of credit, offset by $3 million of unamortized debt issuance costs. At October 1, 2016, $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 $660 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 1, 2016, the Company had a total amount available to borrow under its credit agreement of $513 million after outstanding letters of credit. As of October 1, 2016, the Company was in compliance with all debt covenants.

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. The Company repurchased 1.8 million shares of the Company’s outstanding common stock during both 2016 and 2015 at a cost of $236 million and $249 million, respectively, under the May 2014 authorization and other previously announced programs. As of October 1, 2016, the Company had a total of $206 million authorized for future repurchases under the May 2014 plan. In addition, the Company repurchased $6 million of common stock related to the vesting of restricted stock units during both 2016 and 2015.

The Company received $59 million and $29 million of proceeds from the exercise of stock options and the purchase of shares pursuant to the Company’s employee stock purchase plan in 2016 and 2015, respectively.

The Company had cash, cash equivalents and investments of $2,713 million as of October 1, 2016. The majority of the Company’s cash, cash equivalents and investments are generated from foreign operations, with $2,664 million held by foreign subsidiaries at October 1, 2016, of which $263 million was held in currencies other than the U.S. dollar. 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, 2015, as filed with the U.S. Securities and Exchange Commission (“SEC”) on February 26, 2016. The Company reviewed its contractual obligations and commercial commitments as of October 1, 2016 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 recently issued senior unsecured notes as described in Note 6, “Debt.”

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 1, 2016, the Company contributed $4 million to the Company’s U.S. pension plans. During fiscal year 2016, the Company expects to contribute a total of approximately $5 million to $10 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.

Off-Balance Sheet Arrangements

The Company has not created, and is not party to, any special-purpose or off-balance sheet entities for the purpose of raising capital, incurring debt or operating parts of its business that are not consolidated (to the extent of the Company’s ownership interest therein) into the consolidated financial statements. The Company has not entered into

28

any transactions with unconsolidated entities whereby it has subordinated retained interests, derivative instruments or other contingent arrangements that expose the Company to material continuing risks, contingent liabilities or any other obligation under a variable interest in an unconsolidated entity that provides financing, liquidity, market risk or credit risk support to the Company.

The Company enters into standard indemnification agreements in its ordinary course of business. Pursuant to these agreements, the Company indemnifies, holds harmless and agrees to reimburse the indemnified party for losses suffered or incurred by the indemnified party, generally the Company’s business partners or customers, in connection with patent, copyright or other intellectual property infringement claims by any third party with respect to its current products, as well as claims relating to property damage or personal injury resulting from the performance of services by the Company or its subcontractors. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is unlimited. Historically, the Company’s costs to defend lawsuits or settle claims relating to such indemnity agreements have been minimal and management accordingly believes the estimated fair value of these agreements is immaterial.

Critical Accounting Policies and Estimates

In the Company’s Annual Report on Form 10-K for the year ended December 31, 2015, as filed with the SEC on February 26, 2016, 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 1, 2016. The Company did not make any changes in those policies during the nine months ended October 1, 2016.

New Accounting Pronouncements

Please refer to Note 13, 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”,

29

“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:

• Foreign currency exchange rate fluctuations that could adversely affect translation of the Company’s future sales, financial operating results and the condition of its 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 U.K. voting to exit the European Union as well as 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; ability to obtain alternative sources for components and modules; and the possibility that future sales of new products related to acquisitions, which trigger contingent purchase payments, may exceed the Company’s 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 among 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, 2015, as filed with the SEC on February 26, 2016. 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 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 1, 2016. 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, 2015, as filed with the SEC on February 26, 2016.

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 officers), 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

30

and chief financial officer concluded that the Company’s disclosure controls and procedures were effective as of October 1, 2016 (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 1, 2016 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 1, 2016 as described in Item 3 of Part I of the Company’s Annual Report on Form 10-K for the year ended December 31, 2015, as filed with the SEC on February 26, 2016.

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, 2015, as filed with the SEC on February 26, 2016. The Company reviewed its risk factors as of October 1, 2016 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 Equity Securities by the Issuer

The following table provides information about purchases by the Company during the three months ended October 1, 2016 of equity securities 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 3 to July 30, 2016		—	$	—		—	$	274,675
July 31 to August 27, 2016		268	$	156.69		265	$	232,694
August 28 to October 1, 2016		175	$	157.37		175	$	205,578
Total		443	$	156.96		440	$	205,578

(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.

31

Item 6: Exhibits

Exhibit Number	Description of Document
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 1, 2016, 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).

* 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.

32

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

Senior Vice President and

Chief Financial Officer

Date: November 4, 2016

33

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 4, 2016	/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 4, 2016	/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 1, 2016, 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 4, 2016

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 1, 2016, 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 4, 2016

By:	/s/ Eugene G. Cassis
Eugene G. Cassis
Chief Financial Officer

XML

Document and Entity Information - USD ($)	6 Months Ended
	Jul. 02, 2016	Jul. 29, 2016
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	Q2
Document Period End Date	Jul. 02, 2016
Amendment Flag	false
Document Fiscal Year Focus	2016
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	$ 11,522,067,374
Entity Common Stock, Shares Outstanding		80,573,959

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Jul. 02, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 463,382	$ 487,665
Investments	2,136,404	1,911,598
Accounts receivable, less allowances for doubtful accounts and sales returns of $8,187 and $7,496 at July 2, 2016 and December 31, 2015, respectively	445,953	468,315
Inventories	286,447	263,415
Other current assets	73,750	82,540
Total current assets	3,405,936	3,213,533
Property, plant and equipment, net	330,235	333,355
Intangible assets, net	217,393	218,022
Goodwill	352,987	356,864
Other assets	141,522	146,903
Total assets	4,448,073	4,268,677
Current liabilities:
Notes payable and debt	125,260	175,309
Accounts payable	66,115	70,573
Accrued employee compensation	35,585	54,653
Deferred revenue and customer advances	190,904	141,505
Accrued income taxes	7,296	14,894
Accrued warranty	12,927	13,349
Other current liabilities	84,517	93,793
Total current liabilities	522,604	564,076
Long-term liabilities:
Long-term debt	1,631,698	1,493,027
Long-term portion of retirement benefits	70,761	77,063
Long-term income tax liabilities	12,298	14,884
Other long-term liabilities	61,368	60,776
Total long-term liabilities	1,776,125	1,645,750
Total liabilities	2,298,729	2,209,826
Commitments and contingencies (Notes 5, 6 and 10)
Stockholders' equity:
Preferred stock, par value $0.01 per share, 5,000 shares authorized, none issued at July 2, 2016 and December 31, 2015	0	0
Common stock, par value $0.01 per share, 400,000 shares authorized, 158,098 and 157,677 shares issued, 80,537 and 81,472 shares outstanding at July 2, 2016 and December 31, 2015, respectively	1,581	1,577
Additional paid-in capital	1,541,157	1,490,342
Retained earnings	5,085,835	4,863,566
Treasury stock, at cost, 77,561 and 76,205 shares at July 2, 2016 and December 31, 2015, respectively	(4,322,300)	(4,149,908)
Accumulated other comprehensive loss	(156,929)	(146,726)
Total stockholders' equity	2,149,344	2,058,851
Total liabilities and stockholders' equity	$ 4,448,073	$ 4,268,677

XML

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Jul. 02, 2016	Dec. 31, 2015
Statement of Financial Position [Abstract]
Allowances for doubtful accounts and sales returns	$ 8,187	$ 7,496
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	158,098,000	157,677,000
Common stock, shares outstanding	80,537,000	81,472,000
Treasury stock, shares	77,561,000	76,205,000

XML

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Income Statement [Abstract]
Product sales	$ 359,687	$ 332,036	$ 667,544	$ 634,909
Service sales	176,873	162,704	344,262	320,235
Total net sales	536,560	494,740	1,011,806	955,144
Cost of product sales	144,814	138,201	274,072	260,154
Cost of service sales	75,565	70,506	147,458	137,799
Total cost of sales	220,379	208,707	421,530	397,953
Gross profit	316,181	286,033	590,276	557,191
Selling and administrative expenses	129,581	122,660	258,932	242,411
Research and development expenses	32,578	30,555	62,016	59,506
Purchased intangibles amortization	2,411	2,500	5,055	4,974
Operating income	151,611	130,318	264,273	250,300
Interest expense	(10,983)	(9,046)	(21,102)	(18,021)
Interest income	4,827	2,500	8,914	4,840
Income from operations before income taxes	145,455	123,772	252,085	237,119
Provision for income taxes	17,238	18,115	29,816	35,401
Net income	$ 128,217	$ 105,657	$ 222,269	$ 201,718
Net income per basic common share	$ 1.59	$ 1.28	$ 2.74	$ 2.44
Weighted-average number of basic common shares	80,804	82,564	81,043	82,798
Net income per diluted common share	$ 1.57	$ 1.27	$ 2.72	$ 2.41
Weighted-average number of diluted common shares and equivalents	81,455	83,332	81,663	83,551

XML

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 128,217	$ 105,657	$ 222,269	$ 201,718
Foreign currency translation	(31,485)	21,957	(15,434)	(42,391)
Unrealized gains (losses) on investments before income taxes	1,881	(2,184)	5,170	583
Income tax (expense) benefit	(76)	87	(169)	(29)
Unrealized gains (losses) on investments, net of tax	1,805	(2,097)	5,001	554
Retirement liability adjustment before reclassifications	501	(555)	(499)	1,581
Retirement liability amounts reclassified to selling and administrative expenses	810	921	1,620	1,842
Retirement liability adjustment before income taxes	1,311	366	1,121	3,423
Income tax expense from retirement liability adjustment	(613)	(123)	(891)	(1,154)
Retirement liability adjustment, net of tax	698	243	230	2,269
Other comprehensive (loss) income	(28,982)	20,103	(10,203)	(39,568)
Comprehensive income	$ 99,235	$ 125,760	$ 212,066	$ 162,150

