10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

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

For the quarterly period ended March 29, 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 No. 001-06462

TERADYNE, INC.

(Exact name of registrant as specified in its charter)

Massachusetts	04-2272148
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)
600 Riverpark Drive, North Reading, Massachusetts	01864
(Address of Principal Executive Offices)	(Zip Code)

978-370-2700

(Registrant’s Telephone Number, Including Area Code)

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

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common Stock, par value $0.125 per share	TER	Nasdaq Stock Market LLC

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 the 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, 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 (check one):

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

The number of shares outstanding of the registrant’s only class of Common Stock as of April 27, 2020 was 165,768,292 shares.

TERADYNE, INC.

INDEX

		Page No.
	PART I. FINANCIAL INFORMATION
Item 1.	Financial Statements (Unaudited):
	Condensed Consolidated Balance Sheets as of March 29, 2020 and December 31, 2019		1
	Condensed Consolidated Statements of Operations for the Three Months Ended March 29, 2020 and March 31, 2019		2
	Condensed Consolidated Statements of Comprehensive Income for the Three Months Ended March 29, 2020 and March 31, 2019		3
	Condensed Consolidated Statements of Shareholders’ Equity for the Three Months Ended March 29, 2020 and March 31, 2019		4
	Condensed Consolidated Statements of Cash Flows for the Three Months Ended March 29, 2020 and March 31, 2019		5
	Notes to Condensed Consolidated Financial Statements		6
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations		27
Item 3.	Quantitative and Qualitative Disclosures about Market Risk		36
Item 4.	Controls and Procedures		37
	PART II. OTHER INFORMATION
Item 1.	Legal Proceedings		38
Item 1A.	Risk Factors		38
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds		39
Item 4.	Mine Safety Disclosures		40
Item 6.	Exhibits		41

PART I

Item 1: Financial Statements

TERADYNE, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(Unaudited)

	March 29, 2020			December 31, 2019
	(in thousands, except per share information)
ASSETS
Current assets:
Cash and cash equivalents	$	593,494		$	773,924
Marketable securities		211,001			137,303
Accounts receivable, less allowance for doubtful accounts of $1,813 and $1,736 at March 29, 2020 and December 31, 2019, respectively		487,365			362,368
Inventories, net		182,978			196,691
Prepayments and other current assets		227,740			188,598
Total current assets		1,702,578			1,658,884
Property, plant and equipment, net		332,241			320,216
Operating lease right-of-use assets, net		58,808			57,539
Marketable securities		100,513			104,490
Deferred tax assets		74,493			75,185
Retirement plans assets		18,229			18,457
Other assets		9,272			10,332
Acquired intangible assets, net		114,321			125,480
Goodwill		409,933			416,431
Total assets	$	2,820,388		$	2,787,014
LIABILITIES
Current liabilities:
Accounts payable	$	129,633		$	126,617
Accrued employees’ compensation and withholdings		119,226			163,883
Deferred revenue and customer advances		98,815			104,876
Other accrued liabilities		87,274			70,871
Operating lease liabilities		19,591			19,476
Contingent consideration		662			9,106
Income taxes payable		58,760			44,200
Total current liabilities		513,961			539,029
Retirement plans liabilities		125,970			134,471
Long-term deferred revenue and customer advances		50,791			45,974
Long-term other accrued liabilities		19,941			19,535
Long-term contingent consideration		19,810			30,599
Deferred tax liabilities		11,628			14,070
Long-term operating lease liabilities		46,328			45,849
Long-term incomes taxes payable		82,820			82,642
Debt		398,466			394,687
Total liabilities		1,269,715			1,306,856
Commitments and contingencies (See Note Q)
SHAREHOLDERS’ EQUITY
Common stock, $0.125 par value, 1,000,000 shares authorized, 165,938 and 166,410 shares issued and outstanding at March 29, 2020 and December 31, 2019, respectively		20,742			20,801
Additional paid-in capital		1,721,367			1,720,129
Accumulated other comprehensive loss		(27,113	)		(18,854	)
Accumulated deficit		(164,323	)		(241,918	)
Total shareholders’ equity		1,550,673			1,480,158
Total liabilities and shareholders’ equity	$	2,820,388		$	2,787,014

The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s

Annual Report on Form 10-K for the year ended December 31, 2019, are an integral part of the condensed

consolidated financial statements.

1

TERADYNE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(Unaudited)

	For the Three Months Ended
	March 29, 2020			March 31, 2019
	(in thousands, except per share amounts)
Revenues:
Products	$	610,906		$	393,442
Services		93,449			100,657
Total revenues		704,355			494,099
Cost of revenues:
Cost of products		259,996			165,368
Cost of services		38,809			41,096
Total cost of revenues (exclusive of acquired intangible assets amortization shown separately below)		298,805			206,464
Gross profit		405,550			287,635
Operating expenses:
Selling and administrative		111,388			102,013
Engineering and development		85,159			76,791
Acquired intangible assets amortization		9,891			10,634
Restructuring and other		(7,606	)		5,112
Total operating expenses		198,832			194,550
Income from operations		206,718			93,085
Non-operating (income) expense:
Interest income		(2,751	)		(4,989	)
Interest expense		5,551			5,520
Other (income) expense, net		6,849			(1,425	)
Income before income taxes		197,069			93,979
Income tax provision (benefit)		20,878			(15,159	)
Net income	$	176,191		$	109,138
Net income per common share:
Basic	$	1.06		$	0.63
Diluted	$	0.97		$	0.62
Weighted average common shares—basic		166,589			173,532
Weighted average common shares—diluted		180,736			176,972
Cash dividend declared per common share	$	0.10		$	0.09

The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s

Annual Report on Form 10-K for the year ended December 31, 2019, are an integral part of the condensed

consolidated financial statements.

2

TERADYNE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Unaudited)

	For the Three Months Ended
	March 29, 2020			March 31, 2019
	(in thousands)
Net income	$	176,191		$	109,138
Other comprehensive income, net of tax:
Foreign currency translation adjustment, net of tax of $0, $0, respectively		(8,779	)		(4,659	)
Available-for-sale marketable securities:
Unrealized gains on debt securities arising during period, net of tax of $187, $577, respectively		1,037			2,100
Less: Reclassification adjustment for gains included in net income, net of tax of $(145), $(20), respectively		(515	)		(70	)
		522			2,030
Defined benefit pension and post-retirement plans:
Amortization of prior service benefit included in net periodic pension and post-retirement benefit, net of tax of $0, $(11), respectively		(2	)		(37	)
Other comprehensive loss		(8,259	)		(2,666	)
Comprehensive income	$	167,932		$	106,472

The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s

Annual Report on Form 10-K for the year ended December 31, 2019, are an integral part of the condensed

consolidated financial statements.

3

TERADYNE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY

(Unaudited)

	Common Stock Shares			Common Stock Par Value			Additional Paid-in Capital			Accumulated Other Comprehensive Loss			Accumulated Deficit			Total Shareholders’ Equity
	(in thousands)
For the Three Months Ended March 29, 2020
Balance, December 31, 2019		166,410		$	20,801		$	1,720,129		$	(18,854	)	$	(241,918	)	$	1,480,158
Net issuance of common stock under stock-based plans		872			109			(10,045	)								(9,936	)
Stock-based compensation expense								11,283									11,283
Repurchase of common stock		(1,344	)		(168	)								(81,897	)		(82,065	)
Cash dividends ($0.10 per share)														(16,699	)		(16,699	)
Net income														176,191			176,191
Other comprehensive loss											(8,259	)					(8,259	)
Balance, March 29, 2020		165,938			20,742			1,721,367			(27,113	)		(164,323	)		1,550,673
For the Three Months Ended March 31, 2019
Balance, December 31, 2018		175,522		$	21,940		$	1,671,645		$	(13,040	)	$	(158,191	)	$	1,522,354
Net issuance of common stock under stock-based plans		1,287			161			(210	)								(49	)
Stock-based compensation expense								8,562									8,562
Repurchase of common stock		(4,456	)		(557	)								(150,913	)		(151,470	)
Cash dividends ($0.09 per share)														(15,641	)		(15,641	)
Net income														109,138			109,138
Other comprehensive loss											(2,666	)					(2,666	)
Balance, March 31, 2019		172,353		$	21,544		$	1,679,997		$	(15,706	)	$	(215,607	)	$	1,470,228

The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s

Annual Report on Form 10-K for the year ended December 31, 2019, are an integral part of the condensed

consolidated financial statements.

4

TERADYNE, INC.

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Unaudited)

	For the Three Months Ended
	March 29, 2020			March 31, 2019
	(in thousands)
Cash flows from operating activities:
Net income	$	176,191		$	109,138
Adjustments to reconcile net income from operations to net cash provided by operating activities:
Depreciation		18,489			16,651
Amortization		13,391			12,942
Stock-based compensation		10,460			9,474
Provision for excess and obsolete inventory		4,057			2,397
Deferred taxes		(1,825	)		1,206
Contingent consideration adjustment		(10,020	)		2,970
Losses (gains) on investments		4,657			(2,828	)
Other		503			219
Changes in operating assets and liabilities, net of businesses acquired:
Accounts receivable		(126,779	)		(41,706	)
Inventories		15,818			(2,917	)
Prepayments and other assets		(39,620	)		(18,648	)
Accounts payable and other liabilities		(35,323	)		(53,323	)
Deferred revenue and customer advances		(913	)		6,455
Retirement plans contributions		(1,262	)		(1,210	)
Income taxes		15,278			(22,804	)
Net cash provided by operating activities		43,102			18,016
Cash flows from investing activities:
Purchases of property, plant and equipment		(36,700	)		(25,711	)
Purchases of marketable securities		(187,119	)		(375,184	)
Proceeds from maturities of marketable securities		98,457			141,201
Proceeds from sales of marketable securities		15,005			5,440
Acquisition of businesses, net of cash acquired		149			(6,970	)
Proceeds from life insurance		—			273
Net cash used for investing activities		(110,208	)		(260,951	)
Cash flows from financing activities:
Issuance of common stock under stock purchase and stock option plans		12,752			14,268
Repurchase of common stock		(79,039	)		(156,468	)
Dividend payments		(16,686	)		(15,627	)
Payments related to net settlement of employee stock compensation awards		(22,070	)		(14,318	)
Payments of contingent consideration		(8,852	)		(27,615	)
Net cash used for financing activities		(113,895	)		(199,760	)
Effects of exchange rate changes on cash and cash equivalents		571			(329	)
Decrease in cash and cash equivalents		(180,430	)		(443,024	)
Cash and cash equivalents at beginning of period		773,924			926,752
Cash and cash equivalents at end of period	$	593,494		$	483,728

The accompanying notes, together with the Notes to Consolidated Financial Statements included in Teradyne’s

Annual Report on Form 10-K for the year ended December 31, 2019, are an integral part of the condensed

consolidated financial statements.

5

TERADYNE, INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

(Unaudited)

A. THE COMPANY

Teradyne, Inc. (“Teradyne”) is a leading global supplier of automation equipment for test and industrial applications. Teradyne designs, develops, manufactures and sells automatic test systems used to test semiconductors, wireless products, data storage and complex electronics systems in the consumer electronics, wireless, automotive, industrial, computing, communications, and aerospace and defense industries. Teradyne’s industrial automation products include collaborative robotic arms, autonomous mobile robots, and advanced robotic control software used by global manufacturing and light industrial customers to improve quality, increase manufacturing and material handling efficiency and decrease manufacturing costs. Teradyne’s automatic test equipment and industrial automation products and services include:

• semiconductor test (“Semiconductor Test”) systems;

• defense/aerospace (“Defense/Aerospace”) test instrumentation and systems, storage test (“Storage Test”) systems, and circuit-board test and inspection (“Production Board Test”) systems (collectively these products represent “System Test”);

• industrial automation (“Industrial Automation”) products; and

• wireless test (“Wireless Test”) systems.

B. ACCOUNTING POLICIES

Basis of Presentation

The consolidated interim financial statements include the accounts of Teradyne and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated. These interim financial statements are unaudited and reflect all normal recurring adjustments that are, in the opinion of management, necessary for the fair statement of such interim financial statements. Certain prior year amounts were reclassified to conform to the current year presentation. The December 31, 2019 condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America.

The accompanying financial information should be read in conjunction with the consolidated financial statements and notes thereto contained in Teradyne’s Annual Report on Form 10-K, filed with the U.S. Securities and Exchange Commission (“SEC”) on March 2, 2020, for the year ended December 31, 2019.

Preparation of Financial Statements and Use of Estimates

The preparation of consolidated financial statements requires management to make estimates and judgments that affect the amounts reported in the financial statements. Due to the COVID-19 pandemic, there has been uncertainty and disruption in the global economy and our markets. Teradyne is not aware of any specific event or circumstance that would require an update to its estimates or judgments or a revision of the carrying value of its assets or liabilities as of May 4, 2020, 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 significantly from these estimates under different assumptions or conditions. 

Goodwill

On January 26, 2017, the Financial Accounting Standards Board (“FASB”) issued ASU 2017-04, “Intangibles—Goodwill and Other (Topic 350): Simplifying the Accounting for Goodwill Impairment.” The new guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. Teradyne adopted this standard on January 1, 2020, on a prospective basis. The adoption of ASU 2017-04 did not have a material impact on the consolidated statement of operations, cash flows, or earnings per share. Teradyne assesses goodwill for impairment at least annually in the fourth quarter, as of December 31, on a reporting unit basis, or more frequently, when events and circumstances occur indicating that the recorded goodwill may be impaired. Under ASU 2017-04, goodwill impairment will be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. All other goodwill impairment guidance will remain largely unchanged. Entities will continue to have the option to perform a qualitative assessment to determine if a quantitative impairment test is necessary. The same one-step impairment test will be applied to goodwill at all reporting units, even those with zero or negative carrying amounts. Entities will be required to disclose the amount of goodwill at reporting units with zero or negative carrying amounts.

Credit Losses

In June 2016, the FASB issued ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” This standard introduced the expected credit losses methodology for the measurement of credit losses on financial assets that are not measured at fair value through net income and replaces the “incurred loss” model with an “expected credit loss” model that requires consideration of a broader range of information to estimate expected credit losses over the lifetime of the asset. Teradyne adopted this standard on January 1, 2020 on a modified retrospective basis. The adoption of ASU 2016-13 did not have a material impact on the consolidated statement of operations, balance sheets, cash flows, or earnings per share.

6

C. ACQUISITIONS

AutoGuide LLC

On November 13, 2019, Teradyne acquired 100% of the membership interests of AutoGuide, LLC (“AutoGuide”), a maker of high-payload autonomous mobile robots (“AMRs”), based in Chelmsford, MA, an emerging and fast growing segment of the global forklift market. The total purchase price was approximately $81.6 million, which included cash paid of approximately $57.6 million and $24.0 million in fair value of contingent consideration payable upon achievement of certain performance targets, extending potentially through 2022. At March 29, 2020, the maximum contingent consideration that could be paid is $106.9 million.

The contingent consideration is payable upon achievement of certain thresholds and targets for revenue and earnings before interest and taxes for periods from January 1, 2019 to December 31, 2020, January 1, 2019 to December 31, 2021, and January 1, 2019 to December 31, 2022.

The valuation of the contingent consideration is dependent on the following assumptions: forecasted revenues, revenue volatility, earnings before interest and taxes, and discount rate. These assumptions were estimated based on a review of the historical and projected results.

The AutoGuide acquisition was accounted for as a business combination and, accordingly, the results have been included in Teradyne’s consolidated results of operations from the date of acquisition. AutoGuide’s AMRs are used for material transport of payloads up to 4,500 kg in manufacturing, warehouse and logistics applications. These products complement MiR’s lower payload products and expand the Industrial Automation segment, which is a key component of Teradyne’s growth strategy.

The allocation of the total purchase price to AutoGuide’s net tangible assets and identifiable intangible assets was based on their estimated fair values as of the acquisition date. The excess of the purchase price over the identifiable intangible assets and net tangible assets in the amount of  $41.2 million was allocated to goodwill, which is deductible for tax purposes. AutoGuide’s results have been included in Teradyne’s Industrial Automation segment from the date of acquisition.

The following table represents the final allocation of the purchase price:

	Purchase Price  Allocation
	(in thousands)
Goodwill	$	41,223
Intangible assets		37,660
Tangible assets acquired and liabilities assumed:
Other current assets		3,661
Non-current assets		1,227
Accounts payable and current liabilities		(1,223	)
Long-term other liabilities		(949	)
Total purchase price	$	81,599

Teradyne estimated the fair value of intangible assets using the income approach. Forecasted revenues is the key assumption for estimating the fair value. Acquired intangible assets are amortized on a straight-line basis over their estimated useful lives. Components of these intangible assets and their estimated useful lives at the acquisition date are as follows:

	Fair Value		Estimated Useful Life
	(in thousands)		(in years)
Developed technology	$	24,590		6.0
Customer relationships		7,360		6.0
Trademarks and tradenames		5,450		7.0
Backlog		260		0.3
Total intangible assets	$	37,660		6.1

7

The following unaudited pro forma information gives effect to the acquisition of AutoGuide as if the acquisition occurred on January 1, 2018. The unaudited pro forma results are not necessarily indicative of what actually would have occurred had the acquisition been in effect for the periods presented:

	For the Three Months Ended
	March 31, 2019
	(in thousands, except per share amounts)
Revenues	$	495,599
Net income	$	107,289
Net income per common share:
Basic	$	0.62
Diluted	$	0.61

Lemsys SA

On January 30, 2019, Teradyne acquired all of the issued and outstanding shares of Lemsys SA (“Lemsys”) for a total purchase price of approximately $9.1 million. Lemsys strengthens Teradyne’s position in the electrification trends of vehicles, solar and wind power, and industrial applications. The Lemsys acquisition was accounted for as a business combination and, accordingly, the results have been included in Teradyne’s Semiconductor Test segment from the date of acquisition. Teradyne’s final allocation of the purchase price was goodwill of $1.4 million, which is not deductible for tax purposes, acquired intangible assets of $4.6 million with an average estimated useful life of 5.2 years, and $3.1 million of net tangible assets. The acquisition was not material to Teradyne’s consolidated financial statements.

8

D. REVENUE

Disaggregation of Revenue

The following table provides information about disaggregated revenue by timing of revenue recognition, primary geographical market, and major product lines.

	Semiconductor Test						Industrial Automation						Wireless Test		Corporate and Other			Total
	System on a Chip		Memory		System Test		Universal Robots		Mobile Industrial Robots		AutoGuide
	(in thousands)
For the Three Months Ended March 29, 2020 (1)
Timing of Revenue Recognition
Point in Time	$	348,044	$	79,398	$	100,712	$	47,502	$	9,097	$	1,124	$	41,056	$	—		$	626,933
Over Time		52,095		4,952		15,364		2,195		41		346		2,429		—			77,422
Total	$	400,139	$	84,350	$	116,076	$	49,697	$	9,138	$	1,470	$	43,485	$	—		$	704,355
Geographical Market
Asia Pacific	$	362,732	$	76,110	$	80,017	$	10,917	$	1,593	$	—	$	37,805	$	—		$	569,174
Americas		17,386		6,896		28,291		14,743		3,465		1,470		4,688		—			76,939
Europe, Middle East and Africa		20,021		1,344		7,768		24,037		4,080		—		992		—			58,242
Total	$	400,139	$	84,350	$	116,076	$	49,697	$	9,138	$	1,470	$	43,485	$	—		$	704,355
For the Three Months Ended March 31, 2019 (1)
Timing of Revenue Recognition
Point in Time	$	238,755	$	43,775	$	45,237	$	55,379	$	9,106	$	—	$	27,454	$	(151	)	$	419,555
Over Time		54,051		4,272		12,983		1,651		—		—		1,587		—			74,544
Total	$	292,806	$	48,047	$	58,220	$	57,030	$	9,106	$	—	$	29,041	$	(151	)	$	494,099
Geographical Market
Asia Pacific	$	260,326	$	38,851	$	24,285	$	14,618	$	1,727	$	—	$	26,019	$	—		$	365,826
Americas		16,167		8,763		26,809		15,803		3,539		—		2,241		(151	)		73,171
Europe, Middle East and Africa		16,313		433		7,126		26,609		3,840		—		781		—			55,102
Total	$	292,806	$	48,047	$	58,220	$	57,030	$	9,106	$	—	$	29,041	$	(151	)	$	494,099

(1) Includes $1.8 million and $1.7 million in 2020 and 2019, for leases of Teradyne’s systems recognized outside ASC 606 “Revenue from Contracts with Customers.”

Contract Balances

For the three months ended March 29, 2020 and March 31, 2019, Teradyne recognized $39.5 million and $19.5 million, respectively, that was previously included within the deferred revenue and customer advances balances. This revenue primarily relates to undelivered hardware, extended warranties, training, application support, and post contract support. Each of these represents a distinct performance obligation. Teradyne expects to recognize 66% of the remaining performance obligation in the next 12 months, 26% in 1-3 years, and the remainder thereafter.

Accounts Receivable

Teradyne sells certain trade accounts receivables on a non-recourse basis to third-party financial institutions pursuant to factoring agreements. Teradyne accounts for these transactions as sales of receivables and presents cash proceeds as a cash provided by operating activities in the consolidated statements of cash flows. Total trade accounts receivable sold under the factoring agreements were $46.8 million and $41.7 million for the three months ended March 29, 2020 and March 31, 2019, respectively. Factoring fees for the sales of receivables were recorded in interest expense and were not material.

9

E. INVENTORIES

Inventories, net consisted of the following at March 29, 2020 and December 31, 2019:

	March 29,		December 31,
	2020		2019
	(in thousands)
Raw material	$	102,109	$	118,595
Work-in-process		39,848		32,695
Finished goods		41,021		45,401
	$	182,978	$	196,691

Inventory reserves at March 29, 2020 and December 31, 2019 were $105.3 million and $103.6 million, respectively.

F. FINANCIAL INSTRUMENTS

Cash Equivalents

Teradyne considers all highly liquid investments with maturities of three months or less at the date of acquisition to be cash equivalents.

Marketable Securities

Teradyne’s available-for-sale debt securities are classified as Level 2 and equity and debt mutual funds are classified as Level 1. Contingent consideration is classified as Level 3. The vast majority of Level 2 securities are fixed income securities priced by third party pricing vendors. These pricing vendors utilize the most recent observable market information in pricing these securities or, if specific prices are not available, use other observable inputs like market transactions involving identical or comparable securities.

During the three months ended March 29, 2020 and March 31, 2019, there were no transfers in or out of Level 1, Level 2, or Level 3 financial instruments.

Realized gains recorded in the three months ended March 29, 2020 and March 31, 2019 were $1.4 million and $0.1 million, respectively. Realized losses recorded in the three months ended March 29, 2020 and March 31, 2019 were $0.1 million. Realized gains and losses are included in other (income) expense, net.

Unrealized losses on equity securities recorded in the three months ended March 29, 2020 were $6.0 million. Unrealized gains on equity securities recorded in the three months ended March 31, 2019 were $2.8 million. Unrealized gains and losses on equity securities are included in other (income) expense, net. Unrealized gains and losses on available-for-sale debt securities are included in accumulated other comprehensive income (loss).

The cost of securities sold is based on the specific identification method.

10

The following table sets forth by fair value hierarchy Teradyne’s financial assets and liabilities that were measured at fair value on a recurring basis as of March 29, 2020 and December 31, 2019.

	March 29, 2020
	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in thousands)
Assets
Cash	$	270,460	$	—	$	—	$	270,460
Cash equivalents		244,176		78,858		—		323,034
Available-for-sale securities:
Commercial paper		—		101,947		—		101,947
U.S. Treasury securities		—		85,632		—		85,632
Corporate debt securities		—		67,467		—		67,467
Certificates of deposit and time deposits		—		25,776		—		25,776
Debt mutual funds		5,237		—		—		5,237
U.S. government agency securities		—		4,402		—		4,402
Non-U.S. government securities		—		589		—		589
Equity securities:
Mutual funds		20,464		—		—		20,464
	$	540,337	$	364,671	$	—	$	905,008
Derivative assets		—		344		—		344
Total	$	540,337	$	365,015	$	—	$	905,352
Liabilities
Contingent consideration	$	—	$	—	$	20,472	$	20,472
Derivative liabilities		—		254		—		254
Total	$	—	$	254	$	20,472	$	20,726
Reported as follows:
	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	514,636	$	78,858	$	—	$	593,494
Marketable securities		—		211,001		—		211,001
Long-term marketable securities		25,701		74,812		—		100,513
Prepayments and other current assets		—		344		—		344
Total	$	540,337	$	365,015	$	—	$	905,352
Liabilities
Other current liabilities	$	—	$	254	$	—	$	254
Contingent consideration		—		—		662		662
Long-term contingent consideration		—		—		19,810		19,810
Total	$	—	$	254	$	20,472	$	20,726

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	December 31, 2019
	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in thousands)
Assets
Cash	$	311,975	$	—	$	—		311,975
Cash equivalents		410,285		51,664		—		461,949
Available-for-sale securities:
Corporate debt securities		—		97,307		—		97,307
Commercial paper		—		54,149		—		54,149
U.S. Treasury securities		—		42,382		—		42,382
U.S. government agency securities		—		9,952		—		9,952
Debt mutual funds		6,888		—		—		6,888
Certificates of deposit and time deposits		—		4,751		—		4,751
Non-U.S. government securities		—		592		—		592
Equity securities:
Equity mutual funds		25,772		—		—		25,772
	$	754,920	$	260,797	$	—	$	1,015,717
Derivative assets		—		528		—		528
Total	$	754,920	$	261,325	$	—	$	1,016,245
Liabilities
Contingent consideration	$	—	$	—	$	39,705	$	39,705
Derivative liabilities		—		203		—		203
Total	$	—	$	203	$	39,705	$	39,908
Reported as follows:
	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	722,260	$	51,664	$	—	$	773,924
Marketable securities		—		137,303		—		137,303
Long-term marketable securities		32,660		71,830		—		104,490
Prepayments and other current assets		—		528		—		528
Total	$	754,920	$	261,325	$	—	$	1,016,245
Liabilities
Other accrued liabilities	$	—	$	203	$	—	$	203
Contingent consideration		—		—		9,106		9,106
Long-term contingent consideration		—		—		30,599		30,599
Total	$	—	$	203	$	39,705	$	39,908

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Changes in the fair value of Level 3 contingent consideration for the three months ended March 29, 2020 and March 31, 2019 were as follows:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
	(in thousands)
Balance at beginning of period	$	39,705		$	70,543
Foreign currency impact		(361	)		(610	)
Payments (a)(b)		(8,852	)		(34,590	)
Fair value adjustment (c)(d)		(10,020	)		2,970
Balance at end of period	$	20,472		$	38,313

(a) In the three months ended March 29, 2020, Teradyne paid $8.9 million of contingent consideration for the earn-out in connection with the acquisition of MiR.

(b) In the three months ended March 31, 2019, Teradyne paid $30.8 million and $3.8 million of contingent consideration for the earn-outs in connection with the acquisitions of MiR and Universal Robots A/S (“Universal Robots”), respectively.

(c) In the three months ended March 29, 2020, the fair value of contingent consideration for the earn-outs in connection with the acquisitions of MiR and AutoGuide decreased by $2.9 million and $7.1 million, respectively, due to lower forecasted results.

(d) In the three months ended March 31, 2019, the fair value of contingent consideration for the earn-out in connection with the acquisition of MiR increased by $3.0 million.

The following table provides quantitative information associated with the fair value measurement of Teradyne’s Level 3 financial instruments:

Liability	March 29,  2020 Fair Value		Valuation Technique		Unobservable Inputs		Weighted Average
	(in thousands)
Contingent consideration (AutoGuide)	$	19,810		Monte Carlo  Simulation		Revenue volatility		14.0	%
						Discount Rate		4.4	%
Contingent consideration (MiR)	$	662		Monte Carlo Simulation		Revenue volatility		16.0	%
						Discount Rate		2.2	%

As of March 29, 2020, the significant unobservable inputs used in the Monte Carlo simulation to fair value the AutoGuide and MiR contingent consideration include forecasted revenues, revenue volatility, earnings before interest and taxes, and discount rate. Increases or decreases in the inputs would result in a higher or lower fair value measurement.

As of March 29, 2020, the maximum amount of contingent consideration that could be paid in connection with the acquisition of AutoGuide is $106.9 million. The earn-out periods end on December 31, 2020, December 31, 2021 and December 31, 2022.

As of March 29, 2020, the maximum amount of contingent consideration that could be paid in connection with the acquisition of MiR is $61.4 million. The remaining earn-out period ends on December 31, 2020.

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The carrying amounts and fair values of Teradyne’s financial instruments at March 29, 2020 and December 31, 2019 were as follows:

	March 29, 2020				December 31, 2019
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(in thousands)
Assets
Cash and cash equivalents	$	593,494	$	593,494	$	773,924	$	773,924
Marketable securities		311,514		311,514		241,793		241,793
Derivative assets		344		344		528		528
Liabilities
Contingent consideration		20,472		20,472		39,705		39,705
Derivative liabilities		254		254		203		203
Convertible debt (1)		398,466		829,438		394,687		1,010,275

(1) The carrying value represents the bifurcated debt component only, while the fair value is based on quoted market prices for the convertible note, which includes the equity conversion features.

The fair values of accounts receivable, net and accounts payable approximate the carrying value due to the short-term nature of these instruments.

The following table summarizes the composition of available-for-sale marketable securities at March 29, 2020:

	March 29, 2020
	Available-for-Sale
	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Commercial paper	$	101,915	$	33	$	(1	)	$	101,947	$	1,296
U.S. Treasury securities		82,680		2,958		(6	)		85,632		96
Corporate debt securities		65,696		2,951		(1,180	)		67,467		40,891
Certificates of deposit and time deposits		25,769		7		—			25,776		—
Debt mutual funds		5,089		148		—			5,237		—
U.S. government agency securities		4,335		67		—			4,402		—
Non-U.S. government securities		589		—		—			589		—
	$	286,073	$	6,164	$	(1,187	)	$	291,050	$	42,283

Reported as follows:

	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Marketable securities	$	210,722	$	430	$	(151	)	$	211,001	$	32,037
Long-term marketable securities		75,351		5,734		(1,036	)		80,049		10,246
	$	286,073	$	6,164	$	(1,187	)	$	291,050	$	42,283

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The following table summarizes the composition of available-for-sale marketable securities at December 31, 2019:

	December 31, 2019
	Available-for-Sale
	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Corporate debt securities	$	93,267	$	4,081	$	(41	)	$	97,307	$	2,009
Commercial paper		54,124		26		(1	)		54,149		1,391
U.S. Treasury securities		42,167		431		(216	)		42,382		17,556
U.S. government agency securities		9,942		14		(4	)		9,952		3,043
Debt mutual funds		6,753		135		—			6,888		—
Certificates of deposit and time deposits		4,751		—		—			4,751		—
Non-U.S. government securities		592		—		—			592		—
	$	211,596	$	4,687	$	(262	)	$	216,021	$	23,999

Reported as follows:

	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Marketable securities	$	137,144	$	160	$	(1	)	$	137,303	$	2,922
Long-term marketable securities		74,452		4,527		(261	)		78,718		21,077
	$	211,596	$	4,687	$	(262	)	$	216,021	$	23,999

As of March 29, 2020 and December 31, 2019, the fair market value of investments with unrealized losses less than one year totaled $42.3 million and $23.6 million, respectively.

