FINANCIAL INSTRUMENTS (Tables)

62 Months Ended

Dec. 31, 2012

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 December 31, 2012 and 2011.

	December 31, 2012
	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	$	139,354	$	—	$	—	$	139,354
Cash equivalents		183,039		16,527		—		199,566
Available for sale securities:
U.S. Treasury securities		312,116		—		—		312,116
U.S. government agency securities		—		217,655		—		217,655
Commercial paper		—		70,434		—		70,434
Corporate debt securities		—		55,755		—		55,755
Equity and debt mutual funds		9,717		—		—		9,717
Certificates of deposit and time deposits		—		1,627		—		1,627
Non-U.S. government securities		—		84		—		84
Total		644,226		362,082		—		1,006,308
Derivatives		—		121		—		121
Total	$	644,226	$	362,203	$	—	$	1,006,429
Liabilities
Contingent consideration	$	—	$	—	$	388	$	388
Total	$	—	$	—	$	388	$	388

Reported as follows:

	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	322,393	$	16,527	$	—	$	338,920
Marketable securities		239,192		192,324		—		431,516
Long-term marketable securities		82,641		153,231		—		235,872
Prepayments and other current assets		—		121		—		121
	$	644,226	$	362,203	$	—	$	1,006,429
Liabilities
Contingent consideration	$	—	$	—	$	388	$	388
	$	—	$	—	$	388	$	388

	December 31, 2011
	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	$	161,243	$	—	$	—	$	161,243
Cash equivalents		396,329		16,164		—		412,493
Available for sale securities:
U.S. government agency securities		—		83,197		—		83,197
Corporate debt securities		—		44,829		—		44,829
Commercial paper		—		22,075		—		22,075
U.S. Treasury securities		14,180		—		—		14,180
Equity and debt mutual funds		8,237		—		—		8,237
Certificates of deposit and time deposits		—		8,117		—		8,117
Non-U.S. government securities		—		274		—		274
Total	$	579,989	$	174,656	$	—	$	754,645
Liabilities
Derivatives	$	—	$	314	$	—	$	314
Contingent consideration		—		—		68,892		68,892
Total	$	—	$	314	$	68,892	$	69,206

Reported as follows:

	(Level 1)		(Level 2)		(Level 3)		Total
	(in thousands)
Assets
Cash and cash equivalents	$	557,572	$	16,164	$	—	$	573,736
Marketable securities		9,044		87,458		—		96,502
Long-term marketable securities		13,373		71,034		—		84,407
	$	579,989	$	174,656	$	—	$	754,645
Liabilities
Other accrued liabilities	$	—	$	314	$	—	$	314
Contingent consideration		—		—		68,892		68,892
		—	$	314	$	68,892	$	69,206

Schedule Of Changes In Fair Value Of Level 3 Financial Assets

Changes in the fair value of Level 3 contingent consideration for the year ended December 31, 2012 and December 31, 2011 were as follows:

	Contingent Consideration
	(in thousands)
Balance at December 31, 2010	$	—
Acquisition of LitePoint		68,892
Balance at December 31, 2011		68,892
Fair value adjustment		(8,794	)
Payments		(59,710	)
Balance at December 31, 2012	$	388

Schedule Of Carrying Amounts And Fair Values Of Financial Instruments

The carrying amounts and fair values of financial instruments at December 31, 2012 and 2011 were as follows:

	December 31, 2012				December 31, 2011
	Carrying Value		Fair Value		Carrying Value		Fair Value
	(in thousands)
Cash and cash equivalents	$	338,920	$	338,920	$	573,736	$	573,736
Marketable securities		667,388		667,388		180,909		180,909
Convertible debt (1)		169,896		589,000		156,098		485,925
Japan loan		3,491		3,491		6,431		6,431

(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 feature.

