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 June 29, 2019

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)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.01 per share	WAT	New York Stock Exchange, Inc.​​​​​​​

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 every Interactive Data File required to be submitted 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 such files).    Yes  ☒    No  ☐

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

Large accelerated filer	☒	Accelerated filer	☐
Non-accelerated filer	☐	Smaller reporting company	☐
Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ☐

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 July 26, 2019: 66,759,444

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 June 29, 2019 and December 31, 2018		3
	Consolidated Statements of Operations (unaudited) for the three months ended June 29, 2019 and June 30, 2018		4
	Consolidated Statements of Operations (unaudited) for the six months ended June 29, 2019 and June 30, 2018		5
	Consolidated Statements of Comprehensive Income (unaudited) for the three and six months ended June 29, 2019 and June 30, 2018		6
	Consolidated Statements of Cash Flows (unaudited) for the six months ended June 29, 2019 and June 30, 2018		7
	Consolidated Statements of Stockholders’ Equity (unaudited) for the three months ended June 29, 2019 and June 30, 2018		8
	Consolidated Statements of Stockholders’ Equity (unaudited) for the six months ended June 29, 2019 and June 30, 2018		9
	Condensed Notes to Consolidated Financial Statements (unaudited)		10
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		32
Item 3.	Quantitative and Qualitative Disclosures About Market Risk		42
Item 4.	Controls and Procedures		42
PART II	OTHER INFORMATION
Item 1.	Legal Proceedings		43
Item 1A.	Risk Factors		43
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		43
Item 6.	Exhibits		44
	Signature		45

Item 1: Financial Statements

WATERS CORPORATION AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(unaudited)

	June 29, 2019			December 31, 2018
		(In thousands, except per share data)
ASSETS
Current assets:
Cash and cash equivalents	$	587,998		$	796,280
Investments		87,775			938,944
Accounts receivable, net		518,520			568,316
Inventories		351,552			291,569
Other current assets		74,556			68,054
Total current assets		1,620,401			2,663,163
Property, plant and equipment, net		368,878			343,083
Intangible assets, net		244,094			246,902
Goodwill		355,890			355,614
Operating lease assets		91,060			—
Other assets		142,599			118,664
Total assets	$	2,822,922		$	3,727,426
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Notes payable and debt	$	100,295		$	178
Accounts payable		67,397			68,168
Accrued employee compensation		36,464			64,545
Deferred revenue and customer advances		220,711			164,965
Current operating lease liabilities		25,106			—
Accrued treasury stock repurchases		9,874			23,005
Accrued income taxes		38,517			22,943
Accrued warranty		11,583			12,300
Other current liabilities		101,749			92,827
Total current liabilities		611,696			448,931
Long-term liabilities:
Long-term debt		1,048,394			1,148,172
Long-term income tax liabilities		393,297			430,866
Long-term operating lease liabilities		66,713			—
Long-term portion of retirement benefits		55,825			55,853
Other long-term liabilities		90,752			76,346
Total long-term liabilities		1,654,981			1,711,237
Total liabilities		2,266,677			2,160,168
Commitments and contingencies (Notes 6, 7, 8 and 12)
Stockholders’ equity:
Preferred stock, par value $0.01 per share, 5,000 shares authorized, none issued at June 29, 2019 and December 31, 2018		—			—
Common stock, par value $0.01 per share, 400,000 shares authorized, 160,841 and 160,472 shares issued, 67,620 and 73,115 shares outstanding at June 29, 2019 and December 31, 2018, respectively		1,608			1,605
Additional paid-in capital		1,883,958			1,834,741
Retained earnings		6,248,601			5,995,205
Treasury stock, at cost, 93,221 and 87,357 shares at June 29, 2019 and December 31, 2018, respectively		(7,462,826	)		(6,146,322	)
Accumulated other comprehensive loss		(115,096	)		(117,971	)
Total stockholders’ equity		556,245			1,567,258
Total liabilities and stockholders’ equity	$	2,822,922		$	3,727,426

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

3

WATERS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS

(unaudited)

	Three Months Ended
	June 29, 2019			June 30, 2018
	(In thousands, except per share data)
Revenues:
Product sales	$	387,265		$	388,869
Service sales		211,897			207,350
Total net sales		599,162			596,219
Costs and operating expenses:
Cost of product sales		156,975			159,979
Cost of service sales		92,571			83,156
Selling and administrative expenses		133,208			136,645
Research and development expenses		36,490			35,644
Purchased intangibles amortization		2,264			1,602
Total costs and operating expenses		421,508			417,026
Operating income		177,654			179,193
Other expense		(342	)		(1,828	)
Interest expense		(11,448	)		(11,692	)
Interest income		5,871			8,888
Income before income taxes		171,735			174,561
Provision for income taxes		27,325			18,884
Net income	$	144,410		$	155,677
Net income per basic common share	$	2.09		$	2.00
Weighted-average number of basic common shares		68,989			77,833
Net income per diluted common share	$	2.08		$	1.98
Weighted-average number of diluted common shares and equivalents		69,494			78,438

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

4

WATERS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF OPERATIONS

(unaudited)

	Six Months Ended
	June 29, 2019			June 30, 2018
	(In thousands, except per share data)
Revenues:
Product sales	$	707,768		$	727,986
Service sales		405,256			398,903
Total net sales		1,113,024			1,126,889
Costs and operating expenses:
Cost of product sales		289,365			300,445
Cost of service sales		181,212			164,111
Selling and administrative expenses		267,547			267,052
Research and development expenses		71,550			70,124
Purchased intangibles amortization		4,545			3,261
Litigation settlement		—			(1,672	)
Total costs and operating expenses		814,219			803,321
Operating income		298,805			323,568
Other expense		(867	)		(1,482	)
Interest expense		(23,011	)		(25,530	)
Interest income		14,186			18,554
Income before income taxes		289,113			315,110
Provision for income taxes		35,717			47,482
Net income	$	253,396		$	267,628
Net income per basic common share	$	3.60		$	3.42
Weighted-average number of basic common shares		70,331			78,330
Net income per diluted common share	$	3.57		$	3.39
Weighted-average number of diluted common shares and equivalents		70,904			79,041

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

5

WATERS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(unaudited)

	Three Months Ended						Six Months Ended
	June 29, 2019			June 30, 2018			June 29, 2019			June 30, 2018
	(In thousands)						(In thousands)
Net income	$	144,410		$	155,677		$	253,396		$	267,628
Other comprehensive (loss) income:
Foreign currency translation		(7,031	)		(47,159	)		491			(23,246	)
Unrealized gains (losses) on investments before income taxes		710			1,453			3,054			(1,523	)
Income tax (expense) benefit		(157	)		164			(704	)		257
Unrealized gains (losses) on investments, net of tax		553			1,617			2,350			(1,266	)
Retirement liability adjustment before reclassifications		(41	)		669			(102	)		284
Amounts reclassified to other income		90			909			183			1,816
Retirement liability adjustment before income taxes		49			1,578			81			2,100
Income tax expense		(23	)		(306	)		(47	)		(422	)
Retirement liability adjustment, net of tax		26			1,272			34			1,678
Other comprehensive (loss) income		(6,452	)		(44,270	)		2,875			(22,834	)
Comprehensive income	$	137,958		$	111,407		$	256,271		$	244,794

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

6

WATERS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(unaudited)

	Six Months Ended
	June 29, 2019			June 30, 2018
	(In thousands)
Cash flows from operating activities:
Net income	$	253,396		$	267,628
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation		19,255			18,971
Deferred income taxes		1,632			(2,992	)
Depreciation		28,704			30,585
Amortization of intangibles		24,911			25,251
Change in operating assets and liabilities:
Decrease in accounts receivable		52,508			36,591
Increase in inventories		(62,200	)		(33,877	)
Increase in other current assets		(11,627	)		(15,264	)
Increase in other assets		(15,060	)		(2,857	)
Decrease in accounts payable and other current liabilities		(10,439	)		(77,848	)
Increase in deferred revenue and customer advances		54,672			40,134
Effect of the 2017 Tax & Jobs Act		(3,229	)		12,450
Decrease in other liabilities		(29,720	)		(22,215	)
Net cash provided by operating activities		302,803			276,557
Cash flows from investing activities:
Additions to property, plant, equipment and software capitalization		(65,188	)		(36,831	)
Investment in unaffiliated companies		(4,750	)		(3,215	)
Purchases of investments		(35,523	)		(513,342	)
Maturities and sales of investments		890,524			1,759,770
Net cash provided by investing activities		785,063			1,206,382
Cash flows from financing activities:
Proceeds from debt issuances		363			226
Payments on debt		(245	)		(850,000	)
Proceeds from stock plans		30,129			34,845
Purchases of treasury shares		(1,329,635	)		(553,144	)
Proceeds from (payments for) derivative contracts		4,654			(2,158	)
Net cash used in financing activities		(1,294,734	)		(1,370,231	)
Effect of exchange rate changes on cash and cash equivalents		(1,414	)		(12,823	)
(Decrease) increase in cash and cash equivalents		(208,282	)		99,885
Cash and cash equivalents at beginning of period		796,280			642,319
Cash and cash equivalents at end of period	$	587,998		$	742,204

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

7

WATERS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(unaudited, in thousands)

	Number of Common Shares		Common Stock		Additional Paid-In Capital		Retained Earnings		Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Total Stockholders’ Equity
Balance March 31, 2018		160,200	$	1,602	$	1,779,142	$	5,513,362	$	(5,090,581	)	$	(88,631	)	$	2,114,894
Net income		—		—		—		155,677		—			—			155,677
Other comprehensive loss		—		—		—		—		—			(44,270	)		(44,270	)
Issuance of common stock for employees:
Employee Stock Purchase Plan		14		—		2,486		—		—			—			2,486
Stock options exercised		83		1		8,071		—		—			—			8,072
Treasury stock		—		—		—		—		(270,774	)		—			(270,774	)
Stock-based compensation		1		—		9,009		—		—			—			9,009
Balance June 30, 2018		160,298	$	1,603	$	1,798,708	$	5,669,039	$	(5,361,355	)	$	(132,901	)	$	1,975,094
	Number of Common Shares		Common Stock		Additional Paid-In Capital		Retained Earnings		Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Total Stockholders’ Equity
Balance March 30, 2019		160,825	$	1,608	$	1,872,216	$	6,104,191	$	(6,901,629	)	$	(108,644	)	$	967,742
Net income		—		—		—		144,410		—			—			144,410
Other comprehensive loss		—		—		—		—		—			(6,452	)		(6,452	)
Issuance of common stock for employees:
Employee Stock Purchase Plan		15		—		2,498		—		—			—			2,498
Treasury stock		—		—		—		—		(561,197	)		—			(561,197	)
Stock-based compensation		1		—		9,244		—		—			—			9,244
Balance June 29, 2019		160,841	$	1,608	$	1,883,958	$	6,248,601	$	(7,462,826	)	$	(115,096	)	$	556,245

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

8 

WATERS CORPORATION AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(unaudited, in thousands)

	Number of Common Shares		Common Stock		Additional Paid-In Capital		Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Total Stockholders’ Equity
Balance December 31, 2017		159,845	$	1,598	$	1,745,088	$	5,405,380		$	(4,808,211	)	$	(110,067	)	$	2,233,788
Adoption of new accounting pronouncement		—		—		—		(3,969	)		—			—			(3,969	)
Net income		—		—		—		267,628			—			—			267,628
Other comprehensive loss		—		—		—		—			—			(22,834	)		(22,834	)
Issuance of common stock for employees:
Employee Stock Purchase Plan		24		—		4,051		—			—			—			4,051
Stock options exercised		305		3		30,778		—			—			—			30,781
Treasury stock		—		—		—		—			(553,144	)		—			(553,144	)
Stock-based compensation		124		2		18,791		—			—			—			18,793
Balance June 30, 2018		160,298	$	1,603	$	1,798,708	$	5,669,039		$	(5,361,355	)	$	(132,901	)	$	1,975,094
	Number of Common Shares		Common Stock		Additional Paid-In Capital		Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Total Stockholders’ Equity
Balance December 31, 2018		160,472	$	1,605	$	1,834,741	$	5,995,205		$	(6,146,322	)	$	(117,971	)	$	1,567,258
Net income		—		—		—		253,396			—			—			253,396
Other comprehensive income		—		—		—		—			—			2,875			2,875
Issuance of common stock for employees:
Employee Stock Purchase Plan		25		—		4,168		—			—			—			4,168
Stock options exercised		239		2		26,097		—			—			—			26,099
Treasury stock		—		—		—		—			(1,316,504	)		—			(1,316,504	)
Stock-based compensation		105		1		18,952		—			—			—			18,953
Balance June 29, 2019		160,841	$	1,608	$	1,883,958	$	6,248,601		$	(7,462,826	)	$	(115,096	)	$	556,245

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

9  

CONDENSED NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(unaudited)

1 Basis of Presentation and Summary of Significant Accounting Policies

Waters Corporation (the “Company,” “we,” “our,” or “us”) is a specialty measurement company that operates with a fundamental underlying purpose to advance the science that enables our customers to enhance human health and well-being. The Company has pioneered analytical workflow solutions involving liquid chromatography, mass spectrometry and thermal analysis innovations serving the life, materials and food sciences for more than 60 years. The Company primarily designs, manufactures, sells and services high performance liquid chromatography (“HPLC”), ultra performance liquid chromatography (“UPLCTM” 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 common software platforms. 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 technology, principally in conjunction with chromatography, is employed 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 TATM 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 life science research. The Company is also a developer and supplier of advanced software-based products that interface with the Company’s instruments, as well as other manufacturers’ instruments.

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 second fiscal quarters for 2019 and 2018 ended on June 29, 2019 and June 30, 2018, 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 footnote disclosures required for annual financial statements prepared in accordance with 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 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/A for the year ended December 31, 2018, as filed with the U.S. Securities and Exchange Commission (“SEC”) on March 1, 2019.

Translation of Foreign Currencies

The functional currency of each of the Company’s foreign operating subsidiaries is the local currency of its country of domicile, 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.

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 respective period. Any resulting translation gains or losses are included in accumulated other comprehensive income in the consolidated balance sheets.

10

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

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 June 29, 2019 and December 31, 2018, $421 million out of $676 million and $471 million out of $1,735 million, respectively, of the Company’s total cash, cash equivalents and investments were held by foreign subsidiaries. In addition, $256 million out of $676 million and $251 million out of $1,735 million of cash, cash equivalents and investments were held in currencies other than the U.S. dollar at June 29, 2019 and December 31, 2018, respectively.

Accounts Receivable and Allowance for Doubtful Accounts

Trade accounts receivable are recorded at the invoiced amount and do not bear interest. The Company has very limited use of rebates and other cash considerations payable to customers and, as a result, the transaction price determination does not have any material variable consideration. The allowance for doubtful accounts is the best estimate of the amount of probable credit losses in the existing accounts receivable. The allowance is based on a number of factors, including historical experience and the customer’s credit-worthiness. The allowance for doubtful accounts is reviewed on at least a quarterly basis. Past due balances over 90 days and over a specified amount are reviewed individually for collectibility. Account balances are charged against the allowance when the Company determines it is probable that the receivable will not be recovered. The Company does not have any off-balance sheet credit exposure related to its customers. Historically, the Company has not experienced significant bad debt losses.

The following is a summary of the activity of the Company’s allowance for doubtful accounts for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Balance at							Balance at
	Beginning							End of
	of Period		Additions		Deduction			Period
Allowance for Doubtful Accounts
June 29, 2019	$	7,663	$	3,793	$	(3,426	)	$	8,030
June 30, 2018	$	6,109	$	1,825	$	(1,778	)	$	6,156

Other Investments

During the six months ended June 29, 2019 and June 30, 2018, the Company made investments in unaffiliated companies of $5 million and $3 million, respectively.

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 June 29, 2019 and December 31, 2018. 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.

11

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 June 29, 2019 (in thousands):

			Quoted Prices
			in Active		Significant
			Markets		Other		Significant
	Total at		for Identical		Observable		Unobservable
	June 29,		Assets		Inputs		Inputs
	2019		(Level 1)		(Level 2)		(Level 3)
Assets:
U.S. Treasury securities	$	66,225	$	—	$	66,225	$	—
Corporate debt securities		94,335		—		94,335		—
Time deposits		57,964		—		57,964		—
Waters 401(k) Restoration Plan assets		33,278		33,278		—		—
Foreign currency exchange contracts		164		—		164		—
Interest rate cross-currency swap agreements		1,098		—		1,098		—
Total	$	253,064	$	33,278	$	219,786	$	—
Liabilities:
Contingent consideration	$	2,707	$	—	$	—	$	2,707
Foreign currency exchange contracts		292		—		292		—
Total	$	2,999	$	—	$	292	$	2,707

The following table represents the Company’s assets and liabilities measured at fair value on a recurring basis at December 31, 2018 (in thousands):

			Quoted Prices
			in Active		Significant
			Markets		Other		Significant
	Total at		for Identical		Observable		Unobservable
	December 31,		Assets		Inputs		Inputs
	2018		(Level 1)		(Level 2)		(Level 3)
Assets:
U.S. Treasury securities	$	164,315	$	—	$	164,315	$	—
Foreign government securities		3,463		—		3,463		—
Corporate debt securities		723,059		—		723,059		—
Time deposits		108,638		—		108,638		—
Waters 401(k) Restoration Plan assets		33,104		33,104		—		—
Foreign currency exchange contracts		503		—		503		—
Interest rate cross-currency swap agreements		1,093				1,093
Total	$	1,034,175	$	33,104	$	1,001,071	$	—
Liabilities:
Contingent consideration	$	2,476	$	—	$	—	$	2,476
Foreign currency exchange contracts		224		—		224		—
Total	$	2,700	$	—	$	224	$	2,476

12

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

Fair Value of 401(k) Restoration Plan Assets

The 401(k) Restoration Plan is a nonqualified defined contribution plan and the assets were held in registered mutual funds and have been classified as Level 1. The fair values of the assets in the plan are determined through market and observable sources from daily quoted prices on nationally recognized securities exchanges.

Fair Value of Cash Equivalents, Investments, Foreign Currency Exchange Contracts and Interest Rate Cross-Currency Swap Agreements

The fair values of the Company’s cash equivalents, investments 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.

Fair Value of Contingent Consideration

The fair value of the Company’s liability for contingent consideration relates to earnout payments in connection with 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 $3 million and $2 million at June 29, 2019 and December 31, 2018, respectively, based on the Company’s best estimate, as the earnout is based on future sales of certain products, some of which are currently in development, through 2034.

Fair Value of Other Financial Instruments

The Company’s 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 $510 million at both June 29, 2019 and December 31, 2018, 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 $512 million and $502 million at June 29, 2019 and December 31, 2018, 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 strategies in managing exposures to changes in foreign currency exchange rates are to (1) 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 and (2) mitigate foreign exchange risk exposure of international operations by hedging the variability in the movement of foreign currency exchange rates on a portion of its Euro-denominated net asset investments. The Company presents the derivative transactions in financing activities in the statement of cash flows.

13

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

Foreign Currency Exchange Contracts

The Company does not specifically enter into any derivatives that hedge foreign-currency-denominated operating 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, Mexican peso and Brazilian real.

Interest Rate Cross-Currency Swap Agreements

In 2018, the Company entered into three-year interest rate cross-currency swap derivative agreements with an aggregate notional value of $300 million to hedge the variability in the movement of foreign currency exchange rates on a portion of its Euro-denominated net asset investments. In 2019, the Company entered into additional interest rate cross-currency swap derivative agreements with an aggregate notional value of $110 million and contract terms between one and three years. Under hedge accounting, the change in fair value of the derivative that relates to changes in the foreign currency spot rate are recorded in the currency translation adjustment in other comprehensive income and remain in accumulated comprehensive income in stockholders’ equity until the sale or substantial liquidation of the foreign operation. The difference between the interest rate received and paid under the interest rate cross-currency swap derivative agreement is recorded in interest income in the statement of operations.

The Company’s foreign currency exchange contracts and interest rate cross-currency swap agreements included in the consolidated balance sheets are classified as follows (in thousands):

	June 29, 2019					December 31, 2018
	Notional Value		Fair Value			Notional Value		Fair Value
Foreign currency exchange contracts:
Other current assets	$	31,270	$	164		$	112,212	$	503
Other current liabilities	$	124,346	$	292		$	40,175	$	224
Interest rate cross-currency swap agreements:
Other assets	$	410,000	$	1,098		$	300,000	$	1,093
Accumulated other comprehensive income			$	(1,098	)			$	(1,093	)

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

	Financial	Three Months Ended						Six Months Ended
	Statement	June 29, 2019			June 30, 2018			June 29, 2019			June 30, 2018
	Classification
Foreign currency exchange contracts:
Realized gains (losses) on closed contracts	Cost of sales	$	136		$	(4,096	)	$	(407	)	$	(2,158	)
Unrealized losses on open contracts	Cost of sales		(3,044	)		(105	)		(2,518	)		(1,092	)
Cumulative net pre-tax losses	Cost of sales	$	(2,908	)	$	(4,201	)	$	(2,925	)	$	(3,250	)
Interest rate cross-currency swap agreements:
Interest earned	Interest income	$	2,923		$	—		$	5,150		$	—
Unrealized (losses) gains
on open contracts	Stockholders’ equity	$	(6,022	)	$	—		$	1,098		$	—

14

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

Stockholders’ Equity

In January 2019, the Company’s Board of Directors authorized the Company to repurchase up to $4 billion of its outstanding common stock over a two-year period. This new program replaced the remaining amounts available from the pre-existing program. During the six months ended June 29, 2019 and June 30, 2018, the Company repurchased 5.9 million and 2.7 million shares of the Company’s outstanding common stock at a cost of $1.3 billion and $546 million, respectively, under the January 2019 authorization and other previously announced programs. As of June 29, 2019, the Company had repurchased an aggregate of 5.1 million shares at a cost of $1.2 billion under the January 2019 repurchase program and had a total of $2.8 billion authorized for future repurchases. In addition, the Company repurchased $8 million of common stock related to the vesting of restricted stock units during both the six months ended June 29, 2019 and June 30, 2018, respectively. The Company believes that it has the financial flexibility to fund these share repurchases given current cash levels and debt borrowing capacity, as well as to invest in research, technology and business acquisitions.

As of June 29, 2019, the Company accrued $10 million as a result of treasury stock purchases that were settled in the third quarter of 2019.

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 three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Balance at							Balance at
	Beginning		Accruals for		Settlements			End of
	of Period		Warranties		Made			Period
Accrued warranty liability:
June 29, 2019	$	12,300	$	3,571	$	(4,288	)	$	11,583
June 30, 2018	$	13,026	$	3,588	$	(4,115	)	$	12,499

Restructuring and Other Charges

In January 2019, the Company made organizational changes to better align our resources with our growth and innovation strategies, resulting in a worldwide workforce reduction, impacting 1% of the Company’s employees. The Company recorded $1 million and $9 million of severance and related costs during the three and six months ended June 29, 2019, respectively.

2 Revenue Recognition

The Company recognizes revenue upon transfer of control of promised products and services to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products or services. The Company generally enters into contracts that include a combination of products and services. Revenue is allocated to distinct performance obligations and is recognized net of allowances for returns and discounts.

The Company recognizes revenue on product sales at the time control of the product transfers to the customer. In substantially all of the Company’s arrangements, title of the product transfers at shipping point and, as a result, the Company determined control transfers at the point of shipment. In more limited cases, there are destination-based shipping terms and, thus, control is deemed to transfer when the products arrive at the customer site. All incremental costs of obtaining a contract are expensed as and when incurred if the expected amortization period of the asset that would have been recognized is one year or less. Shipping and handling costs are included as a component of cost of

15

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

sales. In situations where the control of the goods transfers prior to the completion of the Company’s obligation to ship the products to its customers, the Company has elected the practical expedient to account for the shipping services as a fulfillment cost. Accordingly, such costs are recognized when control of the related goods is transferred to the customer. In more rare situations, the Company has revenue associated with products that contain specific customer acceptance criteria and the related revenue is not recognized before the customer acceptance criteria are satisfied. The Company elected to exclude from the measurement of the transaction price all taxes assessed by a governmental authority that are both imposed on and concurrent with specific revenue-producing transactions and collected by the Company from a customer.

Generally, the Company’s contracts for products include a performance obligation related to installation. The Company has determined that the installation represents a distinct performance obligation and revenue is recognized separately upon the completion of installation. The Company determines the amount of the transaction price to allocate to the installation service based on the standalone selling price of the product and the service, which requires judgment. The Company determines relative standalone selling price of installation based upon a number of factors, including hourly service billing rates and estimated installation hours. In developing these estimates, the Company considers past history, competition, billing rates of current services and other factors.

The Company has sales from standalone software, which is included in instrument systems revenue. These arrangements typically include software licenses and maintenance contracts, both of which the Company has determined are distinct performance obligations. The Company determines the amount of the transaction price to allocate to the license and maintenance contract based on the relative standalone selling price of each performance obligation. Software license revenue is recognized at the point in time when control has been transferred to the customer. The revenue allocated to the software maintenance contract is recognized on a straight-line basis over the maintenance period, which is the contractual term of the contract, as a time-based measure of progress best reflects the Company’s performance in satisfying this obligation. Unspecified rights to software upgrades are typically sold as part of the maintenance contract on a when-and-if-available basis.

Payment terms and conditions vary among the Company’s revenue streams, although terms generally include a requirement of payment within 30 to 60 days of product shipment. Prior to providing payment terms to customers, an evaluation of the customer’s credit risk is performed. Returns and customer credits are infrequent and insignificant and are recorded as a reduction to sales. Rights of return are not included in sales arrangements and, therefore, there is minimal variable consideration included in the transaction price of our products.

Service revenue includes (1) service and software maintenance contracts and (2) service calls (time and materials). Instrument service contracts and software maintenance contracts are typically annual contracts, which are billed at the beginning of the contract or maintenance period. The amount of the service and software maintenance contract is recognized on a straight-line basis to revenue over the maintenance service period, which is the contractual term of the contract, as a time-based measure of progress best reflects the Company’s performance in satisfying this obligation. There are no deferred costs associated with the service contract, as the cost of the service is recorded when the service is performed. Service calls are recognized to revenue at the time a service is performed.

The Company’s deferred revenue liabilities on the consolidated balance sheets consists of the obligation on instrument service contracts and customer payments received in advance, prior to transfer of control of the instrument. The Company records deferred revenue primarily related to its service contracts, where consideration is billable at the beginning of the service period.