Teradyne reviews its investments to identify and evaluate investments that have an indication of possible impairment. Based on this review, Teradyne determined that the unrealized losses related to these investments at March 29, 2020 and December 31, 2019 were not other than temporary.

The contractual maturities of investments in available-for-sale securities held at March 29, 2020 were as follows:

	March 29, 2020
	Cost		Fair Market Value
	(in thousands)
Due within one year	$	210,722	$	211,001
Due after 1 year through 5 years		18,933		19,465
Due after 5 years through 10 years		12,440		13,160
Due after 10 years		38,889		42,187
Total	$	280,984	$	285,813

Contractual maturities of investments in available-for-sale securities held at March 29, 2020 exclude $5.2 million of debt mutual funds as they do not have a contractual maturity date.

Derivatives

Teradyne conducts business in a number of foreign countries, with certain transactions denominated in local currencies. The purpose of Teradyne’s foreign currency management is to minimize the effect of exchange rate fluctuations on certain foreign currency denominated monetary assets and liabilities. Teradyne does not use derivative financial instruments for trading or speculative purposes.

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To minimize the effect of exchange rate fluctuations associated with the remeasurement of monetary assets and liabilities denominated in foreign currencies, Teradyne enters into foreign currency forward contracts. The change in fair value of these derivatives is recorded directly in earnings, and is used to offset the change in value of monetary assets and liabilities denominated in foreign currencies.

The notional amount of foreign currency forward contracts at March 29, 2020 and December 31, 2019 was $132.1 million and $144.9 million, respectively.

Gains and losses on foreign currency forward contracts and foreign currency remeasurement gains and losses on monetary assets and liabilities are included in other (income) expense, net.

The following table summarizes the fair value of derivative instruments as of March 29, 2020 and December 31, 2019:

	Balance Sheet Location		March 29, 2020			December 31, 2019
			(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange contracts		Prepayments	$	344		$	528
Foreign exchange contracts		Other current liabilities		(254	)		(203	)
Total derivatives			$	90		$	325

The following table summarizes the effect of derivative instruments recognized in the statement of operations for the three months ended March 29, 2020 and March 31, 2019:

	Location of Losses	For the Three Months  Ended
	Recognized in	March 29,		March 31,
	Statement of Operations	2020		2019
		(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange contracts	Other (income) expense, net	$	4,011	$	3,934

(1) The table does not reflect the corresponding gains and losses from the remeasurement of the monetary assets and liabilities denominated in foreign currencies.

(2) For the three months ended March 29, 2020 and March 31, 2019, net gains from the remeasurement of monetary assets and liabilities denominated in foreign currencies were $2.0 million and $3.2 million, respectively.

See Note G: “Debt” regarding derivatives related to the convertible senior notes.

G. DEBT

Convertible Senior Notes

On December 12, 2016, Teradyne completed a private offering of $460.0 million aggregate principal amount of 1.25% convertible senior unsecured notes (the “Notes”) due December 15, 2023 and received net proceeds, after issuance costs, of approximately $450.8 million, $33.0 million of which was used to pay the net cost of the convertible note hedge transactions and $50.1 million of which was used to repurchase 2.0 million shares of Teradyne’s common stock under its existing stock repurchase program from purchasers of the Notes in privately negotiated transactions effected through one of the initial purchasers or its affiliates conducted concurrently with the pricing of the Note offering. The Notes will mature on December 15, 2023, unless earlier repurchased or converted. The Notes bear interest from December 12, 2016 at a rate of 1.25% per year payable semiannually in arrears on June 15 and December 15 of each year. The Notes will be convertible at the option of the noteholders at any time prior to the close of business on the business day immediately preceding September 15, 2023, only under the following circumstances: (1) during any calendar quarter beginning after March 31, 2017 (and only during such calendar quarter), if the closing sale price of Teradyne’s common stock, for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than 130% of the conversion price on each applicable trading day; (2) during the five business day period after any five consecutive trading day period (the “measurement period”) in which the trading price (as defined in the Indenture) per $1,000 principal amount of Notes for each trading day of the measurement period was less than 98% of the product of the closing sale price of the Teradyne’s common stock and the conversion rate on each such trading day; and (3) upon the occurrence of specified corporate events. On or after September 15, 2023 until the close of business on the second scheduled

16

trading day immediately preceding the maturity date, holders may convert their Notes at any time, regardless of the foregoing circumstances. Teradyne may satisfy its conversion obligation by paying or delivering cash, shares of its common stock or a combination of cash and shares of its common stock, at Teradyne’s election. As of March 29, 2020, the conversion price was approximately $31.61 per share of Teradyne’s common stock. The conversion rate is subject to adjustment under certain circumstances. As of May 4, 2020, eight holders exercised the option to convert seventeen thousand dollars worth of Notes.

Concurrent with the offering of the Notes, Teradyne entered into convertible note hedge transactions (the “Note Hedge Transactions”) with the initial purchasers or their affiliates (the “Option Counterparties”). The Note Hedge Transactions cover, subject to customary anti-dilution adjustments, the number of shares of the common stock that underlie the Notes, with a strike price equal to the conversion price of the Notes of $31.61. The Note Hedge Transactions cover, subject to customary anti-dilution adjustments, approximately 14.6 million shares of Teradyne’s common stock.

Separately and concurrent with the pricing of the Notes, Teradyne entered into warrant transactions with the Option Counterparties (the “Warrant Transactions”) in which it sold net-share-settled (or, at its election subject to certain conditions, cash-settled) warrants to the Option Counterparties. The Warrant Transactions cover, subject to customary anti-dilution adjustments, approximately 14.6 million shares of common stock. As of March 29, 2020, the strike price of the warrants was approximately $39.66 per share. The strike price is subject to adjustment under certain circumstances. The Warrant Transactions could have a dilutive effect to Teradyne’s common stock to the extent that the market price per share of Teradyne’s common stock, as measured under the terms of the Warrant Transactions, exceeds the applicable strike price of the warrants.

The Note Hedge Transactions are expected to reduce the potential dilution to Teradyne’s common stock upon any conversion of the Notes. However, the Warrant Transactions could separately have a dilutive effect to the extent that the market value per share of Teradyne’s common stock exceeds the applicable strike price of the warrant. The net cost of the Note Hedge Transactions, after being partially offset by the proceeds from the sale of the warrants, was approximately $33.0 million.

In connection with establishing their initial hedge of these convertible note hedge and warrant transactions, the Option Counterparties have entered into various derivative transactions with respect to Teradyne’s common stock and/or purchased shares of Teradyne’s common stock or other securities, including the Notes, concurrent with, or shortly after, the pricing of the Notes. In addition, the Option Counterparties may modify their hedge positions by entering into or unwinding various derivative transactions with respect to Teradyne’s common stock or by selling Teradyne’s common stock or other securities, including the Notes, in secondary market transactions (and may do so during any observation period related to the conversion of the Notes). These activities could adversely affect the value of Teradyne’s common stock and the Notes.

Teradyne considered the guidance of ASC 815-40, “Derivatives and Hedging—Contracts in Entity’s Own Equity,” and concluded that the convertible note hedge is both indexed to Teradyne’s common stock and should be classified in stockholders’ equity in its statements of financial position. The convertible note hedge is considered indexed to Teradyne’s common stock as the terms of the Note Hedge Transactions do not contain an exercise contingency and the settlement amount equals the difference between the fair value of a fixed number of Teradyne’s shares and a fixed strike price. Because the only variable that can affect the settlement amount is Teradyne’s stock price, which is an input to the fair value of a fixed-for-fixed option contract, the convertible note hedge is considered indexed to Teradyne’s common stock.

Teradyne assessed whether the convertible note hedge should be classified as equity under ASC 815-40. In the Note Hedge Transactions contract the settlement terms permit net cash settlement or net share settlement, at the option of Teradyne. Therefore, the criteria as set forth in ASC 815-40 were evaluated by Teradyne. In reviewing the criteria, Teradyne noted the following: (1) the convertible note hedge does not require Teradyne to issue shares; (2) there is no requirement to net cash settle the convertible note hedge for failure to make timely filings with the SEC; (3) in the case of termination, the convertible note hedge is settled in the same consideration as the holders of the underlying stock; (4) the counterparty does not have rights that rank higher than those of a shareholder of the stock underlying the convertible note hedge; and (5) there is no requirement to post collateral. Based on its analysis of those criteria, Teradyne concluded that the convertible note hedge should be recorded in equity and no further adjustment should be made in future periods to adjust the value of the convertible note hedge.

Teradyne analyzed the Warrant Transactions under ASC 815-40, “Derivatives and Hedging—Contracts in Entity’s Own Equity,” and other relevant literature, and determined that it met the criteria for classification as an equity transaction and is considered indexed to Teradyne’s common stock. As a result, Teradyne recorded the proceeds from the warrants as an increase to additional paid-in capital. Teradyne does not recognize subsequent changes in fair value of the warrants in its financial statements.

The provisions of ASC 470-20, “Debt with Conversion and Other Options,” are applicable to the Notes. ASC 470-20 requires Teradyne to separately account for the liability (debt) and equity (conversion feature) components of the Notes in a manner that reflects Teradyne’s nonconvertible debt borrowing rate at the date of issuance when interest cost is recognized in subsequent periods.

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Teradyne allocated $100.8 million of the $460.0 million principal amount of the Notes to the equity component, which represents a discount to the debt and will be amortized to interest expense using the effective interest method through December 2023. Accordingly, Teradyne’s effective annual interest rate on the Notes will be approximately 5.0%. The Notes are classified as long-term debt in the balance sheet based on their December 15, 2023 maturity date. Debt issuance costs of approximately $7.2 million are being amortized to interest expense using the effective interest method over the seven-year term of the Notes. As of March 29, 2020, debt issuance costs were approximately $4.1 million.

The below tables represent the key components of Teradyne’s convertible senior notes:

	March 29, 2020		December 31, 2019
	(in thousands)
Debt Principal	$	459,987	$	460,000
Unamortized discount		61,521		65,313
Net Carrying amount of convertible debt	$	398,466	$	394,687

	For the Three Months  Ended
	March 29, 2020		March 31, 2019
	(in thousands)
Contractual interest expense on the coupon	$	1,438	$	1,438
Amortization of the discount component and debt issue fees recognized as interest expense		3,792		3,608
Total interest expense on the convertible debt	$	5,230	$	5,046

As of March 29, 2020, the remaining unamortized discount was $61.5 million, which will be amortized over 3.7 years using the effective interest rate method. The carrying amount of the equity component was $100.8 million. As of March 29, 2020, the if-converted value of the Notes was $798.3 million.

H. PREPAYMENTS

Prepayments consist of the following and are included in prepayments and other assets on the balance sheet:

	March 29,		December 31,
	2020		2019
	(in thousands)
Contract manufacturer and supplier prepayments	$	173,082	$	143,392
Prepaid taxes		9,667		8,046
Prepaid maintenance and other services		10,828		8,503
Other prepayments		17,890		16,753
Total prepayments	$	211,467	$	176,694

I. DEFERRED REVENUE AND CUSTOMER ADVANCES

Deferred revenue and customer advances consist of the following and are included in short and long-term deferred revenue and customer advances on the balance sheet:

	March 29,		December 31,
	2020		2019
	(in thousands)
Maintenance, service and training	$	68,483	$	63,815
Extended warranty		33,503		30,677
Customer advances, undelivered elements and other		47,620		56,358
Total deferred revenue and customer advances	$	149,606	$	150,850

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J. PRODUCT WARRANTY

Teradyne generally provides a one-year warranty on its products, commencing upon installation, acceptance or shipment. A provision is recorded upon revenue recognition to cost of revenues for estimated warranty expense based on historical experience. Related costs are charged to the warranty accrual as incurred. The balance below is included in other accrued liabilities.

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
	(in thousands)
Balance at beginning of period	$	8,996		$	7,909
Acquisition		—			14
Accruals for warranties issued during the period		5,066			3,066
Accruals related to pre-existing warranties		1,056			1,330
Settlements made during the period		(4,147	)		(4,567	)
Balance at end of period	$	10,971		$	7,752

When Teradyne receives revenue for extended warranties, beyond one year, it is deferred and recognized on a straight-line basis over the contract period. Related costs are expensed as incurred. The balance below is included in short and long-term deferred revenue and customer advances.

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
	(in thousands)
Balance at beginning of period	$	30,677		$	27,422
Deferral of new extended warranty revenue		7,600			5,820
Recognition of extended warranty deferred revenue		(4,774	)		(6,000	)
Balance at end of period	$	33,503		$	27,242

K. STOCK-BASED COMPENSATION

Under Teradyne’s stock compensation plans, Teradyne grants service-based restricted stock units, performance-based restricted stock units and stock options, and employees are eligible to purchase Teradyne’s common stock through its Employee Stock Purchase Plan (“ESPP”).

Service-based restricted stock unit awards granted to employees vest in equal annual installments over four years. Restricted stock unit awards granted to non-employee directors vest after a one-year period, with 100% of the award vesting on the earlier of (a) the first anniversary of the grant date or (b) the date of the following year’s Annual Meeting of Shareholders. Teradyne expenses the cost of the restricted stock unit awards subject to service-based vesting, which is determined to be the fair market value of the shares at the date of grant, ratably over the period during which the restrictions lapse.

Performance-based restricted stock units (“PRSUs”) granted to Teradyne’s executive officers may have a performance metric based on relative total shareholder return (“TSR”). Teradyne’s three-year TSR performance is measured against the New York Stock Exchange (“NYSE”) Composite Index. The final number of TSR PRSUs that vest will vary based upon the level of performance achieved from 0% to 200% of the target shares capped at four times the grant date value for grants prior to 2019. The TSR PRSUs will vest upon the three-year anniversary of the grant date. The TSR PRSUs are valued using a Monte Carlo simulation model. The number of units expected to be earned, based upon the achievement of the TSR market condition, is factored into the grant date Monte Carlo valuation. Compensation expense is recognized on a straight-line basis over the shorter of the three-year service period or the period from the grant to the date described in the retirement provisions below. Compensation expense for executive officers meeting the retirement provisions prior to the grant date is recognized during the 365 days following the grant. Compensation expense is recognized regardless of the eventual number of units that are earned based upon the market condition, provided the executive officer remains an employee at the end of the three-year period. Compensation expense is reversed if at any time during the three-year service period the executive officer is no longer an employee, subject to the retirement and termination eligibility provisions noted below.

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PRSUs granted to Teradyne’s executive officers may also have a performance metric based on three-year cumulative non-GAAP profit before interest and tax (“PBIT”) as a percent of Teradyne’s revenue. Non-GAAP PBIT is a financial measure equal to GAAP income from operations less restructuring and other, net; amortization of acquired intangible assets; acquisition and divestiture related charges or credits; pension actuarial gains and losses; non-cash convertible debt interest expense; and other non-recurring gains and charges. The final number of PBIT PRSUs that vest will vary based upon the level of performance achieved from 0% to 200% of the target shares. The PBIT PRSUs will vest upon the three-year anniversary of the grant date. Compensation expense is recognized on a straight-line basis over the shorter of the three-year service period or the period from the grant date to the date described in the retirement provisions below. Compensation expense for executive officers meeting the retirement provisions prior to the grant date is recognized during the 365 days following the grant. Compensation expense is recognized based on the number of units that are earned based upon the three-year Teradyne PBIT as a percent of Teradyne’s revenue, provided the executive officer remains an employee at the end of the three-year period subject to the retirement and termination eligibility provisions noted below.

If a PRSU recipient’s employment ends prior to the determination of the performance percentage due to (1) permanent disability or death or (2) retirement or termination other than for cause, after attaining both at least age sixty and at least ten years of service, then all or a portion of the recipient’s PRSUs (based on the actual performance percentage achieved on the determination date) will vest on the date the performance percentage is determined. Except as set forth in the preceding sentence, no PRSUs will vest if the executive officer is no longer an employee at the end of the three-year period.

Stock options to purchase Teradyne’s common stock at 100% of the fair market value on the grant date vest in equal annual installments over four years from the grant date and have a maximum term of seven years.

During the three months ended March 29, 2020 and March 31, 2019, Teradyne granted 0.4 million and 0.6 million of service-based restricted stock unit awards to employees at a weighted average grant date fair value of $70.98 and $35.88, respectively.

During the three months ended March 29, 2020 and March 31, 2019, Teradyne granted 0.1 million of PBIT PRSUs with a grant date fair value of $70.94 and $35.67, respectively.

During the three months ended March 29, 2020 and March 31, 2019, Teradyne granted 0.1 million TSR PRSUs, with a grant date fair value of $89.93 and $48.47, respectively. The fair value was estimated using the Monte Carlo simulation model with the following assumptions:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
Risk-free interest rate		1.5	%		2.6	%
Teradyne volatility-historical		34.9	%		31.8	%
NYSE Composite Index volatility-historical		11.4	%		12.0	%
Dividend yield		0.6	%		1.0	%

Expected volatility was based on the historical volatility of Teradyne’s stock and the NYSE Composite Index for the 2020 and 2019 grant over the most recent three-year period. The risk-free interest rate was determined using the U.S. Treasury yield curve in effect at the time of grant. Dividend yield was based upon an estimated annual dividend amount of $0.40 per share divided by Teradyne’s stock price on the grant date of $72.10 for the 2020 grant and an estimated annual dividend amount of $0.36 per share divided by Teradyne’s stock price on the grant date of $36.75 for the 2019 grant.

During the three months ended March 29, 2020 and March 31, 2019, Teradyne granted 0.1 million of service-based stock options to executive officers at a weighted average grant date fair value of $20.67 and $10.26, respectively.

The fair value of stock options was estimated using the Black-Scholes option-pricing model with the following assumptions:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
Expected life (years)		5.0			5.0
Risk-free interest rate		1.6	%		2.6	%
Volatility-historical		31.6	%		30.1	%
Dividend yield		0.6	%		1.0	%

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Teradyne determined the stock options’ expected life based upon historical exercise data for executive officers, the age of the executive officers and the terms of the stock option grant. Volatility was determined using historical volatility for a period equal to the expected life. The risk-free interest rate was determined using the U.S. Treasury yield curve in effect at the time of grant. Dividend yield was based upon an estimated annual dividend amount of $0.40 per share divided by Teradyne’s stock price on the grant date of $72.10 for the 2020 grant and an estimated annual dividend amount of $0.36 per share divided by Teradyne’s stock price on the grant date of $36.75 for the 2019 grant.

L. ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME

Changes in accumulated other comprehensive (loss) income, which are presented net of tax, consist of the following:

	Foreign Currency Translation Adjustment			Unrealized Gains (Losses) on Marketable Securities			Retirement Plans Prior Service Credit			Total
	(in thousands)
Three Months Ended March 29, 2020
Balance at December 31, 2019, net of tax of $0, $946, $(1,124)	$	(23,514	)	$	3,480		$	1,180		$	(18,854	)
Other comprehensive income (loss) before reclassifications, net of tax of $0, $187, $0		(8,779	)		1,037			—			(7,742	)
Amounts reclassified from accumulated other comprehensive income, net of tax of $0, $(145), $0		—			(515	)		(2	)		(517	)
Net current period other comprehensive income (loss), net of tax of $0, $42, $0		(8,779	)		522			(2	)		(8,259	)
Balance at March 29, 2020, net of tax of $0, $988, $(1,124)	$	(32,293	)	$	4,002		$	1,178		$	(27,113	)
Three Months Ended March 31, 2019
Balance at December 31, 2018, net of tax of $0, $(521), $(1,081)	$	(12,523	)	$	(1,845	)	$	1,328		$	(13,040	)
Other comprehensive income (loss) before reclassifications, net of tax of $0, $577, $0		(4,659	)		2,100			—			(2,559	)
Amounts reclassified from accumulated other comprehensive income, net of tax of $0, $(20), $(11)		—			(70	)		(37	)		(107	)
Net current period other comprehensive income (loss), net of tax of $0, $557, $(11)		(4,659	)		2,030			(37	)		(2,666	)
Balance as March 31, 2019, net of tax of $0, $36, $(1,092)	$	(17,182	)	$	185		$	1,291		$	(15,706	)

Reclassifications out of accumulated other comprehensive (loss) income to the statement of operations for the three months ended March 29, 2020 and March 31, 2019 were as follows:

	For the Three Months Ended				Affected Line Item in the Statements of Operations
	March 29,		March 31,
	2020		2019
Details about Accumulated Other Comprehensive (loss) Income Components	(in thousands)
Available-for-sale marketable securities:
Unrealized gains, net of tax of $145, $20	$	515	$	70		Interest income
Defined benefit pension and postretirement plans:
Amortization of prior service benefit, net of tax of $0, $11		2		37		(a)
Total reclassifications, net of tax of $145, $31	$	517	$	107		Net income

(a) The amortization of prior service benefit is included in the computation of net periodic pension cost and postretirement benefit. See Note P: “Retirement Plans.”

M. GOODWILL AND ACQUIRED INTANGIBLE ASSETS

Goodwill

Teradyne performs its annual goodwill impairment test as required under the provisions of ASC 350-10, “Intangibles—Goodwill and Other” on December 31 of each fiscal year unless interim indicators of impairment exist. Goodwill is considered impaired when the net book value of a reporting unit exceeds its estimated fair value.

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The changes in the carrying amount of goodwill by reportable segments for the three months ended March 29, 2020, were as follows:

	Industrial Automation			System Test			Wireless Test			Semiconductor Test			Total
	(in thousands)
Balance at December 31, 2019
Goodwill	$	396,483		$	158,699		$	361,819		$	261,996		$	1,178,997
Accumulated impairment losses		—			(148,183	)		(353,843	)		(260,540	)		(762,566	)
		396,483			10,516			7,976			1,456			416,431
AutoGuide acquisition		(149	)		—			—			—			(149	)
Foreign currency translation adjustment		(6,354	)		—			—			5			(6,349	)
Balance at March 29, 2020
Goodwill		389,980			158,699			361,819			262,001			1,172,499
Accumulated impairment losses		—			(148,183	)		(353,843	)		(260,540	)		(762,566	)
	$	389,980		$	10,516		$	7,976		$	1,461		$	409,933

Intangible Assets

Teradyne reviews long-lived assets for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable or that the useful lives of these assets are no longer appropriate.

Amortizable intangible assets consist of the following and are included in intangible assets, net on the balance sheet:

	Gross Carrying Amount		Accumulated Amortization			Foreign Currency Translation Adjustment			Net Carrying Amount
	(in thousands)
Balance, March 29, 2020
Developed technology	$	361,787	$	(286,166	)	$	(6,663	)	$	68,958
Customer relationships		75,669		(60,406	)		(547	)		14,716
Tradenames and trademarks		70,120		(38,067	)		(1,406	)		30,647
Backlog		260		(260	)		—			—
Total intangible assets	$	507,836	$	(384,899	)	$	(8,616	)	$	114,321
Balance, December 31, 2019
Developed technology	$	361,787	$	(279,000	)	$	(5,709	)	$	77,078
Customer relationships		75,669		(59,077	)		(455	)		16,137
Tradenames and trademarks		70,120		(36,671	)		(1,184	)		32,265
Backlog		260		(260	)		—			—
Total intangible assets	$	507,836	$	(375,008	)	$	(7,348	)	$	125,480

Aggregate intangible asset amortization expense for the three months ended March 29, 2020 and March 31, 2019 was $9.9 million and $10.6 million, respectively.

Estimated intangible asset amortization expense for each of the five succeeding fiscal years is as follows:

	Amortization Expense
Year	(in thousands)
2020 (remainder)		20,411
2021		20,391
2022		19,498
2023		19,023
2024		18,718
Thereafter		16,280

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N. NET INCOME PER COMMON SHARE

The following table sets forth the computation of basic and diluted net income per common share:

	For the Three Months Ended
	March 29,		March 31,
	2020		2019
	(in thousands, except per share amounts)
Net income for basic and diluted net income per share	$	176,191	$	109,138
Weighted average common shares-basic		166,589		173,532
Effect of dilutive potential common shares:
Incremental shares from assumed conversion of convertible notes (1)		7,333		2,186
Convertible note hedge warrant shares (2)		5,492		—
Restricted stock units		1,163		1,021
Stock options		134		222
Employee stock purchase plan		25		11
Dilutive potential common shares		14,147		3,440
Weighted average common shares-diluted		180,736		176,972
Net income per common share-basic	$	1.06	$	0.63
Net income per common share-diluted	$	0.97	$	0.62

(1) Incremental shares from assumed conversion of the convertible notes was calculated using the difference between the average Teradyne stock price for the period and the conversion price of $31.61, multiplied by 14.6 million shares. The result of this calculation, representing the total intrinsic value of the convertible debt, was divided by the average Teradyne stock price for the period.

(2) Convertible notes hedge warrant shares were calculated using the difference between the average Teradyne stock price for the period and the warrant price of $39.66, multiplied by 14.6 million shares. The result of this calculation, representing the total intrinsic value of the warrant, was divided by the average Teradyne stock price for the period.

The computation of diluted net income per common share for the three months ended March 29, 2020 excludes the effect of the potential vesting of 0.3 million of restricted stock units because the effect would have been anti-dilutive.

The computation of diluted net income per common share for the three months ended March 31, 2019 excludes the effect of the potential vesting of 0.6 million shares of restricted stock units because the effect would have been anti-dilutive.

O. RESTRUCTURING AND OTHER

During the three months ended March 29, 2020, Teradyne recorded a gain of $10.0 million for the decrease in the fair value of the AutoGuide and MiR contingent consideration liabilities, partially offset by $1.4 million of acquisition related compensation and expenses and  $0.7 million of severance charges related to headcount reductions primarily in Industrial Automation and Semiconductor Test.

During the three months ended March 31, 2019, Teradyne recorded an expense of $3.0 million for the increase in the fair value of the MiR contingent consideration liability, $1.3 million of acquisition related compensation and expenses, and $0.8 million of severance charges related to headcount reductions primarily in Semiconductor Test.

P. RETIREMENT PLANS

ASC 715, “Compensation—Retirement Benefits” requires an employer with a defined benefit plan or other postretirement benefit plan to recognize an asset or a liability on its balance sheet for the overfunded or underfunded status of the plan. The pension asset or liability represents a difference between the fair value of the pension plan’s assets and the projected benefit obligation at December 31. Teradyne uses a December 31 measurement date for all of its plans.

Defined Benefit Pension Plans

Teradyne has defined benefit pension plans covering a portion of domestic employees and employees of certain non-U.S. subsidiaries. Benefits under these plans are based on employees’ years of service and compensation. Teradyne’s funding policy is to make contributions to these plans in accordance with local laws and to the extent that such contributions are tax deductible. The assets

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of the U.S. qualified pension plan consist primarily of fixed income and equity securities. In addition, Teradyne has unfunded qualified foreign plans as well as an unfunded supplemental executive defined benefit plan in the United States to provide retirement benefits in excess of levels allowed by the Employment Retirement Income Security Act (“ERISA”) and the Internal Revenue Code (“IRC”).

In the three months ended March 29, 2020, Teradyne contributed $0.7 million to the U.S. supplemental executive defined benefit pension plan and $0.2 million to certain qualified pension plans for non-U.S. subsidiaries.

For the three months ended March 29, 2020 and March 31, 2019, Teradyne’s net periodic pension cost was comprised of the following:

	For the Three Months Ended
	March 29, 2020						March 31, 2019
	United States			Foreign			United States			Foreign
	(in thousands)
Service cost	$	433		$	201		$	405		$	188
Interest cost		1,522			115			1,795			173
Expected return on plan assets		(1,233	)		(15	)		(1,511	)		(7	)
Total net periodic pension cost	$	722		$	301		$	689		$	354

Postretirement Benefit Plan

In addition to receiving pension benefits, Teradyne employees in the United States who meet early retirement eligibility requirements as of their termination dates may participate in Teradyne’s Welfare Plan, which includes medical and dental benefits up to age 65. Death benefits provide a fixed sum to retirees’ survivors and are available to all retirees. Substantially all of Teradyne’s current U.S. employees could become eligible for these benefits, and the existing benefit obligation relates primarily to those employees.

For the three months ended March 29, 2020 and March 31, 2019, Teradyne’s net periodic postretirement benefit cost was comprised of the following:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
	(in thousands)
Service cost	$	11		$	9
Interest cost		62			85
Amortization of prior service credit		(2	)		(48	)
Total net periodic postretirement benefit cost	$	71		$	46

Q. COMMITMENTS AND CONTINGENCIES

Purchase Commitments

As of March 29, 2020, Teradyne had entered into purchase commitments for certain components and materials. The purchase commitments covered by the agreements aggregate to approximately $543.8 million, of which $529.4 million is for less than one year.

Legal Claims

Teradyne is subject to various legal proceedings and claims which have arisen in the ordinary course of business such as, but not limited to, patent, employment, commercial and environmental matters. Teradyne believes that it has meritorious defenses against all pending claims and intends to vigorously contest them. While it is not possible to predict or determine the outcomes of any pending claims or to provide possible ranges of losses that may arise, Teradyne believes the potential losses associated with all of these actions are unlikely to have a material adverse effect on its business, financial position or results of operations.

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R. INCOME TAXES

A reconciliation of the United States federal statutory corporate tax rate to Teradyne’s effective tax rate was as follows:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
US statutory federal tax rate		21.0	%		21.0	%
Foreign taxes		(5.7	)		(3.1	)
Tax credits		(1.9	)		(3.0	)
Discrete benefit related to equity compensation		(4.1	)		(4.1	)
Discrete benefit related to release of reserves for uncertain tax positions		—			(27.6	)
Other, net		1.3			0.7
Effective tax rate		10.6	%		(16.1	)%

On a quarterly basis, Teradyne evaluates the realizability of the deferred tax assets by jurisdiction and assesses the need for a valuation allowance. As of March 29, 2020, Teradyne believes that it will ultimately realize the deferred tax assets recorded on the condensed consolidated balance sheet. However, should Teradyne believe that it is more-likely-than-not that the deferred tax assets would not be realized, the tax provision would increase in the period in which Teradyne determined that the realizability was not likely. Teradyne considers the probability of future taxable income and historical profitability, among other factors, in assessing the realizability of the deferred tax assets.

As of March 29, 2020 and December 31, 2019, Teradyne had $21.3 million and $21.2 million, respectively, of reserves for uncertain tax positions. The $0.1 million net increase in reserves for uncertain tax positions is associated with U.S. research and development tax credits generated in the current year.

As of March 29, 2020, Teradyne does not anticipate a material change in the balance of unrecognized tax benefits during the next twelve months.

Teradyne recognizes interest and penalties related to income tax matters in income tax expense. As of March 29, 2020 and December 31, 2019, $1.6 million and $1.4 million, respectively, of interest and penalties were accrued for uncertain tax positions. For the three months ended March 29, 2020 and March 31, 2019, expense of $0.1 million and $0.3 million, respectively, was recorded for interest and penalties related to income tax items.

Teradyne qualifies for a tax holiday in Singapore by fulfilling the requirements of an agreement with the Singapore Economic Development Board under which certain headcount and spending requirements must be met. The tax savings due to the tax holiday for the three months ended March 29, 2020 was $7.1 million, or $0.04 per diluted share. The tax savings due to the tax holiday for the three months ended March 31, 2019 was $2.1 million, or $0.01 per diluted share. The tax holiday is scheduled to expire on December 31, 2020.