XML

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015
Cash flows from operating activities:
Net income	$ 222,269	$ 201,718
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation expense	24,237	16,610
Deferred income taxes	637	542
Depreciation	26,055	22,766
Amortization of intangibles	22,022	22,372
Change in operating assets and liabilities, net of acquisitions:
Decrease in accounts receivable	32,318	15,842
Increase in inventories	(25,003)	(27,678)
Decrease (increase) in other current assets	2,812	(9,596)
Increase in other assets	(3,517)	(9,397)
Decrease in accounts payable and other current liabilities	(41,100)	(22,287)
Increase in deferred revenue and customer advances	46,801	43,352
Increase in other liabilities	9,374	13,305
Net cash provided by operating activities	316,905	267,549
Cash flows from investing activities:
Additions to property, plant, equipment and software capitalization	(49,696)	(45,293)
Business acquisitions, net of cash acquired		(9,408)
Purchases of investments	(1,205,035)	(1,328,292)
Maturities and sales of investments	987,060	1,118,485
Net cash used in investing activities	(267,671)	(264,508)
Cash flows from financing activities:
Proceeds from debt issuances	400,177	195,073
Payments on debt	(310,239)	(100,019)
Payments of debt issuance costs	(1,705)	(2,309)
Proceeds from stock plans	23,272	24,777
Purchases of treasury shares	(172,392)	(170,958)
Excess tax benefit related to stock option plans	3,517	5,689
Payments for derivative contracts	(7,531)	(805)
Net cash used in financing activities	(64,901)	(48,552)
Effect of exchange rate changes on cash and cash equivalents	(8,616)	(10,791)
Decrease in cash and cash equivalents	(24,283)	(56,302)
Cash and cash equivalents at beginning of period	487,665	422,177
Cash and cash equivalents at end of period	$ 463,382	$ 365,875

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Basis of Presentation and Summary of Significant Accounting Policies

6 Months Ended

Jul. 02, 2016

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 serviceshigh 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. In addition, the Company designs, manufactures, sells and services thermal analysis, rheometry and calorimetry instruments through its TA® product line. These instruments 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 pharmaceutical 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 second fiscal quarters for 2016 and 2015 ended on July 2, 2016 and July 4, 2015, 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, 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, 2015, as filed with the U.S. Securities and Exchange Commission on February 26, 2016.

Translation of Foreign Currencies

For most of the Company's foreign operations, assets and liabilities are translated into U.S. dollars at exchange rates prevailing on the balance sheet date, while revenues and expenses are translated at average exchange rates prevailing during the period. The functional currency of each of the Company's foreign operating subsidiaries is the local currency of that particular country, except for the Company's subsidiaries in Hong Kong, Singapore and the Cayman Islands, where the underlying transactional cash flows are denominated in currencies other than the respective local currency of domicile. The functional currency of the Hong Kong, Singapore and Cayman Islands subsidiaries is the U.S. dollar, based on the respective entity's cash flows.

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 the U.S. dollar. As of July 2, 2016 and December 31, 2015, $2,559 million out of $2,600 million and $2,346 million out of $2,399 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. In addition, $252 million out of $2,600 million and $248 million out of $2,399 million of cash, cash equivalents and investments were held in currencies other than the U.S. dollar at July 2, 2016 and December 31, 2015, respectively.

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 July 2, 2016 and December 31, 2015. 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 July 2, 2016 (in thousands):

					Quoted Prices
					in Active		Significant
					Markets		Other		Significant
					for Identical		Observable		Unobservable
			Total at		Assets		Inputs		Inputs
			July 2, 2016		(Level 1)		(Level 2)		(Level 3)
Assets:
	U.S. Treasury securities		$	585,448	$	-	$	585,448	$	-
	Foreign government securities			18,024		-		18,024		-
	Corporate debt securities			1,454,719		-		1,454,719		-
	Time deposits			166,152		-		166,152		-
	Equity securities			147		-		147		-
	Other cash equivalents			11,000		-		11,000		-
	Waters 401(k) Restoration Plan assets			30,031		-		30,031		-
	Foreign currency exchange contracts			174		-		174		-
		Total	$	2,265,695	$	-	$	2,265,695	$	-
Liabilities:
	Contingent consideration		$	4,608	$	-	$	-	$	4,608
	Foreign currency exchange contracts			952		-		952		-
		Total	$	5,560	$	-	$	952	$	4,608

The following table represents the Company's assets and liabilities measured at fair value on a recurring basis at December 31, 2015 (in thousands):

					Quoted Prices
					in Active		Significant
					Markets		Other		Significant
			Total at		for Identical		Observable		Unobservable
			December 31,		Assets		Inputs		Inputs
			2015		(Level 1)		(Level 2)		(Level 3)
Assets:
	U.S. Treasury securities		$	627,156	$	-	$	627,156	$	-
	Foreign government securities			15,199		-		15,199		-
	Corporate debt securities			1,324,318		-		1,324,318		-
	Time deposits			74,947		-		74,947		-
	Equity securities			147		-		147		-
	Other cash equivalents			27,000		-		27,000		-
	Waters 401(k) Restoration Plan assets			35,823		-		35,823		-
	Foreign currency exchange contracts			616		-		616		-
		Total	$	2,105,206	$	-	$	2,105,206	$	-
Liabilities:
	Contingent consideration		$	4,215	$	-	$	-	$	4,215
	Foreign currency exchange contracts			402		-		402		-
		Total	$	4,617	$	-	$	402	$	4,215

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 July 2, 2016 and December 31, 2015.

Fair Value of Contingent Consideration

The fair value of the Company's liability for contingent consideration relates to the July 2014 acquisition of Medimass Research, Development and Service Kft. and 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 estimated future results and a discount rate that reflects both the likelihood of achieving the estimated future results and 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$5 million and $4 million atJuly 2, 2016 and December 31, 2015, respectively, 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, 2015 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 $610 millionand $450 million at July 2, 2016 and December 31, 2015, 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 $623 million and $454 million at July 2, 2016 and December 31, 2015, respectively, using Level 2 inputs.

Derivative Transactions

The Company is a global company that operates in over 35 countries and, as a result, the Company's net sales, cost of sales, operating expenses and balance sheet amounts are significantly impacted by fluctuations in foreign currency exchange rates. The Company is exposed to currency price risk on foreign currency exchange rate fluctuations when it translates its non-U.S. dollar foreign subsidiaries' financial statements into U.S. dollars, and when any of the Company's subsidiaries purchase or sell products or services in a currency other than its own currency.

The Company's principal strategy in managing exposure to changes in foreign currency exchange rates is to naturally hedge the foreign-currency-denominated liabilities on the Company's balance sheet against corresponding assets of the same currency, such that any changes in liabilities due to fluctuations in foreign exchange rates are typically offset by corresponding changes in assets.

The Company does not specifically enter into any derivatives that hedge foreign-currency-denominated assets, liabilities or commitments on its balance sheet, other than a portion of certain third-party accounts receivable and accounts payable, and the Company's net worldwide intercompany receivables and payables, which are eliminated in consolidation. The Company periodically aggregates its net worldwide balances by currency and then enters into foreign currency exchange contracts that mature within 90 days to hedge a portion of the remaining balance to minimize some of the Company's currency price risk exposure. The foreign currency exchange contracts are not designated for hedge accounting treatment.

Principal hedged currencies include the Euro, Japanese yen, British pound and Brazilian real. At July 2, 2016 and December 31, 2015, the Company held foreign exchange contracts with notional amounts totaling $128 million and $116 million, respectively.

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

	July 2, 2016		December 31, 2015
Other current assets	$	174	$	616
Other current liabilities	$	952	$	402

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

	Three Months Ended				Six Months Ended
	July 2, 2016		July 4, 2015		July 2, 2016		July 4, 2015
Realized (losses) gains on closed contracts	$	(5,637)	$	2,542	$	(7,531)	$	(805)
Unrealized (losses) gains on open contracts		(963)		(280)		(992)		62
Cumulative net pre-tax (losses) gains	$	(6,600)	$	2,262	$	(8,523)	$	(743)

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. The Company repurchased 1.3 million shares of the Company's outstanding common stock during both the six months endedJuly 2, 2016 and July 4, 2015 at a cost of $166 million and $165 million, respectively, under the May 2014 authorization and other previously announced programs. The Company has a total of $275 million authorized for future repurchases under the May 2014 plan. In addition, the Company repurchased $6 million of common stock related to the vesting of restricted stock units during both the six months ended July 2, 2016 and July 4, 2015. 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 six months ended July 2, 2016 and July 4, 2015 (in thousands):

	Balance at						Balance at
	Beginning		Accruals for		Settlements		End of
	of Period		Warranties		Made		Period
Accrued warranty liability:
July 2, 2016	$	13,349	$	4,297	$	(4,719)	$	12,927
July 4, 2015	$	13,266	$	3,744	$	(3,971)	$	13,039

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Marketable Securities

6 Months Ended

Jul. 02, 2016

Marketable Securities [Abstract]

Marketable Securities

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):

		July 2, 2016
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gain		Loss		Value
U.S. Treasury securities		$	584,156	$	1,293	$	(1)	$	585,448
Foreign government securities			17,999		25		-		18,024
Corporate debt securities			1,453,165		1,934		(380)		1,454,719
Time deposits			166,152		-		-		166,152
Equity securities			77		70		-		147
	Total	$	2,221,549	$	3,322	$	(381)	$	2,224,490
Amounts included in:
	Cash equivalents	$	88,085	$	1	$	-	$	88,086
	Investments		2,133,464		3,321		(381)		2,136,404
	Total	$	2,221,549	$	3,322	$	(381)	$	2,224,490