The following is a summary of the activity of the Company’s deferred revenue and customer advances for the six months ended June 29, 2019 and June 30, 2018 (in thousands):

	June 29, 2019			June 30, 2018
Balance at the beginning of the period	$	204,257		$	192,590
Recognition of revenue included in balance at beginning of the period		(172,949	)		(138,227	)
Revenue deferred during the period, net of revenue recognized		229,162			186,392
Balance at the end of the period	$	260,470		$	240,755

The Company classified $40 million and $39 million of deferred revenue and customer advances in other long-term liabilities at June 29, 2019 and December 31, 2018, respectively.

16

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

The amount of deferred revenue and customer advances equals the transaction price allocated to unfulfilled performance obligations for the period presented. Such amounts are expected to be recognized in the future as follows (in thousands):

	June 29, 2019
Deferred revenue and customer advances expected to be recognized in:
One year or less	$	220,711
13-24 months		21,962
25 months and beyond		17,797
Total	$	260,470

3 Marketable Securities

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

	June 29, 2019
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gain		Loss			Value
U.S. Treasury securities	$	66,221	$	4	$	—		$	66,225
Corporate debt securities		94,331		37		(33	)		94,335
Time deposits		57,964		—		—			57,964
Total	$	218,516	$	41	$	(33	)	$	218,524
Amounts included in:
Cash equivalents	$	130,744	$	5	$	—		$	130,749
Investments		87,772		36		(33	)		87,775
Total	$	218,516	$	41	$	(33	)	$	218,524
	December 31, 2018
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gain		Loss			Value
U.S. Treasury securities	$	164,619	$	16	$	(320	)	$	164,315
Foreign government securities		3,486		1		(24	)		3,463
Corporate debt securities		725,778		41		(2,760	)		723,059
Time deposits		108,638		—		—			108,638
Total	$	1,002,521	$	58	$	(3,104	)	$	999,475
Amounts included in:
Cash equivalents	$	60,532	$	—	$	(1	)	$	60,531
Investments		941,989		58		(3,103	)		938,944
Total	$	1,002,521	$	58	$	(3,104	)	$	999,475

17

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

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

	June 29, 2019		December 31, 2018
Due in one year or less	$	211,124	$	797,649
Due after one year through three years		7,400		201,826
Total	$	218,524	$	999,475

4 Inventories

Inventories are classified as follows (in thousands):

	June 29, 2019		December 31, 2018
Raw materials	$	120,601	$	111,641
Work in progress		17,283		15,552
Finished goods		213,668		164,376
Total inventories	$	351,552	$	291,569

5 Goodwill and Other Intangibles

The carrying amount of goodwill was $356 million at both June 29, 2019 and December 31, 2018.

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

	June 29, 2019						December 31, 2018
					Weighted-						Weighted-
	Gross				Average		Gross				Average
	Carrying		Accumulated		Amortization		Carrying		Accumulated		Amortization
	Amount		Amortization		Period		Amount		Amortization		Period
Capitalized software	$	471,701	$	323,030		5 years	$	454,307	$	307,634		5 years
Purchased intangibles		201,442		148,603		11 years		201,566		144,184		11 years
Trademarks and IPR&D		13,691		—		—		13,677		—		—
Licenses		5,581		5,118		6 years		5,568		4,875		6 years
Patents and other intangibles		79,483		51,053		8 years		77,753		49,276		8 years
Total	$	771,898	$	527,804		7 years	$	752,871	$	505,969		7 years

The gross carrying value of both intangible assets and accumulated amortization for intangible assets decreased by $2 million in the six months ended June 29, 2019 due to the effects of foreign currency translation. Amortization expense for intangible assets was $12 million for both the three months ended June 29, 2019 and June 30, 2018. Amortization expense for intangible assets was $25 million for both the six months ended June 29, 2019 and June 30, 2018. Amortization expense for intangible assets is estimated to be $50 million per year for each of the next five years.

18

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

6 Debt

In November 2017, the Company entered into a credit agreement (the “2017 Credit Agreement”) that provides for a $1.5 billion revolving facility and a $300 million term loan. The revolving facility and term loan both mature on November 30, 2022 and require no scheduled prepayments before that date.

The interest rates applicable to the 2017 Credit Agreement are, at the Company’s option, equal to either the alternate base rate (which is a rate per annum equal to the greatest of (1) the prime rate in effect on such day, (2) the Federal Reserve Bank of New York Rate on such day plus 1/2 of 1% per annum and (3) 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 or EURIBO rate for Euro-denominated loans, in each case, plus an interest rate margin based upon the Company’s leverage ratio, which can range between 0 and 12.5 basis points for alternate base rate loans and between 80 and 112.5 basis points for LIBO rate or EURIBO rate loans. The facility fee on the 2017 Credit Agreement ranges between 7.5 and 25 basis points per annum, based on the leverage ratio, of the amount of the revolving facility commitments and the outstanding term loan. The 2017 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 2017 Credit Agreement includes negative covenants, affirmative covenants, representations and warranties and events of default that are customary for investment grade credit facilities.

As of both June 29, 2019 and December 31, 2018, the Company had a total of $560 million of outstanding senior unsecured notes. 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.

In February 2019, certain defined terms related to the subsidiary guarantors were amended in the 2017 Credit Agreement and senior unsecured note agreements. In addition, the Company amended the senior unsecured note agreements to allow the Company to elect an increase in the permitted leverage ratio from 3.50:1 to 4.0:1, for a period of three consecutive quarters, for a material acquisition of $400 million or more. During the period of time where the leverage ratio exceeds 3.50:1, the interest payable on the senior unsecured notes shall increase by 0.50%. The debt covenants in the senior unsecured note agreements were also modified to address the change in accounting guidance for leases.

In 2018, the Company entered into three-year interest rate cross-currency swap derivative agreements with an aggregate notional value of $300 million to hedge the variability in the movement of foreign currency exchange rates on a portion of its Euro-denominated net asset investments. In 2019, the Company entered into additional interest rate cross-currency swap derivative agreements with an aggregate notional value of $110  million and contract terms between one and three years. See Note 1, “Basis of Presentation and Summary of Significant Accounting Policies.”

19

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

The Company had the following outstanding debt at June 29, 2019 and December 31, 2018 (in thousands):

	June 29, 2019			December 31, 2018
Foreign subsidiary lines of credit	$	295		$	178
Senior unsecured notes - Series B - 5.00%, due February 2020		100,000			—
Total notes payable and debt, current		100,295			178
Senior unsecured notes - Series B - 5.00%, due February 2020		—			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			50,000
Senior unsecured notes - Series K - 3.44%, due May 2026		160,000			160,000
Credit agreement		590,000			590,000
Unamortized debt issuance costs		(1,606	)		(1,828	)
Total long-term debt		1,048,394			1,148,172
Total debt	$	1,148,689		$	1,148,350

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

As of both June 29, 2019 and December 31, 2018, the Company had a total amount available to borrow under the 2017 Credit Agreement of $1,208 million after outstanding letters of credit. The weighted-average interest rates applicable to the senior unsecured notes and credit agreement borrowings collectively were 3.74% and 3.83% at June 29, 2019 and December 31, 2018, respectively. As of June 29, 2019, the Company was in compliance with all debt covenants.

The Company and its foreign subsidiaries also had available short-term lines of credit totaling $106 million and $90 million at June 29, 2019 and December 31, 2018, respectively, for the purpose of short-term borrowing and issuance of commercial guarantees. The weighted-average interest rates applicable to these short-term borrowings were 1.48% and 1.88% for June 29, 2019 and December 31, 2018, 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 statutory tax rates are 21%, 12.5%, 19% and 17%, respectively, as of June 29, 2019. The Company has a contractual tax rate of 0% on qualifying activities in Singapore through March 2021, based upon the achievement of certain contractual milestones, which the Company expects to meet. The effect of applying the contractual tax rate rather than the statutory tax rate to income from qualifying activities in Singapore increased the Company’s net income for the six months ended June 29, 2019 and June 30, 2018 by $9 million and $13 million, respectively, and increased the Company’s net income per diluted share by $0.13 and $0.17, respectively.

The Company’s effective tax rate for the three months ended June 29, 2019 and June 30, 2018 was 15.9% and 10.8%, respectively. The increase in the effective income tax rate can be attributed to a $9 million reduction in the three months ended June 30, 2018 income tax expense related to the change in foreign currency exchange rates on the earnings taxed in December 2017 under the toll charge of the 2017 Tax Act and an additional $1 million tax benefit related to stock-based compensation. This reduction in income tax expense decreased the effective tax rate by 5.6 percentage points for the three months ended June 30, 2018. The remaining differences between the effective tax rates can primarily be attributed to differences in the proportionate amounts of pre-tax income recognized in jurisdictions with different effective tax rates.

The Company’s effective tax rate for the six months ended June 29, 2019 and June 30, 2018 was 12.4% and 15.1%, respectively. The effective tax rate for the six months ended June 29, 2019 includes a $3 million income tax benefit related to the finalization of certain regulations relating to the Tax Cuts and Jobs Act (the “2017 Tax Act”). This

20

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

income tax benefit decreased the effective tax rate by 1.0 percentage points for the six months ended June 29, 2019. The effective tax rate for the six months ended June 30, 2018 includes $4 million of additional income tax expense related to the change in foreign currency exchange rates on the earnings taxed in December 2017 under the toll charge of the 2017 Tax Act. This additional income tax expense increased the effective tax rate by 1.3 percentage points for the six months ended June 30, 2018. The remaining differences between the effective tax rates can primarily be attributed to differences in the proportionate amounts of pre-tax income recognized in jurisdictions with different effective tax rates.

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

The following is a summary of the activity of the Company’s uncertain tax positions for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	June 29, 2019			June 30, 2018
Balance at the beginning of the period	$	26,108		$	5,843
Net reductions for lapse of statutes taken during the period		(105	)		(191	)
Net additions for tax positions taken during the current period		801			408
Balance at the end of the period	$	26,804		$	6,060

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, 2013. However, carryforward tax attributes that were generated in years beginning on or before January 1, 2014 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 June 29, 2019, the Company expects to record additional reductions in the measurement of its unrecognized tax benefits and related net interest and penalties of less than $1 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 Leases

The Company adopted new accounting guidance regarding the accounting for leases as of January 1, 2019 using a modified retrospective transition approach that was applied to leases existing as of, or entered into after, January 1, 2019. The Company elected the package of transition provisions available for expired or existing contracts, which allowed the Company to carryforward historical assessments of (1) whether contracts are or contain leases, (2) lease classification and (3) initial direct costs. Upon adoption, the Company recorded a right-of-use lease asset and lease liabilities in the amount $100 million as of January 1, 2019. The adoption of this standard did not have a material impact on the Company’s results of operations, cash flows and retained earnings.

Prior to the adoption of the new lease accounting standard, undiscounted future minimum rents payable as of December 31, 2018 under non-cancelable leases with initial terms exceeding one year were as follows (in thousands):

2019	$	28,417
2020		23,424
2021		16,032
2022		11,816
2023 and thereafter		23,269
Total future minimum lease payments	$	102,958

21

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

The Company’s operating leases consist of property leases for sales, demonstration, laboratory, warehouse and office spaces, automotive leases for sales and service personnel and equipment leases, primarily used in our manufacturing and distribution operations. The lease policies described below were effective as of January 1, 2019. For leases with terms greater than 12 months, the Company recorded the related right-of-use asset and lease liability obligation at the present value of lease payments over the term of the leases. Some of the Company’s leases include rental escalation clauses, renewal options and/or termination options that are factored into our determination of lease payments. A certain number of these leases contain rent escalation clauses, either fixed or adjusted periodically for inflation of market rates, that are factored into the Company’s determination of lease payments. The Company also has variable lease payments that do not depend on a rate or index, primarily for items such as common area maintenance and real estate taxes, which are recorded as variable costs when incurred.

In addition, the Company’s lease agreements that contain lease and non-lease components are generally accounted for as a single lease component. The Company has elected not to apply the recognition requirements of the new accounting guidance to leases with terms less than 12 months. For these leases, the Company recognizes lease payments in net income on a straight-line basis over the term of the lease. As of June 29, 2019 and December 31, 2018, the Company does not have leases that are classified as finance leases.

When available, the Company uses the rate implicit in the lease to discount lease payments to determine the present value of the lease liabilities; however, most of the leases do not provide a readily determinable implicit rate and, as required by the accounting guidance, the Company estimated its incremental secured borrowing rate to discount the lease payments based on information available at lease commencement (or, for the leases in existence on the adoption date, the January 1, 2019 information). The Company’s incremental borrowing rate reflects the estimated rate of interest that the Company would pay to borrow on a collateralized basis over a similar term to the lease payments in a similar economic environment.

As of June 29, 2019, the Company has lease agreements that expire at various dates through 2033, with a weighted-average remaining lease term of 4.9 years. Rental expense was $9 million for the three months ended June 29, 2019 under the new lease accounting standard and $8 million for the three months ended June 30, 2018 under the previous lease accounting standard. Rental expense was $18 million for the six months ended June 29, 2019 under the new lease accounting standard and $15 million for the six months ended June 30, 2018 under the previous lease accounting standard. As of June 29, 2019, the weighted-average discount rate used to determine the present value of lease liabilities was 3.94%. Cash paid for amounts included in the measurement of lease liabilities in operating activities in the statement of cash flows was $18 million during the six months ended June 29, 2019.

The Company’s right-of-use lease assets and lease liabilities included in the consolidated balance sheets are classified as follows (in thousands):

	Financial Statement Classification	June 29, 2019
Assets:
Property operating lease assets	Operating lease assets	$	61,646
Automobile operating lease assets	Operating lease assets		27,217
Equipment operating lease assets	Operating lease assets		2,197
Total lease assets		$	91,060
Liabilities:
Current operating lease liabilities	Current operating lease liabilities	$	25,106
Long-term operating lease liabilities	Long-term operating lease liabilities		66,713
Total lease liabilities		$	91,819

22

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

Undiscounted future minimum rents payable as of June 29, 2019 under non-cancelable leases with initial terms exceeding one year reconcile to lease liabilities included in the consolidated balance sheet as follows (in thousands):

2019 (remaining 6 months)	$	14,291
2020		24,596
2021		16,296
2022		10,462
2023		5,875
2024 and thereafter		31,161
Total future minimum lease payments		102,681
Less: amount of lease payments representing interest		(10,862	)
Present value of future minimum lease payments		91,819
Less: current operating lease liabilities		(25,106	)
Long-term operating lease liabilities	$	66,713

9 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 and performance 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. Forfeitures are 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 ended June 29, 2019 and June 30, 2018 include the following stock-based compensation expense related to stock option awards, restricted stock awards, restricted stock unit awards, performance stock unit awards and the employee stock purchase plan (in thousands):

	Three Months Ended				Six Months Ended
	June 29, 2019		June 30, 2018		June 29, 2019		June 30, 2018
Cost of sales	$	567	$	603	$	1,142	$	1,208
Selling and administrative expenses		7,402		7,639		15,527		16,123
Research and development expenses		1,345		837		2,586		1,640
Total stock-based compensation	$	9,314	$	9,079	$	19,255	$	18,971

23

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

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 ended June 29, 2019 and June 30, 2018 are as follows:

	Six Months Ended
Options Issued and Significant Assumptions Used to Estimate Option Fair Values	June 29, 2019			June 30, 2018
Options issued in thousands		139			140
Risk-free interest rate		2.5	%		2.7	%
Expected life in years		5			6
Expected volatility		24.3	%		23.2	%
Expected dividends		—			—

	Six Months Ended
Weighted-Average Exercise Price and Fair Value of Options on the Date of Grant	June 29, 2019		June 30, 2018
Exercise price	$	231.30	$	205.97
Fair value	$	61.85	$	58.26

The following table summarizes stock option activity for the plans for the six months ended June 29, 2019 (in thousands, except per share data):

	Number of Shares			Exercise Price per Share					Weighted-Average Exercise Price per Share
Outstanding at December 31, 2018		1,790		$	38.09	to	$	208.47	$	142.47
Granted		139		$	183.41	to	$	238.52	$	231.30
Exercised		(239	)	$	38.09	to	$	208.47	$	110.07
Canceled		(56	)	$	113.36	to	$	194.26	$	153.14
Outstanding at June 29, 2019		1,634		$	61.63	to	$	238.52	$	154.40

Restricted Stock

During the six months ended June 29, 2019, the Company granted five thousand shares of restricted stock. The weighted-average fair value per share of these awards on the grant date was $183.41.

Restricted Stock Units

The following table summarizes the unvested restricted stock unit award activity for the six months ended June 29, 2019 (in thousands, except per share data):

	Shares			Weighted-Average Fair Value per Share
Unvested at December 31, 2018		304		$	153.31
Granted		83		$	236.28
Vested		(103	)	$	138.61
Forfeited		(15	)	$	167.10
Unvested at June 29, 2019		269		$	183.77

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

24

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

Performance Stock Units

The Company’s performance stock units are equity compensation awards with a market vesting condition based on the Company’s Total Shareholder Return (“TSR”) relative to the TSR of the components of the S&P Health Care Index. TSR is the change in value of a stock price over time, including the reinvestment of dividends. The vesting schedule ranges from 0% to 200% of the target shares awarded.

In determining the fair value of the performance stock units, the Company makes a variety of assumptions and estimates, including volatility measures, expected yields and expected terms. The fair value of each performance stock unit grant was estimated on the date of grant using the Monte Carlo simulation 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 the performance period of the underlying performance stock units. 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 Monte Carlo simulation model. The correlation coefficient is used to model the way in which each company in the S&P Health Care Index tends to move in relation to each other during the performance period. The relevant data used to determine the value of the performance stock units granted during the six months ended June 29, 2019 and June 30, 2018 are as follows: 

	Six Months Ended
Performance Stock Units Issued and Significant Assumptions Used to Estimate Fair Values	June 29, 2019			June 30, 2018
Performance stock units issued (in thousands)		13			16
Risk-free interest rate		2.4	%		2.0	%
Expected life in years		2.8			2.8
Expected volatility		23.5	%		23.4	%
Average volatility of peer companies		26.2	%		25.8	%
Correlation coefficient		34.2	%		37.2	%
Expected dividends		—			—

The following table summarizes the unvested performance stock unit award activity for the six months ended June 29, 2019 (in thousands, except per share data):

	Shares			Weighted-Average Fair Value per Share
Unvested at December 31, 2018		100		$	212.34
Granted		13		$	372.68
Forfeited		(6	)	$	208.58
Unvested at June 29, 2019		107		$	232.79

25

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

10 Earnings Per Share

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

	Three Months Ended June 29, 2019
	Net Income		Weighted- Average Shares		Per Share
	(Numerator)		(Denominator)		Amount
Net income per basic common share	$	144,410		68,989	$	2.09
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		505		(0.01	)
Net income per diluted common share	$	144,410		69,494	$	2.08
	Three Months Ended June 30, 2018
	Net Income		Weighted- Average Shares		Per Share
	(Numerator)		(Denominator)		Amount
Net income per basic common share	$	155,677		77,833	$	2.00
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		605		(0.02	)
Net income per diluted common share	$	155,677		78,438	$	1.98
	Six Months Ended June 29, 2019
	Net Income		Weighted- Average Shares		Per Share
	(Numerator)		(Denominator)		Amount
Net income per basic common share	$	253,396		70,331	$	3.60
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		573		(0.03	)
Net income per diluted common share	$	253,396		70,904	$	3.57

	Six Months Ended June 30, 2018
	Net Income		Weighted- Average Shares		Per Share
	(Numerator)		(Denominator)		Amount
Net income per basic common share	$	267,628		78,330	$	3.42
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		711		(0.03	)
Net income per diluted common share	$	267,628		79,041	$	3.39

For both the three and six months ended June 29, 2019 and the three and six months ended June 30, 2018, the Company had 0.1 million stock options that were antidilutive due to having higher exercise prices than the Company’s average stock price during the period. These securities were not included in the computation of diluted EPS. The effect of dilutive securities was calculated using the treasury stock method. 

26

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

11 Accumulated Other Comprehensive Income

The components of accumulated other comprehensive income (loss) 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, 2018	$	(105,697	)	$	(9,869	)	$	(2,405	)	$	(117,971	)
Other comprehensive income, net of tax		491			34			2,350			2,875
Balance at June 29, 2019	$	(105,206	)	$	(9,835	)	$	(55	)	$	(115,096	)

12 Retirement Plans

The Company sponsors various retirement plans. The components of net periodic benefit cost other than the service cost component are included in other expense in the consolidated statements of operations. The summary of the components of net periodic pension costs for the plans for the three and six months ended June 29, 2019 and June 30, 2018 is as follows (in thousands):

	Three Months Ended
	June 29, 2019								June 30, 2018
	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	$	—	$	108		$	1,075		$	142		$	151		$	1,339
Interest cost		10		230			430			1,627			162			416
Expected return on plan assets		—		(177	)		(538	)		(630	)		(175	)		(481	)
Net amortization:
Prior service credit		—		(5	)		(37	)		—			(2	)		(32	)
Net actuarial loss		—		—			132			772			—			171
Net periodic pension cost	$	10	$	156		$	1,062		$	1,911		$	136		$	1,413

	Six Months Ended
	June 29, 2019								June 30, 2018
	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	$	—	$	250		$	2,157		$	284		$	283		$	2,713
Interest cost		23		389			864			3,246			318			844
Expected return on plan assets		—		(354	)		(1,081	)		(3,415	)		(353	)		(974	)
Net amortization:
Prior service credit		—		(10	)		(74	)		—			(10	)		(63	)
Net actuarial loss		—		—			267			1,541			—			348
Net periodic pension cost	$	23	$	275		$	2,133		$	1,656		$	238		$	2,868

In 2018, the Company terminated and settled its frozen U.S. defined benefit pension plan, the Waters Retirement Plan, by making lump-sum cash payments and purchasing annuity contracts for participants to permanently extinguish the pension plan’s obligations. The Company also anticipates that it will settle the Waters Retirement Restoration Plan during 2019, and the Company may incur pension accounting charges in connection with the termination of this plan.

27

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

During fiscal year 2019, the Company expects to contribute a total of approximately $3 million to $6 million to the Company’s defined benefit plans.

13 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: WatersTM and TATM.

The Waters operating segment is primarily in the business of designing, manufacturing, selling and servicing LC and MS instruments, columns and other precision 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, selling 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.

28

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

Net sales for the Company’s products and services are as follows for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Three Months Ended				Six Months Ended
	June 29, 2019		June 30, 2018		June 29, 2019		June 30, 2018
Product net sales:
Waters instrument systems	$	238,777	$	239,928	$	423,389	$	438,031
Chemistry consumables		100,292		99,129		199,545		197,839
TA instrument systems		48,196		49,812		84,834		92,116
Total product sales		387,265		388,869		707,768		727,986
Service net sales:
Waters service		192,048		188,248		368,097		362,581
TA service		19,849		19,102		37,159		36,322
Total service sales		211,897		207,350		405,256		398,903
Total net sales	$	599,162	$	596,219	$	1,113,024	$	1,126,889

Net sales are attributable to geographic areas based on the region of destination. Geographic sales information is presented below for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Three Months Ended				Six Months Ended
	June 29, 2019		June 30, 2018		June 29, 2019		June 30, 2018
Net Sales:
Asia:
China	$	112,796	$	109,709	$	202,887	$	203,537
Japan		45,958		43,183		89,462		85,948
Asia Other		80,081		84,013		146,998		147,700
Total Asia		238,835		236,905		439,347		437,185
Americas:
United States		173,940		161,485		323,097		308,306
Americas Other		32,835		36,641		65,546		71,530
Total Americas		206,775		198,126		388,643		379,836
Europe		153,552		161,188		285,034		309,868
Total net sales	$	599,162	$	596,219	$	1,113,024	$	1,126,889

Net sales by customer class are as follows for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Three Months Ended				Six Months Ended
	June 29, 2019		June 30, 2018		June 29, 2019		June 30, 2018
Pharmaceutical	$	350,145	$	338,354	$	644,657	$	643,682
Industrial		176,109		183,664		331,327		345,994
Academic and governmental		72,908		74,201		137,040		137,213
Total net sales	$	599,162	$	596,219	$	1,113,024	$	1,126,889

29

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

Net sales for the Company recognized at a point in time versus over time are as follows for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Three Months Ended				Six Months Ended
	June 29, 2019		June 30, 2018		June 29, 2019		June 30, 2018
Net sales recognized at a point in time:
Instrument systems	$	286,973	$	289,740	$	508,223	$	530,147
Chemistry consumables		100,292		99,129		199,545		197,839
Service sales recognized at a point in time (time & materials)		84,807		80,397		157,566		152,915
Total net sales recognized at a point in time		472,072		469,266		865,334		880,901
Net sales recognized over time:
Service and software maintenance sales recognized over time (contracts)		127,090		126,953		247,690		245,988
Total net sales	$	599,162	$	596,219	$	1,113,024	$	1,126,889

14 Recent Accounting Standard Changes and Developments

Recently Adopted Accounting Standards

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 requires lessees to present the assets and liabilities that arise from leases on their balance sheets. This guidance was effective for annual and interim reporting periods beginning after December 15, 2018. The Company has adopted this standard using a modified retrospective transition approach to be applied to leases existing as of, or entered into after, January 1, 2019. The adoption of this standard did have a material effect on the Company’s balance sheet by recording a right-of-use lease asset and lease liabilities in the amount $100 million as of January 1, 2019; however, it did not have a material impact on the Company’s results of operations, cash flows and retained earnings.

In March 2017, accounting guidance was issued to amend the amortization period for certain purchased callable debt securities held at a premium. Specifically, the amortization period for certain callable debt securities was shortened to end at the earliest call date. This guidance was effective for annual and interim periods beginning after December 15, 2018. The Company adopted this standard as of January 1, 2019 and the adoption of this standard did not have a material impact on the Company’s financial position, results of operations and cash flows.

In February 2018, accounting guidance was issued to address the impact of the 2017 Tax Act on items recorded in accumulated other comprehensive income. Current accounting guidance requires deferred tax liabilities and assets to be adjusted for the effect of a change in tax laws or rates with the effect recorded in income from continuing operations, even if the related tax effects were originally recognized in other comprehensive income, the new guidance allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the 2017 Tax Act. This guidance was effective for annual and interim periods beginning after December 15, 2018. The Company adopted this standard as of January 1, 2019 and the adoption of this standard did not have a material impact on the Company’s financial position, results of operations and cash flows.

