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: September 30, 2020 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:  0-25426  

    

NATIONAL INSTRUMENTS CORPORATION  

(Exact name of registrant as specified in its charter)  

Delaware	74-1871327
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification Number)
11500 North MoPac Expressway
Austin,	78759
Texas
(Address of principal executive offices)	(Zip Code)

Registrant's telephone number, including area code:  (512) 683-0100  

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

Title of each class	Trading symbol(s)	Name of exchange on which registered
Common Stock, $0.01 par value	NATI	Nasdaq Stock Market

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 an 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 Exchange Act). Yes ☐ No ☒ 

Indicate the number of shares outstanding of each of the issuer's classes of common stock, as of the latest practicable date.  

Class	Outstanding at October 29, 2020
Common Stock, $0.01 par value	131,245,640

1

NATIONAL INSTRUMENTS CORPORATION

INDEX  

PART I.  FINANCIAL INFORMATION		Page No.
Item 1	Financial Statements:
	Consolidated Balance Sheets
	September 30, 2020 (unaudited) and December 31, 2019	3
	Consolidated Statements of Income
	(unaudited) for the three and nine months ended September 30, 2020 and 2019	4
	Consolidated Statements of Comprehensive Income
	(unaudited) for the three and nine months ended September 30, 2020 and 2019	5
	Consolidated Statements of Cash Flows
	(unaudited) for the nine months ended September 30, 2020 and 2019	6
	Consolidated Statements of Stockholders' Equity
	(unaudited) for the three and nine months ended September 30, 2020 and 2019	7
	Notes to Consolidated Financial Statements	9
Item 2	Management's Discussion and Analysis of Financial Condition and Results of Operations	33
Item 3	Quantitative and Qualitative Disclosures about Market Risk	49
Item 4	Controls and Procedures	50
PART II.  OTHER INFORMATION
Item 1	Legal Proceedings	50
Item 1A	Risk Factors	50
Item 2	Unregistered Sales of Equity Securities and Use of Proceeds	55
Item 5	Other Information	55
Item 6	Exhibits	56
	Signatures and Certifications	57

2

PART I - FINANCIAL INFORMATION  

ITEM 1. Financial Statements

NATIONAL INSTRUMENTS CORPORATION  

CONSOLIDATED BALANCE SHEETS

(in thousands, except share and per share data)

	September 30,		December 31,
	2020		2019
Assets	(unaudited)
Current assets:
Cash and cash equivalents	$	197,319	$	194,616
Short-term investments	92,853		237,983
Accounts receivable, net	214,620		248,872
Inventories, net	209,558		200,410
Prepaid expenses and other current assets	72,956		65,477
Total current assets	787,306		947,358
Property and equipment, net	253,073		243,717
Goodwill	487,101		262,242
Intangible assets, net	183,067		84,083
Operating lease right-of-use assets	69,395		70,407
Other long-term assets	63,930		44,082
Total assets	$	1,843,872	$	1,651,889
Liabilities and stockholders' equity
Current liabilities:
Accounts payable and accrued expenses	$	48,886	$	52,192
Accrued compensation	53,496		47,732
Deferred revenue - current	116,871		131,445
Operating lease liabilities - current	16,177		13,431
Other taxes payable	41,604		40,607
Debt, current	3,500		—
Other current liabilities	50,259		20,716
Total current liabilities	330,793		306,123
Deferred income taxes	41,514		14,065
Income tax payable - non-current	61,628		69,151
Liability for uncertain tax positions	6,867		6,652
Deferred revenue - non-current	34,210		33,480
Operating lease liabilities - non-current	37,767		40,650
Debt, non-current	84,289		—
Other long-term liabilities	7,606		5,418
Total liabilities	604,674		475,539
Commitments and contingencies
Stockholders' equity:
Preferred stock:  par value $0.01;  5,000,000 shares authorized; none issued and outstanding	—		—
Common stock:  par value $0.01;  360,000,000 shares authorized; 131,245,640 shares and 130,504,535 shares issued and outstanding, respectively	1,312		1,305
Additional paid-in capital	1,012,656		953,578
Retained earnings	247,970		242,537
Accumulated other comprehensive loss	(22,740)		(21,070)
Total stockholders’ equity	1,239,198		1,176,350
Total liabilities and stockholders’ equity	$	1,843,872	$	1,651,889

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

3

NATIONAL INSTRUMENTS CORPORATION

CONSOLIDATED STATEMENTS OF INCOME

(in thousands, except per share data)

(unaudited)  

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
Net sales:
Product	$	269,651	$	305,247	$	809,890	$	882,747
Software maintenance	38,473		35,195		108,944		103,000
Total net sales	308,124		340,442		918,834		985,747
Cost of sales:
Product	88,370		84,127		254,236		240,056
Software maintenance	3,893		1,788		7,689		5,700
Total cost of sales	92,263		85,915		261,925		245,756
Gross profit	215,861		254,527		656,909		739,991
Operating expenses:
Sales and marketing	109,774		113,922		330,939		352,340
Research and development	70,802		66,558		206,648		200,981
General and administrative	37,431		35,711		92,980		92,639
Total operating expenses	218,007		216,191		630,567		645,960
Gain on sale of business/asset	—		26,842		159,753		26,842
Operating (loss) income	(2,146)		65,178		186,095		120,873
Other (expense) income	(2,001)		2,249		(2,584)		5,379
Income before income taxes	(4,147)		67,427		183,511		126,252
Provision for income taxes	475		15,783		44,588		22,697
Net (loss) income	$	(4,622)	$	51,644	$	138,923	$	103,555
Basic (loss) earnings per share	$	(0.04)	$	0.39	$	1.06	$	0.79
Weighted average shares outstanding - basic	131,419		131,385		131,017		131,896
Diluted (loss) earnings per share	$	(0.04)	$	0.39	$	1.06	$	0.78
Weighted average shares outstanding - diluted	131,419		131,889		131,671		132,890
Dividends declared per share	$	0.26	$	0.25	$	0.78	$	0.75

The accompanying notes are an integral part of these financial statements. 

4

NATIONAL INSTRUMENTS CORPORATION

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(in thousands)

(unaudited)  

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
	2020		2019		2020		2019
Net (loss) income	$	(4,622)	$	51,644	$	138,923	$	103,555
Other comprehensive income (loss), before tax and net of reclassification adjustments:
Foreign currency translation adjustment	8,483		(8,500)		6,507		(9,303)
Unrealized (loss) gain on securities available-for-sale	(163)		(419)		(317)		1,494
Unrealized (loss) gain on derivative instruments	(9,530)		1,627		(10,128)		1,359
Other comprehensive (loss) income, before tax	(1,210)		(7,292)		(3,938)		(6,450)
Tax (benefit) expense related to items of other comprehensive income	(2,335)		414		(2,268)		355
Other comprehensive income (loss), net of tax	1,125		(7,706)		(1,670)		(6,805)
Comprehensive (loss) income	$	(3,497)	$	43,938	$	137,253	$	96,750

The accompanying notes are an integral part of these financial statements.

5

NATIONAL INSTRUMENTS CORPORATION

CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(unaudited)  

	Nine Months Ended
	September 30,
	2020		2019
Cash flow from operating activities:
Net income	$	138,923	$	103,555
Adjustments to reconcile net income to net cash provided by operating activities:
Disposal gain on sale of business/asset	(159,753)		(26,842)
Depreciation and amortization	61,228		54,546
Stock-based compensation	42,556		38,054
Deferred income taxes	(932)		(1,461)
Changes in operating assets and liabilities	26,762		(18,507)
Net cash provided by operating activities	108,784		149,345
Cash flow from investing activities:
Acquisitions, net of cash acquired	(334,981)		—
Capital expenditures	(36,573)		(47,183)
Proceeds from sale of assets/business, net of cash divested	160,266		32,492
Capitalization of internally developed software	(2,806)		(7,179)
Additions to other intangibles	(1,045)		(1,132)
Acquisitions of equity-method investments	(7,502)		(13,670)
Purchases of short-term investments	(206,330)		(141,074)
Sales and maturities of short-term investments	351,597		204,046
Net cash (used in) provided by investing activities	(77,374)		26,300
Cash flow from financing activities:
Proceeds from revolving line of credit	20,000		—
Proceeds from term loan	70,000		—
Payments on term loan	(875)		—
Debt issuance costs	(1,480)		—
Proceeds from issuance of common stock	24,971		25,823
Repurchase of common stock	(39,244)		(137,171)
Dividends paid	(102,396)		(99,083)
Net cash used in financing activities	(29,024)		(210,431)
Effect of exchange rate changes on cash	317		(1,827)
Net change in cash and cash equivalents	2,703		(36,613)
Cash and cash equivalents at beginning of period	194,616		259,386
Cash and cash equivalents at end of period	$	197,319	$	222,773

The accompanying notes are an integral part of these financial statements.   

6

NATIONAL INSTRUMENTS CORPORATION  

CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY

(in thousands, except share data and per share data)

(unaudited)

	September 30, 2020
	(Unaudited)
	Common Stock Shares	Common Stock Amount		Additional-Paid in Capital		Retained Earnings		Accumulated Other Comprehensive Income/(Loss)		Total Stockholders' Equity
Balance at June 30, 2020	131,436,108	$	1,314	$	993,058	$	299,132	$	(23,865)	$	1,269,639
Net loss	—	—		—		(4,622)		—		(4,622)
Other comprehensive income, net of tax	—	—		—		—		1,125		1,125
Issuance of common stock under employee plans, including tax benefits	256,034	2		7,715		—		—		7,717
Stock-based compensation	—	—		15,142		—		—		15,142
Repurchase of common stock	(446,502)	(4)		(3,259)		(12,300)		—		(15,563)
Dividends paid (1)	—	—		—		(34,240)		—		(34,240)
Balance at September 30, 2020	131,245,640	1,312		1,012,656		247,970		(22,740)		1,239,198
	Common Stock Shares	Common Stock Amount		Additional-Paid in Capital		Retained Earnings		Accumulated Other Comprehensive Loss		Total Stockholders' Equity
Balance at December 31, 2019	130,504,535	1,305		953,578		242,537		(21,070)		1,176,350
Net income	—	—		—		138,923		—		138,923
Other comprehensive loss, net of tax	—	—		—		—		(1,670)		(1,670)
Issuance of common stock under employee plans, including tax benefits	1,855,806	18		24,953		—		—		24,971
Stock-based compensation	—	—		42,264		—		—		42,264
Repurchase of common stock	(1,114,701)	(11)		(8,139)		(31,094)		—		(39,244)
Dividends paid (1)	—	—		—		(102,396)		—		(102,396)
Balance at September 30, 2020	131,245,640	$	1,312	$	1,012,656	$	247,970	$	(22,740)	$	1,239,198

(1) Cash dividends declared per share of common stock were $0.26 for the three months ended September 30, 2020, and $0.78 for the nine months ended September 30, 2020.

The accompanying notes are an integral part of these financial statements. 

7

	September 30, 2019
	(Unaudited)
	Common Stock Shares	Common Stock Amount		Additional-Paid in Capital		Retained Earnings		Accumulated Other Comprehensive Income/(Loss)		Total Stockholders' Equity
Balance at June 30, 2019	131,884,775	$	1,319	$	924,801	$	264,484	$	(16,030)	$	1,174,574
Net income	—	—		—		51,644		—		51,644
Other comprehensive loss, net of tax	—	—		—		—		(7,706)		(7,706)
Issuance of common stock under employee plans, including tax benefits	230,400	3		8,175		—		—		8,178
Stock-based compensation	—	—		13,284		—		—		13,284
Repurchase of common stock	(1,056,078)	(11)		(7,139)		(37,647)		—		(44,797)
Dividends paid (1)	—	—		—		(33,016)		—		(33,016)
Balance at September 30, 2019	131,059,097	1,311		939,121		245,465		(23,736)		1,162,161
	Common Stock Shares	Common Stock Amount		Additional-Paid in Capital		Retained Earnings		Accumulated Other Comprehensive Income/(Loss)		Total Stockholders' Equity
Balance at December 31, 2018	132,655,941	1,327		897,544		356,418		(16,931)		1,238,358
Net income	—	—		—		103,555		—		103,555
Other comprehensive loss, net of tax	—	—		—		—		(6,805)		(6,805)
Issuance of common stock under employee plans, including tax benefits	1,608,832	16		25,807		—		—		25,823
Stock-based compensation	—	—		37,484		—		—		37,484
Repurchase of common stock	(3,205,676)	(32)		(21,714)		(115,425)		—		(137,171)
Dividends paid (1)	—	—		—		(99,083)		—		(99,083)
Balance at September 30, 2019	131,059,097	$	1,311	$	939,121	$	245,465	$	(23,736)	$	1,162,161

(1) Cash dividends declared per share of common stock were $0.25 for the three months ended September 30, 2019, and $0.75 for the nine months ended September 30, 2019.

The accompanying notes are an integral part of these financial statements.

8

NATIONAL INSTRUMENTS CORPORATION

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS  

Note 1 – Basis of presentation  

The accompanying unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto for the fiscal year ended December 31, 2019, included in our Annual Report on Form 10-K filed with the Securities and Exchange Commission ("SEC") on February 20, 2020 (the "Form 10-K"). In our opinion, the accompanying consolidated financial statements reflect all adjustments (consisting only of normal recurring items) considered necessary to present fairly our financial position at September 30, 2020 and December 31, 2019, the results of our operations and comprehensive income for three and nine months ended September 30, 2020 and 2019, our cash flows for the nine months ended September 30, 2020 and 2019 and our statement of stockholders' equity for the three and nine months ended September 30, 2020 and 2019. Our operating results for the three and nine months ended September 30, 2020 are not necessarily indicative of the results that may be expected for the year ending December 31, 2020. These financial statements have been prepared in accordance with accounting principles generally accepted in the United States.

Reclassifications

As further discussed below, certain prior period amounts have been reclassified to conform to the current period presentation. The reclassifications had no impact on our previously reported net income or cash flows:

•Before the second quarter of 2020, we included net sales attributable to our operations in India within the EMEIA region in Note 2 - Revenue of Notes to Consolidated Financial Statements. In the second quarter of 2020, we began including these amounts within the APAC (Australia, India, New Zealand, Southeast Asia, China, South Korea and Japan) geographic region, to reflect recent changes within our organizational structure. We have recast historical comparative information to conform to the September 30, 2020 presentation. Refer to Note 2 - Revenue of Notes to Consolidated Financial Statements for our revenue disaggregated by geographic region which now include the Americas (United States, Canada and Latin America), EMEA (Europe, Middle East, and Africa) and APAC.

•Before the second quarter of 2020, we presented “Interest income”, "Net foreign exchange gain (loss)", and "Other income (loss)" separately on the consolidated statements of income. In the second quarter of 2020, we began presenting these amounts within “Other (expense) income” in the consolidated statements of income for all periods presented. Refer to "Other (expense) income" in Note 1 - Basis of Presentation of Notes to Consolidated Financial Statements for additional information on the amounts that comprise "Other (expense) income".

Recently Adopted Accounting Pronouncements

Current Expected Credit Losses ("CECL")

In June 2016, the Financial Accounting Standards Board ("FASB") issued ASU No. 2016-13, "Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments." The ASU replaces the incurred-loss impairment methodology and requires immediate recognition of estimated credit losses expected to occur for most financial assets, including trade receivables. Credit losses on available-for-sale debt securities with unrealized losses will be recognized as allowances for credit losses limited to the amount by which fair value is below amortized cost. We adopted the new standard on January 1, 2020 and the impact of the adoption was not material to our consolidated financial statements as credit losses are not expected to be significant based on historical collection trends, the financial condition of payment partners, and external market factors. We will continue to actively monitor the impact of the recent coronavirus (COVID-19) pandemic on expected credit losses.

9

Implementation Costs Incurred in a Cloud Computing Arrangement

In August 2018, the FASB issued ASU 2018-15, “Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract,” which clarifies the accounting for implementation costs in cloud computing arrangements. The new standard aligns the treatment of implementation costs incurred by customers in cloud computing arrangements that are service contracts with the treatment of similar costs incurred to develop or obtain internal-use software. Under the new standard, implementation costs are deferred and presented in the same financial statement caption on the condensed consolidated balance sheet as a prepayment of related arrangement fees. The deferred costs are recognized over the term of the arrangement in the same financial statement caption in the condensed consolidated income statement as the related fees of the arrangement. We adopted the new standard on January 1, 2020. The new standard did not have a material impact on our consolidated financial statements and related disclosures.

Fair Value Measurements

In August 2018, the FASB issued ASU 2018-13, “Disclosure Framework — Changes to the Disclosure Requirements for Fair Value Measurement,” which modifies the disclosure requirements on fair value measurements. We adopted the new standard on January 1, 2020. The new standard did not have a material impact on our consolidated financial statements and related disclosures.

Income Taxes

In December 2019, the FASB issued ASU 2019-12, “Income Taxes — Simplifying the Accounting for Income Taxes (Topic 740),” which simplifies the accounting for income taxes by removing certain exceptions to the general principles in Topic 740. The amendments in this ASU also improve consistency and simplify other areas of Topic 740 by clarifying and amending existing guidance. The amendments in this ASU will be applied using different approaches depending on what the specific amendment relates to and, for public entities, are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. An entity is permitted to early adopt the guidance, and we early adopted ASU 2019-12 as of January 1, 2020. The adoption did not have a material impact on our consolidated financial statements and related disclosures.

Disclosures about Acquired and Disposed Businesses

In May 2020, the SEC adopted Release No. 33-10786 "Amendments to Financial Disclosures about Acquired and Disposed Businesses" ("Release No. 33-10786") which includes amendments to certain of its rules and forms related to the disclosure of financial information regarding acquired or disposed businesses. Among other changes, the amendments impact SEC rules relating to (1) the definition of “significant” subsidiaries, (2) requirements to provide financial statements for “significant” acquisitions, and (3) revisions to the formulation and usage of pro forma financial information. Release No. 33-10786 is effective on January 1, 2021, however, voluntary early adoption is permitted as long as all amendments are adopted in their entirety. We elected to early adopt all provisions of Release No. 33-10786 during the second quarter of 2020.

Summary of Significant Accounting Policies

As discussed above, we adopted the new expected credit loss standard as of January 1, 2020. There were no other significant changes in our accounting policies during the three and nine months ended September 30, 2020 compared to the significant accounting policies described in our Form 10-K.

Divestitures

AWR

On January 15, 2020, we completed the sale of our AWR Corporation subsidiary ("AWR") for approximately $161 million. We recognized a gain of approximately $160 million on the sale. The gain is included within "Gain on sale of business/asset" in the consolidated statements of income, which also included approximately $1 million of transaction costs.

10

The divestiture of AWR resulted in the derecognition of the following assets and liabilities (in thousands):

Cash	$	1,027
Accounts receivable, net	7,233
Prepaid and other current assets	283
Goodwill	7,221
Other non-current assets	556
Total Assets	16,320
Deferred revenue	15,296
Other current liabilities	940
Cumulative translation adjustment	(660)
Total liabilities and stockholders' equity	15,576
Total assets divested, net (including cash)	$	744

Other (Expense) Income

Other (expense) income, net consisted of the following amounts (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	(Unaudited)				(Unaudited)
	2020		2019		2020		2019
Interest income	$	414	$	1,930	$	3,724	$	6,187
Interest expense	(973)		—		(1,115)		—
Loss from equity-method investments	(627)		(239)		(2,559)		(406)
Net foreign exchange loss	(676)		(378)		(2,019)		(1,623)
Other	(139)		936		(615)		1,221
Other (expense) income, net	$	(2,001)	$	2,249	$	(2,584)	$	5,379

Earnings Per Share

Basic earnings per share (“EPS”) is computed by dividing net income by the weighted average number of common shares outstanding during each period. Diluted EPS is computed by dividing net income by the weighted average number of common shares and common share equivalents outstanding (if dilutive) during each period. The number of common share equivalents, which includes restricted stock units ("RSUs"), is computed using the treasury stock method. The reconciliation of the denominators used to calculate basic EPS and diluted EPS for the three and nine months ended September 30, 2020 and 2019, are as follows (in thousands):

	Three Months Ended September 30,		Nine Months Ended September 30,
	(Unaudited)		(Unaudited)
	2020	2019	2020	2019
Weighted average shares outstanding-basic	131,419	131,385	131,017	131,896
Plus: Common share equivalents
RSUs	—	504	654	994
Weighted average shares outstanding-diluted	131,419	131,889	131,671	132,890

Stock awards to acquire 3,490,700 shares and 1,611,000 shares for the three months ended September 30, 2020 and 2019, respectively, and 276,000 shares and 568,000 shares for the nine months ended September 30, 2020 and 2019, respectively, were excluded in the computations of diluted EPS because the effect of including the stock awards would have been anti-dilutive.

11

Other Current Liabilities

Other current liabilities on our consolidated balance sheet includes the following amounts (in thousands):

	As of September 30, 2020		As of December 31,
	(unaudited)		2019
Income taxes payable - current	$	23,487	$	6,791
Other	26,772		13,925
Total	$	50,259	$	20,716

Note 2 - Revenue

Revenue Recognition

Revenue is recognized upon transfer of control of the promised products or services to customers in an amount that reflects the consideration we expect to receive in exchange for those products or services. We enter into contracts that can include various combinations of our products or services, which are generally capable of being distinct and accounted for as separate performance obligations. Revenue is recognized net of allowances for returns and any taxes collected from customers, which are subsequently remitted to governmental authorities.

Disaggregation of Revenues

We disaggregate revenue from contracts with customers based on the timing of transfer of goods or services to customers (point-in-time or over time) and geographic region based on the billing location of the customer. Before the second quarter of 2020, we included net sales attributable to our operations in India within the EMEIA region. In the second quarter of 2020, we began including these amounts within the APAC geographic region, to reflect recent changes within our organizational structure. We have recast historical comparative information to conform to the September 30, 2020 presentation. The geographic regions are now presented as the Americas, EMEA and APAC to reflect this change.

Total net sales based on the disaggregation criteria described above are as follows:

			Three Months Ended September 30,
(In thousands)			(Unaudited)
	2020						2019
Net sales:	Point-in-Time(1)		Over Time		Total		Point-in-Time(1)		Over Time		Total
Americas	$	107,808	$	19,241	$	127,049	$	119,895	$	23,222	$	143,117
EMEA	57,988		20,551		78,539		70,076		19,662		89,738
APAC	92,050		10,486		102,536		98,161		9,426		107,587
Total net sales(1)	$	257,846	$	50,278	$	308,124	$	288,132	$	52,310	$	340,442
(1) Net sales contains hedging gains and losses, which do not represent revenues recognized from customers. See Note - 5 Derivatives instruments and hedging activities of Notes to Consolidated Financial Statements for more information on the impact of our hedging activities on our results of operations.

12

			Nine Months Ended September 30,
(In thousands)			(Unaudited)
	2020						2019
Net sales:	Point-in-Time(1)		Over Time		Total		Point-in-Time(1)		Over Time		Total
Americas	$	316,220	$	57,554	$	373,774	$	325,349	$	69,337	$	394,686
EMEA	181,330		58,594		239,924		216,644		57,411		274,055
APAC	274,341		30,795		305,136		290,140		26,866		317,006
Total net sales(1)	$	771,891	$	146,943	$	918,834	$	832,133	$	153,614	$	985,747
(1) Net sales contains hedging gains and losses, which do not represent revenues recognized from customers. See Note - 5 Derivatives instruments and hedging activities of Notes to Consolidated Financial Statements for more information on the impact of our hedging activities on our results of operations.

Information about Contract Balances

Amounts collected in advance of services being provided are accounted for as deferred revenue. Nearly all of our deferred revenue balance is related to extended hardware and software maintenance contracts. Payment terms and conditions vary by contract type, although payment is typically due within 30 to 90 days of contract inception. In instances where the timing of revenue recognition differs from the timing of invoicing, we have determined our contracts generally do not include a significant financing component. The primary purpose of our invoicing terms is to provide customers with simplified and predictable ways of purchasing our products and services, not to receive financing from our customers, such as invoicing at the beginning of a subscription term with a portion of the revenue recognized ratably over the contract period, or to provide customers with financing, such as multi-year on-premises licenses that are invoiced annually with revenue recognized upfront.

Changes in deferred revenue, current and non-current, during the nine months ended September 30, 2020 were as follows:

	Amount
	(In thousands)
Balance as of December 31, 2019	$	164,925
Deferral of revenue billed in current period, net of recognition	95,934
Recognition of revenue deferred in prior periods	(103,274)
Acquisitions/Divestitures	(7,955)
Foreign currency translation impact	1,451
Balance as of September 30, 2020 (unaudited)	$	151,081

For the nine months ended September 30, 2020, revenue recognized from performance obligations satisfied in prior periods (for example, due to changes in transaction price) was not material. Amounts recognized as revenue in excess of amounts billed are recorded as unbilled receivables. Unbilled receivables which are anticipated to be invoiced in the next twelve months are included in "Other current assets" and "Other long-term assets" on the consolidated balance sheet. Based on the nature of our contracts with customers, we do not typically recognize unbilled receivables related to revenues recognized in excess of amounts billed. For the nine months ended September 30, 2020, amounts recognized related to unbilled receivables were not material.

Unsatisfied Performance Obligations

Revenue expected to be recognized in any future period related to remaining performance obligations, excluding revenue pertaining to contracts that have an original expected duration of one year or less, and excluding contracts where revenue is recognized as invoiced, was approximately $84 million as of September 30, 2020. Since we typically invoice customers at contract inception, this amount is included in our current and non-current deferred revenue balances. As of September 30, 2020, we expect to recognize approximately 15% of the revenue related to these unsatisfied performance obligations during the remainder of 2020, 43% during 2021, and 42% thereafter.

13

Assets Recognized from the Costs to Obtain a Contract with a Customer

We recognize an asset for the incremental costs of obtaining a contract with a customer if we expect the benefit of those costs to be longer than one year. We have determined that certain sales incentive programs meet the requirements to be capitalized. Capitalized incremental costs related to initial contracts and renewals are amortized over the same period because the commissions paid on both the initial contract and renewals are commensurate with one another. Total capitalized costs to obtain a contract were not material during the periods presented and are included in other long-term assets on our consolidated balance sheets.

Note 3 – Short-term investments  

The following tables summarize unrealized gains and losses related to our short-term investments designated as available-for-sale debt securities:

	As of September 30, 2020
(In thousands)	(Unaudited)
			Gross		Gross
	Adjusted Cost		Unrealized Gain		Unrealized Loss		Fair Value
Corporate bonds	$	92,610	$	245	$	(2)	$	92,853
Total Short-term investments	$	92,610	$	245	$	(2)	$	92,853

(In thousands)	As of December 31, 2019
			Gross		Gross
	Adjusted Cost		Unrealized Gain		Unrealized Loss		Fair Value
Corporate bonds	$	237,423	$	628	$	(68)	$	237,983
Total Short-term investments	$	237,423	$	628	$	(68)	$	237,983

The following tables summarize the contractual maturities of our short-term investments designated as available-for-sale debt securities:

	As of September 30, 2020
(In thousands)	(Unaudited)
	Adjusted Cost		Fair Value
Due in less than 1 year	$	88,194	$	88,438
Due in 1 to 5 years	4,416		4,415
Total available-for-sale debt securities	$	92,610	$	92,853
Due in less than 1 year	Adjusted Cost		Fair Value
Corporate bonds	$	88,194	$	88,438
Total available-for-sale debt securities	$	88,194	$	88,438
Due in 1 to 5 years	Adjusted Cost		Fair Value
Corporate bonds	$	4,416	$	4,415
Total available-for-sale debt securities	$	4,416	$	4,415

Equity-Method Investments

The carrying value of our equity method investments was $20 million as of September 30, 2020. Our proportionate share of the income from equity-method investments is included within "Other (expense) income". Refer to Note 1 - Basis of Presentation for additional information on these amounts for three and nine months ended September 30, 2020 and 2019.

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Note 4 – Fair value measurements 

We define fair value to be the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities required or permitted to be recorded at fair value, we consider the principal or most advantageous market that market participants may use when pricing the asset or liability.   

We follow a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. Fair value measurement is determined based on the lowest level input that is significant to the fair value measurement. The three values of the fair value hierarchy are the following:   

Level 1 – Quoted prices in active markets for identical assets or liabilities   

Level 2 – Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly   

Level 3 – Inputs that are not based on observable market data   

Assets and liabilities measured at fair value on a recurring basis are summarized below:

	Fair Value Measurements at Reporting Date Using
(In thousands)	(Unaudited)
Description	September 30, 2020		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash and cash equivalents available for sale:
Money Market Funds	$	82,730	$	82,730	$	—	$	—
Short-term investments available for sale:
Corporate notes and bonds	92,853		—		92,853		—
Derivatives	5,363		—		5,363		—
Total Assets	$	180,946	$	82,730	$	98,216	$	—
Liabilities
Derivatives	$	(10,777)	$	—	$	(10,777)	$	—
Total Liabilities	$	(10,777)	$	—	$	(10,777)	$	—

(In thousands)	Fair Value Measurements at Reporting Date Using
Description	December 31, 2019		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash and cash equivalents available for sale:
Money Market Funds	$	87,397	$	87,397	$	—	$	—
Corporate notes and bonds	9,962		—		9,962		—
Short-term investments available for sale:
Corporate bonds	237,983		—		237,983		—
Derivatives	8,209		—		8,209		—
Total Assets	$	343,551	$	87,397	$	256,154	$	—
Liabilities
Derivatives	$	(2,872)	$	—	$	(2,872)	$	—
Total Liabilities	$	(2,872)	$	—	$	(2,872)	$	—

15

We value our available-for-sale short-term investments based on pricing from third party pricing vendors, who may use quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value. We classify all of our fixed income available-for-sale securities as having Level 2 inputs. The valuation techniques used to measure the fair value of our financial instruments having Level 2 inputs were derived from non-binding market consensus prices that are corroborated by observable market data, quoted market prices for similar instruments, or pricing models, such as discounted cash flow techniques. We believe all of these sources reflect the credit risk associated with each of our available-for-sale short-term investments. Short-term investments available-for-sale consists of debt securities issued by states of the U.S. and political subdivisions of the U.S., corporate debt securities and debt securities issued by U.S. government organizations and agencies. All of our short-term investments available-for-sale have contractual maturities of less than 60 months.  

Derivatives include foreign currency forward contracts. Our foreign currency forward contracts are valued using an income approach (Level 2) based on the spot rate less the contract rate multiplied by the notional amount. We consider counterparty credit risk in the valuation of our derivatives. However, counterparty credit risk did not impact the valuation of our derivatives during the nine months ended September 30, 2020. There were no transfers in or out of Level 1 or Level 2 during the nine months ended September 30, 2020.  

As of September 30, 2020, our short-term investments did not include sovereign debt from any country other than the United States. The majority of our short-term investments that are located outside of the U.S. are denominated in the U.S. dollar with the exception of $5 million U.S. dollar equivalent of corporate bonds that are denominated in Euro.

We did not have any items that were measured at fair value on a nonrecurring basis at September 30, 2020 and December 31, 2019. The carrying value of net accounts receivable, accounts payable, and long-term debt contained in the consolidated balance sheets approximates fair value.

Note 5 – Derivative instruments and hedging activities  

We recognize all of our derivative instruments as either assets or liabilities in our statement of financial position at fair value. The accounting for changes in the fair value (i.e., gains or losses) of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and further, on the type of hedging relationship. For those derivative instruments that are designated and qualify as hedging instruments, we designate the hedging instrument, based upon the exposure being hedged, as a fair value hedge, cash flow hedge, or a hedge of a net investment in a foreign operation.

We have operations in approximately 45 countries. Sales outside of the Americas accounted for approximately 59% and 58% of our net sales during the three months ended September 30, 2020 and 2019, and approximately 59% and 60% the nine months ended September 30, 2020 and 2019, respectively. Our activities expose us to a variety of market risks, including the effects of changes in foreign currency exchange rates. These financial risks are monitored and managed by us as an integral part of our overall risk management program.   

We maintain a foreign currency risk management strategy that uses derivative instruments (foreign currency forward contracts) to help protect our earnings and cash flows from fluctuations caused by the volatility in currency exchange rates. Movements in foreign currency exchange rates pose a risk to our operations and competitive position, in that exchange rate changes may affect our profitability and cash flow, and the business or pricing strategies of our non-U.S. based competitors.

The vast majority of our foreign sales are denominated in the customers’ local currency. We purchase foreign currency forward contracts as hedges of forecasted sales that are denominated in foreign currencies and as hedges of foreign currency denominated financial assets or liabilities. These contracts are entered into to help protect against the risk that the eventual dollar-net-cash inflows resulting from such sales or firm commitments will be adversely affected by changes in exchange rates. We also purchase foreign currency forward contracts as hedges of forecasted expenses that are denominated in foreign currencies. These contracts are entered into to help protect against the risk that the eventual dollar-net-cash outflows resulting from foreign currency operating and cost of sales expenses will be adversely affected by changes in exchange rates.

We designate foreign currency forward contracts as cash flow hedges of forecasted net sales or forecasted expenses. In addition, we hedge our foreign currency denominated balance sheet exposures using foreign currency forward contracts that are not designated as hedging instruments. None of our derivative instruments contain a credit-risk-related contingent feature.

16

 Cash flow hedges  

To help protect against the reduction in value caused by a fluctuation in foreign currency exchange rates of forecasted foreign currency cash flows resulting from international sales over the next one to three years, we have instituted a foreign currency cash flow hedging program. We hedge portions of our forecasted net sales and forecasted expenses denominated in foreign currencies with forward contracts. For forward contracts, when the dollar strengthens significantly against the foreign currencies, the change in the present value of future foreign currency cash flows may be offset by the change in the fair value of the forward contracts designated as hedges. We purchase foreign currency forward contracts for up to 100% of our forecasted exposures in selected currencies (primarily in Euro, Japanese yen, Hungarian forint, British pound, Malaysian ringgit, Korean won and Chinese yuan) and limit the duration of these contracts to 40 months or less.  

For derivative instruments that are designated and qualify as a cash flow hedge, the gain or loss on the derivative is reported as a component of accumulated other comprehensive income ("OCI") and reclassified into earnings in the same line item (net sales, operating expenses, or cost of sales) associated with the forecasted transaction and in the same period or periods during which the hedged transaction affects earnings. Hedge effectiveness of foreign currency forwards designated as cash flow hedges are measured by comparing the hedging instrument’s cumulative change in fair value from inception to maturity to the forecasted transaction’s terminal value.

We held forward contracts designated as cash flow hedges with the following notional amounts:

(In thousands)	US Dollar Equivalent
	As of September 30, 2020		As of December 31,
	(Unaudited)		2019
British pound	$	23,251	$	13,988
Chinese yuan	57,943		32,970
Euro	209,385		130,122
Hungarian forint	89,962		95,228
Japanese yen	83,503		53,527
Korean won	26,918		24,728
Malaysian ringgit	41,681		32,725
Total forward contracts notional amount	$	532,643	$	383,288

The contracts in the foregoing table had contractual maturities of 36 months or less at September 30, 2020 and December 31, 2019.  