		December 31, 2015
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gain		Loss		Value
U.S. Treasury securities		$	628,358	$	16	$	(1,218)	$	627,156
Foreign government securities			15,216		-		(17)		15,199
Corporate debt securities			1,325,398		159		(1,239)		1,324,318
Time deposits			74,947		-		-		74,947
Equity securities			77		70		-		147
	Total	$	2,043,996	$	245	$	(2,474)	$	2,041,767
Amounts included in:
	Cash equivalents	$	130,169	$	-	$	-	$	130,169
	Investments		1,913,827		245		(2,474)		1,911,598
	Total	$	2,043,996	$	245	$	(2,474)	$	2,041,767

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

		July 2, 2016		December 31, 2015
Due in one year or less		$	1,251,708	$	1,137,825
Due after one year through three years			806,483		828,848
	Total	$	2,058,191	$	1,966,673

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Inventories

6 Months Ended

Jul. 02, 2016

Inventory Items, Net Of Reserves Alternative [Abstract]

Inventories Disclosure

3  Inventories

Inventories are classified as follows (in thousands):

		July 2, 2016		December 31, 2015
Raw materials		$	93,124	$	88,625
Work in progress			18,240		20,901
Finished goods			175,083		153,889
	Total inventories	$	286,447	$	263,415

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Goodwill and Other Intangibles

6 Months Ended

Jul. 02, 2016

Goodwill and Other Intangibles [Abstract]

Goodwill and Other Intangibles

4  Goodwill and Other Intangibles

The carrying amount of goodwill was $353 million and $357 million at July 2, 2016 and December 31, 2015, respectively. During the six months ended July 2, 2016, 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):

		July 2, 2016						December 31, 2015
						Weighted-						Weighted-
		Gross				Average		Gross				Average
		Carrying		Accumulated		Amortization		Carrying		Accumulated		Amortization
		Amount		Amortization		Period		Amount		Amortization		Period
Capitalized software		$	359,378	$	221,241	6	years	$	335,949	$	204,267	7	years
Purchased intangibles			163,468		124,872	11	years		163,500		119,505	11	years
Trademarks and IPR&D			13,870		-				14,364		-
Licenses			4,948		3,927	6	years		5,396		4,046	6	years
Patents and other
	intangibles		60,209		34,440	8	years		58,519		31,888	8	years
	Total	$	601,873	$	384,480	7	years	$	577,728	$	359,706	8	years

During the six months ended July 2, 2016, the effect of foreign currency translation increased the gross carrying value of intangible assets and accumulated amortization for intangible assets by $4 million and $2 million, respectively. Amortization expense for intangible assets was $11 million for boththe three months endedJuly 2, 2016and July 4, 2015.Amortization expense for intangible assets was $22 million for boththe six months endedJuly 2, 2016and July 4, 2015.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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Debt

6 Months Ended

Jul. 02, 2016

Debt [Abstract]

Debt Disclosure

5  Debt

On May 12, 2016, the Company issued and sold the following senior unsecured notes:

Senior			Face Value
Unsecured Notes	Term	Interest Rate	(in millions)		Maturity Date
Series I	7 years	3.13%	$	50	May 2023
Series J	8 years	Floating Rate*	$	40	May 2024
Series K	10 years	3.44%	$	160	May 2026
*Series J senior unsecured notes bear interest at 3 month LIBOR for that floating rate interest period plus 1.45%.

Of the $250 million of proceeds received from the issuance of the new senior unsecured notes, $225 million were used to repay outstanding portions of the revolving facilities. Interest on the Series I and K senior unsecured notes is payable semi-annually each year. Interest on Series J 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 J senior unsecured notes.Other provisions for these senior unsecured notes are similar to the existing senior unsecured notes, as described below.

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 July 2, 2016, $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 $635 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 July 2, 2016 and December 31, 2015, the Company had a total of $700 million and $500 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 and J 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 3.50:1for 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 July 2, 2016 and December 31, 2015(in thousands):

		July 2, 2016		December 31, 2015
Foreign subsidiary lines of credit		$	260	$	322
Senior unsecured notes - Series C - 2.50%, due March 2016			-		50,000
Credit agreements			125,000		125,000
Unamortized debt issuance costs			-		(13)
	Total notes payable and debt		125,260		175,309
Senior unsecured notes - Series B - 5.00%, due February 2020			100,000		100,000
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
Senior unsecured notes - Series I - 3.13%, due May 2023			50,000		-
Senior unsecured notes - Series J - floating rate**, due May 2024			40,000		-
Senior unsecured notes - Series K - 3.44%, due May 2026			160,000		-
Credit agreements			935,000		1,045,000
Unamortized debt issuance costs			(3,302)		(1,973)
	Total long-term debt		1,631,698		1,493,027
Total debt		$	1,756,958	$	1,668,336
* Series H senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.25%.
** Series J senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.45%.

As of July 2, 2016 and December 31, 2015, the Company had a total amount available to borrowunder the existing credit agreements of $538million and $428 million, respectively, after outstanding letters of credit. The weighted-average interest rates applicable to the senior unsecured notes and credit agreement borrowings collectively were 2.40% and 2.11% at July 2, 2016 and December 31, 2015, respectively.As of July 2, 2016, the Company was in compliance with all debt covenants.

The Company and its foreign subsidiaries also had available short-term lines of credit totaling $101 million and$97million at July 2, 2016 and December 31, 2015, respectively, for the purpose of short-term borrowing and issuance of commercial guarantees. At July 2, 2016 and December 31, 2015, the weighted-average interest rates applicable to these short-term borrowings were1.48%and 1.24%, respectively.

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Income Taxes

6 Months Ended

Jul. 02, 2016

Income Taxes [Abstract]

Income Taxes

6  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% and 0%, respectively, as of July 2, 2016. The Company has a contractual tax rate in Singapore of 0% through March 2021, based upon the achievement of certain contractual milestones, which the Company expects to continue to meet. The current statutory tax rate in Singapore is 17%. For the first half of 2016, the effect of applying the contractual tax rate in Singapore, as compared with applying the statutory tax rate, increased net income by $10 million and increased net income per diluted share by $0.12.

The Company's effective tax rate was 11.9% and 14.6% for the three months ended July 2, 2016 and July 4, 2015, respectively. The Company's effective tax rate was 11.8%and 14.9%for the six months ended July 2, 2016and July 4, 2015, respectively.The decrease in the effective tax rates for the three and six months ended July 2, 2016 as compared to the three and six months ended July 4, 2015 can be attributed to the release of a valuation allowance oncertain net operating losscarryforwards and to differences in the proportionate amounts of pre-tax income recognized in jurisdictions with different effective tax rates. The effective tax rate for the six months ended July 2, 2016was also impacted by a tax benefit recorded in the first quarter of 2016 associated with modifications to certain stock compensation awards.In addition, the effective tax rate for the three and six months ended July 4, 2015did not include the U.S. research and development tax credit as it was not enacted by the government or recognized by the Company until the fourth quarter of 2015.

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 tax 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 six months ended July 2, 2016 and July 4, 2015 (in thousands):

		July 2, 2016		July 4, 2015
Balance at the beginning of the period		$	14,450	$	19,596
	Net changes in uncertain tax benefits		(2,563)		57
Balance at the end of the period		$	11,887	$	19,653

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, 2012. However, carryforwardtax attributes that were generated in years beginning on or before January 1, 2013 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 July 2, 2016, 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 potential tax audit settlements and 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

6 Months Ended

Jul. 02, 2016

Stock-Based Compensation [Abstract]

Stock-Based Compensation

7  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 six months endedJuly 2, 2016 and July 4, 2015 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				Six Months Ended
		July 2, 2016		July 4, 2015		July 2, 2016		July 4, 2015
Cost of sales		$	656	$	648	$	1,327	$	1,322
Selling and administrative expenses			6,613		6,426		20,582		13,060
Research and development expenses			1,127		1,081		2,328		2,228
	Total stock-based compensation	$	8,396	$	8,155	$	24,237	$	16,610

During the six months ended July 2, 2016, the Company recognized $7 million of stock compensation expense related to the modification of certain stock awards upon the retirement of senior executives.

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 six months endedJuly 2, 2016 and July 4, 2015 are as follows:

	Six Months Ended
Options Issued and Significant Assumptions Used to Estimate Option Fair Values	July 2, 2016	July 4, 2015
Options issued (in thousands)	86	37
Risk-free interest rate	1.5%	1.7%
Expected life in years	5	4
Expected volatility	0.286	0.262
Expected dividends	-	-

	Six Months Ended
Weighted-Average Exercise Price and Fair Value of Options on the Date of Grant	July 2, 2016		July 4, 2015
Exercise price	$	122.65	$	116.65
Fair value	$	34.63	$	28.17

The following table summarizes stock option activity for the plans for the six months endedJuly 2, 2016(in thousands, except per share data):

		Number of Shares	Price per Share					Weighted-Average Exercise Price
Outstanding at December 31, 2015		3,154	$	38.09	to	$	134.37	$	96.73
	Granted	86	$	117.68	to	$	130.35	$	122.65
	Exercised	(252)	$	41.20	to	$	113.36	$	79.21
	Canceled	(50)	$	79.15	to	$	128.93	$	109.16
Outstanding at July 2, 2016		2,938	$	38.09	to	$	134.37	$	98.78

Restricted Stock

During the six months endedJuly 2, 2016, the Company granted eight thousand shares of restricted stock. The fair value of these awards on the grant date was $130.35 per share.