In August 2018, accounting guidance was issued to address the capitalization of implementation costs associated with hosting arrangements that meet the definition of a service contract. The new guidance clarified that the internal-use software capitalization guidance should be used to determine when implementation costs are capitalizable. This guidance is effective for annual and interim periods beginning after December 15, 2019 and early adoption is permitted. The Company elected to prospectively adopt this guidance as of January 1, 2019 and the adoption of this standard did not have a material impact on the Company’s financial position, results of operations and cash flows.

30

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

Recently Issued Accounting Standards

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 has occurred. 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 currently does not expect that the adoption of this standard will have a material effect on the Company’s financial position, results of operations and cash flows.

In January 2017, accounting guidance was issued that simplifies the accounting for goodwill impairment. The guidance eliminates step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. This guidance is effective for annual and interim periods beginning after December 15, 2019 and early adoption is permitted. The Company currently does not expect that the adoption of this standard will have a material effect on the Company’s financial position, results of operations and cash flows.

In August 2018, accounting guidance was issued that modifies the disclosure requirements of fair value measurements. The amendments remove disclosures that are no longer considered cost beneficial, clarify the specific requirements of disclosure and add disclosure requirements identified as relevant. This guidance is effective for annual and interim periods beginning after December 15, 2019 and early adoption is permitted. The Company does not expect that the adoption of this standard will have a material impact on the Company’s financial position, results of operations and cash flows.

In August 2018, accounting guidance was issued that modifies the disclosure requirements of retirement benefit plans. The amendments remove disclosures that are no longer considered cost beneficial, clarify the specific requirements of disclosure and add disclosure requirement identified as relevant. This guidance is effective for annual and interim periods beginning after December 15, 2020 and early adoption is permitted. The Company does not expect that the adoption of this standard will have a material impact on the Company’s financial position, results of operations and cash flows.

31

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

Business and Financial Overview

The Company has two operating segments: WatersTM and TATM. Waters products and services primarily consist of high performance liquid chromatography (“HPLC”), ultra performance liquid chromatography (“UPLCTM” and together with HPLC, referred to as “LC”), mass spectrometry (“MS”) and precision 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 six months ended June 29, 2019 and June 30, 2018 (dollars in thousands, except per share data):

	Three Months Ended									Six Months Ended
	June 29, 2019			June 30, 2018			% change			June 29, 2019			June 30, 2018			% change
Revenues:
Product sales	$	387,265		$	388,869			—		$	707,768		$	727,986			(3	%)
Service sales		211,897			207,350			2	%		405,256			398,903			2	%
Total net sales		599,162			596,219			—			1,113,024			1,126,889			(1	%)
Costs and operating expenses:
Cost of sales		249,546			243,135			3	%		470,577			464,556			1	%
Selling and administrative expenses		133,208			136,645			(3	%)		267,547			267,052			—
Research and development expenses		36,490			35,644			2	%		71,550			70,124			2	%
Purchased intangibles amortization		2,264			1,602			41	%		4,545			3,261			39	%
Litigation settlement		—			—			—			—			(1,672	)		100	%
Operating income		177,654			179,193			(1	%)		298,805			323,568			(8	%)
Operating income as a % of sales		29.7	%		30.1	%					26.8	%		28.7	%
Other expense		(342	)		(1,828	)		(81	%)		(867	)		(1,482	)		(41	%)
Interest expense, net		(5,577	)		(2,804	)		99	%		(8,825	)		(6,976	)		27	%
Income before income taxes		171,735			174,561			(2	%)		289,113			315,110			(8	%)
Provision for income taxes		27,325			18,884			45	%		35,717			47,482			(25	%)
Net income	$	144,410		$	155,677			(7	%)	$	253,396		$	267,628			(5	%)
Net income per diluted common share	$	2.08		$	1.98			5	%	$	3.57		$	3.39			5	%

The Company’s sales were flat for the second quarter of 2019 as compared to the second quarter of 2018 and decreased 1% for the first half of 2019 as compared to the first half of 2018. Foreign currency translation decreased sales growth by 2% for both the second quarter and first half of 2019. Recent acquisitions did not have an impact on sales growth in either the second quarter or first half of 2019. Unless otherwise noted, sales growth or decline percentages are presented as compared with the same period in the prior year.

Instrument system sales decreased 1% and 4% for the second quarter and first half of 2019, respectively, as a result of weaker demand for our products by our customers due to uncertainty caused by macroeconomic impacts relating to Brexit and governmental policy changes in certain regions. Foreign currency translation decreased instrument system sales by 1% and 2% for the second quarter and first half of 2019, respectively. Recurring revenues (combined sales of precision chemistry consumables and services) increased 2% and 1% for the second quarter and first half of 2019, respectively, as a result of a larger installed base of customers and higher billing demand for service sales. In the second quarter and first half of 2019, recurring revenues were negatively impacted by foreign currency translation which lowered sales by 2% and 3%, respectively, as well as one less calendar day as compared to the first half of 2018.

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In the second quarter of 2019, the Company’s sales increased 4% in the Americas and 1% in Asia, while sales decreased 5% in Europe. For the first half of 2019, the Company’s sales increased 2% in the Americas, were flat in Asia and decreased 8% in Europe. Sales growth in the Americas was driven by increases in the U.S. of 8% and 5% for the second quarter and first half of 2019, respectively, which were partially offset by declines in Latin America of 14% and 13%, respectively, due to lower levels of customer spending. Sales growth in Asia was driven by sales growth in Japan of 6% and 4% for the second quarter and first half of 2019, respectively, which were offset by declines in India in both the second quarter and first half of 2019, primarily caused by the effect of foreign currency translation. China sales increased 3% in the second quarter of 2019, but were flat for the first half due to economic uncertainty in the first quarter of 2019 stemming from governmental policy in our food and pharmaceutical markets. Sales in Europe were impacted by weak demand in Eastern Europe and the effect of foreign currency translation, which reduced the sales growth rate by 3% and 5% for the second quarter and first half of 2019, respectively.

Sales to pharmaceutical customers increased 3% for the second quarter of 2019 and were flat for the first half of 2019, with the effect of foreign currency translation decreasing sales growth by 2% and 3%, respectively. Sales to pharmaceutical customers were driven by an increasing need for global access to prescription drugs and testing of newer and more complex biologic drugs. Combined sales to industrial customers, which include material characterization, food, environmental and fine chemical markets, declined 4% for both the second quarter and first half of 2019, with the effect of foreign currency translation decreasing sales growth by 1% for both the second quarter and first half of 2019. Sales to our industrial customers have been negatively impacted by lower customer demand for our LC, MS and TA instrument systems. Combined sales to academic and governmental customers decreased 2% in the second quarter of 2019 and were flat for the first half of 2019, primarily due to the timing of the release of funds by governments and the negative effect of foreign currency translation, which decreased sales growth by 2% for both the second quarter and first half of 2019.

Operating income decreased 1% and 8% for the second quarter and first half of 2019, respectively. These decreases were primarily a result of the unfavorable effect of foreign currency translation, as well as $1 million and $9 million of severance-related costs in connection with a reduction in workforce in the second quarter and first half of 2019, respectively. In addition, operating income in the first half of 2018 included the benefit of a $2 million litigation settlement.

The Company generated $303 million and $277 million of net cash flows from operations in the first half of 2019 and 2018, respectively. This increase in operating cash flow was primarily a result of a $15 million litigation settlement payment in 2018 that did not recur.

Cash flows used in investing activities included capital expenditures related to property, plant, equipment and software capitalization of $65 million and $37 million in the first half of 2019 and 2018, respectively. The first half of 2019 includes $33 million of capital expenditures related to the expansion of the Company’s precision chemistry consumable operations in the U.S. The Company has incurred $48 million on this facility through the end of the first half of 2019 and anticipates spending a total of $215 million to build and equip this new state-of-the-art manufacturing facility. During the first half of 2019 and 2018, the Company made $5 million and $3 million of investments in unaffiliated companies, respectively.

In January 2019, the Company’s Board of Directors authorized the Company to repurchase up to $4 billion of its outstanding common stock over a two-year period. During the first six months of 2019 and 2018, the Company repurchased $1.3 billion and $546 million of the Company’s outstanding common stock, respectively, under authorized share repurchase programs. The Company believes that it has the financial flexibility to fund these share repurchases given current cash and investment 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.

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Results of Operations

Sales by Geography

Geographic sales information is presented below for the three and six months ended June 29, 2019 and June 30, 2018 (dollars in thousands):

	Three Months Ended							Six Months Ended
	June 29, 2019		June 30, 2018		% change			June 29, 2019		June 30, 2018		% change
Net Sales:
Asia:
China	$	112,796	$	109,709		3	%	$	202,887	$	203,537		—
Japan		45,958		43,183		6	%		89,462		85,948		4	%
Asia Other		80,081		84,013		(5	%)		146,998		147,700		—
Total Asia		238,835		236,905		1	%		439,347		437,185		—
Americas:
United States		173,940		161,485		8	%		323,097		308,306		5	%
Americas Other		32,835		36,641		(10	%)		65,546		71,530		(8	%)
Total Americas		206,775		198,126		4	%		388,643		379,836		2	%
Europe		153,552		161,188		(5	%)		285,034		309,868		(8	%)
Total net sales	$	599,162	$	596,219		—		$	1,113,024	$	1,126,889		(1	%)

In the second quarter and first half of 2019, sales in China were negatively impacted by economic uncertainty caused by certain regulatory changes in our food and pharmaceutical markets. The increase in sales in Japan was driven by double-digit growth in TA products and services, as well as strong performance by Waters products and services. Sales in Asia Other were driven by LC-MS instrument systems, primarily to academic and governmental customers. Sales growth in the U.S. was broad-based across all product and customer classes, while sales declines in the rest of the Americas and Europe were broad-based across all product and customer classes due to macroeconomic conditions. Sales in Europe were also negatively impacted by the effect of foreign currency translation, which decreased sales 3% and 5% for the second quarter and first half of 2019, respectively.

Net sales by customer class are presented below for the three and six months ended June 29, 2019 and June 30, 2018 (dollars in thousands):

	Three Months Ended							Six Months Ended
	June 29, 2019		June 30, 2018		% change			June 29, 2019		June 30, 2018		% change
Pharmaceutical	$	350,145	$	338,354		3	%	$	644,657	$	643,682		0	%
Industrial		176,109		183,664		(4	%)		331,327		345,994		(4	%)
Academic and governmental		72,908		74,201		(2	%)		137,040		137,213		0	%
Total net sales	$	599,162	$	596,219		0	%	$	1,113,024	$	1,126,889		(1	%)

In the second quarter and first half of 2019, sales to pharmaceutical customers were negatively impacted by the effect of foreign currency translation, which decreased sales to pharmaceutical customers by 2% and 3%, respectively, as well as a slower release of capital budgets by our customers due to uncertain macroeconomic conditions due to Brexit, particularly in Europe, and regulatory changes in our food and pharmaceutical markets in China. The decline in sales to industrial customers in the second quarter was primarily due to weaker demand for our LC-MS instruments, while the decline in the first half of 2019 was primarily due to a 5% decline in TA sales. The decrease in sales to academic and governmental customers was broad-based across all product classes, with increases in North America and Asia Other being offset by declines in other regions.

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Waters Products and Services Net Sales

Net sales for Waters products and services are as follows for the three and six months ended June 29, 2019 and June 30, 2018 (dollars in thousands):

	Three Months Ended
	June 29, 2019		% of Total			June 30, 2018		% of Total			% change
Waters instrument systems	$	238,777		45	%	$	239,928		46	%		—
Chemistry consumables		100,292		19	%		99,129		18	%		1	%
Total Waters product sales		339,069		64	%		339,057		64	%		—
Waters service		192,048		36	%		188,248		36	%		2	%
Total Waters net sales	$	531,117		100	%	$	527,305		100	%		1	%

	Six Months Ended
	June 29, 2019		% of Total			June 30, 2018		% of Total			% change
Waters instrument systems	$	423,389		43	%	$	438,031		44	%		(3	%)
Chemistry consumables		199,545		20	%		197,839		20	%		1	%
Total Waters product sales		622,934		63	%		635,870		64	%		(2	%)
Waters service		368,097		37	%		362,581		36	%		2	%
Total Waters net sales	$	991,031		100	%	$	998,451		100	%		(1	%)

The effect of foreign currency translation decreased Waters sales by 2% for both the second quarter and first half of 2019. Waters service sales benefited from increased sales of service plans and higher service demand billings to a higher installed base of customers. Precision chemistry consumables sales increased on the uptake in columns and application-specific testing kits and were driven by sales in the U.S. and China primarily to pharmaceutical customers. Waters recurring revenues were also negatively impacted by the negative impact of foreign currency translation which lowered sales by 3% in both the second quarter and first half of 2019 as compared to the second quarter and first half of 2018, as well as one less calendar day in the first half of 2019. Waters instrument system sales (LC and MS technology-based) decreased in all major geographical regions, primarily due to lower sales to pharmaceutical and industrial customers due to uncertainty caused by macroeconomic conditions relating to Brexit and other regulatory changes in certain regions.

In the second quarter of 2019, Waters sales increased 4% in the Americas, 2% in Asia and decreased 4% in Europe, where the effect of foreign currency decreased sales by 3%. Within Asia, Waters sales increased 2% and 5% in China and Japan, respectively, and were flat in the rest of Asia. In the first half of 2019, Waters sales increased 2% in the Americas, 1% in Asia and decreased 7% in Europe, where the effect of foreign currency decreased sales by 5%. Within Asia, Waters sales were flat in China and increased 2% in both Japan and the rest of Asia.

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TA Product and Services Net Sales

Net sales for TA products and services are as follows for the three and six months ended June 29, 2019 and June 30, 2018 (dollars in thousands):

	Three Months Ended
	June 29, 2019		% of Total			June 30, 2018		% of Total			% change
TA instrument systems	$	48,196		71	%	$	49,812		72	%		(3	%)
TA service		19,849		29	%		19,102		28	%		4	%
Total TA net sales	$	68,045		100	%	$	68,914		100	%		(1	%)
	Six Months Ended
	June 29, 2019		% of Total			June 30, 2018		% of Total			% change
TA instrument systems	$	84,834		70	%	$	92,116		72	%		(8	%)
TA service		37,159		30	%		36,322		28	%		2	%
Total TA net sales	$	121,993		100	%	$	128,438		100	%		(5	%)

The decline in TA instrument system sales was primarily due to lower customer demand resulting from macroeconomic conditions, tariff posturing and political instability. TA service sales increased due to sales of service plans and billings to a higher installed base of customers. The effect of foreign currency translation decreased TA sales 1% for both the second quarter and first half of 2019.

In the second quarter of 2019, TA sales increased 9% in the Americas, but decreased 10% in Europe and 7% in Asia. For the first half of 2019, TA sales increased 2% in the Americas, but decreased 19% in Europe and 4% in Asia. TA’s sales in the U.S. increased 12% and 4% in the second quarter and first half of 2019, respectively. TA sales in Europe were negatively impacted by the effect of foreign currency translation, which decreased sales 3% and 4% in second quarter and first half of 2019, respectively. Within Asia, TA sales growth in Japan and China were offset by declines in the rest of Asia.

Cost of Sales

Cost of sales for the second quarter and first half of 2019 increased 3% and 1%, respectively, as compared to the second quarter and first half of 2018 due to a change in sales mix. The effect of foreign currency translation had a slight impact on the second quarter of 2019, but increased cost of sales by 2% for the first half of 2019. Cost of sales is affected by many factors, including, but not limited to, foreign currency translation, product mix, product costs of instrument systems and amortization of software platforms. At current foreign currency exchange rates, the Company expects foreign currency translation to negatively impact gross profit for the remainder of 2019.

Selling and Administrative Expenses

Selling and administrative expenses decreased 3% for the second quarter and were flat year-to-date. Selling and administrative expenses were impacted by higher merit compensation costs, as well as $1 million and $9 million of severance-related costs in connection with a reduction in workforce in the second quarter and first half of 2019, respectively. In addition, the effect of foreign currency translation decreased selling and administrative expenses by 3% and 4% for the second quarter and first half of 2019, respectively.

As a percentage of net sales, selling and administrative expenses were 22.2% and 24.0% for the 2019 quarter and year-to-date, respectively, and 22.9% and 23.7% for the 2018 quarter and year-to-date, respectively.

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Research and Development Expenses

Research and development expenses increased 2% in both the second quarter and first half of 2019, primarily as a result of merit compensation and costs associated with new products and the development of new technology initiatives. The effect of foreign currency translation decreased research and development expenses by 3% for both the second quarter and first half of 2019 on the Company’s U.K.-based research and development expenses, as the British pound weakened against the U.S. dollar as compared to the second quarter and first half of 2018.

Litigation Settlement

In the second quarter of 2017, the Company incurred an $11 million litigation provision related to the issuance of a verdict in a patent litigation case. In the first quarter of 2018, the Company resolved the case with a final settlement that resulted in a gain of $2 million.

Interest Expense, Net

The increase in net interest expense in the second quarter and first half of 2019 was primarily attributable to lower interest income on lower cash, cash equivalents and investment balances, offset by the additional interest income from the U.S.-to-Euro interest rate cross-currency swap agreements entered into during the second half of 2018 and second quarter of 2019.

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 statutory tax rates are 21%, 12.5%, 19% and 17%, respectively, as of June 29, 2019. The Company has a contractual tax rate of 0% on qualifying activities in Singapore through March 2021, based upon the achievement of certain contractual milestones, which the Company expects to meet. The effect of applying the contractual tax rate rather than the statutory tax rate to income from qualifying activities in Singapore increased the Company’s net income for the first half of 2019 and 2018 by $9 million and $13 million, respectively, and increased the Company’s net income per diluted share by $0.13 and $0.17, respectively.

The Company’s effective tax rate for the second quarter of 2019 and 2018 was 15.9% and 10.8%, respectively. The increase in the effective income tax rate can be attributed to a $9 million reduction in the second quarter 2018 income tax expense related to the change in foreign currency exchange rates on the earnings taxed in December 2017 under the toll charge of the 2017 Tax Act and an additional $1 million tax benefit related to stock-based compensation. This reduction in income tax expense decreased the effective tax rate by 5.6 percentage points for the second quarter of 2018. The remaining differences between the effective tax rates can primarily be attributed to differences in the proportionate amounts of pre-tax income recognized in jurisdictions with different effective tax rates.

The Company’s effective tax rate for the first half of 2019 and 2018 was 12.4% and 15.1%, respectively. The effective tax rate for the first half of 2019 includes a $3 million income tax benefit related to the finalization of certain regulations relating to the Tax Cuts and Jobs Act (the “2017 Tax Act”). This income tax benefit decreased the effective tax rate by 1.0 percentage points for the first half of 2019. The effective tax rate for the first half of 2018 includes $4 million of additional income tax expense related to the change in foreign currency exchange rates on the earnings taxed in December 2017 under the toll charge of the 2017 Tax Act. This additional income tax expense increased the effective tax rate by 1.3 percentage points for the first half of 2018. The remaining differences between the effective tax rates can primarily be attributed to differences in the proportionate amounts of pre-tax income recognized in jurisdictions with different effective tax rates.

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Liquidity and Capital Resources

Condensed Consolidated Statements of Cash Flows (in thousands):

	Six Months Ended
	June 29, 2019			June 30, 2018
Net income	$	253,396		$	267,628
Depreciation and amortization		53,615			55,836
Stock-based compensation		19,255			18,971
Deferred income taxes		1,632			(2,992	)
Change in accounts receivable		52,508			36,591
Change in inventories		(62,200	)		(33,877	)
Change in accounts payable and other current liabilities		(10,439	)		(77,848	)
Change in deferred revenue and customer advances		54,672			40,134
Effect of the 2017 Tax Act		(3,229	)		12,450
Other changes		(56,407	)		(40,336	)
Net cash provided by operating activities		302,803			276,557
Net cash provided by investing activities		785,063			1,206,382
Net cash used in financing activities		(1,294,734	)		(1,370,231	)
Effect of exchange rate changes on cash and cash equivalents		(1,414	)		(12,823	)
(Decrease) increase in cash and cash equivalents	$	(208,282	)	$	99,885

Cash Flow from Operating Activities

Net cash provided by operating activities was $303 million and $277 million during the six months ended June 29, 2019 and June 30, 2018, respectively. The changes within net cash provided by operating activities include the following significant changes in the sources and uses of net cash provided by operating activities, aside from the changes in net income:

• The changes in accounts receivable were primarily attributable to timing of payments made by customers and timing of sales. Days sales outstanding increased to 79 days at June 29, 2019 as compared to 75 days at June 30, 2018.

• The changes in inventory were primarily attributable to anticipated annual increases in sales volumes, as well as new product launches and a build of safety stock inventory in advance of the Brexit decision.

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

• Net cash provided from deferred revenue and customer advances results from annual increases in new service contracts as a higher installed base of customers renew 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 Flow from Investing Activities

Net cash provided by investing activities totaled $785 million in the six months ended June 29, 2019 compared to net cash provided by investing activities that totaled $1,206 million in the six months ended June 30, 2018. Additions to fixed assets and capitalized software were $65 million and $37 million in the first half of 2019 and 2018, respectively. In February 2018, the Company’s Board of Directors approved expanding its precision chemistry consumable manufacturing operations in the U.S. The Company anticipates spending an estimated $215 million to build and equip this new state-of-the-art manufacturing facility, which will be paid for with existing cash, investments and debt capacity. The Company has incurred $33 million of costs associated with the construction of this facility during the first half of 2019, and has incurred a total of $48 million through the end of the second quarter 2019.

During the six months ended June 29, 2019 and June 30, 2018, the Company purchased $36 million and $513 million of investments, respectively, while $891 million and $1,760 million of investments matured, respectively, and were used for financing activities described below.

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Cash Flow from Financing Activities

During the six months ended June 29, 2019 and June 30, 2018, the Company’s net debt borrowings were flat and decreased by $850 million, respectively. During the six months ended June 30, 2018, the Company reduced its outstanding debt using cash repatriated under the 2017 Tax Cuts and Jobs Act (the “2017 Tax Act”). As of June 29, 2019, the Company had a total of $1,149 million in outstanding debt, which consisted of $560 million in outstanding senior unsecured notes, $300 million borrowed under a term loan and $290 million borrowed under a revolving credit facility, with both the term loan and revolving credit facilities under the credit agreement dated November 2017 (“2017 Credit Agreement”). As of June 29, 2019, the Company had a total amount available to borrow under the 2017 Credit Agreement of $1,208 million after outstanding letters of credit. As of June 29, 2019, the Company was in compliance with all debt covenants.

In February 2019, certain defined terms related to the subsidiary guarantors were amended in the 2017 Credit Agreement and senior unsecured note agreements. In addition, the Company amended the senior unsecured note agreements to allow the Company to elect an increase in the permitted leverage ratio from 3.50:1 to 4.0:1, for a period of three consecutive quarters, for a material acquisition of $400 million or more. During the period of time where the leverage ratio exceeds 3.50:1, the interest payable on the senior unsecured notes shall increase by 0.50%. The debt covenants in the senior unsecured note agreements were also modified to address the change in accounting guidance for leases.

In 2018 and April 2019, the Company entered into $410 million of U.S.-to-Euro interest rate cross-currency swap agreements that hedge the Company’s net investment in its Euro denominated net assets. As a result of entering into these agreements, the Company anticipates lowering net interest expense by approximately $12 million annually over the three-year term of the agreements.

In January 2019, the Company’s Board of Directors authorized the Company to repurchase up to $4 billion of its outstanding common stock over a two-year period. This new program replaced the remaining amounts available from the pre-existing program. During the first half of 2019 and 2018, the Company repurchased $1,321 million and $546 million, respectively, of the Company’s outstanding common stock under authorized share repurchase programs. In addition, the Company repurchased $8 million of common stock related to the vesting of restricted stock units during both the six months ended June 29, 2019 and June 30, 2018. The Company expects to increase its share repurchase activity in 2019 as compared to 2018 and intends to use existing cash and investments, cash flows from operations and, as needed, borrowings under its existing credit facilities to fund its repurchases under its share repurchase program.

The Company received $30 million and $35 million of proceeds from the exercise of stock options and the purchase of shares pursuant to the Company’s employee stock purchase plan during the six months ended June 29, 2019 and June 30, 2018, respectively.

The Company had cash, cash equivalents and investments of $676 million as of June 29, 2019. The majority of the Company’s cash, cash equivalents and investments are generated from foreign operations, with $421 million held by foreign subsidiaries at June 29, 2019, of which $256 million was held in currencies other than U.S. dollars. The Company believes it has sufficient levels of cash flow and access to its existing cash, cash equivalents and investments to fund operations and capital expenditures, service debt interest, finance potential acquisitions and continue the authorized stock repurchase program in the U.S. These cash requirements are managed by the Company’s cash flow from operations, its existing cash, cash equivalents and investments, and the use of the Company’s revolving credit facility.

Management believes, as of the date of this report, that the Company’s financial position, 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 for at least the next twelve months. The Company has conducted a post-tax reform evaluation of its capital allocation strategy and the Company is currently planning to use its existing cash, cash equivalents and investments, cash flow from operations and available debt capacity to repurchase up to $4 billion of the Company’s common stock over the next two years. The Company is currently planning to increase its outstanding debt balances up to approximately 2.5 times the Company’s net debt-to-earnings before interest, taxes, depreciation and amortization ratio to fund a significant portion of these share repurchases. In addition, as of December 31, 2018, the Company determined that it will provide income taxes on all future foreign earnings and reverse its historical assertion that its foreign earnings were

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permanently invested. However, the Company will continue to be permanently reinvested in relation to the cumulative historical outside basis difference that is not related to the unremitted earnings. There have been no other significant changes to the Company’s financial position.

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/A for the year ended December 31, 2018, as filed with the SEC on March 1, 2019. The Company reviewed its contractual obligations and commercial commitments as of June 29, 2019 and determined that there were no material changes outside the ordinary course of business from the information set forth in the Annual Report on Form 10-K/A.

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 fiscal year 2019, the Company expects to contribute a total of approximately $3 million to $6 million to its defined benefit plans, excluding the U.S. defined benefit pension 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 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/A for the year ended December 31, 2018, as filed with the SEC on March 1, 2019, 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, income taxes, uncertain tax positions, warranty, litigation, pension and other postretirement benefit obligations, stock-based compensation, business combinations and asset acquisitions and valuation of contingent consideration. The Company reviewed its policies and determined that those policies remain the Company’s most critical accounting policies for the six months ended June 29, 2019. The Company did not make any changes in those policies during the six months ended June 29, 2019.