At September 30, 2020, we expect to reclassify $0.6 million of losses on derivative instruments from accumulated OCI to net sales during the next twelve months when the hedged international sales occur, $1.4 million of losses on derivative instruments from accumulated OCI to cost of sales during the next twelve months when the hedged cost of sales are incurred and $1.0 million of losses on derivative instruments from accumulated OCI to operating expenses during the next twelve months when the hedged operating expenses occur. Expected amounts are based on derivative valuations at September 30, 2020. Actual results may vary materially as a result of changes in the corresponding exchange rates subsequent to this date.  

The gains and losses recognized in earnings due to hedge ineffectiveness were not material for each of the nine months ended September 30, 2020 and 2019 and are included as a component of net income under the line item “Other (expense) income.”

Other Derivatives  

Other derivatives not designated as hedging instruments consist primarily of foreign currency forward contracts that we use to hedge our foreign denominated net receivable or net payable positions to help protect against the change in value caused by a fluctuation in foreign currency exchange rates. We typically attempt to hedge up to 90% of our outstanding foreign denominated net receivables or net payables and typically limit the duration of these foreign currency forward contracts to approximately 90 days or less. The gain or loss on the derivatives as well as the offsetting gain or loss on the hedge item attributable to the hedged risk is recognized in current earnings under the line item “Other (expense) income.” As of September 30, 2020 and December 31, 2019, we held foreign currency forward contracts that were not designated as hedging instruments with a notional amount of $87 million and $41 million, respectively.   

17

The following tables present the fair value of derivative instruments on our Consolidated Balance Sheets at September 30, 2020 and December 31, 2019, respectively.   

	Asset Derivatives
	September 30, 2020			December 31, 2019
(In thousands)	(Unaudited)
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Derivatives designated as hedging instruments
Foreign exchange contracts - ST forwards	Prepaid expenses and other current assets	$	2,314	Prepaid expenses and other current assets	$	7,039
Foreign exchange contracts - LT forwards	Other long-term assets	2,639		Other long-term assets	970
Total derivatives designated as hedging instruments		$	4,953		$	8,009
Derivatives not designated as hedging instruments
Foreign exchange contracts - ST forwards	Prepaid expenses and other current assets	$	411	Prepaid expenses and other current assets	$	200
Total derivatives not designated as hedging instruments		$	411		$	200
Total derivatives		$	5,364		$	8,209

	Liability Derivatives
	September 30, 2020			December 31, 2019
(In thousands)	(Unaudited)
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Derivatives designated as hedging instruments
Foreign exchange contracts - ST forwards	Other current liabilities	$	(5,305)	Other current liabilities	$	(2,089)
Foreign exchange contracts - LT forwards	Other long-term liabilities	(4,230)		Other long-term liabilities	(351)
Total derivatives designated as hedging instruments		$	(9,535)		$	(2,440)
Derivatives not designated as hedging instruments
Foreign exchange contracts - ST forwards	Other current liabilities	$	(1,241)	Other current liabilities	$	(432)
Total derivatives not designated as hedging instruments		$	(1,241)		$	(432)
Total derivatives		$	(10,776)		$	(2,872)

18

The following tables present the effect of derivative instruments on our Consolidated Statements of Income for the three months ended September 30, 2020 and 2019, respectively:

September 30, 2020
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship	Gain or (Loss) Recognized in OCI on Derivative		Location of Gain or (Loss) Reclassified from Accumulated OCI into Income	Gain or (Loss) Reclassified from Accumulated OCI into Income
Foreign exchange contracts - forwards	$	(12,524)	Net sales	$	334
Foreign exchange contracts - forwards	1,849		Cost of sales	(448)
Foreign exchange contracts - forwards	1,144		Operating expenses	(266)
Total	$	(9,531)		$	(380)

September 30, 2019
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship	Gain or (Loss) Recognized in OCI on Derivative		Location of Gain or (Loss) Reclassified from Accumulated OCI into Income	Gain or (Loss) Reclassified from Accumulated OCI into Income
Foreign exchange contracts - forwards	$	6,736	Net sales	$	3,291
Foreign exchange contracts - forwards	(2,946)		Cost of sales	(176)
Foreign exchange contracts - forwards	(2,163)		Operating expenses	(112)
Total	$	1,627		$	3,003

(In thousands)
Derivatives not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income	Amount of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income
		September 30, 2020		September 30, 2019
		(Unaudited)		(Unaudited)
Foreign exchange contracts - forwards	Other expense (income)	$	(267)	287
Total		$	(267)	$	287

19

The following tables present the effect of derivative instruments on our Consolidated Statements of Income for the nine months ended September 30, 2020 and 2019, respectively:

September 30, 2020
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship	Gain or (Loss) Recognized in OCI on Derivative		Location of Gain or (Loss) Reclassified from Accumulated OCI into Income	Gain or (Loss) Reclassified from Accumulated OCI into Income
Foreign exchange contracts - forwards	$	(6,800)	Net sales	$	5,594
Foreign exchange contracts - forwards	(1,898)		Cost of sales	(1,817)
Foreign exchange contracts - forwards	(1,430)		Operating expenses	(1,348)
Total	(10,128)			$	2,429

September 30, 2019
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship	Gain or (Loss) Recognized in OCI on Derivative		Location of Gain or (Loss) Reclassified from Accumulated OCI into Income	Gain or (Loss) Reclassified from Accumulated OCI into Income
Foreign exchange contracts - forwards	$	7,186	Net sales	$	7,687
Foreign exchange contracts - forwards	(3,386)		Cost of sales	(217)
Foreign exchange contracts - forwards	(2,441)		Operating expenses	(158)
Total	$	1,359		$	7,312

(In thousands)
Derivatives not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income	Amount of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income
		September 30, 2020		September 30, 2019
		(Unaudited)		(Unaudited)
Foreign exchange contracts - forwards	Other income (expense)	$	(163)	(82)
Total		$	(163)	$	(82)

20

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Note 6 – Inventories, net 

Inventories, net consist of the following: 

	September 30, 2020		December 31,
(In thousands)	(Unaudited)		2019
Raw materials	$	110,773	$	110,078
Work-in-process	12,235		10,613
Finished goods	86,550		79,719
Total	$	209,558	$	200,410

Note 7 – Intangible assets and goodwill, net  

Intangible assets at September 30, 2020 and December 31, 2019 are as follows:

	September 30, 2020
(In thousands)	(Unaudited)						December 31, 2019
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Capitalized software development costs	$	123,483	$	(86,096)	$	37,387	$	132,789	$	(76,910)	$	55,879
Acquired technology	105,008		(14,726)		90,282		91,900		(87,917)		3,983
Patents	36,531		(26,008)		10,523		35,609		(23,993)		11,616
Other	74,671		(29,796)		44,875		44,490		(31,885)		12,605
Total	$	339,693	$	(156,626)	$	183,067	$	304,788	$	(220,705)	$	84,083

Software development costs capitalized for the three months ended September 30, 2020 and 2019 were $(0.2) million and $2.8 million, respectively, and related amortization expense was $6.9 million and $7.1 million, respectively. For the nine months ended September 30, 2020 and 2019, capitalized software development costs were $3.1 million and $7.5 million, respectively, and related amortization expense was $21.6 million and $20.9 million, respectively. Capitalized software development costs for the three months ended September 30, 2020 and 2019 included costs related to stock-based compensation of $0.1 million and $0.2 million, respectively. For each of the nine months ended September 30, 2020 and 2019, capitalized software development costs included costs related to stock-based compensation of $0.3 million. The related amounts in the table above are net of fully amortized assets.

Amortization of capitalized software development costs is computed on an individual product basis for those products available for market and is recognized based on the product’s estimated economic life, generally three to six years. Acquired technology and other intangible assets are amortized over their useful lives, which range from three to eight years. Patents are amortized using the straight-line method over their estimated period of benefit, generally 10 to 17 years. Total intangible assets amortization expenses were $14.2 million and $9.2 million for the three months ended September 30, 2020 and 2019, respectively, and $32.9 million and $27.3 million for the nine months ended September 30, 2020 and 2019, respectively.

Goodwill

The carrying amount of goodwill as of September 30, 2020, was as follows:

	Amount
	(In thousands)
Balance as of December 31, 2019	$	262,242
Acquisition	227,280
Foreign currency translation impact	4,800
Divestiture	(7,221)
Balance as of September 30, 2020 (unaudited)	$	487,101

21

The excess purchase price over the fair value of assets acquired is recorded as goodwill. As businesses are acquired, we assign assets acquired (including goodwill) and liabilities assumed to either our existing reporting unit or a newly identified reporting unit as of the date of the acquisition. In the event a disposal group meets the definition of a business, goodwill is allocated to the disposal group based on the relative fair value of the disposal group to the related reporting unit. As we have one operating segment comprised of components with similar economic characteristics, we allocate goodwill to one reporting unit for goodwill impairment testing. Goodwill is tested for impairment on an annual basis, and between annual tests if indicators of potential impairment exist, using a fair-value-based approach based on the market capitalization of the reporting unit. Our annual impairment test is performed in the fourth quarter of each year.

No impairment of goodwill was identified during the nine months ended September 30, 2020 or the twelve months ended December 31, 2019.

Note 8 – Leases

We have operating leases for corporate offices, automobiles, and certain equipment. Our leases have remaining terms of 1 year to 94 years, some of which may include options to extend the leases for up to 9 years, and some of which may include options to terminate the leases within 1 year. Leases with an initial term of 12 months or less are not recorded on the balance sheet. We recognize lease expense for these leases on a straight-line basis over the lease term. Amounts related to finance lease activities and income from leasing activities were not material for the periods presented.

The components of operating lease expense were as follows (unaudited):

	Three Months Ended				Nine Months Ended
(In thousands)	September 30, 2020		September 30, 2019		September 30, 2020		September 30, 2019
Operating Lease Cost (a)	$	4,869	$	5,456	$	15,941	$	16,951
(a) includes variable and short-term lease costs

Maturities of lease liabilities as of September 30, 2020 were as follows (unaudited):

(In thousands)
Years ending December 31,	Operating Leases
2020 (Excluding the nine months ended September 30, 2020)	$	7,012
2021	17,340
2022	11,465
2023	8,229
2024	7,062
Thereafter	14,161
Total future minimum lease payments	65,269
Less imputed interest	(11,325)
Total	$	53,944

As of September 30, 2020, we have additional operating leases, that have not commenced during the nine months ended September 30, 2020, which were not material.

22

Note 9 – Income taxes

We account for income taxes under the asset and liability method. Deferred tax assets and liabilities are recognized for the expected tax consequences of temporary differences between the tax bases of assets and liabilities and their reported amounts. Valuation allowances are established when necessary to reduce deferred tax assets to amounts which are more likely than not to be realized. We had a valuation allowance of $102 million and $86 million at September 30, 2020 and December 31, 2019, respectively. A majority of the valuation allowance is related to the deferred tax assets of National Instruments Hungary Kft. ("NI Hungary").

We account for uncertainty in income taxes recognized in our financial statements using prescribed recognition thresholds and measurement attributes for financial statement disclosure of tax positions taken or expected to be taken on our tax returns. We had $6.9 million and $6.7 million of unrecognized tax benefits at September 30, 2020 and December 31, 2019, respectively, all of which would affect our effective income tax rate if recognized. We recorded no change in unrecognized tax benefits for the three months ended September 30, 2020, as a result of the tax positions taken during prior periods. As of September 30, 2020, it is reasonably possible that we will recognize tax benefits in the amount of $2.9 million in the next twelve months due to the closing of open tax years. The nature of the uncertainty is related to deductions taken on returns that have not been examined by the applicable tax authority.  Our continuing policy is to recognize interest and penalties related to income tax matters in income tax expense. As of September 30, 2020, we had approximately $0.8 million accrued for interest related to uncertain tax positions. The tax years 2013 through 2020 remain open to examination by the major taxing jurisdictions to which we are subject.  

Our provision for income taxes reflected an effective tax rate of (11)% and 23% for the three months ended September 30, 2020 and 2019, respectively, and 24% and 18% for the nine months ended September 30, 2020 and 2019, respectively. For the three months ended September 30, 2020, our effective tax rate was higher than the U.S. federal statutory rate of 21% as a result of state income taxes net of federal benefit, nondeductible officer compensation, the net effect of non-permanent investment in foreign jurisdictions, nondeductible acquisition costs and the change in intercompany prepaid tax asset, offset by the research and development tax credit, an enhanced deduction for certain research and development expenses, and the deduction for foreign-derived deduction eligible income. For the nine months ended September 30, 2020, our effective tax rate was higher than the U.S. federal statutory rate of 21% as a result of state income taxes net of federal benefit, nondeductible officer compensation, the net effect of non-permanent investment in foreign jurisdictions, nondeductible acquisition costs, the change in intercompany prepaid tax asset and the gain on the sale of our AWR business, offset by the research and development tax credit, an enhanced deduction for certain research and development expenses, and the deduction for foreign-derived deduction eligible income. For the three months ended September 30, 2019, our effective tax rate was higher than the U.S. federal statutory rate of 21% as a result of state income taxes, the U.S. tax on global intangible low-taxed income, nondeductible officer compensation, and an adjustment to the one-time transition tax on deferred foreign income, offset by the research and development tax credit, an enhanced deduction for certain research and development expenses, a decrease in unrecognized tax benefits resulting from the closing of open tax years, and the deduction for foreign-derived deduction eligible income. For the nine months ended September 30, 2019, our effective tax rate was lower than the U.S. federal statutory rate of 21% as a result of an enhanced deduction for certain research and development expenses, a decrease in unrecognized tax benefits resulting from the closing of open tax years, the research and development tax credit, excess tax benefits from share-based compensation, a tax benefit from disqualifying dispositions of equity awards that do not ordinarily result in a tax benefit, and the deduction for foreign-derived deduction eligible income, offset by state income taxes, the U.S. tax on global intangible low-taxed income, nondeductible officer compensation, and an adjustment to the one-time transition tax on deferred foreign income.

Our earnings in Hungary are subject to a statutory tax rate of 9%. In addition, our research and development activities in Hungary benefit from a tax law in Hungary that provides for an enhanced deduction for qualified research and development expenses. The tax position of our Hungarian operations resulted in income tax expense of $0.1 million and $0.3 million for the three and nine months ended September 30, 2020, respectively, and income tax benefits of $1.6 million and $4.2 million for the three and nine months ended September 30, 2019, respectively.

Earnings from our operations in Malaysia are free of tax under a tax holiday effective January 1, 2013. This tax holiday expires in 2037. If we fail to satisfy the conditions of the tax holiday, this tax benefit may be terminated early. The income tax benefits of the tax holiday for the three and nine months ended September 30, 2020 were approximately $0.2 million and $0.4 million, respectively. The income tax benefits of the tax holiday for the three and nine months ended September 30, 2019 were approximately $1.8 million and $3.1 million, respectively.  The impact of the tax holiday on a per share basis for the three and nine months ended September 30, 2020 was a benefit of $0.01 per share. The impact of the tax holiday on a per share basis for the three and nine months ended September 30, 2019 was a benefit of $0.01 and $0.02 per share, respectively.

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No other taxing jurisdictions had a significant impact on our effective tax rate. We have not entered into any advanced pricing or other agreements with the IRS with regard to any foreign jurisdictions.

Note 10 – Comprehensive income    

Our comprehensive income is comprised of net income, foreign currency translation, unrealized gains and losses on forward contracts and securities classified as available-for-sale. The accumulated OCI, net of tax, for the nine months ended September 30, 2020 and 2019, consisted of the following:  

	September 30, 2020
	(Unaudited)
(In thousands)	Currency translation adjustment		Investments		Derivative instruments		Accumulated other comprehensive income/(loss)
Balance as of December 31, 2019	$	(25,831)	$	(85)	4,846		$	(21,070)
Current-period other comprehensive income (loss)	6,507		(317)		(7,699)		(1,509)
Reclassified from accumulated OCI into income	—		—		(2,429)		(2,429)
Income tax (benefit) expense	—		(45)		(2,223)		(2,268)
Balance as of September 30, 2020	$	(19,324)	$	(357)	$	(3,059)	$	(22,740)

	September 30, 2019
	(Unaudited)
(In thousands)	Currency translation adjustment		Investments		Derivative instruments		Accumulated other comprehensive income/(loss)
Balance as of December 31, 2018	$	(22,485)	$	(1,308)	6,862		$	(16,931)
Current-period other comprehensive (loss) income	(9,303)		1,494		8,671		862
Reclassified from accumulated OCI into income	—		—		(7,312)		(7,312)
Income tax (benefit) expense	—		(11)		366		355
Balance as of September 30, 2019	$	(31,788)	$	197	$	7,855	$	(23,736)

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Note 11 – Authorized shares of common and preferred stock and stock-based compensation plans

Authorized shares of common and preferred stock

Following approval by the Company’s Board of Directors and stockholders, on May 14, 2013, the Company’s certificate of incorporation was amended to increase the authorized shares of common stock by 180,000,000 shares to a total of 360,000,000 shares. As a result of this amendment, the total number of shares which the Company is authorized to issue is 365,000,000 shares, consisting of (i) 5,000,000 shares of preferred stock, par value $0.01 per share, and (ii) 360,000,000 shares of common stock, par value $0.01 per share.

Restricted stock unit plans  

Our stockholders approved our 2005 Incentive Plan (the “2005 Plan”) in May 2005. At the time of approval, 4,050,000 shares of our common stock were reserved for issuance under the 2005 Plan, as well as the number of shares which had been reserved but not issued under our 1994 Incentive Plan (the “1994 Plan”) which terminated in May 2005, and any shares that returned to the 1994 Plan as a result of termination of options or repurchase of shares issued under such plan. The 2005 Plan provided for the granting of incentive awards in the form of restricted stock and RSUs to directors, executive officers and employees of the Company and its subsidiaries. Awards vest over a three, five or ten-year period, beginning on the date of grant. Vesting of ten-year awards may accelerate based on our previous year’s earnings and growth but ten-year awards cannot accelerate to vest over a period of less than five years. The 2005 Plan terminated on May 11, 2010, except with respect to outstanding awards previously granted thereunder. There were 3,362,304 shares of common stock that were reserved but not issued under the 2005 Plan as of May 11, 2010.  

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Our stockholders approved our 2010 Incentive Plan (the “2010 Plan”) on May 11, 2010. At the time of approval, 3,000,000 shares of our common stock were reserved for issuance under the 2010 Plan, as well as the 3,362,304 shares of common stock that were reserved but not issued under the 1994 Plan and the 2005 Plan as of May 11, 2010, and any shares that are returned to the 1994 Plan and the 2005 Plan as a result of the forfeiture or termination of options or RSUs or repurchase of shares issued under those plans. The 2010 Plan provided for the granting of incentive awards in the form of restricted stock and RSUs to employees, directors and consultants of the Company and employees and consultants of any parent or subsidiary of the Company. Awards vest over a three, five or ten-year period, beginning on the date of grant. Vesting of ten-year awards may accelerate based on our previous year’s earnings and growth but ten-year awards cannot accelerate to vest over a period of less than five years. The 2010 Plan terminated on May 12, 2015, except with respect to the outstanding awards previously granted thereunder. There were 2,518,416 shares of common stock that were reserved but not issued under the 2010 Plan as of May 12, 2015.

Our stockholders approved our 2015 Equity Incentive Plan (the “2015 Plan”) on May 12, 2015. At the time of approval, 3,000,000 shares of our common stock were reserved for issuance under the 2015 Plan, as well as the 2,518,416 shares of common stock that were reserved but not issued under the 2010 Plan as of May 12, 2015, and any shares that were returned to the 1994, 2005, and the 2010 Plans as a result of the forfeiture or termination of options or RSUs or repurchase of shares issued under those plans. The 2015 Plan provides for the granting of incentive awards in the form of restricted stock and RSUs to employees, directors and consultants of the Company and employees and consultants of any parent or subsidiary of the Company and such awards may be subject to performance-based vesting conditions. Awards generally vest over a three, four, five or ten-year period, beginning on the date of grant. Vesting of ten-year awards may accelerate based on our previous year’s earnings and growth but ten-year awards cannot accelerate to vest over a period of less than five years. The 2015 plan terminated on May 5, 2020, except with respect to the outstanding awards previously granted thereunder. There were 567,142 shares of common stock that were reserved but not issued under the 2015 Plan as of May 5, 2020.   

Our stockholders approved our 2020 Equity Incentive Plan (the “2020 Plan”) on May 5, 2020. At the time of approval, 4,500,000 shares of our common stock were reserved for issuance under the 2020 Plan, as well as the 567,142 shares of common stock that were reserved but not issued under the 2015 Plan as of May 5, 2020, and any shares that were returned to the 2005, 2010, and 2015 Plans as a result of the forfeiture or termination of RSUs or repurchase of shares issued under those plans. The 2020 Plan provides for the granting of incentive awards in the form of restricted stock and RSUs to employees, directors and consultants of the Company and employees and consultants of any parent or subsidiary of the Company. Awards generally vest over a one, three or four-year period, beginning on the date of the grant and awards may be subject to performance-based vesting conditions. There were 5,141,465 shares available for grant under the 2020 Plan at September 30, 2020.

Performance-based stock units

During the nine months ended September 30, 2020 and 2019, we granted 144,647 and 92,809 PRSUs, respectively, of performance-based restricted stock units (“PRSUs”) to executive officers pursuant to the 2015 Plan. The PRSUs may be earned based on our total shareholder return ("TSR") compared to the TSR of the Russell 2000 Index (the “Index”) over a three-year performance period. For the PRSUs granted during the nine months ended September 30, 2020, the three-year performance period commenced on January 1, 2020, and will end on December 31, 2022, and for the PRSUs granted during the nine months ended September 30, 2019, the three year performance commenced on January 1, 2019 and will end on December 31, 2021, using the average daily closing price over a 30-day lookback in each case. The number of awards earned could range from zero to two times the target number of shares granted.

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The fair values of PRSUs are estimated using a Monte Carlo simulation. The determination of fair value of the PRSUs are based on our stock price and a number of assumptions including the expected volatility, expected dividend yield and the risk-free interest rate. The expected volatility at the date of grant was based on the historical volatilities of our stock and the companies included in the Index over the performance period. The Monte Carlo model is based on random projections of stock-price paths and must be repeated numerous times to achieve a probabilistic assessment. The key assumptions used in valuing these market-based awards are as follows:

	Nine Months Ended
	(unaudited)
	September 30, 2020	September 30, 2019
Number of simulations	100,000	100,000
Expected volatility	27.41%	26.08%
Expected life in years	2.92 years	2.94 years
Risk-free interest rate	1.38%	2.52%
Dividend yield	2.32%	1.96%

The weighted average grant date fair value of the market-based awards, as determined by the Monte Carlo valuation model, was $61.00 per share and $57.46 per share in 2020 and 2019, respectively.

Employee stock purchase plan  

Our employee stock purchase plan (“ESPP”) permits substantially all domestic employees and employees of designated subsidiaries to acquire our common stock at a purchase price of 85% of the lower of the market price at the beginning or the end of the purchase period. The plan has quarterly purchase periods generally beginning on February 1, May 1, August 1 and November 1 of each year. Employees may designate up to 15% of their compensation for the purchase of common stock under the ESPP. On May 14, 2019, our stockholders approved an additional 3,000,000 shares for issuance under our employee stock purchase plan. At September 30, 2020, we had 3,321,597 shares of common stock reserved for future issuance under the ESPP. We issued 764,173 shares under this plan in the nine months ended September 30, 2020 and the weighted average purchase price was $32.67 per share. During the nine months ended September 30, 2020, we did not make any changes in accounting principles or methods of estimates with respect to our ESPP.  

Authorized Preferred Stock and Preferred Stock Purchase Rights Plan  

We have 5,000,000 authorized shares of preferred stock. On January 21, 2004, our Board of Directors designated 750,000 of these shares as Series A Participating Preferred Stock in conjunction with the adoption of a Preferred Stock Rights Agreement which expired on May 10, 2014. There were no shares of preferred stock issued and outstanding at September 30, 2020.

Stock repurchases and retirements 

From time to time, our Board of Directors has authorized various programs for our repurchase of shares of our common stock depending on market conditions and other factors. Under the current program, during the three months ended September 30, 2020, we repurchased 446,502 shares of our common stock at a weighted average price per share of $34.86 and during the nine months ended September 30, 2020, we repurchased 1,114,701 shares of our common stock at a weighted average price per share of $35.21. Under the current program, during the three months ended September 30, 2019, we repurchased 1,056,078 shares of our common stock at a weighted average price per share of $42.42 and during the nine months ended September 30, 2019, we repurchased 3,205,676 shares of our common stock at a weighted average price per share of $42.79. At September 30, 2020, there were 1,885,299 shares remaining available for repurchase under the stock repurchase program. The stock repurchase program does not have an expiration date. 

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Note 12 – Segment and geographic information 

We operate as one operating segment. Operating segments are defined as components of an enterprise for which separate financial information is evaluated regularly by the chief operating decision maker, who is our chief executive officer, in deciding how to allocate resources and in assessing performance. Our chief operating decision maker evaluates our financial information and resources and assesses the performance of these resources on a consolidated basis. Since we operate in one operating segment, all required financial segment information can be found in the condensed consolidated financial statements and the notes thereto.

We sell our products in three geographic regions which consist of Americas, EMEA and APAC. Our sales to these regions share similar economic characteristics, similar product mix, similar customers, and similar distribution methods. Revenue from the sale of our products, which are similar in nature, and software maintenance is reflected as total net sales in our Consolidated Statements of Income. (See Note 2 - Revenue of Notes to Consolidated Financial Statements for total net sales by the major geographic areas in which we operate).    

Based on the billing location of the customer, total sales outside the U.S. for the three months ended September 30, 2020 and 2019 were $187 million and $208 million, respectively, and $564 million and $617 million for the nine months ended September 30, 2020 and 2019, respectively. Total property and equipment, net, outside the U.S. was $135 million as of September 30, 2020 and $130 million as of December 31, 2019. Revenues and long-lived assets attributable to each individual foreign country outside of the U.S. were not material.

Note 13 – Debt

On June 12, 2020, we entered into an Amended and Restated Credit Agreement (the “Credit Agreement”) with the lenders from time to time party thereto (the “Lenders"), and Wells Fargo Bank, National Association, as the administrative agent, swingline lender and issuing lender (“Administrative Agent”), with Wells Fargo Securities, LLC and BofA Securities, Inc., as joint lead arrangers and joint bookrunners. The Credit Agreement amends and restates in its entirety and refinances our previous loan agreement, dated as of May 9, 2013, with Wells Fargo Bank, National Association, which was amended on April 16, 2020 as well as on October 29, 2015 and April 27, 2018 (the “Loan Agreement”). The Credit Agreement was subsequently amended on October 30, 2020 as further described in Note 18 – Subsequent Events of Notes to Consolidated Financial Statements.

The Credit Agreement provides for an initial $145 million credit facility consisting of a secured revolving loan facility in an aggregate principal amount of up to $75 million, including a $10 million sub-facility for the issuance of letters of credit, and a secured term loan facility in an aggregate principal amount of up to $70 million, which term loan facility is available until the date that is 60 days following the closing date of the Credit Agreement. Subject to the terms and conditions of the Credit Agreement, including obtaining commitments from existing lenders or new lenders, we may request additional term loan or revolving commitments of up to $105 million in the aggregate. Pursuant to the Credit Agreement, the revolving line of credit terminates, and all revolving loans and term loans are due and payable, on June 12, 2023. The revolving loans and term loans accrue interest, at our option, at a base rate equal to the highest of (a) the prime rate, (b) the federal funds rate plus 0.50%, and (c) a LIBOR loan interest rate of LIBOR for an interest period of one month plus 1.00%, plus a margin of 1.25% to 1.75%, or LIBOR plus a margin of 2.25% to 2.75%, in each case with the margin being determined based upon our consolidated total leverage ratio. The term loan amortizes in quarterly payments equal to 1.25% of the original principal amount of the term loan, with the remaining outstanding balance being due and payable at maturity. The Credit Agreement contains financial covenants requiring us to maintain a maximum total leverage ratio of less than or equal to 2.75 to 1.00 and a minimum fixed charge coverage ratio of greater than or equal to 1.25 to 1.00, in each case determined in accordance with the Credit Agreement.

The Credit Agreement provides for a commitment fee of 0.375% to 0.500% per annum, determined based upon our consolidated total leverage ratio, on the average daily unused amount of the revolving committed amount, payable quarterly in arrears. In addition, we will pay commitment fees based on the applicable margin set forth in the Credit Agreement in an amount equal to 0.375% to 0.500% per annum, determined based upon our consolidated total leverage ratio, of the initial term loan as a commitment fee until such time as the initial term loan is drawn or the initial term loan commitments expire or are terminated.

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The Credit Agreement requires that certain of the Company’s wholly-owned domestic subsidiaries (the “Subsidiary Guarantors”) will enter into a guaranty agreement (“Guaranty”) in favor of the Administrative Agent guarantying our obligations under the Credit Agreement, among other things. In connection with the Credit Agreement and Guaranty, we, along with the Subsidiary Guarantors and the Administrative Agent have entered into a Collateral Agreement (“Collateral Agreement”) pursuant to which we and each Subsidiary Guarantor have granted a lien on substantially all of our assets to secure their obligations under the Credit Agreement and the Guaranty.

The Credit Agreement contains customary affirmative and negative covenants. The affirmative covenants include, among other things, delivery of financial statements, compliance certificates and notices, payment of taxes and other obligations, maintenance of existence, maintenance of properties and insurance, maintenance of books and records, and compliance with applicable laws and regulations. The negative covenants include, among other things, limitations on indebtedness, liens, mergers, consolidations, acquisitions and sales of assets, investments, changes in the nature of the business, affiliate transactions and certain restricted payments. The Credit Agreement contains customary events of default including, among other things, payment defaults, breaches of covenants or representations and warranties, cross-defaults with certain other indebtedness, bankruptcy and insolvency events, judgment defaults and change in control events, subject to grace periods in certain instances. Upon an event of default, the Administrative Agent and the Lenders may declare all or a portion of our outstanding obligations payable by us to be immediately due and payable and exercise other rights and remedies provided for under the Credit Agreement. Under certain circumstances, a default interest rate will apply on all obligations during the existence of an event of default under the Credit Agreement at a per annum rate of interest equal to 2.00% above the otherwise applicable interest rate.

Proceeds of loans made under the revolving loan facility portion of the Credit Agreement may be used for working capital and other general corporate purposes. We may prepay the loans under the Credit Agreement in whole or in part at any time without premium or penalty.

The following table presents the amounts outstanding related to our borrowing arrangements discussed above as of September 30, 2020 and December 31, 2019, respectively (unaudited, in thousands):

	September 30,		December 31,
	2020		2019
Secured
2020 term loan (effective interest rate of 3.0%)	$	69,125	$	—
2020 revolving loan facility (effective interest rate of 3.0%)	20,000		—
Total Debt	89,125		—
Less: Unamortized debt issuance costs	(1,336)		—
Less: Current Portion of Total Debt	(3,500)		—
Total Debt, non-current	$	84,289	$	—

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Note 14 – Commitments and contingencies  

We offer a one-year limited warranty on most hardware products which is included in the terms of sale of such products. We also offer optional extended warranties on our hardware products for which the related revenue is recognized ratably over the warranty period. Provision is made for estimated future warranty costs at the time of the sale for the estimated costs that may be incurred under the standard warranty. Our estimate is based on historical experience and product sales during the period.  The warranty reserve for the nine months ended September 30, 2020 and 2019 was as follows:

	Nine Months Ended September 30,
(In thousands)	(Unaudited)
	2020		2019
Balance at the beginning of the period	$	2,561	$	3,173
Accruals for warranties issued during the period	1,824		1,665
Accruals related to pre-existing warranties	405		(441)
Settlements made (in cash or in kind) during the period	(2,088)		(1,899)
Balance at the end of the period	$	2,702	$	2,498

As of September 30, 2020, we had non-cancelable purchase commitments with various suppliers of customized inventory and inventory components totaling approximately $5.2 million over the next twelve months.

Note 15 – Restructuring

Since the first quarter of 2017, we have been taking steps to optimize our processes, reduce job duplication, evaluate where we should shift and centralize activities, improve efficiencies, and rebalance our resources on what we believe to be higher return activities. These steps involve reductions in our overall employee headcount. The timing and scope of our headcount reductions will vary.

A summary of the charges in our consolidated statement of operations resulting from our restructuring activities is shown below:

	Three Months Ended September 30,			Nine Months Ended September 30,
(In thousands)	(Unaudited)			(Unaudited)
	2020		2019	2020		2019
Cost of sales	$	(13)	—	$	7	—
Research and development	38		34	4,716		690
Sales and marketing	512		2,993	8,055		7,958
General and administrative	121		990	683		2,512
Total restructuring and other related costs	$	658	4,017	$	13,461	11,160

A summary of balance sheet activity related to our restructuring activity is shown below:

	Restructuring Liability
	(in thousands)
Balance as of December 31, 2019	$	9,527
Income statement expense	13,461
Cash payments	(19,651)
Balance as of September 30, 2020	$	3,337

The liability of $3.3 million at September 30, 2020  relating  to  our restructuring activity  is  recorded  in the “accrued compensation” line item of our consolidated balance sheet.

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Note 16 – Litigation  

We are not currently a party to any material litigation. However, in the ordinary course of our business, we have in the past, are currently and will likely become involved in various legal proceedings, claims, and regulatory, tax or government inquiries and investigations, and could incur uninsured liability in any one or more of them. We also periodically receive notifications from various third parties related to alleged infringement of patents or intellectual property rights, commercial disputes or other matters. No assurances can be given with respect to the extent or outcome of any investigation, litigation or dispute. 

Note 17 – Acquisitions

Acquisition of OptimalPlus

On July 2, 2020, we completed the acquisition of Optimal Plus Ltd. (“OptimalPlus”), a global leader in data analytics software for the semiconductor, automotive and electronics industries that is based in Israel. As a result of acquiring 100% of the outstanding share capital of OptimalPlus, OptimalPlus became our wholly-owned subsidiary. This transaction is being accounted for as a business combination using the acquisition method of accounting. All of the acquired assets and liabilities of OptimalPlus have been recorded at their respective fair values as of the acquisition date. Transaction costs have been expensed as incurred.

The acquisition was funded primarily by cash on hand in addition to $70 million drawn under our term loan facility on June 30, 2020. See Note 13 – Debt of Notes to Consolidated Financial Statements for further information on our outstanding borrowings. During the nine months ended September 30, 2020, we expensed $7 million of transaction costs in connection with the acquisition of OptimalPlus, which are included in selling, general and administrative expenses.

