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FINANCIAL INSTRUMENTS (Tables) | 62 Months Ended
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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 | )

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- Definition Tabular disclosure of the notional amounts of outstanding derivative positions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5579245-113959 + Details
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