New Accounting Pronouncements

Please refer to Note 14, Recent Accounting Standard Changes and Developments, in the Condensed Notes to Consolidated Financial Statements.

40

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 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 new or proposed tariff or trade regulations or changes in the interpretation or enforcement of existing regulations; 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 of the 2017 Tax Act in the U.S.; the impact and outcome of the Company’s various ongoing tax audit examinations; the achievement of contractual milestones to preserve foreign tax rates; the impact and outcome of litigation matters; the impact of the loss of intellectual property protection; the impact of new accounting standards and pronouncements; the adequacy of the Company’s supply chain and manufacturing capabilities and facilities; the impact of regulatory compliance; the Company’s expected cash flow, borrowing capacity, debt repayment and refinancing; the Company’s ability to fund working capital, capital expenditures, service debt, repay outstanding lines of credit, make authorized share repurchases, fund potential acquisitions and pay any adverse litigation or tax audit liabilities, particularly in the U.S.; future impairment charges; the Company’s contributions to defined benefit plans; the Company’s expectations regarding changes to its financial position; compliance with applicable environmental laws; and the impact of recent acquisitions on sales and earnings.

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

• 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 new or proposed tariff or trade regulations or changes in the interpretation or enforcement of existing regulations; 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; changes in timing and demand for the Company’s products among the Company’s customers and various market sectors or geographies, 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 for the Company’s products; 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 United States Food and Drug Administration and the United States 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.

41

• 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 in jurisdictions in which the Company operates, specifically as it relates to the 2017 Tax Act in the U.S.; 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/A for the year ended December 31, 2018, as filed with the SEC on March 1, 2019. 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

The Company is exposed to the risk of interest rate fluctuations from the investments of cash generated from operations. Investments with maturities greater than 90 days are classified as investments, and are held primarily in U.S. dollar-denominated treasury bills and commercial paper, bank deposits and corporate debt securities. As of June 29, 2019, the Company estimates that a hypothetical adverse change of 100 basis points across all maturities would not have a material effect on the fair market value of its portfolio.

The Company is also exposed to the risk of exchange rate fluctuations. 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 June 29, 2019 and December 31, 2018, $421 million out of $676 million and $471 million out of $1,735 million, respectively, of the Company’s total cash, cash equivalents and investments were held by foreign subsidiaries. In addition, $256 million out of $676 million and $251 million out of $1,735 million of cash, cash equivalents and investments were held in currencies other than the U.S. dollar at June 29, 2019 and December 31, 2018, respectively. As of June 29, 2019, the Company had no holdings in auction rate securities or commercial paper issued by structured investment vehicles.

Assuming a hypothetical adverse change of 10% in year-end exchange rates (a strengthening of the U.S. dollar), the fair market value of the Company’s cash, cash equivalents and investments held in currencies other than the U.S. dollar as of June 29, 2019 would decrease by approximately $26 million, of which the majority would be recorded to foreign currency translation in other comprehensive income within stockholders’ equity.

There have been no other material changes in the Company’s market risk during the six months ended June 29, 2019. 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/A for the year ended December 31, 2018, as filed with the SEC on March 1, 2019.

Item 4: Controls and Procedures

Evaluation of Disclosure Controls and Procedures

The Company’s chief executive officer and chief financial officer (principal executive officer and principal financial officer), with the participation of management, evaluated the effectiveness of the Company’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this Quarterly Report on Form 10-Q. Based on this evaluation, the Company’s chief executive officer and chief financial officer concluded that the Company’s disclosure controls and procedures were effective as of June 29, 2019 (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.

42

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 June 29, 2019 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 three months ended June 29, 2019 as described in Item 3 of Part I of the Company’s Annual Report on Form 10-K/A for the year ended December 31, 2018, as filed with the SEC on March 1, 2019.

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/A for the year ended December 31, 2018, as filed with the SEC on March 1, 2019. The Company reviewed its risk factors as of June 29, 2019 and determined that there were no material changes from the ones set forth in the Form 10-K/A. 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 June 29, 2019 of equity securities registered by the Company under the Exchange Act (in thousands, except per share data):

Period	Total Number of Shares Purchased (1)		Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Programs (2)		Maximum Dollar Value of Shares that May Yet Be Purchased Under the Programs (2)
March 31, 2019 to April 27, 2019		721	$	241.08		721	$	3,228,622
April 28, 2019 to May 25, 2019		728	$	211.17		728	$	3,074,898
May 26, 2019 to June 29, 2019		1,129	$	206.95		1,129	$	2,841,274
Total		2,578	$	217.69		2,578	$	2,841,274

(1) The Company’s repurchase activity related to the vesting of restricted stock units during the three months ended June 29, 2019 was insignificant.

(2) In January 2019, the Company’s Board of Directors authorized the Company to repurchase up to $4 billion of its outstanding common stock in open market or private transactions over a two-year period. This new program replaced the remaining amounts available under the pre-existing authorization.

43

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 June 29, 2019, formatted in Inline XBRL: (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 (vi) 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.

44

SIGNATURES

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

Waters Corporation

/s/ Sherry L. Buck

Sherry L. Buck

Senior Vice President and

Chief Financial Officer

Date: July 31, 2019

45

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: July 31, 2019	/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, Sherry L. Buck, 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: July 31, 2019	/s/ Sherry L. Buck
	Sherry L. Buck
	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 June 29, 2019, 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: July 31, 2019

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 June 29, 2019, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Sherry L. Buck, 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: July 31, 2019

By:	/s/ Sherry L. Buck
	Sherry L. Buck
	Chief Financial Officer

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 29, 2019	Jul. 26, 2019
Document and Entity Information [Abstract]
Amendment Flag	false
Document Type	10-Q
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Entity Interactive Data Current	Yes
Entity Central Index Key	0001000697
Document Quarterly Report	true
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Document Period End Date	Jun. 29, 2019
Entity Registrant Name	WATERS CORP /DE/
Entity File Number	01-14010
Entity Tax Identification Number	13-3668640
Entity Incorporation, State or Country Code	DE
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Shell Company	false
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Address, Address Line One	34 Maple Street
Entity Address, City or Town	Milford
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	01757
City Area Code	508
Local Phone Number	478-2000
Trading Symbol	WAT
Security Exchange Name	NYSE
Title of 12(b) Security	Common Stock
Entity Common Stock, Shares Outstanding		66,759,444

XML

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 29, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 587,998	$ 796,280
Investments	87,775	938,944
Accounts receivable, net	518,520	568,316
Inventories	351,552	291,569
Other current assets	74,556	68,054
Total current assets	1,620,401	2,663,163
Property, plant and equipment, net	368,878	343,083
Intangible assets, net	244,094	246,902
Goodwill	355,890	355,614
Operating lease assets	91,060
Other assets	142,599	118,664
Total assets	2,822,922	3,727,426
Current liabilities:
Notes payable and debt	100,295	178
Accounts payable	67,397	68,168
Accrued employee compensation	36,464	64,545
Deferred revenue and customer advances	220,711	164,965
Current operating lease liabilities	25,106
Accrued treasury stock repurchases	9,874	23,005
Accrued income taxes	38,517	22,943
Accrued warranty	11,583	12,300
Other current liabilities	101,749	92,827
Total current liabilities	611,696	448,931
Long-term liabilities:
Long-term debt	1,048,394	1,148,172
Long-term income tax liabilities	393,297	430,866
Long-term operating lease liabilities	66,713
Long-term portion of retirement benefits	55,825	55,853
Other long-term liabilities	90,752	76,346
Total long-term liabilities	1,654,981	1,711,237
Total liabilities	2,266,677	2,160,168
Commitments and contingencies (Notes 6, 7, 8 and 12)
Stockholders' equity:
Preferred stock, par value $0.01 per share, 5,000 shares authorized, none issued at June 29, 2019 and December 31, 2018
Common stock, par value $0.01 per share, 400,000 shares authorized, 160,841 and 160,472 shares issued, 67,620 and 73,115 shares outstanding at June 29, 2019 and December 31, 2018, respectively	1,608	1,605
Additional paid-in capital	1,883,958	1,834,741
Retained earnings	6,248,601	5,995,205
Treasury stock, at cost, 93,221 and 87,357 shares at June 29, 2019 and December 31, 2018, respectively	(7,462,826)	(6,146,322)
Accumulated other comprehensive loss	(115,096)	(117,971)
Total stockholders' equity	556,245	1,567,258
Total liabilities and stockholders' equity	$ 2,822,922	$ 3,727,426

XML

CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 29, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
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	160,841,000	160,472,000
Common stock, shares outstanding	67,620,000	73,115,000
Treasury stock, shares	93,221,000	87,357,000

XML

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Revenues:
Total net sales	$ 599,162	$ 596,219	$ 1,113,024	$ 1,126,889
Costs and operating expenses:
Selling and administrative expenses	133,208	136,645	267,547	267,052
Research and development expenses	36,490	35,644	71,550	70,124
Purchased intangibles amortization	2,264	1,602	4,545	3,261
Litigation settlement			0	(1,672)
Total costs and operating expenses	421,508	417,026	814,219	803,321
Operating income	177,654	179,193	298,805	323,568
Other expense	(342)	(1,828)	(867)	(1,482)
Interest expense	(11,448)	(11,692)	(23,011)	(25,530)
Interest income	5,871	8,888	14,186	18,554
Income before income taxes	171,735	174,561	289,113	315,110
Provision for income taxes	27,325	18,884	35,717	47,482
Net income	$ 144,410	$ 155,677	$ 253,396	$ 267,628
Net income per basic common share	$ 2.09	$ 2.00	$ 3.60	$ 3.42
Weighted-average number of basic common shares	68,989	77,833	70,331	78,330
Net income per diluted common share	$ 2.08	$ 1.98	$ 3.57	$ 3.39
Weighted-average number of diluted common shares and equivalents	69,494	78,438	70,904	79,041
Product [Member]
Revenues:
Total net sales	$ 387,265	$ 388,869	$ 707,768	$ 727,986
Costs and operating expenses:
Costs and operating expenses	156,975	159,979	289,365	300,445
Service [Member]
Revenues:
Total net sales	211,897	207,350	405,256	398,903
Costs and operating expenses:
Costs and operating expenses	$ 92,571	$ 83,156	$ 181,212	$ 164,111

XML

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 144,410	$ 155,677	$ 253,396	$ 267,628
Other comprehensive (loss) income:
Foreign currency translation	(7,031)	(47,159)	491	(23,246)
Unrealized gains (losses) on investments before income taxes	710	1,453	3,054	(1,523)
Income tax (expense) benefit	(157)	164	(704)	257
Unrealized gains (losses) on investments, net of tax	553	1,617	2,350	(1,266)
Retirement liability adjustment before reclassifications	(41)	669	(102)	284
Amounts reclassified to other income	90	909	183	1,816
Retirement liability adjustment before income taxes	49	1,578	81	2,100
Income tax expense	(23)	(306)	(47)	(422)
Retirement liability adjustment, net of tax	26	1,272	34	1,678
Other comprehensive (loss) income	(6,452)	(44,270)	2,875	(22,834)
Comprehensive income	$ 137,958	$ 111,407	$ 256,271	$ 244,794

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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income	$ 253,396	$ 267,628
Adjustments to reconcile net income to net cash provided by operating activities:
Stock-based compensation	19,255	18,971
Deferred income taxes	1,632	(2,992)
Depreciation	28,704	30,585
Amortization of intangibles	24,911	25,251
Change in operating assets and liabilities:
Decrease in accounts receivable	52,508	36,591
Increase in inventories	(62,200)	(33,877)
Increase in other current assets	(11,627)	(15,264)
Increase in other assets	(15,060)	(2,857)
Decrease in accounts payable and other current liabilities	(10,439)	(77,848)
Increase in deferred revenue and customer advances	54,672	40,134
Effect of the 2017 Tax & Jobs Act	(3,229)	12,450
Decrease in other liabilities	(29,720)	(22,215)
Net cash provided by operating activities	302,803	276,557
Cash flows from investing activities:
Additions to property, plant, equipment and software capitalization	(65,188)	(36,831)
Investment in unaffiliated companies	(4,750)	(3,215)
Purchases of investments	(35,523)	(513,342)
Maturities and sales of investments	890,524	1,759,770
Net cash provided by investing activities	785,063	1,206,382
Cash flows from financing activities:
Proceeds from debt issuances	363	226
Payments on debt	(245)	(850,000)
Proceeds from stock plans	30,129	34,845
Purchases of treasury shares	(1,329,635)	(553,144)
Proceeds from (payments for) derivative contracts	4,654	(2,158)
Net cash used in financing activities	(1,294,734)	(1,370,231)
Effect of exchange rate changes on cash and cash equivalents	(1,414)	(12,823)
(Decrease) increase in cash and cash equivalents	(208,282)	99,885
Cash and cash equivalents at beginning of period	796,280	642,319
Cash and cash equivalents at end of period	$ 587,998	$ 742,204

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning balance at Dec. 31, 2017	$ 2,233,788	$ 1,598	$ 1,745,088	$ 5,405,380	$ (4,808,211)	$ (110,067)
Beginning Balance, shares at Dec. 31, 2017		159,845
Adoption of new accounting pronouncement	(3,969)			(3,969)
Net income	267,628			267,628
Other comprehensive income (loss)	(22,834)					(22,834)
Issuance of common stock for Employee Stock Purchase Plan	4,051		4,051
Issuance of common stock for Employee Stock Purchase Plan, shares		24
Issuance of common stock for stock options exercised	30,781	$ 3	30,778
Issuance of common stock for stock options exercised, shares		305
Treasury stock	(553,144)				(553,144)
Stock-based compensation	18,793	$ 2	18,791
Stock-based compensation, shares		124
Ending balance at Jun. 30, 2018	1,975,094	$ 1,603	1,798,708	5,669,039	(5,361,355)	(132,901)
Ending Balance, shares at Jun. 30, 2018		160,298
Beginning balance at Mar. 31, 2018	2,114,894	$ 1,602	1,779,142	5,513,362	(5,090,581)	(88,631)
Beginning Balance, shares at Mar. 31, 2018		160,200
Net income	155,677			155,677
Other comprehensive income (loss)	(44,270)					(44,270)
Issuance of common stock for Employee Stock Purchase Plan	2,486		2,486
Issuance of common stock for Employee Stock Purchase Plan, shares		14
Issuance of common stock for stock options exercised	8,072	$ 1	8,071
Issuance of common stock for stock options exercised, shares		83
Treasury stock	(270,774)				(270,774)
Stock-based compensation	9,009		9,009
Stock-based compensation, shares		1
Ending balance at Jun. 30, 2018	1,975,094	$ 1,603	1,798,708	5,669,039	(5,361,355)	(132,901)
Ending Balance, shares at Jun. 30, 2018		160,298
Beginning balance at Dec. 31, 2018	1,567,258	$ 1,605	1,834,741	5,995,205	(6,146,322)	(117,971)
Beginning Balance, shares at Dec. 31, 2018		160,472
Net income	253,396			253,396
Other comprehensive income (loss)	2,875					2,875
Issuance of common stock for Employee Stock Purchase Plan	4,168		4,168
Issuance of common stock for Employee Stock Purchase Plan, shares		25
Issuance of common stock for stock options exercised	26,099	$ 2	26,097
Issuance of common stock for stock options exercised, shares		239
Treasury stock	(1,316,504)				(1,316,504)
Stock-based compensation	18,953	$ 1	18,952
Stock-based compensation, shares		105
Ending balance at Jun. 29, 2019	556,245	$ 1,608	1,883,958	6,248,601	(7,462,826)	(115,096)
Ending Balance, shares at Jun. 29, 2019		160,841
Beginning balance at Mar. 30, 2019	967,742	$ 1,608	1,872,216	6,104,191	(6,901,629)	(108,644)
Beginning Balance, shares at Mar. 30, 2019		160,825
Net income	144,410			144,410
Other comprehensive income (loss)	(6,452)					(6,452)
Issuance of common stock for Employee Stock Purchase Plan	2,498		2,498
Issuance of common stock for Employee Stock Purchase Plan, shares		15
Treasury stock	(561,197)				(561,197)
Stock-based compensation	9,244		9,244
Stock-based compensation, shares		1
Ending balance at Jun. 29, 2019	$ 556,245	$ 1,608	$ 1,883,958	$ 6,248,601	$ (7,462,826)	$ (115,096)
Ending Balance, shares at Jun. 29, 2019		160,841

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Basis of Presentation and Summary of Significant Accounting Policies

6 Months Ended

Jun. 29, 2019

Accounting Policies [Abstract]

Basis of Presentation and Summary of Significant Accounting Policies

1 Basis of Presentation and Summary of Significant Accounting Policies

Waters Corporation (the “Company,” “we,” “our,” or “us”) is a specialty measurement company that operates with a fundamental underlying purpose to advance the science that enables our customers to enhance human health and well-being. The Company has pioneered analytical workflow solutions involving liquid chromatography, mass spectrometry and thermal analysis innovations serving the life, materials and food sciences for more than 60 years. The Company primarily designs, manufactures, sells and services high performance liquid chromatography (“HPLC”), ultra performance liquid chromatography (“UPLCTM” 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 common software platforms. 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 technology, principally in conjunction with chromatography, is employed 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 TATM 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 life science research. The Company is also a developer and supplier of advanced software-based products that interface with the Company’s instruments, as well as other manufacturers’ instruments.

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 second fiscal quarters for 2019 and 2018 ended on June 29, 2019 and June 30, 2018, 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 footnote disclosures required for annual financial statements prepared in accordance with 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 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/A for the year ended December 31, 2018, as filed with the U.S. Securities and Exchange Commission (“SEC”) on March 1, 2019.

Translation of Foreign Currencies

The functional currency of each of the Company’s foreign operating subsidiaries is the local currency of its country of domicile, 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.

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 respective period. Any resulting translation gains or losses are included in accumulated other comprehensive income in the consolidated balance sheets.

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 June 29, 2019 and December 31, 2018, $421 million out of $676 million and $471 million out of $1,735 million, respectively, of the Company’s total cash, cash equivalents and investments were held by foreign subsidiaries. In addition, $256 million out of $676 million and $251 million out of $1,735 million of cash, cash equivalents and investments were held in currencies other than the U.S. dollar at June 29, 2019 and December 31, 2018, respectively.

Accounts Receivable and Allowance for Doubtful Accounts

Trade accounts receivable are recorded at the invoiced amount and do not bear interest. The Company has very limited use of rebates and other cash considerations payable to customers and, as a result, the transaction price determination does not have any material variable consideration. The allowance for doubtful accounts is the best estimate of the amount of probable credit losses in the existing accounts receivable. The allowance is based on a number of factors, including historical experience and the customer’s credit-worthiness. The allowance for doubtful accounts is reviewed on at least a quarterly basis. Past due balances over 90 days and over a specified amount are reviewed individually for collectibility. Account balances are charged against the allowance when the Company determines it is probable that the receivable will not be recovered. The Company does not have any off-balance sheet credit exposure related to its customers. Historically, the Company has not experienced significant bad debt losses.

The following is a summary of the activity of the Company’s allowance for doubtful accounts for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Balance at							Balance at
	Beginning							End of
	of Period		Additions		Deduction			Period
Allowance for Doubtful Accounts
June 29, 2019	$	7,663	$	3,793	$	(3,426	)	$	8,030
June 30, 2018	$	6,109	$	1,825	$	(1,778	)	$	6,156

Other Investments

During the six months ended June 29, 2019 and June 30, 2018, the Company made investments in unaffiliated companies of $5 million and $3 million, respectively.

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 June 29, 2019 and December 31, 2018. 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 June 29, 2019 (in thousands):

			Quoted Prices
			in Active		Significant
			Markets		Other		Significant
	Total at		for Identical		Observable		Unobservable
	June 29,		Assets		Inputs		Inputs
	2019		(Level 1)		(Level 2)		(Level 3)
Assets:
U.S. Treasury securities	$	66,225	$	—	$	66,225	$	—
Corporate debt securities		94,335		—		94,335		—
Time deposits		57,964		—		57,964		—
Waters 401(k) Restoration Plan assets		33,278		33,278		—		—
Foreign currency exchange contracts		164		—		164		—
Interest rate cross-currency swap agreements		1,098		—		1,098		—
Total	$	253,064	$	33,278	$	219,786	$	—
Liabilities:
Contingent consideration	$	2,707	$	—	$	—	$	2,707
Foreign currency exchange contracts		292		—		292		—
Total	$	2,999	$	—	$	292	$	2,707

The following table represents the Company’s assets and liabilities measured at fair value on a recurring basis at December 31, 2018 (in thousands):

			Quoted Prices
			in Active		Significant
			Markets		Other		Significant
	Total at		for Identical		Observable		Unobservable
	December 31,		Assets		Inputs		Inputs
	2018		(Level 1)		(Level 2)		(Level 3)
Assets:
U.S. Treasury securities	$	164,315	$	—	$	164,315	$	—
Foreign government securities		3,463		—		3,463		—
Corporate debt securities		723,059		—		723,059		—
Time deposits		108,638		—		108,638		—
Waters 401(k) Restoration Plan assets		33,104		33,104		—		—
Foreign currency exchange contracts		503		—		503		—
Interest rate cross-currency swap agreements		1,093				1,093
Total	$	1,034,175	$	33,104	$	1,001,071	$	—
Liabilities:
Contingent consideration	$	2,476	$	—	$	—	$	2,476
Foreign currency exchange contracts		224		—		224		—
Total	$	2,700	$	—	$	224	$	2,476

Fair Value of 401(k) Restoration Plan Assets

The 401(k) Restoration Plan is a nonqualified defined contribution plan and the assets were held in registered mutual funds and have been classified as Level 1. The fair values of the assets in the plan are determined through market and observable sources from daily quoted prices on nationally recognized securities exchanges.

Fair Value of Cash Equivalents, Investments, Foreign Currency Exchange Contracts and Interest Rate Cross-Currency Swap Agreements

The fair values of the Company’s cash equivalents, investments 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.

Fair Value of Contingent Consideration

The fair value of the Company’s liability for contingent consideration relates to earnout payments in connection with 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 $3 million and $2 million at June 29, 2019 and December 31, 2018, respectively, based on the Company’s best estimate, as the earnout is based on future sales of certain products, some of which are currently in development, through 2034.

Fair Value of Other Financial Instruments

The Company’s 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 $510 million at both June 29, 2019 and December 31, 2018, 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 $512 million and $502 million at June 29, 2019 and December 31, 2018, 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 strategies in managing exposures to changes in foreign currency exchange rates are to (1) 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 and (2) mitigate foreign exchange risk exposure of international operations by hedging the variability in the movement of foreign currency exchange rates on a portion of its Euro-denominated net asset investments. The Company presents the derivative transactions in financing activities in the statement of cash flows.

Foreign Currency Exchange Contracts

The Company does not specifically enter into any derivatives that hedge foreign-currency-denominated operating 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, Mexican peso and Brazilian real.

Interest Rate Cross-Currency Swap Agreements

In 2018, the Company entered into three-year interest rate cross-currency swap derivative agreements with an aggregate notional value of $300 million to hedge the variability in the movement of foreign currency exchange rates on a portion of its Euro-denominated net asset investments. In 2019, the Company entered into additional interest rate cross-currency swap derivative agreements with an aggregate notional value of $110 million and contract terms between one and three years. Under hedge accounting, the change in fair value of the derivative that relates to changes in the foreign currency spot rate are recorded in the currency translation adjustment in other comprehensive income and remain in accumulated comprehensive income in stockholders’ equity until the sale or substantial liquidation of the foreign operation. The difference between the interest rate received and paid under the interest rate cross-currency swap derivative agreement is recorded in interest income in the statement of operations.

The Company’s foreign currency exchange contracts and interest rate cross-currency swap agreements included in the consolidated balance sheets are classified as follows (in thousands):

	June 29, 2019					December 31, 2018
	Notional Value		Fair Value			Notional Value		Fair Value
Foreign currency exchange contracts:
Other current assets	$	31,270	$	164		$	112,212	$	503
Other current liabilities	$	124,346	$	292		$	40,175	$	224
Interest rate cross-currency swap agreements:
Other assets	$	410,000	$	1,098		$	300,000	$	1,093
Accumulated other comprehensive income			$	(1,098	)			$	(1,093	)

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

	Financial	Three Months Ended						Six Months Ended
	Statement	June 29, 2019			June 30, 2018			June 29, 2019			June 30, 2018
	Classification
Foreign currency exchange contracts:
Realized gains (losses) on closed contracts	Cost of sales	$	136		$	(4,096	)	$	(407	)	$	(2,158	)
Unrealized losses on open contracts	Cost of sales		(3,044	)		(105	)		(2,518	)		(1,092	)
Cumulative net pre-tax losses	Cost of sales	$	(2,908	)	$	(4,201	)	$	(2,925	)	$	(3,250	)
Interest rate cross-currency swap agreements:
Interest earned	Interest income	$	2,923		$	—		$	5,150		$	—
Unrealized (losses) gains
on open contracts	Stockholders’ equity	$	(6,022	)	$	—		$	1,098		$	—

Stockholders’ Equity

In January 2019, the Company’s Board of Directors authorized the Company to repurchase up to $4 billion of its outstanding common stock over a two-year period. This new program replaced the remaining amounts available from the pre-existing program. During the six months ended June 29, 2019 and June 30, 2018, the Company repurchased 5.9 million and 2.7 million shares of the Company’s outstanding common stock at a cost of $1.3 billion and $546 million, respectively, under the January 2019 authorization and other previously announced programs. As of June 29, 2019, the Company had repurchased an aggregate of 5.1 million shares at a cost of $1.2 billion under the January 2019 repurchase program and had a total of $2.8 billion authorized for future repurchases. In addition, the Company repurchased $8 million of common stock related to the vesting of restricted stock units during both the six months ended June 29, 2019 and June 30, 2018, respectively. The Company believes that it has the financial flexibility to fund these share repurchases given current cash levels and debt borrowing capacity, as well as to invest in research, technology and business acquisitions.

As of June 29, 2019, the Company accrued $10 million as a result of treasury stock purchases that were settled in the third quarter of 2019.

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 three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Balance at							Balance at
	Beginning		Accruals for		Settlements			End of
	of Period		Warranties		Made			Period
Accrued warranty liability:
June 29, 2019	$	12,300	$	3,571	$	(4,288	)	$	11,583
June 30, 2018	$	13,026	$	3,588	$	(4,115	)	$	12,499

Restructuring and Other Charges

In January 2019, the Company made organizational changes to better align our resources with our growth and innovation strategies, resulting in a worldwide workforce reduction, impacting 1% of the Company’s employees. The Company recorded $1 million and $9 million of severance and related costs during the three and six months ended June 29, 2019, respectively.