At the acquisition date, total consideration transferred was approximately $353 million, inclusive of $18 million in cash acquired. Additionally, unvested in-the-money share options of certain OptimalPlus employees were exchanged into the right to receive deferred cash consideration in accordance with the terms of the share purchase agreement. Approximately $12 million of deferred cash consideration was allocated to post-combination expense and is not included in the total consideration transferred. The deferred cash consideration is subject to the original vesting schedule of the corresponding unvested options that were replaced and the amounts will be recognized as compensation expense over the remaining service period.

The excess of the purchase price over the net assets acquired was recorded as goodwill. Goodwill generated from the acquisition is primarily attributable to expected growth in the scope of and market opportunities for our software-defined automated test and measurement platform. As a result of the structure of the transaction, the balance of goodwill is deductible in the U.S. over 15 years for income tax purposes.

Fair value of net assets acquired and liabilities assumed

The information below represents the preliminary purchase price allocation of OptimalPlus (in thousands):

	July 2, 2020
Consideration Transferred	352,642
Cash	17,661
Intangible assets	127,600
Goodwill	227,280
Contract assets	15,454
Deferred revenue	(7,341)
Accounts receivable	4,927
Other assets and liabilities	(2,545)
Deferred tax liabilities	(30,394)
Net assets acquired	352,642

Our preliminary estimates of the fair value of the assets acquired and the liabilities assumed are based on the information currently available, and we are continuing to evaluate the underlying inputs and assumptions used in our valuations.

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Accordingly, these preliminary estimates are subject to change during the measurement period, which is up to one year from the date of acquisition. A decrease in the fair value of assets acquired or an increase in the fair value of liabilities assumed in the acquisition from those valuation would result in a corresponding increase in the amount of goodwill acquired.

Acquired intangible assets will be amortized over their estimated useful lives on a straight-line basis. The following table summarizes the preliminary purchase price allocation, and the preliminary average remaining useful lives, for identifiable intangible assets acquired (dollars in thousands):

	Estimated Fair Value	Estimated Useful Lives (in years)
Customer relationships	30,100	5
Developed technology	81,400	6
In-process research and development (IPR&D)	10,200	6
Other intangibles	5,900	3-5
Total	127,600

Developed technology and IPR&D relate to software platforms for data analytics in the semiconductor, automotive, and electronic industries that combine machine-learning with a global data infrastructure to provide real-time product analytics and extract insights from data across the entire supply chain. We valued the developed technology and IPR&D using the multi-period excess earnings method under the income approach. This method reflects the present value of the projected cash flows that are expected to be generated by the technology less charges representing the contribution of other assets to those cash flows. The economic useful life was determined based on the technology cycle related to each technology, as well as the cash flows over the forecast period.

Customer relationships represent the fair value of future projected revenue that will be derived from sales of products to existing customers. Customer relationships were valued using the with-and-without-method under the income approach. In the with-and-without method, the fair value was measured by the difference between the present values of the cash flows with and without the existing customers in place over the period of time necessary to reacquire the customers. The economic useful life was determined by evaluating many factors, including the useful life of other intangible assets, the length of time remaining on the acquired contracts and the historical customer turnover rates.

Unaudited Pro Forma Information

The results of OptimalPlus have been included in our consolidated statements of income for the period subsequent to the acquisition date. The following unaudited pro forma financial information presents combined results of operations for the periods presented, as if the OptimalPlus acquisition had occurred on January 1, 2019, with adjustments to give effect to pro forma events that are directly attributable to the acquisition. These pro forma adjustments include additional amortization expense for the identifiable intangible assets, a reduction in revenue related to deferred revenue purchase accounting adjustments, an increase in interest expense related to the term loan entered into in connection with the acquisition, and adjustments to compensation expense for the replacement of unvested stock options discussed above, net of tax effects. For the pro forma presentation, given the assumed acquisition date of January 1, 2019, transaction and integration costs that were incurred at or subsequent to the actual acquisition date have been included in the calculation of pro forma net income for the nine months ended September 30, 2019, whereas transaction and integration costs that were incurred prior to the acquisition date have been excluded from the calculation of pro forma net income.

The unaudited pro forma results are presented for informational purposes only and are not necessarily indicative of what actual results of operations would have been if the acquisition had occurred as the beginning of the period presented, nor are they indicative of future results of operations. The unaudited pro forma results do not include the impact of synergies, nor any potential impacts on current or future market conditions which could alter the unaudited pro forma results.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
(in thousands)	(unaudited)				(unaudited)
Net sales	$	309,142	$	348,401	$	929,381	$	1,009,102
Net income	$	4,907	$	42,522	$	123,766	$	65,796

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Note 18 – Subsequent events  

Dividends

On October 28, 2020, our Board of Directors declared a quarterly cash dividend of $0.26 per common share, payable on December 7, 2020, to stockholders of record on November 16, 2020.

Credit Agreement

On October 30, 2020, we amended our existing Credit Agreement to (i) increase the revolving line of credit from $75 million to $115 million, (ii) refinance the existing $70 million term loan with a new $100 million term loan, (iii) increase our ability to borrow additional funds by amending the incremental facilities limit to $100 million plus an unlimited amount, so long as after giving effect to the incurrence of such incremental increases, on a pro forma basis, the consolidated total leverage ratio does not exceed 2.25 to 1.00, (iv) reduce the applicable margin for LIBOR loans to a range of 1.50% to 2.00% and the applicable margin for base rate loans to a range of 0.50% to 1.00%, in each case based on our consolidated total leverage ratio, and remove the LIBOR floor, (v) amend the revolving credit commitment fee of 0.375% to 0.500% per annum to 0.250% to 0.375% per annum, determined based upon our consolidated total leverage ratio, on the average daily unused amount of the revolving committed amount, payable quarterly in arrears, (vi) extend the maturity date of both the revolving line of credit and term loan from June 12, 2023 to June 12, 2024 (the “Maturity Date”), and (vi) provide that the term loan shall be paid after the effective date for the Amendment in quarterly installments equal to 1.25% of the original principal amount and shall be paid in full, with accrued interest, on the Maturity Date.

Restructuring

On October 29, 2020, we announced a workforce reduction plan (the “Plan”) intended to accelerate our growth strategy and further optimize our operations and cost structure. The Plan is expected to result in reductions to our worldwide headcount of approximately 9% over the next 9-12 months. In connection with the Plan, we currently estimate that we will incur pre-tax charges of approximately $22 million to $28 million, consisting primarily of cash termination benefits and other employee-related costs that will be paid over the next 9-12 months. We expect that the majority of these charges will be recognized during the fourth quarter of 2020.

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

National Instruments Corporation and its subsidiaries (referred to as the “Company,” “we,” “us,” “our” or “National Instruments”) has made forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), that are subject to risks and uncertainties. Any statements contained herein regarding our future financial performance, operations or other matters (including, without limitation, statements to the effect that we “believe,” “expect,” “plan,” “intend to,” “may,” “will,” “project,” “anticipate,” “continue,” “strive to,” “seek to,” “are encouraged by,” “estimate”, "focus on", "remaining committed to"; statements of “goals” or “visions”; or other variations thereof or comparable terminology or the negative thereof) should be considered forward-looking statements. All forward-looking statements are based on current expectations and projections of future events. We claim the protection of the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995 for all forward-looking statements.

Although we believe that the expectations reflected in the forward-looking statements are reasonable, forward-looking statements are not guarantees of performance and actual results could differ materially from those projected in the forward-looking statements as a result of a number of important factors, including those set forth under the heading “Risk Factors” below and in “Part I, Item 1A. Risk Factors” in our Annual Report on Form 10-K for the fiscal year ended December 31, 2019 could affect our future results and could cause those results or other outcomes to differ materially from those expressed or implied in the forward-looking statements. Actual results could differ materially from those stated or implied by our forward-looking statements, due to risks and uncertainties associated with our business or under different assumptions or conditions. You should not place undue reliance on any of these forward-looking statements. Any forward-looking statement speaks only as of the date on which it is made, and we disclaim any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

Overview 

For more than 40 years, we have enabled engineers and scientists around the world to accelerate productivity, innovation and discovery. Our software-centric platform provides an advanced approach through integration of software and modular hardware to create automated test and automated measurement systems. We believe our long-term track record of innovation and our differentiated platform help support the success of our customers, employees, suppliers and stockholders. We have been profitable in every year since 1990. We sell to a large number of customers in a wide variety of industries. 

The key strategies that we focus on in running our business are the following:  

Expand our available market opportunity

We strive to increase our available market by identifying new opportunities in existing customers, attracting and serving new customers, and expanding our business to market adjacencies. Our large network of existing customers provides a broad base from which to expand.

Maintaining a high level of customer satisfaction  

To maintain a high level of customer satisfaction we strive to offer innovative, modular and integrated products through a global sales and support network. We strive to maintain a high degree of backward compatibility across different platforms to preserve the customer’s investment in our products. In this time of intense global competition, we believe it is crucial that we continue to offer products with high quality and reliability, and that our products provide cost-effective solutions for our customers.   

Leveraging external and internal technology  

Our product strategy is to provide superior products by leveraging generally available technology, supporting open architectures on multiple platforms and by leveraging our core technologies across multiple products.

We sell into test and measurement and industrial/embedded applications in a broad range of industries and are subject to the economic and industry forces that drive those markets. It has been our experience that the performance of these industries and our performance are impacted by general trends in industrial production for the global economy and by the specific performance of certain customers in these industries that are intensive consumers of measurement technologies. Examples of these types of customers include semiconductor, transportation, and aerospace, defense and government ("ADG").

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Leveraging a worldwide sales, distribution and manufacturing network  

We distribute and sell our software and hardware products primarily through a direct sales organization. We also use independent distributors, original equipment manufacturers, value added resellers, system integrators, and consultants to market and sell our products. We have sales offices in the U.S. and sales offices and distributors in key international markets. Sales outside of the Americas accounted for approximately 59% and 58% of our net sales during the three months ended September 30, 2020 and 2019, and approximately 59% and 60% of our net sales during the nine months ended September 30, 2020 and 2019, respectively. The vast majority of our foreign sales are denominated in the customers’ local currency, which exposes us to the effects of changes in foreign currency exchange rates. We expect that a significant portion of our total revenues will continue to be derived from international sales. (See Note 2 - Revenue and Note 12 - Segment and geographic information of Notes to Consolidated Financial Statements for details concerning the geographic breakdown of our net sales and long-lived assets, respectively).

We manufacture substantially all of our product volume at our facilities in Debrecen, Hungary and Penang, Malaysia. Our product manufacturing operations can be divided into four areas: electronic circuit card and module assembly; chassis and cable assembly; technical manuals and product support documentation; and software duplication. Most of our electronic circuit card assemblies, modules and chassis are manufactured in house, although contractors are used from time to time. The majority of our electronic cable assemblies are produced by contractors; however, we do manufacture some on an exception basis. Our software duplication, technical manuals and product support documentation are primarily produced by contractors.

Delivering high quality, reliable products

We believe that our long-term growth and success depend on delivering high quality software and hardware products on a timely basis. Accordingly, we focus significant efforts on research and development. We focus our research and development efforts on enhancing existing products and developing new products that incorporate appropriate features and functionality to be competitive with respect to technology, price and performance. Our success also depends on our ability to obtain and maintain patents and other proprietary rights related to technologies used in our products. We have engaged in litigation and where necessary, will likely engage in future litigation to protect our intellectual property rights. In monitoring and policing our intellectual property rights, we have been and may be required to spend significant resources.

Our operating results fluctuate from period to period due to changes in global economic conditions and a number of other factors. As a result, we believe our historical results of operations should not be relied upon as indications of future performance. There can be no assurance that our net sales will grow, or not decline, or that we will remain profitable in future periods.  

Recent Developments - COVID-19  

As further discussed in the "Risk Factors" section of this Form 10-Q, our operations and the operations of our customers and suppliers have been adversely impacted by the significantly increased economic uncertainties resulting from COVID-19.

The COVID-19 outbreak has resulted in the implementation of significant governmental measures designed to control the spread of the virus, including, among others, restrictions on travel and the imposition of stay-at-home or work-remote conditions in many of the locations where we have offices. To support the health and well-being of our employees, customers, and communities, those employees who do not have critical in-person functions have had the option to work remotely since the first quarter of 2020 and many of our employees continue to do so as of the date of this filing. In addition, many of our customers and suppliers are working remotely, which may delay the timing of some orders and deliveries expected in the fourth quarter of 2020.

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On March 27, 2020, the Coronavirus Aid, Relief, and Economic Security (“CARES”) Act was signed into law. The CARES Act provides a substantial stimulus and assistance package intended to address the impact of the COVID-19 pandemic, including tax relief and government loans, grants and investments. The CARES Act did not have a material impact on our results of operations for the three and nine months ended September 30, 2020. We are currently assessing the future implications of these provisions within the CARES Act on our consolidated financial statements, but do not expect the impact to be material to our results of operations.

  The scope and nature of the impact of the COVID-19 pandemic continues to evolve each day. While we do not know and cannot quantify the specific impact on our results of operations, we will likely continue to be negatively affected if we encounter manufacturing or supply chain problems, further reductions in demand due to disruptions in the operations of our customers or their end customers, disruptions in local and global economies, further volatility in the global financial markets, overall reductions in demand, restrictions on the export or shipment of our products or other related ramifications of the pandemic.

Current Business Outlook

We currently expect that revenue for the fourth quarter of 2020 will be lower than initially anticipated at the beginning of 2020 as a result of continuing macroeconomic weakness and challenges related to the COVID-19 pandemic. For example, the pandemic has adversely impacted our customers’ ability to manufacture their products, and has further adversely impacted demand for our customers' products, either of which could further reduce our customers' demand for our products or services. We also expect recent trade regulations and geopolitical uncertainly to negatively impact demand for our products in the fourth quarter of 2020. While we remain cautious due to continuing uncertainty, we are also optimistic about our position to capture long-term growth opportunities as we continue to enhance our offerings in key focus areas such as semiconductor design-to-test and vehicle electrification.

Many of the industries we serve have historically been cyclical and have experienced periodic downturns. In assessing our business, we consider the trends in various indices, such as the Global Purchasing Managers’ Index (“PMI”), global industrial production as well as industry reports on the specific vertical industries that we target. Historically, our business cycles have generally followed the expansion and contraction cycles in the global industrial economy as measured by the Global PMI. Although the Global PMI indicated sequential expansion in the industrial economy during the third quarter of 2020, global GDP remains in a year over year decline. We are unable to predict whether the industrial economy, as measured by the PMI, will strengthen or contract during the remainder of 2020. However, we expect headwinds related to the COVID-19 outbreak to continue over the next few quarters.

Prior to COVID-19, we had taken steps to improve efficiencies and rebalance our resources on activities that we believe will generate a higher return. These steps involved, among other things, reduction in our overall employee headcount and optimization of our organizational structure. We believe these pre-COVID-19 efforts have enhanced our financial and structural position to navigate the current challenging times. Additionally, we are currently focusing on proactively managing expenses intended to help us maintain strength in our balance sheet and improve our financial position. During the fourth quarter of 2020, we began implementing additional measures expected to result in reductions to our headcount of approximately 9% over the next 9-12 months. We believe these measures will allow us to accelerate our growth strategy and achieve our long-term financial goals. We remain committed to maintaining our critical investments and capacity to run our business while continuing to innovate.

Additionally, during the third quarter of 2020, the U.S dollar depreciated against most of the major currencies in the markets where we do business. In the markets where we have our largest exposure to foreign currency, the Eurozone and China, the U.S. dollar depreciated against the Euro and Chinese yuan by approximately 4% each. See “Results of Operations” below for additional discussion on the impact of foreign exchange rates on our business for the three and nine month periods ended September 30, 2020. We have hedging programs in place to help mitigate the risks associated with foreign currency exchange rate fluctuations. However, there can be no assurance such hedges will offset more than a portion of the financial impact resulting from movements in the foreign currency markets in which we do business. (See Note 5 - Derivative instruments and hedging activities of Notes to Consolidated Financial Statements for additional details concerning hedging programs).

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During the three and nine months ended September 30, 2020, we saw continued volatility in the exchange rates between the U.S. dollar and many of the currency markets where we have exposure. As of the date of this filing, the U.S. dollar index, as tracked by the St. Louis Federal Reserve is lower than its ten-year high by approximately 9%, but remains higher than its ten-year average by approximately 11%. See “Results of Operations” below for additional discussion on the impact of foreign exchange rates on our business for the three and nine months ended September 30, 2020. See “Our Revenues are Subject to Seasonal Variations” under “Risk Factors” for additional discussion of potential fluctuations in our net sales.

Acquisitions and divestitures

On January 15, 2020, we completed the sale of AWR Corporation for approximately $161 million. We recognized a gain of approximately $160 million on the sale. The gain is included within "Gain on sale of business" in the consolidated statements of income, which also included approximately $1 million of transaction costs. (See Note 1 - Basis of presentation of Notes to Consolidated Financial Statements for additional details concerning the divestiture of the AWR business.)

On July 2, 2020, we completed the acquisition of OptimalPlus. Total proceeds used to acquire the business and replace certain unvested share options consisted of approximately $365 million in cash, inclusive of $18 million in cash acquired, subject to final working capital adjustments. (See Note 1 - Basis of presentation and Note 17 - Acquisitions of Notes to Consolidated Financial Statements for additional details concerning this acquisition.)

Critical Accounting Estimates

In preparing our consolidated financial statements, we make assumptions, judgments and estimates that can have a significant impact on our net sales, operating income and net income, as well as on the value of certain assets and liabilities on our condensed consolidated balance sheets. We base our assumptions, judgments and estimates on historical experience and various other factors that we believe to be reasonable under the circumstances. At least quarterly, we evaluate our assumptions, judgments and estimates, and make changes as deemed necessary. Due to the COVID-19 pandemic, there has been uncertainty and disruption in the global economy and financial markets. We are not aware of any specific event or circumstance that would require updates to our estimates or judgments or require us to revise the carrying value of our assets or liabilities as of the date of issuance of this Quarterly Report on Form 10-Q.

These estimates may change as new events occur and additional information is obtained. Actual results could differ materially from these estimates under different assumptions or conditions. For further information about our critical accounting estimates, see the discussion in Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations,” under the heading “Critical Accounting Estimates” in our Form 10-K.

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Results of Operations  

The following table sets forth, for the periods indicated, the percentage of net sales represented by certain items reflected in our Consolidated Statements of Income:  

	Three Months Ended September 30,				Nine Months Ended September 30,
	(Unaudited)				(Unaudited)
	2020		2019		2020		2019
Net sales:
Americas	41.2	%	42.0	%	40.7	%	40.0	%
EMEA	25.5		26.4		26.1		27.8
APAC	33.3		31.6		33.2		32.2
Total net sales	100.0		100.0		100.0		100.0
Cost of sales	29.9		25.2		28.5		24.9
Gross profit	70.1		74.8		71.5		75.1
Operating expenses:
Sales and marketing	35.6		33.5		36.0		35.7
Research and development	23.0		19.6		22.5		20.4
General and administrative	12.1		10.5		10.1		9.4
Total operating expenses	70.8		63.5		68.6		65.5
Gain on sale of business/asset	—		7.9		17.4		2.7
Operating (loss) income	(0.7)		19.1		20.3		12.3
Other (expense) income	(0.6)	%	0.7	%	(0.3)	%	0.5	%
Income before income taxes	(1.3)		19.8		20.0		12.8
Provision for income taxes	0.2		4.6		4.9		2.3
Net (loss) income	(1.5)	%	15.2	%	15.1	%	10.5	%

  Figures may not sum due to rounding.

Net Sales.  The following table sets forth our net sales for the three and nine months ended September 30, 2020 and 2019 along with the changes between the corresponding periods.

	Three Months Ended September 30,						Nine Months Ended September 30,
	(Unaudited)						(Unaudited)
					Change						Change
(In millions)	2020		2019		Dollars	Percentage	2020		2019		Dollars	Percentage
Product sales	$	269.7	$	305.2	(35.6)	(12)%	$	809.9	$	882.7	(72.9)	(8)%
Software maintenance sales	38.5		35.2		3.3	9%	108.9		103.0		5.9	6%
Total net sales	$	308.1	$	340.4	(32.3)	(9)%	$	918.8	$	985.7	(66.9)	(7)%

Figures may not sum due to rounding.

The divestiture of our AWR business in January 2020 reduced our net sales by approximately 2% during each of the three and nine months ended September 30, 2020, compared to the same periods in 2019. The effect of changes in foreign currency exchange rates further reduced net sales by approximately 1% during the same periods. The increases in software maintenance for the three and nine months ended September 30, 2020 were primarily attributable to renewals of our enterprise-wide software agreements and for the three months ended September 30, 2020, our recently acquired OptimalPlus business.

The remaining decreases in our net sales during the three and nine months ended September 30, 2020 were driven by weaker demand, particularly during the third quarter of 2020, primarily attributable to the ongoing COVID-19 pandemic. On a global basis, we saw significant weakness in orders from our transportation customers and some of our broad-based industrial portfolio offerings, which was partially offset by increased demand for system-level offerings from our ADG customers.

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Orders with a value greater than $20,000 decreased by 4% year over year during each of the three months ended September 30, 2020, and 2019. Orders with a value less than $20,000 decreased by 11% year over year during the three months ended September 30, 2020, compared to the year over year decrease of 6% in the three months ended September 30, 2019. Orders with a value greater than $20,000 increased by 1% year over year during the nine months ended September 30, 2020, and 2019. Orders with a value less than $20,000 decreased by 14% year over year compared to the year over year decrease of 6% in the nine months ended September 30, 2019. During the three months ended September 30, 2020 and 2019, orders with a value greater than $20,000 were 62% and 60% of our total orders, respectively, and for the nine months ended September 30, 2020 and 2019, these orders were 62% and 59% of our total orders, respectively. Orders with a value greater than $20,000, particularly those orders with a value greater than $100,000, are subject to greater discount variability and are therefore more volatile compared to our other orders.

The following table sets forth our net sales by geographic region for the three and nine months ended September 30, 2020 and 2019 along with the changes between the corresponding periods and the region’s percentage of total net sales.

	Three Months Ended September 30,								Nine Months Ended September 30,
	(Unaudited)								(Unaudited)
							Change								Change
(In millions)	2020			2019			Dollars	Percentage	2020			2019			Dollars	Percentage
Americas	$127.0			$143.1			(16.1)	(11)%	$	373.8		$	394.7		(20.9)	(5)%
Percentage of total net sales	41.2		%	42.0		%			40.7		%	40.0		%
EMEA	78.5			$	89.7		(11.2)	(12)%	239.9			274.1			(34.1)	(12)%
Percentage of total net sales	25.5		%	26.4		%			26.1		%	27.8		%
APAC	$	102.5		$	107.6		(5.1)	(5)%	305.1			317.0			(11.9)	(4)%
Percentage of total net sales	33.3		%	31.6		%			33.2		%	32.2		%

Figures may not sum due to rounding.

We expect sales outside of the Americas to continue to represent a significant portion of our net sales. We intend to continue to expand our international operations and to continue to increase the use of distributors to sell our products in some countries.  Almost all of the sales made by our direct sales offices in the Americas (excluding the U.S.), EMEA, and APAC are denominated in local currencies, and accordingly, the U.S. dollar equivalent of these sales is affected by changes in foreign currency exchange rates. In order to provide a framework for assessing how our underlying business performed excluding the effects of foreign currency fluctuations between periods, we compare the percentage change in our results from period to period using constant currency disclosure. To calculate the change in constant currency, current and comparative prior period results for entities reporting in currencies other than U.S. Dollars are converted into U.S. Dollars at constant exchange rates (i.e., the average rates in effect during the three and nine months ended September 30, 2020).

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The following tables present this information, along with the impact of changes in foreign currency exchange rates on sales denominated in local currencies, for the three and nine months ended September 30, 2020.

	Three Months Ended September 30, 2019		Change in Constant Dollars		Impact of changes in foreign currency exchange rates on net sales		Three Months Ended September 30, 2020
(In millions)	GAAP  Net Sales		Dollars	Percentage	Dollars	Percentage	GAAP  Net Sales
Americas	$	143.1	(15.8)	(11.0)%	(0.3)	(0.2)%	$	127.0
EMEA	$	89.7	(11.5)	(12.8)%	0.3	0.3%	$	78.5
APAC	$	107.6	(3.1)	(2.9)%	(1.9)	(1.8)%	$	102.5
Total net sales	$	340.4	(30.4)	(8.9)%	(2.0)	(0.7)%	$	308.1
	Nine Months Ended September 30, 2019		Change in Constant Dollars		Impact of changes in foreign currency exchange rates on net sales		Nine Months Ended September 30, 2020
(In millions)	GAAP  Net Sales		Dollars	Percentage	Dollars	Percentage	GAAP  Net Sales
Americas	$	394.7	(20.1)	(5.1)%	(0.8)	(0.2)%	$	373.8
EMEA	$	274.1	(31.4)	(11.5)%	(2.7)	(1.0)%	$	239.9
APAC	$	317.0	(6.2)	(2.0)%	(5.7)	(1.8)%	$	305.1
Total net sales	$	985.7	(57.7)	(5.9)%	(9.2)	(1.0)%	$	918.8

  Figures may not sum due to rounding.

To help protect against changes in U.S. dollar equivalent value caused by fluctuations in foreign currency exchange rates of forecasted foreign currency cash flows resulting from international sales, we maintain a foreign currency cash flow hedging program. We hedge portions of our forecasted net sales denominated in foreign currencies with average rate forward contracts. During the three months ended September 30, 2020 and 2019, these hedges had the effect of increasing our net sales by $0.3 million and increasing our net sales by $3.3 million, respectively. During the nine months ended September 30, 2020 and 2019, these hedges had the effect of increasing our net sales by $5.6 million and increasing our net sales by $7.7 million, respectively. (See Note 5 - Derivative instruments and hedging activities of Notes to Consolidated Financial Statements for further discussion regarding our cash flow hedging program and its related impact on our net sales for 2020 and 2019). 

Gross Profit. Our gross profit as a percentage of sales is impacted by many factors including changes in the amount of revenues from our large customers and changes in the foreign currency exchange markets. We continue to focus on cost control and cost reduction measures throughout our manufacturing cycle. The following table sets forth our gross profit and gross profit as a percentage of net sales for the three and nine months ended September 30, 2020 and 2019 along with the percentage changes in gross profit for the corresponding periods.

	Three Months Ended September 30,		Nine Months Ended September 30,
	(Unaudited)		(Unaudited)
(In millions)	2020	2019	2020	2019
Gross Profit	$215.9	$254.5	$656.9	$740.0
% change compared with prior period	(15.2)%		(11.2)%
Gross Profit as a percentage of net sales	70.1%	74.8%	71.5%	75.1%

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The decreases in our gross profit and gross profit as a percentage of net sales were primarily related to the following:

	Three Months Ended		Nine Months Ended
	(Unaudited)		(Unaudited)
September 30, 2019	74.8	%	75.1	%
Impact of acquisition-related intangible amortization, fair value adjustments and sales mix related to OptimalPlus	(1.7)	%	(0.5)	%
Changes in sales mix related to recently divested AWR business (included in comparative period)	(0.6)	%	(0.6)	%
Changes in sales mix related to service cost reallocation	(0.9)	%	(0.9)	%
Increase in outbound freight and other logistics costs due to COVID-19 pandemic	(0.7)	%	(0.8)	%
Changes in foreign currency exchange rates	(0.2)	%	(0.3)	%
Other product material variances and reserves	(0.6)	%	(0.5)	%
September 30, 2020	70.1	%	71.5	%

The operational changes in our services cost structure are the result of a strategic focus on further monetization of some of our services offerings. Consequently, certain amounts presented within operating expenses as "Sales and Marketing" in comparative periods are now included within our "Cost of sales" line items. These changes did not have an impact on our operating income or net income during the periods presented.

For the three months ended September 30, 2020 and 2019, the change in exchange rates had the effect of decreasing our cost of sales by $0.3 million and $0.7 million, respectively. For the nine months ended September 30, 2020 and 2019, the change in exchange rates had the effect of decreasing our cost of sales by $2.1 million and $3.6 million, respectively. To help protect against changes in our cost of sales caused by a fluctuation in foreign currency exchange rates of forecasted foreign currency cash flows, we have a foreign currency cash flow hedging program. We hedge portions of our forecasted costs of sales denominated in foreign currencies with average rate forward contracts. During the three months ended September 30, 2020 and 2019, these hedges had the effect of increasing our cost of sales by $0.4 million and $0.2 million, respectively. During the nine months ended September 30, 2020 and 2019, these hedges had the effect of increasing our cost of sales by $1.8 million and $0.2 million, respectively. (See Note 5 - Derivative instruments and hedging activities of Notes to Consolidated Financial Statements for further discussion regarding our cash flow hedging program and its related impact on our cost of sales for 2020 and 2019).

We do not typically maintain a large amount of order backlog as orders typically translate to sales quickly. As such, any weakness in orders typically has a pronounced impact on our net sales in the short term.

Operating Expenses. The following table sets forth our operating expenses for the three and nine months ended September 30, 2020 and 2019, along with the percentage changes between the corresponding periods and the line item as a percentage of total net sales.

	Three Months Ended September 30,					Nine Months Ended September 30,
	(Unaudited)					(Unaudited)
(In thousands)	2020		2019		Change	2020		2019		Change
Sales and marketing	$	109,774	$	113,922	(4)%	$	330,939	$	352,340	(6)%
Percentage of total net sales	36%		33%			36%		36%
Research and development	$	70,802	$	66,558	6%	$	206,648	$	200,981	3%
Percentage of total net sales	23%		20%			22%		20%
General and administrative	$	37,431	$	35,711	5%	$	92,980	$	92,639	—%
Percentage of total net sales	12%		10%			10%		9%
Total operating expenses	$	218,007	$	216,191	1%	$	630,567	$	645,960	(2)%
Percentage of total net sales	71%		64%			69%		66%

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The year over year increase of $2 million in our operating expenses during the three months ended September 30, 2020 was primarily related to the following:

•$16 million increase attributable to acquisition-related transaction and integration costs, compensation expense related to unvested options acquired and replaced with cash-settled awards that will be recognized as post-combination expense over the remaining service period, amortization of acquisition-related intangibles, and higher operating costs related to our recently acquired OptimalPlus business, which were partially offset by a reduction in operating costs related to the divestment of our AWR business.

•$3 million increase related to lower software development costs eligible for capitalization;

•$1 million increase in non-acquisition personnel costs, primarily attributable to higher salaries and additional stock-based compensation expense (due to comparatively higher stock prices on the grant date of unvested RSU awards and a shorter average service period for our awards), partially offset by reductions in benefit costs due to lower headcount, and reduced severance costs;

•$(8) million decrease in travel and event related expenses related to the travel restrictions from COVID-19;

•$(7) million decrease related to a large charitable contribution made during the same period in 2019; and

•$(3) million decrease attributable to the strategic reallocation of resources related to the delivery of certain services offerings. The cost related to these activities are now classified as “Cost of Sales” whereas historically they were presented as “Sales and Marketing” expenses, as further discussed above under “Gross Profit”

The year over year decrease of $15 million in our operating expenses during the nine months ended September 30, 2020 was primarily related to the following:

•$(23) million decrease in travel and event related expenses related to the travel restrictions from COVID-19;

•$(9) million decrease attributable to the strategic reallocation of resources related to the delivery of certain services offerings. The cost related to these activities are now classified as “Cost of Sales” whereas historically they were presented as “Sales and Marketing” expenses, as further discussed above under “Gross Profit”;

•$(7) million decrease related to a large charitable contribution made during the same period in 2019;

•$(1) million decrease related to the effect of changes in foreign currency exchange rates;

•$13 million increase in non-acquisition related personnel costs, primarily attributable to higher salaries and additional stock-based compensation expense (due to comparatively higher stock prices on the grant date of unvested RSU awards and a shorter average service period for our awards) and higher severance costs, partially offset by lower benefits related to lower headcount;

•$7 million increase related to transaction and integration costs, compensation expense related to unvested options acquired that were replaced with cash-settled awards and accounted for as post-combination expense over the remaining service period, amortization of acquisition-related intangibles, and lower operating costs related to our recently divested AWR business that were partially offset by operating costs of our recently acquired OptimalPlus business; and

•$4 million increase related to lower software development costs eligible for capitalization

Gain on sale of business/asset. On January 15, 2020, we completed the sale of our AWR subsidiary and recognized a gain on the sale of $160 million. On August 29, 2019, we sold an office building and property located in Austin, Texas and recognized a gain on the sale of $27 million. These amounts are presented as "Gain on sales of business/asset" in our Consolidated Statements of Income.

Operating (Loss) Income.  For the three months ended September 30, 2020 and 2019, operating (loss) income was $(2) million and $65 million. As a percentage of net sales, operating (loss) income was (0.7)% and 19.1% for the three months ended September 30, 2020 and 2019, respectively. For the nine months ended September 30, 2020 and 2019, operating income was $186 million and $121 million, respectively. The decrease in operating income in absolute dollars for the three months ended September 30, 2020, compared to the three months ended September 30, 2019, is attributable to the factors discussed in Net Sales, Gross Profit and Operating Expenses above. The increase in operating income in absolute dollars for the nine months ended September 30, 2020, compared to the nine months ended September 30, 2019, is primarily attributable to the approximately $160 million gain on sale of our AWR subsidiary, partially offset by the factors discussed in Net Sales, Gross Profit and Operating Expenses above.

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Other (Expense) Income.  

• Interest Income. For the three months ended September 30, 2020 and 2019, interest income was $0.4 million and $1.9 million, respectively. For the nine months ended September 30, 2020 and 2019, interest income was $3.7 million and $6.2 million, respectively. In response to the negative economic impact of COVID-19, the Federal Reserve took aggressive action to cut the Federal Funds Rate to a target range of zero to 0.25%. We expect this to result in lower yields on our cash, cash equivalents and short-term investments and to have a negative impact on our interest income for the remainder of 2020.

• Interest Expense. For the three and nine months ended September 30, 2020, interest expense was approximately $1 million due to borrowings outstanding under our Credit Agreement. Refer to Note 13 - Debt and Note 18 - Subsequent events for additional information regarding the terms of our Credit Agreement and related borrowings.

•Net Foreign Exchange Gain/Loss. For the three months ended September 30, 2020 and 2019, net foreign exchange loss was $0.7 million and $0.4 million, respectively. During the nine months ended September 30, 2020 and 2019, net foreign exchange loss was $2.0 million and $1.6 million, respectively. These results are attributable to movements in the foreign currency exchange rates between the U.S. dollar and foreign currencies in subsidiaries for which our functional currency is not the U.S. dollar. For the first nine months of 2020, we saw continued volatility in the exchange rates between the U.S. dollar and many of the currency markets where we have exposure. In the past, we have noted that volatility in the foreign currency exchange markets in which we do business has had a significant impact on the revaluation of our foreign currency denominated firm commitments, on our ability to forecast our U.S. dollar equivalent net sales and expenses and on the effectiveness of our hedging programs. We cannot predict to what degree foreign currency markets will fluctuate in the future. In the past, these dynamics have also adversely affected our net sales growth in international markets and may pose similar challenges in the future. We recognize the local currency as the functional currency in virtually all of our international subsidiaries. See “Results of Operations - Net Sales” above for additional discussion on the impact of foreign exchange rates on our net sales of operations for the three and nine months ended September 30, 2020.