Restricted Stock Units

The following table summarizes the unvested restricted stock unit award activity for the six months endedJuly 2, 2016 (in thousands, except for per share amounts):

		Shares	Weighted-Average Price
Unvested at December 31, 2015		497	$	104.16
	Granted	136	$	117.75
	Vested	(135)	$	97.57
	Forfeited	(9)	$	112.25
Unvested at July 2, 2016		489	$	109.61

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

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Earnings Per Share

6 Months Ended

Jul. 02, 2016

Earnings Per Share [Abstract]

Earnings Per Share

8  Earnings Per Share

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

		Three Months Ended July 2, 2016
		Net Income		Weighted-Average Shares	Per Share
		(Numerator)		(Denominator)	Amount
Net income per basic common share		$	128,217	80,804	$	1.59
Effect of dilutive stock option, restricted
	stock and restricted stock unit securities		-	651		(0.02)
Net income per diluted common share		$	128,217	81,455	$	1.57

		Three Months Ended July 4, 2015
		Net Income		Weighted-Average Shares	Per Share
		(Numerator)		(Denominator)	Amount
Net income per basic common share		$	105,657	82,564	$	1.28
Effect of dilutive stock option, restricted
	stock and restricted stock unit securities		-	768		(0.01)
Net income per diluted common share		$	105,657	83,332	$	1.27

		Six Months Ended July 2, 2016
		Net Income		Weighted-Average Shares	Per Share
		(Numerator)		(Denominator)	Amount
Net income per basic common share		$	222,269	81,043	$	2.74
Effect of dilutive stock option, restricted
	stock and restricted stock unit securities		-	620		(0.02)
Net income per diluted common share		$	222,269	81,663	$	2.72

		Six Months Ended July 4, 2015
		Net Income		Weighted-Average Shares	Per Share
		(Numerator)		(Denominator)	Amount
Net income per basic common share		$	201,718	82,798	$	2.44
Effect of dilutive stock option, restricted
	stock and restricted stock unit securities		-	753		(0.03)
Net income per diluted common share		$	201,718	83,551	$	2.41

For the three and six months endedJuly 2, 2016, the Company had 0.8 million and 1.2 million stock optionsthat were antidilutive, respectively, due to having higher exercise prices than the Company's average stock price during the period. For the three and six months endedJuly 4, 2015, the Company had 0.5 million and 0.6 millionstock optionsthat were antidilutive, respectively. 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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Accumulated Other Comprehensive Income

6 Months Ended

Jul. 02, 2016

Equity [Abstract]

Accumulated Other Comprehensive Income

9Accumulated Other Comprehensive Income

The components of accumulated other comprehensive income are detailed as follows (in thousands):

		Currency Translation		Unrealized Gain (Loss) on Benefit Plans		Unrealized Gain (Loss) on Investments		Accumulated Other Comprehensive Income (Loss)
Balance at December 31, 2015		$	(103,570)	$	(40,946)	$	(2,210)	$	(146,726)
	Other comprehensive (loss) income, net of tax		(15,434)		230		5,001		(10,203)
Balance at July 2, 2016		$	(119,004)	$	(40,716)	$	2,791	$	(156,929)

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Retirement Plans

6 Months Ended

Jul. 02, 2016

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 six months endedJuly 2, 2016 and July 4, 2015 is as follows (in thousands):

		Three Months Ended
		July 2, 2016						July 4, 2015
		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		$	94	$	116	$	1,250	$	-	$	262	$	1,337
Interest cost			1,745		135		429		1,513		118		402
Expected return on plan
	assets		(2,417)		(130)		(406)		(2,318)		(122)		(410)
Net amortization:
	Prior service (credit) cost		-		-		(49)		-		-		14
	Net actuarial loss		667		-		192		679		-		273
Net periodic pension
	cost (benefit)	$	89	$	121	$	1,416	$	(126)	$	258	$	1,616

		Six Months Ended
		July 2, 2016						July 4, 2015
		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		$	188	$	232	$	2,468	$	-	$	524	$	2,674
Interest cost			3,490		270		850		3,026		236		804
Expected return on plan
	assets		(4,834)		(260)		(805)		(4,636)		(244)		(820)
Net amortization:
	Prior service (credit) cost		-		-		(94)		-		-		28
	Net actuarial loss		1,334		-		380		1,358		-		546
Net periodic pension
	cost (benefit)	$	178	$	242	$	2,799	$	(252)	$	516	$	3,232

During fiscal year 2016, the Company expects to contribute a total of approximately $5 million to $10 million to the Company's defined benefit plans.

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Business Segment Information

6 Months Ended

Jul. 02, 2016

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 and TA.

The Waters operating segment 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. The TA operating segment is primarily in the business of designing, manufacturing, distributing and servicing thermal analysis, rheometry and calorimetry instruments. The Company's two operating segments have 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 six months endedJuly 2, 2016 and July 4, 2015 (in thousands):

			Three Months Ended				Six Months Ended
			July 2, 2016		July 4, 2015		July 2, 2016		July 4, 2015
Product net sales:
	Waters instrument systems		$	231,908	$	217,576	$	420,437	$	406,080
	Chemistry			87,048		77,739		171,198		155,922
	TA instrument systems			40,731		36,721		75,909		72,907
		Total product sales		359,687		332,036		667,544		634,909
Service net sales:
	Waters service			159,775		146,917		311,289		289,898
	TA service			17,098		15,787		32,973		30,337
		Total service sales		176,873		162,704		344,262		320,235
Total net sales			$	536,560	$	494,740	$	1,011,806	$	955,144

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Recent Accounting Standard Changes and Developments

6 Months Ended

Jul. 02, 2016

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 date by one year to annual and interim periods beginning after December 15, 2017. Adoption prior to December 15, 2016 is not permitted. In March 2016, the FASB clarified the implementation guidance on principal versus agent considerations and, in April 2016, clarification was made regarding certain aspects of identifying performance obligations and licensing implementation guidance. In May 2016, additional guidance was issued related to disclosure of remaining performance obligations, as well as other amendments to guidance on collectibility, non-cash consideration and the presentation of sales and other similar taxes collected from customers. 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 July 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.

In January 2016, accounting guidance was issued which primarily affects the classification and measurement of certain financial instruments, principally equity investments and certain financial liabilities. Under the new guidance, there will no longer be an available-for-sale classification for equity securities with readily determinable fair values. Changes to the fair value of equity investments will be recognized through earnings. Equity investments carried at cost should be adjusted for changes in observable prices, as applicable, and qualitatively assessed for impairment annually. Changes to the fair value of financial liabilities under the fair value option due to instrument specific credit risk will be recognized separately in other comprehensive income. The new guidance also requires financial assets and financial liabilities to be presented separately and grouped by measurement category in the notes to the financial statements. This guidance is effective for annual and interim reporting periods beginning after December 15, 2017 and early adoption of certain provisions of this guidance 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 February 2016, accounting guidance was issued regarding the accounting for leases. This new comprehensive lease standard amends various aspects of existing accounting guidance for leases. The core principle of the new guidance will require lessees to present the assets and liabilities that arise from leases on their balance sheets. This guidance is effective for annual and interim reporting periods beginning after December 15, 2018 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 March 2016, accounting guidance was issued which simplifies the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. This guidance is effective for annual and interim reporting periods beginning after December 15, 2016 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 June 2016, accounting guidance was issued that modifies the recognition of credit losses related to financial assets, such as debt securities, trade receivables, net investments in leases, off-balance sheet credit exposures, and other financial assets that have the contractual right to receive cash. Current guidance requires the recognition of a credit loss when it is considered probable that a loss event was incurred. The new guidance requires the measurement of expected credit losses to be based upon relevant information, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the asset. As such, expected credit losses may be recognized sooner under the new guidance due to the broader range of information that will be required to determine credit loss estimates. The new guidance also amends the current other-than-temporary impairment model used for debt securities classified as available-for-sale. When the fair value of an available-for-sale debt security is below its amortized cost, the new guidance requires the total unrealized loss to be bifurcated into its credit and non-credit components. Any expected credit losses or subsequent recoveries will be recognized in earnings and any changes not considered credit related will continue to be recognized within other comprehensive income. This guidance is effective for annual and interim periods beginning after December 15, 2019. 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 (Policies)

6 Months Ended

Jul. 02, 2016

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

Nature of Operations

Waters Corporation (“Waters®” or the “Company”) is an analytical instrument manufacturer that primarily designs, manufactures, sells and serviceshigh 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. In addition, the Company designs, manufactures, sells and services thermal analysis, rheometry and calorimetry instruments through its TA® product line. These instruments 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 pharmaceutical 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

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 second fiscal quarters for 2016 and 2015 ended on July 2, 2016 and July 4, 2015, 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, 2015, as filed with the U.S. Securities and Exchange Commission on February 26, 2016.

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.

Principles of Consolidation

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

Translation of Foreign Currencies

Translation of Foreign Currencies

For most of the Company's foreign operations, assets and liabilities are translated into U.S. dollars at exchange rates prevailing on the balance sheet date, while revenues and expenses are translated at average exchange rates prevailing during the period. The functional currency of each of the Company's foreign operating subsidiaries is the local currency of that particular country, except for the Company's subsidiaries in Hong Kong, Singapore and the Cayman Islands, where the underlying transactional cash flows are denominated in currencies other than the respective local currency of domicile. The functional currency of the Hong Kong, Singapore and Cayman Islands subsidiaries is the U.S. dollar, based on the respective entity's cash flows.

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 July 2, 2016 and December 31, 2015. 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.

Derivatives Policy

The foreign currency exchange contracts are not designated for hedge accounting treatment.