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Revenue Recognition

6 Months Ended

Jun. 29, 2019

Revenue from Contract with Customer [Abstract]

Revenue Recognition

2 Revenue Recognition

The Company recognizes revenue upon transfer of control of promised products and services to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products or services. The Company generally enters into contracts that include a combination of products and services. Revenue is allocated to distinct performance obligations and is recognized net of allowances for returns and discounts.

The Company recognizes revenue on product sales at the time control of the product transfers to the customer. In substantially all of the Company’s arrangements, title of the product transfers at shipping point and, as a result, the Company determined control transfers at the point of shipment. In more limited cases, there are destination-based shipping terms and, thus, control is deemed to transfer when the products arrive at the customer site. All incremental costs of obtaining a contract are expensed as and when incurred if the expected amortization period of the asset that would have been recognized is one year or less. Shipping and handling costs are included as a component of cost of

sales. In situations where the control of the goods transfers prior to the completion of the Company’s obligation to ship the products to its customers, the Company has elected the practical expedient to account for the shipping services as a fulfillment cost. Accordingly, such costs are recognized when control of the related goods is transferred to the customer. In more rare situations, the Company has revenue associated with products that contain specific customer acceptance criteria and the related revenue is not recognized before the customer acceptance criteria are satisfied. The Company elected to exclude from the measurement of the transaction price all taxes assessed by a governmental authority that are both imposed on and concurrent with specific revenue-producing transactions and collected by the Company from a customer.

Generally, the Company’s contracts for products include a performance obligation related to installation. The Company has determined that the installation represents a distinct performance obligation and revenue is recognized separately upon the completion of installation. The Company determines the amount of the transaction price to allocate to the installation service based on the standalone selling price of the product and the service, which requires judgment. The Company determines relative standalone selling price of installation based upon a number of factors, including hourly service billing rates and estimated installation hours. In developing these estimates, the Company considers past history, competition, billing rates of current services and other factors.

The Company has sales from standalone software, which is included in instrument systems revenue. These arrangements typically include software licenses and maintenance contracts, both of which the Company has determined are distinct performance obligations. The Company determines the amount of the transaction price to allocate to the license and maintenance contract based on the relative standalone selling price of each performance obligation. Software license revenue is recognized at the point in time when control has been transferred to the customer. The revenue allocated to the software maintenance contract is recognized on a straight-line basis over the maintenance period, which is the contractual term of the contract, as a time-based measure of progress best reflects the Company’s performance in satisfying this obligation. Unspecified rights to software upgrades are typically sold as part of the maintenance contract on a when-and-if-available basis.

Payment terms and conditions vary among the Company’s revenue streams, although terms generally include a requirement of payment within 30 to 60 days of product shipment. Prior to providing payment terms to customers, an evaluation of the customer’s credit risk is performed. Returns and customer credits are infrequent and insignificant and are recorded as a reduction to sales. Rights of return are not included in sales arrangements and, therefore, there is minimal variable consideration included in the transaction price of our products.

Service revenue includes (1) service and software maintenance contracts and (2) service calls (time and materials). Instrument service contracts and software maintenance contracts are typically annual contracts, which are billed at the beginning of the contract or maintenance period. The amount of the service and software maintenance contract is recognized on a straight-line basis to revenue over the maintenance service period, which is the contractual term of the contract, as a time-based measure of progress best reflects the Company’s performance in satisfying this obligation. There are no deferred costs associated with the service contract, as the cost of the service is recorded when the service is performed. Service calls are recognized to revenue at the time a service is performed.

The Company’s deferred revenue liabilities on the consolidated balance sheets consists of the obligation on instrument service contracts and customer payments received in advance, prior to transfer of control of the instrument. The Company records deferred revenue primarily related to its service contracts, where consideration is billable at the beginning of the service period.

The following is a summary of the activity of the Company’s deferred revenue and customer advances for the six months ended June 29, 2019 and June 30, 2018 (in thousands):

	June 29, 2019			June 30, 2018
Balance at the beginning of the period	$	204,257		$	192,590
Recognition of revenue included in balance at beginning of the period		(172,949	)		(138,227	)
Revenue deferred during the period, net of revenue recognized		229,162			186,392
Balance at the end of the period	$	260,470		$	240,755

The Company classified $40 million and $39 million of deferred revenue and customer advances in other long-term liabilities at June 29, 2019 and December 31, 2018, respectively.

The amount of deferred revenue and customer advances equals the transaction price allocated to unfulfilled performance obligations for the period presented. Such amounts are expected to be recognized in the future as follows (in thousands):

	June 29, 2019
Deferred revenue and customer advances expected to be recognized in:
One year or less	$	220,711
13-24 months		21,962
25 months and beyond		17,797
Total	$	260,470

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Marketable Securities

6 Months Ended

Jun. 29, 2019

Investments, Debt and Equity Securities [Abstract]

Marketable Securities

3 Marketable Securities

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

	June 29, 2019
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gain		Loss			Value
U.S. Treasury securities	$	66,221	$	4	$	—		$	66,225
Corporate debt securities		94,331		37		(33	)		94,335
Time deposits		57,964		—		—			57,964
Total	$	218,516	$	41	$	(33	)	$	218,524
Amounts included in:
Cash equivalents	$	130,744	$	5	$	—		$	130,749
Investments		87,772		36		(33	)		87,775
Total	$	218,516	$	41	$	(33	)	$	218,524
	December 31, 2018
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gain		Loss			Value
U.S. Treasury securities	$	164,619	$	16	$	(320	)	$	164,315
Foreign government securities		3,486		1		(24	)		3,463
Corporate debt securities		725,778		41		(2,760	)		723,059
Time deposits		108,638		—		—			108,638
Total	$	1,002,521	$	58	$	(3,104	)	$	999,475
Amounts included in:
Cash equivalents	$	60,532	$	—	$	(1	)	$	60,531
Investments		941,989		58		(3,103	)		938,944
Total	$	1,002,521	$	58	$	(3,104	)	$	999,475

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

	June 29, 2019		December 31, 2018
Due in one year or less	$	211,124	$	797,649
Due after one year through three years		7,400		201,826
Total	$	218,524	$	999,475

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Inventories

6 Months Ended

Jun. 29, 2019

Inventory Disclosure [Abstract]

Inventories

4 Inventories

Inventories are classified as follows (in thousands):

	June 29, 2019		December 31, 2018
Raw materials	$	120,601	$	111,641
Work in progress		17,283		15,552
Finished goods		213,668		164,376
Total inventories	$	351,552	$	291,569

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Goodwill and Other Intangibles

6 Months Ended

Jun. 29, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Other Intangibles

5 Goodwill and Other Intangibles

The carrying amount of goodwill was $356 million at both June 29, 2019 and December 31, 2018.

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

	June 29, 2019						December 31, 2018
					Weighted-						Weighted-
	Gross				Average		Gross				Average
	Carrying		Accumulated		Amortization		Carrying		Accumulated		Amortization
	Amount		Amortization		Period		Amount		Amortization		Period
Capitalized software	$	471,701	$	323,030		5 years	$	454,307	$	307,634		5 years
Purchased intangibles		201,442		148,603		11 years		201,566		144,184		11 years
Trademarks and IPR&D		13,691		—		—		13,677		—		—
Licenses		5,581		5,118		6 years		5,568		4,875		6 years
Patents and other intangibles		79,483		51,053		8 years		77,753		49,276		8 years
Total	$	771,898	$	527,804		7 years	$	752,871	$	505,969		7 years

The gross carrying value of both intangible assets and accumulated amortization for intangible assets decreased by $2 million in the six months ended June 29, 2019 due to the effects of foreign currency translation. Amortization expense for intangible assets was $12 million for both the three months ended June 29, 2019 and June 30, 2018. Amortization expense for intangible assets was $25 million for both the six months ended June 29, 2019 and June 30, 2018. Amortization expense for intangible assets is estimated to be $50 million per year for each of the next five years.

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Debt

6 Months Ended

Jun. 29, 2019

Debt Disclosure [Abstract]

Debt

6 Debt

In November 2017, the Company entered into a credit agreement (the “2017 Credit Agreement”) that provides for a $1.5 billion revolving facility and a $300 million term loan. The revolving facility and term loan both mature on November 30, 2022 and require no scheduled prepayments before that date.

The interest rates applicable to the 2017 Credit Agreement are, at the Company’s option, equal to either the alternate base rate (which is a rate per annum equal to the greatest of (1) the prime rate in effect on such day, (2) the Federal Reserve Bank of New York Rate on such day plus 1/2 of 1% per annum and (3) 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 or EURIBO rate for Euro-denominated loans, in each case, plus an interest rate margin based upon the Company’s leverage ratio, which can range between 0 and 12.5 basis points for alternate base rate loans and between 80 and 112.5 basis points for LIBO rate or EURIBO rate loans. The facility fee on the 2017 Credit Agreement ranges between 7.5 and 25 basis points per annum, based on the leverage ratio, of the amount of the revolving facility commitments and the outstanding term loan. The 2017 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 2017 Credit Agreement includes negative covenants, affirmative covenants, representations and warranties and events of default that are customary for investment grade credit facilities.

As of both June 29, 2019 and December 31, 2018, the Company had a total of $560 million of outstanding senior unsecured notes. 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.

In February 2019, certain defined terms related to the subsidiary guarantors were amended in the 2017 Credit Agreement and senior unsecured note agreements. In addition, the Company amended the senior unsecured note agreements to allow the Company to elect an increase in the permitted leverage ratio from 3.50:1 to 4.0:1, for a period of three consecutive quarters, for a material acquisition of $400 million or more. During the period of time where the leverage ratio exceeds 3.50:1, the interest payable on the senior unsecured notes shall increase by 0.50%. The debt covenants in the senior unsecured note agreements were also modified to address the change in accounting guidance for leases.

In 2018, the Company entered into three-year interest rate cross-currency swap derivative agreements with an aggregate notional value of $300 million to hedge the variability in the movement of foreign currency exchange rates on a portion of its Euro-denominated net asset investments. In 2019, the Company entered into additional interest rate cross-currency swap derivative agreements with an aggregate notional value of $110  million and contract terms between one and three years. See Note 1, “Basis of Presentation and Summary of Significant Accounting Policies.”

The Company had the following outstanding debt at June 29, 2019 and December 31, 2018 (in thousands):

	June 29, 2019			December 31, 2018
Foreign subsidiary lines of credit	$	295		$	178
Senior unsecured notes - Series B - 5.00%, due February 2020		100,000			—
Total notes payable and debt, current		100,295			178
Senior unsecured notes - Series B - 5.00%, due February 2020		—			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			50,000
Senior unsecured notes - Series K - 3.44%, due May 2026		160,000			160,000
Credit agreement		590,000			590,000
Unamortized debt issuance costs		(1,606	)		(1,828	)
Total long-term debt		1,048,394			1,148,172
Total debt	$	1,148,689		$	1,148,350

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

As of both June 29, 2019 and December 31, 2018, the Company had a total amount available to borrow under the 2017 Credit Agreement of $1,208 million after outstanding letters of credit. The weighted-average interest rates applicable to the senior unsecured notes and credit agreement borrowings collectively were 3.74% and 3.83% at June 29, 2019 and December 31, 2018, respectively. As of June 29, 2019, the Company was in compliance with all debt covenants.

The Company and its foreign subsidiaries also had available short-term lines of credit totaling $106 million and $90 million at June 29, 2019 and December 31, 2018, respectively, for the purpose of short-term borrowing and issuance of commercial guarantees. The weighted-average interest rates applicable to these short-term borrowings were 1.48% and 1.88% for June 29, 2019 and December 31, 2018, respectively.

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Income Taxes

6 Months Ended

Jun. 29, 2019

Income Tax Disclosure [Abstract]

Income Taxes

7 Income Taxes

The four principal jurisdictions in which the Company manufactures are the U.S., Ireland, the U.K. and Singapore, where the statutory tax rates are 21%, 12.5%, 19% and 17%, respectively, as of June 29, 2019. The Company has a contractual tax rate of 0% on qualifying activities in Singapore through March 2021, based upon the achievement of certain contractual milestones, which the Company expects to meet. The effect of applying the contractual tax rate rather than the statutory tax rate to income from qualifying activities in Singapore increased the Company’s net income for the six months ended June 29, 2019 and June 30, 2018 by $9 million and $13 million, respectively, and increased the Company’s net income per diluted share by $0.13 and $0.17, respectively.

The Company’s effective tax rate for the three months ended June 29, 2019 and June 30, 2018 was 15.9% and 10.8%, respectively. The increase in the effective income tax rate can be attributed to a $9 million reduction in the three months ended June 30, 2018 income tax expense related to the change in foreign currency exchange rates on the earnings taxed in December 2017 under the toll charge of the 2017 Tax Act and an additional $1 million tax benefit related to stock-based compensation. This reduction in income tax expense decreased the effective tax rate by 5.6 percentage points for the three months ended June 30, 2018. The remaining differences between the effective tax rates can primarily be attributed to differences in the proportionate amounts of pre-tax income recognized in jurisdictions with different effective tax rates.

The Company’s effective tax rate for the six months ended June 29, 2019 and June 30, 2018 was 12.4% and 15.1%, respectively. The effective tax rate for the six months ended June 29, 2019 includes a $3 million income tax benefit related to the finalization of certain regulations relating to the Tax Cuts and Jobs Act (the “2017 Tax Act”). This

income tax benefit decreased the effective tax rate by 1.0 percentage points for the six months ended June 29, 2019. The effective tax rate for the six months ended June 30, 2018 includes $4 million of additional income tax expense related to the change in foreign currency exchange rates on the earnings taxed in December 2017 under the toll charge of the 2017 Tax Act. This additional income tax expense increased the effective tax rate by 1.3 percentage points for the six months ended June 30, 2018. The remaining differences between the effective tax rates can primarily be attributed to differences in the proportionate amounts of pre-tax income recognized in jurisdictions with different effective tax rates.

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

The following is a summary of the activity of the Company’s uncertain tax positions for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	June 29, 2019			June 30, 2018
Balance at the beginning of the period	$	26,108		$	5,843
Net reductions for lapse of statutes taken during the period		(105	)		(191	)
Net additions for tax positions taken during the current period		801			408
Balance at the end of the period	$	26,804		$	6,060

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, 2013. However, carryforward tax attributes that were generated in years beginning on or before January 1, 2014 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 June 29, 2019, the Company expects to record additional reductions in the measurement of its unrecognized tax benefits and related net interest and penalties of less than $1 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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Leases

6 Months Ended

Jun. 29, 2019

Leases [Abstract]

Leases of Lessee Disclosure [Text Block]

8 Leases

The Company adopted new accounting guidance regarding the accounting for leases as of January 1, 2019 using a modified retrospective transition approach that was applied to leases existing as of, or entered into after, January 1, 2019. The Company elected the package of transition provisions available for expired or existing contracts, which allowed the Company to carryforward historical assessments of (1) whether contracts are or contain leases, (2) lease classification and (3) initial direct costs. Upon adoption, the Company recorded a right-of-use lease asset and lease liabilities in the amount $100 million as of January 1, 2019. The adoption of this standard did not have a material impact on the Company’s results of operations, cash flows and retained earnings.

Prior to the adoption of the new lease accounting standard, undiscounted future minimum rents payable as of December 31, 2018 under non-cancelable leases with initial terms exceeding one year were as follows (in thousands):

2019	$	28,417
2020		23,424
2021		16,032
2022		11,816
2023 and thereafter		23,269
Total future minimum lease payments	$	102,958

The Company’s right-of-use lease assets and lease liabilities included in the consolidated balance sheets are classified as follows (in thousands):

	Financial Statement Classification	June 29, 2019
Assets:
Property operating lease assets	Operating lease assets	$	61,646
Automobile operating lease assets	Operating lease assets		27,217
Equipment operating lease assets	Operating lease assets		2,197
Total lease assets		$	91,060
Liabilities:
Current operating lease liabilities	Current operating lease liabilities	$	25,106
Long-term operating lease liabilities	Long-term operating lease liabilities		66,713
Total lease liabilities		$	91,819

Undiscounted future minimum rents payable as of June 29, 2019 under non-cancelable leases with initial terms exceeding one year reconcile to lease liabilities included in the consolidated balance sheet as follows (in thousands):

2019 (remaining 6 months)	$	14,291
2020		24,596
2021		16,296
2022		10,462
2023		5,875
2024 and thereafter		31,161
Total future minimum lease payments		102,681
Less: amount of lease payments representing interest		(10,862	)
Present value of future minimum lease payments		91,819
Less: current operating lease liabilities		(25,106	)
Long-term operating lease liabilities	$	66,713

The Company’s operating leases consist of property leases for sales, demonstration, laboratory, warehouse and office spaces, automotive leases for sales and service personnel and equipment leases, primarily used in our manufacturing and distribution operations. The lease policies described below were effective as of January 1, 2019. For leases with terms greater than 12 months, the Company recorded the related right-of-use asset and lease liability obligation at the present value of lease payments over the term of the leases. Some of the Company’s leases include rental escalation clauses, renewal options and/or termination options that are factored into our determination of lease payments. A certain number of these leases contain rent escalation clauses, either fixed or adjusted periodically for inflation of market rates, that are factored into the Company’s determination of lease payments. The Company also has variable lease payments that do not depend on a rate or index, primarily for items such as common area maintenance and real estate taxes, which are recorded as variable costs when incurred.

In addition, the Company’s lease agreements that contain lease and non-lease components are generally accounted for as a single lease component. The Company has elected not to apply the recognition requirements of the new accounting guidance to leases with terms less than 12 months. For these leases, the Company recognizes lease payments in net income on a straight-line basis over the term of the lease. As of June 29, 2019 and December 31, 2018, the Company does not have leases that are classified as finance leases.

When available, the Company uses the rate implicit in the lease to discount lease payments to determine the present value of the lease liabilities; however, most of the leases do not provide a readily determinable implicit rate and, as required by the accounting guidance, the Company estimated its incremental secured borrowing rate to discount the lease payments based on information available at lease commencement (or, for the leases in existence on the adoption date, the January 1, 2019 information). The Company’s incremental borrowing rate reflects the estimated rate of interest that the Company would pay to borrow on a collateralized basis over a similar term to the lease payments in a similar economic environment.

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Stock-Based Compensation

6 Months Ended

Jun. 29, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation

9 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 and performance 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. Forfeitures are 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 ended June 29, 2019 and June 30, 2018 include the following stock-based compensation expense related to stock option awards, restricted stock awards, restricted stock unit awards, performance stock unit awards and the employee stock purchase plan (in thousands):

	Three Months Ended				Six Months Ended
	June 29, 2019		June 30, 2018		June 29, 2019		June 30, 2018
Cost of sales	$	567	$	603	$	1,142	$	1,208
Selling and administrative expenses		7,402		7,639		15,527		16,123
Research and development expenses		1,345		837		2,586		1,640
Total stock-based compensation	$	9,314	$	9,079	$	19,255	$	18,971

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 ended June 29, 2019 and June 30, 2018 are as follows:

	Six Months Ended
Options Issued and Significant Assumptions Used to Estimate Option Fair Values	June 29, 2019			June 30, 2018
Options issued in thousands		139			140
Risk-free interest rate		2.5	%		2.7	%
Expected life in years		5			6
Expected volatility		24.3	%		23.2	%
Expected dividends		—			—

	Six Months Ended
Weighted-Average Exercise Price and Fair Value of Options on the Date of Grant	June 29, 2019		June 30, 2018
Exercise price	$	231.30	$	205.97
Fair value	$	61.85	$	58.26

The following table summarizes stock option activity for the plans for the six months ended June 29, 2019 (in thousands, except per share data):

	Number of Shares			Exercise Price per Share					Weighted-Average Exercise Price per Share
Outstanding at December 31, 2018		1,790		$	38.09	to	$	208.47	$	142.47
Granted		139		$	183.41	to	$	238.52	$	231.30
Exercised		(239	)	$	38.09	to	$	208.47	$	110.07
Canceled		(56	)	$	113.36	to	$	194.26	$	153.14
Outstanding at June 29, 2019		1,634		$	61.63	to	$	238.52	$	154.40

Restricted Stock

During the six months ended June 29, 2019, the Company granted five thousand shares of restricted stock. The weighted-average fair value per share of these awards on the grant date was $183.41.

Restricted Stock Units

The following table summarizes the unvested restricted stock unit award activity for the six months ended June 29, 2019 (in thousands, except per share data):

	Shares			Weighted-Average Fair Value per Share
Unvested at December 31, 2018		304		$	153.31
Granted		83		$	236.28
Vested		(103	)	$	138.61
Forfeited		(15	)	$	167.10
Unvested at June 29, 2019		269		$	183.77

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

Performance Stock Units

The Company’s performance stock units are equity compensation awards with a market vesting condition based on the Company’s Total Shareholder Return (“TSR”) relative to the TSR of the components of the S&P Health Care Index. TSR is the change in value of a stock price over time, including the reinvestment of dividends. The vesting schedule ranges from 0% to 200% of the target shares awarded.

In determining the fair value of the performance stock units, the Company makes a variety of assumptions and estimates, including volatility measures, expected yields and expected terms. The fair value of each performance stock unit grant was estimated on the date of grant using the Monte Carlo simulation 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 the performance period of the underlying performance stock units. 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 Monte Carlo simulation model. The correlation coefficient is used to model the way in which each company in the S&P Health Care Index tends to move in relation to each other during the performance period. The relevant data used to determine the value of the performance stock units granted during the six months ended June 29, 2019 and June 30, 2018 are as follows: 

	Six Months Ended
Performance Stock Units Issued and Significant Assumptions Used to Estimate Fair Values	June 29, 2019			June 30, 2018
Performance stock units issued (in thousands)		13			16
Risk-free interest rate		2.4	%		2.0	%
Expected life in years		2.8			2.8
Expected volatility		23.5	%		23.4	%
Average volatility of peer companies		26.2	%		25.8	%
Correlation coefficient		34.2	%		37.2	%
Expected dividends		—			—

The following table summarizes the unvested performance stock unit award activity for the six months ended June 29, 2019 (in thousands, except per share data):

	Shares			Weighted-Average Fair Value per Share
Unvested at December 31, 2018		100		$	212.34
Granted		13		$	372.68
Forfeited		(6	)	$	208.58
Unvested at June 29, 2019		107		$	232.79

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Earnings Per Share

6 Months Ended

Jun. 29, 2019

Earnings Per Share [Abstract]

Earnings Per Share

10 Earnings Per Share

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

	Three Months Ended June 29, 2019
	Net Income		Weighted- Average Shares		Per Share
	(Numerator)		(Denominator)		Amount
Net income per basic common share	$	144,410		68,989	$	2.09
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		505		(0.01	)
Net income per diluted common share	$	144,410		69,494	$	2.08
	Three Months Ended June 30, 2018
	Net Income		Weighted- Average Shares		Per Share
	(Numerator)		(Denominator)		Amount
Net income per basic common share	$	155,677		77,833	$	2.00
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		605		(0.02	)
Net income per diluted common share	$	155,677		78,438	$	1.98
	Six Months Ended June 29, 2019
	Net Income		Weighted- Average Shares		Per Share
	(Numerator)		(Denominator)		Amount
Net income per basic common share	$	253,396		70,331	$	3.60
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		573		(0.03	)
Net income per diluted common share	$	253,396		70,904	$	3.57

	Six Months Ended June 30, 2018
	Net Income		Weighted- Average Shares		Per Share
	(Numerator)		(Denominator)		Amount
Net income per basic common share	$	267,628		78,330	$	3.42
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		711		(0.03	)
Net income per diluted common share	$	267,628		79,041	$	3.39

For both the three and six months ended June 29, 2019 and the three and six months ended June 30, 2018, the Company had 0.1 million stock options that were antidilutive due to having higher exercise prices than the Company’s average stock price during the period. 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

Jun. 29, 2019

Equity [Abstract]

Accumulated Other Comprehensive Income

11 Accumulated Other Comprehensive Income

The components of accumulated other comprehensive income (loss) 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, 2018	$	(105,697	)	$	(9,869	)	$	(2,405	)	$	(117,971	)
Other comprehensive income, net of tax		491			34			2,350			2,875
Balance at June 29, 2019	$	(105,206	)	$	(9,835	)	$	(55	)	$	(115,096	)

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Retirement Plans

6 Months Ended

Jun. 29, 2019

Retirement Benefits [Abstract]

Retirement Plans

12 Retirement Plans

The Company sponsors various retirement plans. The components of net periodic benefit cost other than the service cost component are included in other expense in the consolidated statements of operations. The summary of the components of net periodic pension costs for the plans for the three and six months ended June 29, 2019 and June 30, 2018 is as follows (in thousands):

	Three Months Ended
	June 29, 2019								June 30, 2018
	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	$	—	$	108		$	1,075		$	142		$	151		$	1,339
Interest cost		10		230			430			1,627			162			416
Expected return on plan assets		—		(177	)		(538	)		(630	)		(175	)		(481	)
Net amortization:
Prior service credit		—		(5	)		(37	)		—			(2	)		(32	)
Net actuarial loss		—		—			132			772			—			171
Net periodic pension cost	$	10	$	156		$	1,062		$	1,911		$	136		$	1,413

	Six Months Ended
	June 29, 2019								June 30, 2018
	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	$	—	$	250		$	2,157		$	284		$	283		$	2,713
Interest cost		23		389			864			3,246			318			844
Expected return on plan assets		—		(354	)		(1,081	)		(3,415	)		(353	)		(974	)
Net amortization:
Prior service credit		—		(10	)		(74	)		—			(10	)		(63	)
Net actuarial loss		—		—			267			1,541			—			348
Net periodic pension cost	$	23	$	275		$	2,133		$	1,656		$	238		$	2,868

In 2018, the Company terminated and settled its frozen U.S. defined benefit pension plan, the Waters Retirement Plan, by making lump-sum cash payments and purchasing annuity contracts for participants to permanently extinguish the pension plan’s obligations. The Company also anticipates that it will settle the Waters Retirement Restoration Plan during 2019, and the Company may incur pension accounting charges in connection with the termination of this plan.

During fiscal year 2019, the Company expects to contribute a total of approximately $3 million to $6 million to the Company’s defined benefit plans.

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Business Segment Information

6 Months Ended

Jun. 29, 2019

Segment Reporting [Abstract]

Business Segment Information

13 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: WatersTM and TATM.