Schedule Of Available-For-Sale Marketable Securities

The following tables summarize the composition of available for sale marketable securities at December 31, 2012 and 2011:

	December 31, 2012
	Available-for-Sale									Fair Market Value of Investments with Unrealized  Losses
	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value
	(in thousands)
U.S. Treasury securities	$	311,915	$	216	$	(15	)	$	312,116	$	1,018
U.S. government agency securities		217,396		262		(3	)		217,655		9,018
Commercial paper		70,431		9		(6	)		70,434		25,209
Corporate debt securities		53,405		2,414		(64	)		55,755		23,255
Equity and debt mutual funds		8,767		961		(11	)		9,717		600
Certificates of deposit and time deposits		1,627		—		—			1,627		—
Non-U.S. government securities		84		—		—			84		—
	$	663,625	$	3,862	$	(99	)	$	667,388	$	59,100

Reported as follows:

	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Marketable securities	$	431,324	$	203	$	(11	)	$	431,516	$	41,110
Long-term marketable securities		232,301		3,659		(88	)		235,872		17,990
	$	663,625	$	3,862	$	(99	)	$	667,388	$	59,100

	December 31, 2011
	Available-for-Sale									Fair Market Value of Investments with Unrealized  Losses
	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value
	(in thousands)
U.S. government agency securities	$	83,070	$	152	$	(25	)	$	83,197	$	28,510
Corporate debt securities		43,077		1,893		(141	)		44,829		17,033
Commercial paper		22,083		2		(10	)		22,075		9,479
U.S. Treasury securities		14,141		39		—			14,180		—
Equity and debt mutual funds		7,876		477		(116	)		8,237		3,749
Certificates of deposit and time deposits		8,122		—		(5	)		8,117		5,800
Non-U.S. government securities		256		18		—			274		—
	$	178,625	$	2,581	$	(297	)	$	180,909	$	64,571

Reported as follows:

	Cost		Unrealized Gain		Unrealized (Loss)			Fair Market Value		Fair Market Value of Investments with Unrealized Losses
	(in thousands)
Marketable securities	$	96,518	$	24	$	(40	)	$	96,502	$	35,595
Long-term marketable securities		82,107		2,557		(257	)		84,407		28,976
	$	178,625	$	2,581	$	(297	)	$	180,909	$	64,571

Contractual Maturities of Available-For-Sale Marketable Securities

The contractual maturities of investments held at December 31, 2012 were as follows:

	Cost		Fair Value
	(in thousands)
Due within one year	$	431,324	$	431,516
Due after 1 year through 5 years		208,754		209,902
Due after 5 years through 10 years		7,493		7,773
Due after 10 years		16,054		18,197
Total	$	663,625	$	667,388

Schedule Of Notional Amount Of Derivatives

At December 31, 2012 and 2011, Teradyne had the following contracts to buy and sell non-U.S. currencies for U.S. dollars and other non-U.S. currencies with the following notional amounts:

	December 31, 2012								December 31, 2011
	Buy Position			Sell Position		Net Total			Buy Position			Sell Position		Net Total
	(in millions)
Japanese Yen	$	—		$	36.3	$	36.3		$	—		$	50.8	$	50.8
Taiwan Dollar		—			4.2		4.2			(0.8	)		6.3		5.5
British Pound Sterling		—			5.5		5.5			—			10.1		10.1
Euro		(16.8	)		1.3		(15.5	)		(15.2	)		2.1		(13.1	)
Total	$	(16.8	)	$	47.3	$	30.5		$	(16.0	)	$	69.3	$	53.3

Schedule Of Fair Value Of Derivative Instruments

The following table summarizes the fair value of derivative instruments as of December 31, 2012 and 2011:

	Balance Sheet Location	December 31, 2012		December 31, 2011
		(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange contracts	Prepayments and other current assets	$	121	$	—
Foreign exchange contracts	Other accrued liabilities		—		314
Total derivatives		$	121	$	314

Schedule Of Effect Of Derivative Instruments On Statement Of Operations Recognized

The following table summarizes the effect of derivative instruments in the statement of operations recognized for the years ended December 31, 2012, 2011 and 2010 (the table does not reflect the corresponding gain (loss) from the remeasurement of the balance sheet):

	Location of Gains (Losses) Recognized in Statement of Operations		December 31, 2012		December 31, 2011			December 31, 2010
			(in thousands)
Derivatives not designated as hedging instruments:
Foreign exchange contracts		Interest expense and other	$	3,974	$	(1,327	)	$	(2,289	)
Total derivatives			$	3,974	$	(1,327	)	$	(2,289	)