Product Warranty Costs

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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Income Taxes (Policies)

6 Months Ended

Jul. 02, 2016

Income Taxes [Abstract]

Income Tax 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 tax 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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Stock-Based Compensation (Policies)

6 Months Ended

Jul. 02, 2016

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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Earnings Per Share (Policies)

6 Months Ended

Jul. 02, 2016

Earnings Per Share [Abstract]

Earnings Per Share Policy

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

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Recent Accounting Standard Changes and Develpments (Policies)

6 Months Ended

Jul. 02, 2016

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 date by one year to annual and interim periods beginning after December 15, 2017. Adoption prior to December 15, 2016 is not permitted. In March 2016, the FASB clarified the implementation guidance on principal versus agent considerations and, in April 2016, clarification was made regarding certain aspects of identifying performance obligations and licensing implementation guidance. In May 2016, additional guidance was issued related to disclosure of remaining performance obligations, as well as other amendments to guidance on collectibility, non-cash consideration and the presentation of sales and other similar taxes collected from customers. 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 July 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.

In January 2016, accounting guidance was issued which primarily affects the classification and measurement of certain financial instruments, principally equity investments and certain financial liabilities. Under the new guidance, there will no longer be an available-for-sale classification for equity securities with readily determinable fair values. Changes to the fair value of equity investments will be recognized through earnings. Equity investments carried at cost should be adjusted for changes in observable prices, as applicable, and qualitatively assessed for impairment annually. Changes to the fair value of financial liabilities under the fair value option due to instrument specific credit risk will be recognized separately in other comprehensive income. The new guidance also requires financial assets and financial liabilities to be presented separately and grouped by measurement category in the notes to the financial statements. This guidance is effective for annual and interim reporting periods beginning after December 15, 2017 and early adoption of certain provisions of this guidance 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 February 2016, accounting guidance was issued regarding the accounting for leases. This new comprehensive lease standard amends various aspects of existing accounting guidance for leases. The core principle of the new guidance will require lessees to present the assets and liabilities that arise from leases on their balance sheets. This guidance is effective for annual and interim reporting periods beginning after December 15, 2018 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 March 2016, accounting guidance was issued which simplifies the accounting for share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities and classification on the statement of cash flows. This guidance is effective for annual and interim reporting periods beginning after December 15, 2016 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 June 2016, accounting guidance was issued that modifies the recognition of credit losses related to financial assets, such as debt securities, trade receivables, net investments in leases, off-balance sheet credit exposures, and other financial assets that have the contractual right to receive cash. Current guidance requires the recognition of a credit loss when it is considered probable that a loss event was incurred. The new guidance requires the measurement of expected credit losses to be based upon relevant information, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the asset. As such, expected credit losses may be recognized sooner under the new guidance due to the broader range of information that will be required to determine credit loss estimates. The new guidance also amends the current other-than-temporary impairment model used for debt securities classified as available-for-sale. When the fair value of an available-for-sale debt security is below its amortized cost, the new guidance requires the total unrealized loss to be bifurcated into its credit and non-credit components. Any expected credit losses or subsequent recoveries will be recognized in earnings and any changes not considered credit related will continue to be recognized within other comprehensive income. This guidance is effective for annual and interim periods beginning after December 15, 2019. 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 Significant Accounting Policies (Tables)

6 Months Ended

Jul. 02, 2016

Fair Value Disclosures [Abstract]

Fair Value, Assets And Liabilities

The following table represents the Company's assets and liabilities measured at fair value on a recurring basis at July 2, 2016 (in thousands):

					Quoted Prices
					in Active		Significant
					Markets		Other		Significant
					for Identical		Observable		Unobservable
			Total at		Assets		Inputs		Inputs
			July 2, 2016		(Level 1)		(Level 2)		(Level 3)
Assets:
	U.S. Treasury securities		$	585,448	$	-	$	585,448	$	-
	Foreign government securities			18,024		-		18,024		-
	Corporate debt securities			1,454,719		-		1,454,719		-
	Time deposits			166,152		-		166,152		-
	Equity securities			147		-		147		-
	Other cash equivalents			11,000		-		11,000		-
	Waters 401(k) Restoration Plan assets			30,031		-		30,031		-
	Foreign currency exchange contracts			174		-		174		-
		Total	$	2,265,695	$	-	$	2,265,695	$	-
Liabilities:
	Contingent consideration		$	4,608	$	-	$	-	$	4,608
	Foreign currency exchange contracts			952		-		952		-
		Total	$	5,560	$	-	$	952	$	4,608

The following table represents the Company's assets and liabilities measured at fair value on a recurring basis at December 31, 2015 (in thousands):

					Quoted Prices
					in Active		Significant
					Markets		Other		Significant
			Total at		for Identical		Observable		Unobservable
			December 31,		Assets		Inputs		Inputs
			2015		(Level 1)		(Level 2)		(Level 3)
Assets:
	U.S. Treasury securities		$	627,156	$	-	$	627,156	$	-
	Foreign government securities			15,199		-		15,199		-
	Corporate debt securities			1,324,318		-		1,324,318		-
	Time deposits			74,947		-		74,947		-
	Equity securities			147		-		147		-
	Other cash equivalents			27,000		-		27,000		-
	Waters 401(k) Restoration Plan assets			35,823		-		35,823		-
	Foreign currency exchange contracts			616		-		616		-
		Total	$	2,105,206	$	-	$	2,105,206	$	-
Liabilities:
	Contingent consideration		$	4,215	$	-	$	-	$	4,215
	Foreign currency exchange contracts			402		-		402		-
		Total	$	4,617	$	-	$	402	$	4,215

Summary of Derivative Instruments by Risk Exposure [Abstract]

Gains (Losses) on Foreign Exchange Contracts

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

	Three Months Ended				Six Months Ended
	July 2, 2016		July 4, 2015		July 2, 2016		July 4, 2015
Realized (losses) gains on closed contracts	$	(5,637)	$	2,542	$	(7,531)	$	(805)
Unrealized (losses) gains on open contracts		(963)		(280)		(992)		62
Cumulative net pre-tax (losses) gains	$	(6,600)	$	2,262	$	(8,523)	$	(743)

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):

	July 2, 2016		December 31, 2015
Other current assets	$	174	$	616
Other current liabilities	$	952	$	402

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 six months ended July 2, 2016 and July 4, 2015 (in thousands):

	Balance at						Balance at
	Beginning		Accruals for		Settlements		End of
	of Period		Warranties		Made		Period
Accrued warranty liability:
July 2, 2016	$	13,349	$	4,297	$	(4,719)	$	12,927
July 4, 2015	$	13,266	$	3,744	$	(3,971)	$	13,039

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Marketable Securities (Tables)

6 Months Ended

Jul. 02, 2016

Marketable Securities [Abstract]

Schedule of Available-for-Sale Securities Reconciliation

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

		July 2, 2016
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gain		Loss		Value
U.S. Treasury securities		$	584,156	$	1,293	$	(1)	$	585,448
Foreign government securities			17,999		25		-		18,024
Corporate debt securities			1,453,165		1,934		(380)		1,454,719
Time deposits			166,152		-		-		166,152
Equity securities			77		70		-		147
	Total	$	2,221,549	$	3,322	$	(381)	$	2,224,490
Amounts included in:
	Cash equivalents	$	88,085	$	1	$	-	$	88,086
	Investments		2,133,464		3,321		(381)		2,136,404
	Total	$	2,221,549	$	3,322	$	(381)	$	2,224,490

		December 31, 2015
		Amortized		Unrealized		Unrealized		Fair
		Cost		Gain		Loss		Value
U.S. Treasury securities		$	628,358	$	16	$	(1,218)	$	627,156
Foreign government securities			15,216		-		(17)		15,199
Corporate debt securities			1,325,398		159		(1,239)		1,324,318
Time deposits			74,947		-		-		74,947
Equity securities			77		70		-		147
	Total	$	2,043,996	$	245	$	(2,474)	$	2,041,767
Amounts included in:
	Cash equivalents	$	130,169	$	-	$	-	$	130,169
	Investments		1,913,827		245		(2,474)		1,911,598
	Total	$	2,043,996	$	245	$	(2,474)	$	2,041,767

Investments Classified By Contractual Maturity Date

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

		July 2, 2016		December 31, 2015
Due in one year or less		$	1,251,708	$	1,137,825
Due after one year through three years			806,483		828,848
	Total	$	2,058,191	$	1,966,673

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Inventories (Tables)

6 Months Ended

Jul. 02, 2016

Inventory Items, Net Of Reserves Alternative [Abstract]

Inventory, Net of Reserves

Inventories are classified as follows (in thousands):

		July 2, 2016		December 31, 2015
Raw materials		$	93,124	$	88,625
Work in progress			18,240		20,901
Finished goods			175,083		153,889
	Total inventories	$	286,447	$	263,415

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Goodwill and Other Intangibles (Tables)

6 Months Ended

Jul. 02, 2016

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):

		July 2, 2016						December 31, 2015
						Weighted-						Weighted-
		Gross				Average		Gross				Average
		Carrying		Accumulated		Amortization		Carrying		Accumulated		Amortization
		Amount		Amortization		Period		Amount		Amortization		Period
Capitalized software		$	359,378	$	221,241	6	years	$	335,949	$	204,267	7	years
Purchased intangibles			163,468		124,872	11	years		163,500		119,505	11	years
Trademarks and IPR&D			13,870		-				14,364		-
Licenses			4,948		3,927	6	years		5,396		4,046	6	years
Patents and other
	intangibles		60,209		34,440	8	years		58,519		31,888	8	years
	Total	$	601,873	$	384,480	7	years	$	577,728	$	359,706	8	years

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Debt (Tables)

6 Months Ended

Jul. 02, 2016

Debt [Abstract]

Schedule of Outstanding Debt

The Company had the following outstanding debt at July 2, 2016 and December 31, 2015(in thousands):

		July 2, 2016		December 31, 2015
Foreign subsidiary lines of credit		$	260	$	322
Senior unsecured notes - Series C - 2.50%, due March 2016			-		50,000
Credit agreements			125,000		125,000
Unamortized debt issuance costs			-		(13)
	Total notes payable and debt		125,260		175,309
Senior unsecured notes - Series B - 5.00%, due February 2020			100,000		100,000
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
Senior unsecured notes - Series I - 3.13%, due May 2023			50,000		-
Senior unsecured notes - Series J - floating rate**, due May 2024			40,000		-
Senior unsecured notes - Series K - 3.44%, due May 2026			160,000		-
Credit agreements			935,000		1,045,000
Unamortized debt issuance costs			(3,302)		(1,973)
	Total long-term debt		1,631,698		1,493,027
Total debt		$	1,756,958	$	1,668,336
* Series H senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.25%.
** Series J senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.45%.