The Waters operating segment is primarily in the business of designing, manufacturing, selling and servicing LC and MS instruments, columns and other precision 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, selling 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 ended June 29, 2019 and June 30, 2018 (in thousands):

	Three Months Ended				Six Months Ended
	June 29, 2019		June 30, 2018		June 29, 2019		June 30, 2018
Product net sales:
Waters instrument systems	$	238,777	$	239,928	$	423,389	$	438,031
Chemistry consumables		100,292		99,129		199,545		197,839
TA instrument systems		48,196		49,812		84,834		92,116
Total product sales		387,265		388,869		707,768		727,986
Service net sales:
Waters service		192,048		188,248		368,097		362,581
TA service		19,849		19,102		37,159		36,322
Total service sales		211,897		207,350		405,256		398,903
Total net sales	$	599,162	$	596,219	$	1,113,024	$	1,126,889

Net sales are attributable to geographic areas based on the region of destination. Geographic sales information is presented below for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Three Months Ended				Six Months Ended
	June 29, 2019		June 30, 2018		June 29, 2019		June 30, 2018
Net Sales:
Asia:
China	$	112,796	$	109,709	$	202,887	$	203,537
Japan		45,958		43,183		89,462		85,948
Asia Other		80,081		84,013		146,998		147,700
Total Asia		238,835		236,905		439,347		437,185
Americas:
United States		173,940		161,485		323,097		308,306
Americas Other		32,835		36,641		65,546		71,530
Total Americas		206,775		198,126		388,643		379,836
Europe		153,552		161,188		285,034		309,868
Total net sales	$	599,162	$	596,219	$	1,113,024	$	1,126,889

Net sales by customer class are as follows for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Three Months Ended				Six Months Ended
	June 29, 2019		June 30, 2018		June 29, 2019		June 30, 2018
Pharmaceutical	$	350,145	$	338,354	$	644,657	$	643,682
Industrial		176,109		183,664		331,327		345,994
Academic and governmental		72,908		74,201		137,040		137,213
Total net sales	$	599,162	$	596,219	$	1,113,024	$	1,126,889

Net sales for the Company recognized at a point in time versus over time are as follows for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Three Months Ended				Six Months Ended
	June 29, 2019		June 30, 2018		June 29, 2019		June 30, 2018
Net sales recognized at a point in time:
Instrument systems	$	286,973	$	289,740	$	508,223	$	530,147
Chemistry consumables		100,292		99,129		199,545		197,839
Service sales recognized at a point in time (time & materials)		84,807		80,397		157,566		152,915
Total net sales recognized at a point in time		472,072		469,266		865,334		880,901
Net sales recognized over time:
Service and software maintenance sales recognized over time (contracts)		127,090		126,953		247,690		245,988
Total net sales	$	599,162	$	596,219	$	1,113,024	$	1,126,889

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Recent Accounting Standard Changes and Developments

6 Months Ended

Jun. 29, 2019

Accounting Changes and Error Corrections [Abstract]

Recent Accounting Standard Changes and Developments

14 Recent Accounting Standard Changes and Developments

Recently Adopted Accounting Standards

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 requires lessees to present the assets and liabilities that arise from leases on their balance sheets. This guidance was effective for annual and interim reporting periods beginning after December 15, 2018. The Company has adopted this standard using a modified retrospective transition approach to be applied to leases existing as of, or entered into after, January 1, 2019. The adoption of this standard did have a material effect on the Company’s balance sheet by recording a right-of-use lease asset and lease liabilities in the amount $100 million as of January 1, 2019; however, it did not have a material impact on the Company’s results of operations, cash flows and retained earnings.

In March 2017, accounting guidance was issued to amend the amortization period for certain purchased callable debt securities held at a premium. Specifically, the amortization period for certain callable debt securities was shortened to end at the earliest call date. This guidance was effective for annual and interim periods beginning after December 15, 2018. The Company adopted this standard as of January 1, 2019 and the adoption of this standard did not have a material impact on the Company’s financial position, results of operations and cash flows.

In February 2018, accounting guidance was issued to address the impact of the 2017 Tax Act on items recorded in accumulated other comprehensive income. Current accounting guidance requires deferred tax liabilities and assets to be adjusted for the effect of a change in tax laws or rates with the effect recorded in income from continuing operations, even if the related tax effects were originally recognized in other comprehensive income, the new guidance allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the 2017 Tax Act. This guidance was effective for annual and interim periods beginning after December 15, 2018. The Company adopted this standard as of January 1, 2019 and the adoption of this standard did not have a material impact on the Company’s financial position, results of operations and cash flows.

In August 2018, accounting guidance was issued to address the capitalization of implementation costs associated with hosting arrangements that meet the definition of a service contract. The new guidance clarified that the internal-use software capitalization guidance should be used to determine when implementation costs are capitalizable. This guidance is effective for annual and interim periods beginning after December 15, 2019 and early adoption is permitted. The Company elected to prospectively adopt this guidance as of January 1, 2019 and the adoption of this standard did not have a material impact on the Company’s financial position, results of operations and cash flows.

Recently Issued Accounting Standards

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 has occurred. 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 currently does not expect that the adoption of this standard will have a material effect on the Company’s financial position, results of operations and cash flows.

In January 2017, accounting guidance was issued that simplifies the accounting for goodwill impairment. The guidance eliminates step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. This guidance is effective for annual and interim periods beginning after December 15, 2019 and early adoption is permitted. The Company currently does not expect that the adoption of this standard will have a material effect on the Company’s financial position, results of operations and cash flows.

In August 2018, accounting guidance was issued that modifies the disclosure requirements of fair value measurements. The amendments remove disclosures that are no longer considered cost beneficial, clarify the specific requirements of disclosure and add disclosure requirements identified as relevant. This guidance is effective for annual and interim periods beginning after December 15, 2019 and early adoption is permitted. The Company does not expect that the adoption of this standard will have a material impact on the Company’s financial position, results of operations and cash flows.

In August 2018, accounting guidance was issued that modifies the disclosure requirements of retirement benefit plans. The amendments remove disclosures that are no longer considered cost beneficial, clarify the specific requirements of disclosure and add disclosure requirement identified as relevant. This guidance is effective for annual and interim periods beginning after December 15, 2020 and early adoption is permitted. The Company does not expect that the adoption of this standard will have a material impact 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

Jun. 29, 2019

Accounting Policies [Abstract]

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 may have more or less than thirteen complete weeks. The Company’s second fiscal quarters for 2019 and 2018 ended on June 29, 2019 and June 30, 2018, 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 footnote disclosures required for annual financial statements prepared in accordance with 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/A for the year ended December 31, 2018, as filed with the U.S. Securities and Exchange Commission (“SEC”) on March 1, 2019.

Principles of Consolidation

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

Use of Estimates

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

Translation of Foreign Currencies

Translation of Foreign Currencies

The functional currency of each of the Company’s foreign operating subsidiaries is the local currency of its country of domicile, 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.

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 respective period. Any resulting translation gains or losses are included in accumulated other comprehensive income in the consolidated balance sheets.

Cash, Cash Equivalents and Investments

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 June 29, 2019 and December 31, 2018, $421 million out of $676 million and $471 million out of $1,735 million, respectively, of the Company’s total cash, cash equivalents and investments were held by foreign subsidiaries. In addition, $256 million out of $676 million and $251 million out of $1,735 million of cash, cash equivalents and investments were held in currencies other than the U.S. dollar at June 29, 2019 and December 31, 2018, respectively.

Accounts Receivable and Allowance for Doubtful Accounts

Accounts Receivable and Allowance for Doubtful Accounts

Trade accounts receivable are recorded at the invoiced amount and do not bear interest. The Company has very limited use of rebates and other cash considerations payable to customers and, as a result, the transaction price determination does not have any material variable consideration. The allowance for doubtful accounts is the best estimate of the amount of probable credit losses in the existing accounts receivable. The allowance is based on a number of factors, including historical experience and the customer’s credit-worthiness. The allowance for doubtful accounts is reviewed on at least a quarterly basis. Past due balances over 90 days and over a specified amount are reviewed individually for collectibility. Account balances are charged against the allowance when the Company determines it is probable that the receivable will not be recovered. The Company does not have any off-balance sheet credit exposure related to its customers. Historically, the Company has not experienced significant bad debt losses.

The following is a summary of the activity of the Company’s allowance for doubtful accounts for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Balance at							Balance at
	Beginning							End of
	of Period		Additions		Deduction			Period
Allowance for Doubtful Accounts
June 29, 2019	$	7,663	$	3,793	$	(3,426	)	$	8,030
June 30, 2018	$	6,109	$	1,825	$	(1,778	)	$	6,156

Income Taxes

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

Other Investments

Other Investments

During the six months ended June 29, 2019 and June 30, 2018, the Company made investments in unaffiliated companies of $5 million and $3 million, respectively.

Fair Value Measurements

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 June 29, 2019 and December 31, 2018. 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 June 29, 2019 (in thousands):

			Quoted Prices
			in Active		Significant
			Markets		Other		Significant
	Total at		for Identical		Observable		Unobservable
	June 29,		Assets		Inputs		Inputs
	2019		(Level 1)		(Level 2)		(Level 3)
Assets:
U.S. Treasury securities	$	66,225	$	—	$	66,225	$	—
Corporate debt securities		94,335		—		94,335		—
Time deposits		57,964		—		57,964		—
Waters 401(k) Restoration Plan assets		33,278		33,278		—		—
Foreign currency exchange contracts		164		—		164		—
Interest rate cross-currency swap agreements		1,098		—		1,098		—
Total	$	253,064	$	33,278	$	219,786	$	—
Liabilities:
Contingent consideration	$	2,707	$	—	$	—	$	2,707
Foreign currency exchange contracts		292		—		292		—
Total	$	2,999	$	—	$	292	$	2,707

The following table represents the Company’s assets and liabilities measured at fair value on a recurring basis at December 31, 2018 (in thousands):

			Quoted Prices
			in Active		Significant
			Markets		Other		Significant
	Total at		for Identical		Observable		Unobservable
	December 31,		Assets		Inputs		Inputs
	2018		(Level 1)		(Level 2)		(Level 3)
Assets:
U.S. Treasury securities	$	164,315	$	—	$	164,315	$	—
Foreign government securities		3,463		—		3,463		—
Corporate debt securities		723,059		—		723,059		—
Time deposits		108,638		—		108,638		—
Waters 401(k) Restoration Plan assets		33,104		33,104		—		—
Foreign currency exchange contracts		503		—		503		—
Interest rate cross-currency swap agreements		1,093				1,093
Total	$	1,034,175	$	33,104	$	1,001,071	$	—
Liabilities:
Contingent consideration	$	2,476	$	—	$	—	$	2,476
Foreign currency exchange contracts		224		—		224		—
Total	$	2,700	$	—	$	224	$	2,476

Fair Value of 401(k) Restoration Plan Assets

The 401(k) Restoration Plan is a nonqualified defined contribution plan and the assets were held in registered mutual funds and have been classified as Level 1. The fair values of the assets in the plan are determined through market and observable sources from daily quoted prices on nationally recognized securities exchanges.

Fair Value of Cash Equivalents, Investments, Foreign Currency Exchange Contracts and Interest Rate Cross-Currency Swap Agreements

The fair values of the Company’s cash equivalents, investments 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.

Fair Value of Contingent Consideration

The fair value of the Company’s liability for contingent consideration relates to earnout payments in connection with 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 $3 million and $2 million at June 29, 2019 and December 31, 2018, respectively, based on the Company’s best estimate, as the earnout is based on future sales of certain products, some of which are currently in development, through 2034.

Fair Value of Other Financial Instruments

The Company’s 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 $510 million at both June 29, 2019 and December 31, 2018, 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 $512 million and $502 million at June 29, 2019 and December 31, 2018, respectively, using Level 2 inputs.

Derivative Transactions

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 strategies in managing exposures to changes in foreign currency exchange rates are to (1) 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 and (2) mitigate foreign exchange risk exposure of international operations by hedging the variability in the movement of foreign currency exchange rates on a portion of its Euro-denominated net asset investments. The Company presents the derivative transactions in financing activities in the statement of cash flows.

Foreign Currency Exchange Contracts

The Company does not specifically enter into any derivatives that hedge foreign-currency-denominated operating 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, Mexican peso and Brazilian real.

Interest Rate Cross-Currency Swap Agreements

In 2018, the Company entered into three-year interest rate cross-currency swap derivative agreements with an aggregate notional value of $300 million to hedge the variability in the movement of foreign currency exchange rates on a portion of its Euro-denominated net asset investments. In 2019, the Company entered into additional interest rate cross-currency swap derivative agreements with an aggregate notional value of $110 million and contract terms between one and three years. Under hedge accounting, the change in fair value of the derivative that relates to changes in the foreign currency spot rate are recorded in the currency translation adjustment in other comprehensive income and remain in accumulated comprehensive income in stockholders’ equity until the sale or substantial liquidation of the foreign operation. The difference between the interest rate received and paid under the interest rate cross-currency swap derivative agreement is recorded in interest income in the statement of operations.

The Company’s foreign currency exchange contracts and interest rate cross-currency swap agreements included in the consolidated balance sheets are classified as follows (in thousands):

	June 29, 2019					December 31, 2018
	Notional Value		Fair Value			Notional Value		Fair Value
Foreign currency exchange contracts:
Other current assets	$	31,270	$	164		$	112,212	$	503
Other current liabilities	$	124,346	$	292		$	40,175	$	224
Interest rate cross-currency swap agreements:
Other assets	$	410,000	$	1,098		$	300,000	$	1,093
Accumulated other comprehensive income			$	(1,098	)			$	(1,093	)

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

	Financial	Three Months Ended						Six Months Ended
	Statement	June 29, 2019			June 30, 2018			June 29, 2019			June 30, 2018
	Classification
Foreign currency exchange contracts:
Realized gains (losses) on closed contracts	Cost of sales	$	136		$	(4,096	)	$	(407	)	$	(2,158	)
Unrealized losses on open contracts	Cost of sales		(3,044	)		(105	)		(2,518	)		(1,092	)
Cumulative net pre-tax losses	Cost of sales	$	(2,908	)	$	(4,201	)	$	(2,925	)	$	(3,250	)
Interest rate cross-currency swap agreements:
Interest earned	Interest income	$	2,923		$	—		$	5,150		$	—
Unrealized (losses) gains
on open contracts	Stockholders’ equity	$	(6,022	)	$	—		$	1,098		$	—

Stockholders' Equity

Stockholders’ Equity

In January 2019, the Company’s Board of Directors authorized the Company to repurchase up to $4 billion of its outstanding common stock over a two-year period. This new program replaced the remaining amounts available from the pre-existing program. During the six months ended June 29, 2019 and June 30, 2018, the Company repurchased 5.9 million and 2.7 million shares of the Company’s outstanding common stock at a cost of $1.3 billion and $546 million, respectively, under the January 2019 authorization and other previously announced programs. As of June 29, 2019, the Company had repurchased an aggregate of 5.1 million shares at a cost of $1.2 billion under the January 2019 repurchase program and had a total of $2.8 billion authorized for future repurchases. In addition, the Company repurchased $8 million of common stock related to the vesting of restricted stock units during both the six months ended June 29, 2019 and June 30, 2018, respectively. The Company believes that it has the financial flexibility to fund these share repurchases given current cash levels and debt borrowing capacity, as well as to invest in research, technology and business acquisitions.

As of June 29, 2019, the Company accrued $10 million as a result of treasury stock purchases that were settled in the third quarter of 2019.

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.

The following is a summary of the activity of the Company’s accrued warranty liability for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Balance at							Balance at
	Beginning		Accruals for		Settlements			End of
	of Period		Warranties		Made			Period
Accrued warranty liability:
June 29, 2019	$	12,300	$	3,571	$	(4,288	)	$	11,583
June 30, 2018	$	13,026	$	3,588	$	(4,115	)	$	12,499

Stock-based Compensation

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. Forfeitures are 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.

Performance Stock Units

The Company’s performance stock units are equity compensation awards with a market vesting condition based on the Company’s Total Shareholder Return (“TSR”) relative to the TSR of the components of the S&P Health Care Index. TSR is the change in value of a stock price over time, including the reinvestment of dividends. The vesting schedule ranges from 0% to 200% of the target shares awarded.

In determining the fair value of the performance stock units, the Company makes a variety of assumptions and estimates, including volatility measures, expected yields and expected terms. The fair value of each performance stock unit grant was estimated on the date of grant using the Monte Carlo simulation 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 the performance period of the underlying performance stock units. 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 Monte Carlo simulation model. The correlation coefficient is used to model the way in which each company in the S&P Health Care Index tends to move in relation to each other during the performance period

Earnings Per Share

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

Retirement Plans

The Company sponsors various retirement plans. The components of net periodic benefit cost other than the service cost component are included in other expense in the consolidated statements of operations.

New Accounting Pronouncements

Recently Adopted Accounting Standards

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 requires lessees to present the assets and liabilities that arise from leases on their balance sheets. This guidance was effective for annual and interim reporting periods beginning after December 15, 2018. The Company has adopted this standard using a modified retrospective transition approach to be applied to leases existing as of, or entered into after, January 1, 2019. The adoption of this standard did have a material effect on the Company’s balance sheet by recording a right-of-use lease asset and lease liabilities in the amount $100 million as of January 1, 2019; however, it did not have a material impact on the Company’s results of operations, cash flows and retained earnings.

In March 2017, accounting guidance was issued to amend the amortization period for certain purchased callable debt securities held at a premium. Specifically, the amortization period for certain callable debt securities was shortened to end at the earliest call date. This guidance was effective for annual and interim periods beginning after December 15, 2018. The Company adopted this standard as of January 1, 2019 and the adoption of this standard did not have a material impact on the Company’s financial position, results of operations and cash flows.

In February 2018, accounting guidance was issued to address the impact of the 2017 Tax Act on items recorded in accumulated other comprehensive income. Current accounting guidance requires deferred tax liabilities and assets to be adjusted for the effect of a change in tax laws or rates with the effect recorded in income from continuing operations, even if the related tax effects were originally recognized in other comprehensive income, the new guidance allows a reclassification from accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the 2017 Tax Act. This guidance was effective for annual and interim periods beginning after December 15, 2018. The Company adopted this standard as of January 1, 2019 and the adoption of this standard did not have a material impact on the Company’s financial position, results of operations and cash flows.

In August 2018, accounting guidance was issued to address the capitalization of implementation costs associated with hosting arrangements that meet the definition of a service contract. The new guidance clarified that the internal-use software capitalization guidance should be used to determine when implementation costs are capitalizable. This guidance is effective for annual and interim periods beginning after December 15, 2019 and early adoption is permitted. The Company elected to prospectively adopt this guidance as of January 1, 2019 and the adoption of this standard did not have a material impact on the Company’s financial position, results of operations and cash flows.

Recently Issued Accounting Standards

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 has occurred. 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 currently does not expect that the adoption of this standard will have a material effect on the Company’s financial position, results of operations and cash flows.

In January 2017, accounting guidance was issued that simplifies the accounting for goodwill impairment. The guidance eliminates step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. This guidance is effective for annual and interim periods beginning after December 15, 2019 and early adoption is permitted. The Company currently does not expect that the adoption of this standard will have a material effect on the Company’s financial position, results of operations and cash flows.

In August 2018, accounting guidance was issued that modifies the disclosure requirements of fair value measurements. The amendments remove disclosures that are no longer considered cost beneficial, clarify the specific requirements of disclosure and add disclosure requirements identified as relevant. This guidance is effective for annual and interim periods beginning after December 15, 2019 and early adoption is permitted. The Company does not expect that the adoption of this standard will have a material impact on the Company’s financial position, results of operations and cash flows.

In August 2018, accounting guidance was issued that modifies the disclosure requirements of retirement benefit plans. The amendments remove disclosures that are no longer considered cost beneficial, clarify the specific requirements of disclosure and add disclosure requirement identified as relevant. This guidance is effective for annual and interim periods beginning after December 15, 2020 and early adoption is permitted. The Company does not expect that the adoption of this standard will have a material impact on the Company’s financial position, results of operations and cash flows.

Revenue Recognition

2 Revenue Recognition

The Company recognizes revenue upon transfer of control of promised products and services to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products or services. The Company generally enters into contracts that include a combination of products and services. Revenue is allocated to distinct performance obligations and is recognized net of allowances for returns and discounts.

The Company recognizes revenue on product sales at the time control of the product transfers to the customer. In substantially all of the Company’s arrangements, title of the product transfers at shipping point and, as a result, the Company determined control transfers at the point of shipment. In more limited cases, there are destination-based shipping terms and, thus, control is deemed to transfer when the products arrive at the customer site. All incremental costs of obtaining a contract are expensed as and when incurred if the expected amortization period of the asset that would have been recognized is one year or less. Shipping and handling costs are included as a component of cost of

sales. In situations where the control of the goods transfers prior to the completion of the Company’s obligation to ship the products to its customers, the Company has elected the practical expedient to account for the shipping services as a fulfillment cost. Accordingly, such costs are recognized when control of the related goods is transferred to the customer. In more rare situations, the Company has revenue associated with products that contain specific customer acceptance criteria and the related revenue is not recognized before the customer acceptance criteria are satisfied. The Company elected to exclude from the measurement of the transaction price all taxes assessed by a governmental authority that are both imposed on and concurrent with specific revenue-producing transactions and collected by the Company from a customer.

Generally, the Company’s contracts for products include a performance obligation related to installation. The Company has determined that the installation represents a distinct performance obligation and revenue is recognized separately upon the completion of installation. The Company determines the amount of the transaction price to allocate to the installation service based on the standalone selling price of the product and the service, which requires judgment. The Company determines relative standalone selling price of installation based upon a number of factors, including hourly service billing rates and estimated installation hours. In developing these estimates, the Company considers past history, competition, billing rates of current services and other factors.

The Company has sales from standalone software, which is included in instrument systems revenue. These arrangements typically include software licenses and maintenance contracts, both of which the Company has determined are distinct performance obligations. The Company determines the amount of the transaction price to allocate to the license and maintenance contract based on the relative standalone selling price of each performance obligation. Software license revenue is recognized at the point in time when control has been transferred to the customer. The revenue allocated to the software maintenance contract is recognized on a straight-line basis over the maintenance period, which is the contractual term of the contract, as a time-based measure of progress best reflects the Company’s performance in satisfying this obligation. Unspecified rights to software upgrades are typically sold as part of the maintenance contract on a when-and-if-available basis.

Payment terms and conditions vary among the Company’s revenue streams, although terms generally include a requirement of payment within 30 to 60 days of product shipment. Prior to providing payment terms to customers, an evaluation of the customer’s credit risk is performed. Returns and customer credits are infrequent and insignificant and are recorded as a reduction to sales. Rights of return are not included in sales arrangements and, therefore, there is minimal variable consideration included in the transaction price of our products.

Service revenue includes (1) service and software maintenance contracts and (2) service calls (time and materials). Instrument service contracts and software maintenance contracts are typically annual contracts, which are billed at the beginning of the contract or maintenance period. The amount of the service and software maintenance contract is recognized on a straight-line basis to revenue over the maintenance service period, which is the contractual term of the contract, as a time-based measure of progress best reflects the Company’s performance in satisfying this obligation. There are no deferred costs associated with the service contract, as the cost of the service is recorded when the service is performed. Service calls are recognized to revenue at the time a service is performed.

The Company’s deferred revenue liabilities on the consolidated balance sheets consists of the obligation on instrument service contracts and customer payments received in advance, prior to transfer of control of the instrument. The Company records deferred revenue primarily related to its service contracts, where consideration is billable at the beginning of the service period.

The following is a summary of the activity of the Company’s deferred revenue and customer advances for the six months ended June 29, 2019 and June 30, 2018 (in thousands):

	June 29, 2019			June 30, 2018
Balance at the beginning of the period	$	204,257		$	192,590
Recognition of revenue included in balance at beginning of the period		(172,949	)		(138,227	)
Revenue deferred during the period, net of revenue recognized		229,162			186,392
Balance at the end of the period	$	260,470		$	240,755

The Company classified $40 million and $39 million of deferred revenue and customer advances in other long-term liabilities at June 29, 2019 and December 31, 2018, respectively.

The amount of deferred revenue and customer advances equals the transaction price allocated to unfulfilled performance obligations for the period presented. Such amounts are expected to be recognized in the future as follows (in thousands):

	June 29, 2019
Deferred revenue and customer advances expected to be recognized in:
One year or less	$	220,711
13-24 months		21,962
25 months and beyond		17,797
Total	$	260,470

Leases

The Company adopted new accounting guidance regarding the accounting for leases as of January 1, 2019 using a modified retrospective transition approach that was applied to leases existing as of, or entered into after, January 1, 2019. The Company elected the package of transition provisions available for expired or existing contracts, which allowed the Company to carryforward historical assessments of (1) whether contracts are or contain leases, (2) lease classification and (3) initial direct costs. Upon adoption, the Company recorded a right-of-use lease asset and lease liabilities in the amount $100 million as of January 1, 2019. The adoption of this standard did not have a material impact on the Company’s results of operations, cash flows and retained earnings.

The Company’s operating leases consist of property leases for sales, demonstration, laboratory, warehouse and office spaces, automotive leases for sales and service personnel and equipment leases, primarily used in our manufacturing and distribution operations. The lease policies described below were effective as of January 1, 2019. For leases with terms greater than 12 months, the Company recorded the related right-of-use asset and lease liability obligation at the present value of lease payments over the term of the leases. Some of the Company’s leases include rental escalation clauses, renewal options and/or termination options that are factored into our determination of lease payments. A certain number of these leases contain rent escalation clauses, either fixed or adjusted periodically for inflation of market rates, that are factored into the Company’s determination of lease payments. The Company also has variable lease payments that do not depend on a rate or index, primarily for items such as common area maintenance and real estate taxes, which are recorded as variable costs when incurred.

In addition, the Company’s lease agreements that contain lease and non-lease components are generally accounted for as a single lease component. The Company has elected not to apply the recognition requirements of the new accounting guidance to leases with terms less than 12 months. For these leases, the Company recognizes lease payments in net income on a straight-line basis over the term of the lease. As of June 29, 2019 and December 31, 2018, the Company does not have leases that are classified as finance leases.