We utilize foreign currency forward contracts to hedge our foreign denominated net foreign currency balance sheet positions to help protect against the change in value caused by a fluctuation in foreign currency exchange rates. We typically hedge up to 90% of our outstanding foreign denominated net receivable or payable positions and typically limit the duration of these foreign currency forward contracts to approximately 90 days. The gain or loss on these derivatives as well as the offsetting gain or loss on the hedged item attributable to the hedged risk is recognized in current earnings under the line item “Other (expense) income.” Our hedging strategy increased our foreign exchange loss by $0.3 million and decreased our foreign exchange loss by $0.3 million in the three months ended September 30, 2020 and September 30, 2019, respectively. Our hedging strategy increased our foreign exchange loss by $0.2 million and increased our foreign exchange loss by $0.1 million in the nine months ended September 30, 2020 and 2019, respectively.  (See Note 5 - Derivative instruments and hedging activities of Notes to Consolidated Financial Statements for a further description of our derivative instruments and hedging activities).

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Provision for Income Taxes.    For the three months ended September 30, 2020 and 2019, our provision for income taxes reflected an effective tax rate of (11)% and 23%, respectively. For the nine months ended September 30, 2020 and 2019, our provision for income taxes reflected an effective tax rate of 24% and 18%, respectively. The factors that caused our effective tax rate to change year over year are detailed in the table below:

	Three Months Ended		Nine Months Ended
	September 30, 2020		September 30, 2020
	(Unaudited)		(Unaudited)
Effective tax rate at September 30, 2019	23	%	18	%
Foreign taxes greater than federal statutory rate	(29)		8
Global intangible low-taxed income inclusion ("GILTI")	(6)		(1)
Foreign-derived intangible income deduction	(10)		(6)
Nondeductible officer compensation	2		2
Change in unrecognized tax benefits	—		2
Employee share-based compensation	6		5
Research and development tax credit	(1)		(4)
State income taxes, net of federal benefit	3		1
Change in intercompany prepaid tax asset	1		1
Gain on sale of AWR business	—		(5)
Transition tax on deferred foreign income	(4)		(2)
Nondeductible acquisition costs	5		5
Capital gain on asset sale	(1)		—
Effective tax rate at September 30, 2020	(11)	%	24	%

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Other operational metrics  

We believe that the following additional unaudited operational metrics assist investors in assessing our operational performance relative to others in our industry and to our historical results. The following tables provide details with respect to the amount of GAAP charges related to stock-based compensation, amortization of acquisition-related intangibles, acquisition-related transaction costs and fair value adjustments, restructuring charges, gain on sale of business, and capitalization and amortization of internally developed software costs that were recorded in the line items indicated below (in thousands).

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	Three Months Ended September 30,				Nine Months Ended September 30,
	(Unaudited)				(Unaudited)
	2020		2019		2020		2019
Stock-based compensation
Cost of sales	$	1,051	$	904	$	2,787	$	2,587
Sales and marketing	5,184		5,231		16,826		14,745
Research and development	4,692		4,099		12,640		12,029
General and administrative	4,293		3,158		10,301		8,693
Provision for income taxes	(3,854)		(2,128)		(8,260)		(7,904)
Total	$	11,366	$	11,264	$	34,294	$	30,150

	Three Months Ended September 30,				Nine Months Ended September 30,
	(Unaudited)				(Unaudited)
	2020		2019		2020		2019
Amortization of acquisition-related intangibles
Revenue	$	1,299	$	—	$	1,299	$	—
Cost of sales	$	4,198	$	833	$	5,579	$	2,525
Sales and marketing	2,334		492		3,300		1,485
Research and development	28		28		84		84
Other income, net	121		124		363		285
Provision for income taxes	(1,658)		(190)		(1,948)		(576)
Total	$	6,322	$	1,287	$	8,677	$	3,803

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	Three Months Ended September 30,				Nine Months Ended September 30,
	(Unaudited)				(Unaudited)
	2020		2019		2020		2019
Acquisition transaction costs, restructuring charges, and other
Cost of sales	$	(13)	$	—	$	7	$	—
Sales and marketing	1,158		2,993		8,771		8,290
Research and development	374		244		5,190		899
General and administrative	10,210		7,998		12,595		9,525
Gain on sale of business	—		(26,842)		(159,753)		(26,842)
Other (income) expense, net	270		—		397		—
Provision for income taxes	(712)		3,090		33,965		1,240
Total	$	11,287	$	(12,517)	$	(98,828)	$	(6,888)

	Three Months Ended September 30,				Nine Months Ended September 30,
	(Unaudited)				(Unaudited)
	2020		2019		2020		2019
Capitalization and amortization of internally developed software costs
Cost of sales	$	6,769	$	6,954	$	20,995	$	20,073
Research and development	302		(2,682)		(2,794)		(7,179)
Provision for income taxes	(1,485)		(897)		(3,822)		(2,708)
Total	$	5,586	$	3,375	$	14,379	$	10,186

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Liquidity and Capital Resources  

Overview

At September 30, 2020, we had $290 million in cash, cash equivalents and short-term investments. Our cash and cash equivalent balances are held in numerous financial institutions throughout the world, including substantial amounts held outside of the U.S., however, all of our short-term investments that are located outside of the U.S. are denominated in the U.S. dollar with the exception of $5 million U.S. dollar equivalent of corporate bonds that are denominated in Euro. The following table presents the geographic distribution of our cash, cash equivalents, and short-term investments as of September 30, 2020 (in millions):

	Domestic	International	Total
Cash and cash equivalents	$77.8	$119.5	$197.3
	39%	61%
Short-term investments	$68.8	$24.1	$92.9
	74%	26%
Total cash, cash equivalents and short-term investments	$146.6	$143.6	$290.2
	51%	49%

The following table presents our working capital, cash and cash equivalents and short-term investments:    

	September 30, 2020		December 31,		Increase/
(In thousands)	(unaudited)		2019		(Decrease)
Working capital	$	456,513	$	641,235	$	(184,722)
Cash and cash equivalents (1)	197,319		194,616		2,703
Short-term investments (1)	92,853		237,983		(145,130)
Total cash, cash equivalents and short-term investments	$	290,172	$	432,599	$	(142,427)
(1) Included in working capital

Our principal sources of liquidity include cash, cash equivalents and marketable securities, as well as the cash flows generated from our operations and available borrowing capacity under our Credit Agreement.

The primary driver of the net decrease in working capital between December 31, 2019 and September 30, 2020 was the $142 million decrease in total cash, cash equivalents, and short-term investments primarily due to our OptimalPlus acquisition partially offset by the divestiture of our AWR business. Additionally, other changes in working capital were related to:

◦Accounts receivable, net decreased by $34 million. The decrease in accounts receivable is primarily related to variations in our quarterly net sales.

◦Inventory increased by $9 million to $210 million at September 30, 2020, from $200 million at December 31, 2019. Inventory turns on a trailing twelve month basis were 1.5 at each of September 30, 2020 and December 31, 2019, respectively. The increase in inventory was primarily attributable to lower sales than anticipated during the first nine months of 2020.

◦The current portion of deferred revenue decreased by $15 million, which was primarily related to the divestment of our AWR business and lower sales during the trailing twelve months, partially offset by the fair value of deferred revenue acquired from OptimalPlus.

◦Accrued compensation increased by $6 million which was primarily related to estimated payments under our annual incentive plan.

◦Other current liabilities increased by $30 million which was primarily related to the timing of certain tax payments.

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◦Other taxes payable increased by $1 million primarily related to the timing of payments for VAT and other indirect taxes.

Analysis of Cash Flow

The following table summarizes our cash flow results for the nine months ended September 30, 2020 and 2019.

	Nine Months Ended September 30,
(In thousands)	(unaudited)
	2020		2019
Cash provided by operating activities	$	108,784	$	149,345
Cash (used in) provided by investing activities	(77,374)		26,300
Cash used in financing activities	(29,024)		(210,431)
Effect of exchange rate changes on cash	317		(1,827)
Net change in cash and cash equivalents	2,703		(36,613)
Cash and cash equivalents at beginning of year	194,616		259,386
Cash and cash equivalents at end of period	$	197,319	$	222,773

Operating Activities

Cash provided by operating activities is comprised of net income adjusted for certain items and changes in working capital. Cash flows from operating activities can fluctuate significantly from period to period as working capital needs and the timing of payments for income taxes, variable pay, restructuring activities, and other items impact reported cash flows.

Cash provided by operating activities for the nine months ended September 30, 2020 decreased by $41 million compared to the same period in 2019. This was primarily related to an $86 million decrease in net income adjusted for certain items, including stock-based compensation, depreciation and amortization, and gain on sale of assets/businesses, which was partially offset by favorable changes in cash provided by operating assets and liabilities of $45 million that were primarily related to the following:

•The aggregate of accounts receivable, inventory and accounts payable provided net cash of $19 million during the nine months ended September 30, 2020 compared to net cash provided of $10 million in the comparable period in 2019. The amount of cash flow generated from or used by the aggregate of accounts receivable, inventory and accounts payable depends upon the cash conversion cycle, which represents the number of days that elapse from the day we pay for the purchase of raw materials and components to the collection of cash from our customers and can be significantly impacted by the timing of shipments and purchases, as well as collections and payments in a period.

◦The aggregate of income taxes payable and other indirect taxes provided net operating cash of $27 million during the nine months ended September 30, 2020 compared to net cash used of $9 million in the comparable period in 2019. The year over year change is primarily attributable to the timing of payments of federal income taxes, payroll taxes, and other indirect taxes.

◦The aggregate of accrued compensation, prepaid assets, deferred revenue and other assets and liabilities used net operating cash of $19 million during the nine months ended September 30, 2020 compared to net cash used of $19 million in the comparable period in 2019.

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Investing Activities

Cash used by investing activities for the nine months ended September 30, 2020 increased by $104 million compared to the cash provided by investing activities for the same period in 2019. This was primarily attributable to $335 million used to acquire OptimalPlus in July 2020, which was partially offset by a $6 million decrease in cash outflows related to equity method investments, a $128 million increase in proceeds received from the sale of divested business and disposal of assets, an $82 million increase in proceeds from the net sales of short-term investments, and a $15 million decrease in cash outflows related to capital expenditures and internally developed software costs eligible for capitalization, compared to the same period in 2019. The net sale of short-term investments was primarily driven by funding needs for our acquisition of OptimalPlus and stock repurchase activities during 2020.

Financing Activities

Cash used in financing activities decreased by $181 million for the nine months ended September 30, 2020 compared to the same period in 2019. This was primarily related to an $88 million increase in proceeds received under our term loan and revolving loan facilities, net of issuance costs and repayments, and a $98 million decrease in cash used to repurchase our common stock, partially offset by an increase of $3 million related to our quarterly dividends. (See Note 11 – Authorized shares of common and preferred stock and stock based compensation plans of Notes to Consolidated Financial Statements for additional discussion about our equity compensation plans and share repurchase program).

Contractual Cash Obligations.     Information related to our contractual obligations as of December 31, 2019 can be found in “Management’s Discussion and Analysis of Financial Condition and Results of Operations-Contractual Obligations,” in Part II-Item 7 of the Form 10-K. At September 30, 2020, there were no material changes outside the ordinary course of business to our contractual obligations from those reported in our Form 10-K. See Note 8 - Leases of Notes to Consolidated Financial Statements for additional information regarding our non-cancellable operating lease obligations as of September 30, 2020.

Below are the payments due by period for our debt outstanding as of September 30, 2020:

	Payments due by period
(In thousands)	Total		2020	2021	2022	2023	2024	Beyond
Term Loan	$	69,125	875	3,500	3,500	61,250
Revolving Loan	$	20,000	—	—	—	20,000	—	—

Credit Agreement. Refer to Note 13 - Debt of Notes to Consolidated Financial Statements for additional details on our secured term loan and secured revolving loan facilities. As of September 30, 2020, we had $55 million in available borrowing capacity under the revolving loan facility. Subject to the terms and conditions of the Credit Agreement, including obtaining commitments from existing lenders or new lenders, we may request additional term loan or revolving commitments of up to $105 million in the aggregate. Proceeds of additional borrowings made under the Credit Agreement may be used for working capital and other general corporate purposes. We may prepay the loans under the Credit Agreement in whole or in part at any time without premium or penalty. Certain of our existing and future material domestic subsidiaries are required to guaranty our obligations under the Credit Agreement. Refer to Note 18 - Subsequent Events of Notes to Consolidated Financial Statements for additional discussion on changes to the terms of our Credit Agreement during the fourth quarter of 2020.

Off-Balance Sheet Arrangements.    We do not have any off-balance sheet debt. At September 30, 2020, we did not have any relationships with any unconsolidated entities or financial partnerships, such as entities often referred to as structured finance entities, which would have been established for the purpose of facilitating off-balance sheet arrangements. As such, we are not exposed to any financing, liquidity, market or credit risk that could arise if we were engaged in such relationships.  

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Prospective Capital Needs.    We believe that our existing cash, cash equivalents and short-term investments, together with cash generated from operations as well as from the purchase of common stock through our employee stock purchase plan, will be sufficient to cover our working capital needs, capital expenditures, investment requirements, commitments, payment of dividends to our stockholders and repurchases of our common stock for at least the next 12 months. The Tax Cuts and Jobs Act allows us to continue to repatriate our foreign cash for domestic needs without additional taxation. We may seek to pursue additional financing or to raise additional funds by seeking an increase in our borrowing capacity under our Credit Agreement, as amended, or selling equity or debt to the public or in private transactions from time to time. If we elect to raise additional funds, we may not be able to obtain such funds on a timely basis or on acceptable terms, if at all. If we raise additional funds by issuing additional equity or convertible debt securities, the ownership percentages of our existing stockholders would be reduced. In addition, the equity or debt securities that we issue may have rights, preferences or privileges senior to those of our common stock.

Although we believe that we have sufficient capital to fund our operating activities for at least the next 12 months, our future capital requirements may vary materially from those now planned. We anticipate that the amount of capital we will need in the future will depend on many factors, including:  

•the impact of the COVID-19 pandemic on our net sales, supply chain and ability to operate our business in an efficient manner;

•general economic and political uncertainty and specific conditions in the markets we address, including any volatility in the industrial economy in the various geographic regions in which we do business;

•repurchases of our common stock;

•payment of dividends to our stockholders; 

•required levels of research and development and other operating costs;

•our business, product, capital expenditure and research and development plans, and product and technology roadmaps; 

•acquisitions of other businesses, assets, products or technologies; 

•the overall levels of sales of our products and gross profit margins;

•the levels of inventory and accounts receivable that we maintain;

•the inability of certain of our customers who depend on credit to have access to their traditional sources of credit to finance the purchase of products from us, which may lead them to reduce their level of purchases or to seek credit or other accommodations from us;

•capital improvements for facilities; 

•repayment of principal and interest required under our borrowing arrangements;

•our relationships with suppliers and customers; and 

•the level of stock purchases under our employee stock purchase plan.

Recently Issued Accounting Pronouncements  

See Note 1 – Basis of presentation in Notes to Consolidated Financial Statements. 

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Item 3. Quantitative and Qualitative Disclosures About Market Risk

Changes in currency exchange rates and interest rates are our primary financial market risks. Quantitative and qualitative disclosures about market risk appear in “Item 7A. Quantitative and Qualitative Disclosures About Market Risk” in Part II of our Form 10-K and the material changes during the nine months ended September 30, 2020 to this information reported in our Form 10-K are described below.

Interest Expense Risk

Our borrowings under our term loan and revolving loan facilities bear interest at a variable rate which exposes us to market risk related to changes in interest rates. We have not entered into derivative transactions related to our borrowing arrangements. The primary base interest rate is LIBOR. Assuming the outstanding balance on our floating rate indebtedness remains constant over a year, a 100-basis point increase in the interest rate would decrease annual net income and cash flow by less than $1 million. We do not expect changes in interest rates to have a material adverse effect on our income or our cash flows in 2020. However, we can give no assurance that interest rates will not significantly change in the future.

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Item 4. Controls and Procedures 

Evaluation of Disclosure Controls and Procedures

Based on an evaluation under the supervision and with the participation of our management, our principal executive officer and our principal financial officer have concluded that our disclosure controls and procedures as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act were effective as of September 30, 2020, to ensure that information required to be disclosed by us in reports that we file or submit under the Exchange Act is (i) recorded, processed, summarized and reported within the time periods specified in the SEC rules and forms and (ii) accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control Over Financial Reporting

There were no changes in our internal control over financial reporting during the third quarter of 2020, which were identified in connection with management’s evaluation required by paragraph (d) of Rules 13a-15 and 15d-15 under the Exchange Act, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II - OTHER INFORMATION

Item 1. Legal Proceedings

We are not currently a party to any material litigation. However, in the ordinary course of our business, we have in the past, are currently and will likely become involved in various legal proceedings, claims, and regulatory, tax or government inquiries and investigations, and could incur uninsured liability in any one or more of them. We also periodically receive notifications from various third parties related to alleged infringement of patents or intellectual property rights, commercial disputes or other matters. No assurances can be given with respect to the extent or outcome of any investigation, litigation or dispute.

Item 1A. Risk Factors

Our business, financial condition and operating results can be affected by a number of factors, whether currently known or unknown, including but not limited to those described in Part I, Item 1A of the Form 10-K under the heading “Risk Factors,” any one or more of which could, directly or indirectly, cause our actual financial condition and operating results to vary materially from past, or from anticipated future, financial condition and operating results. Any of these factors, in whole or in part, could materially and adversely affect our business, financial condition, operating results and stock price.

The following risk factors are provided to update the risk factors previously disclosed under the heading “Risk Factors” in our Form 10-K. The developments described in the additional risk factors presented below have heightened, or in some cases manifested, certain of the risks disclosed in the other risk factors identified in the “Risk Factors” section of our Form 10-K, and such risk factors are further qualified by the information relating to the COVID-19 pandemic that is described in this Report.

The COVID-19 pandemic has had, and is expected to continue to have, an adverse impact on our business, results of operations, financial position and cash flows and the duration and extent to which this will impact our future results of operations and overall financial performance remains uncertain.

In March 2020, the World Health Organization declared the outbreak of COVID-19 a pandemic, which continues to spread throughout the U.S. and the world and has resulted in authorities implementing numerous measures designed to contain the virus, including travel bans and restrictions, quarantines, shelter-in-place orders, and business limitations and shutdowns. We are closely monitoring the impact of the pandemic on all aspects of our business, including how it will impact our customers, employees, supply chain, and partner network. Our business and financial condition, and the business and financial condition of our customers and suppliers, was adversely impacted and continue to be adversely impacted by the significantly increased economic and demand uncertainties created by the COVID-19 outbreak and related measures to contain it.

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To support the health and well-being of our employees, customers, and communities, those employees who do not have critical in-person functions have had the option to work remotely since the first quarter of 2020. The timing and extent of our plans for employees to return to our offices will depend on a number of rapidly evolving factors for each particular location. Certain jurisdictions have begun re-opening only to return to restrictions in the face of increases in new COVID-19 cases. While we have developed and implemented and continue to develop and implement health and safety protocols, business continuity plans and crisis management protocols in an effort to try to mitigate the negative impact of COVID-19 on our employees and our business, there can be no assurance that we will be successful in our efforts, and as a result, COVID-19 could negatively impact our business, financial condition and results of operations in future periods.

The disruptions to our operations caused by COVID-19 may result in further inefficiencies, delays and additional costs in our product development, sales, marketing, manufacturing and support operations that we cannot fully mitigate through remote or other alternative work arrangements. In addition, many of our customers are working remotely, which has delayed and may further to delay the timing of some orders and deliveries expected in the fourth quarter of 2020 and beyond. Although our manufacturing sites continue to remain in operation, we have adapted certain processes in response to government measures, employee welfare concerns and the impact of COVID-19 on our global demand and supply chain. Our manufacturing operations may be adversely affected by impacts from COVID-19 including, among other things, additional government actions and other responsive measures, supply chain disruptions, quarantines and health and availability of essential onsite personnel. For example, the uncertain duration and severity of the pandemic, as well as the possibility of additional spikes in infection rates or local outbreaks of the virus, especially where our manufacturing hubs are located, could lead to shutdowns of our operations or restrictions on our ability to access our facilities, which could have an adverse effect on our ability to fulfill orders and our results in the fourth quarter of 2020 and beyond.

We currently expect that revenue for the fourth quarter of 2020 will be lower than initially anticipated at the beginning of 2020 as a result of continuing economic weakness and challenges related to obtaining and fulfilling orders due to our compliance with government-mandated or recommended shelter-in-place orders in jurisdictions in which we, our customers and our suppliers operate. For example, the pandemic may adversely impact our customers’ ability to manufacture their products, and may further adversely impact demand for our customers' products, either of which could further reduce our customers' demand for our products or services. Furthermore, certain customer facilities may continue to be unavailable to receive our products.

Furthermore, the COVID-19 pandemic continues to adversely impact the broader global economy, including negatively impacting economic growth and creating disruption and volatility in the global financial and capital markets, which increases the cost of capital and adversely impacts the availability of and access to capital, which could negatively affect our liquidity. Even after the COVID-19 outbreak has subsided, we may experience material adverse impacts to our business, results of operations and financial condition as a result of related global economic impacts, including any recession that has occurred or may occur in the future.

Although we expect that our current cash and cash equivalent balances and cash flows that are generated from operations will be sufficient to meet our domestic and international working capital needs and other capital and liquidity requirements for at least the next 12 months, if our access to capital is restricted or our borrowing costs increase, our operations and financial condition could be adversely impacted. While we have implemented global and local response teams, implemented incremental expense management efforts, and implemented business continuity efforts internally and with our customers, the duration and extent of the operational and financial impact of the COVID-19 pandemic remains highly uncertain. There can be no guarantee that any current actions or additional actions in the future will significantly mitigate the impact of the COVID-19 pandemic on the company’s business, results of operations, access to sources of liquidity or financial condition.

In addition to the above risks, the COVID-19 pandemic increases the likelihood and potential severity of other risks previously discussed in Item 1A. Risk Factors in our Form 10-K. These include, but are not limited to, the following:

•Our Product Revenues are Dependent on Certain Industries and Contractions in these Industries Could Have a Material Adverse Effect on Our Results of Operations. A protracted economic slowdown or slower than expected recovery could continue to negatively affect the financial condition of our customers, which may result in additional delays in payment and decreased sales, or an increase in bankruptcies or insolvencies.

•Our Business is Dependent on Key Suppliers and Distributors and Disruptions in these Businesses Could Adversely Affect Our Business and Results of Operations. A protracted economic slowdown could negatively affect the financial condition of our suppliers, which may result in an increase in bankruptcies or insolvencies and decreased availability of raw materials.

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•We May Experience Component Shortages that May Adversely Affect Our Business and Result of Operations. The COVID-19 pandemic has disrupted the supply of raw materials, and we may experience increased difficulties in obtaining a consistent supply of materials at stable pricing levels.

•We Rely on Management Information Systems and Interruptions in our Information Technology Systems or Cyber-Attacks on our Systems Could Adversely Affect Our Business. We have transitioned a significant subset of our employee population to a remote work environment in an effort to mitigate the spread of COVID-19. This change may exacerbate certain risks to our business, including an increased demand for information technology resources, an increased risk of phishing and other cybersecurity attacks, and an increased risk of unauthorized dissemination of sensitive personal information or proprietary or confidential information.

•We Have Established a Budget and Variations from Our Budget Will Affect Our Financial Results. We have incurred additional, unexpected costs as a result of the COVID-19 pandemic, including costs for acquisition of additional personal protective equipment (“PPE”), enhanced cleaning and environmental sanitation costs, above average freight costs, and increased labor expense. We expect such costs to continue. We are not able to reasonably predict the total amount of costs we will incur related to the pandemic, and such costs could continue to increase.

•Acquisitions, Joint Ventures, Alliances, or Similar Strategic Relationships, or Dispositions of Any of Our Businesses, and the Related Integration or Separation Risks May Disrupt or Otherwise Have a Material Adverse Effect on Our Business and Financial Results. As further discussed below, achieving the anticipated benefits of our acquisitions and other strategic transactions depends upon the successful integration of an acquired business or other venture into our existing operations. We may experience increased challenges related to our integration of acquired businesses, as well our ability to execute on potential acquisitions, as a result of the COVID-19 pandemic due to various factors including travel restrictions, global demand uncertainty, and financial market volatility.

Acquisitions, Joint Ventures, Alliances, or Similar Strategic Relationships, or Dispositions of Any of Our Businesses, and the Related Integration or Separation Risks May Disrupt or Otherwise Have a Material Adverse Effect on Our Business and Financial Results.

As part of our business strategy, we pursue selective acquisitions, as well as joint ventures, partnerships, alliances, or similar strategic transactions and relationships with third parties, to support our business. We may also undertake dispositions of certain of our businesses or products. Achieving the anticipated benefits of an acquisition or other strategic transaction depends upon whether the integration of the acquired business, products or technology is accomplished efficiently and effectively. For example, on July 2, 2020, we acquired OptimalPlus, an Israeli-based software company. The successful integration of this acquisition, as well as potential future acquisitions, depends on a variety of factors, including but not limited to:

•the achievement of anticipated cost savings, synergies, business opportunities and growth prospects from combining the acquired company,

•the scalability of production, manufacturing and marketing of products of a newly acquired company to broader adjacent markets;

•the complexities of the technologies being integrated;

•the ability to cohesively integrate operations, product definitions, price lists, delivery, and technical support for products and solutions of a newly acquired company into our existing operations;

•the compatibility of our infrastructure, operations, policies and organizations with those of the acquired company;

•the retention of key employees; and

•the management of relationships with our strategic partners, suppliers, and customer base and the necessities of integrating and retaining key personnel with disparate business backgrounds and combining different corporate cultures.

The time invested in completing any strategic transaction as well as the integration of operations following a strategic transaction also requires the dedication of management resources, which may distract attention from our day-to-day business and may disrupt key research and development, marketing or sales efforts. Our inability to successfully integrate any of our acquisitions could harm our business. The existing products or services previously sold or otherwise provided by entities we have acquired may be of a lesser quality than our products or could contain errors that produce incorrect results on which users rely or cause failure or interruption of systems or processes that could subject us to liability claims that could have a material adverse effect on our operating results or financial position. Furthermore, products acquired, developed, or marketed in connection with acquisitions or other strategic transactions may not gain acceptance in our markets, and we may not achieve the anticipated or desired benefits of such transactions.

52

Similarly, any divestitures have inherent risks, including the inability to find potential buyers with favorable terms, the expense of selling the entity, business, or product line, the possibility that any anticipated sale will be delayed or will not occur, the potential impact on our cash flows and results of operations which may dilute our earnings per share, the potential delay or failure to realize the perceived strategic or financial merits of the divestment, difficulties in the separation of operations, services, information technology, products and personnel, potential loss of customers or employees, exposure to unanticipated liabilities, unexpected costs associated with such separation, diversion of management’s attention from other business concerns and potential post-closing claims for alleged breaches of related agreements, indemnification or other disputes.

Future acquisitions or dispositions could also result in the incurrence of additional debt, contingent liabilities or amortization expenses, or write-offs of goodwill and other intangible assets, any of which could harm our financial condition.

We have outstanding debt and may incur other debt in the future, which could adversely affect our financial condition, liquidity and results of operations.

We currently have outstanding debt as well as additional borrowing capacity available under a term loan and revolving credit facility. As we have recently done, we may borrow additional amounts in the future (which borrowing would be subject to lender approval) and use the proceeds from any future borrowing for general corporate purposes, future acquisitions, expansion of our business or repurchases of our outstanding shares of common stock. Our incurrence of this debt, and increases in our aggregate levels of debt, may adversely affect our operating results and financial condition by, among other things:

•requiring a portion of our cash flow from operations to make interest payments on this debt;

•increasing our vulnerability to general adverse economic and industry conditions;

•reducing the cash flow available to fund capital expenditures and other corporate purposes and to grow our business; and

•limiting our flexibility in planning for, or reacting to, changes in our business and the industry.

Our current revolving credit facility and term loan facility, as amended, impose restrictions on us, including restrictions on our ability to create liens on our assets, the ability of our subsidiaries to incur indebtedness, the ability to make certain investments, consummate certain asset sales, or engage in certain transactions, and require us to maintain compliance with specified financial ratios. Our ability to comply with these ratios may be affected by events beyond our control. If we breach any of the covenants and do not obtain a waiver from the lenders, then, subject to applicable cure periods, our outstanding indebtedness could be declared immediately due and payable. Although we currently are in compliance with our debt agreements, if our operating and financial performance deteriorates, there would be an increased risk regarding future compliance with our debt covenants.

Additionally, the borrowings under our various debt facilities are at variable rates of interest and expose us to interest rate risk. If interest rates increase, our debt service obligations on certain of our variable rate indebtedness will increase even though the amount borrowed remains the same, and our net income and cash flows, including cash available for servicing our indebtedness, will decrease. In addition, in July 2017, the United Kingdom's Financial Conduct Authority, which regulates the London Interbank Offered Rate (“LIBOR”), announced that it will no longer persuade or compel banks to submit LIBOR rates after 2021. It is unclear whether or not, at that time, LIBOR will cease to exist and a satisfactory replacement rate developed or if new methods of calculating LIBOR will be established such that it continues to exist after 2021. The U.S. Federal Reserve, in conjunction with the Alternative Reference Rates Committee, a steering committee comprised of, among other entities, large U.S. financial institutions, is considering replacing U.S. dollar LIBOR with a new index, the Secured Overnight Financing Rate ("SOFR"), that measures the cost of borrowing cash overnight, backed by U.S. Treasury securities. SOFR is observed and backward-looking, which stands in contrast with LIBOR, which is an estimated forward-looking rate and relies, to some degree, on the expert judgment of submitting panel members. Whether or not SOFR attains market traction as a LIBOR replacement rate remains in question. As such, the future of LIBOR at this time is uncertain. If LIBOR ceases to exist, the level of interest payments on the portion of our indebtedness that bears interest at variable rates would be affected, which may adversely impact the amount of our interest payments under our various debt facilities.

53

Our recently announced restructuring activities will result in substantial charges and may not be successful, and such activities may cause uncertainty regarding the future of our business and may adversely impact employee hiring and retention, our stock price, and our results of operations and financial condition.

We recently announced a workforce reduction plan intended to accelerate our growth strategy and further optimize our cost structure. The plan is expected to result in reductions to our headcount of approximately 9% over the next 9-12 months. We will incur substantial charges to implement this plan, and our restructuring activities may subject us to reputational risks and litigation risks and expenses. As has been the case with our past restructuring plans, we cannot provide any assurance that we will realize the anticipated cost savings and other benefits or that additional restructuring plans will not be required or implemented in the future. In addition, our restructuring plans may have other adverse consequences, such as attrition beyond our planned reduction in workforce, a negative effect on employee morale or on our ability to attract and retain highly skilled employees, which may result in weaknesses in our infrastructure and disruption to our operations, which could lead to a number of negative outcomes such as a negative impact on our ability to comply with legal or regulatory requirements, a loss of business opportunities to competitors, delays in or inability to complete our research and development roadmaps, reduced productivity among remaining employees, and other negative outcomes we cannot foresee at this time, all of which could result in a material, adverse impact on our ability to grow revenue and meet our profitability goals.

54

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

The following table provides information as of September 30, 2020 with respect to the shares of our common stock that we repurchased during the third quarter of 2020.

Period	Total number of shares purchased	Average price paid per share		Total number of shares purchased as part of publicly announced plans or programs	Maximum number of shares that may yet be purchased under the plans or programs (1)
July 1, 2020 to July 31, 2020	—	$	—	—	2,331,801
August 1, 2020 to August 31, 2020	446,502	34.86		446,502	1,885,299
September 1, 2020 to September 30, 2020	—	—		—	1,885,299
Total	446,502	$	34.86	446,502	1,885,299
(1) On April 21, 2010, our Board of Directors authorized a program to repurchase shares of our common stock from time to time, depending on market conditions and other factors. On October 23, 2019, our Board of Directors amended our stock repurchase program to increase the number of shares that may be repurchased by 3,000,000 shares. At September 30, 2020, there were 1,885,299 shares available for repurchase under our repurchase program. This repurchase plan does not have an expiration date.

Item 5. Other Information

None.

55

EXHIBITS
3.1(1)	Certificate of Incorporation, as amended, of Registrant, effective May 14, 2013
3.2(2)	Amended and Restated Bylaws of Registrant
31.1	Certification of Chief Executive Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification of Chief Financial Officer, pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1	Certification of Chief Executive Officer and Chief Financial Officer Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002*
101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document
104	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)
(1)	Incorporated by reference to Exhibit 3.1 filed with the Company's Form 10-K for the fiscal year ended December 31, 2013, filed with the Commission on February 20, 2014
(2)	Incorporated by reference to Exhibit 3.1 filed with the Company's Form 8-K on January 28, 2019
**The exhibits required to be filed pursuant to the requirements of Item 601 of Regulation S-K are set forth in the Exhibit Index list noted above and are incorporated herein by reference. Schedules and exhibits have been omitted pursuant to Item 601(a)(5) of Regulation S-K. A copy of any omitted schedule or exhibit will be furnished to the Securities and Exchange Commission upon request.
*furnished herewith
†	Management Contract or Compensatory Plan or Arrangement

56

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.  

Dated:  November 2, 2020

NATIONAL INSTRUMENTS CORPORATION

By: /s/ Karen Rapp

Karen Rapp

EVP, Chief Financial Officer

(Principal Financial Officer)

໿

57

EX-31.1

EXHIBIT 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I,Eric Starkloff, certify that:

1.I have reviewed this report on Form 10-Qof National Instruments Corporation;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

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

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

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

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

5.The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: November 2, 2020

By:	/s/Eric Starkloff
	Eric Starkloff
	Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Karen Rapp, certify that:

1.I have reviewed this report on Form 10-Q of National Instruments Corporation;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant's other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

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

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

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

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

5.The registrant's other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date:  November 2, 2020

By:	/s/ Karen Rapp
	Karen Rapp
	Chief Financial Officer

EX-32.1

EXHIBIT 32.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER

PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

I, Eric Starkloff, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of National Instruments Corporation on Form 10-Q for the fiscal quarter ended September 30, 2020 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Form 10-Q fairly presents in all material respects the financial condition and results of operations of National Instruments Corporation.

By: /s/ Eric Starkloff

Eric Starkloff

Chief Executive Officer

Date: November 2, 2020

I, Karen Rapp, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the Quarterly Report of National Instruments Corporation on Form 10-Q for the fiscal quarter ended September 30, 2020 fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in such Form 10-Q fairly presents in all material respects the financial condition and results of operations of National Instruments Corporation.