Schedule of Debt Issuances

On May 12, 2016, the Company issued and sold the following senior unsecured notes:

Senior			Face Value
Unsecured Notes	Term	Interest Rate	(in millions)		Maturity Date
Series I	7 years	3.13%	$	50	May 2023
Series J	8 years	Floating Rate*	$	40	May 2024
Series K	10 years	3.44%	$	160	May 2026
*Series J senior unsecured notes bear interest at 3 month LIBOR for that floating rate interest period plus 1.45%.

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Income Taxes (Tables)

6 Months Ended

Jul. 02, 2016

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 six months ended July 2, 2016 and July 4, 2015 (in thousands):

		July 2, 2016		July 4, 2015
Balance at the beginning of the period		$	14,450	$	19,596
	Net changes in uncertain tax benefits		(2,563)		57
Balance at the end of the period		$	11,887	$	19,653

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Stock-Based Compensation (Tables)

6 Months Ended

Jul. 02, 2016

Stock-Based Compensation [Abstract]

Schedule of Stock-Based Compensation Expense

The consolidated statements of operations for the three and six months endedJuly 2, 2016 and July 4, 2015 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				Six Months Ended
		July 2, 2016		July 4, 2015		July 2, 2016		July 4, 2015
Cost of sales		$	656	$	648	$	1,327	$	1,322
Selling and administrative expenses			6,613		6,426		20,582		13,060
Research and development expenses			1,127		1,081		2,328		2,228
	Total stock-based compensation	$	8,396	$	8,155	$	24,237	$	16,610

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 six months endedJuly 2, 2016 and July 4, 2015 are as follows:

	Six Months Ended
Options Issued and Significant Assumptions Used to Estimate Option Fair Values	July 2, 2016	July 4, 2015
Options issued (in thousands)	86	37
Risk-free interest rate	1.5%	1.7%
Expected life in years	5	4
Expected volatility	0.286	0.262
Expected dividends	-	-

	Six Months Ended
Weighted-Average Exercise Price and Fair Value of Options on the Date of Grant	July 2, 2016		July 4, 2015
Exercise price	$	122.65	$	116.65
Fair value	$	34.63	$	28.17

Stock Options Outstanding Roll Forward

The following table summarizes stock option activity for the plans for the six months endedJuly 2, 2016(in thousands, except per share data):

		Number of Shares	Price per Share					Weighted-Average Exercise Price
Outstanding at December 31, 2015		3,154	$	38.09	to	$	134.37	$	96.73
	Granted	86	$	117.68	to	$	130.35	$	122.65
	Exercised	(252)	$	41.20	to	$	113.36	$	79.21
	Canceled	(50)	$	79.15	to	$	128.93	$	109.16
Outstanding at July 2, 2016		2,938	$	38.09	to	$	134.37	$	98.78

Restricted Stock Units Unvested Roll Forward

The following table summarizes the unvested restricted stock unit award activity for the six months endedJuly 2, 2016 (in thousands, except for per share amounts):

		Shares	Weighted-Average Price
Unvested at December 31, 2015		497	$	104.16
	Granted	136	$	117.75
	Vested	(135)	$	97.57
	Forfeited	(9)	$	112.25
Unvested at July 2, 2016		489	$	109.61

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Earnings Per Share (Tables)

6 Months Ended

Jul. 02, 2016

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 July 2, 2016
		Net Income		Weighted-Average Shares	Per Share
		(Numerator)		(Denominator)	Amount
Net income per basic common share		$	128,217	80,804	$	1.59
Effect of dilutive stock option, restricted
	stock and restricted stock unit securities		-	651		(0.02)
Net income per diluted common share		$	128,217	81,455	$	1.57

		Three Months Ended July 4, 2015
		Net Income		Weighted-Average Shares	Per Share
		(Numerator)		(Denominator)	Amount
Net income per basic common share		$	105,657	82,564	$	1.28
Effect of dilutive stock option, restricted
	stock and restricted stock unit securities		-	768		(0.01)
Net income per diluted common share		$	105,657	83,332	$	1.27

		Six Months Ended July 2, 2016
		Net Income		Weighted-Average Shares	Per Share
		(Numerator)		(Denominator)	Amount
Net income per basic common share		$	222,269	81,043	$	2.74
Effect of dilutive stock option, restricted
	stock and restricted stock unit securities		-	620		(0.02)
Net income per diluted common share		$	222,269	81,663	$	2.72

		Six Months Ended July 4, 2015
		Net Income		Weighted-Average Shares	Per Share
		(Numerator)		(Denominator)	Amount
Net income per basic common share		$	201,718	82,798	$	2.44
Effect of dilutive stock option, restricted
	stock and restricted stock unit securities		-	753		(0.03)
Net income per diluted common share		$	201,718	83,551	$	2.41

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Accumulated Other Comprehensive Income (Tables)

6 Months Ended

Jul. 02, 2016

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income

The components of accumulated other comprehensive income are detailed as follows (in thousands):

		Currency Translation		Unrealized Gain (Loss) on Benefit Plans		Unrealized Gain (Loss) on Investments		Accumulated Other Comprehensive Income (Loss)
Balance at December 31, 2015		$	(103,570)	$	(40,946)	$	(2,210)	$	(146,726)
	Other comprehensive (loss) income, net of tax		(15,434)		230		5,001		(10,203)
Balance at July 2, 2016		$	(119,004)	$	(40,716)	$	2,791	$	(156,929)

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Retirement Plans (Tables)

6 Months Ended

Jul. 02, 2016

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 six months endedJuly 2, 2016 and July 4, 2015 is as follows (in thousands):

		Three Months Ended
		July 2, 2016						July 4, 2015
		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		$	94	$	116	$	1,250	$	-	$	262	$	1,337
Interest cost			1,745		135		429		1,513		118		402
Expected return on plan
	assets		(2,417)		(130)		(406)		(2,318)		(122)		(410)
Net amortization:
	Prior service (credit) cost		-		-		(49)		-		-		14
	Net actuarial loss		667		-		192		679		-		273
Net periodic pension
	cost (benefit)	$	89	$	121	$	1,416	$	(126)	$	258	$	1,616

		Six Months Ended
		July 2, 2016						July 4, 2015
		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		$	188	$	232	$	2,468	$	-	$	524	$	2,674
Interest cost			3,490		270		850		3,026		236		804
Expected return on plan
	assets		(4,834)		(260)		(805)		(4,636)		(244)		(820)
Net amortization:
	Prior service (credit) cost		-		-		(94)		-		-		28
	Net actuarial loss		1,334		-		380		1,358		-		546
Net periodic pension
	cost (benefit)	$	178	$	242	$	2,799	$	(252)	$	516	$	3,232

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Business Segment Information (Tables)

6 Months Ended

Jul. 02, 2016

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 six months endedJuly 2, 2016 and July 4, 2015 (in thousands):

			Three Months Ended				Six Months Ended
			July 2, 2016		July 4, 2015		July 2, 2016		July 4, 2015
Product net sales:
	Waters instrument systems		$	231,908	$	217,576	$	420,437	$	406,080
	Chemistry			87,048		77,739		171,198		155,922
	TA instrument systems			40,731		36,721		75,909		72,907
		Total product sales		359,687		332,036		667,544		634,909
Service net sales:
	Waters service			159,775		146,917		311,289		289,898
	TA service			17,098		15,787		32,973		30,337
		Total service sales		176,873		162,704		344,262		320,235
Total net sales			$	536,560	$	494,740	$	1,011,806	$	955,144