S. SEGMENT INFORMATION

Teradyne has four reportable segments (Semiconductor Test, System Test, Industrial Automation and Wireless Test). Each of the Semiconductor Test, System Test, and Wireless Test segments is also an individual operating segment. The Industrial Automation reportable segment consists of operating segments with discrete financial information, which have been combined into one reportable segment as they share similar economic characteristics, types of products, production processes, distribution channels, and currency risks. The Semiconductor Test segment includes operations related to the design, manufacturing and marketing of semiconductor test products and services. The System Test segment includes operations related to the design, manufacturing and marketing of products and services for defense/aerospace instrumentation test, storage test and circuit-board test. The Industrial Automation segment includes operations related to the design, manufacturing and marketing of collaborative robotic arms, autonomous mobile robots and advanced robotic control software. The Wireless Test segment includes operations related to the design, manufacturing and marketing of wireless test products and services.

Teradyne evaluates performance based on several factors, of which the primary financial measure is business segment income (loss) before income taxes. The accounting policies of the business segments in effect are described in Note B: “Accounting Policies” in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2019.

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Segment information for the three months ended March 29, 2020 and March 31, 2019 is as follows:

	Semiconductor Test		System Test		Industrial Automation			Wireless Test		Corporate and Other			Consolidated
	(in thousands)
Three Months Ended March 29, 2020
Revenues	$	484,489	$	116,076	$	60,305		$	43,485	$	—		$	704,355
Income (loss) before taxes (1)(2)		153,816		48,407		(15,335	)		10,220		(39	)		197,069
Total assets (3)		921,108		137,056		643,011			106,400		1,012,813			2,820,388
Three Months Ended March 31, 2019
Revenues	$	340,853	$	58,220	$	66,136		$	29,041	$	(151	)	$	494,099
Income (loss) before taxes (1)(2)		83,049		15,340		(5,295	)		3,628		(2,743	)		93,979
Total assets (3)		770,967		98,916		596,899			73,066		1,076,795			2,616,643

(1) Included in Corporate and Other are: contingent consideration adjustments, severance charges, interest income, interest expense, net foreign exchange gains (losses), intercompany eliminations and acquisition related charges.

(2) Included in income (loss) before taxes are charges and credits related to restructuring and other, and inventory charges.

(3) Total assets are attributable to each segment. Corporate assets consist of cash and cash equivalents, marketable securities and certain other assets.

Included in each segment are charges and credits in the following line items in the statements of operations:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
	(in thousands)
Semiconductor Test:
Cost of revenues—inventory charge	$	3,026		$	1,174
Industrial Automation:
Restructuring and other—acquisition related expenses and compensation		618			1,261
Corporate and Other:
Restructuring and other—MiR contingent consideration adjustment		(2,878	)		3,003
Restructuring and other—AutoGuide contingent consideration adjustment		(7,142	)		—
Restructuring and other—acquisition related expenses and compensation		741			—

T. SHAREHOLDERS’ EQUITY

Stock Repurchase Program

In January 2020, Teradyne’s Board of Directors authorized a new stock repurchase program for up to $1.0 billion of common stock. Effective April 1, 2020, Teradyne suspended its share repurchase program.

During the three months ended March 29, 2020, Teradyne repurchased 1.3 million shares of common stock for $79.0 million at an average price of $58.81 per share. During the three months ended March 31, 2019, Teradyne repurchased 4.5 million shares of common stock for $156.5 million at an average price of $35.12 per share.

The total price includes commissions and is recorded as a reduction to retained earnings.

Dividend

Holders of Teradyne’s common stock are entitled to receive dividends when they are declared by Teradyne’s Board of Directors.

In January 2020, Teradyne’s Board of Directors declared a quarterly cash dividend of $0.10 per share. Dividend payments for the three months ended March 29, 2020 were $16.7 million. In January 2019, Teradyne’s Board of Directors declared a quarterly cash dividend of $0.09 per share. Dividend payments for the three months ended March 31, 2019 were $15.6 million.

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While Teradyne declared a quarterly cash dividend and has suspended its share repurchase program, it may reduce or eliminate the cash dividend and may implement a new share repurchase program in the future. Future cash dividends and stock repurchases are subject to the discretion of Teradyne’s Board of Directors, which will consider, among other things, Teradyne’s earnings, capital requirements and financial condition.

U. SUBSEQUENT EVENT

On May 1, 2020, Teradyne entered into a credit agreement (the “Credit Agreement”) with Truist Bank, as administrative agent and collateral agent, and the lenders party thereto. The Credit Agreement provides for a three-year, senior secured revolving credit facility of $400.0 million (the “Credit Facility”). The Credit Agreement further provides that, subject to customary conditions, Teradyne may seek to obtain from existing or new lenders incremental commitments under the Credit Facility in an aggregate principal amount not to exceed $150.0 million.

Proceeds from the Credit Facility may be used for general corporate purposes and working capital. As of May 4, 2020, Teradyne has not borrowed any funds under the Credit Facility.

The interest rates applicable to loans under the Credit Facility are, at Teradyne’s option, equal to either a base rate plus a margin ranging from 0.50% to 1.25% per annum or LIBOR, a minimum of 0.75%, plus a margin ranging from 1.50% to 2.25% per annum, based on the consolidated leverage ratio of Teradyne. In addition, Teradyne will pay a commitment fee on the unused portion of the commitments under the Credit Facility ranging from 0.25% to 0.40% per annum, based on the then applicable consolidated leverage ratio.

Teradyne is not required to repay any loans under the Credit Facility prior to maturity, subject to certain customary exceptions. Teradyne is permitted to prepay all or any portion of the loans under the Credit Facility prior to maturity without premium or penalty, other than customary LIBOR breakage costs.

The Credit Agreement contains customary events of default, representations, warranties and affirmative and negative covenants that, among other things, limit Teradyne’s ability to sell assets, grant liens on assets, incur other secured indebtedness and make certain investments and restricted payments, all subject to exceptions set forth in the Credit Agreement. The Credit Agreement also requires Teradyne to satisfy two financial ratios measured as of the end of each fiscal quarter: a consolidated leverage ratio and an interest coverage ratio.

The Credit Facility is guaranteed by certain of Teradyne’s domestic subsidiaries and collateralized by assets of Teradyne and such subsidiaries, including a pledge of 65% of the capital stock of certain foreign subsidiaries.

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

Statements in this Quarterly Report on Form 10-Q which are not historical facts, so called “forward-looking statements,” are made pursuant to the safe harbor provisions of Section 21E of the Securities Exchange Act of 1934, as amended. Investors are cautioned that all forward-looking statements involve risks and uncertainties, including those detailed in our filings with the Securities and Exchange Commission. See also Part II, Item 1A of this Quarterly Report on Form 10-Q and Part I, Item 1A “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2019. Readers are cautioned not to place undue reliance on these forward-looking statements which reflect management’s analysis only as of the date hereof. We assume no obligation to update these forward-looking statements to reflect actual results or changes in factors or assumptions affecting forward-looking statements, except as may be required by law.

Overview

We are a leading global supplier of automation equipment for test and industrial applications. We design, develop, manufacture and sell automatic test systems used to test semiconductors, wireless products, data storage and complex electronics systems in the consumer electronics, wireless, automotive, industrial, computing, communications, and aerospace and defense industries. Our industrial automation products include collaborative robotic arms, autonomous mobile robots and advanced robotic control software used by global manufacturing and light industrial customers to improve quality, increase manufacturing and material handling efficiency and decrease manufacturing costs. Our automatic test equipment and industrial automation products and services include:

• semiconductor test (“Semiconductor Test”) systems;

• defense/aerospace (“Defense/Aerospace”) test instrumentation and systems, storage test (“Storage Test”) systems, and circuit-board test and inspection (“Production Board Test”) systems (collectively these products represent “System Test”);

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• industrial automation (“Industrial Automation”) products; and

• wireless test (“Wireless Test”) systems.

We have a customer base which includes integrated device manufacturers (“IDMs”), outsourced semiconductor assembly and test providers (“OSATs”), original equipment manufacturers (“OEMs”), wafer foundries, fabless companies that design, but contract with others for the manufacture of integrated circuits (“ICs”), developers of wireless devices and consumer electronics, manufacturers of circuit boards, automotive suppliers, wireless product manufacturers, storage device manufacturers, aerospace and military contractors, and distributors that sell collaborative robots, autonomous mobile robots and wireless test systems.

The sales of our products and services are dependent, to a large degree, on these customers who are subject to cyclical trends in the demand for their products. These cyclical periods have had, and will continue to have, a significant effect on our business because our customers often delay or accelerate purchases in reaction to changes in their businesses and to demand fluctuations in the semiconductor, electronics and industrial automation industries. Historically, these demand fluctuations have resulted in significant variations in our results of operations.

The market for our test products is concentrated with a limited number of significant customers accounting for a substantial portion of the purchases of test equipment. A few customers drive significant demand for our products both through direct sales and sales to the customers’ supply partners. We expect that sales of our test products will continue to be concentrated with a limited number of significant customers for the foreseeable future.

On January 30, 2019, we acquired all of the issued and outstanding shares of Lemsys SA (“Lemsys”) for a total purchase price of approximately $9.1 million. Lemsys strengthens our position in the electrification trends of vehicles, solar, wind, and industrial applications. Lemsys is included in our Semiconductor Test segment.

On November 13, 2019, we acquired 100% of the membership interests of AutoGuide, LLC (“AutoGuide”), a maker of high payload AMRs, an emerging and fast growing segment of the global forklift market. The total purchase price was approximately $81.6 million, which included cash paid of approximately $57.6 million and $24.0 million in fair value of contingent consideration payable upon achievement of certain performance targets, extending potentially through 2022. The maximum contingent consideration that could be paid is $106.9 million. AutoGuide’s AMRs are used for material transport of payloads up to 4,500 kg in manufacturing, warehouse and logistics applications. These products complement MiR’s lower payload products. AutoGuide is included in our Industrial Automation segment.

We believe our recent acquisitions have enhanced our opportunities for growth. We intend to continue to invest in our business, grow market share in our markets and expand further our addressable markets while tightly managing our costs.

Impact of the COVID-19 Pandemic on our Business

The novel coronavirus (COVID-19) pandemic has resulted in government authorities implementing numerous measures in an effort to contain the spread of the virus, such as travel bans and restrictions, limitations on gatherings or social distancing requirements, quarantines, shelter-in-place orders, and business limitations and shutdowns. These measures have impacted our day-to-day operations and could disrupt our business, workforce and operations, as well as the operations of our customers, contract manufacturers and suppliers for an uncertain period of time. We are continuing to monitor the rapidly evolving situation regarding the COVID-19 pandemic and its impact on our business, results of operations, financial condition, liquidity and cash flows. However, despite careful tracking, we are unable to accurately predict the full impact of COVID-19, which will depend on future developments that are highly uncertain and cannot be predicted with accuracy, including, but not limited to, the duration and continued spread of the outbreak, its severity, the actions to contain the virus or treat its impact, and how quickly and to what extent normal economic and operating conditions can resume.

Health and Safety

In response to the COVID-19 pandemic, we have taken proactive, aggressive action to protect the health and safety of our employees, customers, contract manufacturers and suppliers and we have complied with all government orders around the globe. The spread of COVID-19 has caused us to modify our business practices, including implementing social distancing protocols, suspending employee travel, requiring most employees to work remotely, cancelling physical participation in meetings, and extensively and frequently disinfecting our workspaces. Around the world, the majority of our employees are working from home. However, some of our engineering, operations, supply line and customer support teams must be on-site at our or our customers’ facilities. We are providing those on-site employees with the necessary protective resources and procedures to minimize their exposure risk. We may take further actions as may be required or recommended by government authorities or that we determine are in the best interests of our employees, customers, contract manufacturers and suppliers.

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Operations

We believe the COVID-19 pandemic, and the numerous measures implemented by authorities in response, has adversely impacted our results of operations, including by increasing costs and decreasing demand in our Industrial Automation businesses, but we cannot accurately estimate the amount of the impact to our first quarter 2020 financial results or to our future financial results. In addition, restrictions on our access to manufacturing facilities or on our support operations or workforce, or similar limitations for our contract manufacturers and suppliers, and restrictions or disruptions affecting transportation, such as reduced availability of transportation and increased border controls or closures, could limit our capacity to meet customer demand which could have a material adverse effect on our financial condition and results of operations. These measures have impacted and may further impact our workforce and operations, as well as those of our customers, contract manufacturers and suppliers. The constraints and limits imposed on our operations may slow or diminish our production and research and development activities as well as application support projects with our customers. At this time, application support projects are largely on track with employees assisting customers on-site where necessary but with the use of enhanced safety protocols. Research and development projects are, with minor exceptions, on schedule despite the rapid shift of a significant number of our engineers working remotely. While governmental measures may be modified or extended, we expect that our manufacturing and research and development facilities will remain operational, at sufficient capacity to support production demand. We are monitoring our operations closely in an effort to avoid any potential productivity loss caused by responses to the COVID-19 pandemic.

Supply

We have not yet experienced any significant impacts or interruptions to our supply chain as a result of the COVID-19 pandemic. However, our suppliers have faced and may continue to face difficulties maintaining operations in light of government-ordered restrictions, including social distancing requirements and shelter-in-place mandates. Our supply chain team, and our suppliers, overcame numerous supply, production, and logistics obstacles during the first quarter, but there is no assurance we or they will be able to do so in the future. Although we regularly monitor the financial health of companies in our supply chain, financial hardship on our suppliers or sub-suppliers caused by the COVID-19 pandemic could disrupt our ability to obtain components required to manufacture our products, adversely affecting our operations. To mitigate the risk of any potential supply interruptions, we may choose to increase certain inventory levels during the quarter. Additionally, restrictions or disruptions affecting transportation, such as reduced availability of air transport, port closures and increased border controls or closures, have led in some instances to higher costs and delays, both for obtaining components and shipping finished goods to customers, which could harm our profitability, make our products less competitive, or cause our customers to seek alternative suppliers.

Demand

The COVID-19 pandemic has significantly increased economic uncertainty in our markets, which could result in a significant decrease in demand for our products for an uncertain period of time. Demand for our Test products was strong throughout the first quarter and into the second quarter. While there is incremental softening in the automotive sector, there is strengthening demand in mobility, 5G, and memory test. Our Industrial Automation business, however, has seen a significant decline in demand, which we expect will continue in the second quarter, due to COVID-19 related shutdowns affecting global manufacturing. We anticipate that the COVID-19 pandemic could cause further global economic disruption that could cause demand for our products to decline, which would adversely affect our business.

Liquidity

Although there is uncertainty related to the anticipated impact of the COVID-19 pandemic on our future results, we believe our business model, our current cash reserves and the recent steps we have taken to manage our cash flow, such as suspending our stock repurchase program, leave us well-positioned to manage our business through this crisis as it continues to unfold. We have a strong balance sheet as well as an operating model that can flex up and down with extreme demand swings and still remain profitable. Based on our analysis, we believe our existing balances of cash and cash equivalents and our currently anticipated operating cash flows will be sufficient to meet our working capital needs and other capital and liquidity requirements for the next twelve months. However, due to the uncertainty related to the future impact of the COVID-19 pandemic, in order to bolster our liquidity position, on May 1, 2020 we entered into a credit agreement providing for a three-year, senior secured revolving credit facility of $400 million as further described in Note U: “Subsequent Event.” As of May 4, 2020, we have not borrowed any funds under the credit facility. While test demand remained strong at the beginning of our second quarter and our balance sheet has over $900 million in available cash with no short-term debt as of May 4, 2020, the impact of the COVID-19 pandemic on short-term Test and Industrial Automation demand remain uncertain.

We are continuing to monitor the rapidly evolving situation regarding the COVID-19 pandemic and guidance from government authorities around the world, including federal, state and local public health authorities and may take additional actions based on their recommendations. In these circumstances, there may be developments outside our control requiring us to adjust our operating plan. As a result, given the uncertain nature of this situation, we are not able to accurately predict the full extent of the impact of COVID-19 on our business, financial condition, results of operations, liquidity or cash flows in the future. In addition, see Part II—Item 1A, “Risk Factors,” included herein for updates to our risk factors regarding risks associated with the COVID-19 pandemic.

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Critical Accounting Policies and Estimates

We have identified the policies which are critical to understanding our business and our results of operations. There have been no significant changes during the three months ended March 29, 2020 to the items disclosed as our critical accounting policies and estimates in Management’s Discussion and Analysis of Financial Condition and Results of Operations in our Annual Report on Form 10-K for the fiscal year ended December 31, 2019, except as noted below.

Due to the COVID-19 pandemic, there has been uncertainty and disruption in the global economy and our markets. We are not aware of any specific event or circumstance that would require an update to our estimates or judgments or a revision of the carrying value of our assets or liabilities as of May 4, 2020, 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 significantly from these estimates under different assumptions or conditions.

Goodwill

On January 26, 2017, the Financial Accounting Standards Board (“FASB”) issued ASU 2017-04, “Intangibles—Goodwill and Other (Topic 350): Simplifying the Accounting for Goodwill Impairment.” The new guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. We adopted this standard on January 1, 2020, on prospective basis. The adoption of ASU 2017-04 did not have a material impact on the consolidated statement of operations, cash flows, or earnings per share. We assess goodwill for impairment at least annually in the fourth quarter, as of December 31, on a reporting unit basis, or more frequently, when events and circumstances occur indicating that the recorded goodwill may be impaired. Under ASU 2017-04, goodwill impairment will be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. All other goodwill impairment guidance will remain largely unchanged. Entities will continue to have the option to perform a qualitative assessment to determine if a quantitative impairment test is necessary. The same one-step impairment test will be applied to goodwill at all reporting units, even those with zero or negative carrying amounts. Entities will be required to disclose the amount of goodwill at reporting units with zero or negative carrying amounts.

Credit Losses

In June 2016, the FASB issued ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” This standard introduced the expected credit losses methodology for the measurement of credit losses on financial assets that are not measured at fair value through net income and replaces the “incurred loss” model with an “expected credit loss” model that requires consideration of a broader range of information to estimate expected credit losses over the lifetime of the asset. We adopted this standard on January 1, 2020 on a modified retrospective basis. The adoption of ASU 2016-13 did not have a material impact on our consolidated statement of operations, balance sheets, cash flows, or earnings per share.

Preparation of Financial Statements and Use of Estimates

The preparation of consolidated financial statements requires management to make estimates and judgments that affect the amounts reported in the financial statements. Due to the COVID-19 pandemic, there has been uncertainty and disruption in the global economy and our markets. Teradyne is not aware of any specific event or circumstance that would require an update to its estimates or judgments or a revision of the carrying value of its assets or liabilities as of May 4, 2020, 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 may differ significantly from these estimates under different assumptions or conditions.

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SELECTED RELATIONSHIPS WITHIN THE CONDENSED CONSOLIDATED

STATEMENTS OF OPERATIONS

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
Percentage of revenues:
Revenues:
Products		87	%		80	%
Services		13			20
Total revenues		100			100
Cost of revenues:
Cost of products		37			33
Cost of services		6			8
Total cost of revenues (exclusive of acquired intangible assets amortization shown separately below)		42			42
Gross profit		58			58
Operating expenses:
Selling and administrative		16			21
Engineering and development		12			16
Acquired intangible assets amortization		1			2
Restructuring and other		(1	)		1
Total operating expenses		28			39
Income from operations		29			19
Non-operating (income) expense:
Interest income		—			(1	)
Interest expense		1			1
Other (income) expense, net		1			—
Income before income taxes		28			19
Income tax provision (benefit)		3			(3	)
Net income		25	%		22	%

Results of Operations

First Quarter 2020 Compared to First Quarter 2019

Revenues

Revenues by our four reportable segments were as follows:

	For the Three Months Ended
	March 29,		March 31,		Dollar
	2020		2019		Change
	(in millions)
Semiconductor Test	$	484.5	$	340.9	$	143.6
System Test		116.1		58.2		57.9
Industrial Automation		60.3		66.1		(5.8	)
Wireless Test		43.5		29.0		14.5
	$	704.4	$	494.1	$	210.3

The increase in Semiconductor Test revenues of $143.6 million, or 42.1%, was driven primarily by an increase in semiconductor mobility tester sales resulting from increased complexity of silicon in handsets which drives demand for testers, and an increase in memory test sales of flash and DRAM memory testers. The increase in System Test revenues of $57.9 million, or 99.5%, was primarily due to higher sales in Storage Test of 3.5” hard disk drive and system level testers, and higher sales in Defense/Aerospace

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test instrumentation and systems, partially offset by lower sales in Production Board Test due to lower automotive electronics demand. The decrease in Industrial Automation revenues of $5.8 million, or 8.8%, was primarily due to lower demand for collaborative robotic arms in automotive and manufacturing markets amplified by the impacts of COVID-19. The increase in Wireless Test revenues of $14.5 million, or 50.0%, was primarily due to increased tester demand for 5G cellular and new connectivity standards such as Ultra Wideband.

Revenues by country as a percentage of total revenues were as follows (1):

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
Taiwan		30	%		17	%
China		16			17
Korea		15			10
United States		11			15
Europe		8			11
Japan		7			12
Thailand		5			4
Singapore		3			6
Philippines		2			4
Malaysia		2			3
Rest of World		1			1
		100	%		100	%

(1) Revenues attributable to a country are based on location of customer site.

Gross Profit

Our gross profit was as follows:

	For the Three Months Ended
	March 29,			March 31,			Dollar/ Point
	2020			2019			Change
	(in millions)
Gross profit	$	405.6		$	287.6		$	117.9
Percent of total revenues		57.6	%		58.2	%		(0.6	)

Gross profit as a percent of revenue decreased by 0.6 points, primarily due to product mix in Semiconductor Test.

We assess the carrying value of our inventory on a quarterly basis by estimating future demand and comparing that demand against on-hand and on-order inventory positions. Forecasted revenue information is obtained from sales and marketing groups and incorporates factors such as backlog and future revenue demand. This quarterly process identifies obsolete and excess inventory. Obsolete inventory, which represents items for which there is no demand, is fully reserved. Excess inventory, which represents inventory items that are not expected to be consumed during the next twelve quarters for our Semiconductor Test, System Test and Industrial Automation segments and the next four quarters for our Wireless Test segment, is written-down to estimated net realizable value.

During the three months ended March 29, 2020, we recorded an inventory provision of $4.1 million included in cost of revenues primarily due to downward revisions to previously forecasted demand levels, of which $3.0 million was related to Semiconductor Test and $0.5 million was related to Wireless Test.

During the three months ended March 31, 2019, we recorded an inventory provision of $2.4 million included in cost of revenues primarily due to downward revisions to previously forecasted demand levels, of which $1.2 million was related to Semiconductor Test and $0.5 million was related to System Test.

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During the three months ended March 29, 2020 and March 31, 2019, we scrapped $1.2 million and $0.4 million of inventory, respectively. During the three months ended March 29, 2020 and March 31, 2019, we sold $1.1 million and $0.8 million of previously written-down or written-off inventory, respectively. As of March 29, 2020, we had inventory related reserves for inventory, which had been written-down or written-off totaling $105.3 million. We have no pre-determined timeline to scrap the remaining inventory.

Selling and Administrative

Selling and administrative expenses were as follows:

	For the Three Months Ended
	March 29,			March 31,			Dollar
	2020			2019			Change
	(in millions)
Selling and administrative	$	111.4		$	102.0		$	9.4
Percent of total revenues		15.8	%		20.6	%

The increase of $9.4 million in selling and administrative expenses was primarily due to higher sales and marketing spending in Semiconductor Test and Industrial Automation and higher variable compensation.

Engineering and Development

Engineering and development expenses were as follows:

	For the Three Months Ended
	March 29,			March 31,			Dollar
	2020			2019			Change
	(in millions)
Engineering and development	$	85.2		$	76.8		$	8.4
Percent of total revenues		12.1	%		15.5	%

The increase of $8.4 million in engineering and development expenses was primarily due to higher spending in Industrial Automation and Semiconductor Test and higher variable compensation.

Restructuring and Other

During the three months ended March 29, 2020, we recorded a gain of $10.0 million for the decrease in the fair value of the AutoGuide and MiR contingent consideration liabilities, partially offset by $1.4 million of acquisition related compensation and expenses and $0.7 million of severance charges related to headcount reductions primarily in Industrial Automation and Semiconductor Test.

During the three months ended March 31, 2019, we recorded an expense of $3.0 million for the increase in the fair value of the MiR contingent consideration liability, $1.3 million of acquisition related compensation and expenses, and $0.8 million of severance charges related to headcount reductions primarily in Semiconductor Test.

Interest and Other

	For the Three Months Ended
	March 29,			March 31,			Dollar
	2020			2019			Change
	(in millions)
Interest income	$	(2.8	)	$	(5.0	)	$	2.2
Interest expense		5.6			5.5			0.1
Other (income) expense, net		6.8			(1.4	)		8.2

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Interest income decreased by $2.2 million primarily due to lower interest rates and lower marketable securities balance in 2020 compared to 2019. Other (income) expense, net increased by $8.2 million primarily due to change in unrealized gains/losses on equity securities, from gains in 2019 to losses in 2020.

Income (Loss) Before Income Taxes

	For the Three Months Ended
	March 29,			March 31,			Dollar
	2020			2019			Change
	(in millions)
Semiconductor Test	$	153.8		$	83.0		$	70.8
System Test		48.4			15.3			33.1
Wireless Test		10.2			3.6			6.6
Industrial Automation		(15.3	)		(5.3	)		(10.0	)
Corporate and Other (1)		—			(2.7	)		2.7
	$	197.1		$	94.0		$	103.1

(1) Included in Corporate and Other are the following: contingent consideration adjustments, employee severance, interest (income) and expense, net foreign exchange (gains) and losses, intercompany eliminations, and acquisition related charges.

The increase in income before income taxes in Semiconductor Test was driven primarily by an increase in semiconductor mobility tester sales resulting from increased complexity of silicon in handsets which drives demand for testers, and an increase in memory test sales of flash and DRAM memory testers. The increase in income before income taxes in System Test was primarily due to higher sales in Storage Test of 3.5” hard disk drive and system level testers, and higher sales in Defense/Aerospace test instrumentation and systems, partially offset by lower sales in Production Board Test due to lower automotive electronics demand. The increase in income before income taxes in Wireless Test was primarily due to increased demand for connectivity, millimeter wave and cellular test products. The decrease in income before income taxes in Industrial Automation was primarily due to lower demand for collaborative robotic arms.

Income Taxes

The effective tax rate for the three months ended March 29, 2020 and March 31, 2019 was 10.6% and (16.1%), respectively. The increase in the effective tax rate from the three months ended March 31, 2019 to the three months ended March 29, 2020 is primarily attributable to the discrete tax benefit from the release of reserves for uncertain tax positions which was recognized in the three months ended March 31, 2019 and a reduction in the benefit from tax credits. These increases were partially offset by a projected shift in the geographic distribution of income, which decreases the income subject to taxation in higher tax rate jurisdictions relative to lower tax rate jurisdictions.

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Contractual Obligations

The following table reflects our contractual obligations as of March 29, 2020:

	Payments Due by Period
	Total		Less than 1 year		1-3 years		3-5 years		More than 5 years		Other
	(in thousands)
Convertible debt	$	459,987	$	—	$	—	$	459,987	$	—	$	—
Purchase obligations		543,774		529,368		14,406		—		—		—
Retirement plans contributions		130,923		5,040		10,408		10,268		105,207		—
Transition tax payable (1)		88,157		5,337		15,779		22,710		44,331		—
Operating lease obligations		73,708		22,183		27,730		13,515		10,280		—
Interest on long-term debt		23,000		5,750		11,500		5,750		—		—
Fair value of contingent consideration		20,472		662		19,810		—		—		—
Other long-term liabilities reflected on the balance sheet under GAAP (2)		82,360		—		39,492		10,843		456		31,569
Total	$	1,422,381	$	568,340	$	139,125	$	523,073	$	160,274	$	31,569

(1) Represents the transition tax liability associated with our accumulated foreign earnings as a result of enactment of the Tax Reform Act on December 22, 2017.

(2) Included in other long-term liabilities are liabilities for customer advances, extended warranty, uncertain tax positions, deferred tax liabilities and other obligations. For certain long-term obligations, we are unable to provide a reasonably reliable estimate of the timing of future payments relating to these obligations and therefore we included these amounts in the column marked “Other.”

Liquidity and Capital Resources

Our cash, cash equivalents, and marketable securities balances decreased by $110.7 million in the three months ended March 29, 2020 to $905.0 million.

Operating activities during the three months ended March 29, 2020 provided cash of $43.1 million. Changes in operating assets and liabilities used cash of $172.8 million. This was due to a $150.6 million increase in operating assets and a $22.2 million decrease in operating liabilities.

The increase in operating assets was primarily due to a $126.8 million increase in accounts receivable due to increased sales and a $39.6 million increase in prepayments and other assets, partially offset by a $15.8 million decrease in inventories.

The decrease in operating liabilities was due to a $44.4 million decrease in accrued employee compensation primarily due to first quarter payments related to variable compensation, $1.3 million of retirement plan contributions, a $0.9 million decrease in deferred revenue and customer advance payments, partially offset by a $15.3 million increase in income taxes, a $7.1 million increase in other accrued liabilities, and, a $2.0 million increase in accounts payable.

Investing activities during the three months ended March 29, 2020 used cash of $110.2 million, due to $187.1 million used for purchases of marketable securities, and $36.7 million used for purchases of property, plant and equipment, partially offset by $98.5 million and $15.0 million in proceeds from maturities and sales of marketable securities, respectively, and $0.1 million, net of cash acquired, for the acquisition of AutoGuide.

Financing activities during the three months ended March 29, 2020 used cash of $113.9 million, due to $79.0 million used for the repurchase of 1.3 million shares of common stock at an average price of $58.81 per share, $22.1 million used for payments related to net settlements of employee stock compensation awards, $16.7 million used for dividend payments, and $8.9 million used for a payment related to MiR acquisition contingent consideration, partially offset by $12.8 million from the issuance of common stock under employee stock purchase and stock option plans.

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Operating activities during the three months ended March 31, 2019 provided cash of $18.0 million. Changes in operating assets and liabilities used cash of $134.2 million. This was due to a $63.3 million increase in operating assets and a $70.9 million decrease in operating liabilities.

The increase in operating assets was primarily due to a $41.7 million increase in accounts receivable due to increased sales, an $18.6 million increase in prepayments and other assets, and a $2.9 million increase in inventories.

The decrease in operating liabilities was due to a $59.5 million decrease in accrued employee compensation primarily due to first quarter payments related to variable compensation, a $22.8 million decrease in income taxes, an $11.5 million decrease in other accrued liabilities, and $1.2 million of retirement plan contributions, partially offset by a $17.7 million increase in accounts payable, and a $6.5 million increase in deferred revenue and customer advance payments.

Investing activities during the three months ended March 31, 2019 used cash of $261.0 million, due to $375.2 million used for purchases of marketable securities, $25.7 million used for purchases of property, plant and equipment, and $7.0 million, net of cash acquired, used for the acquisition of Lemsys, partially offset by $141.2 million and $5.4 million in proceeds from maturities and sales of marketable securities, respectively, and proceeds from life insurance of $0.3 million related to the cash surrender value from the cancellation of a Teradyne owned life insurance policy.