By: /s/ Karen Rapp

Karen Rapp

Chief Financial Officer

Date: November 2, 2020

XML

Cover - shares	9 Months Ended
	Sep. 30, 2020	Oct. 29, 2020
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
Document Transition Report	false
Entity File Number	0-25426
Entity Registrant Name	NATIONAL INSTRUMENTS CORP
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	74-1871327
Entity Address, Address Line One	11500 North MoPac Expressway
Entity Address, City or Town	Austin,
Entity Address, State or Province	TX
Entity Address, Postal Zip Code	78759
City Area Code	512
Local Phone Number	683-0100
Trading Symbol	NATI
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Title of 12(b) Security	Common Stock, $0.01 par value
Entity Common Stock, Shares Outstanding (in shares)		131,245,640
Entity Central Index Key	0000935494
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Amendment Flag	false

XML

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 197,319	$ 194,616
Short-term investments	92,853	237,983
Accounts receivable, net	214,620	248,872
Inventories, net	209,558	200,410
Prepaid expenses and other current assets	72,956	65,477
Total current assets	787,306	947,358
Property and equipment, net	253,073	243,717
Goodwill	487,101	262,242
Intangible assets, net	183,067	84,083
Operating lease right-of-use assets	69,395	70,407
Other long-term assets	63,930	44,082
Total assets	1,843,872	1,651,889
Current liabilities:
Accounts payable and accrued expenses	48,886	52,192
Accrued compensation	53,496	47,732
Deferred revenue - current	116,871	131,445
Operating lease liabilities - current	16,177	13,431
Other taxes payable	41,604	40,607
Debt, current	3,500	0
Other current liabilities	50,259	20,716
Total current liabilities	330,793	306,123
Deferred income taxes	41,514	14,065
Income tax payable - non-current	61,628	69,151
Liability for uncertain tax positions	6,867	6,652
Deferred revenue - non-current	34,210	33,480
Operating lease liabilities - non-current	37,767	40,650
Debt, non-current	84,289	0
Other long-term liabilities	7,606	5,418
Total liabilities	604,674	475,539
Commitments and contingencies
Stockholders' equity:
Preferred stock:  par value $0.01;  5,000,000 shares authorized; none issued and outstanding	0	0
Common stock:  par value $0.01;  360,000,000 shares authorized; 131,245,640 shares and 130,504,535 shares issued and outstanding, respectively	1,312	1,305
Additional paid-in capital	1,012,656	953,578
Retained earnings	247,970	242,537
Accumulated other comprehensive loss	(22,740)	(21,070)
Total stockholders’ equity	1,239,198	1,176,350
Total liabilities and stockholders’ equity	$ 1,843,872	$ 1,651,889

XML

Consolidated Balance Sheets (Parenthetical) - $ / shares	Sep. 30, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Preferred stock, par value per share (in usd per share)	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)	5,000,000	5,000,000
Preferred stock, issued (in shares)	0	0
Preferred stock, outstanding (in shares)	0	0
Common stock, par value per share (in usd per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	360,000,000	360,000,000
Common stock, issued (in shares)	131,245,640	130,504,535
Common stock, outstanding (in shares)	131,245,640	130,504,535

XML

Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net sales:
Total net sales	$ 308,124	$ 340,442	$ 918,834	$ 985,747
Cost of sales:
Total cost of sales	92,263	85,915	261,925	245,756
Gross profit	215,861	254,527	656,909	739,991
Operating expenses:
Sales and marketing	109,774	113,922	330,939	352,340
Research and development	70,802	66,558	206,648	200,981
General and administrative	37,431	35,711	92,980	92,639
Total operating expenses	218,007	216,191	630,567	645,960
Gain on sale of business/asset	0	26,842	159,753	26,842
Operating (loss) income	(2,146)	65,178	186,095	120,873
Other Nonoperating Income (Expense) [Abstract]
Other (expense) income	(2,001)	2,249	(2,584)	5,379
Income before income taxes	(4,147)	67,427	183,511	126,252
Provision for income taxes	475	15,783	44,588	22,697
Net (loss) income	$ (4,622)	$ 51,644	$ 138,923	$ 103,555
Basic (loss) earnings per share (in usd per share)	$ (0.04)	$ 0.39	$ 1.06	$ 0.79
Weighted average shares outstanding - basic (in shares)	131,419	131,385	131,017	131,896
Diluted (loss) earnings per share (in usd per share)	$ (0.04)	$ 0.39	$ 1.06	$ 0.78
Weighted average shares outstanding - diluted (in shares)	131,419	131,889	131,671	132,890
Dividends declared per share (in usd per share)	$ 0.26	$ 0.25	$ 0.78	$ 0.75
Product
Net sales:
Total net sales	$ 269,651	$ 305,247	$ 809,890	$ 882,747
Cost of sales:
Total cost of sales	88,370	84,127	254,236	240,056
Software maintenance
Net sales:
Total net sales	38,473	35,195	108,944	103,000
Cost of sales:
Total cost of sales	$ 3,893	$ 1,788	$ 7,689	$ 5,700

XML

Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (4,622)	$ 51,644	$ 138,923	$ 103,555
Other comprehensive income (loss), before tax and net of reclassification adjustments:
Foreign currency translation adjustment	8,483	(8,500)	6,507	(9,303)
Unrealized (loss) gain on securities available-for-sale	(163)	(419)	(317)	1,494
Unrealized (loss) gain on derivative instruments	(9,530)	1,627	(10,128)	1,359
Other comprehensive (loss) income, before tax	(1,210)	(7,292)	(3,938)	(6,450)
Tax (benefit) expense related to items of other comprehensive income	(2,335)	414	(2,268)	355
Other comprehensive income (loss), net of tax	1,125	(7,706)	(1,670)	(6,805)
Comprehensive (loss) income	$ (3,497)	$ 43,938	$ 137,253	$ 96,750

XML

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flow from operating activities:
Net income	$ 138,923	$ 103,555
Adjustments to reconcile net income to net cash provided by operating activities:
Disposal gain on sale of business/asset	(159,753)	(26,842)
Depreciation and amortization	61,228	54,546
Stock-based compensation	42,556	38,054
Deferred income taxes	(932)	(1,461)
Changes in operating assets and liabilities	26,762	(18,507)
Net cash provided by operating activities	108,784	149,345
Cash flow from investing activities:
Acquisitions, net of cash acquired	(334,981)	0
Capital expenditures	(36,573)	(47,183)
Proceeds from sale of assets/business, net of cash divested	160,266	32,492
Capitalization of internally developed software	(2,806)	(7,179)
Additions to other intangibles	(1,045)	(1,132)
Acquisitions of equity-method investments	(7,502)	(13,670)
Purchases of short-term investments	(206,330)	(141,074)
Sales and maturities of short-term investments	351,597	204,046
Net cash (used in) provided by investing activities	(77,374)	26,300
Cash flow from financing activities:
Proceeds from revolving line of credit	20,000	0
Proceeds from term loan	70,000	0
Payments on term loan	(875)	0
Debt issuance costs	(1,480)	0
Proceeds from issuance of common stock	24,971	25,823
Repurchase of common stock	(39,244)	(137,171)
Dividends paid	(102,396)	(99,083)
Net cash used in financing activities	(29,024)	(210,431)
Effect of exchange rate changes on cash	317	(1,827)
Net change in cash and cash equivalents	2,703	(36,613)
Cash and cash equivalents at beginning of period	194,616	259,386
Cash and cash equivalents at end of period	$ 197,319	$ 222,773

XML

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands		Total	Common Stock	Additional-Paid in Capital	Retained Earnings	Accumulated Other Comprehensive Income/(Loss)
Beginning Balance (in shares) at Dec. 31, 2018			132,655,941
Beginning Balance at Dec. 31, 2018		$ 1,238,358	$ 1,327	$ 897,544	$ 356,418	$ (16,931)
Net income		103,555			103,555
Other comprehensive income (loss), net of tax		(6,805)				(6,805)
Issuance of common stock under employee plans (in shares)			1,608,832
Issuance of common stock under employee plans, including tax benefits		25,823	$ 16	25,807
Stock-based compensation		37,484		37,484
Repurchase of common stock (in shares)			(3,205,676)
Repurchase of common stock		(137,171)	$ (32)	(21,714)	(115,425)
Dividends paid	[1]	(99,083)			(99,083)
Ending Balance (in shares) at Sep. 30, 2019			131,059,097
Ending Balance at Sep. 30, 2019		1,162,161	$ 1,311	939,121	245,465	(23,736)
Beginning Balance (in shares) at Jun. 30, 2019			131,884,775
Beginning Balance at Jun. 30, 2019		1,174,574	$ 1,319	924,801	264,484	(16,030)
Net income		51,644			51,644
Other comprehensive income (loss), net of tax		(7,706)				(7,706)
Issuance of common stock under employee plans (in shares)			230,400
Issuance of common stock under employee plans, including tax benefits		8,178	$ 3	8,175
Stock-based compensation		13,284		13,284
Repurchase of common stock (in shares)			(1,056,078)
Repurchase of common stock		(44,797)	$ (11)	(7,139)	(37,647)
Dividends paid	[1]	(33,016)			(33,016)
Ending Balance (in shares) at Sep. 30, 2019			131,059,097
Ending Balance at Sep. 30, 2019		$ 1,162,161	$ 1,311	939,121	245,465	(23,736)
Beginning Balance (in shares) at Dec. 31, 2019		130,504,535	130,504,535
Beginning Balance at Dec. 31, 2019		$ 1,176,350	$ 1,305	953,578	242,537	(21,070)
Net income		138,923			138,923
Other comprehensive income (loss), net of tax		(1,670)				(1,670)
Issuance of common stock under employee plans (in shares)			1,855,806
Issuance of common stock under employee plans, including tax benefits		24,971	$ 18	24,953
Stock-based compensation		42,264		42,264
Repurchase of common stock (in shares)			(1,114,701)
Repurchase of common stock		(39,244)	$ (11)	(8,139)	(31,094)
Dividends paid	[1]	$ (102,396)			(102,396)
Ending Balance (in shares) at Sep. 30, 2020		131,245,640	131,245,640
Ending Balance at Sep. 30, 2020		$ 1,239,198	$ 1,312	1,012,656	247,970	(22,740)
Beginning Balance (in shares) at Jun. 30, 2020			131,436,108
Beginning Balance at Jun. 30, 2020		1,269,639	$ 1,314	993,058	299,132	(23,865)
Net income		(4,622)			(4,622)
Other comprehensive income (loss), net of tax		1,125				1,125
Issuance of common stock under employee plans (in shares)			256,034
Issuance of common stock under employee plans, including tax benefits		7,717	$ 2	7,715
Stock-based compensation		15,142		15,142
Repurchase of common stock (in shares)			(446,502)
Repurchase of common stock		(15,563)	$ (4)	(3,259)	(12,300)
Dividends paid	[1]	$ (34,240)			(34,240)
Ending Balance (in shares) at Sep. 30, 2020		131,245,640	131,245,640
Ending Balance at Sep. 30, 2020		$ 1,239,198	$ 1,312	$ 1,012,656	$ 247,970	$ (22,740)

[1] Cash dividends declared per share of common stock were $0.25 for the three months ended September 30, 2019, and $0.75 for the nine months ended September 30, 2019.

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Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Stockholders' Equity [Abstract]
Dividends declared per share (in usd per share)	$ 0.26	$ 0.25	$ 0.78	$ 0.75

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Basis of presentation

9 Months Ended

Sep. 30, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of presentation

Basis of presentation  

The accompanying unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto for the fiscal year ended December 31, 2019, included in our Annual Report on Form 10-K filed with the Securities and Exchange Commission ("SEC") on February 20, 2020 (the "Form 10-K"). In our opinion, the accompanying consolidated financial statements reflect all adjustments (consisting only of normal recurring items) considered necessary to present fairly our financial position at September 30, 2020 and December 31, 2019, the results of our operations and comprehensive income for three and nine months ended September 30, 2020 and 2019, our cash flows for the nine months ended September 30, 2020 and 2019 and our statement of stockholders' equity for the three and nine months ended September 30, 2020 and 2019. Our operating results for the three and nine months ended September 30, 2020 are not necessarily indicative of the results that may be expected for the year ending December 31, 2020. These financial statements have been prepared in accordance with accounting principles generally accepted in the United States.

Reclassifications

As further discussed below, certain prior period amounts have been reclassified to conform to the current period presentation. The reclassifications had no impact on our previously reported net income or cash flows:

•Before the second quarter of 2020, we included net sales attributable to our operations in India within the EMEIA region in Note 2 - Revenue of Notes to Consolidated Financial Statements. In the second quarter of 2020, we began including these amounts within the APAC (Australia, India, New Zealand, Southeast Asia, China, South Korea and Japan) geographic region, to reflect recent changes within our organizational structure. We have recast historical comparative information to conform to the September 30, 2020 presentation. Refer to Note 2 - Revenue of Notes to Consolidated Financial Statements for our revenue disaggregated by geographic region which now include the Americas (United States, Canada and Latin America), EMEA (Europe, Middle East, and Africa) and APAC.

•Before the second quarter of 2020, we presented “Interest income”, "Net foreign exchange gain (loss)", and "Other income (loss)" separately on the consolidated statements of income. In the second quarter of 2020, we began presenting these amounts within “Other (expense) income” in the consolidated statements of income for all periods presented. Refer to "Other (expense) income" in Note 1 - Basis of Presentation of Notes to Consolidated Financial Statements for additional information on the amounts that comprise "Other (expense) income".

Recently Adopted Accounting Pronouncements

Current Expected Credit Losses ("CECL")

In June 2016, the Financial Accounting Standards Board ("FASB") issued ASU No. 2016-13, "Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments." The ASU replaces the incurred-loss impairment methodology and requires immediate recognition of estimated credit losses expected to occur for most financial assets, including trade receivables. Credit losses on available-for-sale debt securities with unrealized losses will be recognized as allowances for credit losses limited to the amount by which fair value is below amortized cost. We adopted the new standard on January 1, 2020 and the impact of the adoption was not material to our consolidated financial statements as credit losses are not expected to be significant based on historical collection trends, the financial condition of payment partners, and external market factors. We will continue to actively monitor the impact of the recent coronavirus (COVID-19) pandemic on expected credit losses.

Implementation Costs Incurred in a Cloud Computing Arrangement

In August 2018, the FASB issued ASU 2018-15, “Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract,” which clarifies the accounting for implementation costs in cloud computing arrangements. The new standard aligns the treatment of implementation costs incurred by customers in cloud computing arrangements that are service contracts with the treatment of similar costs incurred to develop or obtain internal-use software. Under the new standard, implementation costs are deferred and presented in the same financial statement caption on the condensed consolidated balance sheet as a prepayment of related arrangement fees. The deferred costs are recognized over the term of the arrangement in the same financial statement caption in the condensed consolidated income statement as the related fees of the arrangement. We adopted the new standard on January 1, 2020. The new standard did not have a material impact on our consolidated financial statements and related disclosures.

Fair Value Measurements

In August 2018, the FASB issued ASU 2018-13, “Disclosure Framework — Changes to the Disclosure Requirements for Fair Value Measurement,” which modifies the disclosure requirements on fair value measurements. We adopted the new standard on January 1, 2020. The new standard did not have a material impact on our consolidated financial statements and related disclosures.

Income Taxes

In December 2019, the FASB issued ASU 2019-12, “Income Taxes — Simplifying the Accounting for Income Taxes (Topic 740),” which simplifies the accounting for income taxes by removing certain exceptions to the general principles in Topic 740. The amendments in this ASU also improve consistency and simplify other areas of Topic 740 by clarifying and amending existing guidance. The amendments in this ASU will be applied using different approaches depending on what the specific amendment relates to and, for public entities, are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. An entity is permitted to early adopt the guidance, and we early adopted ASU 2019-12 as of January 1, 2020. The adoption did not have a material impact on our consolidated financial statements and related disclosures.

Disclosures about Acquired and Disposed Businesses

In May 2020, the SEC adopted Release No. 33-10786 "Amendments to Financial Disclosures about Acquired and Disposed Businesses" ("Release No. 33-10786") which includes amendments to certain of its rules and forms related to the disclosure of financial information regarding acquired or disposed businesses. Among other changes, the amendments impact SEC rules relating to (1) the definition of “significant” subsidiaries, (2) requirements to provide financial statements for “significant” acquisitions, and (3) revisions to the formulation and usage of pro forma financial information. Release No. 33-10786 is effective on January 1, 2021, however, voluntary early adoption is permitted as long as all amendments are adopted in their entirety. We elected to early adopt all provisions of Release No. 33-10786 during the second quarter of 2020.

Summary of Significant Accounting Policies

As discussed above, we adopted the new expected credit loss standard as of January 1, 2020. There were no other significant changes in our accounting policies during the three and nine months ended September 30, 2020 compared to the significant accounting policies described in our Form 10-K.

Divestitures

AWR

On January 15, 2020, we completed the sale of our AWR Corporation subsidiary ("AWR") for approximately $161 million. We recognized a gain of approximately $160 million on the sale. The gain is included within "Gain on sale of business/asset" in the consolidated statements of income, which also included approximately $1 million of transaction costs.

The divestiture of AWR resulted in the derecognition of the following assets and liabilities (in thousands):

Cash	$	1,027
Accounts receivable, net	7,233
Prepaid and other current assets	283
Goodwill	7,221
Other non-current assets	556
Total Assets	16,320
Deferred revenue	15,296
Other current liabilities	940
Cumulative translation adjustment	(660)
Total liabilities and stockholders' equity	15,576
Total assets divested, net (including cash)	$	744

Other (Expense) Income

Other (expense) income, net consisted of the following amounts (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	(Unaudited)				(Unaudited)
	2020		2019		2020		2019
Interest income	$	414	$	1,930	$	3,724	$	6,187
Interest expense	(973)		—		(1,115)		—
Loss from equity-method investments	(627)		(239)		(2,559)		(406)
Net foreign exchange loss	(676)		(378)		(2,019)		(1,623)
Other	(139)		936		(615)		1,221
Other (expense) income, net	$	(2,001)	$	2,249	$	(2,584)	$	5,379

Earnings Per Share

Basic earnings per share (“EPS”) is computed by dividing net income by the weighted average number of common shares outstanding during each period. Diluted EPS is computed by dividing net income by the weighted average number of common shares and common share equivalents outstanding (if dilutive) during each period. The number of common share equivalents, which includes restricted stock units ("RSUs"), is computed using the treasury stock method. The reconciliation of the denominators used to calculate basic EPS and diluted EPS for the three and nine months ended September 30, 2020 and 2019, are as follows (in thousands):

	Three Months Ended September 30,		Nine Months Ended September 30,
	(Unaudited)		(Unaudited)
	2020	2019	2020	2019
Weighted average shares outstanding-basic	131,419	131,385	131,017	131,896
Plus: Common share equivalents
RSUs	—	504	654	994
Weighted average shares outstanding-diluted	131,419	131,889	131,671	132,890

Stock awards to acquire 3,490,700 shares and 1,611,000 shares for the three months ended September 30, 2020 and 2019, respectively, and 276,000 shares and 568,000 shares for the nine months ended September 30, 2020 and 2019, respectively, were excluded in the computations of diluted EPS because the effect of including the stock awards would have been anti-dilutive.

Other Current Liabilities

Other current liabilities on our consolidated balance sheet includes the following amounts (in thousands):

	As of September 30, 2020		As of December 31,
	(unaudited)		2019
Income taxes payable - current	$	23,487	$	6,791
Other	26,772		13,925
Total	$	50,259	$	20,716

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Revenue

9 Months Ended

Sep. 30, 2020

Revenue from Contract with Customer [Abstract]

Revenue

Revenue

Revenue Recognition

Revenue is recognized upon transfer of control of the promised products or services to customers in an amount that reflects the consideration we expect to receive in exchange for those products or services. We enter into contracts that can include various combinations of our products or services, which are generally capable of being distinct and accounted for as separate performance obligations. Revenue is recognized net of allowances for returns and any taxes collected from customers, which are subsequently remitted to governmental authorities.

Disaggregation of Revenues

We disaggregate revenue from contracts with customers based on the timing of transfer of goods or services to customers (point-in-time or over time) and geographic region based on the billing location of the customer. Before the second quarter of 2020, we included net sales attributable to our operations in India within the EMEIA region. In the second quarter of 2020, we began including these amounts within the APAC geographic region, to reflect recent changes within our organizational structure. We have recast historical comparative information to conform to the September 30, 2020 presentation. The geographic regions are now presented as the Americas, EMEA and APAC to reflect this change.

Total net sales based on the disaggregation criteria described above are as follows:

			Three Months Ended September 30,
(In thousands)			(Unaudited)
	2020						2019
Net sales:	Point-in-Time(1)		Over Time		Total		Point-in-Time(1)		Over Time		Total
Americas	$	107,808	$	19,241	$	127,049	$	119,895	$	23,222	$	143,117
EMEA	57,988		20,551		78,539		70,076		19,662		89,738
APAC	92,050		10,486		102,536		98,161		9,426		107,587
Total net sales(1)	$	257,846	$	50,278	$	308,124	$	288,132	$	52,310	$	340,442
(1) Net sales contains hedging gains and losses, which do not represent revenues recognized from customers. See Note - 5 Derivatives instruments and hedging activities of Notes to Consolidated Financial Statements for more information on the impact of our hedging activities on our results of operations.

			Nine Months Ended September 30,
(In thousands)			(Unaudited)
	2020						2019
Net sales:	Point-in-Time(1)		Over Time		Total		Point-in-Time(1)		Over Time		Total
Americas	$	316,220	$	57,554	$	373,774	$	325,349	$	69,337	$	394,686
EMEA	181,330		58,594		239,924		216,644		57,411		274,055
APAC	274,341		30,795		305,136		290,140		26,866		317,006
Total net sales(1)	$	771,891	$	146,943	$	918,834	$	832,133	$	153,614	$	985,747
(1) Net sales contains hedging gains and losses, which do not represent revenues recognized from customers. See Note - 5 Derivatives instruments and hedging activities of Notes to Consolidated Financial Statements for more information on the impact of our hedging activities on our results of operations.

Information about Contract Balances

Amounts collected in advance of services being provided are accounted for as deferred revenue. Nearly all of our deferred revenue balance is related to extended hardware and software maintenance contracts. Payment terms and conditions vary by contract type, although payment is typically due within 30 to 90 days of contract inception. In instances where the timing of revenue recognition differs from the timing of invoicing, we have determined our contracts generally do not include a significant financing component. The primary purpose of our invoicing terms is to provide customers with simplified and predictable ways of purchasing our products and services, not to receive financing from our customers, such as invoicing at the beginning of a subscription term with a portion of the revenue recognized ratably over the contract period, or to provide customers with financing, such as multi-year on-premises licenses that are invoiced annually with revenue recognized upfront.

Changes in deferred revenue, current and non-current, during the nine months ended September 30, 2020 were as follows:

	Amount
	(In thousands)
Balance as of December 31, 2019	$	164,925
Deferral of revenue billed in current period, net of recognition	95,934
Recognition of revenue deferred in prior periods	(103,274)
Acquisitions/Divestitures	(7,955)
Foreign currency translation impact	1,451
Balance as of September 30, 2020 (unaudited)	$	151,081

For the nine months ended September 30, 2020, revenue recognized from performance obligations satisfied in prior periods (for example, due to changes in transaction price) was not material. Amounts recognized as revenue in excess of amounts billed are recorded as unbilled receivables. Unbilled receivables which are anticipated to be invoiced in the next twelve months are included in "Other current assets" and "Other long-term assets" on the consolidated balance sheet. Based on the nature of our contracts with customers, we do not typically recognize unbilled receivables related to revenues recognized in excess of amounts billed. For the nine months ended September 30, 2020, amounts recognized related to unbilled receivables were not material.

Unsatisfied Performance Obligations

Revenue expected to be recognized in any future period related to remaining performance obligations, excluding revenue pertaining to contracts that have an original expected duration of one year or less, and excluding contracts where revenue is recognized as invoiced, was approximately $84 million as of September 30, 2020. Since we typically invoice customers at contract inception, this amount is included in our current and non-current deferred revenue balances. As of September 30, 2020, we expect to recognize approximately 15% of the revenue related to these unsatisfied performance obligations during the remainder of 2020, 43% during 2021, and 42% thereafter.

Assets Recognized from the Costs to Obtain a Contract with a CustomerWe recognize an asset for the incremental costs of obtaining a contract with a customer if we expect the benefit of those costs to be longer than one year. We have determined that certain sales incentive programs meet the requirements to be capitalized. Capitalized incremental costs related to initial contracts and renewals are amortized over the same period because the commissions paid on both the initial contract and renewals are commensurate with one another. Total capitalized costs to obtain a contract were not material during the periods presented and are included in other long-term assets on our consolidated balance sheets.

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Short-term investments

9 Months Ended

Sep. 30, 2020

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

Short-term investments

Short-term investments  

The following tables summarize unrealized gains and losses related to our short-term investments designated as available-for-sale debt securities:

	As of September 30, 2020
(In thousands)	(Unaudited)
			Gross		Gross
	Adjusted Cost		Unrealized Gain		Unrealized Loss		Fair Value
Corporate bonds	$	92,610	$	245	$	(2)	$	92,853
Total Short-term investments	$	92,610	$	245	$	(2)	$	92,853

(In thousands)	As of December 31, 2019
			Gross		Gross
	Adjusted Cost		Unrealized Gain		Unrealized Loss		Fair Value
Corporate bonds	$	237,423	$	628	$	(68)	$	237,983
Total Short-term investments	$	237,423	$	628	$	(68)	$	237,983

The following tables summarize the contractual maturities of our short-term investments designated as available-for-sale debt securities:

	As of September 30, 2020
(In thousands)	(Unaudited)
	Adjusted Cost		Fair Value
Due in less than 1 year	$	88,194	$	88,438
Due in 1 to 5 years	4,416		4,415
Total available-for-sale debt securities	$	92,610	$	92,853
Due in less than 1 year	Adjusted Cost		Fair Value
Corporate bonds	$	88,194	$	88,438
Total available-for-sale debt securities	$	88,194	$	88,438
Due in 1 to 5 years	Adjusted Cost		Fair Value
Corporate bonds	$	4,416	$	4,415
Total available-for-sale debt securities	$	4,416	$	4,415

Equity-Method Investments

The carrying value of our equity method investments was $20 million as of September 30, 2020. Our proportionate share of the income from equity-method investments is included within "Other (expense) income". Refer to Note 1 - Basis of Presentation for additional information on these amounts for three and nine months ended September 30, 2020 and 2019.

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Fair value measurements

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Fair value measurements

Fair value measurements 

We define fair value to be the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. When determining the fair value measurements for assets and liabilities required or permitted to be recorded at fair value, we consider the principal or most advantageous market that market participants may use when pricing the asset or liability.   

We follow a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. Fair value measurement is determined based on the lowest level input that is significant to the fair value measurement. The three values of the fair value hierarchy are the following:   

Level 1 – Quoted prices in active markets for identical assets or liabilities   

Level 2 – Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly   

Level 3 – Inputs that are not based on observable market data   

Assets and liabilities measured at fair value on a recurring basis are summarized below:

	Fair Value Measurements at Reporting Date Using
(In thousands)	(Unaudited)
Description	September 30, 2020		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash and cash equivalents available for sale:
Money Market Funds	$	82,730	$	82,730	$	—	$	—
Short-term investments available for sale:
Corporate notes and bonds	92,853		—		92,853		—
Derivatives	5,363		—		5,363		—
Total Assets	$	180,946	$	82,730	$	98,216	$	—
Liabilities
Derivatives	$	(10,777)	$	—	$	(10,777)	$	—
Total Liabilities	$	(10,777)	$	—	$	(10,777)	$	—

(In thousands)	Fair Value Measurements at Reporting Date Using
Description	December 31, 2019		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash and cash equivalents available for sale:
Money Market Funds	$	87,397	$	87,397	$	—	$	—
Corporate notes and bonds	9,962		—		9,962		—
Short-term investments available for sale:
Corporate bonds	237,983		—		237,983		—
Derivatives	8,209		—		8,209		—
Total Assets	$	343,551	$	87,397	$	256,154	$	—
Liabilities
Derivatives	$	(2,872)	$	—	$	(2,872)	$	—
Total Liabilities	$	(2,872)	$	—	$	(2,872)	$	—

We value our available-for-sale short-term investments based on pricing from third party pricing vendors, who may use quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value. We classify all of our fixed income available-for-sale securities as having Level 2 inputs. The valuation techniques used to measure the fair value of our financial instruments having Level 2 inputs were derived from non-binding market consensus prices that are corroborated by observable market data, quoted market prices for similar instruments, or pricing models, such as discounted cash flow techniques. We believe all of these sources reflect the credit risk associated with each of our available-for-sale short-term investments. Short-term investments available-for-sale consists of debt securities issued by states of the U.S. and political subdivisions of the U.S., corporate debt securities and debt securities issued by U.S. government organizations and agencies. All of our short-term investments available-for-sale have contractual maturities of less than 60 months.  

Derivatives include foreign currency forward contracts. Our foreign currency forward contracts are valued using an income approach (Level 2) based on the spot rate less the contract rate multiplied by the notional amount. We consider counterparty credit risk in the valuation of our derivatives. However, counterparty credit risk did not impact the valuation of our derivatives during the nine months ended September 30, 2020. There were no transfers in or out of Level 1 or Level 2 during the nine months ended September 30, 2020.  

As of September 30, 2020, our short-term investments did not include sovereign debt from any country other than the United States. The majority of our short-term investments that are located outside of the U.S. are denominated in the U.S. dollar with the exception of $5 million U.S. dollar equivalent of corporate bonds that are denominated in Euro.

We did not have any items that were measured at fair value on a nonrecurring basis at September 30, 2020 and December 31, 2019. The carrying value of net accounts receivable, accounts payable, and long-term debt contained in the consolidated balance sheets approximates fair value.

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Derivative instruments and hedging activities

9 Months Ended

Sep. 30, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative instruments and hedging activities

Derivative instruments and hedging activities  

We recognize all of our derivative instruments as either assets or liabilities in our statement of financial position at fair value. The accounting for changes in the fair value (i.e., gains or losses) of a derivative instrument depends on whether it has been designated and qualifies as part of a hedging relationship and further, on the type of hedging relationship. For those derivative instruments that are designated and qualify as hedging instruments, we designate the hedging instrument, based upon the exposure being hedged, as a fair value hedge, cash flow hedge, or a hedge of a net investment in a foreign operation.

We have operations in approximately 45 countries. Sales outside of the Americas accounted for approximately 59% and 58% of our net sales during the three months ended September 30, 2020 and 2019, and approximately 59% and 60% the nine months ended September 30, 2020 and 2019, respectively. Our activities expose us to a variety of market risks, including the effects of changes in foreign currency exchange rates. These financial risks are monitored and managed by us as an integral part of our overall risk management program.   

We maintain a foreign currency risk management strategy that uses derivative instruments (foreign currency forward contracts) to help protect our earnings and cash flows from fluctuations caused by the volatility in currency exchange rates. Movements in foreign currency exchange rates pose a risk to our operations and competitive position, in that exchange rate changes may affect our profitability and cash flow, and the business or pricing strategies of our non-U.S. based competitors.

The vast majority of our foreign sales are denominated in the customers’ local currency. We purchase foreign currency forward contracts as hedges of forecasted sales that are denominated in foreign currencies and as hedges of foreign currency denominated financial assets or liabilities. These contracts are entered into to help protect against the risk that the eventual dollar-net-cash inflows resulting from such sales or firm commitments will be adversely affected by changes in exchange rates. We also purchase foreign currency forward contracts as hedges of forecasted expenses that are denominated in foreign currencies. These contracts are entered into to help protect against the risk that the eventual dollar-net-cash outflows resulting from foreign currency operating and cost of sales expenses will be adversely affected by changes in exchange rates.

We designate foreign currency forward contracts as cash flow hedges of forecasted net sales or forecasted expenses. In addition, we hedge our foreign currency denominated balance sheet exposures using foreign currency forward contracts that are not designated as hedging instruments. None of our derivative instruments contain a credit-risk-related contingent feature.

 Cash flow hedges  

To help protect against the reduction in value caused by a fluctuation in foreign currency exchange rates of forecasted foreign currency cash flows resulting from international sales over the next one to three years, we have instituted a foreign currency cash flow hedging program. We hedge portions of our forecasted net sales and forecasted expenses denominated in foreign currencies with forward contracts. For forward contracts, when the dollar strengthens significantly against the foreign currencies, the change in the present value of future foreign currency cash flows may be offset by the change in the fair value of the forward contracts designated as hedges. We purchase foreign currency forward contracts for up to 100% of our forecasted exposures in selected currencies (primarily in Euro, Japanese yen, Hungarian forint, British pound, Malaysian ringgit, Korean won and Chinese yuan) and limit the duration of these contracts to 40 months or less.  

For derivative instruments that are designated and qualify as a cash flow hedge, the gain or loss on the derivative is reported as a component of accumulated other comprehensive income ("OCI") and reclassified into earnings in the same line item (net sales, operating expenses, or cost of sales) associated with the forecasted transaction and in the same period or periods during which the hedged transaction affects earnings. Hedge effectiveness of foreign currency forwards designated as cash flow hedges are measured by comparing the hedging instrument’s cumulative change in fair value from inception to maturity to the forecasted transaction’s terminal value.

We held forward contracts designated as cash flow hedges with the following notional amounts:

(In thousands)	US Dollar Equivalent
	As of September 30, 2020		As of December 31,
	(Unaudited)		2019
British pound	$	23,251	$	13,988
Chinese yuan	57,943		32,970
Euro	209,385		130,122
Hungarian forint	89,962		95,228
Japanese yen	83,503		53,527
Korean won	26,918		24,728
Malaysian ringgit	41,681		32,725
Total forward contracts notional amount	$	532,643	$	383,288

The contracts in the foregoing table had contractual maturities of 36 months or less at September 30, 2020 and December 31, 2019.  

At September 30, 2020, we expect to reclassify $0.6 million of losses on derivative instruments from accumulated OCI to net sales during the next twelve months when the hedged international sales occur, $1.4 million of losses on derivative instruments from accumulated OCI to cost of sales during the next twelve months when the hedged cost of sales are incurred and $1.0 million of losses on derivative instruments from accumulated OCI to operating expenses during the next twelve months when the hedged operating expenses occur. Expected amounts are based on derivative valuations at September 30, 2020. Actual results may vary materially as a result of changes in the corresponding exchange rates subsequent to this date.  

The gains and losses recognized in earnings due to hedge ineffectiveness were not material for each of the nine months ended September 30, 2020 and 2019 and are included as a component of net income under the line item “Other (expense) income.”