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Basis of Presentation and Summary of Significant Accounting Policies (Details) - USD ($) shares in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	May 31, 2014	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015	Dec. 31, 2015
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		$ 2,600,000,000		$ 2,600,000,000		$ 2,399,000,000
Derivative [Line Items]
Foreign currency exposure				The Company is a global company that operates in over 35 countries and, as a result, the Company’s net sales, cost of sales, operating expenses and balance sheet amounts are significantly impacted by fluctuations in foreign currency exchange rates.
Maturity period of foreign exchange contracts				The Company periodically aggregates its net worldwide balances by currency and then enters into foreign currency exchange contracts that mature within 90 days to hedge a portion of the remaining balance to minimize some of the Company’s currency price risk exposure.
Notional amount of foreign exchange contracts		128,000,000		$ 128,000,000		116,000,000
Realized (losses) gains on foreign exchange contracts		(5,637,000)	$ 2,542,000	(7,531,000)	$ (805,000)
Unrealized (losses) gains on foreign exchange contracts		(963,000)	(280,000)	(992,000)	62,000
Cumulative net pre-tax (losses) gains on foreign exchange contracts		(6,600,000)	2,262,000	(8,523,000)	(743,000)
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Marketable securities		2,224,490,000		2,224,490,000		2,041,767,000
Debt [Line Items]
Long-term debt		1,631,698,000		1,631,698,000		1,493,027,000
Warranty Accrual Roll Forward [Abstract]
Accrued warranty liability, balance at beginning of period				13,349,000	13,266,000
Accruals for warranties				4,297,000	3,744,000
Settlements made				(4,719,000)	(3,971,000)
Accrued warranty liability, balance at end of period		12,927,000	$ 13,039,000	12,927,000	$ 13,039,000
Fair Value Measurements, Recurring
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Other cash equivalents		11,000,000		11,000,000		27,000,000
Waters 401(k) Restoration Plan assets		30,031,000		30,031,000		35,823,000
Forward foreign exchange contract assets		174,000		174,000		616,000
Fair value of total assets measured on a recurring basis		2,265,695,000		2,265,695,000		2,105,206,000
Contingent consideration		4,608,000		4,608,000		4,215,000
Forward foreign exchange contract liabilities		952,000		952,000		402,000
Fair value of total liabilities measured on a recurring basis		5,560,000		5,560,000		4,617,000
Fair Value Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Other cash equivalents		11,000,000		11,000,000		27,000,000
Waters 401(k) Restoration Plan assets		30,031,000		30,031,000		35,823,000
Forward foreign exchange contract assets		174,000		174,000		616,000
Fair value of total assets measured on a recurring basis		2,265,695,000		2,265,695,000		2,105,206,000
Forward foreign exchange contract liabilities		952,000		952,000		402,000
Fair value of total liabilities measured on a recurring basis		952,000		952,000		402,000
Fair Value Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Contingent consideration		4,608,000		4,608,000		4,215,000
Fair value of total liabilities measured on a recurring basis		4,608,000		4,608,000		4,215,000
Held in currencies other than U.S. dollars [Member]
Cash Equivalents and Investments [Line Items]
Cash, cash equivalents and investments		252,000,000		$ 252,000,000		248,000,000
Programs authorized by Board of Directors [Member]
Stock Repurchase Program [Line Items]
Treasury stock shares acquired				1.3	1.3
Treasury stock				$ 166,000,000	$ 165,000,000
Related to Vesting of Restricted Stock Units [Member]
Stock Repurchase Program [Line Items]
Treasury stock				6,000,000	$ 6,000,000
May 2014 Program [Member]
Stock Repurchase Program [Line Items]
Stock repurchase program authorization amount	$ 750,000,000
Stock repurchase program remaining amount authorized for future purchases		275,000,000		275,000,000
Stock repurchase program period	3 years
US Treasury Securities | Fair Value Measurements, Recurring
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Marketable securities		585,448,000		585,448,000		627,156,000
US Treasury Securities | Fair Value Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Marketable securities		585,448,000		585,448,000		627,156,000
Foreign Government Debt Securities | Fair Value Measurements, Recurring
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Marketable securities		18,024,000		18,024,000		15,199,000
Foreign Government Debt Securities | Fair Value Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Marketable securities		18,024,000		18,024,000		15,199,000
Corporate Debt Securities | Fair Value Measurements, Recurring
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Marketable securities		1,454,719,000		1,454,719,000		1,324,318,000
Corporate Debt Securities | Fair Value Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Marketable securities		1,454,719,000		1,454,719,000		1,324,318,000
Time Deposits | Fair Value Measurements, Recurring
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Marketable securities		166,152,000		166,152,000		74,947,000
Time Deposits | Fair Value Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Marketable securities		166,152,000		166,152,000		74,947,000
Equity Securities | Fair Value Measurements, Recurring
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Marketable securities		147,000		147,000		147,000
Equity Securities | Fair Value Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value of Assets and Liabilities Measured on a Recurring and Nonrecurring Basis [Line Items]
Marketable securities		147,000		147,000		147,000
Unsecured debt | Fixed interest rate [Member]
Debt [Line Items]
Long-term debt		610,000,000		610,000,000		450,000,000
Fair value of debt instrument		623,000,000		623,000,000		454,000,000
Held by foreign subsidiaries [Member]
Cash Equivalents and Investments [Line Items]
Cash, cash equivalents and investments		$ 2,559,000,000		$ 2,559,000,000		$ 2,346,000,000

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Marketable Securities (Details) - USD ($) $ in Thousands	Jul. 02, 2016	Dec. 31, 2015
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	$ 2,221,549	$ 2,043,996
Unrealized Gain	3,322	245
Unrealized Loss	(381)	(2,474)
Fair Value	2,224,490	2,041,767
Debt securities due in one year or less	1,251,708	1,137,825
Due after one year through three years	806,483	828,848
Total debt securities	2,058,191	1,966,673
Cash Equivalents [Member]
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	88,085	130,169
Unrealized Gain	1
Fair Value	88,086	130,169
Investments [Member]
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	2,133,464	1,913,827
Unrealized Gain	3,321	245
Unrealized Loss	(381)	(2,474)
Fair Value	2,136,404	1,911,598
US Treasury Securities
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	584,156	628,358
Unrealized Gain	1,293	16
Unrealized Loss	(1)	(1,218)
US Treasury Securities | Fair Value Measurements, Recurring
Schedule of Available-for-Sale Securities [Line Items]
Fair Value	585,448	627,156
Foreign Government Debt Securities
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	17,999	15,216
Unrealized Gain	25
Unrealized Loss		(17)
Foreign Government Debt Securities | Fair Value Measurements, Recurring
Schedule of Available-for-Sale Securities [Line Items]
Fair Value	18,024	15,199
Corporate Debt Securities
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	1,453,165	1,325,398
Unrealized Gain	1,934	159
Unrealized Loss	(380)	(1,239)
Corporate Debt Securities | Fair Value Measurements, Recurring
Schedule of Available-for-Sale Securities [Line Items]
Fair Value	1,454,719	1,324,318
Time Deposits
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	166,152	74,947
Time Deposits | Fair Value Measurements, Recurring
Schedule of Available-for-Sale Securities [Line Items]
Fair Value	166,152	74,947
Equity Securities
Schedule of Available-for-Sale Securities [Line Items]
Amortized Cost	77	77
Unrealized Gain	70	70
Equity Securities | Fair Value Measurements, Recurring
Schedule of Available-for-Sale Securities [Line Items]
Fair Value	$ 147	$ 147

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Inventories (Details) - USD ($) $ in Thousands	Jul. 02, 2016	Dec. 31, 2015
Inventory Items, Net Of Reserves Alternative [Abstract]
Raw materials	$ 93,124	$ 88,625
Work in progress	18,240	20,901
Finished goods	175,083	153,889
Total inventories	$ 286,447	$ 263,415

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Goodwill and Other Intangibles (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015	Dec. 31, 2015
Goodwill [Line Items]
Goodwill	$ 352,987		$ 352,987		$ 356,864
Goodwill foreign currency translation adjustments			(4,000)
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, accumulated amortization	384,480		$ 384,480		$ 359,706
Finite-lived intangible assets, average useful life in years			7 years		8 years
Indefinite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	13,870		$ 13,870		$ 14,364
Intangible Assets [Line Items]
Intangible assets, gross	601,873		601,873		577,728
Intangible assets, gross foreign currency translation adjustments			4,000
Intangible assets, accumulated amortization foreign currency translation adjustments			2,000
Amortization expense	11,000	$ 11,000	22,000	$ 22,000
FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract
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]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	359,378		359,378		335,949
Finite-lived intangible assets, accumulated amortization	221,241		$ 221,241		$ 204,267
Finite-lived intangible assets, average useful life in years			6 years		7 years
Purchased intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	163,468		$ 163,468		$ 163,500
Finite-lived intangible assets, accumulated amortization	124,872		$ 124,872		$ 119,505
Finite-lived intangible assets, average useful life in years			11 years		11 years
Licenses [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	4,948		$ 4,948		$ 5,396
Finite-lived intangible assets, accumulated amortization	3,927		$ 3,927		$ 4,046
Finite-lived intangible assets, average useful life in years			6 years		6 years
Patents and other intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible assets, gross	60,209		$ 60,209		$ 58,519
Finite-lived intangible assets, accumulated amortization	$ 34,440		$ 34,440		$ 31,888
Finite-lived intangible assets, average useful life in years			8 years		8 years

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Debt (Details) - USD ($)			6 Months Ended		12 Months Ended
		May 12, 2016	Jul. 02, 2016	Jul. 04, 2015	Dec. 31, 2015	Apr. 30, 2015	Jun. 30, 2013
Debt [Line Items]
Notes payable and debt			$ 125,260,000		$ 175,309,000
Long-term debt			1,631,698,000		1,493,027,000
Total debt			1,756,958,000		1,668,336,000
Proceeds from debt issuances			400,177,000	$ 195,073,000
Line of Credit [Line Items]
Foreign subsidiary lines of credit			260,000		322,000
Line of credit maximum borrowing capacity			$ 101,000,000		$ 97,000,000
Line of credit interest rate during the period			1.48%		1.24%
Current Liabilities
Debt [Line Items]
Unamortized debt issuance costs					$ (13,000)
Long-Term Liabilities
Debt [Line Items]
Unamortized debt issuance costs			$ (3,302,000)		(1,973,000)
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
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 notes - 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
Senior unsecured notes - Series I [Member]
Debt [Line Items]
Face value of debt		$ 50,000,000
Debt term			7 years
Stated interest rate on debt instrument			3.13%
Long-term debt			$ 50,000,000
Senior unsecured notes - Series J [Member]
Debt [Line Items]
Face value of debt		40,000,000
Debt term			8 years
Interest rate terms on debt			** Series J senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.45%.
Long-term debt	[2]		$ 40,000,000
Senior unsecured notes - Series K [Member]
Debt [Line Items]
Face value of debt		160,000,000
Debt term			10 years
Stated interest rate on debt instrument			3.44%
Long-term debt			$ 160,000,000
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			935,000,000		1,045,000,000
Unused borrowing capacity			538,000,000		428,000,000
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
Long-term debt			$ 635,000,000
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 and J 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.
Total debt			$ 700,000,000		$ 500,000,000
Proceeds from debt issuances		250,000,000
Unsecured debt | Payments towards outstanding portion of revolving facility [Member]
Debt [Line Items]
Proceeds from debt issuances		$ 225,000,000
Credit Agreements and Unsecured Debt [Member]
Debt [Line Items]
Weighted-average interest rate			2.40%		2.11%

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

[2] ** Series J senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.45%.