Financing activities during the three months ended March 31, 2019 used cash of $199.8 million, due to $156.5 million used for the repurchase of 4.5 million shares of common stock at an average price of $35.12 per share, $27.6 million used for a payment related to MiR and Universal Robots acquisition contingent consideration, $15.6 million used for dividend payments, and $14.3 million used for payments related to net settlements of employee stock compensation awards, partially offset by $14.3 million from the issuance of common stock under employee stock purchase and stock option plans.

In January 2020, our Board of Directors declared a quarterly cash dividend of $0.10 per share. Dividend payments for the three months ended March 29, 2020 were $16.7 million.

In January 2019, our Board of Directors declared a quarterly cash dividend of $0.09 per share. Dividend payments for the three months ended March 31, 2019 were $15.6 million.

In January 2020, our Board of Directors cancelled the January 2018 stock repurchase program and approved a new stock repurchase program for up to $1.0 billion of common stock. On April 1, 2020, we suspended the share repurchase program. During the three months ended March 29, 2020, we repurchased 1.3 million shares of common stock for $79.0 million at an average price of $58.81 per share. During the three months ended March 31, 2019, we repurchased 4.5 million shares of common stock for $156.5 million at an average price of $35.12 per share.

While we declared a quarterly cash dividend and suspended our share repurchase program, we may reduce or eliminate the cash dividend and may implement a new share repurchase program in the future. Future cash dividends and stock repurchases are subject to the discretion of our Board of Directors, which will consider, among other things, our earnings, capital requirements and financial condition.

On May 1, 2020, we entered into a credit agreement providing for a three-year, senior secured revolving credit facility of $400 million. As of May 4, 2020, we have not borrowed any funds under the credit facility.

We believe our cash, cash equivalents and marketable securities balance will be sufficient to pay our quarterly dividend and meet our working capital and expenditure needs for at least the next twelve months. Inflation has not had a significant long-term impact on earnings. At this time, the COVID-19 pandemic has not had an impact on our liquidity, but there is no assurance that continued impacts resulting from the pandemic will not have an adverse effect in the future.

Equity Compensation Plans

As discussed in Note Q: “Stock Based Compensation” in our 2019 Annual Report on Form 10-K, we have a 1996 Employee Stock Purchase Plan and a 2006 Equity and Cash Compensation Incentive Plan (the “2006 Equity Plan”).

The purpose of the 1996 Employee Stock Purchase Plan is to encourage stock ownership by all eligible employees of Teradyne. The purpose of the 2006 Equity Plan is to provide equity ownership and compensation opportunities in Teradyne to our employees, officers, directors, consultants and/or advisors. Both plans were approved by our shareholders.

Item 3: Quantitative and Qualitative Disclosures about Market Risks

For “Quantitative and Qualitative Disclosures about Market Risk” affecting Teradyne, see Part 2 Item 7A, “Quantitative and Qualitative Disclosures about Market Risks,” in our Annual Report on Form 10-K filed with the SEC on March 2, 2020. There were no material changes in our exposure to market risk from those set forth in our Annual Report on Form 10-K for the fiscal year ended December 31, 2019.

36

In addition to market risks described in our Annual Report on Form 10-K, we have an equity price risk related to the fair value of our convertible senior unsecured notes issued in December 2016. In December 2016, Teradyne issued $460 million aggregate principal amount of 1.25% convertible senior unsecured notes (the “Notes”) due December 15, 2023. As of March 29, 2020, the Notes had a fair value of $829.4 million. The table below provides a sensitivity analysis of hypothetical 10% changes of Teradyne’s stock price as of the end of the first quarter of 2020 and the estimated impact on the fair value of the Notes. The selected scenarios are not predictions of future events, but rather are intended to illustrate the effect such event may have on the fair value of the Notes. The fair value of the Notes is subject to equity price risk due to the convertible feature. The fair value of the Notes will generally increase as Teradyne’s common stock price increases and will generally decrease as the common stock price declines in value. The change in stock price affects the fair value of the convertible senior notes, but does not impact Teradyne’s financial position, cash flows or results of operations due to the fixed nature of the debt obligation. Additionally, we carry the Notes at face value less unamortized discount on our balance sheet, and we present the fair value for required disclosure purposes only. In connection with the offering of the Notes we also sold warrants to the option counterparties. These transactions have been accounted for as an adjustment to our shareholders’ equity. The convertible note hedge transactions are expected to reduce the potential equity dilution upon conversion of the Notes. The warrants along with any shares issuable upon conversion of the Notes will have a dilutive effect on our earnings per share to the extent that the average market price of our common stock for a given reporting period exceeds the applicable strike price or conversion price of the warrants or Notes, respectively.

Hypothetical Change in Teradyne Stock Price	Fair Value		Estimated change in fair value			Hypothetical percentage increase (decrease) in fair value
10% Increase	$	901,709	$	72,271			8.7	%
No Change		829,438		—			—
10% Decrease		759,085		(70,353	)		(8.5	)

Item 4: Controls and Procedures

As of the end of the period covered by this report, our management, with the participation of our Chief Executive Officer and Chief Financial Officer, evaluated the effectiveness of our disclosure controls and procedures pursuant to Rule 13a-15(b) or Rule 15d-15(f) promulgated under the Exchange Act. The evaluation included any impact to our controls caused by remote working arrangements for a number of our employees due to the COVID-19 pandemic. Based upon that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that, as of the end of the period covered by this report, our disclosure controls and procedures were effective in ensuring that material information required to be disclosed in the reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, including ensuring that such material information is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.

37

PART II. OTHER INFORMATION

Item 1: Legal Proceedings

We are subject to various legal proceedings and claims which have arisen in the ordinary course of business such as, but not limited to, patent, employment, commercial and environmental matters. We believe that we have meritorious defenses against all pending claims and intend to vigorously contest them. While it is not possible to predict or determine the outcomes of any pending claims or to provide possible ranges of losses that may arise, we believe the potential losses associated with all of these actions are unlikely to have a material adverse effect on our business, financial position or results of operations.

Item 1A: Risk Factors

In addition to other information set forth in this Form 10-Q, including the risk discussed below, you should carefully consider the factors discussed in Part I, “Item 1A: Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2019, which could materially affect our business, financial condition or future results. The risk factors described in our Annual Report on Form 10-K remain applicable to our business and many of these risks could be further increased due to the COVID-19 pandemic.

The risks described in our Annual Report on Form 10-K are not the only risks that we face. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially adversely affect our business, financial condition and/or operating results.

The novel coronavirus (COVID-19) pandemic has impacted our business and could materially adversely affect our results of operations, financial condition, liquidity or cash flows.

The global outbreak of the recent novel strain of the coronavirus (COVID-19) has resulted in government authorities implementing numerous measures in an effort to contain the spread of the virus, such as travel bans and restrictions, limitations on gatherings or social distancing requirements, quarantines, shelter-in-place orders, and business limitations and shutdowns. These measures have impacted our day-to-day operations and could disrupt our business, workforce and operations, as well as the operations of our customers, contract manufacturers and suppliers for an uncertain period of time. We believe the COVID-19 pandemic, and the numerous measures implemented by authorities in response, has adversely impacted our results of operations, including by increasing costs and decreasing demand in our Industrial Automation businesses, but we cannot accurately estimate the full extent of the impact for our first quarter 2020 financial results or to our future financial results.

The COVID-19 pandemic has significantly increased economic uncertainty in our markets, which could result in a significant decrease in demand for our products for an uncertain period of time. In addition, restrictions on our access to manufacturing facilities or on our support operations or workforce, or similar limitations for our contractor manufacturers and suppliers, and restrictions or disruptions affecting transportation, such as reduced availability of transportation and increased border controls or closures, could limit our capacity to meet customer demand, which could have a material adverse effect on our financial condition and results of operations. The spread of COVID-19 has caused us to modify our business practices, including implementing social distancing protocols, suspending employee travel, requiring most employees to work remotely, canceling physical participation in meetings, events and conferences, and extensively and frequently disinfecting our workspaces, and we may take further actions as may be required by government authorities or that we determine are in the best interests of our employees, customers, contract manufacturers and suppliers. These measures may not be sufficient to mitigate the risks posed by the virus, and our ability to perform critical functions could be harmed. In January 2020, we announced our intention to repurchase $250 million in shares in 2020. However, due to the uncertainty regarding the duration, severity and business impact of the COVID-19 pandemic, as of April 1, 2020, we have suspended our stock repurchase program. At this time, we do not know whether or when we will resume our 2020 repurchase plan or authorize future stock repurchase programs.

We are continuing to monitor the rapidly evolving situation regarding the COVID-19 pandemic and its impact on our business, results of operations, financial condition, liquidity and cash flows. However, despite careful tracking, we are unable to accurately predict the full impact of COVID-19, which will depend on future developments that are highly uncertain and cannot be predicted with accuracy, including, but not limited to, the duration and continued spread of the outbreak, its severity, the actions to contain the virus or treat its impact, and how quickly and to what extent normal economic and operating conditions can resume.

Trade regulations and restrictions could impact our ability to sell products to and support certain customers, which may materially adversely affect our sales and results of operations.

We are subject to U.S. laws and regulations that limit and restrict the export of some of our products and services and may restrict our transactions with certain customers, business partners and other persons. In certain circumstances, export control and economic sanctions regulations may prohibit the export of certain products, services and technologies, and in other circumstances we may be required to obtain an export license before exporting the controlled item. We must also comply with export restrictions and laws imposed by other countries affecting trade and investments. We maintain an export compliance program but there are risks that the compliance controls could be circumvented, exposing us to legal liabilities. Compliance with these laws has not significantly limited our sales, but could significantly limit them in the future. Changes in, and responses to, U.S. trade policy could reduce the competitiveness of our products and cause our sales to drop, which could have a material adverse effect on our business, financial condition or results of operations.

38

The U.S. government from time to time has issued export restrictions that prohibit U.S. companies from exporting U.S. manufactured products, foreign manufactured products with more than 25% controlled U.S. content, as well as U.S. origin technology. For example, the U.S. Department of Commerce has restricted the access of U.S. origin technologies to certain Chinese companies by adding those companies to the Entity List under U.S. Export Administration Regulations (“EAR”).

On May 16, 2019, Huawei and 68 of its affiliates, including HiSilicon, were added to the U.S. Department of Commerce Entity List under the EAR. This action by the U.S. Department of Commerce imposes new export licensing requirements on exports, re-exports, and in-country transfers of all U.S. regulated products, software and technology to the designated Huawei entities. While most of our products are not subject to the EAR and therefore not affected by the Entity List restrictions, certain of our products are currently manufactured in the U.S. and thus subject to the Entity List restrictions. Compliance with the Entity List restrictions has not significantly impacted our sales. In addition, the prohibition on transfers of U.S. origin technology to Huawei could significantly limit our ability to service certain of our products sold to Huawei and our ability to engage in product development activities with Huawei and, therefore, could have a material adverse effect on our business, financial condition or results of operations. Furthermore, Huawei’s inability to obtain products from other companies in its supply chain may adversely impact Huawei’s demand for our products. Huawei or other foreign customers affected by future U.S. government sanctions or threats of sanctions may respond by developing their own solutions to replace our products or by adopting our foreign competitors’ solutions. Also, our controls related to Entity List compliance could be circumvented, exposing us to legal liabilities. Even if such restrictions are lifted, any financial or other penalties or continuing export restrictions imposed on Huawei could have a material adverse effect on our business, financial condition or results of operations.

The U.S. Department of Commerce may modify the U.S. EAR to expand the scope of the regulations to include additional products that would become subject to the Entity List restrictions relating to Huawei and the designated Huawei entities including HiSilicon. These modified regulations, if implemented as currently reported, may impact our sales to third party contract manufacturers used by Huawei and HiSilicon to manufacture and test semiconductor and other electronic devices. Because the business environment for Huawei is both fluid and uncertain, there are also risks that Huawei, HiSilicon and their third-party contract manufacturers may have less demand for our products and/or may purchase products from our competitors who are not impacted by the U.S. regulations. Until these or any new regulations become public and effective, we will not know the extent of the impact on our business with Huawei, HiSilicon and their third-party contract manufacturers. However, it is possible that these modified regulations and any other additional regulations that may be implemented by the U.S. Department of Commerce or other government agency would have a material impact on our business and financial results.

On April 27, 2020, the Department of Commerce announced new export controls for certain U.S. products and technology sold to military and civilian end users in China. We do not expect that compliance with the new export controls will significantly impact our ability to sell products to our customers in China or to manufacture products in China. The new export controls, however, could disrupt our supply chain, increase our compliance costs and impact the demand for our products in China and, thus, have a material adverse impact on our business, financial condition or results of operations. In addition, while we maintain an export compliance program, our compliance controls could be circumvented, exposing us to legal liabilities. We will continue to assess the potential impact of the new export controls on our business and operations and take appropriate actions, including filing for licenses with the Department of Commerce, to minimize any disruption. However, we cannot be certain that the actions we take will mitigate all of the risks associated with the new export controls that may impact our business.

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

In January 2020, our Board of Directors cancelled the January 2018 stock repurchase program and authorized a new stock repurchase program for up to $1.0 billion of common stock. On April 1, 2020, we suspended the repurchase program. During the three months ended March 29, 2020, we repurchased 1.3 million shares of common stock for $79.0 million at an average price of $58.81 per share. During the three months ended March 31, 2019, we repurchased 4.5 million shares of common stock for $156.5 million at an average price of $35.12 per share.

The following table includes information with respect to repurchases we made of our common stock during the three months ended March 29, 2020 (in thousands except per share price):

Period	(a) Total Number of Shares (or Units) Purchased			(b) Average Price Paid per Share (or Unit)			(c) Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs		(d) Maximum Number (or Approximate Dollar Value) of Shares (or Units) that may Yet Be Purchased Under the Plans or Programs
January 1, 2020 – January 26, 2020		208		$	69.05			207	$	985,700
January 27, 2020 – February 23, 2020		595		$	69.90			282	$	965,901
February 24, 2020 – March 29, 2020		858		$	52.59			855	$	920,961
		1,661	(1)	$	60.85	(1)		1,344

(1) Includes approximately three hundred thousand shares at an average price of $69.52 withheld from employees for the payment of taxes.

39

We satisfy U.S. federal and state minimum withholding tax obligations due upon the vesting and the conversion of restricted stock units into shares of our common stock, by automatically withholding from the shares being issued, a number of shares with an aggregate fair market value on the date of such vesting and conversion that would satisfy the minimum withholding amount due.

Item 4: Mine Safety Disclosures

Not Applicable

40

Item 6: Exhibits

Exhibit Number		Description
	31.1	Certification of Principal Executive Officer, pursuant to Rule 13a-14(a) of Securities and Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith)
	31.2	Certification of Principal Financial Officer, pursuant to Rule 13a-14(a) of Securities and Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith)
	32.1	Certification of Principal Executive Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith)
	32.2	Certification of Principal Financial Officer pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith)
	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)

41

SIGNATURES

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

TERADYNE, INC.

Registrant

/s/ Sanjay Mehta

Sanjay Mehta

Vice President,

Chief Financial Officer and Treasurer

(Duly Authorized Officer

and Principal Financial Officer)

May 4, 2020

42

EX-31.1

Exhibit 31.1

CERTIFICATIONS

I, Mark E. Jagiela, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Teradyne, Inc.;

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

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

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

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

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

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

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

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

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: May 4, 2020

By:	/S/ MARK E. JAGIELA
	Mark E. Jagiela
	Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATIONS

I, Sanjay Mehta, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Teradyne, Inc.;

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

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

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

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

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

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

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

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

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: May 4, 2020

By:	/S/ SANJAY MEHTA
	Sanjay Mehta
	Chief Financial Officer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Teradyne, Inc. (the “Company”) on Form 10-Q for the period ended March 29, 2020 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Mark E. Jagiela, Chief Executive Officer of the Company, certify pursuant to 18 U.S.C (S) 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

/S/ MARK E. JAGIELA

Mark E. Jagiela

Chief Executive Officer

May 4, 2020

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Teradyne, Inc. (the “Company”) on Form 10-Q for the period ended March 29, 2020 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Sanjay Mehta, Chief Financial Officer of the Company, certify pursuant to 18 U.S.C (S) 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods expressed in the Report.

/S/ SANJAY MEHTA

Sanjay Mehta

Chief Financial Officer

May 4, 2020

XML

Product Warranty (Tables)

3 Months Ended

Mar. 29, 2020

Other Accrued Liabilities

Related costs are charged to the warranty accrual as incurred. The balance below is included in other accrued liabilities.

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
	(in thousands)
Balance at beginning of period	$	8,996		$	7,909
Acquisition		—			14
Accruals for warranties issued during the period		5,066			3,066
Accruals related to pre-existing warranties		1,056			1,330
Settlements made during the period		(4,147	)		(4,567	)
Balance at end of period	$	10,971		$	7,752

Extended Product Warranty of Short and Long-Term Deferred Revenue and Customer Advances

The balance below is included in short and long-term deferred revenue and customer advances.

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
	(in thousands)
Balance at beginning of period	$	30,677		$	27,422
Deferral of new extended warranty revenue		7,600			5,820
Recognition of extended warranty deferred revenue		(4,774	)		(6,000	)
Balance at end of period	$	33,503		$	27,242

XML

Financial Instruments (Tables)

3 Months Ended

Mar. 29, 2020

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

The following table sets forth by fair value hierarchy Teradyne’s financial assets and liabilities that were measured at fair value on a recurring basis as of March 29, 2020 and December 31, 2019.

	March 29, 2020
	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in thousands)
Assets
Cash	$	270,460	$	—	$	—	$	270,460
Cash equivalents		244,176		78,858		—		323,034
Available-for-sale securities:
Commercial paper		—		101,947		—		101,947
U.S. Treasury securities		—		85,632		—		85,632
Corporate debt securities		—		67,467		—		67,467
Certificates of deposit and time deposits		—		25,776		—		25,776
Debt mutual funds		5,237		—		—		5,237
U.S. government agency securities		—		4,402		—		4,402
Non-U.S. government securities		—		589		—		589
Equity securities:
Mutual funds		20,464		—		—		20,464
	$	540,337	$	364,671	$	—	$	905,008
Derivative assets		—		344		—		344
Total	$	540,337	$	365,015	$	—	$	905,352
Liabilities
Contingent consideration	$	—	$	—	$	20,472	$	20,472
Derivative liabilities		—		254		—		254
Total	$	—	$	254	$	20,472	$	20,726
Reported as follows:
	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	514,636	$	78,858	$	—	$	593,494
Marketable securities		—		211,001		—		211,001
Long-term marketable securities		25,701		74,812		—		100,513
Prepayments and other current assets		—		344		—		344
Total	$	540,337	$	365,015	$	—	$	905,352
Liabilities
Other current liabilities	$	—	$	254	$	—	$	254
Contingent consideration		—		—		662		662
Long-term contingent consideration		—		—		19,810		19,810
Total	$	—	$	254	$	20,472	$	20,726

	December 31, 2019
	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in thousands)
Assets
Cash	$	311,975	$	—	$	—		311,975
Cash equivalents		410,285		51,664		—		461,949
Available-for-sale securities:
Corporate debt securities		—		97,307		—		97,307
Commercial paper		—		54,149		—		54,149
U.S. Treasury securities		—		42,382		—		42,382
U.S. government agency securities		—		9,952		—		9,952
Debt mutual funds		6,888		—		—		6,888
Certificates of deposit and time deposits		—		4,751		—		4,751
Non-U.S. government securities		—		592		—		592
Equity securities:
Equity mutual funds		25,772		—		—		25,772
	$	754,920	$	260,797	$	—	$	1,015,717
Derivative assets		—		528		—		528
Total	$	754,920	$	261,325	$	—	$	1,016,245
Liabilities
Contingent consideration	$	—	$	—	$	39,705	$	39,705
Derivative liabilities		—		203		—		203
Total	$	—	$	203	$	39,705	$	39,908
Reported as follows:
	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	722,260	$	51,664	$	—	$	773,924
Marketable securities		—		137,303		—		137,303
Long-term marketable securities		32,660		71,830		—		104,490
Prepayments and other current assets		—		528		—		528
Total	$	754,920	$	261,325	$	—	$	1,016,245
Liabilities
Other accrued liabilities	$	—	$	203	$	—	$	203
Contingent consideration		—		—		9,106		9,106
Long-term contingent consideration		—		—		30,599		30,599
Total	$	—	$	203	$	39,705	$	39,908

Schedule of Changes in Fair Value of Level 3 Contingent Consideration

Changes in the fair value of Level 3 contingent consideration for the three months ended March 29, 2020 and March 31, 2019 were as follows:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
	(in thousands)
Balance at beginning of period	$	39,705		$	70,543
Foreign currency impact		(361	)		(610	)
Payments (a)(b)		(8,852	)		(34,590	)
Fair value adjustment (c)(d)		(10,020	)		2,970
Balance at end of period	$	20,472		$	38,313

(a) In the three months ended March 29, 2020, Teradyne paid $8.9 million of contingent consideration for the earn-out in connection with the acquisition of MiR.

(b) In the three months ended March 31, 2019, Teradyne paid $30.8 million and $3.8 million of contingent consideration for the earn-outs in connection with the acquisitions of MiR and Universal Robots A/S (“Universal Robots”), respectively.

(c) In the three months ended March 29, 2020, the fair value of contingent consideration for the earn-outs in connection with the acquisitions of MiR and AutoGuide decreased by $2.9 million and $7.1 million, respectively, due to lower forecasted results.

(d) In the three months ended March 31, 2019, the fair value of contingent consideration for the earn-out in connection with the acquisition of MiR increased by $3.0 million.

Quantitative Information Associated With Fair Value Measurement of Level 3 Financial Instrument

The following table provides quantitative information associated with the fair value measurement of Teradyne’s Level 3 financial instruments:

Liability	March 29,  2020 Fair Value		Valuation Technique		Unobservable Inputs		Weighted Average
	(in thousands)
Contingent consideration (AutoGuide)	$	19,810		Monte Carlo  Simulation		Revenue volatility		14.0	%
						Discount Rate		4.4	%
Contingent consideration (MiR)	$	662		Monte Carlo Simulation		Revenue volatility		16.0	%
						Discount Rate		2.2	%

Schedule of Carrying Amounts and Fair Values of Financial Instruments

The carrying amounts and fair values of Teradyne’s financial instruments at March 29, 2020 and December 31, 2019 were as follows:

	March 29, 2020				December 31, 2019
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(in thousands)
Assets
Cash and cash equivalents	$	593,494	$	593,494	$	773,924	$	773,924
Marketable securities		311,514		311,514		241,793		241,793
Derivative assets		344		344		528		528
Liabilities
Contingent consideration		20,472		20,472		39,705		39,705
Derivative liabilities		254		254		203		203
Convertible debt (1)		398,466		829,438		394,687		1,010,275

(1) The carrying value represents the bifurcated debt component only, while the fair value is based on quoted market prices for the convertible note, which includes the equity conversion features.

Schedule of Available-for-Sale Marketable Securities

The following table summarizes the composition of available-for-sale marketable securities at March 29, 2020:

	March 29, 2020
	Available-for-Sale
	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Commercial paper	$	101,915	$	33	$	(1	)	$	101,947	$	1,296
U.S. Treasury securities		82,680		2,958		(6	)		85,632		96
Corporate debt securities		65,696		2,951		(1,180	)		67,467		40,891
Certificates of deposit and time deposits		25,769		7		—			25,776		—
Debt mutual funds		5,089		148		—			5,237		—
U.S. government agency securities		4,335		67		—			4,402		—
Non-U.S. government securities		589		—		—			589		—
	$	286,073	$	6,164	$	(1,187	)	$	291,050	$	42,283

Reported as follows:

	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Marketable securities	$	210,722	$	430	$	(151	)	$	211,001	$	32,037
Long-term marketable securities		75,351		5,734		(1,036	)		80,049		10,246
	$	286,073	$	6,164	$	(1,187	)	$	291,050	$	42,283

Reported as follows:

	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Marketable securities	$	137,144	$	160	$	(1	)	$	137,303	$	2,922
Long-term marketable securities		74,452		4,527		(261	)		78,718		21,077
	$	211,596	$	4,687	$	(262	)	$	216,021	$	23,999

Contractual Maturities of Investments Held

The contractual maturities of investments in available-for-sale securities held at March 29, 2020 were as follows:

	March 29, 2020
	Cost		Fair Market Value
	(in thousands)
Due within one year	$	210,722	$	211,001
Due after 1 year through 5 years		18,933		19,465
Due after 5 years through 10 years		12,440		13,160
Due after 10 years		38,889		42,187
Total	$	280,984	$	285,813

Schedule of Derivative Instruments in Statement of Financial Position at Fair Value

The following table summarizes the fair value of derivative instruments as of March 29, 2020 and December 31, 2019:

	Balance Sheet Location		March 29, 2020			December 31, 2019
			(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange contracts		Prepayments	$	344		$	528
Foreign exchange contracts		Other current liabilities		(254	)		(203	)
Total derivatives			$	90		$	325

Schedule of Effect of Derivative Instruments on Statement of Operations Recognized

The following table summarizes the effect of derivative instruments recognized in the statement of operations for the three months ended March 29, 2020 and March 31, 2019:

	Location of Losses	For the Three Months  Ended
	Recognized in	March 29,		March 31,
	Statement of Operations	2020		2019
		(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange contracts	Other (income) expense, net	$	4,011	$	3,934

(1) The table does not reflect the corresponding gains and losses from the remeasurement of the monetary assets and liabilities denominated in foreign currencies.

(2) For the three months ended March 29, 2020 and March 31, 2019, net gains from the remeasurement of monetary assets and liabilities denominated in foreign currencies were $2.0 million and $3.2 million, respectively.

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Accounting Policies (Policies)

3 Months Ended

Mar. 29, 2020

Basis of Presentation

Basis of Presentation

The consolidated interim financial statements include the accounts of Teradyne and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated. These interim financial statements are unaudited and reflect all normal recurring adjustments that are, in the opinion of management, necessary for the fair statement of such interim financial statements. Certain prior year amounts were reclassified to conform to the current year presentation. The December 31, 2019 condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America.

The accompanying financial information should be read in conjunction with the consolidated financial statements and notes thereto contained in Teradyne’s Annual Report on Form 10-K, filed with the U.S. Securities and Exchange Commission (“SEC”) on March 2, 2020, for the year ended December 31, 2019.

Preparation of Financial Statements and Use of Estimates

Preparation of Financial Statements and Use of Estimates

The preparation of consolidated financial statements requires management to make estimates and judgments that affect the amounts reported in the financial statements. Due to the COVID-19 pandemic, there has been uncertainty and disruption in the global economy and our markets. Teradyne is not aware of any specific event or circumstance that would require an update to its estimates or judgments or a revision of the carrying value of its assets or liabilities as of May 4, 2020, 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 significantly from these estimates under different assumptions or conditions. 

Goodwill

Goodwill

On January 26, 2017, the Financial Accounting Standards Board (“FASB”) issued ASU 2017-04, “Intangibles—Goodwill and Other (Topic 350): Simplifying the Accounting for Goodwill Impairment.” The new guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. Teradyne adopted this standard on January 1, 2020, on a prospective basis. The adoption of ASU 2017-04 did not have a material impact on the consolidated statement of operations, cash flows, or earnings per share. Teradyne assesses goodwill for impairment at least annually in the fourth quarter, as of December 31, on a reporting unit basis, or more frequently, when events and circumstances occur indicating that the recorded goodwill may be impaired. Under ASU 2017-04, goodwill impairment will be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. All other goodwill impairment guidance will remain largely unchanged. Entities will continue to have the option to perform a qualitative assessment to determine if a quantitative impairment test is necessary. The same one-step impairment test will be applied to goodwill at all reporting units, even those with zero or negative carrying amounts. Entities will be required to disclose the amount of goodwill at reporting units with zero or negative carrying amounts.

Credit Losses

Credit Losses

In June 2016, the FASB issued ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” This standard introduced the expected credit losses methodology for the measurement of credit losses on financial assets that are not measured at fair value through net income and replaces the “incurred loss” model with an “expected credit loss” model that requires consideration of a broader range of information to estimate expected credit losses over the lifetime of the asset. Teradyne adopted this standard on January 1, 2020 on a modified retrospective basis. The adoption of ASU 2016-13 did not have a material impact on the consolidated statement of operations, balance sheets, cash flows, or earnings per share.

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Acquisitions

3 Months Ended

Mar. 29, 2020

Acquisitions

C. ACQUISITIONS

AutoGuide LLC

On November 13, 2019, Teradyne acquired 100% of the membership interests of AutoGuide, LLC (“AutoGuide”), a maker of high-payload autonomous mobile robots (“AMRs”), based in Chelmsford, MA, an emerging and fast growing segment of the global forklift market. The total purchase price was approximately $81.6 million, which included cash paid of approximately $57.6 million and $24.0 million in fair value of contingent consideration payable upon achievement of certain performance targets, extending potentially through 2022. At March 29, 2020, the maximum contingent consideration that could be paid is $106.9 million.

The contingent consideration is payable upon achievement of certain thresholds and targets for revenue and earnings before interest and taxes for periods from January 1, 2019 to December 31, 2020, January 1, 2019 to December 31, 2021, and January 1, 2019 to December 31, 2022.

The valuation of the contingent consideration is dependent on the following assumptions: forecasted revenues, revenue volatility, earnings before interest and taxes, and discount rate. These assumptions were estimated based on a review of the historical and projected results.

The AutoGuide acquisition was accounted for as a business combination and, accordingly, the results have been included in Teradyne’s consolidated results of operations from the date of acquisition. AutoGuide’s AMRs are used for material transport of payloads up to 4,500 kg in manufacturing, warehouse and logistics applications. These products complement MiR’s lower payload products and expand the Industrial Automation segment, which is a key component of Teradyne’s growth strategy.

The allocation of the total purchase price to AutoGuide’s net tangible assets and identifiable intangible assets was based on their estimated fair values as of the acquisition date. The excess of the purchase price over the identifiable intangible assets and net tangible assets in the amount of  $41.2 million was allocated to goodwill, which is deductible for tax purposes. AutoGuide’s results have been included in Teradyne’s Industrial Automation segment from the date of acquisition.

The following table represents the final allocation of the purchase price:

	Purchase Price  Allocation
	(in thousands)
Goodwill	$	41,223
Intangible assets		37,660
Tangible assets acquired and liabilities assumed:
Other current assets		3,661
Non-current assets		1,227
Accounts payable and current liabilities		(1,223	)
Long-term other liabilities		(949	)
Total purchase price	$	81,599

Teradyne estimated the fair value of intangible assets using the income approach. Forecasted revenues is the key assumption for estimating the fair value. Acquired intangible assets are amortized on a straight-line basis over their estimated useful lives. Components of these intangible assets and their estimated useful lives at the acquisition date are as follows:

	Fair Value		Estimated Useful Life
	(in thousands)		(in years)
Developed technology	$	24,590		6.0
Customer relationships		7,360		6.0
Trademarks and tradenames		5,450		7.0
Backlog		260		0.3
Total intangible assets	$	37,660		6.1

The following unaudited pro forma information gives effect to the acquisition of AutoGuide as if the acquisition occurred on January 1, 2018. The unaudited pro forma results are not necessarily indicative of what actually would have occurred had the acquisition been in effect for the periods presented:

	For the Three Months Ended
	March 31, 2019
	(in thousands, except per share amounts)
Revenues	$	495,599
Net income	$	107,289
Net income per common share:
Basic	$	0.62
Diluted	$	0.61

Lemsys SA

On January 30, 2019, Teradyne acquired all of the issued and outstanding shares of Lemsys SA (“Lemsys”) for a total purchase price of approximately $9.1 million. Lemsys strengthens Teradyne’s position in the electrification trends of vehicles, solar and wind power, and industrial applications. The Lemsys acquisition was accounted for as a business combination and, accordingly, the results have been included in Teradyne’s Semiconductor Test segment from the date of acquisition. Teradyne’s final allocation of the purchase price was goodwill of $1.4 million, which is not deductible for tax purposes, acquired intangible assets of $4.6 million with an average estimated useful life of 5.2 years, and $3.1 million of net tangible assets. The acquisition was not material to Teradyne’s consolidated financial statements.