Other Derivatives  

Other derivatives not designated as hedging instruments consist primarily of foreign currency forward contracts that we use to hedge our foreign denominated net receivable or net payable positions to help protect against the change in value caused by a fluctuation in foreign currency exchange rates. We typically attempt to hedge up to 90% of our outstanding foreign denominated net receivables or net payables and typically limit the duration of these foreign currency forward contracts to approximately 90 days or less. The gain or loss on the derivatives as well as the offsetting gain or loss on the hedge item attributable to the hedged risk is recognized in current earnings under the line item “Other (expense) income.” As of September 30, 2020 and December 31, 2019, we held foreign currency forward contracts that were not designated as hedging instruments with a notional amount of $87 million and $41 million, respectively.   

The following tables present the fair value of derivative instruments on our Consolidated Balance Sheets at September 30, 2020 and December 31, 2019, respectively.   

	Asset Derivatives
	September 30, 2020			December 31, 2019
(In thousands)	(Unaudited)
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Derivatives designated as hedging instruments
Foreign exchange contracts - ST forwards	Prepaid expenses and other current assets	$	2,314	Prepaid expenses and other current assets	$	7,039
Foreign exchange contracts - LT forwards	Other long-term assets	2,639		Other long-term assets	970
Total derivatives designated as hedging instruments		$	4,953		$	8,009
Derivatives not designated as hedging instruments
Foreign exchange contracts - ST forwards	Prepaid expenses and other current assets	$	411	Prepaid expenses and other current assets	$	200
Total derivatives not designated as hedging instruments		$	411		$	200
Total derivatives		$	5,364		$	8,209

	Liability Derivatives
	September 30, 2020			December 31, 2019
(In thousands)	(Unaudited)
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Derivatives designated as hedging instruments
Foreign exchange contracts - ST forwards	Other current liabilities	$	(5,305)	Other current liabilities	$	(2,089)
Foreign exchange contracts - LT forwards	Other long-term liabilities	(4,230)		Other long-term liabilities	(351)
Total derivatives designated as hedging instruments		$	(9,535)		$	(2,440)
Derivatives not designated as hedging instruments
Foreign exchange contracts - ST forwards	Other current liabilities	$	(1,241)	Other current liabilities	$	(432)
Total derivatives not designated as hedging instruments		$	(1,241)		$	(432)
Total derivatives		$	(10,776)		$	(2,872)

The following tables present the effect of derivative instruments on our Consolidated Statements of Income for the three months ended September 30, 2020 and 2019, respectively:

September 30, 2020
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship	Gain or (Loss) Recognized in OCI on Derivative		Location of Gain or (Loss) Reclassified from Accumulated OCI into Income	Gain or (Loss) Reclassified from Accumulated OCI into Income
Foreign exchange contracts - forwards	$	(12,524)	Net sales	$	334
Foreign exchange contracts - forwards	1,849		Cost of sales	(448)
Foreign exchange contracts - forwards	1,144		Operating expenses	(266)
Total	$	(9,531)		$	(380)

September 30, 2019
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship	Gain or (Loss) Recognized in OCI on Derivative		Location of Gain or (Loss) Reclassified from Accumulated OCI into Income	Gain or (Loss) Reclassified from Accumulated OCI into Income
Foreign exchange contracts - forwards	$	6,736	Net sales	$	3,291
Foreign exchange contracts - forwards	(2,946)		Cost of sales	(176)
Foreign exchange contracts - forwards	(2,163)		Operating expenses	(112)
Total	$	1,627		$	3,003

(In thousands)
Derivatives not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income	Amount of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income
		September 30, 2020		September 30, 2019
		(Unaudited)		(Unaudited)
Foreign exchange contracts - forwards	Other expense (income)	$	(267)	287
Total		$	(267)	$	287

The following tables present the effect of derivative instruments on our Consolidated Statements of Income for the nine months ended September 30, 2020 and 2019, respectively:

September 30, 2020
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship	Gain or (Loss) Recognized in OCI on Derivative		Location of Gain or (Loss) Reclassified from Accumulated OCI into Income	Gain or (Loss) Reclassified from Accumulated OCI into Income
Foreign exchange contracts - forwards	$	(6,800)	Net sales	$	5,594
Foreign exchange contracts - forwards	(1,898)		Cost of sales	(1,817)
Foreign exchange contracts - forwards	(1,430)		Operating expenses	(1,348)
Total	(10,128)			$	2,429

September 30, 2019
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship	Gain or (Loss) Recognized in OCI on Derivative		Location of Gain or (Loss) Reclassified from Accumulated OCI into Income	Gain or (Loss) Reclassified from Accumulated OCI into Income
Foreign exchange contracts - forwards	$	7,186	Net sales	$	7,687
Foreign exchange contracts - forwards	(3,386)		Cost of sales	(217)
Foreign exchange contracts - forwards	(2,441)		Operating expenses	(158)
Total	$	1,359		$	7,312

(In thousands)
Derivatives not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income	Amount of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income
		September 30, 2020		September 30, 2019
		(Unaudited)		(Unaudited)
Foreign exchange contracts - forwards	Other income (expense)	$	(163)	(82)
Total		$	(163)	$	(82)

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Inventories, net

9 Months Ended

Sep. 30, 2020

Inventory Disclosure [Abstract]

Inventories, net

Inventories, net 

Inventories, net consist of the following: 

	September 30, 2020		December 31,
(In thousands)	(Unaudited)		2019
Raw materials	$	110,773	$	110,078
Work-in-process	12,235		10,613
Finished goods	86,550		79,719
Total	$	209,558	$	200,410

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Intangible assets and goodwill, net

9 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible assets and goodwill, net

Intangible assets and goodwill, net  

Intangible assets at September 30, 2020 and December 31, 2019 are as follows:

	September 30, 2020
(In thousands)	(Unaudited)						December 31, 2019
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Capitalized software development costs	$	123,483	$	(86,096)	$	37,387	$	132,789	$	(76,910)	$	55,879
Acquired technology	105,008		(14,726)		90,282		91,900		(87,917)		3,983
Patents	36,531		(26,008)		10,523		35,609		(23,993)		11,616
Other	74,671		(29,796)		44,875		44,490		(31,885)		12,605
Total	$	339,693	$	(156,626)	$	183,067	$	304,788	$	(220,705)	$	84,083

Software development costs capitalized for the three months ended September 30, 2020 and 2019 were $(0.2) million and $2.8 million, respectively, and related amortization expense was $6.9 million and $7.1 million, respectively. For the nine months ended September 30, 2020 and 2019, capitalized software development costs were $3.1 million and $7.5 million, respectively, and related amortization expense was $21.6 million and $20.9 million, respectively. Capitalized software development costs for the three months ended September 30, 2020 and 2019 included costs related to stock-based compensation of $0.1 million and $0.2 million, respectively. For each of the nine months ended September 30, 2020 and 2019, capitalized software development costs included costs related to stock-based compensation of $0.3 million. The related amounts in the table above are net of fully amortized assets.

Amortization of capitalized software development costs is computed on an individual product basis for those products available for market and is recognized based on the product’s estimated economic life, generally three to six years. Acquired technology and other intangible assets are amortized over their useful lives, which range from three to eight years. Patents are amortized using the straight-line method over their estimated period of benefit, generally 10 to 17 years. Total intangible assets amortization expenses were $14.2 million and $9.2 million for the three months ended September 30, 2020 and 2019, respectively, and $32.9 million and $27.3 million for the nine months ended September 30, 2020 and 2019, respectively.

Goodwill

The carrying amount of goodwill as of September 30, 2020, was as follows:

	Amount
	(In thousands)
Balance as of December 31, 2019	$	262,242
Acquisition	227,280
Foreign currency translation impact	4,800
Divestiture	(7,221)
Balance as of September 30, 2020 (unaudited)	$	487,101

The excess purchase price over the fair value of assets acquired is recorded as goodwill. As businesses are acquired, we assign assets acquired (including goodwill) and liabilities assumed to either our existing reporting unit or a newly identified reporting unit as of the date of the acquisition. In the event a disposal group meets the definition of a business, goodwill is allocated to the disposal group based on the relative fair value of the disposal group to the related reporting unit. As we have one operating segment comprised of components with similar economic characteristics, we allocate goodwill to one reporting unit for goodwill impairment testing. Goodwill is tested for impairment on an annual basis, and between annual tests if indicators of potential impairment exist, using a fair-value-based approach based on the market capitalization of the reporting unit. Our annual impairment test is performed in the fourth quarter of each year.No impairment of goodwill was identified during the nine months ended September 30, 2020 or the twelve months ended December 31, 2019.

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Leases

9 Months Ended

Sep. 30, 2020

Leases [Abstract]

Leases

Leases

We have operating leases for corporate offices, automobiles, and certain equipment. Our leases have remaining terms of 1 year to 94 years, some of which may include options to extend the leases for up to 9 years, and some of which may include options to terminate the leases within 1 year. Leases with an initial term of 12 months or less are not recorded on the balance sheet. We recognize lease expense for these leases on a straight-line basis over the lease term. Amounts related to finance lease activities and income from leasing activities were not material for the periods presented.

The components of operating lease expense were as follows (unaudited):

	Three Months Ended				Nine Months Ended
(In thousands)	September 30, 2020		September 30, 2019		September 30, 2020		September 30, 2019
Operating Lease Cost (a)	$	4,869	$	5,456	$	15,941	$	16,951
(a) includes variable and short-term lease costs

Maturities of lease liabilities as of September 30, 2020 were as follows (unaudited):

(In thousands)
Years ending December 31,	Operating Leases
2020 (Excluding the nine months ended September 30, 2020)	$	7,012
2021	17,340
2022	11,465
2023	8,229
2024	7,062
Thereafter	14,161
Total future minimum lease payments	65,269
Less imputed interest	(11,325)
Total	$	53,944

As of September 30, 2020, we have additional operating leases, that have not commenced during the nine months ended September 30, 2020, which were not material.

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Income taxes

9 Months Ended

Sep. 30, 2020

Income Tax Disclosure [Abstract]

Income taxes

Income taxes

We account for income taxes under the asset and liability method. Deferred tax assets and liabilities are recognized for the expected tax consequences of temporary differences between the tax bases of assets and liabilities and their reported amounts. Valuation allowances are established when necessary to reduce deferred tax assets to amounts which are more likely than not to be realized. We had a valuation allowance of $102 million and $86 million at September 30, 2020 and December 31, 2019, respectively. A majority of the valuation allowance is related to the deferred tax assets of National Instruments Hungary Kft. ("NI Hungary").

We account for uncertainty in income taxes recognized in our financial statements using prescribed recognition thresholds and measurement attributes for financial statement disclosure of tax positions taken or expected to be taken on our tax returns. We had $6.9 million and $6.7 million of unrecognized tax benefits at September 30, 2020 and December 31, 2019, respectively, all of which would affect our effective income tax rate if recognized. We recorded no change in unrecognized tax benefits for the three months ended September 30, 2020, as a result of the tax positions taken during prior periods. As of September 30, 2020, it is reasonably possible that we will recognize tax benefits in the amount of $2.9 million in the next twelve months due to the closing of open tax years. The nature of the uncertainty is related to deductions taken on returns that have not been examined by the applicable tax authority.  Our continuing policy is to recognize interest and penalties related to income tax matters in income tax expense. As of September 30, 2020, we had approximately $0.8 million accrued for interest related to uncertain tax positions. The tax years 2013 through 2020 remain open to examination by the major taxing jurisdictions to which we are subject.  

Our provision for income taxes reflected an effective tax rate of (11)% and 23% for the three months ended September 30, 2020 and 2019, respectively, and 24% and 18% for the nine months ended September 30, 2020 and 2019, respectively. For the three months ended September 30, 2020, our effective tax rate was higher than the U.S. federal statutory rate of 21% as a result of state income taxes net of federal benefit, nondeductible officer compensation, the net effect of non-permanent investment in foreign jurisdictions, nondeductible acquisition costs and the change in intercompany prepaid tax asset, offset by the research and development tax credit, an enhanced deduction for certain research and development expenses, and the deduction for foreign-derived deduction eligible income. For the nine months ended September 30, 2020, our effective tax rate was higher than the U.S. federal statutory rate of 21% as a result of state income taxes net of federal benefit, nondeductible officer compensation, the net effect of non-permanent investment in foreign jurisdictions, nondeductible acquisition costs, the change in intercompany prepaid tax asset and the gain on the sale of our AWR business, offset by the research and development tax credit, an enhanced deduction for certain research and development expenses, and the deduction for foreign-derived deduction eligible income. For the three months ended September 30, 2019, our effective tax rate was higher than the U.S. federal statutory rate of 21% as a result of state income taxes, the U.S. tax on global intangible low-taxed income, nondeductible officer compensation, and an adjustment to the one-time transition tax on deferred foreign income, offset by the research and development tax credit, an enhanced deduction for certain research and development expenses, a decrease in unrecognized tax benefits resulting from the closing of open tax years, and the deduction for foreign-derived deduction eligible income. For the nine months ended September 30, 2019, our effective tax rate was lower than the U.S. federal statutory rate of 21% as a result of an enhanced deduction for certain research and development expenses, a decrease in unrecognized tax benefits resulting from the closing of open tax years, the research and development tax credit, excess tax benefits from share-based compensation, a tax benefit from disqualifying dispositions of equity awards that do not ordinarily result in a tax benefit, and the deduction for foreign-derived deduction eligible income, offset by state income taxes, the U.S. tax on global intangible low-taxed income, nondeductible officer compensation, and an adjustment to the one-time transition tax on deferred foreign income.

Our earnings in Hungary are subject to a statutory tax rate of 9%. In addition, our research and development activities in Hungary benefit from a tax law in Hungary that provides for an enhanced deduction for qualified research and development expenses. The tax position of our Hungarian operations resulted in income tax expense of $0.1 million and $0.3 million for the three and nine months ended September 30, 2020, respectively, and income tax benefits of $1.6 million and $4.2 million for the three and nine months ended September 30, 2019, respectively.

Earnings from our operations in Malaysia are free of tax under a tax holiday effective January 1, 2013. This tax holiday expires in 2037. If we fail to satisfy the conditions of the tax holiday, this tax benefit may be terminated early. The income tax benefits of the tax holiday for the three and nine months ended September 30, 2020 were approximately $0.2 million and $0.4 million, respectively. The income tax benefits of the tax holiday for the three and nine months ended September 30, 2019 were approximately $1.8 million and $3.1 million, respectively.  The impact of the tax holiday on a per share basis for the three and nine months ended September 30, 2020 was a benefit of $0.01 per share. The impact of the tax holiday on a per share basis for the three and nine months ended September 30, 2019 was a benefit of $0.01 and $0.02 per share, respectively.

No other taxing jurisdictions had a significant impact on our effective tax rate. We have not entered into any advanced pricing or other agreements with the IRS with regard to any foreign jurisdictions.

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Comprehensive Income

9 Months Ended

Sep. 30, 2020

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Comprehensive income

Comprehensive income    

Our comprehensive income is comprised of net income, foreign currency translation, unrealized gains and losses on forward contracts and securities classified as available-for-sale. The accumulated OCI, net of tax, for the nine months ended September 30, 2020 and 2019, consisted of the following:  

	September 30, 2020
	(Unaudited)
(In thousands)	Currency translation adjustment		Investments		Derivative instruments		Accumulated other comprehensive income/(loss)
Balance as of December 31, 2019	$	(25,831)	$	(85)	4,846		$	(21,070)
Current-period other comprehensive income (loss)	6,507		(317)		(7,699)		(1,509)
Reclassified from accumulated OCI into income	—		—		(2,429)		(2,429)
Income tax (benefit) expense	—		(45)		(2,223)		(2,268)
Balance as of September 30, 2020	$	(19,324)	$	(357)	$	(3,059)	$	(22,740)

	September 30, 2019
	(Unaudited)
(In thousands)	Currency translation adjustment		Investments		Derivative instruments		Accumulated other comprehensive income/(loss)
Balance as of December 31, 2018	$	(22,485)	$	(1,308)	6,862		$	(16,931)
Current-period other comprehensive (loss) income	(9,303)		1,494		8,671		862
Reclassified from accumulated OCI into income	—		—		(7,312)		(7,312)
Income tax (benefit) expense	—		(11)		366		355
Balance as of September 30, 2019	$	(31,788)	$	197	$	7,855	$	(23,736)

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Authorized shares of common and preferred stock and stock-based compensation plans

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

Authorized shares of common and preferred stock and stock-based compensation plans

Authorized shares of common and preferred stock and stock-based compensation plans

Authorized shares of common and preferred stock

Following approval by the Company’s Board of Directors and stockholders, on May 14, 2013, the Company’s certificate of incorporation was amended to increase the authorized shares of common stock by 180,000,000 shares to a total of 360,000,000 shares. As a result of this amendment, the total number of shares which the Company is authorized to issue is 365,000,000 shares, consisting of (i) 5,000,000 shares of preferred stock, par value $0.01 per share, and (ii) 360,000,000 shares of common stock, par value $0.01 per share.

Restricted stock unit plans  

Our stockholders approved our 2005 Incentive Plan (the “2005 Plan”) in May 2005. At the time of approval, 4,050,000 shares of our common stock were reserved for issuance under the 2005 Plan, as well as the number of shares which had been reserved but not issued under our 1994 Incentive Plan (the “1994 Plan”) which terminated in May 2005, and any shares that returned to the 1994 Plan as a result of termination of options or repurchase of shares issued under such plan. The 2005 Plan provided for the granting of incentive awards in the form of restricted stock and RSUs to directors, executive officers and employees of the Company and its subsidiaries. Awards vest over a three, five or ten-year period, beginning on the date of grant. Vesting of ten-year awards may accelerate based on our previous year’s earnings and growth but ten-year awards cannot accelerate to vest over a period of less than five years. The 2005 Plan terminated on May 11, 2010, except with respect to outstanding awards previously granted thereunder. There were 3,362,304 shares of common stock that were reserved but not issued under the 2005 Plan as of May 11, 2010.  

Our stockholders approved our 2010 Incentive Plan (the “2010 Plan”) on May 11, 2010. At the time of approval, 3,000,000 shares of our common stock were reserved for issuance under the 2010 Plan, as well as the 3,362,304 shares of common stock that were reserved but not issued under the 1994 Plan and the 2005 Plan as of May 11, 2010, and any shares that are returned to the 1994 Plan and the 2005 Plan as a result of the forfeiture or termination of options or RSUs or repurchase of shares issued under those plans. The 2010 Plan provided for the granting of incentive awards in the form of restricted stock and RSUs to employees, directors and consultants of the Company and employees and consultants of any parent or subsidiary of the Company. Awards vest over a three, five or ten-year period, beginning on the date of grant. Vesting of ten-year awards may accelerate based on our previous year’s earnings and growth but ten-year awards cannot accelerate to vest over a period of less than five years. The 2010 Plan terminated on May 12, 2015, except with respect to the outstanding awards previously granted thereunder. There were 2,518,416 shares of common stock that were reserved but not issued under the 2010 Plan as of May 12, 2015.

Our stockholders approved our 2015 Equity Incentive Plan (the “2015 Plan”) on May 12, 2015. At the time of approval, 3,000,000 shares of our common stock were reserved for issuance under the 2015 Plan, as well as the 2,518,416 shares of common stock that were reserved but not issued under the 2010 Plan as of May 12, 2015, and any shares that were returned to the 1994, 2005, and the 2010 Plans as a result of the forfeiture or termination of options or RSUs or repurchase of shares issued under those plans. The 2015 Plan provides for the granting of incentive awards in the form of restricted stock and RSUs to employees, directors and consultants of the Company and employees and consultants of any parent or subsidiary of the Company and such awards may be subject to performance-based vesting conditions. Awards generally vest over a three, four, five or ten-year period, beginning on the date of grant. Vesting of ten-year awards may accelerate based on our previous year’s earnings and growth but ten-year awards cannot accelerate to vest over a period of less than five years. The 2015 plan terminated on May 5, 2020, except with respect to the outstanding awards previously granted thereunder. There were 567,142 shares of common stock that were reserved but not issued under the 2015 Plan as of May 5, 2020.   

Our stockholders approved our 2020 Equity Incentive Plan (the “2020 Plan”) on May 5, 2020. At the time of approval, 4,500,000 shares of our common stock were reserved for issuance under the 2020 Plan, as well as the 567,142 shares of common stock that were reserved but not issued under the 2015 Plan as of May 5, 2020, and any shares that were returned to the 2005, 2010, and 2015 Plans as a result of the forfeiture or termination of RSUs or repurchase of shares issued under those plans. The 2020 Plan provides for the granting of incentive awards in the form of restricted stock and RSUs to employees, directors and consultants of the Company and employees and consultants of any parent or subsidiary of the Company. Awards generally vest over a one, three or four-year period, beginning on the date of the grant and awards may be subject to performance-based vesting conditions. There were 5,141,465 shares available for grant under the 2020 Plan at September 30, 2020.

Performance-based stock units

During the nine months ended September 30, 2020 and 2019, we granted 144,647 and 92,809 PRSUs, respectively, of performance-based restricted stock units (“PRSUs”) to executive officers pursuant to the 2015 Plan. The PRSUs may be earned based on our total shareholder return ("TSR") compared to the TSR of the Russell 2000 Index (the “Index”) over a three-year performance period. For the PRSUs granted during the nine months ended September 30, 2020, the three-year performance period commenced on January 1, 2020, and will end on December 31, 2022, and for the PRSUs granted during the nine months ended September 30, 2019, the three year performance commenced on January 1, 2019 and will end on December 31, 2021, using the average daily closing price over a 30-day lookback in each case. The number of awards earned could range from zero to two times the target number of shares granted.

The fair values of PRSUs are estimated using a Monte Carlo simulation. The determination of fair value of the PRSUs are based on our stock price and a number of assumptions including the expected volatility, expected dividend yield and the risk-free interest rate. The expected volatility at the date of grant was based on the historical volatilities of our stock and the companies included in the Index over the performance period. The Monte Carlo model is based on random projections of stock-price paths and must be repeated numerous times to achieve a probabilistic assessment. The key assumptions used in valuing these market-based awards are as follows:

	Nine Months Ended
	(unaudited)
	September 30, 2020	September 30, 2019
Number of simulations	100,000	100,000
Expected volatility	27.41%	26.08%
Expected life in years	2.92 years	2.94 years
Risk-free interest rate	1.38%	2.52%
Dividend yield	2.32%	1.96%

The weighted average grant date fair value of the market-based awards, as determined by the Monte Carlo valuation model, was $61.00 per share and $57.46 per share in 2020 and 2019, respectively.

Employee stock purchase plan  

Our employee stock purchase plan (“ESPP”) permits substantially all domestic employees and employees of designated subsidiaries to acquire our common stock at a purchase price of 85% of the lower of the market price at the beginning or the end of the purchase period. The plan has quarterly purchase periods generally beginning on February 1, May 1, August 1 and November 1 of each year. Employees may designate up to 15% of their compensation for the purchase of common stock under the ESPP. On May 14, 2019, our stockholders approved an additional 3,000,000 shares for issuance under our employee stock purchase plan. At September 30, 2020, we had 3,321,597 shares of common stock reserved for future issuance under the ESPP. We issued 764,173 shares under this plan in the nine months ended September 30, 2020 and the weighted average purchase price was $32.67 per share. During the nine months ended September 30, 2020, we did not make any changes in accounting principles or methods of estimates with respect to our ESPP.  

Authorized Preferred Stock and Preferred Stock Purchase Rights Plan  

We have 5,000,000 authorized shares of preferred stock. On January 21, 2004, our Board of Directors designated 750,000 of these shares as Series A Participating Preferred Stock in conjunction with the adoption of a Preferred Stock Rights Agreement which expired on May 10, 2014. There were no shares of preferred stock issued and outstanding at September 30, 2020.

Stock repurchases and retirements 

From time to time, our Board of Directors has authorized various programs for our repurchase of shares of our common stock depending on market conditions and other factors. Under the current program, during the three months ended September 30, 2020, we repurchased 446,502 shares of our common stock at a weighted average price per share of $34.86 and during the nine months ended September 30, 2020, we repurchased 1,114,701 shares of our common stock at a weighted average price per share of $35.21. Under the current program, during the three months ended September 30, 2019, we repurchased 1,056,078 shares of our common stock at a weighted average price per share of $42.42 and during the nine months ended September 30, 2019, we repurchased 3,205,676 shares of our common stock at a weighted average price per share of $42.79. At September 30, 2020, there were 1,885,299 shares remaining available for repurchase under the stock repurchase program. The stock repurchase program does not have an expiration date.

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Segment and geographic information

9 Months Ended

Sep. 30, 2020

Segment Reporting [Abstract]

Segment and geographic information

Segment and geographic information 

We operate as one operating segment. Operating segments are defined as components of an enterprise for which separate financial information is evaluated regularly by the chief operating decision maker, who is our chief executive officer, in deciding how to allocate resources and in assessing performance. Our chief operating decision maker evaluates our financial information and resources and assesses the performance of these resources on a consolidated basis. Since we operate in one operating segment, all required financial segment information can be found in the condensed consolidated financial statements and the notes thereto.

We sell our products in three geographic regions which consist of Americas, EMEA and APAC. Our sales to these regions share similar economic characteristics, similar product mix, similar customers, and similar distribution methods. Revenue from the sale of our products, which are similar in nature, and software maintenance is reflected as total net sales in our Consolidated Statements of Income. (See Note 2 - Revenue of Notes to Consolidated Financial Statements for total net sales by the major geographic areas in which we operate).    

Based on the billing location of the customer, total sales outside the U.S. for the three months ended September 30, 2020 and 2019 were $187 million and $208 million, respectively, and $564 million and $617 million for the nine months ended September 30, 2020 and 2019, respectively. Total property and equipment, net, outside the U.S. was $135 million as of September 30, 2020 and $130 million as of December 31, 2019. Revenues and long-lived assets attributable to each individual foreign country outside of the U.S. were not material.

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Debt

9 Months Ended

Sep. 30, 2020

Debt Disclosure [Abstract]

Debt

Debt

On June 12, 2020, we entered into an Amended and Restated Credit Agreement (the “Credit Agreement”) with the lenders from time to time party thereto (the “Lenders"), and Wells Fargo Bank, National Association, as the administrative agent, swingline lender and issuing lender (“Administrative Agent”), with Wells Fargo Securities, LLC and BofA Securities, Inc., as joint lead arrangers and joint bookrunners. The Credit Agreement amends and restates in its entirety and refinances our previous loan agreement, dated as of May 9, 2013, with Wells Fargo Bank, National Association, which was amended on April 16, 2020 as well as on October 29, 2015 and April 27, 2018 (the “Loan Agreement”). The Credit Agreement was subsequently amended on October 30, 2020 as further described in Note 18 – Subsequent Events of Notes to Consolidated Financial Statements.

The Credit Agreement provides for an initial $145 million credit facility consisting of a secured revolving loan facility in an aggregate principal amount of up to $75 million, including a $10 million sub-facility for the issuance of letters of credit, and a secured term loan facility in an aggregate principal amount of up to $70 million, which term loan facility is available until the date that is 60 days following the closing date of the Credit Agreement. Subject to the terms and conditions of the Credit Agreement, including obtaining commitments from existing lenders or new lenders, we may request additional term loan or revolving commitments of up to $105 million in the aggregate. Pursuant to the Credit Agreement, the revolving line of credit terminates, and all revolving loans and term loans are due and payable, on June 12, 2023. The revolving loans and term loans accrue interest, at our option, at a base rate equal to the highest of (a) the prime rate, (b) the federal funds rate plus 0.50%, and (c) a LIBOR loan interest rate of LIBOR for an interest period of one month plus 1.00%, plus a margin of 1.25% to 1.75%, or LIBOR plus a margin of 2.25% to 2.75%, in each case with the margin being determined based upon our consolidated total leverage ratio. The term loan amortizes in quarterly payments equal to 1.25% of the original principal amount of the term loan, with the remaining outstanding balance being due and payable at maturity. The Credit Agreement contains financial covenants requiring us to maintain a maximum total leverage ratio of less than or equal to 2.75 to 1.00 and a minimum fixed charge coverage ratio of greater than or equal to 1.25 to 1.00, in each case determined in accordance with the Credit Agreement.

The Credit Agreement provides for a commitment fee of 0.375% to 0.500% per annum, determined based upon our consolidated total leverage ratio, on the average daily unused amount of the revolving committed amount, payable quarterly in arrears. In addition, we will pay commitment fees based on the applicable margin set forth in the Credit Agreement in an amount equal to 0.375% to 0.500% per annum, determined based upon our consolidated total leverage ratio, of the initial term loan as a commitment fee until such time as the initial term loan is drawn or the initial term loan commitments expire or are terminated.

The Credit Agreement requires that certain of the Company’s wholly-owned domestic subsidiaries (the “Subsidiary Guarantors”) will enter into a guaranty agreement (“Guaranty”) in favor of the Administrative Agent guarantying our obligations under the Credit Agreement, among other things. In connection with the Credit Agreement and Guaranty, we, along with the Subsidiary Guarantors and the Administrative Agent have entered into a Collateral Agreement (“Collateral Agreement”) pursuant to which we and each Subsidiary Guarantor have granted a lien on substantially all of our assets to secure their obligations under the Credit Agreement and the Guaranty.

The Credit Agreement contains customary affirmative and negative covenants. The affirmative covenants include, among other things, delivery of financial statements, compliance certificates and notices, payment of taxes and other obligations, maintenance of existence, maintenance of properties and insurance, maintenance of books and records, and compliance with applicable laws and regulations. The negative covenants include, among other things, limitations on indebtedness, liens, mergers, consolidations, acquisitions and sales of assets, investments, changes in the nature of the business, affiliate transactions and certain restricted payments. The Credit Agreement contains customary events of default including, among other things, payment defaults, breaches of covenants or representations and warranties, cross-defaults with certain other indebtedness, bankruptcy and insolvency events, judgment defaults and change in control events, subject to grace periods in certain instances. Upon an event of default, the Administrative Agent and the Lenders may declare all or a portion of our outstanding obligations payable by us to be immediately due and payable and exercise other rights and remedies provided for under the Credit Agreement. Under certain circumstances, a default interest rate will apply on all obligations during the existence of an event of default under the Credit Agreement at a per annum rate of interest equal to 2.00% above the otherwise applicable interest rate.

Proceeds of loans made under the revolving loan facility portion of the Credit Agreement may be used for working capital and other general corporate purposes. We may prepay the loans under the Credit Agreement in whole or in part at any time without premium or penalty.

The following table presents the amounts outstanding related to our borrowing arrangements discussed above as of September 30, 2020 and December 31, 2019, respectively (unaudited, in thousands):

	September 30,		December 31,
	2020		2019
Secured
2020 term loan (effective interest rate of 3.0%)	$	69,125	$	—
2020 revolving loan facility (effective interest rate of 3.0%)	20,000		—
Total Debt	89,125		—
Less: Unamortized debt issuance costs	(1,336)		—
Less: Current Portion of Total Debt	(3,500)		—
Total Debt, non-current	$	84,289	$	—

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Commitments and contingencies

9 Months Ended

Sep. 30, 2020

Commitments and Contingencies Disclosure [Abstract]

Commitments and contingencies

Commitments and contingencies  

We offer a one-year limited warranty on most hardware products which is included in the terms of sale of such products. We also offer optional extended warranties on our hardware products for which the related revenue is recognized ratably over the warranty period. Provision is made for estimated future warranty costs at the time of the sale for the estimated costs that may be incurred under the standard warranty. Our estimate is based on historical experience and product sales during the period.  The warranty reserve for the nine months ended September 30, 2020 and 2019 was as follows:

	Nine Months Ended September 30,
(In thousands)	(Unaudited)
	2020		2019
Balance at the beginning of the period	$	2,561	$	3,173
Accruals for warranties issued during the period	1,824		1,665
Accruals related to pre-existing warranties	405		(441)
Settlements made (in cash or in kind) during the period	(2,088)		(1,899)
Balance at the end of the period	$	2,702	$	2,498

As of September 30, 2020, we had non-cancelable purchase commitments with various suppliers of customized inventory and inventory components totaling approximately $5.2 million over the next twelve months

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Restructuring

9 Months Ended

Sep. 30, 2020

Restructuring and Related Activities [Abstract]

Restructuring

Restructuring

Since the first quarter of 2017, we have been taking steps to optimize our processes, reduce job duplication, evaluate where we should shift and centralize activities, improve efficiencies, and rebalance our resources on what we believe to be higher return activities. These steps involve reductions in our overall employee headcount. The timing and scope of our headcount reductions will vary.

A summary of the charges in our consolidated statement of operations resulting from our restructuring activities is shown below:

	Three Months Ended September 30,			Nine Months Ended September 30,
(In thousands)	(Unaudited)			(Unaudited)
	2020		2019	2020		2019
Cost of sales	$	(13)	—	$	7	—
Research and development	38		34	4,716		690
Sales and marketing	512		2,993	8,055		7,958
General and administrative	121		990	683		2,512
Total restructuring and other related costs	$	658	4,017	$	13,461	11,160

A summary of balance sheet activity related to our restructuring activity is shown below:

	Restructuring Liability
	(in thousands)
Balance as of December 31, 2019	$	9,527
Income statement expense	13,461
Cash payments	(19,651)
Balance as of September 30, 2020	$	3,337

The liability of $3.3 million at September 30, 2020  relating  to  our restructuring activity  is  recorded  in the “accrued compensation” line item of our consolidated balance sheet.

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Litigation	9 Months Ended
	Sep. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Litigation	Litigation    We are not currently a party to any material litigation. However, in the ordinary course of our business, we have in the past, are currently and will likely become involved in various legal proceedings, claims, and regulatory, tax or government inquiries and investigations, and could incur uninsured liability in any one or more of them. We also periodically receive notifications from various third parties related to alleged infringement of patents or intellectual property rights, commercial disputes or other matters. No assurances can be given with respect to the extent or outcome of any investigation, litigation or dispute.

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Acquisitions

9 Months Ended

Sep. 30, 2020

Business Combinations [Abstract]

Acquisitions

Acquisitions

Acquisition of OptimalPlus

On July 2, 2020, we completed the acquisition of Optimal Plus Ltd. (“OptimalPlus”), a global leader in data analytics software for the semiconductor, automotive and electronics industries that is based in Israel. As a result of acquiring 100% of the outstanding share capital of OptimalPlus, OptimalPlus became our wholly-owned subsidiary. This transaction is being accounted for as a business combination using the acquisition method of accounting. All of the acquired assets and liabilities of OptimalPlus have been recorded at their respective fair values as of the acquisition date. Transaction costs have been expensed as incurred.

The acquisition was funded primarily by cash on hand in addition to $70 million drawn under our term loan facility on June 30, 2020. See Note 13 – Debt of Notes to Consolidated Financial Statements for further information on our outstanding borrowings. During the nine months ended September 30, 2020, we expensed $7 million of transaction costs in connection with the acquisition of OptimalPlus, which are included in selling, general and administrative expenses.