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Income Taxes (Details 1) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Effective Income Tax Rate Reconciliation, Percent [Line Items]
Income tax holiday amount			$ 10
Income tax holiday per share benefit			$ 0.12
Effective income tax rate	11.90%	14.60%	11.80%	14.90%
United States [Member]
Effective Income Tax Rate Reconciliation, Percent [Line Items]
Marginal effective income tax rate			37.50%
Ireland [Member]
Effective Income Tax Rate Reconciliation, Percent [Line Items]
Marginal effective income tax rate			12.50%
United Kingdom [Member]
Effective Income Tax Rate Reconciliation, Percent [Line Items]
Marginal effective income tax rate			20.00%
Singapore [Member]
Effective Income Tax Rate Reconciliation, Percent [Line Items]
Marginal effective income tax rate			0.00%
Statutory tax rate			17.00%

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Income Taxes (Details 2) - USD ($) $ in Thousands	6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Unrecognized tax benefits, balance at the beginning of the period	$ 14,450	$ 19,596
Net changes in uncertain tax benefits	(2,563)	57
Unrecognized tax benefits, balance at the end of the period	11,887	$ 19,653
Expected change in unrecognized tax benefits in the next twelve months	$ (5,000)

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Stock-Based Compensation (Details) - USD ($) $ / shares in Units, shares in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Stock Option Fair Value Assumptions and Methodology [Abstract]
Stock option fair value assumptions, risk free interest rate			1.50%	1.70%
Stock option fair value assumptions, expected life in years			5 years	4 years
Stock option fair value assumptions, expected volatility			28.60%	26.20%
Stock option fair value assumptions, expected dividends			$ 0	$ 0
Weighted-average grant date fair value of options granted			$ 34.63	$ 28.17
Stock Options Outstanding Roll Forward [Abstract]
Options outstanding at beginning of period			3,154
Options granted			86	37
Options exercised			(252)
Options canceled			(50)
Options outstanding at end of period	2,938		2,938
Weighted-average exercise price of options outstanding at beginning of period			$ 96.73
Weighted-average exercise price of options granted			122.65	$ 116.65
Weighted-average exercise price of options exercised			79.21
Weighted average exercise price of options canceled			109.16
Weighted-average exercise price of options outstanding at end of period	$ 98.78		$ 98.78
Stock-Based Compensation Allocation of Recognized Period Expense [Line Items]
Allocated stock-based compensation expense	$ 8,396,000	$ 8,155,000	$ 24,237,000	$ 16,610,000
Incremental stock-based compensation cost due to acceleration of awards			$ 7,000,000
Minimum
Stock Options Outstanding Roll Forward [Abstract]
Weighted-average exercise price of options outstanding at beginning of period			$ 38.09
Weighted-average exercise price of options granted			117.68
Weighted-average exercise price of options exercised			41.20
Weighted average exercise price of options canceled			79.15
Weighted-average exercise price of options outstanding at end of period	$ 38.09		38.09
Maximum
Stock Options Outstanding Roll Forward [Abstract]
Weighted-average exercise price of options outstanding at beginning of period			134.37
Weighted-average exercise price of options granted			130.35
Weighted-average exercise price of options exercised			113.36
Weighted average exercise price of options canceled			128.93
Weighted-average exercise price of options outstanding at end of period	$ 134.37		$ 134.37
Restricted Stock Plan
Unvested Awards Roll Forward
Shares granted			8
Weighted-average grant date fair value of shares granted			$ 130.35
Restricted Stock Unit Plan
Stock-Based Compensation by Award [Line Items]
Award vesting period			5 years
Unvested Awards Roll Forward
Unvested shares at beginning of period			497
Shares granted			136
Shares vested			(135)
Shares forfeited			(9)
Unvested shares at end of period	489		489
Weighted-average grant date fair value of shares unvested at beginning of period			$ 104.16
Weighted-average grant date fair value of shares granted			117.75
Weighted-average grant date fair value of shares vested			97.57
Weighted-average grant date fair value of shares forfeited			112.25
Weighted-average grant date fair value of shares unvested at end of period	$ 109.61		$ 109.61
Cost of sales [Member]
Stock-Based Compensation Allocation of Recognized Period Expense [Line Items]
Allocated stock-based compensation expense	$ 656,000	648,000	$ 1,327,000	1,322,000
Selling and administrative expenses [Member]
Stock-Based Compensation Allocation of Recognized Period Expense [Line Items]
Allocated stock-based compensation expense	6,613,000	6,426,000	20,582,000	13,060,000
Research and development expenses [Member]
Stock-Based Compensation Allocation of Recognized Period Expense [Line Items]
Allocated stock-based compensation expense	$ 1,127,000	$ 1,081,000	$ 2,328,000	$ 2,228,000

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Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Earnings Per Share Reconciliation [Abstract]
Net income	$ 128,217	$ 105,657	$ 222,269	$ 201,718
Net income per basic common share	$ 1.59	$ 1.28	$ 2.74	$ 2.44
Effect of dilutive stock option, restricted stock and restricted stock unit securities on earnings per share	(0.02)	(0.01)	(0.02)	(0.03)
Net income per diluted common share	$ 1.57	$ 1.27	$ 2.72	$ 2.41
Weighted-average number of basic common shares	80,804	82,564	81,043	82,798
Effect of dilutive stock option, restricted stock and restricted stock unit securities on shares outstanding	651	768	620	753
Weighted-average number of diluted common shares and equivalents	81,455	83,332	81,663	83,551
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive securities excluded from computation of earnings per share	800	500	1,200	600

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Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss, balance at the beginning of the period			$ (146,726)
Other comprehensive (loss) income	$ (28,982)	$ 20,103	(10,203)	$ (39,568)
Accumulated other comprehensive loss, balance at the end of the period	(156,929)		(156,929)
Currency Translation Adjustment
Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss, balance at the beginning of the period			(103,570)
Other comprehensive (loss) income			(15,434)
Accumulated other comprehensive loss, balance at the end of the period	(119,004)		(119,004)
Unrealized Gain (Loss) on Benefit Plans
Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss, balance at the beginning of the period			(40,946)
Other comprehensive (loss) income			230
Accumulated other comprehensive loss, balance at the end of the period	(40,716)		(40,716)
Unrealized Gain (Loss) on Investments
Accumulated Other Comprehensive Income [Line Items]
Accumulated other comprehensive loss, balance at the beginning of the period			(2,210)
Other comprehensive (loss) income			5,001
Accumulated other comprehensive loss, balance at the end of the period	$ 2,791		$ 2,791

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Retirement Plans (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015
Minimum
Amounts Recognized in Other Comprehensive Income [Abstract]
Estimated future employer contributions in current fiscal year			$ 5,000
Maximum
Amounts Recognized in Other Comprehensive Income [Abstract]
Estimated future employer contributions in current fiscal year			10,000
U.S. Pension Plans
Net Periodic Benefit Cost [Abstract]
Service cost	$ 94		188
Interest cost	1,745	$ 1,513	3,490	$ 3,026
Expected return on plan assets	(2,417)	(2,318)	(4,834)	(4,636)
Net amortization: Net actuarial loss	667	679	1,334	1,358
Net periodic pension cost (benefit)	89	(126)	178	(252)
U.S. Retiree Healthcare Plan
Net Periodic Benefit Cost [Abstract]
Service cost	116	262	232	524
Interest cost	135	118	270	236
Expected return on plan assets	(130)	(122)	(260)	(244)
Net periodic pension cost (benefit)	121	258	242	516
Non-U.S. Pension Plans
Net Periodic Benefit Cost [Abstract]
Service cost	1,250	1,337	2,468	2,674
Interest cost	429	402	850	804
Expected return on plan assets	(406)	(410)	(805)	(820)
Net amortization: Prior service (credit) cost	(49)	14	(94)	28
Net amortization: Net actuarial loss	192	273	380	546
Net periodic pension cost (benefit)	$ 1,416	$ 1,616	$ 2,799	$ 3,232

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Business Segment Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2016 USD ($)	Jul. 04, 2015 USD ($)	Jul. 02, 2016 USD ($)	Jul. 04, 2015 USD ($)
Business Segment Information [Line Items]
Number of operating segments			2
Number of reportable segments			1
Product sales	$ 359,687	$ 332,036	$ 667,544	$ 634,909
Service sales	176,873	162,704	344,262	320,235
Total net sales	536,560	494,740	1,011,806	955,144
Waters instrument systems [Member]
Business Segment Information [Line Items]
Product sales	231,908	217,576	420,437	406,080
Chemistry [Member]
Business Segment Information [Line Items]
Product sales	87,048	77,739	171,198	155,922
TA instrument systems [Member]
Business Segment Information [Line Items]
Product sales	40,731	36,721	75,909	72,907
Waters service [Member]
Business Segment Information [Line Items]
Service sales	159,775	146,917	311,289	289,898
TA service [Member]
Business Segment Information [Line Items]
Service sales	$ 17,098	$ 15,787	$ 32,973	$ 30,337