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Debt

3 Months Ended

Mar. 29, 2020

Debt

G. DEBT

Convertible Senior Notes

On December 12, 2016, Teradyne completed a private offering of $460.0 million aggregate principal amount of 1.25% convertible senior unsecured notes (the “Notes”) due December 15, 2023 and received net proceeds, after issuance costs, of approximately $450.8 million, $33.0 million of which was used to pay the net cost of the convertible note hedge transactions and $50.1 million of which was used to repurchase 2.0 million shares of Teradyne’s common stock under its existing stock repurchase program from purchasers of the Notes in privately negotiated transactions effected through one of the initial purchasers or its affiliates conducted concurrently with the pricing of the Note offering. The Notes will mature on December 15, 2023, unless earlier repurchased or converted. The Notes bear interest from December 12, 2016 at a rate of 1.25% per year payable semiannually in arrears on June 15 and December 15 of each year. The Notes will be convertible at the option of the noteholders at any time prior to the close of business on the business day immediately preceding September 15, 2023, only under the following circumstances: (1) during any calendar quarter beginning after March 31, 2017 (and only during such calendar quarter), if the closing sale price of Teradyne’s common stock, for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than 130% of the conversion price on each applicable trading day; (2) during the five business day period after any five consecutive trading day period (the “measurement period”) in which the trading price (as defined in the Indenture) per $1,000 principal amount of Notes for each trading day of the measurement period was less than 98% of the product of the closing sale price of the Teradyne’s common stock and the conversion rate on each such trading day; and (3) upon the occurrence of specified corporate events. On or after September 15, 2023 until the close of business on the second scheduled

trading day immediately preceding the maturity date, holders may convert their Notes at any time, regardless of the foregoing circumstances. Teradyne may satisfy its conversion obligation by paying or delivering cash, shares of its common stock or a combination of cash and shares of its common stock, at Teradyne’s election. As of March 29, 2020, the conversion price was approximately $31.61 per share of Teradyne’s common stock. The conversion rate is subject to adjustment under certain circumstances. As of May 4, 2020, eight holders exercised the option to convert seventeen thousand dollars worth of Notes.

Concurrent with the offering of the Notes, Teradyne entered into convertible note hedge transactions (the “Note Hedge Transactions”) with the initial purchasers or their affiliates (the “Option Counterparties”). The Note Hedge Transactions cover, subject to customary anti-dilution adjustments, the number of shares of the common stock that underlie the Notes, with a strike price equal to the conversion price of the Notes of $31.61. The Note Hedge Transactions cover, subject to customary anti-dilution adjustments, approximately 14.6 million shares of Teradyne’s common stock.

Separately and concurrent with the pricing of the Notes, Teradyne entered into warrant transactions with the Option Counterparties (the “Warrant Transactions”) in which it sold net-share-settled (or, at its election subject to certain conditions, cash-settled) warrants to the Option Counterparties. The Warrant Transactions cover, subject to customary anti-dilution adjustments, approximately 14.6 million shares of common stock. As of March 29, 2020, the strike price of the warrants was approximately $39.66 per share. The strike price is subject to adjustment under certain circumstances. The Warrant Transactions could have a dilutive effect to Teradyne’s common stock to the extent that the market price per share of Teradyne’s common stock, as measured under the terms of the Warrant Transactions, exceeds the applicable strike price of the warrants.

The Note Hedge Transactions are expected to reduce the potential dilution to Teradyne’s common stock upon any conversion of the Notes. However, the Warrant Transactions could separately have a dilutive effect to the extent that the market value per share of Teradyne’s common stock exceeds the applicable strike price of the warrant. The net cost of the Note Hedge Transactions, after being partially offset by the proceeds from the sale of the warrants, was approximately $33.0 million.

In connection with establishing their initial hedge of these convertible note hedge and warrant transactions, the Option Counterparties have entered into various derivative transactions with respect to Teradyne’s common stock and/or purchased shares of Teradyne’s common stock or other securities, including the Notes, concurrent with, or shortly after, the pricing of the Notes. In addition, the Option Counterparties may modify their hedge positions by entering into or unwinding various derivative transactions with respect to Teradyne’s common stock or by selling Teradyne’s common stock or other securities, including the Notes, in secondary market transactions (and may do so during any observation period related to the conversion of the Notes). These activities could adversely affect the value of Teradyne’s common stock and the Notes.

Teradyne considered the guidance of ASC 815-40, “Derivatives and Hedging—Contracts in Entity’s Own Equity,” and concluded that the convertible note hedge is both indexed to Teradyne’s common stock and should be classified in stockholders’ equity in its statements of financial position. The convertible note hedge is considered indexed to Teradyne’s common stock as the terms of the Note Hedge Transactions do not contain an exercise contingency and the settlement amount equals the difference between the fair value of a fixed number of Teradyne’s shares and a fixed strike price. Because the only variable that can affect the settlement amount is Teradyne’s stock price, which is an input to the fair value of a fixed-for-fixed option contract, the convertible note hedge is considered indexed to Teradyne’s common stock.

Teradyne assessed whether the convertible note hedge should be classified as equity under ASC 815-40. In the Note Hedge Transactions contract the settlement terms permit net cash settlement or net share settlement, at the option of Teradyne. Therefore, the criteria as set forth in ASC 815-40 were evaluated by Teradyne. In reviewing the criteria, Teradyne noted the following: (1) the convertible note hedge does not require Teradyne to issue shares; (2) there is no requirement to net cash settle the convertible note hedge for failure to make timely filings with the SEC; (3) in the case of termination, the convertible note hedge is settled in the same consideration as the holders of the underlying stock; (4) the counterparty does not have rights that rank higher than those of a shareholder of the stock underlying the convertible note hedge; and (5) there is no requirement to post collateral. Based on its analysis of those criteria, Teradyne concluded that the convertible note hedge should be recorded in equity and no further adjustment should be made in future periods to adjust the value of the convertible note hedge.

Teradyne analyzed the Warrant Transactions under ASC 815-40, “Derivatives and Hedging—Contracts in Entity’s Own Equity,” and other relevant literature, and determined that it met the criteria for classification as an equity transaction and is considered indexed to Teradyne’s common stock. As a result, Teradyne recorded the proceeds from the warrants as an increase to additional paid-in capital. Teradyne does not recognize subsequent changes in fair value of the warrants in its financial statements.

The provisions of ASC 470-20, “Debt with Conversion and Other Options,” are applicable to the Notes. ASC 470-20 requires Teradyne to separately account for the liability (debt) and equity (conversion feature) components of the Notes in a manner that reflects Teradyne’s nonconvertible debt borrowing rate at the date of issuance when interest cost is recognized in subsequent periods.

Teradyne allocated $100.8 million of the $460.0 million principal amount of the Notes to the equity component, which represents a discount to the debt and will be amortized to interest expense using the effective interest method through December 2023. Accordingly, Teradyne’s effective annual interest rate on the Notes will be approximately 5.0%. The Notes are classified as long-term debt in the balance sheet based on their December 15, 2023 maturity date. Debt issuance costs of approximately $7.2 million are being amortized to interest expense using the effective interest method over the seven-year term of the Notes. As of March 29, 2020, debt issuance costs were approximately $4.1 million.

The below tables represent the key components of Teradyne’s convertible senior notes:

	March 29, 2020		December 31, 2019
	(in thousands)
Debt Principal	$	459,987	$	460,000
Unamortized discount		61,521		65,313
Net Carrying amount of convertible debt	$	398,466	$	394,687

	For the Three Months  Ended
	March 29, 2020		March 31, 2019
	(in thousands)
Contractual interest expense on the coupon	$	1,438	$	1,438
Amortization of the discount component and debt issue fees recognized as interest expense		3,792		3,608
Total interest expense on the convertible debt	$	5,230	$	5,046

As of March 29, 2020, the remaining unamortized discount was $61.5 million, which will be amortized over 3.7 years using the effective interest rate method. The carrying amount of the equity component was $100.8 million. As of March 29, 2020, the if-converted value of the Notes was $798.3 million.

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Computation of Basic and Diluted Net Income Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 29, 2020	Mar. 31, 2019
Net Income Loss Per Common Share
Net income for basic and diluted net income per share		$ 176,191	$ 109,138
Weighted average common shares-basic		166,589	173,532
Incremental shares from assumed conversion of convertible notes	[1]	7,333	2,186
Convertible note hedge warrant shares	[2]	5,492
Employee stock purchase plan		25	11
Dilutive potential common shares		14,147	3,440
Weighted average common shares-diluted		180,736	176,972
Net income per common share-basic		$ 1.06	$ 0.63
Net income per common share-diluted		$ 0.97	$ 0.62
Restricted Stock Units
Net Income Loss Per Common Share
Incremental shares attributable to share based payment arrangements		1,163	1,021
Stock Options
Net Income Loss Per Common Share
Incremental shares attributable to share based payment arrangements		134	222

[1] Incremental shares from assumed conversion of the convertible notes was calculated using the difference between the average Teradyne stock price for the period and the conversion price of $31.61, multiplied by 14.6 million shares. The result of this calculation, representing the total intrinsic value of the convertible debt, was divided by the average Teradyne stock price for the period.

[2] Convertible notes hedge warrant shares were calculated using the difference between the average Teradyne stock price for the period and the warrant price of $39.66, multiplied by 14.6 million shares. The result of this calculation, representing the total intrinsic value of the warrant, was divided by the average Teradyne stock price for the period.

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Schedule of Estimated Fair Value of TSR Performance-Based Restricted Stock Unit Awards Assumptions (Detail) - TSR Performance-Based Restricted Stock Units	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award
Risk-free interest rate	1.50%	2.60%
Expected historical volatility	34.90%	31.80%
Dividend yield	0.60%	1.00%
New York Stock Exchange Composite Index
Share-based Compensation Arrangement by Share-based Payment Award
Expected historical volatility	11.40%	12.00%

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Deferred Revenue and Customer Advances (Detail) - USD ($) $ in Thousands	Mar. 29, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Deferred Revenue Arrangement
Maintenance, service and training	$ 68,483	$ 63,815
Extended warranty	33,503	30,677	$ 27,242	$ 27,422
Customer advances, undelivered performance obligations and other	47,620	56,358
Total deferred revenue and customer advances	$ 149,606	$ 150,850

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Goodwill and Acquired Intangible Assets - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Goodwill and Intangible Assets Disclosure [Line Items]
Acquired intangible assets amortization	$ 9,891	$ 10,634

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Pro Forma Results Under Acquisition (Detail) - Mobile Industrial Robots (MiR) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($) $ / shares
Business Acquisition [Line Items]
Revenues | $	$ 495,599
Net income | $	$ 107,289
Net income per common share, basic | $ / shares	$ 0.62
Net income per common share, diluted | $ / shares	$ 0.61

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Composition of Inventories, Net (Detail) - USD ($) $ in Thousands	Mar. 29, 2020	Dec. 31, 2019
Inventory [Line Items]
Raw material	$ 102,109	$ 118,595
Work-in-process	39,848	32,695
Finished goods	41,021	45,401
Inventories, net	$ 182,978	$ 196,691

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Schedule of Reported Financial Assets and Liabilities (Detail) - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	Mar. 29, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	$ 905,352	$ 1,016,245
Liabilities	20,726	39,908
Other Current Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Liabilities	254	203
Cash and Cash Equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	593,494	773,924
Marketable securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	211,001	137,303
Long-term marketable securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	100,513	104,490
Prepayments and other current assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	344	528
Contingent Consideration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Liabilities	662	9,106
Long Term Contingent Consideration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Liabilities	19,810	30,599
Quoted Prices in Active Markets for Identical Instruments (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	540,337	754,920
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Cash and Cash Equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	514,636	722,260
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Long-term marketable securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	25,701	32,660
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	365,015	261,325
Liabilities	254	203
Significant Other Observable Inputs (Level 2) | Other Current Liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Liabilities	254	203
Significant Other Observable Inputs (Level 2) | Cash and Cash Equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	78,858	51,664
Significant Other Observable Inputs (Level 2) | Marketable securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	211,001	137,303
Significant Other Observable Inputs (Level 2) | Long-term marketable securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	74,812	71,830
Significant Other Observable Inputs (Level 2) | Prepayments and other current assets
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Assets	344	528
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Liabilities	20,472	39,705
Significant Unobservable Inputs (Level 3) | Contingent Consideration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Liabilities	662	9,106
Significant Unobservable Inputs (Level 3) | Long Term Contingent Consideration
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Liabilities	$ 19,810	$ 30,599

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Schedule of Net Periodic Pension and Postretirement (income) Cost (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
UNITED STATES
Defined Benefit Plan Disclosure
Service cost	$ 433	$ 405
Interest cost	1,522	1,795
Expected return on plan assets	(1,233)	(1,511)
Total net periodic pension cost	722	689
Foreign Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure
Service cost	201	188
Interest cost	115	173
Expected return on plan assets	(15)	(7)
Total net periodic pension cost	301	354
Postretirement Benefit Plans
Defined Benefit Plan Disclosure
Service cost	11	9
Interest cost	62	85
Amortization of prior service cost	(2)	(48)
Total net periodic pension cost	$ 71	$ 46

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Schedule of Carrying Amounts and Fair Values of Financial Instruments (Detail) - USD ($) $ in Thousands	Mar. 29, 2020	Dec. 31, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Marketable securities	$ 291,050	$ 216,021
Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Cash and cash equivalents	593,494	773,924
Marketable securities	311,514	241,793
Derivative assets	344	528
Contingent consideration	20,472	39,705
Derivative liabilities	254	203
Convertible debt	398,466	394,687
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Cash and cash equivalents	593,494	773,924
Marketable securities	311,514	241,793
Derivative assets	344	528
Contingent consideration	20,472	39,705
Derivative liabilities	254	203
Convertible debt	$ 829,438	$ 1,010,275

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Schedule of Derivative Instruments in Statement of Financial Position at Fair Value (Detail) - USD ($) $ in Thousands	Mar. 29, 2020	Dec. 31, 2019
Derivatives, Fair Value [Line Items]
Derivative assets (liabilities), net	$ 90	$ 325
Not Designated as Hedging Instrument | Foreign currency forward contracts | Prepayments
Derivatives, Fair Value [Line Items]
Derivative assets	344	528
Not Designated as Hedging Instrument | Foreign currency forward contracts | Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ (254)	$ (203)

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Segment Information - Additional Information (Detail)	3 Months Ended
	Mar. 29, 2020 Segment
Segment Reporting Information [Line Items]
Number of Operating Segments	4

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Components of Intangible Assets and Their Estimated Useful Lives at Acquisition Date (Detail) - Mobile Industrial Robots (MiR) $ in Thousands	Apr. 25, 2018 USD ($)
Business Acquisition [Line Items]
Total intangible assets, fair value	$ 37,660
Total intangible assets, estimated useful life, years	6 years 1 month 6 days
Developed technology
Business Acquisition [Line Items]
Total intangible assets, fair value	$ 24,590
Total intangible assets, estimated useful life, years	6 years
Customer Relationships
Business Acquisition [Line Items]
Total intangible assets, fair value	$ 7,360
Total intangible assets, estimated useful life, years	6 years
Trademarks and tradenames
Business Acquisition [Line Items]
Total intangible assets, fair value	$ 5,450
Total intangible assets, estimated useful life, years	7 years
Customer backlog
Business Acquisition [Line Items]
Total intangible assets, fair value	$ 260
Total intangible assets, estimated useful life, years	3 months 18 days

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Income Taxes (Tables)

3 Months Ended

Mar. 29, 2020

Reconciliation of Effective Tax Rate

A reconciliation of the United States federal statutory corporate tax rate to Teradyne’s effective tax rate was as follows:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
US statutory federal tax rate		21.0	%		21.0	%
Foreign taxes		(5.7	)		(3.1	)
Tax credits		(1.9	)		(3.0	)
Discrete benefit related to equity compensation		(4.1	)		(4.1	)
Discrete benefit related to release of reserves for uncertain tax positions		—			(27.6	)
Other, net		1.3			0.7
Effective tax rate		10.6	%		(16.1	)%

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Accumulated Other Comprehensive (Loss) Income (Tables)

3 Months Ended

Mar. 29, 2020

Changes in Accumulated Other Comprehensive (Loss) Income

Changes in accumulated other comprehensive (loss) income, which are presented net of tax, consist of the following:

	Foreign Currency Translation Adjustment			Unrealized Gains (Losses) on Marketable Securities			Retirement Plans Prior Service Credit			Total
	(in thousands)
Three Months Ended March 29, 2020
Balance at December 31, 2019, net of tax of $0, $946, $(1,124)	$	(23,514	)	$	3,480		$	1,180		$	(18,854	)
Other comprehensive income (loss) before reclassifications, net of tax of $0, $187, $0		(8,779	)		1,037			—			(7,742	)
Amounts reclassified from accumulated other comprehensive income, net of tax of $0, $(145), $0		—			(515	)		(2	)		(517	)
Net current period other comprehensive income (loss), net of tax of $0, $42, $0		(8,779	)		522			(2	)		(8,259	)
Balance at March 29, 2020, net of tax of $0, $988, $(1,124)	$	(32,293	)	$	4,002		$	1,178		$	(27,113	)
Three Months Ended March 31, 2019
Balance at December 31, 2018, net of tax of $0, $(521), $(1,081)	$	(12,523	)	$	(1,845	)	$	1,328		$	(13,040	)
Other comprehensive income (loss) before reclassifications, net of tax of $0, $577, $0		(4,659	)		2,100			—			(2,559	)
Amounts reclassified from accumulated other comprehensive income, net of tax of $0, $(20), $(11)		—			(70	)		(37	)		(107	)
Net current period other comprehensive income (loss), net of tax of $0, $557, $(11)		(4,659	)		2,030			(37	)		(2,666	)
Balance as March 31, 2019, net of tax of $0, $36, $(1,092)	$	(17,182	)	$	185		$	1,291		$	(15,706	)

Reclassifications Out of Accumulated Other Comprehensive Income to Statements of Operations

Reclassifications out of accumulated other comprehensive (loss) income to the statement of operations for the three months ended March 29, 2020 and March 31, 2019 were as follows:

	For the Three Months Ended				Affected Line Item in the Statements of Operations
	March 29,		March 31,
	2020		2019
Details about Accumulated Other Comprehensive (loss) Income Components	(in thousands)
Available-for-sale marketable securities:
Unrealized gains, net of tax of $145, $20	$	515	$	70		Interest income
Defined benefit pension and postretirement plans:
Amortization of prior service benefit, net of tax of $0, $11		2		37		(a)
Total reclassifications, net of tax of $145, $31	$	517	$	107		Net income

(a) The amortization of prior service benefit is included in the computation of net periodic pension cost and postretirement benefit. See Note P: “Retirement Plans.”

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Subsequent Events - Additional Information (Detail) - Subsequent Event $ in Millions	May 01, 2020 USD ($)
Subsequent Event [Line Items]
Term of loan, years	3 years
Line of Credit Facility, Maximum Borrowing Capacity	$ 400.0
Line of Credit Facility, Capacity Available for Specific Purpose Other than for Trade Purchases	$ 150.0
Line of Credit Facility, Interest Rate Description	The interest rates applicable to loans under the Credit Facility are, at Teradyne’s option, equal to either a base rate plus a margin ranging from 0.50% to 1.25% per annum or LIBOR, a minimum of 0.75%, plus a margin ranging from 1.50% to 2.25% per annum, based on the consolidated leverage ratio of Teradyne. In addition, Teradyne will pay a commitment fee on the unused portion of the commitments under the Credit Facility ranging from 0.25% to 0.40% per annum, based on the then applicable consolidated leverage ratio.
Collateral Pledged [Member]
Subsequent Event [Line Items]
Percent Of Available For Sale Securities Restricted	65.00%

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Stock-Based Compensation

3 Months Ended

Mar. 29, 2020

Stock-Based Compensation

K. STOCK-BASED COMPENSATION

Under Teradyne’s stock compensation plans, Teradyne grants service-based restricted stock units, performance-based restricted stock units and stock options, and employees are eligible to purchase Teradyne’s common stock through its Employee Stock Purchase Plan (“ESPP”).

Service-based restricted stock unit awards granted to employees vest in equal annual installments over four years. Restricted stock unit awards granted to non-employee directors vest after a one-year period, with 100% of the award vesting on the earlier of (a) the first anniversary of the grant date or (b) the date of the following year’s Annual Meeting of Shareholders. Teradyne expenses the cost of the restricted stock unit awards subject to service-based vesting, which is determined to be the fair market value of the shares at the date of grant, ratably over the period during which the restrictions lapse.

Performance-based restricted stock units (“PRSUs”) granted to Teradyne’s executive officers may have a performance metric based on relative total shareholder return (“TSR”). Teradyne’s three-year TSR performance is measured against the New York Stock Exchange (“NYSE”) Composite Index. The final number of TSR PRSUs that vest will vary based upon the level of performance achieved from 0% to 200% of the target shares capped at four times the grant date value for grants prior to 2019. The TSR PRSUs will vest upon the three-year anniversary of the grant date. The TSR PRSUs are valued using a Monte Carlo simulation model. The number of units expected to be earned, based upon the achievement of the TSR market condition, is factored into the grant date Monte Carlo valuation. Compensation expense is recognized on a straight-line basis over the shorter of the three-year service period or the period from the grant to the date described in the retirement provisions below. Compensation expense for executive officers meeting the retirement provisions prior to the grant date is recognized during the 365 days following the grant. Compensation expense is recognized regardless of the eventual number of units that are earned based upon the market condition, provided the executive officer remains an employee at the end of the three-year period. Compensation expense is reversed if at any time during the three-year service period the executive officer is no longer an employee, subject to the retirement and termination eligibility provisions noted below.

PRSUs granted to Teradyne’s executive officers may also have a performance metric based on three-year cumulative non-GAAP profit before interest and tax (“PBIT”) as a percent of Teradyne’s revenue. Non-GAAP PBIT is a financial measure equal to GAAP income from operations less restructuring and other, net; amortization of acquired intangible assets; acquisition and divestiture related charges or credits; pension actuarial gains and losses; non-cash convertible debt interest expense; and other non-recurring gains and charges. The final number of PBIT PRSUs that vest will vary based upon the level of performance achieved from 0% to 200% of the target shares. The PBIT PRSUs will vest upon the three-year anniversary of the grant date. Compensation expense is recognized on a straight-line basis over the shorter of the three-year service period or the period from the grant date to the date described in the retirement provisions below. Compensation expense for executive officers meeting the retirement provisions prior to the grant date is recognized during the 365 days following the grant. Compensation expense is recognized based on the number of units that are earned based upon the three-year Teradyne PBIT as a percent of Teradyne’s revenue, provided the executive officer remains an employee at the end of the three-year period subject to the retirement and termination eligibility provisions noted below.

If a PRSU recipient’s employment ends prior to the determination of the performance percentage due to (1) permanent disability or death or (2) retirement or termination other than for cause, after attaining both at least age sixty and at least ten years of service, then all or a portion of the recipient’s PRSUs (based on the actual performance percentage achieved on the determination date) will vest on the date the performance percentage is determined. Except as set forth in the preceding sentence, no PRSUs will vest if the executive officer is no longer an employee at the end of the three-year period.

Stock options to purchase Teradyne’s common stock at 100% of the fair market value on the grant date vest in equal annual installments over four years from the grant date and have a maximum term of seven years.

During the three months ended March 29, 2020 and March 31, 2019, Teradyne granted 0.4 million and 0.6 million of service-based restricted stock unit awards to employees at a weighted average grant date fair value of $70.98 and $35.88, respectively.

During the three months ended March 29, 2020 and March 31, 2019, Teradyne granted 0.1 million of PBIT PRSUs with a grant date fair value of $70.94 and $35.67, respectively.

During the three months ended March 29, 2020 and March 31, 2019, Teradyne granted 0.1 million TSR PRSUs, with a grant date fair value of $89.93 and $48.47, respectively. The fair value was estimated using the Monte Carlo simulation model with the following assumptions:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
Risk-free interest rate		1.5	%		2.6	%
Teradyne volatility-historical		34.9	%		31.8	%
NYSE Composite Index volatility-historical		11.4	%		12.0	%
Dividend yield		0.6	%		1.0	%

Expected volatility was based on the historical volatility of Teradyne’s stock and the NYSE Composite Index for the 2020 and 2019 grant over the most recent three-year period. The risk-free interest rate was determined using the U.S. Treasury yield curve in effect at the time of grant. Dividend yield was based upon an estimated annual dividend amount of $0.40 per share divided by Teradyne’s stock price on the grant date of $72.10 for the 2020 grant and an estimated annual dividend amount of $0.36 per share divided by Teradyne’s stock price on the grant date of $36.75 for the 2019 grant.

During the three months ended March 29, 2020 and March 31, 2019, Teradyne granted 0.1 million of service-based stock options to executive officers at a weighted average grant date fair value of $20.67 and $10.26, respectively.

The fair value of stock options was estimated using the Black-Scholes option-pricing model with the following assumptions:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
Expected life (years)		5.0			5.0
Risk-free interest rate		1.6	%		2.6	%
Volatility-historical		31.6	%		30.1	%
Dividend yield		0.6	%		1.0	%

Teradyne determined the stock options’ expected life based upon historical exercise data for executive officers, the age of the executive officers and the terms of the stock option grant. Volatility was determined using historical volatility for a period equal to the expected life. The risk-free interest rate was determined using the U.S. Treasury yield curve in effect at the time of grant. Dividend yield was based upon an estimated annual dividend amount of $0.40 per share divided by Teradyne’s stock price on the grant date of $72.10 for the 2020 grant and an estimated annual dividend amount of $0.36 per share divided by Teradyne’s stock price on the grant date of $36.75 for the 2019 grant.

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Restructuring and Other

3 Months Ended

Mar. 29, 2020

Restructuring and Other

O. RESTRUCTURING AND OTHER

During the three months ended March 29, 2020, Teradyne recorded a gain of $10.0 million for the decrease in the fair value of the AutoGuide and MiR contingent consideration liabilities, partially offset by $1.4 million of acquisition related compensation and expenses and  $0.7 million of severance charges related to headcount reductions primarily in Industrial Automation and Semiconductor Test.

During the three months ended March 31, 2019, Teradyne recorded an expense of $3.0 million for the increase in the fair value of the MiR contingent consideration liability, $1.3 million of acquisition related compensation and expenses, and $0.8 million of severance charges related to headcount reductions primarily in Semiconductor Test.

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Segment Information

3 Months Ended

Mar. 29, 2020

Segment Reporting [Abstract]

Segment Information

S. SEGMENT INFORMATION

Teradyne has four reportable segments (Semiconductor Test, System Test, Industrial Automation and Wireless Test). Each of the Semiconductor Test, System Test, and Wireless Test segments is also an individual operating segment. The Industrial Automation reportable segment consists of operating segments with discrete financial information, which have been combined into one reportable segment as they share similar economic characteristics, types of products, production processes, distribution channels, and currency risks. The Semiconductor Test segment includes operations related to the design, manufacturing and marketing of semiconductor test products and services. The System Test segment includes operations related to the design, manufacturing and marketing of products and services for defense/aerospace instrumentation test, storage test and circuit-board test. The Industrial Automation segment includes operations related to the design, manufacturing and marketing of collaborative robotic arms, autonomous mobile robots and advanced robotic control software. The Wireless Test segment includes operations related to the design, manufacturing and marketing of wireless test products and services.

Teradyne evaluates performance based on several factors, of which the primary financial measure is business segment income (loss) before income taxes. The accounting policies of the business segments in effect are described in Note B: “Accounting Policies” in Teradyne’s Annual Report on Form 10-K for the year ended December 31, 2019.

Segment information for the three months ended March 29, 2020 and March 31, 2019 is as follows:

	Semiconductor Test		System Test		Industrial Automation			Wireless Test		Corporate and Other			Consolidated
	(in thousands)
Three Months Ended March 29, 2020
Revenues	$	484,489	$	116,076	$	60,305		$	43,485	$	—		$	704,355
Income (loss) before taxes (1)(2)		153,816		48,407		(15,335	)		10,220		(39	)		197,069
Total assets (3)		921,108		137,056		643,011			106,400		1,012,813			2,820,388
Three Months Ended March 31, 2019
Revenues	$	340,853	$	58,220	$	66,136		$	29,041	$	(151	)	$	494,099
Income (loss) before taxes (1)(2)		83,049		15,340		(5,295	)		3,628		(2,743	)		93,979
Total assets (3)		770,967		98,916		596,899			73,066		1,076,795			2,616,643

(1) Included in Corporate and Other are: contingent consideration adjustments, severance charges, interest income, interest expense, net foreign exchange gains (losses), intercompany eliminations and acquisition related charges.

(2) Included in income (loss) before taxes are charges and credits related to restructuring and other, and inventory charges.

(3) Total assets are attributable to each segment. Corporate assets consist of cash and cash equivalents, marketable securities and certain other assets.