At the acquisition date, total consideration transferred was approximately $353 million, inclusive of $18 million in cash acquired. Additionally, unvested in-the-money share options of certain OptimalPlus employees were exchanged into the right to receive deferred cash consideration in accordance with the terms of the share purchase agreement. Approximately $12 million of deferred cash consideration was allocated to post-combination expense and is not included in the total consideration transferred. The deferred cash consideration is subject to the original vesting schedule of the corresponding unvested options that were replaced and the amounts will be recognized as compensation expense over the remaining service period.

The excess of the purchase price over the net assets acquired was recorded as goodwill. Goodwill generated from the acquisition is primarily attributable to expected growth in the scope of and market opportunities for our software-defined automated test and measurement platform. As a result of the structure of the transaction, the balance of goodwill is deductible in the U.S. over 15 years for income tax purposes.

Fair value of net assets acquired and liabilities assumed

The information below represents the preliminary purchase price allocation of OptimalPlus (in thousands):

	July 2, 2020
Consideration Transferred	352,642
Cash	17,661
Intangible assets	127,600
Goodwill	227,280
Contract assets	15,454
Deferred revenue	(7,341)
Accounts receivable	4,927
Other assets and liabilities	(2,545)
Deferred tax liabilities	(30,394)
Net assets acquired	352,642

Our preliminary estimates of the fair value of the assets acquired and the liabilities assumed are based on the information currently available, and we are continuing to evaluate the underlying inputs and assumptions used in our valuations.

Accordingly, these preliminary estimates are subject to change during the measurement period, which is up to one year from the date of acquisition. A decrease in the fair value of assets acquired or an increase in the fair value of liabilities assumed in the acquisition from those valuation would result in a corresponding increase in the amount of goodwill acquired.

Acquired intangible assets will be amortized over their estimated useful lives on a straight-line basis. The following table summarizes the preliminary purchase price allocation, and the preliminary average remaining useful lives, for identifiable intangible assets acquired (dollars in thousands):

	Estimated Fair Value	Estimated Useful Lives (in years)
Customer relationships	30,100	5
Developed technology	81,400	6
In-process research and development (IPR&D)	10,200	6
Other intangibles	5,900	3-5
Total	127,600

Developed technology and IPR&D relate to software platforms for data analytics in the semiconductor, automotive, and electronic industries that combine machine-learning with a global data infrastructure to provide real-time product analytics and extract insights from data across the entire supply chain. We valued the developed technology and IPR&D using the multi-period excess earnings method under the income approach. This method reflects the present value of the projected cash flows that are expected to be generated by the technology less charges representing the contribution of other assets to those cash flows. The economic useful life was determined based on the technology cycle related to each technology, as well as the cash flows over the forecast period.

Customer relationships represent the fair value of future projected revenue that will be derived from sales of products to existing customers. Customer relationships were valued using the with-and-without-method under the income approach. In the with-and-without method, the fair value was measured by the difference between the present values of the cash flows with and without the existing customers in place over the period of time necessary to reacquire the customers. The economic useful life was determined by evaluating many factors, including the useful life of other intangible assets, the length of time remaining on the acquired contracts and the historical customer turnover rates.

Unaudited Pro Forma Information

The results of OptimalPlus have been included in our consolidated statements of income for the period subsequent to the acquisition date. The following unaudited pro forma financial information presents combined results of operations for the periods presented, as if the OptimalPlus acquisition had occurred on January 1, 2019, with adjustments to give effect to pro forma events that are directly attributable to the acquisition. These pro forma adjustments include additional amortization expense for the identifiable intangible assets, a reduction in revenue related to deferred revenue purchase accounting adjustments, an increase in interest expense related to the term loan entered into in connection with the acquisition, and adjustments to compensation expense for the replacement of unvested stock options discussed above, net of tax effects. For the pro forma presentation, given the assumed acquisition date of January 1, 2019, transaction and integration costs that were incurred at or subsequent to the actual acquisition date have been included in the calculation of pro forma net income for the nine months ended September 30, 2019, whereas transaction and integration costs that were incurred prior to the acquisition date have been excluded from the calculation of pro forma net income.

The unaudited pro forma results are presented for informational purposes only and are not necessarily indicative of what actual results of operations would have been if the acquisition had occurred as the beginning of the period presented, nor are they indicative of future results of operations. The unaudited pro forma results do not include the impact of synergies, nor any potential impacts on current or future market conditions which could alter the unaudited pro forma results.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
(in thousands)	(unaudited)				(unaudited)
Net sales	$	309,142	$	348,401	$	929,381	$	1,009,102
Net income	$	4,907	$	42,522	$	123,766	$	65,796

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Subsequent events

9 Months Ended

Sep. 30, 2020

Subsequent Events [Abstract]

Subsequent events

Subsequent events  

Dividends

On October 28, 2020, our Board of Directors declared a quarterly cash dividend of $0.26 per common share, payable on December 7, 2020, to stockholders of record on November 16, 2020.

Credit Agreement

On October 30, 2020, we amended our existing Credit Agreement to (i) increase the revolving line of credit from $75 million to $115 million, (ii) refinance the existing $70 million term loan with a new $100 million term loan, (iii) increase our ability to borrow additional funds by amending the incremental facilities limit to $100 million plus an unlimited amount, so long as after giving effect to the incurrence of such incremental increases, on a pro forma basis, the consolidated total leverage ratio does not exceed 2.25 to 1.00, (iv) reduce the applicable margin for LIBOR loans to a range of 1.50% to 2.00% and the applicable margin for base rate loans to a range of 0.50% to 1.00%, in each case based on our consolidated total leverage ratio, and remove the LIBOR floor, (v) amend the revolving credit commitment fee of 0.375% to 0.500% per annum to 0.250% to 0.375% per annum, determined based upon our consolidated total leverage ratio, on the average daily unused amount of the revolving committed amount, payable quarterly in arrears, (vi) extend the maturity date of both the revolving line of credit and term loan from June 12, 2023 to June 12, 2024 (the “Maturity Date”), and (vi) provide that the term loan shall be paid after the effective date for the Amendment in quarterly installments equal to 1.25% of the original principal amount and shall be paid in full, with accrued interest, on the Maturity Date.

Restructuring

On October 29, 2020, we announced a workforce reduction plan (the “Plan”) intended to accelerate our growth strategy and further optimize our operations and cost structure. The Plan is expected to result in reductions to our worldwide headcount of approximately 9% over the next 9-12 months. In connection with the Plan, we currently estimate that we will incur pre-tax charges of approximately $22 million to $28 million, consisting primarily of cash termination benefits and other employee-related costs that will be paid over the next 9-12 months. We expect that the majority of these charges will be recognized during the fourth quarter of 2020.

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Basis of presentation (Policies)

9 Months Ended

Sep. 30, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Basis of Accounting, Policy

Basis of presentation  

The accompanying unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto for the fiscal year ended December 31, 2019, included in our Annual Report on Form 10-K filed with the Securities and Exchange Commission ("SEC") on February 20, 2020 (the "Form 10-K"). In our opinion, the accompanying consolidated financial statements reflect all adjustments (consisting only of normal recurring items) considered necessary to present fairly our financial position at September 30, 2020 and December 31, 2019, the results of our operations and comprehensive income for three and nine months ended September 30, 2020 and 2019, our cash flows for the nine months ended September 30, 2020 and 2019 and our statement of stockholders' equity for the three and nine months ended September 30, 2020 and 2019. Our operating results for the three and nine months ended September 30, 2020 are not necessarily indicative of the results that may be expected for the year ending December 31, 2020. These financial statements have been prepared in accordance with accounting principles generally accepted in the United States.

Reclassifications

As further discussed below, certain prior period amounts have been reclassified to conform to the current period presentation. The reclassifications had no impact on our previously reported net income or cash flows:

•Before the second quarter of 2020, we included net sales attributable to our operations in India within the EMEIA region in Note 2 - Revenue of Notes to Consolidated Financial Statements. In the second quarter of 2020, we began including these amounts within the APAC (Australia, India, New Zealand, Southeast Asia, China, South Korea and Japan) geographic region, to reflect recent changes within our organizational structure. We have recast historical comparative information to conform to the September 30, 2020 presentation. Refer to Note 2 - Revenue of Notes to Consolidated Financial Statements for our revenue disaggregated by geographic region which now include the Americas (United States, Canada and Latin America), EMEA (Europe, Middle East, and Africa) and APAC.

•Before the second quarter of 2020, we presented “Interest income”, "Net foreign exchange gain (loss)", and "Other income (loss)" separately on the consolidated statements of income. In the second quarter of 2020, we began presenting these amounts within “Other (expense) income” in the consolidated statements of income for all periods presented. Refer to "Other (expense) income" in Note 1 - Basis of Presentation of Notes to Consolidated Financial Statements for additional information on the amounts that comprise "Other (expense) income".

Disclosures about Acquired and Disposed Businesses

In May 2020, the SEC adopted Release No. 33-10786 "Amendments to Financial Disclosures about Acquired and Disposed Businesses" ("Release No. 33-10786") which includes amendments to certain of its rules and forms related to the disclosure of financial information regarding acquired or disposed businesses. Among other changes, the amendments impact SEC rules relating to (1) the definition of “significant” subsidiaries, (2) requirements to provide financial statements for “significant” acquisitions, and (3) revisions to the formulation and usage of pro forma financial information. Release No. 33-10786 is effective on January 1, 2021, however, voluntary early adoption is permitted as long as all amendments are adopted in their entirety. We elected to early adopt all provisions of Release No. 33-10786 during the second quarter of 2020.

Summary of Significant Accounting Policies

As discussed above, we adopted the new expected credit loss standard as of January 1, 2020. There were no other significant changes in our accounting policies during the three and nine months ended September 30, 2020 compared to the significant accounting policies described in our Form 10-K.

Other Recently Adopted Accounting Pronouncements and Recent Accounting Guidance Not Yet Adopted

Recently Adopted Accounting Pronouncements

Current Expected Credit Losses ("CECL")

In June 2016, the Financial Accounting Standards Board ("FASB") issued ASU No. 2016-13, "Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments." The ASU replaces the incurred-loss impairment methodology and requires immediate recognition of estimated credit losses expected to occur for most financial assets, including trade receivables. Credit losses on available-for-sale debt securities with unrealized losses will be recognized as allowances for credit losses limited to the amount by which fair value is below amortized cost. We adopted the new standard on January 1, 2020 and the impact of the adoption was not material to our consolidated financial statements as credit losses are not expected to be significant based on historical collection trends, the financial condition of payment partners, and external market factors. We will continue to actively monitor the impact of the recent coronavirus (COVID-19) pandemic on expected credit losses.

Earnings Per Share

Earnings Per ShareBasic earnings per share (“EPS”) is computed by dividing net income by the weighted average number of common shares outstanding during each period. Diluted EPS is computed by dividing net income by the weighted average number of common shares and common share equivalents outstanding (if dilutive) during each period. The number of common share equivalents, which includes restricted stock units ("RSUs"), is computed using the treasury stock method.

Software to be Sold, Leased, or Otherwise Marketed, Policy

Implementation Costs Incurred in a Cloud Computing Arrangement

In August 2018, the FASB issued ASU 2018-15, “Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract,” which clarifies the accounting for implementation costs in cloud computing arrangements. The new standard aligns the treatment of implementation costs incurred by customers in cloud computing arrangements that are service contracts with the treatment of similar costs incurred to develop or obtain internal-use software. Under the new standard, implementation costs are deferred and presented in the same financial statement caption on the condensed consolidated balance sheet as a prepayment of related arrangement fees. The deferred costs are recognized over the term of the arrangement in the same financial statement caption in the condensed consolidated income statement as the related fees of the arrangement. We adopted the new standard on January 1, 2020. The new standard did not have a material impact on our consolidated financial statements and related disclosures.

Fair Value Measurement, Policy

Fair Value Measurements

In August 2018, the FASB issued ASU 2018-13, “Disclosure Framework — Changes to the Disclosure Requirements for Fair Value Measurement,” which modifies the disclosure requirements on fair value measurements. We adopted the new standard on January 1, 2020. The new standard did not have a material impact on our consolidated financial statements and related disclosures.

Income Tax, Policy

Income Taxes

In December 2019, the FASB issued ASU 2019-12, “Income Taxes — Simplifying the Accounting for Income Taxes (Topic 740),” which simplifies the accounting for income taxes by removing certain exceptions to the general principles in Topic 740. The amendments in this ASU also improve consistency and simplify other areas of Topic 740 by clarifying and amending existing guidance. The amendments in this ASU will be applied using different approaches depending on what the specific amendment relates to and, for public entities, are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. An entity is permitted to early adopt the guidance, and we early adopted ASU 2019-12 as of January 1, 2020. The adoption did not have a material impact on our consolidated financial statements and related disclosures.

Revenue

Revenue Recognition

Revenue is recognized upon transfer of control of the promised products or services to customers in an amount that reflects the consideration we expect to receive in exchange for those products or services. We enter into contracts that can include various combinations of our products or services, which are generally capable of being distinct and accounted for as separate performance obligations. Revenue is recognized net of allowances for returns and any taxes collected from customers, which are subsequently remitted to governmental authorities.

Disaggregation of Revenues

We disaggregate revenue from contracts with customers based on the timing of transfer of goods or services to customers (point-in-time or over time) and geographic region based on the billing location of the customer. Before the second quarter of 2020, we included net sales attributable to our operations in India within the EMEIA region. In the second quarter of 2020, we began including these amounts within the APAC geographic region, to reflect recent changes within our organizational structure. We have recast historical comparative information to conform to the September 30, 2020 presentation. The geographic regions are now presented as the Americas, EMEA and APAC to reflect this change.

Information about Contract Balances

Amounts collected in advance of services being provided are accounted for as deferred revenue. Nearly all of our deferred revenue balance is related to extended hardware and software maintenance contracts. Payment terms and conditions vary by contract type, although payment is typically due within 30 to 90 days of contract inception. In instances where the timing of revenue recognition differs from the timing of invoicing, we have determined our contracts generally do not include a significant financing component. The primary purpose of our invoicing terms is to provide customers with simplified and predictable ways of purchasing our products and services, not to receive financing from our customers, such as invoicing at the beginning of a subscription term with a portion of the revenue recognized ratably over the contract period, or to provide customers with financing, such as multi-year on-premises licenses that are invoiced annually with revenue recognized upfront.

Assets Recognized from the Costs to Obtain a Contract with a CustomerWe recognize an asset for the incremental costs of obtaining a contract with a customer if we expect the benefit of those costs to be longer than one year. We have determined that certain sales incentive programs meet the requirements to be capitalized. Capitalized incremental costs related to initial contracts and renewals are amortized over the same period because the commissions paid on both the initial contract and renewals are commensurate with one another. Total capitalized costs to obtain a contract were not material during the periods presented and are included in other long-term assets on our consolidated balance sheets.

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Basis of presentation (Tables)

9 Months Ended

Sep. 30, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Disposal Groups, Including Discontinued Operations

The divestiture of AWR resulted in the derecognition of the following assets and liabilities (in thousands):

Cash	$	1,027
Accounts receivable, net	7,233
Prepaid and other current assets	283
Goodwill	7,221
Other non-current assets	556
Total Assets	16,320
Deferred revenue	15,296
Other current liabilities	940
Cumulative translation adjustment	(660)
Total liabilities and stockholders' equity	15,576
Total assets divested, net (including cash)	$	744

Other (Expense) Income

Other (Expense) Income

Other (expense) income, net consisted of the following amounts (in thousands):

	Three Months Ended September 30,				Nine Months Ended September 30,
	(Unaudited)				(Unaudited)
	2020		2019		2020		2019
Interest income	$	414	$	1,930	$	3,724	$	6,187
Interest expense	(973)		—		(1,115)		—
Loss from equity-method investments	(627)		(239)		(2,559)		(406)
Net foreign exchange loss	(676)		(378)		(2,019)		(1,623)
Other	(139)		936		(615)		1,221
Other (expense) income, net	$	(2,001)	$	2,249	$	(2,584)	$	5,379

Reconciliation Of The Denominators Used To Calculate Basic EPS And Diluted EPS

The reconciliation of the denominators used to calculate basic EPS and diluted EPS for the three and nine months ended September 30, 2020 and 2019, are as follows (in thousands):

	Three Months Ended September 30,		Nine Months Ended September 30,
	(Unaudited)		(Unaudited)
	2020	2019	2020	2019
Weighted average shares outstanding-basic	131,419	131,385	131,017	131,896
Plus: Common share equivalents
RSUs	—	504	654	994
Weighted average shares outstanding-diluted	131,419	131,889	131,671	132,890

Other Current Liabilities

Other current liabilities on our consolidated balance sheet includes the following amounts (in thousands):

	As of September 30, 2020		As of December 31,
	(unaudited)		2019
Income taxes payable - current	$	23,487	$	6,791
Other	26,772		13,925
Total	$	50,259	$	20,716

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Revenue (Tables)

9 Months Ended

Sep. 30, 2020

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

Total net sales based on the disaggregation criteria described above are as follows:

			Three Months Ended September 30,
(In thousands)			(Unaudited)
	2020						2019
Net sales:	Point-in-Time(1)		Over Time		Total		Point-in-Time(1)		Over Time		Total
Americas	$	107,808	$	19,241	$	127,049	$	119,895	$	23,222	$	143,117
EMEA	57,988		20,551		78,539		70,076		19,662		89,738
APAC	92,050		10,486		102,536		98,161		9,426		107,587
Total net sales(1)	$	257,846	$	50,278	$	308,124	$	288,132	$	52,310	$	340,442
(1) Net sales contains hedging gains and losses, which do not represent revenues recognized from customers. See Note - 5 Derivatives instruments and hedging activities of Notes to Consolidated Financial Statements for more information on the impact of our hedging activities on our results of operations.

			Nine Months Ended September 30,
(In thousands)			(Unaudited)
	2020						2019
Net sales:	Point-in-Time(1)		Over Time		Total		Point-in-Time(1)		Over Time		Total
Americas	$	316,220	$	57,554	$	373,774	$	325,349	$	69,337	$	394,686
EMEA	181,330		58,594		239,924		216,644		57,411		274,055
APAC	274,341		30,795		305,136		290,140		26,866		317,006
Total net sales(1)	$	771,891	$	146,943	$	918,834	$	832,133	$	153,614	$	985,747
(1) Net sales contains hedging gains and losses, which do not represent revenues recognized from customers. See Note - 5 Derivatives instruments and hedging activities of Notes to Consolidated Financial Statements for more information on the impact of our hedging activities on our results of operations.

Schedule of Changes in Deferred Revenue, Current and Non-Current

Changes in deferred revenue, current and non-current, during the nine months ended September 30, 2020 were as follows:

	Amount
	(In thousands)
Balance as of December 31, 2019	$	164,925
Deferral of revenue billed in current period, net of recognition	95,934
Recognition of revenue deferred in prior periods	(103,274)
Acquisitions/Divestitures	(7,955)
Foreign currency translation impact	1,451
Balance as of September 30, 2020 (unaudited)	$	151,081

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Short-term investments (Tables)

9 Months Ended

Sep. 30, 2020

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

Schedule of Available-for-sale Securities Reconciliation

The following tables summarize unrealized gains and losses related to our short-term investments designated as available-for-sale debt securities:

	As of September 30, 2020
(In thousands)	(Unaudited)
			Gross		Gross
	Adjusted Cost		Unrealized Gain		Unrealized Loss		Fair Value
Corporate bonds	$	92,610	$	245	$	(2)	$	92,853
Total Short-term investments	$	92,610	$	245	$	(2)	$	92,853

(In thousands)	As of December 31, 2019
			Gross		Gross
	Adjusted Cost		Unrealized Gain		Unrealized Loss		Fair Value
Corporate bonds	$	237,423	$	628	$	(68)	$	237,983
Total Short-term investments	$	237,423	$	628	$	(68)	$	237,983

Investments Classified by Contractual Maturity Date

The following tables summarize the contractual maturities of our short-term investments designated as available-for-sale debt securities:

	As of September 30, 2020
(In thousands)	(Unaudited)
	Adjusted Cost		Fair Value
Due in less than 1 year	$	88,194	$	88,438
Due in 1 to 5 years	4,416		4,415
Total available-for-sale debt securities	$	92,610	$	92,853
Due in less than 1 year	Adjusted Cost		Fair Value
Corporate bonds	$	88,194	$	88,438
Total available-for-sale debt securities	$	88,194	$	88,438
Due in 1 to 5 years	Adjusted Cost		Fair Value
Corporate bonds	$	4,416	$	4,415
Total available-for-sale debt securities	$	4,416	$	4,415

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Fair value measurements (Tables)

9 Months Ended

Sep. 30, 2020

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis

Assets and liabilities measured at fair value on a recurring basis are summarized below:

	Fair Value Measurements at Reporting Date Using
(In thousands)	(Unaudited)
Description	September 30, 2020		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash and cash equivalents available for sale:
Money Market Funds	$	82,730	$	82,730	$	—	$	—
Short-term investments available for sale:
Corporate notes and bonds	92,853		—		92,853		—
Derivatives	5,363		—		5,363		—
Total Assets	$	180,946	$	82,730	$	98,216	$	—
Liabilities
Derivatives	$	(10,777)	$	—	$	(10,777)	$	—
Total Liabilities	$	(10,777)	$	—	$	(10,777)	$	—

(In thousands)	Fair Value Measurements at Reporting Date Using
Description	December 31, 2019		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets
Cash and cash equivalents available for sale:
Money Market Funds	$	87,397	$	87,397	$	—	$	—
Corporate notes and bonds	9,962		—		9,962		—
Short-term investments available for sale:
Corporate bonds	237,983		—		237,983		—
Derivatives	8,209		—		8,209		—
Total Assets	$	343,551	$	87,397	$	256,154	$	—
Liabilities
Derivatives	$	(2,872)	$	—	$	(2,872)	$	—
Total Liabilities	$	(2,872)	$	—	$	(2,872)	$	—

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Derivative instruments and hedging activities (Tables)

9 Months Ended

Sep. 30, 2020

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Summary of Notional Amounts of Derivative Instruments

We held forward contracts designated as cash flow hedges with the following notional amounts:

(In thousands)	US Dollar Equivalent
	As of September 30, 2020		As of December 31,
	(Unaudited)		2019
British pound	$	23,251	$	13,988
Chinese yuan	57,943		32,970
Euro	209,385		130,122
Hungarian forint	89,962		95,228
Japanese yen	83,503		53,527
Korean won	26,918		24,728
Malaysian ringgit	41,681		32,725
Total forward contracts notional amount	$	532,643	$	383,288

Summary of Fair Value of Derivative Instruments on Consolidated Balance Sheets

The following tables present the fair value of derivative instruments on our Consolidated Balance Sheets at September 30, 2020 and December 31, 2019, respectively.   

	Asset Derivatives
	September 30, 2020			December 31, 2019
(In thousands)	(Unaudited)
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Derivatives designated as hedging instruments
Foreign exchange contracts - ST forwards	Prepaid expenses and other current assets	$	2,314	Prepaid expenses and other current assets	$	7,039
Foreign exchange contracts - LT forwards	Other long-term assets	2,639		Other long-term assets	970
Total derivatives designated as hedging instruments		$	4,953		$	8,009
Derivatives not designated as hedging instruments
Foreign exchange contracts - ST forwards	Prepaid expenses and other current assets	$	411	Prepaid expenses and other current assets	$	200
Total derivatives not designated as hedging instruments		$	411		$	200
Total derivatives		$	5,364		$	8,209

	Liability Derivatives
	September 30, 2020			December 31, 2019
(In thousands)	(Unaudited)
	Balance Sheet Location	Fair Value		Balance Sheet Location	Fair Value
Derivatives designated as hedging instruments
Foreign exchange contracts - ST forwards	Other current liabilities	$	(5,305)	Other current liabilities	$	(2,089)
Foreign exchange contracts - LT forwards	Other long-term liabilities	(4,230)		Other long-term liabilities	(351)
Total derivatives designated as hedging instruments		$	(9,535)		$	(2,440)
Derivatives not designated as hedging instruments
Foreign exchange contracts - ST forwards	Other current liabilities	$	(1,241)	Other current liabilities	$	(432)
Total derivatives not designated as hedging instruments		$	(1,241)		$	(432)
Total derivatives		$	(10,776)		$	(2,872)

Summary of Derivative Instruments, Gain (Loss)

The following tables present the effect of derivative instruments on our Consolidated Statements of Income for the three months ended September 30, 2020 and 2019, respectively:

September 30, 2020
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship	Gain or (Loss) Recognized in OCI on Derivative		Location of Gain or (Loss) Reclassified from Accumulated OCI into Income	Gain or (Loss) Reclassified from Accumulated OCI into Income
Foreign exchange contracts - forwards	$	(12,524)	Net sales	$	334
Foreign exchange contracts - forwards	1,849		Cost of sales	(448)
Foreign exchange contracts - forwards	1,144		Operating expenses	(266)
Total	$	(9,531)		$	(380)

September 30, 2019
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship	Gain or (Loss) Recognized in OCI on Derivative		Location of Gain or (Loss) Reclassified from Accumulated OCI into Income	Gain or (Loss) Reclassified from Accumulated OCI into Income
Foreign exchange contracts - forwards	$	6,736	Net sales	$	3,291
Foreign exchange contracts - forwards	(2,946)		Cost of sales	(176)
Foreign exchange contracts - forwards	(2,163)		Operating expenses	(112)
Total	$	1,627		$	3,003

(In thousands)
Derivatives not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income	Amount of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income
		September 30, 2020		September 30, 2019
		(Unaudited)		(Unaudited)
Foreign exchange contracts - forwards	Other expense (income)	$	(267)	287
Total		$	(267)	$	287

The following tables present the effect of derivative instruments on our Consolidated Statements of Income for the nine months ended September 30, 2020 and 2019, respectively:

September 30, 2020
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship	Gain or (Loss) Recognized in OCI on Derivative		Location of Gain or (Loss) Reclassified from Accumulated OCI into Income	Gain or (Loss) Reclassified from Accumulated OCI into Income
Foreign exchange contracts - forwards	$	(6,800)	Net sales	$	5,594
Foreign exchange contracts - forwards	(1,898)		Cost of sales	(1,817)
Foreign exchange contracts - forwards	(1,430)		Operating expenses	(1,348)
Total	(10,128)			$	2,429

September 30, 2019
(In thousands)
(Unaudited)
Derivatives in Cash Flow Hedging Relationship	Gain or (Loss) Recognized in OCI on Derivative		Location of Gain or (Loss) Reclassified from Accumulated OCI into Income	Gain or (Loss) Reclassified from Accumulated OCI into Income
Foreign exchange contracts - forwards	$	7,186	Net sales	$	7,687
Foreign exchange contracts - forwards	(3,386)		Cost of sales	(217)
Foreign exchange contracts - forwards	(2,441)		Operating expenses	(158)
Total	$	1,359		$	7,312

(In thousands)
Derivatives not Designated as Hedging Instruments	Location of Gain (Loss) Recognized in Income	Amount of Gain (Loss) Recognized in Income		Amount of Gain (Loss) Recognized in Income
		September 30, 2020		September 30, 2019
		(Unaudited)		(Unaudited)
Foreign exchange contracts - forwards	Other income (expense)	$	(163)	(82)
Total		$	(163)	$	(82)

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Inventories, net (Tables)

9 Months Ended

Sep. 30, 2020

Inventory Disclosure [Abstract]

Schedule of Inventory

Inventories, net consist of the following: 

	September 30, 2020		December 31,
(In thousands)	(Unaudited)		2019
Raw materials	$	110,773	$	110,078
Work-in-process	12,235		10,613
Finished goods	86,550		79,719
Total	$	209,558	$	200,410

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Intangible assets and goodwill, net (Tables)

9 Months Ended

Sep. 30, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

Intangible assets at September 30, 2020 and December 31, 2019 are as follows:

	September 30, 2020
(In thousands)	(Unaudited)						December 31, 2019
	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Capitalized software development costs	$	123,483	$	(86,096)	$	37,387	$	132,789	$	(76,910)	$	55,879
Acquired technology	105,008		(14,726)		90,282		91,900		(87,917)		3,983
Patents	36,531		(26,008)		10,523		35,609		(23,993)		11,616
Other	74,671		(29,796)		44,875		44,490		(31,885)		12,605
Total	$	339,693	$	(156,626)	$	183,067	$	304,788	$	(220,705)	$	84,083

Schedule of Goodwill

The carrying amount of goodwill as of September 30, 2020, was as follows:

	Amount
	(In thousands)
Balance as of December 31, 2019	$	262,242
Acquisition	227,280
Foreign currency translation impact	4,800
Divestiture	(7,221)
Balance as of September 30, 2020 (unaudited)	$	487,101

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Leases (Tables)

9 Months Ended

Sep. 30, 2020

Leases [Abstract]

Lease, Cost

The components of operating lease expense were as follows (unaudited):

	Three Months Ended				Nine Months Ended
(In thousands)	September 30, 2020		September 30, 2019		September 30, 2020		September 30, 2019
Operating Lease Cost (a)	$	4,869	$	5,456	$	15,941	$	16,951
(a) includes variable and short-term lease costs

Lessee, Operating Lease, Liability, Maturity

Maturities of lease liabilities as of September 30, 2020 were as follows (unaudited):

(In thousands)
Years ending December 31,	Operating Leases
2020 (Excluding the nine months ended September 30, 2020)	$	7,012
2021	17,340
2022	11,465
2023	8,229
2024	7,062
Thereafter	14,161
Total future minimum lease payments	65,269
Less imputed interest	(11,325)
Total	$	53,944

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Comprehensive income (Tables)

9 Months Ended

Sep. 30, 2020

Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]

Summary of Comprehensive Income (Loss)

The accumulated OCI, net of tax, for the nine months ended September 30, 2020 and 2019, consisted of the following:  

	September 30, 2020
	(Unaudited)
(In thousands)	Currency translation adjustment		Investments		Derivative instruments		Accumulated other comprehensive income/(loss)
Balance as of December 31, 2019	$	(25,831)	$	(85)	4,846		$	(21,070)
Current-period other comprehensive income (loss)	6,507		(317)		(7,699)		(1,509)
Reclassified from accumulated OCI into income	—		—		(2,429)		(2,429)
Income tax (benefit) expense	—		(45)		(2,223)		(2,268)
Balance as of September 30, 2020	$	(19,324)	$	(357)	$	(3,059)	$	(22,740)

	September 30, 2019
	(Unaudited)
(In thousands)	Currency translation adjustment		Investments		Derivative instruments		Accumulated other comprehensive income/(loss)
Balance as of December 31, 2018	$	(22,485)	$	(1,308)	6,862		$	(16,931)
Current-period other comprehensive (loss) income	(9,303)		1,494		8,671		862
Reclassified from accumulated OCI into income	—		—		(7,312)		(7,312)
Income tax (benefit) expense	—		(11)		366		355
Balance as of September 30, 2019	$	(31,788)	$	197	$	7,855	$	(23,736)

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Authorized shares of common and preferred stock and stock-based compensation plans (Tables)

9 Months Ended

Sep. 30, 2020

Share-based Payment Arrangement [Abstract]

Share-based Payment Arrangement, Performance Shares, Activity

The key assumptions used in valuing these market-based awards are as follows:

	Nine Months Ended
	(unaudited)
	September 30, 2020	September 30, 2019
Number of simulations	100,000	100,000
Expected volatility	27.41%	26.08%
Expected life in years	2.92 years	2.94 years
Risk-free interest rate	1.38%	2.52%
Dividend yield	2.32%	1.96%

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Debt (Tables)

9 Months Ended

Sep. 30, 2020

Debt Disclosure [Abstract]

Schedule of Long-term Debt Instruments

The following table presents the amounts outstanding related to our borrowing arrangements discussed above as of September 30, 2020 and December 31, 2019, respectively (unaudited, in thousands):

	September 30,		December 31,
	2020		2019
Secured
2020 term loan (effective interest rate of 3.0%)	$	69,125	$	—
2020 revolving loan facility (effective interest rate of 3.0%)	20,000		—
Total Debt	89,125		—
Less: Unamortized debt issuance costs	(1,336)		—
Less: Current Portion of Total Debt	(3,500)		—
Total Debt, non-current	$	84,289	$	—

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Commitments and contingencies (Tables)

9 Months Ended

Sep. 30, 2020

Commitments and Contingencies Disclosure [Abstract]

Schedule of Product Warranty Liability

The warranty reserve for the nine months ended September 30, 2020 and 2019 was as follows:

	Nine Months Ended September 30,
(In thousands)	(Unaudited)
	2020		2019
Balance at the beginning of the period	$	2,561	$	3,173
Accruals for warranties issued during the period	1,824		1,665
Accruals related to pre-existing warranties	405		(441)
Settlements made (in cash or in kind) during the period	(2,088)		(1,899)
Balance at the end of the period	$	2,702	$	2,498

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Restructuring (Tables)

9 Months Ended

Sep. 30, 2020

Restructuring and Related Activities [Abstract]

Summary of Restructuring Related Costs

A summary of the charges in our consolidated statement of operations resulting from our restructuring activities is shown below:

	Three Months Ended September 30,			Nine Months Ended September 30,
(In thousands)	(Unaudited)			(Unaudited)
	2020		2019	2020		2019
Cost of sales	$	(13)	—	$	7	—
Research and development	38		34	4,716		690
Sales and marketing	512		2,993	8,055		7,958
General and administrative	121		990	683		2,512
Total restructuring and other related costs	$	658	4,017	$	13,461	11,160

Schedule of Restructuring Reserve

A summary of balance sheet activity related to our restructuring activity is shown below:

	Restructuring Liability
	(in thousands)
Balance as of December 31, 2019	$	9,527
Income statement expense	13,461
Cash payments	(19,651)
Balance as of September 30, 2020	$	3,337

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Acquisitions (Tables)

9 Months Ended

Sep. 30, 2020

Business Combinations [Abstract]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The information below represents the preliminary purchase price allocation of OptimalPlus (in thousands):

	July 2, 2020
Consideration Transferred	352,642
Cash	17,661
Intangible assets	127,600
Goodwill	227,280
Contract assets	15,454
Deferred revenue	(7,341)
Accounts receivable	4,927
Other assets and liabilities	(2,545)
Deferred tax liabilities	(30,394)
Net assets acquired	352,642

Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination

The following table summarizes the preliminary purchase price allocation, and the preliminary average remaining useful lives, for identifiable intangible assets acquired (dollars in thousands):

	Estimated Fair Value	Estimated Useful Lives (in years)
Customer relationships	30,100	5
Developed technology	81,400	6
In-process research and development (IPR&D)	10,200	6
Other intangibles	5,900	3-5
Total	127,600

Business Acquisition, Pro Forma Information

	Three Months Ended September 30,				Nine Months Ended September 30,
	2020		2019		2020		2019
(in thousands)	(unaudited)				(unaudited)
Net sales	$	309,142	$	348,401	$	929,381	$	1,009,102
Net income	$	4,907	$	42,522	$	123,766	$	65,796