When available, the Company uses the rate implicit in the lease to discount lease payments to determine the present value of the lease liabilities; however, most of the leases do not provide a readily determinable implicit rate and, as required by the accounting guidance, the Company estimated its incremental secured borrowing rate to discount the lease payments based on information available at lease commencement (or, for the leases in existence on the adoption date, the January 1, 2019 information). The Company’s incremental borrowing rate reflects the estimated rate of interest that the Company would pay to borrow on a collateralized basis over a similar term to the lease payments in a similar economic environment.

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

6 Months Ended

Jun. 29, 2019

Accounting Policies [Abstract]

Summary of Activity of Company's Allowance for Doubtful Accounts

The following is a summary of the activity of the Company’s allowance for doubtful accounts for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Balance at							Balance at
	Beginning							End of
	of Period		Additions		Deduction			Period
Allowance for Doubtful Accounts
June 29, 2019	$	7,663	$	3,793	$	(3,426	)	$	8,030
June 30, 2018	$	6,109	$	1,825	$	(1,778	)	$	6,156

Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis

The following table represents the Company’s assets and liabilities measured at fair value on a recurring basis at June 29, 2019 (in thousands):

			Quoted Prices
			in Active		Significant
			Markets		Other		Significant
	Total at		for Identical		Observable		Unobservable
	June 29,		Assets		Inputs		Inputs
	2019		(Level 1)		(Level 2)		(Level 3)
Assets:
U.S. Treasury securities	$	66,225	$	—	$	66,225	$	—
Corporate debt securities		94,335		—		94,335		—
Time deposits		57,964		—		57,964		—
Waters 401(k) Restoration Plan assets		33,278		33,278		—		—
Foreign currency exchange contracts		164		—		164		—
Interest rate cross-currency swap agreements		1,098		—		1,098		—
Total	$	253,064	$	33,278	$	219,786	$	—
Liabilities:
Contingent consideration	$	2,707	$	—	$	—	$	2,707
Foreign currency exchange contracts		292		—		292		—
Total	$	2,999	$	—	$	292	$	2,707

The following table represents the Company’s assets and liabilities measured at fair value on a recurring basis at December 31, 2018 (in thousands):

			Quoted Prices
			in Active		Significant
			Markets		Other		Significant
	Total at		for Identical		Observable		Unobservable
	December 31,		Assets		Inputs		Inputs
	2018		(Level 1)		(Level 2)		(Level 3)
Assets:
U.S. Treasury securities	$	164,315	$	—	$	164,315	$	—
Foreign government securities		3,463		—		3,463		—
Corporate debt securities		723,059		—		723,059		—
Time deposits		108,638		—		108,638		—
Waters 401(k) Restoration Plan assets		33,104		33,104		—		—
Foreign currency exchange contracts		503		—		503		—
Interest rate cross-currency swap agreements		1,093				1,093
Total	$	1,034,175	$	33,104	$	1,001,071	$	—
Liabilities:
Contingent consideration	$	2,476	$	—	$	—	$	2,476
Foreign currency exchange contracts		224		—		224		—
Total	$	2,700	$	—	$	224	$	2,476

Summary of Foreign Currency Exchange Contracts and Interest Rate Cross-Currency Swap Agreements

The Company’s foreign currency exchange contracts and interest rate cross-currency swap agreements included in the consolidated balance sheets are classified as follows (in thousands):

	June 29, 2019					December 31, 2018
	Notional Value		Fair Value			Notional Value		Fair Value
Foreign currency exchange contracts:
Other current assets	$	31,270	$	164		$	112,212	$	503
Other current liabilities	$	124,346	$	292		$	40,175	$	224
Interest rate cross-currency swap agreements:
Other assets	$	410,000	$	1,098		$	300,000	$	1,093
Accumulated other comprehensive income			$	(1,098	)			$	(1,093	)

Gains (Losses) on Foreign Exchange Contracts

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

	Financial	Three Months Ended						Six Months Ended
	Statement	June 29, 2019			June 30, 2018			June 29, 2019			June 30, 2018
	Classification
Foreign currency exchange contracts:
Realized gains (losses) on closed contracts	Cost of sales	$	136		$	(4,096	)	$	(407	)	$	(2,158	)
Unrealized losses on open contracts	Cost of sales		(3,044	)		(105	)		(2,518	)		(1,092	)
Cumulative net pre-tax losses	Cost of sales	$	(2,908	)	$	(4,201	)	$	(2,925	)	$	(3,250	)
Interest rate cross-currency swap agreements:
Interest earned	Interest income	$	2,923		$	—		$	5,150		$	—
Unrealized (losses) gains
on open contracts	Stockholders’ equity	$	(6,022	)	$	—		$	1,098		$	—

Summary of Activity of Company's Accrued Warranty Liability

The following is a summary of the activity of the Company’s accrued warranty liability for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Balance at							Balance at
	Beginning		Accruals for		Settlements			End of
	of Period		Warranties		Made			Period
Accrued warranty liability:
June 29, 2019	$	12,300	$	3,571	$	(4,288	)	$	11,583
June 30, 2018	$	13,026	$	3,588	$	(4,115	)	$	12,499

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Revenue Recognition (Tables)

6 Months Ended

Jun. 29, 2019

Revenue from Contract with Customer [Abstract]

Summary of Activity of Deferred Revenue and Customer Advances

The following is a summary of the activity of the Company’s deferred revenue and customer advances for the six months ended June 29, 2019 and June 30, 2018 (in thousands):

	June 29, 2019			June 30, 2018
Balance at the beginning of the period	$	204,257		$	192,590
Recognition of revenue included in balance at beginning of the period		(172,949	)		(138,227	)
Revenue deferred during the period, net of revenue recognized		229,162			186,392
Balance at the end of the period	$	260,470		$	240,755

Schedule of Amount of Deferred Revenue and Customer Advances

The amount of deferred revenue and customer advances equals the transaction price allocated to unfulfilled performance obligations for the period presented. Such amounts are expected to be recognized in the future as follows (in thousands):

	June 29, 2019
Deferred revenue and customer advances expected to be recognized in:
One year or less	$	220,711
13-24 months		21,962
25 months and beyond		17,797
Total	$	260,470

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Marketable Securities (Tables)

6 Months Ended

Jun. 29, 2019

Investments, Debt and Equity 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):

	June 29, 2019
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gain		Loss			Value
U.S. Treasury securities	$	66,221	$	4	$	—		$	66,225
Corporate debt securities		94,331		37		(33	)		94,335
Time deposits		57,964		—		—			57,964
Total	$	218,516	$	41	$	(33	)	$	218,524
Amounts included in:
Cash equivalents	$	130,744	$	5	$	—		$	130,749
Investments		87,772		36		(33	)		87,775
Total	$	218,516	$	41	$	(33	)	$	218,524
	December 31, 2018
	Amortized		Unrealized		Unrealized			Fair
	Cost		Gain		Loss			Value
U.S. Treasury securities	$	164,619	$	16	$	(320	)	$	164,315
Foreign government securities		3,486		1		(24	)		3,463
Corporate debt securities		725,778		41		(2,760	)		723,059
Time deposits		108,638		—		—			108,638
Total	$	1,002,521	$	58	$	(3,104	)	$	999,475
Amounts included in:
Cash equivalents	$	60,532	$	—	$	(1	)	$	60,531
Investments		941,989		58		(3,103	)		938,944
Total	$	1,002,521	$	58	$	(3,104	)	$	999,475

Investments Classified By Contractual Maturity Date

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

	June 29, 2019		December 31, 2018
Due in one year or less	$	211,124	$	797,649
Due after one year through three years		7,400		201,826
Total	$	218,524	$	999,475

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Inventories (Tables)

6 Months Ended

Jun. 29, 2019

Inventory Disclosure [Abstract]

Inventory, Net of Reserves

Inventories are classified as follows (in thousands):

	June 29, 2019		December 31, 2018
Raw materials	$	120,601	$	111,641
Work in progress		17,283		15,552
Finished goods		213,668		164,376
Total inventories	$	351,552	$	291,569

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Goodwill and Other Intangibles (Tables)

6 Months Ended

Jun. 29, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets

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

	June 29, 2019						December 31, 2018
					Weighted-						Weighted-
	Gross				Average		Gross				Average
	Carrying		Accumulated		Amortization		Carrying		Accumulated		Amortization
	Amount		Amortization		Period		Amount		Amortization		Period
Capitalized software	$	471,701	$	323,030		5 years	$	454,307	$	307,634		5 years
Purchased intangibles		201,442		148,603		11 years		201,566		144,184		11 years
Trademarks and IPR&D		13,691		—		—		13,677		—		—
Licenses		5,581		5,118		6 years		5,568		4,875		6 years
Patents and other intangibles		79,483		51,053		8 years		77,753		49,276		8 years
Total	$	771,898	$	527,804		7 years	$	752,871	$	505,969		7 years

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Debt (Tables)

6 Months Ended

Jun. 29, 2019

Debt Disclosure [Abstract]

Summary of Outstanding Debt

The Company had the following outstanding debt at June 29, 2019 and December 31, 2018 (in thousands):

	June 29, 2019			December 31, 2018
Foreign subsidiary lines of credit	$	295		$	178
Senior unsecured notes - Series B - 5.00%, due February 2020		100,000			—
Total notes payable and debt, current		100,295			178
Senior unsecured notes - Series B - 5.00%, due February 2020		—			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			50,000
Senior unsecured notes - Series K - 3.44%, due May 2026		160,000			160,000
Credit agreement		590,000			590,000
Unamortized debt issuance costs		(1,606	)		(1,828	)
Total long-term debt		1,048,394			1,148,172
Total debt	$	1,148,689		$	1,148,350

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

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Income Taxes (Tables)

6 Months Ended

Jun. 29, 2019

Income Tax Disclosure [Abstract]

Uncertain Tax Positions Roll Forward

The following is a summary of the activity of the Company’s uncertain tax positions for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	June 29, 2019			June 30, 2018
Balance at the beginning of the period	$	26,108		$	5,843
Net reductions for lapse of statutes taken during the period		(105	)		(191	)
Net additions for tax positions taken during the current period		801			408
Balance at the end of the period	$	26,804		$	6,060

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Leases (Tables)

6 Months Ended

Jun. 29, 2019

Leases [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Prior to the adoption of the new lease accounting standard, undiscounted future minimum rents payable as of December 31, 2018 under non-cancelable leases with initial terms exceeding one year were as follows (in thousands):

2019	$	28,417
2020		23,424
2021		16,032
2022		11,816
2023 and thereafter		23,269
Total future minimum lease payments	$	102,958

Schedule Of Supplemental Balance Sheet Information Related To Operating Leases [Table Text Block]

The Company’s right-of-use lease assets and lease liabilities included in the consolidated balance sheets are classified as follows (in thousands):

	Financial Statement Classification	June 29, 2019
Assets:
Property operating lease assets	Operating lease assets	$	61,646
Automobile operating lease assets	Operating lease assets		27,217
Equipment operating lease assets	Operating lease assets		2,197
Total lease assets		$	91,060
Liabilities:
Current operating lease liabilities	Current operating lease liabilities	$	25,106
Long-term operating lease liabilities	Long-term operating lease liabilities		66,713
Total lease liabilities		$	91,819

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

Undiscounted future minimum rents payable as of June 29, 2019 under non-cancelable leases with initial terms exceeding one year reconcile to lease liabilities included in the consolidated balance sheet as follows (in thousands):

2019 (remaining 6 months)	$	14,291
2020		24,596
2021		16,296
2022		10,462
2023		5,875
2024 and thereafter		31,161
Total future minimum lease payments		102,681
Less: amount of lease payments representing interest		(10,862	)
Present value of future minimum lease payments		91,819
Less: current operating lease liabilities		(25,106	)
Long-term operating lease liabilities	$	66,713

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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 29, 2019

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Schedule of Stock-Based Compensation Expense

The consolidated statements of operations for the three and six months ended June 29, 2019 and June 30, 2018 include the following stock-based compensation expense related to stock option awards, restricted stock awards, restricted stock unit awards, performance stock unit awards and the employee stock purchase plan (in thousands):

	Three Months Ended				Six Months Ended
	June 29, 2019		June 30, 2018		June 29, 2019		June 30, 2018
Cost of sales	$	567	$	603	$	1,142	$	1,208
Selling and administrative expenses		7,402		7,639		15,527		16,123
Research and development expenses		1,345		837		2,586		1,640
Total stock-based compensation	$	9,314	$	9,079	$	19,255	$	18,971

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 ended June 29, 2019 and June 30, 2018 are as follows:

	Six Months Ended
Options Issued and Significant Assumptions Used to Estimate Option Fair Values	June 29, 2019			June 30, 2018
Options issued in thousands		139			140
Risk-free interest rate		2.5	%		2.7	%
Expected life in years		5			6
Expected volatility		24.3	%		23.2	%
Expected dividends		—			—

	Six Months Ended
Weighted-Average Exercise Price and Fair Value of Options on the Date of Grant	June 29, 2019		June 30, 2018
Exercise price	$	231.30	$	205.97
Fair value	$	61.85	$	58.26

Stock Options Outstanding Roll Forward

The following table summarizes stock option activity for the plans for the six months ended June 29, 2019 (in thousands, except per share data):

	Number of Shares			Exercise Price per Share					Weighted-Average Exercise Price per Share
Outstanding at December 31, 2018		1,790		$	38.09	to	$	208.47	$	142.47
Granted		139		$	183.41	to	$	238.52	$	231.30
Exercised		(239	)	$	38.09	to	$	208.47	$	110.07
Canceled		(56	)	$	113.36	to	$	194.26	$	153.14
Outstanding at June 29, 2019		1,634		$	61.63	to	$	238.52	$	154.40

Restricted Stock Units Unvested Roll Forward

The following table summarizes the unvested restricted stock unit award activity for the six months ended June 29, 2019 (in thousands, except per share data):

	Shares			Weighted-Average Fair Value per Share
Unvested at December 31, 2018		304		$	153.31
Granted		83		$	236.28
Vested		(103	)	$	138.61
Forfeited		(15	)	$	167.10
Unvested at June 29, 2019		269		$	183.77

Relevant Data Used to Determine the Value of Performance Shares

The relevant data used to determine the value of the performance stock units granted during the six months ended June 29, 2019 and June 30, 2018 are as follows: 

	Six Months Ended
Performance Stock Units Issued and Significant Assumptions Used to Estimate Fair Values	June 29, 2019			June 30, 2018
Performance stock units issued (in thousands)		13			16
Risk-free interest rate		2.4	%		2.0	%
Expected life in years		2.8			2.8
Expected volatility		23.5	%		23.4	%
Average volatility of peer companies		26.2	%		25.8	%
Correlation coefficient		34.2	%		37.2	%
Expected dividends		—			—

Performance Stock Units Unvested Roll Forward

The following table summarizes the unvested performance stock unit award activity for the six months ended June 29, 2019 (in thousands, except per share data):

	Shares			Weighted-Average Fair Value per Share
Unvested at December 31, 2018		100		$	212.34
Granted		13		$	372.68
Forfeited		(6	)	$	208.58
Unvested at June 29, 2019		107		$	232.79

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Earnings Per Share (Tables)

6 Months Ended

Jun. 29, 2019

Earnings Per Share [Abstract]

Earnings Per Share Reconciliation

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

	Three Months Ended June 29, 2019
	Net Income		Weighted- Average Shares		Per Share
	(Numerator)		(Denominator)		Amount
Net income per basic common share	$	144,410		68,989	$	2.09
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		505		(0.01	)
Net income per diluted common share	$	144,410		69,494	$	2.08
	Three Months Ended June 30, 2018
	Net Income		Weighted- Average Shares		Per Share
	(Numerator)		(Denominator)		Amount
Net income per basic common share	$	155,677		77,833	$	2.00
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		605		(0.02	)
Net income per diluted common share	$	155,677		78,438	$	1.98
	Six Months Ended June 29, 2019
	Net Income		Weighted- Average Shares		Per Share
	(Numerator)		(Denominator)		Amount
Net income per basic common share	$	253,396		70,331	$	3.60
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities		—		573		(0.03	)
Net income per diluted common share	$	253,396		70,904	$	3.57

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Accumulated Other Comprehensive Income (Tables)

6 Months Ended

Jun. 29, 2019

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income

The components of accumulated other comprehensive income (loss) 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, 2018	$	(105,697	)	$	(9,869	)	$	(2,405	)	$	(117,971	)
Other comprehensive income, net of tax		491			34			2,350			2,875
Balance at June 29, 2019	$	(105,206	)	$	(9,835	)	$	(55	)	$	(115,096	)

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Retirement Plans (Tables)

6 Months Ended

Jun. 29, 2019

Retirement Benefits [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 ended June 29, 2019 and June 30, 2018 is as follows (in thousands):

	Three Months Ended
	June 29, 2019								June 30, 2018
	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	$	—	$	108		$	1,075		$	142		$	151		$	1,339
Interest cost		10		230			430			1,627			162			416
Expected return on plan assets		—		(177	)		(538	)		(630	)		(175	)		(481	)
Net amortization:
Prior service credit		—		(5	)		(37	)		—			(2	)		(32	)
Net actuarial loss		—		—			132			772			—			171
Net periodic pension cost	$	10	$	156		$	1,062		$	1,911		$	136		$	1,413

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Business Segment Information (Tables)

6 Months Ended

Jun. 29, 2019

Segment Reporting [Abstract]

Summary of Net Sales for Company's Products and Services

Net sales for the Company’s products and services are as follows for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Three Months Ended				Six Months Ended
	June 29, 2019		June 30, 2018		June 29, 2019		June 30, 2018
Product net sales:
Waters instrument systems	$	238,777	$	239,928	$	423,389	$	438,031
Chemistry consumables		100,292		99,129		199,545		197,839
TA instrument systems		48,196		49,812		84,834		92,116
Total product sales		387,265		388,869		707,768		727,986
Service net sales:
Waters service		192,048		188,248		368,097		362,581
TA service		19,849		19,102		37,159		36,322
Total service sales		211,897		207,350		405,256		398,903
Total net sales	$	599,162	$	596,219	$	1,113,024	$	1,126,889

Summary of Geographic Sales Information

Net sales are attributable to geographic areas based on the region of destination. Geographic sales information is presented below for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Three Months Ended				Six Months Ended
	June 29, 2019		June 30, 2018		June 29, 2019		June 30, 2018
Net Sales:
Asia:
China	$	112,796	$	109,709	$	202,887	$	203,537
Japan		45,958		43,183		89,462		85,948
Asia Other		80,081		84,013		146,998		147,700
Total Asia		238,835		236,905		439,347		437,185
Americas:
United States		173,940		161,485		323,097		308,306
Americas Other		32,835		36,641		65,546		71,530
Total Americas		206,775		198,126		388,643		379,836
Europe		153,552		161,188		285,034		309,868
Total net sales	$	599,162	$	596,219	$	1,113,024	$	1,126,889

Summary of Net Sales by Customer Class

Net sales by customer class are as follows for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Three Months Ended				Six Months Ended
	June 29, 2019		June 30, 2018		June 29, 2019		June 30, 2018
Pharmaceutical	$	350,145	$	338,354	$	644,657	$	643,682
Industrial		176,109		183,664		331,327		345,994
Academic and governmental		72,908		74,201		137,040		137,213
Total net sales	$	599,162	$	596,219	$	1,113,024	$	1,126,889

Summary of Net Sales of Company Recognized at a Point in Time Versus Over Time

Net sales for the Company recognized at a point in time versus over time are as follows for the three and six months ended June 29, 2019 and June 30, 2018 (in thousands):

	Three Months Ended				Six Months Ended
	June 29, 2019		June 30, 2018		June 29, 2019		June 30, 2018
Net sales recognized at a point in time:
Instrument systems	$	286,973	$	289,740	$	508,223	$	530,147
Chemistry consumables		100,292		99,129		199,545		197,839
Service sales recognized at a point in time (time & materials)		84,807		80,397		157,566		152,915
Total net sales recognized at a point in time		472,072		469,266		865,334		880,901
Net sales recognized over time:
Service and software maintenance sales recognized over time (contracts)		127,090		126,953		247,690		245,988
Total net sales	$	599,162	$	596,219	$	1,113,024	$	1,126,889

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Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) shares in Millions	1 Months Ended		3 Months Ended		6 Months Ended		12 Months Ended
	Jan. 31, 2019	Jan. 31, 2019	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018	Dec. 31, 2018	Apr. 30, 2019
Basis of Presentation and Summary of Significant Accounting Policies [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			$ 676,000,000		$ 676,000,000		$ 1,735,000,000
Allowance for doubtful accounts description					Past due balances over 90 days and over a specified amount are reviewed individually for collectibility.
Contingent consideration			2,707,000		$ 2,707,000		2,476,000
Long-term debt			1,048,394,000		$ 1,048,394,000		$ 1,148,172,000
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. The foreign currency exchange contracts are not designated for hedge accounting treatment.
Term of derivative agreement							3 years
Treasury stock			561,197,000	$ 270,774,000	$ 1,316,504,000	$ 553,144,000
Severance and related costs			1,000,000		9,000,000
Percentage of workforce reduction	1.00%
Accrued treasury stock repurchases			9,874,000		9,874,000		$ 23,005,000
Payments to Acquire Investments					$ 35,523,000	$ 513,342,000
January 2019 Program [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Stock repurchase program authorization amount	$ 4,000,000,000	$ 4,000,000,000
Stock repurchase program period		2 years
Treasury stock shares acquired					5.1
Treasury stock					$ 1,200,000,000
Stock repurchase program remaining amount authorized for future purchases			2,800,000,000		2,800,000,000
Cross Currency Interest Rate Contract [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Term of derivative agreement							3 years
Notional value, derivative asset			110,000,000		110,000,000		$ 300,000,000	$ 110,000,000
Unsecured Debt [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Long-term debt			560,000,000		560,000,000		560,000,000
Unsecured Debt [Member] | Fixed Interest Rate [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Long-term debt			510,000,000		510,000,000		510,000,000
Fair value of fixed interest rate debt			512,000,000		512,000,000		502,000,000
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Contingent consideration			2,707,000		2,707,000		2,476,000
Held In Currencies Other Than Us Dollars [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Cash, cash equivalents and investments			256,000,000		$ 256,000,000		251,000,000
Programs Authorized by Board of Directors [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Treasury stock shares acquired					5.9	2.7
Treasury stock					$ 1,300,000,000	$ 546,000,000
Related to Vesting of Restricted Stock Units [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Treasury stock					8,000,000	8,000,000
Held By Foreign Subsidiaries [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Cash, cash equivalents and investments			$ 421,000,000		421,000,000		$ 471,000,000
Developer of Laboratory Solutions [Member]
Basis of Presentation and Summary of Significant Accounting Policies [Line Items]
Payments to Acquire Investments					$ 5,000,000	$ 3,000,000

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Basis of Presentation and Summary of Significant Accounting Policies - Allowance for Doubtful Accounts Roll Forward (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Allowance for Doubtful Accounts Receivable [Roll Forward]
Beginning balance	$ 7,663	$ 6,109
Additions	3,793	1,825
Deduction	(3,426)	(1,778)
Ending balance	$ 8,030	$ 6,156

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Basis of Presentation and Summary of Significant Accounting Policies - Summary of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Thousands	Jun. 29, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	$ 218,524	$ 999,475
Waters 401(k) Restoration Plan assets	33,278	33,104
Total	253,064	1,034,175
Contingent consideration	2,707	2,476
Total	2,999	2,700
Foreign Currency Exchange Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, derivative asset	164	503
Foreign currency exchange contracts	292	224
Cross Currency Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, derivative asset	1,098	1,093
US Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	66,225	164,315
Foreign Government Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		3,463
Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	94,335	723,059
Time Deposits [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	57,964	108,638
Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Waters 401(k) Restoration Plan assets	33,278	33,104
Total	33,278	33,104
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 2) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	219,786	1,001,071
Total	292	224
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 2) [Member] | Foreign Currency Exchange Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, derivative asset	164	503
Foreign currency exchange contracts	292	224
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 2) [Member] | Cross Currency Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, derivative asset	1,098	1,093
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 2) [Member] | US Treasury Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	66,225	164,315
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 2) [Member] | Foreign Government Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities		3,463
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 2) [Member] | Corporate Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	94,335	723,059
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 2) [Member] | Time Deposits [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available for sale securities	57,964	108,638
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Contingent consideration	2,707	2,476
Total	$ 2,707	$ 2,476

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Basis of Presentation and Summary of Significant Accounting Policies - Fair Value of Forward Foreign Exchange Contracts (Detail) - USD ($)	Jun. 29, 2019	Apr. 30, 2019	Dec. 31, 2018
Foreign Currency Exchange Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, derivative asset	$ 164,000		$ 503,000
Fair value, derivative liability	292,000		224,000
Cross Currency Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional value, derivative asset	110,000,000	$ 110,000,000	300,000,000
Fair value, derivative asset	1,098,000		1,093,000
Other Current Assets [Member] | Foreign Currency Exchange Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional value, derivative asset	31,270,000		112,212,000
Fair value, derivative asset	164,000		503,000
Other Current Liabilities [Member] | Foreign Currency Exchange Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional value, derivative liability	124,346,000		40,175,000
Fair value, derivative liability	292,000		224,000
Other Assets [Member] | Cross Currency Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notional value, derivative asset	410,000,000		300,000,000
Fair value, derivative asset	1,098,000		1,093,000
Accumulated Other Comprehensive Income (Loss) [Member] | Cross Currency Interest Rate Contract [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value, derivative asset	$ (1,098,000)		$ (1,093,000)

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Basis of Presentation and Summary of Significant Accounting Policies - Gains (Losses) on Foreign Exchange Contracts (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Cost of Sales [Member] | Foreign Currency Exchange Contract [Member]
Derivative [Line Items]
Realized gains (losses) on closed contracts	$ 136	$ (4,096)	$ (407)	$ (2,158)
Unrealized losses on open contracts	(3,044)	(105)	(2,518)	(1,092)
Cumulative net pre-tax losses	(2,908)	$ (4,201)	(2,925)	$ (3,250)
Interest Income [Member] | Cross Currency Interest Rate Contract [Member]
Derivative [Line Items]
Interest earned	2,923		5,150
Stockholders' Equity [Member] | Cross Currency Interest Rate Contract [Member]
Derivative [Line Items]
Unrealized (losses) gains on open contracts	$ (6,022)		$ 1,098

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Basis of Presentation and Summary of Significant Accounting Policies - Summary of Activity of Company's Accrued Warranty Liability (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance at Beginning of Period	$ 12,300	$ 13,026
Accruals for Warranties	3,571	3,588
Settlements Made	(4,288)	(4,115)
Balance at End of Period	$ 11,583	$ 12,499