Included in each segment are charges and credits in the following line items in the statements of operations:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
	(in thousands)
Semiconductor Test:
Cost of revenues—inventory charge	$	3,026		$	1,174
Industrial Automation:
Restructuring and other—acquisition related expenses and compensation		618			1,261
Corporate and Other:
Restructuring and other—MiR contingent consideration adjustment		(2,878	)		3,003
Restructuring and other—AutoGuide contingent consideration adjustment		(7,142	)		—
Restructuring and other—acquisition related expenses and compensation		741			—

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Foreign currency translation adjustments, tax	$ 0	$ 0
Unrealized gains (losses) on marketable securities arising during period, net of tax	187	577
Reclassification adjustment for (gains) losses included in net income, net of tax	(145)	(20)
Amortization of prior service benefit included in net periodic pension and post-retirement benefit, net of tax	$ 0	$ (11)

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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 29, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 593,494	$ 773,924
Marketable securities	211,001	137,303
Accounts receivable, less allowance for doubtful accounts of $1,813 and $1,736 at March 29, 2020 and December 31, 2019, respectively	487,365	362,368
Inventories, net	182,978	196,691
Prepayments and other current assets	227,740	188,598
Total current assets	1,702,578	1,658,884
Property, plant and equipment, net	332,241	320,216
Operating lease right-of-use assets, net	58,808	57,539
Marketable securities	100,513	104,490
Deferred tax assets	74,493	75,185
Retirement plans assets	18,229	18,457
Other assets	9,272	10,332
Acquired intangible assets, net	114,321	125,480
Goodwill	409,933	416,431
Total assets	2,820,388	2,787,014
Current liabilities:
Accounts payable	129,633	126,617
Accrued employees' compensation and withholdings	119,226	163,883
Deferred revenue and customer advances	98,815	104,876
Other accrued liabilities	87,274	70,871
Operating lease liabilities	19,591	19,476
Contingent consideration	662	9,106
Income taxes payable	58,760	44,200
Total current liabilities	513,961	539,029
Retirement plans liabilities	125,970	134,471
Long-term deferred revenue and customer advances	50,791	45,974
Long-term other accrued liabilities	19,941	19,535
Long-term contingent consideration	19,810	30,599
Deferred tax liabilities	11,628	14,070
Long-term operating lease liabilities	46,328	45,849
Long-term incomes taxes payable	82,820	82,642
Debt	398,466	394,687
Total liabilities	1,269,715	1,306,856
Commitments and contingencies (See Note Q)
SHAREHOLDERS' EQUITY
Common stock, $0.125 par value, 1,000,000 shares authorized, 165,938 and 166,410 shares issued and outstanding at March 29, 2020 and December 31, 2019, respectively	20,742	20,801
Additional paid-in capital	1,721,367	1,720,129
Accumulated other comprehensive loss	(27,113)	(18,854)
Accumulated deficit	(164,323)	(241,918)
Total shareholders' equity	1,550,673	1,480,158
Total liabilities and shareholders' equity	$ 2,820,388	$ 2,787,014

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Commitments and Contingencies - Additional Information (Detail) $ in Millions	Mar. 29, 2020 USD ($)
Purchase Commitment, Excluding Long-term Commitment
Aggregate purchase commitments	$ 543.8
Purchase commitments less than one year	$ 529.4

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Schedule of Available for Sale Marketable Securities (Detail) - USD ($) $ in Thousands	Mar. 29, 2020	Dec. 31, 2019
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	$ 286,073	$ 211,596
Available-for-sale marketable securities, Unrealized Gain	6,164	4,687
Available-for-sale marketable securities, Unrealized (Loss)	(1,187)	(262)
Available-for-sale marketable securities, Fair Market Value	291,050	216,021
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	42,283	23,999
U.S. Treasury Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	82,680	42,167
Available-for-sale marketable securities, Unrealized Gain	2,958	431
Available-for-sale marketable securities, Unrealized (Loss)	(6)	(216)
Available-for-sale marketable securities, Fair Market Value	85,632	42,382
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	96	17,556
Commercial Paper
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	101,915	54,124
Available-for-sale marketable securities, Unrealized Gain	33	26
Available-for-sale marketable securities, Unrealized (Loss)	(1)	(1)
Available-for-sale marketable securities, Fair Market Value	101,947	54,149
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	1,296	1,391
Corporate Debt Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	65,696	93,267
Available-for-sale marketable securities, Unrealized Gain	2,951	4,081
Available-for-sale marketable securities, Unrealized (Loss)	(1,180)	(41)
Available-for-sale marketable securities, Fair Market Value	67,467	97,307
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	40,891	2,009
Certificates of Deposit and Time Deposits
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	25,769	4,751
Available-for-sale marketable securities, Unrealized Gain	7
Available-for-sale marketable securities, Fair Market Value	25,776	4,751
U.S. Government Agency Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	4,335	9,942
Available-for-sale marketable securities, Unrealized Gain	67	14
Available-for-sale marketable securities, Unrealized (Loss)	0	(4)
Available-for-sale marketable securities, Fair Market Value	4,402	9,952
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	0	3,043
Debt Mutual Funds
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	5,089	6,753
Available-for-sale marketable securities, Unrealized Gain	148	135
Available-for-sale marketable securities, Fair Market Value	5,237	6,888
Non-U.S. Government Securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	589	592
Available-for-sale marketable securities, Fair Market Value	$ 589	$ 592

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Schedule of Effect of Derivative Instruments in Statement of Operations Recognized (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Other (income) expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Losses on derivatives recognized in statements of operations	$ 4,011	$ 3,934

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Schedule of Segment Information (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 29, 2020	Mar. 31, 2019	Dec. 31, 2019
Segment Reporting Information [Line Items]
Revenues	[1]	$ 704,355	$ 494,099
Income (loss) before taxes		197,069	93,979
Total assets		2,820,388	2,616,643	$ 2,787,014
Semiconductor Test
Segment Reporting Information [Line Items]
Revenues		484,489	340,853
Income (loss) before taxes		153,816	83,049
Total assets		921,108	770,967
System Test
Segment Reporting Information [Line Items]
Revenues	[1]	116,076	58,220
Income (loss) before taxes		48,407	15,340
Total assets		137,056	98,916
Industrial Automation
Segment Reporting Information [Line Items]
Revenues		60,305	66,136
Income (loss) before taxes		(15,335)	(5,295)
Total assets		643,011	596,899
Wireless Test
Segment Reporting Information [Line Items]
Revenues	[1]	43,485	29,041
Income (loss) before taxes		10,220	3,628
Total assets		106,400	73,066
Corporate And Others [Member]
Segment Reporting Information [Line Items]
Revenues		0	(151)
Income (loss) before taxes		(39)	(2,743)
Total assets		$ 1,012,813	$ 1,076,795

[1] Includes $1.8 million and $1.7 million in 2020 and 2019, for leases of Teradyne’s systems recognized outside ASC 606 “Revenue from Contracts with Customers.

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Retirement Plans (Tables)

3 Months Ended

Mar. 29, 2020

Defined Benefit Pension Plans

Net Periodic Pension and Postretirement Benefit Costs

For the three months ended March 29, 2020 and March 31, 2019, Teradyne’s net periodic pension cost was comprised of the following:

	For the Three Months Ended
	March 29, 2020						March 31, 2019
	United States			Foreign			United States			Foreign
	(in thousands)
Service cost	$	433		$	201		$	405		$	188
Interest cost		1,522			115			1,795			173
Expected return on plan assets		(1,233	)		(15	)		(1,511	)		(7	)
Total net periodic pension cost	$	722		$	301		$	689		$	354

Postretirement Benefit Plans

Net Periodic Pension and Postretirement Benefit Costs

For the three months ended March 29, 2020 and March 31, 2019, Teradyne’s net periodic postretirement benefit cost was comprised of the following:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
	(in thousands)
Service cost	$	11		$	9
Interest cost		62			85
Amortization of prior service credit		(2	)		(48	)
Total net periodic postretirement benefit cost	$	71		$	46

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Stock-Based Compensation (Tables)

3 Months Ended

Mar. 29, 2020

Schedule of Estimated Fair Value of TSR Performance-Based Restricted Stock Unit Awards Assumptions

The fair value was estimated using the Monte Carlo simulation model with the following assumptions:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
Risk-free interest rate		1.5	%		2.6	%
Teradyne volatility-historical		34.9	%		31.8	%
NYSE Composite Index volatility-historical		11.4	%		12.0	%
Dividend yield		0.6	%		1.0	%

Fair Value of Stock Options Using Assumptions

The fair value of stock options was estimated using the Black-Scholes option-pricing model with the following assumptions:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
Expected life (years)		5.0			5.0
Risk-free interest rate		1.6	%		2.6	%
Volatility-historical		31.6	%		30.1	%
Dividend yield		0.6	%		1.0	%

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Final Allocation of Purchase Price (Detail) - USD ($) $ in Thousands	Mar. 29, 2020	Dec. 31, 2019	Apr. 25, 2018
Business Acquisition [Line Items]
Goodwill	$ 409,933	$ 416,431
Mobile Industrial Robots (MiR)
Business Acquisition [Line Items]
Goodwill			$ 41,223
Intangible assets			37,660
Other current assets			3,661
Non-current assets			1,227
Accounts payable and current liabilities			(1,223)
Long-term other liabilities			(949)
Total purchase price			$ 81,599

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Shareholders' Equity

3 Months Ended

Mar. 29, 2020

Equity [Abstract]

Shareholders' Equity

T. SHAREHOLDERS’ EQUITY

Stock Repurchase Program

In January 2020, Teradyne’s Board of Directors authorized a new stock repurchase program for up to $1.0 billion of common stock. Effective April 1, 2020, Teradyne suspended its share repurchase program.

During the three months ended March 29, 2020, Teradyne repurchased 1.3 million shares of common stock for $79.0 million at an average price of $58.81 per share. During the three months ended March 31, 2019, Teradyne repurchased 4.5 million shares of common stock for $156.5 million at an average price of $35.12 per share.

The total price includes commissions and is recorded as a reduction to retained earnings.

Dividend

Holders of Teradyne’s common stock are entitled to receive dividends when they are declared by Teradyne’s Board of Directors.

In January 2020, Teradyne’s Board of Directors declared a quarterly cash dividend of $0.10 per share. Dividend payments for the three months ended March 29, 2020 were $16.7 million. In January 2019, Teradyne’s Board of Directors declared a quarterly cash dividend of $0.09 per share. Dividend payments for the three months ended March 31, 2019 were $15.6 million.

While Teradyne declared a quarterly cash dividend and has suspended its share repurchase program, it may reduce or eliminate the cash dividend and may implement a new share repurchase program in the future. Future cash dividends and stock repurchases are subject to the discretion of Teradyne’s Board of Directors, which will consider, among other things, Teradyne’s earnings, capital requirements and financial condition.

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Accumulated Other Comprehensive (Loss) Income

3 Months Ended

Mar. 29, 2020

Accumulated Other Comprehensive Income (Loss)

L. ACCUMULATED OTHER COMPREHENSIVE (LOSS) INCOME

Changes in accumulated other comprehensive (loss) income, which are presented net of tax, consist of the following:

	Foreign Currency Translation Adjustment			Unrealized Gains (Losses) on Marketable Securities			Retirement Plans Prior Service Credit			Total
	(in thousands)
Three Months Ended March 29, 2020
Balance at December 31, 2019, net of tax of $0, $946, $(1,124)	$	(23,514	)	$	3,480		$	1,180		$	(18,854	)
Other comprehensive income (loss) before reclassifications, net of tax of $0, $187, $0		(8,779	)		1,037			—			(7,742	)
Amounts reclassified from accumulated other comprehensive income, net of tax of $0, $(145), $0		—			(515	)		(2	)		(517	)
Net current period other comprehensive income (loss), net of tax of $0, $42, $0		(8,779	)		522			(2	)		(8,259	)
Balance at March 29, 2020, net of tax of $0, $988, $(1,124)	$	(32,293	)	$	4,002		$	1,178		$	(27,113	)
Three Months Ended March 31, 2019
Balance at December 31, 2018, net of tax of $0, $(521), $(1,081)	$	(12,523	)	$	(1,845	)	$	1,328		$	(13,040	)
Other comprehensive income (loss) before reclassifications, net of tax of $0, $577, $0		(4,659	)		2,100			—			(2,559	)
Amounts reclassified from accumulated other comprehensive income, net of tax of $0, $(20), $(11)		—			(70	)		(37	)		(107	)
Net current period other comprehensive income (loss), net of tax of $0, $557, $(11)		(4,659	)		2,030			(37	)		(2,666	)
Balance as March 31, 2019, net of tax of $0, $36, $(1,092)	$	(17,182	)	$	185		$	1,291		$	(15,706	)

Reclassifications out of accumulated other comprehensive (loss) income to the statement of operations for the three months ended March 29, 2020 and March 31, 2019 were as follows:

	For the Three Months Ended				Affected Line Item in the Statements of Operations
	March 29,		March 31,
	2020		2019
Details about Accumulated Other Comprehensive (loss) Income Components	(in thousands)
Available-for-sale marketable securities:
Unrealized gains, net of tax of $145, $20	$	515	$	70		Interest income
Defined benefit pension and postretirement plans:
Amortization of prior service benefit, net of tax of $0, $11		2		37		(a)
Total reclassifications, net of tax of $145, $31	$	517	$	107		Net income

(a) The amortization of prior service benefit is included in the computation of net periodic pension cost and postretirement benefit. See Note P: “Retirement Plans.”

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Retirement Plans

3 Months Ended

Mar. 29, 2020

Retirement Plans

P. RETIREMENT PLANS

ASC 715, “Compensation—Retirement Benefits” requires an employer with a defined benefit plan or other postretirement benefit plan to recognize an asset or a liability on its balance sheet for the overfunded or underfunded status of the plan. The pension asset or liability represents a difference between the fair value of the pension plan’s assets and the projected benefit obligation at December 31. Teradyne uses a December 31 measurement date for all of its plans.

Defined Benefit Pension Plans

Teradyne has defined benefit pension plans covering a portion of domestic employees and employees of certain non-U.S. subsidiaries. Benefits under these plans are based on employees’ years of service and compensation. Teradyne’s funding policy is to make contributions to these plans in accordance with local laws and to the extent that such contributions are tax deductible. The assets

Postretirement Benefit Plan

In addition to receiving pension benefits, Teradyne employees in the United States who meet early retirement eligibility requirements as of their termination dates may participate in Teradyne’s Welfare Plan, which includes medical and dental benefits up to age 65. Death benefits provide a fixed sum to retirees’ survivors and are available to all retirees. Substantially all of Teradyne’s current U.S. employees could become eligible for these benefits, and the existing benefit obligation relates primarily to those employees.

For the three months ended March 29, 2020 and March 31, 2019, Teradyne’s net periodic postretirement benefit cost was comprised of the following:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
	(in thousands)
Service cost	$	11		$	9
Interest cost		62			85
Amortization of prior service credit		(2	)		(48	)
Total net periodic postretirement benefit cost	$	71		$	46

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CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive (Loss) Income	Accumulated Deficit
Balance at Dec. 31, 2018	$ 1,522,354	$ 21,940	$ 1,671,645	$ (13,040)	$ (158,191)
Balance, Shares at Dec. 31, 2018		175,522
Net issuance of common stock under stock-based plans	(49)	$ 161	(210)
Net issuance of common stock under stock-based plans (in shares)		1,287
Stock-based compensation expense	8,562		8,562
Repurchase of common stock	$ (151,470)	$ (557)			(150,913)
Repurchase of common stock (in shares)	4,500	(4,456)
Cash dividends	$ (15,641)				(15,641)
Net income	109,138				109,138
Other comprehensive loss	(2,666)			(2,666)
Balance at Mar. 31, 2019	1,470,228	$ 21,544	1,679,997	(15,706)	(215,607)
Balance, Shares at Mar. 31, 2019		172,353
Balance at Dec. 31, 2019	1,480,158	$ 20,801	1,720,129	(18,854)	(241,918)
Balance, Shares at Dec. 31, 2019		166,410
Net issuance of common stock under stock-based plans	(9,936)	$ 109	(10,045)
Net issuance of common stock under stock-based plans (in shares)		872
Stock-based compensation expense	11,283		11,283
Repurchase of common stock	$ (82,065)	$ (168)			(81,897)
Repurchase of common stock (in shares)	1,300	(1,344)
Cash dividends	$ (16,699)				(16,699)
Net income	176,191				176,191
Other comprehensive loss	(8,259)			(8,259)
Balance at Mar. 29, 2020	$ 1,550,673	$ 20,742	$ 1,721,367	$ (27,113)	$ (164,323)
Balance, Shares at Mar. 29, 2020		165,938

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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 29, 2020	Dec. 31, 2019
Accounts receivable, less allowance for doubtful accounts	$ 1,813	$ 1,736
Common stock, par value	$ 0.125	$ 0.125
Common stock, shares authorized	1,000,000,000	1,000,000,000
Common stock, shares issued	165,938,000	166,410,000
Common stock, shares outstanding	165,938,000	166,410,000

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Inventories (Tables)

3 Months Ended

Mar. 29, 2020

Composition of Inventories, Net

Inventories, net consisted of the following at March 29, 2020 and December 31, 2019:

	March 29,		December 31,
	2020		2019
	(in thousands)
Raw material	$	102,109	$	118,595
Work-in-process		39,848		32,695
Finished goods		41,021		45,401
	$	182,978	$	196,691

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Subsequent Events

3 Months Ended

Mar. 29, 2020

Subsequent Events

U. SUBSEQUENT EVENT

On May 1, 2020, Teradyne entered into a credit agreement (the “Credit Agreement”) with Truist Bank, as administrative agent and collateral agent, and the lenders party thereto. The Credit Agreement provides for a three-year, senior secured revolving credit facility of $400.0 million (the “Credit Facility”). The Credit Agreement further provides that, subject to customary conditions, Teradyne may seek to obtain from existing or new lenders incremental commitments under the Credit Facility in an aggregate principal amount not to exceed $150.0 million.

Proceeds from the Credit Facility may be used for general corporate purposes and working capital. As of May 4, 2020, Teradyne has not borrowed any funds under the Credit Facility.

The interest rates applicable to loans under the Credit Facility are, at Teradyne’s option, equal to either a base rate plus a margin ranging from 0.50% to 1.25% per annum or LIBOR, a minimum of 0.75%, plus a margin ranging from 1.50% to 2.25% per annum, based on the consolidated leverage ratio of Teradyne. In addition, Teradyne will pay a commitment fee on the unused portion of the commitments under the Credit Facility ranging from 0.25% to 0.40% per annum, based on the then applicable consolidated leverage ratio.

Teradyne is not required to repay any loans under the Credit Facility prior to maturity, subject to certain customary exceptions. Teradyne is permitted to prepay all or any portion of the loans under the Credit Facility prior to maturity without premium or penalty, other than customary LIBOR breakage costs.

The Credit Agreement contains customary events of default, representations, warranties and affirmative and negative covenants that, among other things, limit Teradyne’s ability to sell assets, grant liens on assets, incur other secured indebtedness and make certain investments and restricted payments, all subject to exceptions set forth in the Credit Agreement. The Credit Agreement also requires Teradyne to satisfy two financial ratios measured as of the end of each fiscal quarter: a consolidated leverage ratio and an interest coverage ratio.

The Credit Facility is guaranteed by certain of Teradyne’s domestic subsidiaries and collateralized by assets of Teradyne and such subsidiaries, including a pledge of 65% of the capital stock of certain foreign subsidiaries.

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Deferred Revenue and Customer Advances (Tables)

3 Months Ended

Mar. 29, 2020

Deferred Revenue and Customer Advances

Deferred revenue and customer advances consist of the following and are included in short and long-term deferred revenue and customer advances on the balance sheet:

	March 29,		December 31,
	2020		2019
	(in thousands)
Maintenance, service and training	$	68,483	$	63,815
Extended warranty		33,503		30,677
Customer advances, undelivered elements and other		47,620		56,358
Total deferred revenue and customer advances	$	149,606	$	150,850

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Revenue

3 Months Ended

Mar. 29, 2020

Revenue from Contract with Customer [Abstract]

Revenue

D. REVENUE

Disaggregation of Revenue

The following table provides information about disaggregated revenue by timing of revenue recognition, primary geographical market, and major product lines.

	Semiconductor Test						Industrial Automation						Wireless Test		Corporate and Other			Total
	System on a Chip		Memory		System Test		Universal Robots		Mobile Industrial Robots		AutoGuide
	(in thousands)
For the Three Months Ended March 29, 2020 (1)
Timing of Revenue Recognition
Point in Time	$	348,044	$	79,398	$	100,712	$	47,502	$	9,097	$	1,124	$	41,056	$	—		$	626,933
Over Time		52,095		4,952		15,364		2,195		41		346		2,429		—			77,422
Total	$	400,139	$	84,350	$	116,076	$	49,697	$	9,138	$	1,470	$	43,485	$	—		$	704,355
Geographical Market
Asia Pacific	$	362,732	$	76,110	$	80,017	$	10,917	$	1,593	$	—	$	37,805	$	—		$	569,174
Americas		17,386		6,896		28,291		14,743		3,465		1,470		4,688		—			76,939
Europe, Middle East and Africa		20,021		1,344		7,768		24,037		4,080		—		992		—			58,242
Total	$	400,139	$	84,350	$	116,076	$	49,697	$	9,138	$	1,470	$	43,485	$	—		$	704,355
For the Three Months Ended March 31, 2019 (1)
Timing of Revenue Recognition
Point in Time	$	238,755	$	43,775	$	45,237	$	55,379	$	9,106	$	—	$	27,454	$	(151	)	$	419,555
Over Time		54,051		4,272		12,983		1,651		—		—		1,587		—			74,544
Total	$	292,806	$	48,047	$	58,220	$	57,030	$	9,106	$	—	$	29,041	$	(151	)	$	494,099
Geographical Market
Asia Pacific	$	260,326	$	38,851	$	24,285	$	14,618	$	1,727	$	—	$	26,019	$	—		$	365,826
Americas		16,167		8,763		26,809		15,803		3,539		—		2,241		(151	)		73,171
Europe, Middle East and Africa		16,313		433		7,126		26,609		3,840		—		781		—			55,102
Total	$	292,806	$	48,047	$	58,220	$	57,030	$	9,106	$	—	$	29,041	$	(151	)	$	494,099

(1) Includes $1.8 million and $1.7 million in 2020 and 2019, for leases of Teradyne’s systems recognized outside ASC 606 “Revenue from Contracts with Customers.”

Contract Balances

For the three months ended March 29, 2020 and March 31, 2019, Teradyne recognized $39.5 million and $19.5 million, respectively, that was previously included within the deferred revenue and customer advances balances. This revenue primarily relates to undelivered hardware, extended warranties, training, application support, and post contract support. Each of these represents a distinct performance obligation. Teradyne expects to recognize 66% of the remaining performance obligation in the next 12 months, 26% in 1-3 years, and the remainder thereafter.

Accounts Receivable

Teradyne sells certain trade accounts receivables on a non-recourse basis to third-party financial institutions pursuant to factoring agreements. Teradyne accounts for these transactions as sales of receivables and presents cash proceeds as a cash provided by operating activities in the consolidated statements of cash flows. Total trade accounts receivable sold under the factoring agreements were $46.8 million and $41.7 million for the three months ended March 29, 2020 and March 31, 2019, respectively. Factoring fees for the sales of receivables were recorded in interest expense and were not material.

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Prepayments

12 Months Ended

Dec. 31, 2019

Prepayments

H. PREPAYMENTS

Prepayments consist of the following and are included in prepayments and other assets on the balance sheet:

	March 29,		December 31,
	2020		2019
	(in thousands)
Contract manufacturer and supplier prepayments	$	173,082	$	143,392
Prepaid taxes		9,667		8,046
Prepaid maintenance and other services		10,828		8,503
Other prepayments		17,890		16,753
Total prepayments	$	211,467	$	176,694

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Schedule of Estimated Intangible Asset Amortization Expense (Detail) $ in Thousands	Mar. 29, 2020 USD ($)
Finite-Lived Intangible Assets
2020 (remainder)	$ 20,411
2021	20,391
2022	19,498
2023	19,023
2024	18,718
Thereafter	$ 16,280

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Stock-Based Compensation - Additional Information (Detail) - $ / shares shares in Millions	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award
Stock price	$ 72.10	$ 36.75
Stock Options | Measurement Input, Expected Dividend Payment [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Estimated annual dividend amount per share	$ 0.40	$ 72.10
Restricted Stock Units | Employees
Share-based Compensation Arrangement by Share-based Payment Award
Period of stock granted to employees and executive officers vest in equal annual installments	4 years
Percentage of awards vesting on the first anniversary of grant date	100.00%
Restricted Stock Units | Director
Share-based Compensation Arrangement by Share-based Payment Award
Period of stock granted to employees and executive officers vest in equal annual installments	1 year
TSR Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award
Total shareholder return performance measurement period	3 years	3 years
Share-based compensation arrangement by share-based payment award, description	capped at four times the grant date value for grants prior to 2019
Minimum age of retirement to be eligible for PRSUs	60 years
Minimum years of service for retirement to be eligible for PRSUs	10 years
Restricted stock unit awards granted	0.1
Weighted average grant date fair value of restricted stock units granted	$ 89.93	$ 48.47
Stock price	0.36	$ 36.75
TSR Performance-Based Restricted Stock Units | Measurement Input, Expected Dividend Payment [Member]
Share-based Compensation Arrangement by Share-based Payment Award
Estimated annual dividend amount per share	$ 0.40
TSR Performance-Based Restricted Stock Units | Share-based Compensation Award, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award
Percentage of vesting of target shares upon performance achieved	0.00%	0.00%
TSR Performance-Based Restricted Stock Units | Share-based Compensation Award, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award
Percentage of vesting of target shares upon performance achieved	200.00%	200.00%
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award
Percentage of common stock price paid	100.00%
PBIT Performance-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award
Restricted stock unit awards granted	0.1
Weighted average grant date fair value of restricted stock units granted	$ 70.94	$ 35.67
Service-Based Restricted Stock Units | Employees
Share-based Compensation Arrangement by Share-based Payment Award
Restricted stock unit awards granted	0.4	0.6
Weighted average grant date fair value of restricted stock units granted	$ 70.98	$ 35.88
Service-Based Restricted Stock Units | Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award
Restricted stock unit awards granted	0.1
Weighted average grant date fair value of restricted stock units granted	$ 20.67	$ 10.26

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Schedule of Prepayments and Other Assets (Detail) - USD ($) $ in Thousands	Mar. 29, 2020	Dec. 31, 2019
Prepaid And Other Current Assets [Line Items]
Contract manufacturer and supplier prepayments	$ 173,082	$ 143,392
Prepaid taxes	9,667	8,046
Prepaid maintenance and other services	10,828	8,503
Other prepayments	17,890	16,753
Total prepayments	$ 211,467	$ 176,694

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Reclassifications Out of Accumulated Other Comprehensive Income to Statements of Operations (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, tax	$ 145	$ 31
Unrealized (Losses) Gains on Marketable Securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, tax	145	20
Amortization of Prior Service Credit
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, tax	$ 0	$ 11

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Schedule of Changes in Fair Value of Level 3 Contingent Consideration (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance at beginning of period	$ 39,705	$ 70,543
Foreign currency impact	(361)	(610)
Payments	(8,852)	(34,590)
Fair value adjustment	(10,020)	2,970
Balance at end of period	$ 20,472	$ 38,313

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Revenue - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Deferred Revenue And Customer Advances	$ 39.5	$ 19.5
Trade Accounts Receivable	$ 46.8	$ 41.7
Short-term Contract with Customer [Member]
Revenue, Remaining Performance Obligation, Percentage	66.00%
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction Period	0 months
Long-term Contract with Customer [Member]
Revenue, Remaining Performance Obligation, Percentage	26.00%
Long-term Contract with Customer [Member] | Maximum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction Period	0 months
Long-term Contract with Customer [Member] | Minimum [Member]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction Period	0 months

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Inventories - Additional Information (Detail) - USD ($) $ in Millions	Mar. 29, 2020	Dec. 31, 2019
Inventory [Line Items]
Inventory reserves	$ 105.3	$ 103.6

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Segment Information (Tables)

3 Months Ended

Mar. 29, 2020

Segment Information

Segment information for the three months ended March 29, 2020 and March 31, 2019 is as follows:

	Semiconductor Test		System Test		Industrial Automation			Wireless Test		Corporate and Other			Consolidated
	(in thousands)
Three Months Ended March 29, 2020
Revenues	$	484,489	$	116,076	$	60,305		$	43,485	$	—		$	704,355
Income (loss) before taxes (1)(2)		153,816		48,407		(15,335	)		10,220		(39	)		197,069
Total assets (3)		921,108		137,056		643,011			106,400		1,012,813			2,820,388
Three Months Ended March 31, 2019
Revenues	$	340,853	$	58,220	$	66,136		$	29,041	$	(151	)	$	494,099
Income (loss) before taxes (1)(2)		83,049		15,340		(5,295	)		3,628		(2,743	)		93,979
Total assets (3)		770,967		98,916		596,899			73,066		1,076,795			2,616,643

(1) Included in Corporate and Other are: contingent consideration adjustments, severance charges, interest income, interest expense, net foreign exchange gains (losses), intercompany eliminations and acquisition related charges.

(2) Included in income (loss) before taxes are charges and credits related to restructuring and other, and inventory charges.

(3) Total assets are attributable to each segment. Corporate assets consist of cash and cash equivalents, marketable securities and certain other assets.