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Basis of presentation - Narrative (Details) - USD ($) $ in Thousands		9 Months Ended
	Jan. 15, 2020	Sep. 30, 2020	Sep. 30, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Disposal gain on sale of business/asset		$ 159,753	$ 26,842
Business acquisition, transaction costs	$ 1,000
AWR Corporation | Disposal Group, Disposed of by Sale, Not Discontinued Operations
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Proceeds from sale of business	161,000
Disposal gain on sale of business/asset	$ 160,000

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Basis of Presentation - Disposal Groups, Including Discontinued Operations (Details) - Disposal Group, Disposed of by Sale, Not Discontinued Operations - AWR Corporation $ in Thousands	Jan. 15, 2020 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash	$ 1,027
Accounts receivable, net	7,233
Prepaid and other current assets	283
Goodwill	7,221
Other non-current assets	556
Total Assets	16,320
Deferred revenue	15,296
Other current liabilities	940
Cumulative translation adjustment	(660)
Total liabilities and stockholders' equity	15,576
Total assets divested, net (including cash)	$ 744

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Basis of presentation - Schedule of Other Income (Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Interest income	$ 414	$ 1,930	$ 3,724	$ 6,187
Interest expense	(973)	0	(1,115)	0
Loss from equity-method investments	(627)	(239)	(2,559)	(406)
Net foreign exchange loss	(676)	(378)	(2,019)	(1,623)
Other	(139)	936	(615)	1,221
Other (expense) income	$ (2,001)	$ 2,249	$ (2,584)	$ 5,379

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Basis of presentation - Schedule of Earnings Per Share (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Weighted average shares outstanding - basic (in shares)	131,419,000	131,385,000	131,017,000	131,896,000
Plus: Common share equivalents
RSUs (in shares)	0	504,000	654,000	994,000
Weighted average shares outstanding-diluted (in shares)	131,419,000	131,889,000	131,671,000	132,890,000
Anti-dilutive securities excluded from the computation of diluted EPS (in shares)	3,490,700	1,611,000	276,000	568,000

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Basis of presentation - Schedule of Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Income taxes payable - current	$ 23,487	$ 6,791
Other	26,772	13,925
Other current liabilities	$ 50,259	$ 20,716

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Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Disaggregation of Revenue [Line Items]
Total net sales	$ 308,124	$ 340,442	$ 918,834	$ 985,747
Point-in-Time(1)
Disaggregation of Revenue [Line Items]
Total net sales	257,846	288,132	771,891	832,133
Over Time
Disaggregation of Revenue [Line Items]
Total net sales	50,278	52,310	146,943	153,614
Americas
Disaggregation of Revenue [Line Items]
Total net sales	127,049	143,117	373,774	394,686
Americas | Point-in-Time(1)
Disaggregation of Revenue [Line Items]
Total net sales	107,808	119,895	316,220	325,349
Americas | Over Time
Disaggregation of Revenue [Line Items]
Total net sales	19,241	23,222	57,554	69,337
EMEA
Disaggregation of Revenue [Line Items]
Total net sales	78,539	89,738	239,924	274,055
EMEA | Point-in-Time(1)
Disaggregation of Revenue [Line Items]
Total net sales	57,988	70,076	181,330	216,644
EMEA | Over Time
Disaggregation of Revenue [Line Items]
Total net sales	20,551	19,662	58,594	57,411
APAC
Disaggregation of Revenue [Line Items]
Total net sales	102,536	107,587	305,136	317,006
APAC | Point-in-Time(1)
Disaggregation of Revenue [Line Items]
Total net sales	92,050	98,161	274,341	290,140
APAC | Over Time
Disaggregation of Revenue [Line Items]
Total net sales	$ 10,486	$ 9,426	$ 30,795	$ 26,866

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Revenue - Change in Deferred Revenue (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2020 USD ($)
Movement in Deferred Revenue [Roll Forward]
Deferred revenue at December 31, 2018	$ 164,925
Deferral of revenue billed in current period, net of recognition	95,934
Recognition of revenue deferred in prior periods	(103,274)
Acquisitions/Divestitures	(7,955)
Foreign currency translation impact	1,451
Deferred revenue as of September 30, 2020	$ 151,081

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Revenue - Performance Obligations (Details) $ in Thousands	Sep. 30, 2020 USD ($)
Revenue from Contract with Customer [Abstract]
Revenue, remaining performance obligation	$ 84,000
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2020-10-01
Revenue from Contract with Customer [Abstract]
Revenue, remaining performance obligation, percentage	15.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, period	3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2021-01-01
Revenue from Contract with Customer [Abstract]
Revenue, remaining performance obligation, percentage	43.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2022-01-01
Revenue from Contract with Customer [Abstract]
Revenue, remaining performance obligation, percentage	42.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, period

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Short-term investments - Unrealized Gains And Losses Related To Cash, Cash Equivalents, And Short-Term Investments Designated As Available-For-Sale (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	$ 92,610	$ 237,423
Gross Unrealized Gain	245	628
Gross Unrealized Loss	(2)	(68)
Fair Value	92,853	237,983
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost	92,610	237,423
Gross Unrealized Gain	245	628
Gross Unrealized Loss	(2)	(68)
Fair Value	$ 92,853	$ 237,983

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Short-term investments - Contractual Maturities Of Short-Term Investments Designated As Available-For-Sale (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost, Due in less than 1 year	$ 88,194
Fair Value, Due in less than 1 year	88,438
Adjusted Cost, Due in 1 to 5 years	4,416
Fair Value, Due in 1 to 5 years	4,415
Adjusted Cost	92,610	$ 237,423
Fair Value	92,853	237,983
Carrying value of equity method investments	20,000
Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Adjusted Cost, Due in less than 1 year	88,194
Fair Value, Due in less than 1 year	88,438
Adjusted Cost, Due in 1 to 5 years	4,416
Fair Value, Due in 1 to 5 years	4,415
Fair Value	$ 92,853	$ 237,983

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Fair value measurements - Schedule of Assets And Liabilities Measured On Recurring Basis (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Short-term investments available for sale:
Short-term investments available for sale	$ 92,853	$ 237,983
Derivatives	5,363	8,209
Total Assets	180,946	343,551
Derivatives	(10,777)	(2,872)
Total Liabilities	(10,777)	(2,872)
Short-term investments	$ 92,853	237,983
Available-for-sale contractual maturity (in months)	60 months
Europe
Short-term investments available for sale:
Short-term investments	$ 5,000
Quoted Prices in Active Markets for Identical Assets (Level 1)
Short-term investments available for sale:
Derivatives	0	0
Total Assets	82,730	87,397
Derivatives	0	0
Total Liabilities	0	0
Significant Other Observable Inputs (Level 2)
Short-term investments available for sale:
Derivatives	5,363	8,209
Total Assets	98,216	256,154
Derivatives	(10,777)	(2,872)
Total Liabilities	(10,777)	(2,872)
Significant Unobservable Inputs (Level 3)
Short-term investments available for sale:
Derivatives	0	0
Total Assets	0	0
Derivatives	0	0
Total Liabilities	0	0
Money Market Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents available for sale	82,730	87,397
Money Market Funds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents available for sale	82,730	87,397
Money Market Funds | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents available for sale	0	0
Money Market Funds | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents available for sale	0	0
Corporate bonds
Short-term investments available for sale:
Short-term investments available for sale	92,853	237,983
Corporate bonds | Quoted Prices in Active Markets for Identical Assets (Level 1)
Short-term investments available for sale:
Short-term investments available for sale	0	0
Corporate bonds | Significant Other Observable Inputs (Level 2)
Short-term investments available for sale:
Short-term investments available for sale	92,853	237,983
Corporate bonds | Significant Unobservable Inputs (Level 3)
Short-term investments available for sale:
Short-term investments available for sale	$ 0	0
U.S. treasuries and agencies
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents available for sale		9,962
U.S. treasuries and agencies | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents available for sale		0
U.S. treasuries and agencies | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents available for sale		9,962
U.S. treasuries and agencies | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents available for sale		$ 0

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Derivative instruments and hedging activities - Narrative (Details)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2020 USD ($) country	Sep. 30, 2019	Sep. 30, 2020 USD ($) country	Sep. 30, 2019	Dec. 31, 2019 USD ($)
Derivative [Line Items]
Number of countries for which entity has operations | country	45		45
Percentage of sales outside of the Americas during the period	59.00%	58.00%	59.00%	60.00%
Period of protection against the reduction in value caused by a fluctuation, minimum (in number of years)			1 year
Period of protection against the reduction in value caused by a fluctuation, maximum (in number of years)			3 years
Derivatives, contractual maturities (in months)			36 months		36 months
Foreign currency forward contracts notional amount	$ 532,643,000		$ 532,643,000		$ 383,288,000
Cost of Sales
Derivative [Line Items]
Gains (losses) expected to be reclassified from AOCI to earnings			(1,000,000.0)
Forward Contracts | Net Sales
Derivative [Line Items]
Gains (losses) expected to be reclassified from AOCI to earnings			(600,000)
Forward Contracts | Operating Expenses
Derivative [Line Items]
Gains (losses) expected to be reclassified from AOCI to earnings			(1,400,000)
Other Derivatives
Derivative [Line Items]
Foreign currency forward contracts notional amount	$ 87,000,000		$ 87,000,000		$ 41,000,000
Maximum | Forward Contracts
Derivative [Line Items]
Percentage of derivative risk hedged	100.00%		100.00%
Duration of derivative contracts entered into by the entity to hedge risk of loss			40 months
Maximum | Other Derivatives
Derivative [Line Items]
Percentage of derivative risk hedged	90.00%		90.00%
Duration of derivative contracts entered into by the entity to hedge risk of loss			90 days

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Derivative instruments and hedging activities - Summary Of Notional Amounts Of Derivative Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Total forward contracts notional amount	$ 532,643	$ 383,288
British pound
Derivative [Line Items]
Total forward contracts notional amount	23,251	13,988
Chinese yuan
Derivative [Line Items]
Total forward contracts notional amount	57,943	32,970
Euro
Derivative [Line Items]
Total forward contracts notional amount	209,385	130,122
Hungarian forint
Derivative [Line Items]
Total forward contracts notional amount	89,962	95,228
Japanese yen
Derivative [Line Items]
Total forward contracts notional amount	83,503	53,527
Korean won
Derivative [Line Items]
Total forward contracts notional amount	26,918	24,728
Malaysian ringgit
Derivative [Line Items]
Total forward contracts notional amount	$ 41,681	$ 32,725

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Derivative instruments and hedging activities - Fair Value Of Derivative Instruments On Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Derivative assets	$ 5,364	$ 8,209
Derivative liability	(10,776)	(2,872)
Derivatives Designated As Hedging Instruments
Derivatives, Fair Value [Line Items]
Derivative assets	4,953	8,009
Derivative liability	(9,535)	(2,440)
Derivatives Designated As Hedging Instruments | Foreign Exchange Contract - Short-Term | Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivative assets	2,314	7,039
Derivatives Designated As Hedging Instruments | Foreign Exchange Contract - Short-Term | Other current liabilities
Derivatives, Fair Value [Line Items]
Derivative liability	(5,305)	(2,089)
Derivatives Designated As Hedging Instruments | Foreign Exchange Contracts - Long-Term | Other long-term assets
Derivatives, Fair Value [Line Items]
Derivative assets	2,639	970
Derivatives Designated As Hedging Instruments | Foreign Exchange Contracts - Long-Term | Other long-term liabilities
Derivatives, Fair Value [Line Items]
Derivative liability	(4,230)	(351)
Derivatives Not Designated As Hedging Instruments
Derivatives, Fair Value [Line Items]
Derivative assets	411	200
Derivative liability	(1,241)	(432)
Derivatives Not Designated As Hedging Instruments | Foreign Exchange Contract - Short-Term | Prepaid expenses and other current assets
Derivatives, Fair Value [Line Items]
Derivative assets	411	200
Derivatives Not Designated As Hedging Instruments | Foreign Exchange Contract - Short-Term | Other current liabilities
Derivatives, Fair Value [Line Items]
Derivative liability	$ (1,241)	$ (432)

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Derivative instruments and hedging activities - Effect Of Derivative Instruments On Consolidated Statements Of Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Derivatives Designated As Hedging Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in OCI on Derivative	$ (9,531)	$ 1,627	$ (10,128)	$ 1,359
Gain or (Loss) Reclassified from Accumulated OCI into Income	(380)	3,003	2,429	7,312
Derivatives Designated As Hedging Instruments | Foreign Exchange Forward | Net Sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in OCI on Derivative	(12,524)	6,736	(6,800)	7,186
Gain or (Loss) Reclassified from Accumulated OCI into Income	334	3,291	5,594	7,687
Derivatives Designated As Hedging Instruments | Foreign Exchange Forward | Cost of Sales
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in OCI on Derivative	1,849	(2,946)	(1,898)	(3,386)
Gain or (Loss) Reclassified from Accumulated OCI into Income	(448)	(176)	(1,817)	(217)
Derivatives Designated As Hedging Instruments | Foreign Exchange Forward | Operating Expenses
Derivative Instruments, Gain (Loss) [Line Items]
Gain or (Loss) Recognized in OCI on Derivative	1,144	(2,163)	(1,430)	(2,441)
Gain or (Loss) Reclassified from Accumulated OCI into Income	(266)	(112)	(1,348)	(158)
Derivatives Not Designated As Hedging Instruments
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income	(267)	287	(163)	(82)
Derivatives Not Designated As Hedging Instruments | Foreign Exchange Forward
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Income	$ (267)	$ 287	$ (163)	$ (82)

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Inventories, net (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Inventory Disclosure [Abstract]
Raw materials	$ 110,773	$ 110,078
Work-in-process	12,235	10,613
Finished goods	86,550	79,719
Total	$ 209,558	$ 200,410

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Intangible assets and goodwill, net - Schedule Of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 339,693	$ 304,788
Accumulated Amortization	(156,626)	(220,705)
Net Carrying Amount	183,067	84,083
Capitalized software development costs
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	123,483	132,789
Accumulated Amortization	(86,096)	(76,910)
Net Carrying Amount	37,387	55,879
Acquired technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	105,008	91,900
Accumulated Amortization	(14,726)	(87,917)
Net Carrying Amount	90,282	3,983
Patents
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	36,531	35,609
Accumulated Amortization	(26,008)	(23,993)
Net Carrying Amount	10,523	11,616
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	74,671	44,490
Accumulated Amortization	(29,796)	(31,885)
Net Carrying Amount	$ 44,875	$ 12,605

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Intangible assets and goodwill, net - Narrative (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) reporting_unit segment	Sep. 30, 2019 USD ($)
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 14,200,000	$ 9,200,000	$ 32,900,000	$ 27,300,000
Number of operating segments | segment			1
Number of reporting units | reporting_unit			1
Goodwill impairment			$ 0
Capitalized Software Development Costs
Finite-Lived Intangible Assets [Line Items]
Capitalized Computer Software, Impairments	(200,000)
Software development costs capitalized		2,800,000	3,100,000	7,500,000
Amortization expense of capitalized software development costs	6,900,000	7,100,000	21,600,000	20,900,000
Costs related to stock based compensation	$ 100,000	$ 200,000	$ 300,000	$ 300,000
Minimum | Capitalized Software Development Costs
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization period (in years)			3 years
Minimum | Acquired Technology
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization period (in years)			3 years
Minimum | Patents
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization period (in years)			10 years
Maximum | Capitalized Software Development Costs
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization period (in years)			6 years
Maximum | Acquired Technology
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization period (in years)			8 years
Maximum | Patents
Finite-Lived Intangible Assets [Line Items]
Intangible assets amortization period (in years)			17 years

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Intangible assets and goodwill, net - Schedule of Goodwill (Details) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Goodwill [Roll Forward]
Balance as of December 31, 2019	$ 262,242
Acquisition		$ 227,280
Foreign currency translation impact	4,800
Divestiture	(7,221)
Balance as of September 30, 2020 (unaudited)	$ 487,101	$ 262,242

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Leases - Summary of Components of Lease Expense and Other Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Lessee, Lease, Description [Line Items]
Operating lease cost	$ 4,869	$ 5,456	$ 15,941	$ 16,951
Minimum
Lessee, Lease, Description [Line Items]
Operating leases, weighted average remaining lease term (in years)			1 year
Maximum
Lessee, Lease, Description [Line Items]
Operating leases, weighted average remaining lease term (in years)			94 years
Operating lease, renewal term (in years)	9 years		9 years

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Leases - Maturities of Operating Lease Liabilities (Details) $ in Thousands	Sep. 30, 2020 USD ($)
Leases [Abstract]
2020 (Excluding the nine months ended September 30, 2020)	$ 7,012
2020	17,340
2021	11,465
2022	8,229
2023	7,062
Thereafter	14,161
Total future minimum lease payments	65,269
Less imputed interest	(11,325)
Total	$ 53,944

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Income taxes (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Operating Loss Carryforwards [Line Items]
Valuation allowance	$ 102,000,000		$ 102,000,000		$ 86,000,000
Unrecognized tax benefits	6,900,000		6,900,000		$ 6,700,000
Unrecognized tax benefits, period increase (decrease)	0
Reasonable possibility of future tax benefits	2,900,000		2,900,000
Accrued interest related to uncertain tax positions	$ 800,000		$ 800,000
Effective income tax rate	(11.00%)	23.00%	24.00%	18.00%
U.S. federal statutory rate	21.00%	21.00%		21.00%
Hungary statutory tax rate			9.00%
Income tax benefit of tax holiday (in usd per share)	$ 0.01	$ 0.01	$ 0.01	$ 0.02
Hungary
Operating Loss Carryforwards [Line Items]
Foreign income tax benefit	$ 100,000	$ 1,600,000	$ 300,000	$ 4,200,000
Malaysia
Operating Loss Carryforwards [Line Items]
Income tax benefit of tax holiday, amount	$ 200,000	$ 1,800,000	$ 400,000	$ 3,100,000

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Comprehensive income (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	$ 1,176,350	$ 1,238,358
Current-period other comprehensive income (loss)	(1,509)	862
Reclassified from accumulated OCI into income	(2,429)	(7,312)
Income tax expense (benefit)	(2,268)	355
Ending Balance	1,239,198	1,162,161
Currency translation adjustment
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(25,831)	(22,485)
Current-period other comprehensive income (loss)	6,507	(9,303)
Reclassified from accumulated OCI into income	0	0
Income tax expense (benefit)	0	0
Ending Balance	(19,324)	(31,788)
Investments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(85)	(1,308)
Current-period other comprehensive income (loss)	(317)	1,494
Reclassified from accumulated OCI into income	0	0
Income tax expense (benefit)	(45)	(11)
Ending Balance	(357)	197
Derivative instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	4,846
Current-period other comprehensive income (loss)	(7,699)
Reclassified from accumulated OCI into income	(2,429)
Income tax expense (benefit)	(2,223)
Ending Balance	(3,059)
Derivative instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance		6,862
Current-period other comprehensive income (loss)		8,671
Reclassified from accumulated OCI into income		(7,312)
Income tax expense (benefit)		366
Ending Balance		7,855
Accumulated other comprehensive income/(loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning Balance	(21,070)	(16,931)
Ending Balance	$ (22,740)	$ (23,736)

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Authorized shares of common and preferred stock and stock-based compensation plans (Details) - $ / shares			3 Months Ended		9 Months Ended
	Jan. 01, 2019	May 14, 2013	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	May 05, 2020	Dec. 31, 2019	May 14, 2019	May 12, 2015	May 11, 2010	May 31, 2005	Jan. 21, 2004
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional number of shares reserved for issuance (in shares)		180,000,000
Common stock, authorized (in shares)		360,000,000	360,000,000		360,000,000			360,000,000
Common and preferred stock shares authorized (in shares)		365,000,000
Preferred stock, authorized (in shares)		5,000,000	5,000,000		5,000,000			5,000,000
Preferred stock, par value per share (in usd per share)		$ 0.01	$ 0.01		$ 0.01			$ 0.01
Common stock, par value per share (in usd per share)		$ 0.01	$ 0.01		$ 0.01			$ 0.01
Number of shares reserved for issuance (in shares)										2,518,416	3,362,304
Preferred stock, issued (in shares)			0		0			0
Preferred stock, outstanding (in shares)			0		0			0
Common stock repurchased (in shares)			446,502	1,056,078	1,114,701	3,205,676
Common stock repurchased, average cost per share (in usd per share)			$ 34.86	$ 42.42	$ 35.21	$ 42.79
Authorized common stock available for repurchase (in shares)			1,885,299		1,885,299
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance-based stock units, vested in period (in shares)					144,647	92,809
Share-based compensation arrangement by share-based payment award, award requisite service period	3 years				3 years
Performance-based stock units, weighted average grant date fair value (in usd per share)			$ 61.00	$ 57.46	$ 61.00	$ 57.46
Incentive Plan (2005) | Restricted Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for issuance (in shares)												4,050,000
Incentive Plan (2005) | Restricted Stock Plan | One to three year vesting period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)					3 years
Incentive Plan (2005) | Restricted Stock Plan | Three to Five year vesting period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)					5 years
Incentive Plan (2005) | Restricted Stock Plan | Ten year vesting period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)					10 years
Incentive Plan (2010)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for issuance (in shares)										2,518,416
Incentive Plan (2010) | Restricted Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, authorized (in shares)											3,000,000
Incentive Plan (2010) | Restricted Stock Plan | One to three year vesting period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)					3 years
Incentive Plan (2010) | Restricted Stock Plan | Three to Five year vesting period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)					5 years
Incentive Plan (2010) | Restricted Stock Plan | Ten year vesting period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)					10 years
Incentive Plan (2015)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for issuance (in shares)							567,142			3,000,000
Shares available for grant under 2015 restricted stock plan (in shares)							567,142
Incentive Plan (2015) | Restricted Stock Plan | One to three year vesting period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)					3 years
Incentive Plan (2015) | Restricted Stock Plan | Three to Five year vesting period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)					5 years
Incentive Plan (2015) | Restricted Stock Plan | Ten year vesting period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)					10 years
Incentive Plan (2015) | Restricted Stock Plan | Four year vesting period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)					4 years
Incentive Plan (2020)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares reserved for issuance (in shares)							4,500,000
Shares available for grant under 2015 restricted stock plan (in shares)			5,141,465		5,141,465
Incentive Plan (2020) | Restricted Stock Plan | One to three year vesting period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)					1 year
Incentive Plan (2020) | Restricted Stock Plan | Three to Five year vesting period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)					3 years
Incentive Plan (2020) | Restricted Stock Plan | Four year vesting period
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period (in years)					4 years
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, authorized (in shares)									3,000,000
Percentage of the lower of the market related to purchase of common stock			85.00%		85.00%
Maximum employee subscription rate			15.00%		15.00%
Common stock reserved for future issuance under employee stock purchase plan (in shares)			3,321,597		3,321,597
Shares issued under employee stock purchase plan (in shares)					764,173
Weighted average purchase price of employees' purchase rights (in usd per share)					$ 32.67
Series A Preferred Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock, authorized (in shares)													750,000

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Authorized shares of common and preferred stock and stock-based compensation plans - Schedule of Performance Activity (Details) - Performance Shares - numberOfSimulations	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of simulations	100,000	100,000
Expected volatility	27.41%	26.08%
Expected life in years	2 years 11 months 1 day	2 years 11 months 8 days
Risk-free interest rate	1.38%	2.52%
Dividend yield	2.32%	1.96%

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Segment and geographic information (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) region segment	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of operating segments | segment			1
Number of geographic regions company operates in | region			3
Total revenue	$ 308,124	$ 340,442	$ 918,834	$ 985,747
Property and equipment, net	253,073		253,073		$ 243,717
Outside The United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Total revenue	187,000	$ 208,000	564,000	$ 617,000
Property and equipment, net	$ 135,000		$ 135,000		$ 130,000

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Debt (Details) - USD ($)	Jun. 12, 2020	Sep. 30, 2020
Letter of Credit | Line of Credit | Wells Fargo Securities, LLC
Line of Credit Facility [Line Items]
Unsecured revolving line of credit	$ 10,000,000
Revolving Credit Facility | Line of Credit | Wells Fargo Securities, LLC
Line of Credit Facility [Line Items]
Unsecured revolving line of credit	145,000,000
Line of credit, accordion feature, higher borrowing capacity feature	105,000,000
Secured Revolving Loan Facility | Line of Credit | Wells Fargo Securities, LLC
Line of Credit Facility [Line Items]
Unsecured revolving line of credit	75,000,000
Secured Term Loan Facility | Line of Credit | Wells Fargo Securities, LLC
Line of Credit Facility [Line Items]
Unsecured revolving line of credit	$ 70,000,000
Line of credit facility, expiration period	60 days
2020 term loan (effective interest rate of 3.0%)
Line of Credit Facility [Line Items]
Debt instrument, interest rate, stated percentage		3.00%
Credit Agreement
Line of Credit Facility [Line Items]
Debt instrument, covenant, leverage ratio, maximum	2.75
Debt instrument, covenant, liquidity ratio leverage, minimum	1.25
Minimum | Credit Agreement | Revolving Credit Facility
Line of Credit Facility [Line Items]
Quarterly commitment fee	0.375%
Maximum | Credit Agreement | Revolving Credit Facility
Line of Credit Facility [Line Items]
Quarterly commitment fee	0.50%
Base Rate | Revolving Credit Facility
Line of Credit Facility [Line Items]
Debt instrument, interest rate, stated percentage	0.50%
Base Rate | Secured Term Loan Facility
Line of Credit Facility [Line Items]
Debt instrument, interest rate, stated percentage	1.25%
Base Rate | Minimum | Credit Agreement | Revolving Credit Facility
Line of Credit Facility [Line Items]
Variable interest rate spread	1.25%
Base Rate | Maximum | Credit Agreement | Revolving Credit Facility
Line of Credit Facility [Line Items]
Variable interest rate spread	1.75%
London Interbank Offered Rate | Revolving Credit Facility
Line of Credit Facility [Line Items]
Debt instrument, interest rate, stated percentage	1.00%
London Interbank Offered Rate | Minimum | Credit Agreement | Revolving Credit Facility
Line of Credit Facility [Line Items]
Variable interest rate spread	2.25%
Quarterly commitment fee	0.375%
Debt instrument, default interest rate	2.00%
London Interbank Offered Rate | Maximum | Credit Agreement | Revolving Credit Facility
Line of Credit Facility [Line Items]
Variable interest rate spread	2.75%
Quarterly commitment fee	0.50%

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Debt - Schedule of Long-term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Total Debt	$ 89,125	$ 0
Less: Unamortized debt issuance costs	(1,336)	0
Less: Current Portion of Total Debt	(3,500)	0
Total Debt, non-current	$ 84,289	0
2020 term loan (effective interest rate of 3.0%)
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	3.00%
Total Debt	$ 69,125	0
2020 revolving loan facility (effective interest rate of 3.0%)
Debt Instrument [Line Items]
Total Debt	$ 20,000	$ 0

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Commitments and contingencies - Schedule Of Warranty Reserve (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Movement in Standard Product Warranty Accrual [Roll Forward]
Balance at the beginning of the period	$ 2,561	$ 3,173
Accruals for warranties issued during the period	1,824	1,665
Accruals related to pre-existing warranties	405	(441)
Settlements made (in cash or in kind) during the period	(2,088)	(1,899)
Balance at the end of the period	$ 2,702	$ 2,498

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Commitments and contingencies - Narrative (Details) $ in Millions	9 Months Ended
	Sep. 30, 2020 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Limited warranty on most hardware products (in number of years)	1 year
Non-cancelable purchase commitments	$ 5.2

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Restructuring - Schedule of Restructuring Related Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Restructuring Cost and Reserve [Line Items]
Total restructuring and other related costs	$ 658	$ 4,017	$ 13,461	$ 11,160
Cost of sales
Restructuring Cost and Reserve [Line Items]
Total restructuring and other related costs	(13)	0	7	0
Research and development
Restructuring Cost and Reserve [Line Items]
Total restructuring and other related costs	38	34	4,716	690
Sales and marketing
Restructuring Cost and Reserve [Line Items]
Total restructuring and other related costs	512	2,993	8,055	7,958
General and administrative
Restructuring Cost and Reserve [Line Items]
Total restructuring and other related costs	$ 121	$ 990	$ 683	$ 2,512

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Restructuring - Schedule of Restructuring Reserve (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Restructuring Reserve [Roll Forward]
Balance as of December 31, 2018			$ 9,527
Income statement expense	$ 658	$ 4,017	13,461	$ 11,160
Cash payments			(19,651)
Balance as of September 30, 2020	$ 3,337		$ 3,337

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Restructuring - Narrative (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Restructuring and Related Activities [Abstract]
Restructuring accrual	$ 3,337	$ 9,527

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Acquisitions - Narrative (Details) - USD ($)			3 Months Ended		9 Months Ended
	Jul. 02, 2020	Jun. 30, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Jan. 15, 2020
Business Acquisition [Line Items]
Proceeds from term loan					$ 70,000,000	$ 0
Business acquisition, transaction costs							$ 1,000,000
Secured Term Loan Facility | Wells Fargo Securities, LLC | Line of Credit
Business Acquisition [Line Items]
Proceeds from term loan		$ 70,000,000
OptimalPlus Ltd
Business Combinations [Abstract]
Business acquisition, percentage of voting interests acquired	100.00%
Consideration Transferred	$ 352,642,000
Business Acquisition [Line Items]
Business acquisition, percentage of voting interests acquired	100.00%
Business acquisition, transaction costs			$ 7,000,000		7,000,000
Cash acquired from acquisition	$ 18,000,000
Business combination, deferred cash consideration	$ 12,000,000
Net sales			309,142,000	$ 348,401,000	929,381,000	1,009,102,000
Net (loss) attributable to NI			$ 4,907,000	$ 42,522,000	$ 123,766,000	$ 65,796,000

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Acquisitions - Schedule of Business Acquisition, by Acquisition (Details) - USD ($) $ in Thousands	Jul. 02, 2020	Sep. 30, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Intangible assets	$ 127,600
Goodwill		$ 487,101	$ 262,242
OptimalPlus Ltd
Business Acquisition [Line Items]
Consideration Transferred	352,642
Cash	17,661
Goodwill	227,280
Contract assets	15,454
Deferred revenue	(7,341)
Accounts receivable	4,927
Other assets and liabilities	(2,545)
Deferred tax liabilities	(30,394)
Net assets acquired	$ 352,642

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Acquisitions - Schedule of Recognized Identified Assets Acquired and Liabilities Assumed (Details) $ in Thousands	Jul. 02, 2020 USD ($)
Customer relationships
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life	5 years
Acquired technology
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life	6 years
In-process research and development (IPR&D)
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life	6 years
Other | Minimum
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life	3 years
Other | Maximum
Business Acquisition [Line Items]
Acquired finite-lived intangible assets, weighted average useful life	5 years
OptimalPlus Ltd
Business Acquisition [Line Items]
Estimated Fair Value	$ 127,600
OptimalPlus Ltd | Customer relationships
Business Acquisition [Line Items]
Estimated Fair Value	30,100
OptimalPlus Ltd | Acquired technology
Business Acquisition [Line Items]
Estimated Fair Value	81,400
OptimalPlus Ltd | In-process research and development (IPR&D)
Business Acquisition [Line Items]
Estimated Fair Value	10,200
OptimalPlus Ltd | Other
Business Acquisition [Line Items]
Estimated Fair Value	$ 5,900

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Acquisitions - Business Combination, Pro Forma Information (Details) - OptimalPlus Ltd - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Business Acquisition [Line Items]
Net sales	$ 309,142	$ 348,401	$ 929,381	$ 1,009,102
Net (loss) attributable to NI	$ 4,907	$ 42,522	$ 123,766	$ 65,796

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Subsequent events (Details)	Oct. 30, 2020 USD ($)	Oct. 29, 2020 USD ($)	Jun. 12, 2020	Oct. 28, 2020 $ / shares
Subsequent Event
Subsequent Event [Line Items]
Dividend payable (in usd per share) | $ / shares				$ 0.26
Workforce reduction, percent		9.00%
Subsequent Event | Minimum
Subsequent Event [Line Items]
Workforce reduction, term		9 months
Expected restructuring costs		$ 22,000,000
Subsequent Event | Maximum
Subsequent Event [Line Items]
Workforce reduction, term		12 months
Expected restructuring costs		$ 28,000,000
Credit Agreement
Subsequent Event [Line Items]
Debt instrument, covenant, leverage ratio, maximum			2.75
Revolving Credit Facility | Credit Agreement | Minimum
Subsequent Event [Line Items]
Quarterly commitment fee			0.375%
Revolving Credit Facility | Credit Agreement | Maximum
Subsequent Event [Line Items]
Quarterly commitment fee			0.50%
Revolving Credit Facility | Credit Agreement | London Interbank Offered Rate | Minimum
Subsequent Event [Line Items]
Variable interest rate spread			2.25%
Quarterly commitment fee			0.375%
Revolving Credit Facility | Credit Agreement | London Interbank Offered Rate | Maximum
Subsequent Event [Line Items]
Variable interest rate spread			2.75%
Quarterly commitment fee			0.50%
Revolving Credit Facility | Credit Agreement | Base Rate | Minimum
Subsequent Event [Line Items]
Variable interest rate spread			1.25%
Revolving Credit Facility | Credit Agreement | Base Rate | Maximum
Subsequent Event [Line Items]
Variable interest rate spread			1.75%
Revolving Credit Facility | Credit Agreement | Subsequent Event
Subsequent Event [Line Items]
Unsecured revolving line of credit	$ 115,000,000	$ 75,000,000
Debt instrument, covenant, leverage ratio, maximum	2.25
Debt instrument, installment payments, percentage of the principal amount	1.25%
Revolving Credit Facility | Credit Agreement | Subsequent Event | Minimum
Subsequent Event [Line Items]
Quarterly commitment fee	0.25%	0.375%
Revolving Credit Facility | Credit Agreement | Subsequent Event | Maximum
Subsequent Event [Line Items]
Quarterly commitment fee	0.375%	0.50%
Revolving Credit Facility | Credit Agreement | Subsequent Event | London Interbank Offered Rate | Minimum
Subsequent Event [Line Items]
Variable interest rate spread	1.50%
Revolving Credit Facility | Credit Agreement | Subsequent Event | London Interbank Offered Rate | Maximum
Subsequent Event [Line Items]
Variable interest rate spread	2.00%
Revolving Credit Facility | Credit Agreement | Subsequent Event | Base Rate | Minimum
Subsequent Event [Line Items]
Variable interest rate spread	0.50%
Revolving Credit Facility | Credit Agreement | Subsequent Event | Base Rate | Maximum
Subsequent Event [Line Items]
Variable interest rate spread	1.00%
Revolving Credit Facility | Secured Term Loan Facility | Subsequent Event
Subsequent Event [Line Items]
Long-term line of credit	$ 70,000,000
Line of credit facility, accordion feature, increase limit	$ 100,000,000