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Revenue Recognition - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Jun. 29, 2019	Dec. 31, 2018
Revenue Recognition [Line Items]
Accounts receivable, payment terms and conditions	Payment terms and conditions vary among the Company’s revenue streams, although terms generally include a requirement of payment within 30 to 60 days of product shipment.
Other Long-Term Liabilities [Member]
Revenue Recognition [Line Items]
Deferred revenue and customer advances	$ 40	$ 39

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Revenue Recognition - Summary of Activity of Deferred Revenue and Customer Advances (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Revenue Recognition and Deferred Revenue [Abstract]
Balance at the beginning of the period	$ 204,257	$ 192,590
Recognition of revenue included in balance at beginning of the period	(172,949)	(138,227)
Revenue deferred during the period, net of revenue recognized	229,162	186,392
Balance at the end of the period	$ 260,470	$ 240,755

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Revenue Recognition - Schedule of Estimated Amount of Deferred Revenue and Customer Advances (Detail) - USD ($) $ in Thousands	Jun. 29, 2019	Dec. 31, 2018
Revenue Recognition [Line Items]
Deferred revenue and customer advances expected to be recognized	$ 220,711	$ 164,965
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-12-30
Revenue Recognition [Line Items]
Deferred revenue and customer advances expected to be recognized	$ 220,711
Deferred revenue and customer advances recognition period	0 years
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-12-29
Revenue Recognition [Line Items]
Deferred revenue and customer advances expected to be recognized	$ 21,962
Deferred revenue and customer advances recognition period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-12-27
Revenue Recognition [Line Items]
Deferred revenue and customer advances expected to be recognized	$ 17,797
Deferred revenue and customer advances recognition period	2 years

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Marketable Securities - Schedule of Available-for-Sale Securities Reconciliation (Detail) - USD ($) $ in Thousands	Jun. 29, 2019	Dec. 31, 2018
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$ 218,516	$ 1,002,521
Unrealized Gain	41	58
Unrealized Loss	(33)	(3,104)
Fair Value	218,524	999,475
US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	66,221	164,619
Unrealized Gain	4	16
Unrealized Loss		(320)
Fair Value	66,225	164,315
Foreign Government Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost		3,486
Unrealized Gain		1
Unrealized Loss		(24)
Fair Value		3,463
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	94,331	725,778
Unrealized Gain	37	41
Unrealized Loss	(33)	(2,760)
Fair Value	94,335	723,059
Time Deposits [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	57,964	108,638
Unrealized Loss	0
Fair Value	57,964	108,638
Cash Equivalents [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	130,744	60,532
Unrealized Gain	5
Unrealized Loss		(1)
Fair Value	130,749	60,531
Short-term Investments [Member]
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	87,772	941,989
Unrealized Gain	36	58
Unrealized Loss	(33)	(3,103)
Fair Value	$ 87,775	$ 938,944

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Marketable Securities - Investments Classified By Contractual Maturity Date (Detail) - USD ($) $ in Thousands	Jun. 29, 2019	Dec. 31, 2018
Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value [Abstract]
Due in one year or less	$ 211,124	$ 797,649
Due after one year through three years	7,400	201,826
Total	$ 218,524	$ 999,475

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Inventories - Inventory, Net of Reserves (Detail) - USD ($) $ in Thousands	Jun. 29, 2019	Dec. 31, 2018
Inventory, Net, Items Net of Reserve Alternative [Abstract]
Raw materials	$ 120,601	$ 111,641
Work in progress	17,283	15,552
Finished goods	213,668	164,376
Total inventories	$ 351,552	$ 291,569

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Goodwill and Other Intangibles - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	$ 355,890		$ 355,890		$ 355,614
Intangible assets, gross foreign currency translation adjustments			2,000
Intangible assets, accumulated amortization foreign currency translation adjustments			2,000
Amortization expense	12,000	$ 12,000	25,000	$ 25,000
Future amortization expense, year 1	50,000		50,000
Future amortization expense, year 2	50,000		50,000
Future amortization expense, year 3	50,000		50,000
Future amortization expense, year 4	50,000		50,000
Future amortization expense, year 5	$ 50,000		$ 50,000

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Goodwill and Other Intangibles - Schedule of Intangible Assets (Detail) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 29, 2019	Dec. 31, 2018
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 771,898	$ 752,871
Accumulated Amortization	$ 527,804	$ 505,969
Weighted-Average Amortization Period	7 years	7 years
Trademarks and In Process Research and Development [Member]
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 13,691	$ 13,677
Accumulated Amortization	0
Software Development [Member]
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	471,701	454,307
Accumulated Amortization	$ 323,030	$ 307,634
Weighted-Average Amortization Period	5 years	5 years
Purchased Intangibles [Member]
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 201,442	$ 201,566
Accumulated Amortization	$ 148,603	$ 144,184
Weighted-Average Amortization Period	11 years	11 years
Licensing Agreements [Member]
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 5,581	$ 5,568
Accumulated Amortization	$ 5,118	$ 4,875
Weighted-Average Amortization Period	6 years	6 years
Patents and Other Intangibles [Member]
Finite Lived and Indefinite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 79,483	$ 77,753
Accumulated Amortization	$ 51,053	$ 49,276
Weighted-Average Amortization Period	8 years	8 years

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Debt - Additional Information (Detail) - USD ($)	1 Months Ended	6 Months Ended	12 Months Ended
	Feb. 26, 2019	Jun. 29, 2019	Dec. 31, 2018	Apr. 30, 2019	Nov. 30, 2017
Debt Instrument [Line Items]
Long-term debt		$ 1,048,394,000	$ 1,148,172,000
Line of credit maximum borrowing capacity		$ 106,000,000	$ 90,000,000
Line of credit interest rate during the period		1.48%	1.88%
Derivative instrument, term			3 years
Cross Currency Interest Rate Contract [Member]
Debt Instrument [Line Items]
Notional value, derivative asset		$ 110,000,000	$ 300,000,000	$ 110,000,000
Derivative instrument, term			3 years
Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Interest rate terms on debt		The interest rates applicable to the 2017 Credit Agreement are, at the Company’s option, equal to either the alternate base rate (which is a rate per annum equal to the greatest of (1) the prime rate in effect on such day, (2) the Federal Reserve Bank of New York Rate on such day plus 1/2 of 1% per annum and (3) 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 or EURIBO rate for Euro-denominated loans, in each case, plus an interest rate margin based upon the Company’s leverage ratio, which can range between 0 and 12.5 basis points for alternate base rate loans and between 80 and 112.5 basis points for LIBO rate or EURIBO rate loans.
Debt facility fee		The facility fee on the 2017 Credit Agreement ranges between 7.5 and 25 basis points per annum, based on the leverage ratio, of the amount of the revolving facility commitments and the outstanding term loan.
Debt covenant description		The 2017 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 2017 Credit Agreement includes negative covenants, affirmative covenants, representations and warranties and events of default that are customary for investment grade credit facilities.
Unused borrowing capacity		$ 1,208,000,000	$ 1,208,000,000
Unsecured Debt [Member]
Debt Instrument [Line Items]
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. In addition, these senior unsecured notes include customary negative covenants, affirmative covenants, representations and warranties and events of default.
Long-term debt		$ 560,000,000	$ 560,000,000
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.
Credit Agreements and Unsecured Debt [Member]
Debt Instrument [Line Items]
Weighted-average interest rate		3.74%	3.83%
Senior Notes [Member]
Debt Instrument [Line Items]
Debt covenant description	In February 2019, certain defined terms related to the subsidiary guarantors were amended in the 2017 Credit Agreement and senior unsecured note agreements. In addition, the Company amended the senior unsecured note agreements to allow the Company to elect an increase in the permitted leverage ratio from 3.50:1 to 4.0:1, for a period of three consecutive quarters, for a material acquisition of $400 million or more. During the period of time where the leverage ratio exceeds 3.50:1, the interest payable on the senior unsecured notes shall increase by 0.50%. The debt covenants in the senior unsecured note agreements were also modified to address the change in accounting guidance for leases.
Revolving Facilities [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Face value of debt					$ 1,500,000,000
Term Loan Facility [Member] | Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Face value of debt					$ 300,000,000

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Debt - Summary of Outstanding Debt (Detail) - USD ($) $ in Thousands		Jun. 29, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Foreign subsidiary lines of credit		$ 295	$ 178
Total notes payable and debt, current		100,295	178
Unamortized debt issuance costs		(1,606)	(1,828)
Long-term debt		1,048,394	1,148,172
Total debt		1,148,689	1,148,350
Senior Unsecured Notes Series B [Member]
Debt Instrument [Line Items]
Total notes payable and debt, current		100,000
Long-term debt			100,000
Senior Unsecured Notes Series E [Member]
Debt Instrument [Line Items]
Long-term debt		50,000	50,000
Senior Unsecured Notes Series F [Member]
Debt Instrument [Line Items]
Long-term debt		100,000	100,000
Senior Unsecured Notes Series G [Member]
Debt Instrument [Line Items]
Long-term debt		50,000	50,000
Senior Unsecured Notes Series H [Member]
Debt Instrument [Line Items]
Long-term debt	[1]	50,000	50,000
Senior Unsecured Notes Series I [Member]
Debt Instrument [Line Items]
Long-term debt		50,000	50,000
Senior Unsecured Notes Series K [Member]
Debt Instrument [Line Items]
Long-term debt		160,000	160,000
Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Long-term debt		$ 590,000	$ 590,000

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

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Debt - Summary of Outstanding Debt (Parenthetical) (Detail)	6 Months Ended	12 Months Ended
	Jun. 29, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Interest rate margin	1.25%	1.25%
Senior Unsecured Notes Series B [Member]
Debt Instrument [Line Items]
Stated interest rate on debt instrument	5.00%	5.00%
Senior Unsecured Notes Series E [Member]
Debt Instrument [Line Items]
Stated interest rate on debt instrument	3.97%	3.97%
Senior Unsecured Notes Series F [Member]
Debt Instrument [Line Items]
Stated interest rate on debt instrument	3.40%	3.40%
Senior Unsecured Notes Series G [Member]
Debt Instrument [Line Items]
Stated interest rate on debt instrument	3.92%	3.92%
Senior Unsecured Notes Series H [Member]
Debt Instrument [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%.	Series H senior unsecured notes bear interest at a 3-month LIBOR for that floating rate interest period plus 1.25%.
Senior Unsecured Notes Series I [Member]
Debt Instrument [Line Items]
Stated interest rate on debt instrument	3.13%	3.13%
Senior Unsecured Notes Series K [Member]
Debt Instrument [Line Items]
Stated interest rate on debt instrument	3.44%	3.44%

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Income Taxes - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Income Taxes [Line Items]
Income tax holiday amount			$ 9	$ 13
Income tax holiday per share benefit			$ 0.13	$ 0.17
Effective income tax rate	15.90%	10.80%	12.40%	15.10%
Effect of stock-based compensation		$ 1
Effective income tax rate reconciliation, share-based compensation, excess tax benefit, percent		5.60%	1.00%	1.30%
Tax Cuts and Jobs Act, Income Tax Expense (Benefit)			$ 3
Foreign currency exchange rate impact		$ 9		$ 4
Maximum [Member]
Income Taxes [Line Items]
Expected change in unrecognized tax benefits in the next twelve months	$ (1)		$ (1)
United States [Member]
Income Taxes [Line Items]
Statutory tax rate			21.00%
Ireland [Member]
Income Taxes [Line Items]
Statutory tax rate			12.50%
U.K [Member]
Income Taxes [Line Items]
Statutory tax rate			19.00%
Singapore [Member]
Income Taxes [Line Items]
Statutory tax rate			17.00%
Singapore [Member] | Contractual Tax Rate Singapore [Member]
Income Taxes [Line Items]
Marginal effective income tax rate			0.00%

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Income Taxes - Uncertain Tax Positions Roll Forward (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Balance at the beginning of the period	$ 26,108	$ 5,843
Net reductions for lapse of statutes taken during the period	(105)	(191)
Net additions for tax positions taken during the current period	801	408
Balance at the end of the period	$ 26,804	$ 6,060

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Leases - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018	Jan. 01, 2019
Leases [Abstract]
Lease liability	$ 91,819		$ 91,819		$ 100,000
Weighted Average Remaining Lease Term	4 years 10 months 24 days		4 years 10 months 24 days
Rental expense	$ 9,000	$ 8,000	$ 18,000	$ 15,000
Weighted Average Discount Rate	3.94%		3.94%
Operating activities in the statement of cash flows			$ 18,000

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Leases - Future minimum rents payable (Detail) $ in Thousands	Dec. 31, 2018 USD ($)
Leases [Abstract]
2019	$ 28,417
2020	23,424
2021	16,032
2022	11,816
2023 and thereafter	23,269
Total	$ 102,958

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Leases - Schedule of Company's right-of-use lease assets and lease liabilities (Detail) - USD ($) $ in Thousands	Jun. 29, 2019	Jan. 01, 2019
Assets:
Total lease assets	$ 91,060	$ 100,000
Liabilities:
Operating lease liabilities - current	25,106
Operating lease liabilities - long-term	66,713
Total lease liabilities	91,819	$ 100,000
Current operating lease liabilities [Member]
Liabilities:
Operating lease liabilities - current	25,106
Long-term operating lease liabilities [Member]
Liabilities:
Operating lease liabilities - long-term	66,713
Property Operating lease assets [Member]
Assets:
Total lease assets	61,646
Automobile Operating lease assets [Member]
Assets:
Total lease assets	27,217
Equipment operating lease assets [Member]
Assets:
Total lease assets	$ 2,197

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Leases - Schedule of Undiscounted future minimum rents payable (Detail) - USD ($) $ in Thousands	Jun. 29, 2019	Jan. 01, 2019
2019 (remaining 6 months)	$ 14,291
2020	24,596
2021	16,296
2022	10,462
2023	5,875
2024 and thereafter	31,161
Total future minimum lease payments	102,681
Less: amount of lease payments representing interest	(10,862)
Present value of future minimum lease payments	91,819	$ 100,000
Less: current operating lease liabilities	25,106
Long-term operating lease liabilities	$ 66,713

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Stock-Based Compensation - Additional Information (Detail)	6 Months Ended
	Jun. 29, 2019 $ / shares
Performance Stock Unit Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant date fair value of shares granted	$ 372.68
Performance Stock Unit Plan | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights	0.00%
Performance Stock Unit Plan | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights	200.00%
Restricted Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant date fair value of shares granted	$ 183.41

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Stock-Based Compensation - Schedule of Stock-Based Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation	$ 9,314	$ 9,079	$ 19,255	$ 18,971
Cost of Sales [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation	567	603	1,142	1,208
Selling and Administrative Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation	7,402	7,639	15,527	16,123
Research and Development Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items]
Total stock-based compensation	$ 1,345	$ 837	$ 2,586	$ 1,640

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Stock-Based Compensation - Relevant Data Used to Determine the Value of Stock Options Granted During the Period (Detail) - Equity Option [Member] - USD ($) shares in Thousands	6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Options Issued and Significant Assumptions Used to Estimate Option Fair Values
Options issued	139	140
Fair value assumptions, risk free interest rate	2.50%	2.70%
Fair value assumptions, expected life in years	5 years	6 years
Fair value assumptions, expected volatility	24.30%	23.20%
Fair value assumptions, expected dividends
Weighted-Average Exercise Price and Fair Value of Options on the Date of Grant
Weighted-average exercise price of options granted	$ 231.30	$ 205.97
Weighted-average grant date fair value of options granted	$ 61.85	$ 58.26

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Stock-Based Compensation - Stock Options Outstanding Roll Forward (Detail) - Equity Option [Member] - $ / shares shares in Thousands	6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding at December 31, 2018	1,790
Granted	139	140
Exercised	(239)
Canceled	(56)
Outstanding at March 30, 2019	1,634
Weighted-average exercise price of options outstanding at beginning of period	$ 142.47
Weighted-average exercise price of options granted	231.30	$ 205.97
Weighted-average exercise price of options exercised	110.07
Weighted average exercise price of options canceled	153.14
Weighted-average exercise price of options outstanding at end of period	154.40
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average exercise price of options outstanding at beginning of period	38.09
Weighted-average exercise price of options granted	183.41
Weighted-average exercise price of options exercised	38.09
Weighted average exercise price of options canceled	113.36
Weighted-average exercise price of options outstanding at end of period	61.63
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average exercise price of options outstanding at beginning of period	208.47
Weighted-average exercise price of options granted	238.52
Weighted-average exercise price of options exercised	208.47
Weighted average exercise price of options canceled	194.26
Weighted-average exercise price of options outstanding at end of period	$ 238.52

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Stock-Based Compensation - Restricted Stock Units Unvested Roll Forward (Detail) - Restricted Stock Units (RSUs) [Member] shares in Thousands	6 Months Ended
	Jun. 29, 2019 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested Beginning balance, Shares | shares	304
Shares, Granted | shares	83
Shares, Vested | shares	(103)
Shares, Forfeited | shares	(15)
Unvested Ending balance, Shares | shares	269
Weighted-average grant date fair value per share of shares unvested at beginning of period | $ / shares	$ 153.31
Weighted-average grant date fair value per share of shares granted | $ / shares	236.28
Weighted-average grant date fair value per share of shares vested | $ / shares	138.61
Weighted-average grant date fair value of shares forfeited | $ / shares	167.10
Weighted-average grant date fair value per share of shares unvested at end of period | $ / shares	$ 183.77

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Stock-Based Compensation - Relevant Data Used to Determine the Value of Performance Shares (Detail) - Performance Stock Unit Plan [Member] - USD ($) shares in Thousands	6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Performance Stock Units Issued and Significant Assumptions Used to Estimate Fair Values
Shares granted	13	16
Fair value assumptions, risk free interest rate	2.40%	2.00%
Fair value assumptions, expected life in years	2 years 9 months 18 days	2 years 9 months 18 days
Fair value assumptions, expected volatility	23.50%	23.40%
Fair value assumptions, expected volatility of peer companies	26.20%	25.80%
Fair value assumptions, correlation coefficient	34.20%	37.20%
Fair value assumptions, expected dividends	$ 0	$ 0

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Stock-Based Compensation - Performance Stock Units Unvested Roll Forward (Detail) - Performance Stock Unit Plan [Member] - $ / shares shares in Thousands	6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unvested Beginning balance, Shares	100
Shares granted	13	16
Shares Forfeited	(6)
Unvested Ending balance, Shares	107
Weighted-average grant date fair value per share of shares unvested at beginning of period	$ 212.34
Weighted-average grant date fair value per share of shares granted	372.68
Weighted-average grant date fair value per share of shares forfeited	208.58
Weighted-average grant date fair value per share of shares unvested at end of period	$ 232.79

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Earnings Per Share - Earnings Per Share Reconciliation (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Earnings Per Share [Abstract]
Net income per basic common share, Net Income (Numerator)	$ 144,410	$ 155,677	$ 253,396	$ 267,628
Net income per diluted common share, Net Income (Numerator)	$ 144,410	$ 155,677	$ 253,396	$ 267,628
Net income per basic common share, Weighted-Average Shares (Denominator)	68,989	77,833	70,331	78,330
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities, Weighted-Average Shares (Denominator)	505	605	573	711
Net income per diluted common share, Weighted-Average Shares (Denominator)	69,494	78,438	70,904	79,041
Net income per basic common share, Per Share Amount	$ 2.09	$ 2.00	$ 3.60	$ 3.42
Effect of dilutive stock option, restricted stock, performance stock unit and restricted stock unit securities, Per Share Amount	(0.01)	(0.02)	(0.03)	(0.03)
Net income per diluted common share, Per Share Amount	$ 2.08	$ 1.98	$ 3.57	$ 3.39

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Earnings Per Share - Additional Information (Detail) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Earnings Per Share [Abstract]
Antidilutive securities excluded from computation of earnings per share	0.1	0.1	0.1	0.1

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Accumulated Other Comprehensive Income - Schedule of Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ 967,742	$ 2,114,894	$ 1,567,258	$ 2,233,788
Other comprehensive income, net of tax	(6,452)	(44,270)	2,875	(22,834)
Ending balance	556,245	$ 1,975,094	556,245	$ 1,975,094
Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			(105,697)
Other comprehensive income, net of tax			491
Ending balance	(105,206)		(105,206)
Unrealized Gain (Loss) on Retirement Plans [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			(9,869)
Other comprehensive income, net of tax			34
Ending balance	(9,835)		(9,835)
Unrealized Gain (Loss) on Investments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			(2,405)
Other comprehensive income, net of tax			2,350
Ending balance	(55)		(55)
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			(117,971)
Other comprehensive income, net of tax			2,875
Ending balance	$ (115,096)		$ (115,096)

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Retirement Plans - Additional Information (Detail)	Jun. 29, 2019 USD ($)
Minimum [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated future employer contributions in current fiscal year	$ 3,000,000
Maximum [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated future employer contributions in current fiscal year	$ 6,000,000

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Retirement Plans - Defined Benefit Plan, Net Periodic Benefit Cost (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Pension Plans [Member] | United States [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost		$ 142		$ 284
Interest cost	$ 10	1,627	$ 23	3,246
Expected return on plan assets		(630)		(3,415)
Net amortization: Net actuarial loss		772		1,541
Net periodic pension cost (benefit)	10	1,911	23	1,656
Pension Plans [Member] | Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1,075	1,339	2,157	2,713
Interest cost	430	416	864	844
Expected return on plan assets	(538)	(481)	(1,081)	(974)
Net amortization: Prior service credit	(37)	(32)	(74)	(63)
Net amortization: Net actuarial loss	132	171	267	348
Net periodic pension cost (benefit)	1,062	1,413	2,133	2,868
Retiree Healthcare Plan [Member] | United States [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	108	151	250	283
Interest cost	230	162	389	318
Expected return on plan assets	(177)	(175)	(354)	(353)
Net amortization: Prior service credit	(5)	(2)	(10)	(10)
Net periodic pension cost (benefit)	$ 156	$ 136	$ 275	$ 238

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Business Segment Information - Additional Information (Detail)	6 Months Ended
	Jun. 29, 2019 Segment
Segment Reporting [Abstract]
Number of operating segments	2
Number of reportable segments	1

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Business Segment Information - Summary of Net Sales for Company's Products and Services (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Total net sales	$ 599,162	$ 596,219	$ 1,113,024	$ 1,126,889
Waters Instrument Systems [Member]
Disaggregation of Revenue [Line Items]
Total net sales	238,777	239,928	423,389	438,031
Chemistry Consumables [Member]
Disaggregation of Revenue [Line Items]
Total net sales	100,292	99,129	199,545	197,839
TA Instrument Systems [Member]
Disaggregation of Revenue [Line Items]
Total net sales	48,196	49,812	84,834	92,116
Product [Member]
Disaggregation of Revenue [Line Items]
Total net sales	387,265	388,869	707,768	727,986
Waters Service [Member]
Disaggregation of Revenue [Line Items]
Total net sales	192,048	188,248	368,097	362,581
TA Service [Member]
Disaggregation of Revenue [Line Items]
Total net sales	19,849	19,102	37,159	36,322
Service [Member]
Disaggregation of Revenue [Line Items]
Total net sales	$ 211,897	$ 207,350	$ 405,256	$ 398,903

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Business Segment Information - Summary of Geographic Sales Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Total net sales	$ 599,162	$ 596,219	$ 1,113,024	$ 1,126,889
China [Member]
Disaggregation of Revenue [Line Items]
Total net sales	112,796	109,709	202,887	203,537
Japan [Member]
Disaggregation of Revenue [Line Items]
Total net sales	45,958	43,183	89,462	85,948
Asia Other [Member]
Disaggregation of Revenue [Line Items]
Total net sales	80,081	84,013	146,998	147,700
Total Asia [Member]
Disaggregation of Revenue [Line Items]
Total net sales	238,835	236,905	439,347	437,185
United States [Member]
Disaggregation of Revenue [Line Items]
Total net sales	173,940	161,485	323,097	308,306
Americas Other [Member]
Disaggregation of Revenue [Line Items]
Total net sales	32,835	36,641	65,546	71,530
Total Americas [Member]
Disaggregation of Revenue [Line Items]
Total net sales	206,775	198,126	388,643	379,836
Europe [Member]
Disaggregation of Revenue [Line Items]
Total net sales	$ 153,552	$ 161,188	$ 285,034	$ 309,868

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Business Segment Information - Summary of Net Sales by Customer Class (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Revenue, Major Customer [Line Items]
Total net sales	$ 599,162	$ 596,219	$ 1,113,024	$ 1,126,889
Pharmaceutical [Member]
Revenue, Major Customer [Line Items]
Total net sales	350,145	338,354	644,657	643,682
Industrial [Member]
Revenue, Major Customer [Line Items]
Total net sales	176,109	183,664	331,327	345,994
Academic and governmental [Member]
Revenue, Major Customer [Line Items]
Total net sales	$ 72,908	$ 74,201	$ 137,040	$ 137,213

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Business Segment Information - Summary of Net Sales of Company Recognized at a Point in Time Versus Over Time (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jun. 29, 2019	Jun. 30, 2018
Disaggregation of Revenue [Line Items]
Total net sales	$ 599,162	$ 596,219	$ 1,113,024	$ 1,126,889
Chemistry Consumables [Member]
Disaggregation of Revenue [Line Items]
Total net sales	100,292	99,129	199,545	197,839
Service [Member]
Disaggregation of Revenue [Line Items]
Total net sales	211,897	207,350	405,256	398,903
Net Sales Recognized at a Point in Time: [Member]
Disaggregation of Revenue [Line Items]
Total net sales	472,072	469,266	865,334	880,901
Net Sales Recognized at a Point in Time: [Member] | Instrument Systems [Member]
Disaggregation of Revenue [Line Items]
Total net sales	286,973	289,740	508,223	530,147
Net Sales Recognized at a Point in Time: [Member] | Chemistry Consumables [Member]
Disaggregation of Revenue [Line Items]
Total net sales	100,292	99,129	199,545	197,839
Net Sales Recognized at a Point in Time: [Member] | Service [Member]
Disaggregation of Revenue [Line Items]
Total net sales	84,807	80,397	157,566	152,915
Net Sales Recognized Over Time: [Member] | Service [Member]
Disaggregation of Revenue [Line Items]
Total net sales	$ 127,090	$ 126,953	$ 247,690	$ 245,988

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Recent Accounting Standard Changes and Developments - Additional Information (Detail) - USD ($) $ in Thousands	Jun. 29, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease, right of use asset	$ 91,060	$ 100,000
Lease liability	$ 91,819	$ 100,000