Schedule of Segment Reporting Information by Segment Charges

Included in each segment are charges and credits in the following line items in the statements of operations:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
	(in thousands)
Semiconductor Test:
Cost of revenues—inventory charge	$	3,026		$	1,174
Industrial Automation:
Restructuring and other—acquisition related expenses and compensation		618			1,261
Corporate and Other:
Restructuring and other—MiR contingent consideration adjustment		(2,878	)		3,003
Restructuring and other—AutoGuide contingent consideration adjustment		(7,142	)		—
Restructuring and other—acquisition related expenses and compensation		741			—

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Goodwill and Acquired Intangible Assets (Tables)

3 Months Ended

Mar. 29, 2020

Changes in Carrying Amount of Goodwill by Segment

The changes in the carrying amount of goodwill by reportable segments for the three months ended March 29, 2020, were as follows:

	Industrial Automation			System Test			Wireless Test			Semiconductor Test			Total
	(in thousands)
Balance at December 31, 2019
Goodwill	$	396,483		$	158,699		$	361,819		$	261,996		$	1,178,997
Accumulated impairment losses		—			(148,183	)		(353,843	)		(260,540	)		(762,566	)
		396,483			10,516			7,976			1,456			416,431
AutoGuide acquisition		(149	)		—			—			—			(149	)
Foreign currency translation adjustment		(6,354	)		—			—			5			(6,349	)
Balance at March 29, 2020
Goodwill		389,980			158,699			361,819			262,001			1,172,499
Accumulated impairment losses		—			(148,183	)		(353,843	)		(260,540	)		(762,566	)
	$	389,980		$	10,516		$	7,976		$	1,461		$	409,933

Schedule of Estimated Intangible Assets Amortization Expense

Estimated intangible asset amortization expense for each of the five succeeding fiscal years is as follows:

	Amortization Expense
Year	(in thousands)
2020 (remainder)		20,411
2021		20,391
2022		19,498
2023		19,023
2024		18,718
Thereafter		16,280

Wireless Test

Schedule of Amortizable Intangible Assets

Amortizable intangible assets consist of the following and are included in intangible assets, net on the balance sheet:

	Gross Carrying Amount		Accumulated Amortization			Foreign Currency Translation Adjustment			Net Carrying Amount
	(in thousands)
Balance, March 29, 2020
Developed technology	$	361,787	$	(286,166	)	$	(6,663	)	$	68,958
Customer relationships		75,669		(60,406	)		(547	)		14,716
Tradenames and trademarks		70,120		(38,067	)		(1,406	)		30,647
Backlog		260		(260	)		—			—
Total intangible assets	$	507,836	$	(384,899	)	$	(8,616	)	$	114,321
Balance, December 31, 2019
Developed technology	$	361,787	$	(279,000	)	$	(5,709	)	$	77,078
Customer relationships		75,669		(59,077	)		(455	)		16,137
Tradenames and trademarks		70,120		(36,671	)		(1,184	)		32,265
Backlog		260		(260	)		—			—
Total intangible assets	$	507,836	$	(375,008	)	$	(7,348	)	$	125,480

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Retirement Plans - Additional Information (Detail) $ in Millions	3 Months Ended
	Mar. 29, 2020 USD ($)
United States Plans
Defined Benefit Plan Disclosure
Contribution to defined benefit pension plans	$ 0.7
U.S. Supplemental Executive Defined Benefit Pension Plan
Defined Benefit Plan Disclosure
Contribution to defined benefit pension plans	$ 0.2

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Quantitative Information Associated With Fair Value Measurement of Level 3 Financial Instrument (Detail) - Monte Carlo Simulation $ in Thousands	3 Months Ended
	Mar. 29, 2020 USD ($)
Mobile Industrial Robots (MiR)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Target achievement, volatility	16.00%
Discount rate	2.20%
Autoguide LLC [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Target achievement, volatility	14.00%
Discount rate	4.40%
Significant Unobservable Inputs (Level 3) | Mobile Industrial Robots (MiR)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration	$ 662
Significant Unobservable Inputs (Level 3) | Autoguide LLC [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Contingent consideration	$ 19,810

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Contractual Maturities of Investments in Debt Securities Held (Detail) $ in Thousands	Mar. 29, 2020 USD ($)
Schedule of Available-for-sale Securities
Due within one year, cost	$ 210,722
Due after 1 year through 5 years, cost	18,933
Due after 5 years through 10 years, cost	12,440
Due after 10 years, cost	38,889
Total, cost	280,984
Due within one year, fair market value	211,001
Due after 1 year through 5 years, fair market value	19,465
Due after 5 years through 10 years, fair market value	13,160
Due after 10 years, fair maket value	42,187
Total, fair market value	$ 285,813

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Income Taxes - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019	Dec. 31, 2019
Income Taxes [Line Items]
Tax savings due to the tax holiday	$ 7.1	$ 2.1
Tax savings due to the tax holiday, per share	$ 0.04	$ 0.01
Accrued interest and penalties	$ 1.6		$ 1.4
Interest and penalties related to income tax, expense (benefit)	0.1	$ 0.3
Uncertain tax positions	21.3		$ 21.2
Net increase in reserves for uncertain tax positions	$ 0.1

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Shareholders' Equity - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019	Jan. 31, 2020	Jan. 31, 2019
Cumulative repurchases, shares	1.3	4.5
Common stock average price	$ 58.81	$ 35.12
Dividends Payable, Amount Per Share			$ 0.10	$ 0.09
Dividend payment	$ 16,686	$ 15,627
Share Repurchase Program [Member]
Cumulative repurchases, value	79,000	$ 156,500
Maximum [Member]
Stock repurchase program, authorized amount	$ 1,000,000

XML

Debt - Additional Information (Detail) $ / shares in Units, $ in Thousands, shares in Millions		3 Months Ended
	Dec. 12, 2016 USD ($) Customer shares	Mar. 29, 2020 USD ($) $ / shares shares	Mar. 31, 2019 USD ($) shares	Dec. 31, 2019 USD ($)	Dec. 31, 2016 $ / shares
Debt Instrument
Repurchase of common stock		$ 79,039	$ 156,468
Repurchase of stock, shares | shares		1.3	4.5
1.25% Convertible Senior Unsecured Notes Due December 15, 2023
Debt Instrument
Aggregate principal amount	$ 460,000	$ 459,987		$ 460,000
Debt instrument, interest rate, stated percentage	1.25%
Debt instrument, net proceeds after issuance costs	$ 450,800
Payment for net cost of convertible note hedges net of warrant proceeds	33,000	$ 33,000
Repurchase of common stock	$ 50,100
Repurchase of stock, shares | shares	2.0
Senior notes maturity date	Dec. 15, 2023
Debt instrument, frequency of periodic payment	payable semiannually in arrears on June 15 and December 15 of each year
Debt instrument, conversion option expiration date	Sep. 15, 2023
Debt instrument conversion price | $ / shares		$ 31.61			$ 31.61
Shares that would be issued upon conversion | shares		14.6
Strike price per share of warrant | $ / shares		$ 39.66
Debt instrument, convertible, carrying amount of equity component		$ 100,800
Debt instrument, effective annual interest rate		5.00%
Financing cost		$ 7,200	$ 4,100
Debt issuance costs, amortization period		7 years
Unamortized discount		$ 61,500
Debt Instrument, convertible, remaining discount amortization period		3 years 8 months 12 days
Value of notes converted		$ 798,300
Debt Instrument, Face Amount	$ 460,000	$ 459,987		$ 460,000
1.25% Convertible Senior Unsecured Notes Due December 15, 2023 | Conversion option one
Debt Instrument
Trading days measurement period | Customer	20
Consecutive trading days measurement period | Customer	30
Percentage of conversion price	130.00%
1.25% Convertible Senior Unsecured Notes Due December 15, 2023 | Conversion option two
Debt Instrument
Aggregate principal amount	$ 1,000
Trading days measurement period | Customer	5
Consecutive trading days measurement period | Customer	5
Percentage of closing sale price of common stock and conversion rate product	98.00%
Debt Instrument, Face Amount	$ 1,000

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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net income	$ 176,191	$ 109,138
Adjustments to reconcile net income from operations to net cash provided by operating activities:
Depreciation	18,489	16,651
Amortization	13,391	12,942
Stock-based compensation	10,460	9,474
Provision for excess and obsolete inventory	4,057	2,397
Deferred taxes	(1,825)	1,206
Contingent consideration adjustment	(10,020)	2,970
Losses (gains) on investments	4,657	(2,828)
Other	503	219
Changes in operating assets and liabilities, net of businesses acquired:
Accounts receivable	(126,779)	(41,706)
Inventories	15,818	(2,917)
Prepayments and other assets	(39,620)	(18,648)
Accounts payable and other liabilities	(35,323)	(53,323)
Deferred revenue and customer advances	(913)	6,455
Retirement plans contributions	(1,262)	(1,210)
Income taxes	15,278	(22,804)
Net cash provided by operating activities	43,102	18,016
Cash flows from investing activities:
Purchases of property, plant and equipment	(36,700)	(25,711)
Purchases of marketable securities	(187,119)	(375,184)
Proceeds from maturities of marketable securities	98,457	141,201
Proceeds from sales of marketable securities	15,005	5,440
Acquisition of businesses, net of cash acquired	149	(6,970)
Proceeds from life insurance		273
Net cash used for investing activities	(110,208)	(260,951)
Cash flows from financing activities:
Issuance of common stock under stock purchase and stock option plans	12,752	14,268
Repurchase of common stock	(79,039)	(156,468)
Dividend payments	(16,686)	(15,627)
Payments related to net settlement of employee stock compensation awards	(22,070)	(14,318)
Payments of contingent consideration	(8,852)	(27,615)
Net cash used for financing activities	(113,895)	(199,760)
Effects of exchange rate changes on cash and cash equivalents	571	(329)
Decrease in cash and cash equivalents	(180,430)	(443,024)
Cash and cash equivalents at beginning of period	773,924	926,752
Cash and cash equivalents at end of period	$ 593,494	$ 483,728

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Net income	$ 176,191	$ 109,138
Other comprehensive income, net of tax:
Foreign currency translation adjustment, net of tax of $0, $0, respectively	(8,779)	(4,659)
Available-for-sale marketable securities:
Unrealized gains on debt securities arising during period, net of tax of $187, $577, respectively	1,037	2,100
Less: Reclassification adjustment for gains included in net income, net of tax of $(145), $(20), respectively	(515)	(70)
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax, Total	522	2,030
Defined benefit pension and post-retirement plans:
Amortization of prior service benefit included in net periodic pension and post-retirement benefit, net of tax of $0, $(11), respectively	(2)	(37)
Other comprehensive loss	(8,259)	(2,666)
Comprehensive income	$ 167,932	$ 106,472

XML

Cover Page - shares	3 Months Ended
	Mar. 29, 2020	Apr. 27, 2020
Cover [Abstract]
Amendment Flag	false
Document Type	10-Q
Document Fiscal Year Focus	2020
Entity Central Index Key	0000097210
Document Fiscal Period Focus	Q1
Current Fiscal Year End Date	--12-31
Document Period End Date	Mar. 29, 2020
Entity Registrant Name	TERADYNE, INC
Entity Filer Category	Large Accelerated Filer
Trading Symbol	TER
Document Quarterly Report	true
Document Transition Report	false
Entity Interactive Data Current	Yes
Entity Current Reporting Status	Yes
Title of 12(b) Security	Common Stock
Security Exchange Name	NASDAQ
Entity File Number	001-06462
Entity Incorporation, State or Country Code	MA
Entity Tax Identification Number	04-2272148
Entity Address, Address Line One	600 Riverpark Drive
Entity Address, City or Town	North Reading
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	01864
City Area Code	978
Local Phone Number	370-2700
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		165,768,292

XML

Net Income Per Common Share

3 Months Ended

Mar. 29, 2020

Net Income per Common Share

N. NET INCOME PER COMMON SHARE

The following table sets forth the computation of basic and diluted net income per common share:

	For the Three Months Ended
	March 29,		March 31,
	2020		2019
	(in thousands, except per share amounts)
Net income for basic and diluted net income per share	$	176,191	$	109,138
Weighted average common shares-basic		166,589		173,532
Effect of dilutive potential common shares:
Incremental shares from assumed conversion of convertible notes (1)		7,333		2,186
Convertible note hedge warrant shares (2)		5,492		—
Restricted stock units		1,163		1,021
Stock options		134		222
Employee stock purchase plan		25		11
Dilutive potential common shares		14,147		3,440
Weighted average common shares-diluted		180,736		176,972
Net income per common share-basic	$	1.06	$	0.63
Net income per common share-diluted	$	0.97	$	0.62

(1) Incremental shares from assumed conversion of the convertible notes was calculated using the difference between the average Teradyne stock price for the period and the conversion price of $31.61, multiplied by 14.6 million shares. The result of this calculation, representing the total intrinsic value of the convertible debt, was divided by the average Teradyne stock price for the period.

(2) Convertible notes hedge warrant shares were calculated using the difference between the average Teradyne stock price for the period and the warrant price of $39.66, multiplied by 14.6 million shares. The result of this calculation, representing the total intrinsic value of the warrant, was divided by the average Teradyne stock price for the period.

The computation of diluted net income per common share for the three months ended March 29, 2020 excludes the effect of the potential vesting of 0.3 million of restricted stock units because the effect would have been anti-dilutive.

The computation of diluted net income per common share for the three months ended March 31, 2019 excludes the effect of the potential vesting of 0.6 million shares of restricted stock units because the effect would have been anti-dilutive.

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Income Taxes

3 Months Ended

Mar. 29, 2020

Income Taxes

R. INCOME TAXES

A reconciliation of the United States federal statutory corporate tax rate to Teradyne’s effective tax rate was as follows:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
US statutory federal tax rate		21.0	%		21.0	%
Foreign taxes		(5.7	)		(3.1	)
Tax credits		(1.9	)		(3.0	)
Discrete benefit related to equity compensation		(4.1	)		(4.1	)
Discrete benefit related to release of reserves for uncertain tax positions		—			(27.6	)
Other, net		1.3			0.7
Effective tax rate		10.6	%		(16.1	)%

On a quarterly basis, Teradyne evaluates the realizability of the deferred tax assets by jurisdiction and assesses the need for a valuation allowance. As of March 29, 2020, Teradyne believes that it will ultimately realize the deferred tax assets recorded on the condensed consolidated balance sheet. However, should Teradyne believe that it is more-likely-than-not that the deferred tax assets would not be realized, the tax provision would increase in the period in which Teradyne determined that the realizability was not likely. Teradyne considers the probability of future taxable income and historical profitability, among other factors, in assessing the realizability of the deferred tax assets.

As of March 29, 2020 and December 31, 2019, Teradyne had $21.3 million and $21.2 million, respectively, of reserves for uncertain tax positions. The $0.1 million net increase in reserves for uncertain tax positions is associated with U.S. research and development tax credits generated in the current year.

As of March 29, 2020, Teradyne does not anticipate a material change in the balance of unrecognized tax benefits during the next twelve months.

Teradyne recognizes interest and penalties related to income tax matters in income tax expense. As of March 29, 2020 and December 31, 2019, $1.6 million and $1.4 million, respectively, of interest and penalties were accrued for uncertain tax positions. For the three months ended March 29, 2020 and March 31, 2019, expense of $0.1 million and $0.3 million, respectively, was recorded for interest and penalties related to income tax items.

Teradyne qualifies for a tax holiday in Singapore by fulfilling the requirements of an agreement with the Singapore Economic Development Board under which certain headcount and spending requirements must be met. The tax savings due to the tax holiday for the three months ended March 29, 2020 was $7.1 million, or $0.04 per diluted share. The tax savings due to the tax holiday for the three months ended March 31, 2019 was $2.1 million, or $0.01 per diluted share. The tax holiday is scheduled to expire on December 31, 2020.

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Accounting Policies

3 Months Ended

Mar. 29, 2020

Accounting Policies

B. ACCOUNTING POLICIES

Basis of Presentation

The consolidated interim financial statements include the accounts of Teradyne and its wholly-owned subsidiaries. All significant intercompany balances and transactions have been eliminated. These interim financial statements are unaudited and reflect all normal recurring adjustments that are, in the opinion of management, necessary for the fair statement of such interim financial statements. Certain prior year amounts were reclassified to conform to the current year presentation. The December 31, 2019 condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America.

The accompanying financial information should be read in conjunction with the consolidated financial statements and notes thereto contained in Teradyne’s Annual Report on Form 10-K, filed with the U.S. Securities and Exchange Commission (“SEC”) on March 2, 2020, for the year ended December 31, 2019.

Preparation of Financial Statements and Use of Estimates

The preparation of consolidated financial statements requires management to make estimates and judgments that affect the amounts reported in the financial statements. Due to the COVID-19 pandemic, there has been uncertainty and disruption in the global economy and our markets. Teradyne is not aware of any specific event or circumstance that would require an update to its estimates or judgments or a revision of the carrying value of its assets or liabilities as of May 4, 2020, 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 significantly from these estimates under different assumptions or conditions. 

Goodwill

On January 26, 2017, the Financial Accounting Standards Board (“FASB”) issued ASU 2017-04, “Intangibles—Goodwill and Other (Topic 350): Simplifying the Accounting for Goodwill Impairment.” The new guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. Teradyne adopted this standard on January 1, 2020, on a prospective basis. The adoption of ASU 2017-04 did not have a material impact on the consolidated statement of operations, cash flows, or earnings per share. Teradyne assesses goodwill for impairment at least annually in the fourth quarter, as of December 31, on a reporting unit basis, or more frequently, when events and circumstances occur indicating that the recorded goodwill may be impaired. Under ASU 2017-04, goodwill impairment will be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill. All other goodwill impairment guidance will remain largely unchanged. Entities will continue to have the option to perform a qualitative assessment to determine if a quantitative impairment test is necessary. The same one-step impairment test will be applied to goodwill at all reporting units, even those with zero or negative carrying amounts. Entities will be required to disclose the amount of goodwill at reporting units with zero or negative carrying amounts.

Credit Losses

In June 2016, the FASB issued ASU 2016-13, “Financial Instruments-Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” This standard introduced the expected credit losses methodology for the measurement of credit losses on financial assets that are not measured at fair value through net income and replaces the “incurred loss” model with an “expected credit loss” model that requires consideration of a broader range of information to estimate expected credit losses over the lifetime of the asset. Teradyne adopted this standard on January 1, 2020 on a modified retrospective basis. The adoption of ASU 2016-13 did not have a material impact on the consolidated statement of operations, balance sheets, cash flows, or earnings per share.

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Financial Instruments

3 Months Ended

Mar. 29, 2020

Financial Instruments

F. FINANCIAL INSTRUMENTS

Cash Equivalents

Teradyne considers all highly liquid investments with maturities of three months or less at the date of acquisition to be cash equivalents.

Marketable Securities

Teradyne’s available-for-sale debt securities are classified as Level 2 and equity and debt mutual funds are classified as Level 1. Contingent consideration is classified as Level 3. The vast majority of Level 2 securities are fixed income securities priced by third party pricing vendors. These pricing vendors utilize the most recent observable market information in pricing these securities or, if specific prices are not available, use other observable inputs like market transactions involving identical or comparable securities.

During the three months ended March 29, 2020 and March 31, 2019, there were no transfers in or out of Level 1, Level 2, or Level 3 financial instruments.

Realized gains recorded in the three months ended March 29, 2020 and March 31, 2019 were $1.4 million and $0.1 million, respectively. Realized losses recorded in the three months ended March 29, 2020 and March 31, 2019 were $0.1 million. Realized gains and losses are included in other (income) expense, net.

Unrealized losses on equity securities recorded in the three months ended March 29, 2020 were $6.0 million. Unrealized gains on equity securities recorded in the three months ended March 31, 2019 were $2.8 million. Unrealized gains and losses on equity securities are included in other (income) expense, net. Unrealized gains and losses on available-for-sale debt securities are included in accumulated other comprehensive income (loss).

The cost of securities sold is based on the specific identification method.

The following table sets forth by fair value hierarchy Teradyne’s financial assets and liabilities that were measured at fair value on a recurring basis as of March 29, 2020 and December 31, 2019.

	March 29, 2020
	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in thousands)
Assets
Cash	$	270,460	$	—	$	—	$	270,460
Cash equivalents		244,176		78,858		—		323,034
Available-for-sale securities:
Commercial paper		—		101,947		—		101,947
U.S. Treasury securities		—		85,632		—		85,632
Corporate debt securities		—		67,467		—		67,467
Certificates of deposit and time deposits		—		25,776		—		25,776
Debt mutual funds		5,237		—		—		5,237
U.S. government agency securities		—		4,402		—		4,402
Non-U.S. government securities		—		589		—		589
Equity securities:
Mutual funds		20,464		—		—		20,464
	$	540,337	$	364,671	$	—	$	905,008
Derivative assets		—		344		—		344
Total	$	540,337	$	365,015	$	—	$	905,352
Liabilities
Contingent consideration	$	—	$	—	$	20,472	$	20,472
Derivative liabilities		—		254		—		254
Total	$	—	$	254	$	20,472	$	20,726
Reported as follows:
	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	514,636	$	78,858	$	—	$	593,494
Marketable securities		—		211,001		—		211,001
Long-term marketable securities		25,701		74,812		—		100,513
Prepayments and other current assets		—		344		—		344
Total	$	540,337	$	365,015	$	—	$	905,352
Liabilities
Other current liabilities	$	—	$	254	$	—	$	254
Contingent consideration		—		—		662		662
Long-term contingent consideration		—		—		19,810		19,810
Total	$	—	$	254	$	20,472	$	20,726

	December 31, 2019
	Quoted Prices in Active Markets for Identical Instruments (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total
	(in thousands)
Assets
Cash	$	311,975	$	—	$	—		311,975
Cash equivalents		410,285		51,664		—		461,949
Available-for-sale securities:
Corporate debt securities		—		97,307		—		97,307
Commercial paper		—		54,149		—		54,149
U.S. Treasury securities		—		42,382		—		42,382
U.S. government agency securities		—		9,952		—		9,952
Debt mutual funds		6,888		—		—		6,888
Certificates of deposit and time deposits		—		4,751		—		4,751
Non-U.S. government securities		—		592		—		592
Equity securities:
Equity mutual funds		25,772		—		—		25,772
	$	754,920	$	260,797	$	—	$	1,015,717
Derivative assets		—		528		—		528
Total	$	754,920	$	261,325	$	—	$	1,016,245
Liabilities
Contingent consideration	$	—	$	—	$	39,705	$	39,705
Derivative liabilities		—		203		—		203
Total	$	—	$	203	$	39,705	$	39,908
Reported as follows:
	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	722,260	$	51,664	$	—	$	773,924
Marketable securities		—		137,303		—		137,303
Long-term marketable securities		32,660		71,830		—		104,490
Prepayments and other current assets		—		528		—		528
Total	$	754,920	$	261,325	$	—	$	1,016,245
Liabilities
Other accrued liabilities	$	—	$	203	$	—	$	203
Contingent consideration		—		—		9,106		9,106
Long-term contingent consideration		—		—		30,599		30,599
Total	$	—	$	203	$	39,705	$	39,908

Changes in the fair value of Level 3 contingent consideration for the three months ended March 29, 2020 and March 31, 2019 were as follows:

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
	(in thousands)
Balance at beginning of period	$	39,705		$	70,543
Foreign currency impact		(361	)		(610	)
Payments (a)(b)		(8,852	)		(34,590	)
Fair value adjustment (c)(d)		(10,020	)		2,970
Balance at end of period	$	20,472		$	38,313

(a) In the three months ended March 29, 2020, Teradyne paid $8.9 million of contingent consideration for the earn-out in connection with the acquisition of MiR.

(b) In the three months ended March 31, 2019, Teradyne paid $30.8 million and $3.8 million of contingent consideration for the earn-outs in connection with the acquisitions of MiR and Universal Robots A/S (“Universal Robots”), respectively.

(c) In the three months ended March 29, 2020, the fair value of contingent consideration for the earn-outs in connection with the acquisitions of MiR and AutoGuide decreased by $2.9 million and $7.1 million, respectively, due to lower forecasted results.

(d) In the three months ended March 31, 2019, the fair value of contingent consideration for the earn-out in connection with the acquisition of MiR increased by $3.0 million.

The following table provides quantitative information associated with the fair value measurement of Teradyne’s Level 3 financial instruments:

Liability	March 29,  2020 Fair Value		Valuation Technique		Unobservable Inputs		Weighted Average
	(in thousands)
Contingent consideration (AutoGuide)	$	19,810		Monte Carlo  Simulation		Revenue volatility		14.0	%
						Discount Rate		4.4	%
Contingent consideration (MiR)	$	662		Monte Carlo Simulation		Revenue volatility		16.0	%
						Discount Rate		2.2	%

As of March 29, 2020, the significant unobservable inputs used in the Monte Carlo simulation to fair value the AutoGuide and MiR contingent consideration include forecasted revenues, revenue volatility, earnings before interest and taxes, and discount rate. Increases or decreases in the inputs would result in a higher or lower fair value measurement.

As of March 29, 2020, the maximum amount of contingent consideration that could be paid in connection with the acquisition of AutoGuide is $106.9 million. The earn-out periods end on December 31, 2020, December 31, 2021 and December 31, 2022.

As of March 29, 2020, the maximum amount of contingent consideration that could be paid in connection with the acquisition of MiR is $61.4 million. The remaining earn-out period ends on December 31, 2020.

The carrying amounts and fair values of Teradyne’s financial instruments at March 29, 2020 and December 31, 2019 were as follows:

	March 29, 2020				December 31, 2019
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(in thousands)
Assets
Cash and cash equivalents	$	593,494	$	593,494	$	773,924	$	773,924
Marketable securities		311,514		311,514		241,793		241,793
Derivative assets		344		344		528		528
Liabilities
Contingent consideration		20,472		20,472		39,705		39,705
Derivative liabilities		254		254		203		203
Convertible debt (1)		398,466		829,438		394,687		1,010,275

(1) The carrying value represents the bifurcated debt component only, while the fair value is based on quoted market prices for the convertible note, which includes the equity conversion features.

The fair values of accounts receivable, net and accounts payable approximate the carrying value due to the short-term nature of these instruments.

The following table summarizes the composition of available-for-sale marketable securities at March 29, 2020:

	March 29, 2020
	Available-for-Sale
	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Commercial paper	$	101,915	$	33	$	(1	)	$	101,947	$	1,296
U.S. Treasury securities		82,680		2,958		(6	)		85,632		96
Corporate debt securities		65,696		2,951		(1,180	)		67,467		40,891
Certificates of deposit and time deposits		25,769		7		—			25,776		—
Debt mutual funds		5,089		148		—			5,237		—
U.S. government agency securities		4,335		67		—			4,402		—
Non-U.S. government securities		589		—		—			589		—
	$	286,073	$	6,164	$	(1,187	)	$	291,050	$	42,283

Reported as follows:

	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Marketable securities	$	210,722	$	430	$	(151	)	$	211,001	$	32,037
Long-term marketable securities		75,351		5,734		(1,036	)		80,049		10,246
	$	286,073	$	6,164	$	(1,187	)	$	291,050	$	42,283

Reported as follows:

	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Marketable securities	$	137,144	$	160	$	(1	)	$	137,303	$	2,922
Long-term marketable securities		74,452		4,527		(261	)		78,718		21,077
	$	211,596	$	4,687	$	(262	)	$	216,021	$	23,999

As of March 29, 2020 and December 31, 2019, the fair market value of investments with unrealized losses less than one year totaled $42.3 million and $23.6 million, respectively.

Teradyne reviews its investments to identify and evaluate investments that have an indication of possible impairment. Based on this review, Teradyne determined that the unrealized losses related to these investments at March 29, 2020 and December 31, 2019 were not other than temporary.

The contractual maturities of investments in available-for-sale securities held at March 29, 2020 were as follows:

	March 29, 2020
	Cost		Fair Market Value
	(in thousands)
Due within one year	$	210,722	$	211,001
Due after 1 year through 5 years		18,933		19,465
Due after 5 years through 10 years		12,440		13,160
Due after 10 years		38,889		42,187
Total	$	280,984	$	285,813

Contractual maturities of investments in available-for-sale securities held at March 29, 2020 exclude $5.2 million of debt mutual funds as they do not have a contractual maturity date.

Derivatives

Teradyne conducts business in a number of foreign countries, with certain transactions denominated in local currencies. The purpose of Teradyne’s foreign currency management is to minimize the effect of exchange rate fluctuations on certain foreign currency denominated monetary assets and liabilities. Teradyne does not use derivative financial instruments for trading or speculative purposes.

To minimize the effect of exchange rate fluctuations associated with the remeasurement of monetary assets and liabilities denominated in foreign currencies, Teradyne enters into foreign currency forward contracts. The change in fair value of these derivatives is recorded directly in earnings, and is used to offset the change in value of monetary assets and liabilities denominated in foreign currencies.

The notional amount of foreign currency forward contracts at March 29, 2020 and December 31, 2019 was $132.1 million and $144.9 million, respectively.

Gains and losses on foreign currency forward contracts and foreign currency remeasurement gains and losses on monetary assets and liabilities are included in other (income) expense, net.

The following table summarizes the fair value of derivative instruments as of March 29, 2020 and December 31, 2019:

	Balance Sheet Location		March 29, 2020			December 31, 2019
			(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange contracts		Prepayments	$	344		$	528
Foreign exchange contracts		Other current liabilities		(254	)		(203	)
Total derivatives			$	90		$	325

The following table summarizes the effect of derivative instruments recognized in the statement of operations for the three months ended March 29, 2020 and March 31, 2019:

	Location of Losses	For the Three Months  Ended
	Recognized in	March 29,		March 31,
	Statement of Operations	2020		2019
		(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange contracts	Other (income) expense, net	$	4,011	$	3,934

(1) The table does not reflect the corresponding gains and losses from the remeasurement of the monetary assets and liabilities denominated in foreign currencies.

(2) For the three months ended March 29, 2020 and March 31, 2019, net gains from the remeasurement of monetary assets and liabilities denominated in foreign currencies were $2.0 million and $3.2 million, respectively.

See Note G: “Debt” regarding derivatives related to the convertible senior notes.

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Product Warranty

3 Months Ended

Mar. 29, 2020

Product Warranty

J. PRODUCT WARRANTY

Teradyne generally provides a one-year warranty on its products, commencing upon installation, acceptance or shipment. A provision is recorded upon revenue recognition to cost of revenues for estimated warranty expense based on historical experience. Related costs are charged to the warranty accrual as incurred. The balance below is included in other accrued liabilities.

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
	(in thousands)
Balance at beginning of period	$	8,996		$	7,909
Acquisition		—			14
Accruals for warranties issued during the period		5,066			3,066
Accruals related to pre-existing warranties		1,056			1,330
Settlements made during the period		(4,147	)		(4,567	)
Balance at end of period	$	10,971		$	7,752

When Teradyne receives revenue for extended warranties, beyond one year, it is deferred and recognized on a straight-line basis over the contract period. Related costs are expensed as incurred. The balance below is included in short and long-term deferred revenue and customer advances.

	For the Three Months Ended
	March 29,			March 31,
	2020			2019
	(in thousands)
Balance at beginning of period	$	30,677		$	27,422
Deferral of new extended warranty revenue		7,600			5,820
Recognition of extended warranty deferred revenue		(4,774	)		(6,000	)
Balance at end of period	$	33,503		$	27,242

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Debt (Tables)

3 Months Ended

Mar. 29, 2020

Components of Convertible Senior Notes

The below tables represent the key components of Teradyne’s convertible senior notes:

	March 29, 2020		December 31, 2019
	(in thousands)
Debt Principal	$	459,987	$	460,000
Unamortized discount		61,521		65,313
Net Carrying amount of convertible debt	$	398,466	$	394,687

	For the Three Months  Ended
	March 29, 2020		March 31, 2019
	(in thousands)
Contractual interest expense on the coupon	$	1,438	$	1,438
Amortization of the discount component and debt issue fees recognized as interest expense		3,792		3,608
Total interest expense on the convertible debt	$	5,230	$	5,046

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Acquisitions (Tables)

3 Months Ended

Mar. 29, 2020

Final Allocation of Purchase Price

The following table represents the final allocation of the purchase price:

	Purchase Price  Allocation
	(in thousands)
Goodwill	$	41,223
Intangible assets		37,660
Tangible assets acquired and liabilities assumed:
Other current assets		3,661
Non-current assets		1,227
Accounts payable and current liabilities		(1,223	)
Long-term other liabilities		(949	)
Total purchase price	$	81,599

Components of Intangible Assets and Their Estimated Useful Lives at Acquisition Date

Components of these intangible assets and their estimated useful lives at the acquisition date are as follows:

	Fair Value		Estimated Useful Life
	(in thousands)		(in years)
Developed technology	$	24,590		6.0
Customer relationships		7,360		6.0
Trademarks and tradenames		5,450		7.0
Backlog		260		0.3
Total intangible assets	$	37,660		6.1

Pro Forma Results Under Acquisitions

The unaudited pro forma results are not necessarily indicative of what actually would have occurred had the acquisition been in effect for the periods presented:

	For the Three Months Ended
	March 31, 2019
	(in thousands, except per share amounts)
Revenues	$	495,599
Net income	$	107,289
Net income per common share:
Basic	$	0.62
Diluted	$	0.61

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Disaggregated Revenue by Primary Geographical Market, Major Product Line and Timing of Revenue Recognition (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Accounting Policies [Abstract]
Revenue on leases	$ 1.8	$ 1.7

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Schedule of Fair Value of Financial Assets and Liabilities Measured on Recurring Basis (Detail) - USD ($) $ in Thousands	Mar. 29, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	$ 291,050	$ 216,021
U.S. Treasury Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	85,632	42,382
Commercial Paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	101,947	54,149
Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	67,467	97,307
Certificates of Deposit and Time Deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	25,776	4,751
U.S. Government Agency Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	4,402	9,952
Debt Mutual Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	5,237	6,888
Non-U.S. Government Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	589	592
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Total	905,008	1,015,717
Derivative assets	344	528
Total	905,352	1,016,245
Contingent consideration	20,472	39,705
Derivative liabilities	254	203
Total	20,726	39,908
Fair Value, Measurements, Recurring | Cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	270,460	311,975
Fair Value, Measurements, Recurring | Cash Equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	323,034	461,949
Fair Value, Measurements, Recurring | U.S. Treasury Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	85,632	42,382
Fair Value, Measurements, Recurring | Commercial Paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	101,947	54,149
Fair Value, Measurements, Recurring | Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	67,467	97,307
Fair Value, Measurements, Recurring | Certificates of Deposit and Time Deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	25,776	4,751
Fair Value, Measurements, Recurring | U.S. Government Agency Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	4,402	9,952
Fair Value, Measurements, Recurring | Debt Mutual Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	5,237	6,888
Fair Value, Measurements, Recurring | Non-U.S. Government Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	589	592
Fair Value, Measurements, Recurring | Equity Mutual Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale equity securities	20,464	25,772
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Total	540,337	754,920
Total	540,337	754,920
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	270,460	311,975
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Cash Equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	244,176	410,285
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Debt Mutual Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	5,237	6,888
Quoted Prices in Active Markets for Identical Instruments (Level 1) | Fair Value, Measurements, Recurring | Equity Mutual Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale equity securities	20,464	25,772
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Total	364,671	260,797
Derivative assets	344	528
Total	365,015	261,325
Derivative liabilities	254	203
Total	254	203
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Cash Equivalents
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash and cash equivalents	78,858	51,664
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | U.S. Treasury Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	85,632	42,382
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Commercial Paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	101,947	54,149
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Corporate Debt Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	67,467	97,307
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Certificates of Deposit and Time Deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	25,776	4,751
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | U.S. Government Agency Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	4,402	9,952
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Non-U.S. Government Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Available for sale securities	589	592
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Contingent consideration	20,472	39,705
Total	$ 20,472	$ 39,705

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Schedule of Estimated Fair Value of Stock Options Grant Using Black Scholes Option Pricing Model (Detail) - Stock Options	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award
Expected life (years)	5 years	5 years
Risk-free interest rate	1.60%	2.60%
Volatility-historical	31.60%	30.10%
Dividend yield	0.60%	1.00%

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Computation of Basic and Diluted Net Income Per Common Share (Parenthetical) (Detail) shares in Millions	3 Months Ended
	Mar. 29, 2020 $ / shares shares
Convertible Notes
Net Income Loss Per Common Share
Initial debt conversion price | $ / shares	$ 31.61
Shares that would be issued upon conversion | shares	14.6
Convertible Notes Hedge Warrant
Net Income Loss Per Common Share
Initial debt conversion price | $ / shares	$ 39.66
Shares that would be issued upon conversion | shares	14.6

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Changes in Carrying Amount of Goodwill by Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Mar. 29, 2020
Goodwill [Line Items]
Foreign currency translation adjustment	$ (6,349)
Goodwill	1,178,997	$ 1,172,499
Accumulated impairment losses	(762,566)	(762,566)
Goodwill	416,431	409,933
Autoguide LLC
Goodwill [Line Items]
Goodwill	(149)
Industrial Automation
Goodwill [Line Items]
Foreign currency translation adjustment	(6,354)
Goodwill	396,483	389,980
Goodwill	396,483	389,980
Wireless Test
Goodwill [Line Items]
Goodwill	361,819	361,819
Accumulated impairment losses	(353,843)	(353,843)
Goodwill	7,976	7,976
Semiconductor Test
Goodwill [Line Items]
Foreign currency translation adjustment	5
Goodwill	261,996	262,001
Accumulated impairment losses	(260,540)	(260,540)
Goodwill	1,456	1,461
System Test
Goodwill [Line Items]
Goodwill	158,699	158,699
Accumulated impairment losses	(148,183)	(148,183)
Goodwill	$ 10,516	$ 10,516

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Warranty Accrual Included in Other Accrued Liabilities (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Product Warranty Liability [Line Items]
Balance at beginning of period	$ 8,996	$ 7,909
Acquisition		14
Accruals for warranties issued during the period	5,066	3,066
Accruals related to pre-existing warranties	1,056	1,330
Settlements made during the period	(4,147)	(4,567)
Balance at end of period	$ 10,971	$ 7,752

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Components of Convertible Senior Notes (Detail) - USD ($) $ in Thousands	Mar. 29, 2020	Dec. 31, 2019	Dec. 12, 2016
Debt Instrument
Net carrying amount of convertible debt	$ 398,466	$ 394,687
1.25% Convertible Senior Unsecured Notes Due December 15, 2023
Debt Instrument
Debt principal	459,987	460,000	$ 460,000
Unamortized discount	61,521	65,313
Net carrying amount of convertible debt	$ 398,466	$ 394,687

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Changes in Accumulated Other Comprehensive (Loss) Income (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive income (loss), tax	$ (145)	$ (31)
Foreign currency translation adjustments, tax	0	0	$ 0	$ 0
Unrealized (losses) gains on marketable securities, tax	988	36	946	(521)
Retirement plans prior service benefit, tax	(1,124)	(1,092)	$ (1,124)	$ (1,081)
Foreign Currency Translation Reclassification Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications, tax	0	0
Amounts reclassified from accumulated other comprehensive income (loss), tax	0	0
Other comprehensive income (loss), tax	0	0
Unrealized (Losses) Gains on Marketable Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications, tax	187	577
Amounts reclassified from accumulated other comprehensive income (loss), tax	(145)	(20)
Other comprehensive income (loss), tax	42	557
Amortization of Prior Service Credit
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss) before reclassifications, tax	0	0
Amounts reclassified from accumulated other comprehensive income (loss), tax	0	(11)
Other comprehensive income (loss), tax	$ 0	$ (11)

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Deferred Revenue and Customer Advances

3 Months Ended

Mar. 29, 2020

Deferred Revenue and Customer Advances

I. DEFERRED REVENUE AND CUSTOMER ADVANCES

Deferred revenue and customer advances consist of the following and are included in short and long-term deferred revenue and customer advances on the balance sheet:

	March 29,		December 31,
	2020		2019
	(in thousands)
Maintenance, service and training	$	68,483	$	63,815
Extended warranty		33,503		30,677
Customer advances, undelivered elements and other		47,620		56,358
Total deferred revenue and customer advances	$	149,606	$	150,850

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The Company

3 Months Ended

Mar. 29, 2020

The Company

A. THE COMPANY

Teradyne, Inc. (“Teradyne”) is a leading global supplier of automation equipment for test and industrial applications. Teradyne designs, develops, manufactures and sells automatic test systems used to test semiconductors, wireless products, data storage and complex electronics systems in the consumer electronics, wireless, automotive, industrial, computing, communications, and aerospace and defense industries. Teradyne’s industrial automation products include collaborative robotic arms, autonomous mobile robots, and advanced robotic control software used by global manufacturing and light industrial customers to improve quality, increase manufacturing and material handling efficiency and decrease manufacturing costs. Teradyne’s automatic test equipment and industrial automation products and services include:

• semiconductor test (“Semiconductor Test”) systems;

• defense/aerospace (“Defense/Aerospace”) test instrumentation and systems, storage test (“Storage Test”) systems, and circuit-board test and inspection (“Production Board Test”) systems (collectively these products represent “System Test”);

• industrial automation (“Industrial Automation”) products; and

• wireless test (“Wireless Test”) systems.

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Inventories

3 Months Ended

Mar. 29, 2020

Inventories

E. INVENTORIES

Inventories, net consisted of the following at March 29, 2020 and December 31, 2019:

	March 29,		December 31,
	2020		2019
	(in thousands)
Raw material	$	102,109	$	118,595
Work-in-process		39,848		32,695
Finished goods		41,021		45,401
	$	182,978	$	196,691

Inventory reserves at March 29, 2020 and December 31, 2019 were $105.3 million and $103.6 million, respectively.

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Prepayments (Tables)

3 Months Ended

Mar. 29, 2020

Schedule of Prepayments and other assets

Prepayments consist of the following and are included in prepayments and other assets on the balance sheet:

	March 29,		December 31,
	2020		2019
	(in thousands)
Contract manufacturer and supplier prepayments	$	173,082	$	143,392
Prepaid taxes		9,667		8,046
Prepaid maintenance and other services		10,828		8,503
Other prepayments		17,890		16,753
Total prepayments	$	211,467	$	176,694

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Revenue (Tables)

3 Months Ended

Mar. 29, 2020

Revenue from Contract with Customer [Abstract]

Disaggregated Revenue by Primary Geographical Market, Major Product Line and Timing of Revenue Recognition

D. REVENUE

Disaggregation of Revenue

The following table provides information about disaggregated revenue by timing of revenue recognition, primary geographical market, and major product lines.

	Semiconductor Test						Industrial Automation						Wireless Test		Corporate and Other			Total
	System on a Chip		Memory		System Test		Universal Robots		Mobile Industrial Robots		AutoGuide
	(in thousands)
For the Three Months Ended March 29, 2020 (1)
Timing of Revenue Recognition
Point in Time	$	348,044	$	79,398	$	100,712	$	47,502	$	9,097	$	1,124	$	41,056	$	—		$	626,933
Over Time		52,095		4,952		15,364		2,195		41		346		2,429		—			77,422
Total	$	400,139	$	84,350	$	116,076	$	49,697	$	9,138	$	1,470	$	43,485	$	—		$	704,355
Geographical Market
Asia Pacific	$	362,732	$	76,110	$	80,017	$	10,917	$	1,593	$	—	$	37,805	$	—		$	569,174
Americas		17,386		6,896		28,291		14,743		3,465		1,470		4,688		—			76,939
Europe, Middle East and Africa		20,021		1,344		7,768		24,037		4,080		—		992		—			58,242
Total	$	400,139	$	84,350	$	116,076	$	49,697	$	9,138	$	1,470	$	43,485	$	—		$	704,355
For the Three Months Ended March 31, 2019 (1)
Timing of Revenue Recognition
Point in Time	$	238,755	$	43,775	$	45,237	$	55,379	$	9,106	$	—	$	27,454	$	(151	)	$	419,555
Over Time		54,051		4,272		12,983		1,651		—		—		1,587		—			74,544
Total	$	292,806	$	48,047	$	58,220	$	57,030	$	9,106	$	—	$	29,041	$	(151	)	$	494,099
Geographical Market
Asia Pacific	$	260,326	$	38,851	$	24,285	$	14,618	$	1,727	$	—	$	26,019	$	—		$	365,826
Americas		16,167		8,763		26,809		15,803		3,539		—		2,241		(151	)		73,171
Europe, Middle East and Africa		16,313		433		7,126		26,609		3,840		—		781		—			55,102
Total	$	292,806	$	48,047	$	58,220	$	57,030	$	9,106	$	—	$	29,041	$	(151	)	$	494,099

(1) Includes $1.8 million and $1.7 million in 2020 and 2019, for leases of Teradyne’s systems recognized outside ASC 606 “Revenue from Contracts with Customers.”

XML

Disaggregated Revenue by Primary Geographical Market, Major Product Line and Timing of Revenue Recognition (Detail) - USD ($) $ in Thousands		3 Months Ended
		Mar. 29, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Total	[1]	$ 704,355	$ 494,099
Semiconductor Test
Disaggregation of Revenue [Line Items]
Total		484,489	340,853
System Test
Disaggregation of Revenue [Line Items]
Total	[1]	116,076	58,220
Industrial Automation
Disaggregation of Revenue [Line Items]
Total		60,305	66,136
Wireless Test
Disaggregation of Revenue [Line Items]
Total	[1]	43,485	29,041
Corporate and Other
Disaggregation of Revenue [Line Items]
Total	[1]		(151)
Point in Time
Disaggregation of Revenue [Line Items]
Total	[1]	626,933	419,555
Point in Time | System Test
Disaggregation of Revenue [Line Items]
Total	[1]	100,712	45,237
Point in Time | Wireless Test
Disaggregation of Revenue [Line Items]
Total	[1]	41,056	27,454
Point in Time | Corporate and Other
Disaggregation of Revenue [Line Items]
Total	[1]		(151)
Over Time
Disaggregation of Revenue [Line Items]
Total	[1]	77,422	74,544
Over Time | System Test
Disaggregation of Revenue [Line Items]
Total	[1]	15,364	12,983
Over Time | Wireless Test
Disaggregation of Revenue [Line Items]
Total	[1]	2,429	1,587
Over Time | Corporate and Other
Disaggregation of Revenue [Line Items]
Total	[1]
Americas
Disaggregation of Revenue [Line Items]
Total	[1]	76,939	73,171
Americas | System Test
Disaggregation of Revenue [Line Items]
Total	[1]	28,291	26,809
Americas | Wireless Test
Disaggregation of Revenue [Line Items]
Total	[1]	4,688	2,241
Americas | Corporate and Other
Disaggregation of Revenue [Line Items]
Total	[1]		(151)
Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Total	[1]	58,242	55,102
Europe, Middle East and Africa | System Test
Disaggregation of Revenue [Line Items]
Total	[1]	7,768	7,126
Europe, Middle East and Africa | Wireless Test
Disaggregation of Revenue [Line Items]
Total	[1]	992	781
Europe, Middle East and Africa | Corporate and Other
Disaggregation of Revenue [Line Items]
Total	[1]
Asia Pacific
Disaggregation of Revenue [Line Items]
Total	[1]	569,174	365,826
Asia Pacific | System Test
Disaggregation of Revenue [Line Items]
Total	[1]	80,017	24,285
Asia Pacific | Wireless Test
Disaggregation of Revenue [Line Items]
Total	[1]	37,805	26,019
Asia Pacific | Corporate and Other
Disaggregation of Revenue [Line Items]
Total	[1]
SOC | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	400,139	292,806
SOC | Point in Time | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	348,044	238,755
SOC | Over Time | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	52,095	54,051
SOC | Americas | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	17,386	16,167
SOC | Europe, Middle East and Africa | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	20,021	16,313
SOC | Asia Pacific | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	362,732	260,326
Memory | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	84,350	48,047
Memory | Point in Time | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	79,398	43,775
Memory | Over Time | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	4,952	4,272
Memory | Americas | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	6,896	8,763
Memory | Europe, Middle East and Africa | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	1,344	433
Memory | Asia Pacific | Semiconductor Test
Disaggregation of Revenue [Line Items]
Total	[1]	76,110	38,851
Universal Robots (UR) | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]	49,697	57,030
Universal Robots (UR) | Point in Time | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]	47,502	55,379
Universal Robots (UR) | Over Time | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]	2,195	1,651
Universal Robots (UR) | Americas | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]	14,743	15,803
Universal Robots (UR) | Europe, Middle East and Africa | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]	24,037	26,609
Universal Robots (UR) | Asia Pacific | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]	10,917	14,618
MiR | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]	9,138	9,106
MiR | Point in Time | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]	9,097	9,106
MiR | Over Time | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]	41
MiR | Americas | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]	3,465	3,539
MiR | Europe, Middle East and Africa | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]	4,080	3,840
MiR | Asia Pacific | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]	1,593	$ 1,727
Autoguide LLC [Member] | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]	1,470
Autoguide LLC [Member] | Point in Time | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]	1,124
Autoguide LLC [Member] | Over Time | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]	346
Autoguide LLC [Member] | Americas | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]	1,470
Autoguide LLC [Member] | Europe, Middle East and Africa | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]
Autoguide LLC [Member] | Asia Pacific | Industrial Automation
Disaggregation of Revenue [Line Items]
Total	[1]

[1] Includes $1.8 million and $1.7 million in 2020 and 2019, for leases of Teradyne’s systems recognized outside ASC 606 “Revenue from Contracts with Customers.

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Financial Instruments - Additional Information (Detail) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 29, 2020	Mar. 31, 2019	Dec. 31, 2019
Financial Instruments and Fair Value [Line Items]
Available-for-sale securities, realized gain	$ 1,400,000	$ 100,000
Available-for-sale securities, realized loss	100,000	100,000
Fair market value of investments with unrealized losses less than one year	42,300,000		$ 23,600,000
Unrealized Gain (loss) on contracts	2,000,000.0	3,200,000
Equity securities unrealized gain loss		$ 2,800,000
Equity securities unrealized loss	6,000,000.0
Debt Mutual Funds
Financial Instruments and Fair Value [Line Items]
Available for sale securities with out contractual maturity date	5,200,000
Mobile Industrial Robots (MiR)
Financial Instruments and Fair Value [Line Items]
Maximum amount of contingent consideration paid for acquisition	61,400,000
Autoguide LLC [Member]
Financial Instruments and Fair Value [Line Items]
Maximum amount of contingent consideration paid for acquisition	106,900,000
Foreign Exchange Contracts
Financial Instruments and Fair Value [Line Items]
Unrealized Gain (loss) on contracts	$ 132,100,000		$ 144,900,000

XML

Schedule of Amortizable Intangible Assets (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 29, 2019	Dec. 31, 2019	Mar. 29, 2020
Finite-Lived Intangible Assets
Gross Carrying Amount		$ 507,836	$ 507,836
Accumulated Amortization		(375,008)	(384,899)
Foreign Currency Translation Adjustment	$ (8,616)	(7,348)
Net Carrying Amount		125,480	114,321
Developed technology
Finite-Lived Intangible Assets
Gross Carrying Amount		361,787	361,787
Accumulated Amortization		(279,000)	(286,166)
Foreign Currency Translation Adjustment	(6,663)	(5,709)
Net Carrying Amount		77,078	68,958
Customer Relationships
Finite-Lived Intangible Assets
Gross Carrying Amount		75,669	75,669
Accumulated Amortization		(59,077)	(60,406)
Foreign Currency Translation Adjustment	(547)	(455)
Net Carrying Amount		16,137	14,716
Trademarks and tradenames
Finite-Lived Intangible Assets
Gross Carrying Amount		70,120	70,120
Accumulated Amortization		(36,671)	(38,067)
Foreign Currency Translation Adjustment	$ (1,406)	(1,184)
Net Carrying Amount		32,265	30,647
Backlog
Finite-Lived Intangible Assets
Gross Carrying Amount		260	260
Accumulated Amortization		$ (260)	$ (260)

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Extended Product Warranty of Short and Long-Term Deferred Revenue and Customer Advances (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Product Warranty Liability [Line Items]
Balance at beginning of period	$ 30,677	$ 27,422
Deferral of new extended warranty revenue	7,600	5,820
Recognition of extended warranty deferred revenue	(4,774)	(6,000)
Balance at end of period	$ 33,503	$ 27,242

XML

Interest Expense on Convertible Senior Notes (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Debt Instrument
Contractual interest expense on the coupon	$ 1,438	$ 1,438
Amortization of the discount component and debt issue fees recognized as interest expense	3,792	3,608
Total interest expense on the convertible debt	$ 5,230	$ 5,046

XML

Reclassifications Out of Accumulated Other Comprehensive Income to Statements of Operations (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest income (expense)	$ 515	$ 70
Amortization of Prior Service Credit
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, net of tax	2	37
Accumulated Other Comprehensive Income (Loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, net of tax	$ 517	$ 107

XML

Changes in Accumulated Other Comprehensive (Loss) Income (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	$ 1,480,158	$ 1,522,354
Other comprehensive loss	(8,259)	(2,666)
Balance	1,550,673	1,470,228
Foreign Currency Translation Reclassification Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(23,514)	(12,523)
Other comprehensive loss before reclassifications, net of tax	(8,779)	(4,659)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0	0
Other comprehensive loss	(8,779)	(4,659)
Balance	(32,293)	(17,182)
Unrealized Gains (Losses) on Marketable Securities
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	3,480	(1,845)
Other comprehensive loss before reclassifications, net of tax	1,037	2,100
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	(515)	(70)
Other comprehensive loss	522	2,030
Balance	4,002	185
Amortization of Prior Service Credit
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	1,180	1,328
Other comprehensive loss before reclassifications, net of tax	0	0
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	(2)	(37)
Other comprehensive loss	(2)	(37)
Balance	1,178	1,291
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance	(18,854)	(13,040)
Other comprehensive loss before reclassifications, net of tax	(7,742)	(2,559)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	(517)	(107)
Other comprehensive loss	(8,259)	(2,666)
Balance	$ (27,113)	$ (15,706)

XML

Net Income Per Common Share - Additional Information (Detail) - shares shares in Millions	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Net Income Loss Per Common Share
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	0.3	0.6

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Acquisitions - Additional Information (Detail)			1 Months Ended	3 Months Ended
	Nov. 13, 2019 USD ($)	Apr. 25, 2018 USD ($)	Jan. 30, 2019 USD ($)	Mar. 29, 2020 USD ($)	Jan. 31, 2019 USD ($)
Mobile Industrial Robots (MiR)
Business Acquisition [Line Items]
Total preliminary purchase price		$ 81,599,000
Arrangement range of outcomes value high				$ 61,400,000
Goodwill, not deductible for tax purposes		$ 41,200,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life		6 years 1 month 6 days
Lemsys [Member]
Business Acquisition [Line Items]
Total preliminary purchase price					$ 1,400,000
Total preliminary purchase price			$ 9,100,000
Acquired value of intangible assets					4,600,000
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life			5 years 2 months 12 days
Net tangible assets					$ 3,100,000
Autoguide LLC [Member]
Business Acquisition [Line Items]
Arrangement range of outcomes value high				$ 106,900,000
Autoguide LLC [Member] | Industrial Automation [Member]
Business Acquisition [Line Items]
Total preliminary purchase price	$ 81,600,000
Cash paid to acquire outstanding common and preferred stock	57,600,000
Contingent consideration	$ 24,000,000.0
Quantity of material to be transported				4,500
Business acquisition percentage of equity	100.00%

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Net Income Per Common Share (Tables)

3 Months Ended

Mar. 29, 2020

Computation of Basic and Diluted Net Income (Loss) Per Common Share

The following table sets forth the computation of basic and diluted net income per common share:

	For the Three Months Ended
	March 29,		March 31,
	2020		2019
	(in thousands, except per share amounts)
Net income for basic and diluted net income per share	$	176,191	$	109,138
Weighted average common shares-basic		166,589		173,532
Effect of dilutive potential common shares:
Incremental shares from assumed conversion of convertible notes (1)		7,333		2,186
Convertible note hedge warrant shares (2)		5,492		—
Restricted stock units		1,163		1,021
Stock options		134		222
Employee stock purchase plan		25		11
Dilutive potential common shares		14,147		3,440
Weighted average common shares-diluted		180,736		176,972
Net income per common share-basic	$	1.06	$	0.63
Net income per common share-diluted	$	0.97	$	0.62

(1) Incremental shares from assumed conversion of the convertible notes was calculated using the difference between the average Teradyne stock price for the period and the conversion price of $31.61, multiplied by 14.6 million shares. The result of this calculation, representing the total intrinsic value of the convertible debt, was divided by the average Teradyne stock price for the period.

(2) Convertible notes hedge warrant shares were calculated using the difference between the average Teradyne stock price for the period and the warrant price of $39.66, multiplied by 14.6 million shares. The result of this calculation, representing the total intrinsic value of the warrant, was divided by the average Teradyne stock price for the period.

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Schedule of Segment Reporting Information by Segment Charges (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Segment Reporting Information [Line Items]
Contingent consideration adjustment	$ (10,020)	$ 2,970
Universal Robots (UR)
Segment Reporting Information [Line Items]
Contingent consideration adjustment		3,800
Semiconductor Test
Segment Reporting Information [Line Items]
Cost of revenues-inventory charge	3,026	1,174
Contingent consideration adjustment	10,000	3,000
Industrial Automation
Segment Reporting Information [Line Items]
Acquisition related costs	618	1,261
Corporate And Eliminations | Restructuring and other
Segment Reporting Information [Line Items]
Acquisition related costs	741	0
Corporate And Eliminations | Universal Robots (UR) | Restructuring and other
Segment Reporting Information [Line Items]
Contingent consideration adjustment	(7,142)	0
Corporate And Eliminations | Mobile Industrial Robots (MiR) | Restructuring and other
Segment Reporting Information [Line Items]
Contingent consideration adjustment	$ (2,878)	$ 3,003

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Schedule of Effect of Derivative Instruments in Statement of Operations Recognized (Parenthetical) (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) on foreign currency transactions	$ 2.0	$ 3.2

XML

Restructuring and Other - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Restructuring Cost and Reserve
Contingent consideration adjustment	$ (10,020)	$ 2,970
Semiconductor Test
Restructuring Cost and Reserve
Contingent consideration adjustment	10,000	3,000
Severance benefit and charges	1,400	1,300
Impairment charges fixed assets	$ 700	$ 800

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Schedule of Changes in Fair Value of Level 3 Contingent Consideration (Parenthetical) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Payments of contingent consideration	$ 8,852	$ 27,615
Increase (decrease) in contingent consideration	(10,020)	2,970
Universal Robots (UR)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Payments of contingent consideration		30,800
Increase (decrease) in contingent consideration		3,800
Avionics Interface Technologies, LLC
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Payments of contingent consideration	8,900
MiR
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Payments of contingent consideration	2,900
Increase (decrease) in contingent consideration		$ 3,000
Autoguide LLC [Member]
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Increase (decrease) in contingent consideration	$ 7,100

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Schedule of Reported Available for Sale Marketable Securities (Detail) - USD ($) $ in Thousands	Mar. 29, 2020	Dec. 31, 2019
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	$ 286,073	$ 211,596
Available-for-sale marketable securities, Unrealized Gain	6,164	4,687
Available-for-sale marketable securities, Unrealized (Loss)	(1,187)	(262)
Available-for-sale marketable securities, Fair Market Value	291,050	216,021
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	42,283	23,999
Marketable securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	210,722	137,144
Available-for-sale marketable securities, Unrealized Gain	430	160
Available-for-sale marketable securities, Unrealized (Loss)	(151)	(1)
Available-for-sale marketable securities, Fair Market Value	211,001	137,303
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	32,037	2,922
Long-term marketable securities
Schedule of Available-for-sale Securities
Available-for-sale marketable securities, Cost	75,351	74,452
Available-for-sale marketable securities, Unrealized Gain	5,734	4,527
Available-for-sale marketable securities, Unrealized (Loss)	(1,036)	(261)
Available-for-sale marketable securities, Fair Market Value	80,049	78,718
Available-for-sale marketable securities, Fair Market Value of Investments with Unrealized Losses	$ 10,246	$ 21,077

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Schedule of Reconciliation of Effective Tax Rate (Detail)	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Income Tax Disclosure [Line Items]
US statutory federal tax rate	21.00%	21.00%
Foreign taxes	(5.70%)	(3.10%)
Tax credits	(1.90%)	(3.00%)
Discrete benefit related to equity compensation	(4.10%)	(4.10%)
Discrete benefit related to release of reserves for uncertain tax positions	0.00%	(27.60%)
Other, net	1.30%	0.70%
Effective tax rate	10.60%	(16.10%)

XML

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 29, 2020	Mar. 31, 2019
Revenues:
Total revenues	[1]	$ 704,355	$ 494,099
Cost of revenues:
Total cost of revenues (exclusive of acquired intangible assets amortization shown separately below)		298,805	206,464
Gross profit		405,550	287,635
Operating expenses:
Selling and administrative		111,388	102,013
Engineering and development		85,159	76,791
Acquired intangible assets amortization		9,891	10,634
Restructuring and other		(7,606)	5,112
Total operating expenses		198,832	194,550
Income from operations		206,718	93,085
Non-operating (income) expense:
Interest income		(2,751)	(4,989)
Interest expense		5,551	5,520
Other (income) expense, net		6,849	(1,425)
Income before income taxes		197,069	93,979
Income tax provision (benefit)		20,878	(15,159)
Net income		$ 176,191	$ 109,138
Net income per common share:
Basic		$ 1.06	$ 0.63
Diluted		$ 0.97	$ 0.62
Weighted average common shares—basic		166,589	173,532
Weighted average common shares—diluted		180,736	176,972
Cash dividend declared per common share		$ 0.10	$ 0.09
Product [Member]
Revenues:
Total revenues		$ 610,906	$ 393,442
Cost of revenues:
Total cost of revenues (exclusive of acquired intangible assets amortization shown separately below)		259,996	165,368
Service [Member]
Revenues:
Total revenues		93,449	100,657
Cost of revenues:
Total cost of revenues (exclusive of acquired intangible assets amortization shown separately below)		$ 38,809	$ 41,096

[1] Includes $1.8 million and $1.7 million in 2020 and 2019, for leases of Teradyne’s systems recognized outside ASC 606 “Revenue from Contracts with Customers.

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CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) - $ / shares	3 Months Ended
	Mar. 29, 2020	Mar. 31, 2019
Common Stock, Dividends, Per Share, Cash Paid	$ 0.10	$ 0.09

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Goodwill and Acquired Intangible Assets

3 Months Ended

Mar. 29, 2020

Goodwill and Intangible Assets

M. GOODWILL AND ACQUIRED INTANGIBLE ASSETS

Goodwill

Teradyne performs its annual goodwill impairment test as required under the provisions of ASC 350-10, “Intangibles—Goodwill and Other” on December 31 of each fiscal year unless interim indicators of impairment exist. Goodwill is considered impaired when the net book value of a reporting unit exceeds its estimated fair value.

The changes in the carrying amount of goodwill by reportable segments for the three months ended March 29, 2020, were as follows:

	Industrial Automation			System Test			Wireless Test			Semiconductor Test			Total
	(in thousands)
Balance at December 31, 2019
Goodwill	$	396,483		$	158,699		$	361,819		$	261,996		$	1,178,997
Accumulated impairment losses		—			(148,183	)		(353,843	)		(260,540	)		(762,566	)
		396,483			10,516			7,976			1,456			416,431
AutoGuide acquisition		(149	)		—			—			—			(149	)
Foreign currency translation adjustment		(6,354	)		—			—			5			(6,349	)
Balance at March 29, 2020
Goodwill		389,980			158,699			361,819			262,001			1,172,499
Accumulated impairment losses		—			(148,183	)		(353,843	)		(260,540	)		(762,566	)
	$	389,980		$	10,516		$	7,976		$	1,461		$	409,933

Intangible Assets

Teradyne reviews long-lived assets for impairment whenever events or changes in business circumstances indicate that the carrying amount of the assets may not be fully recoverable or that the useful lives of these assets are no longer appropriate.

Amortizable intangible assets consist of the following and are included in intangible assets, net on the balance sheet:

	Gross Carrying Amount		Accumulated Amortization			Foreign Currency Translation Adjustment			Net Carrying Amount
	(in thousands)
Balance, March 29, 2020
Developed technology	$	361,787	$	(286,166	)	$	(6,663	)	$	68,958
Customer relationships		75,669		(60,406	)		(547	)		14,716
Tradenames and trademarks		70,120		(38,067	)		(1,406	)		30,647
Backlog		260		(260	)		—			—
Total intangible assets	$	507,836	$	(384,899	)	$	(8,616	)	$	114,321
Balance, December 31, 2019
Developed technology	$	361,787	$	(279,000	)	$	(5,709	)	$	77,078
Customer relationships		75,669		(59,077	)		(455	)		16,137
Tradenames and trademarks		70,120		(36,671	)		(1,184	)		32,265
Backlog		260		(260	)		—			—
Total intangible assets	$	507,836	$	(375,008	)	$	(7,348	)	$	125,480

Aggregate intangible asset amortization expense for the three months ended March 29, 2020 and March 31, 2019 was $9.9 million and $10.6 million, respectively.

Estimated intangible asset amortization expense for each of the five succeeding fiscal years is as follows:

	Amortization Expense
Year	(in thousands)
2020 (remainder)		20,411
2021		20,391
2022		19,498
2023		19,023
2024		18,718
Thereafter		16,280

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Commitments and Contingencies

3 Months Ended

Mar. 29, 2020

Commitments and Contingencies

Q. COMMITMENTS AND CONTINGENCIES

Purchase Commitments

As of March 29, 2020, Teradyne had entered into purchase commitments for certain components and materials. The purchase commitments covered by the agreements aggregate to approximately $543.8 million, of which $529.4 million is for less than one year.

Legal Claims

Teradyne is subject to various legal proceedings and claims which have arisen in the ordinary course of business such as, but not limited to, patent, employment, commercial and environmental matters. Teradyne believes that it has meritorious defenses against all pending claims and intends to vigorously contest them. While it is not possible to predict or determine the outcomes of any pending claims or to provide possible ranges of losses that may arise, Teradyne believes the potential losses associated with all of these actions are unlikely to have a material adverse effect on its business, financial position or results of operations.