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Balance Sheet Information (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2011
Balance Sheet Information |
Schedule of available-for-sale securities |
|  | December 31, 2011 |
--- | --- | --- | ---
|  | Amortized Cost |  | Gains in Accumulated Other Comprehensive Income |  | Losses in Accumulated Other Comprehensive Income |  | Estimated Fair Value |
Commercial paper |  | $ | 15,889 |  | $ | 6 |  | $ | — |  | $ | 15,895 |
FDIC insured corporate bonds |  |  | 187,336 |  |  | 169 |  |  | — |  |  | 187,505 |
Treasury bills |  |  | 70,147 |  |  | 44 |  |  | — |  |  | 70,191 |
Total available-for-sale securities |  | $ | 273,372 |  | $ | 219 |  | $ | — |  | $ | 273,591 |
|  | December 31, 2010 |
--- | --- | --- | ---
|  | Amortized Cost |  | Gains in Accumulated Other Comprehensive Income |  | Losses in Accumulated Other Comprehensive Income |  | Estimated Fair Value |
Commercial paper |  | $ | 128,527 |  | $ | 61 |  | $ | — |  | $ | 128,588 |
FDIC insured corporate bonds |  |  | 129,353 |  |  | 24 |  |  | — |  |  | 129,377 |
Treasury bills |  |  | 136,203 |  |  | 12 |  |  | — |  |  | 136,215 |
Total available-for-sale securities |  | $ | 394,083 |  | $ | 97 |  | $ | — |  | $ | 394,180 |
Schedule of contractual maturities of available-for-sale debt securities |
|  | Estimated Fair Value |
--- | --- | --- | ---
Due in one year or less |  | $ | 37,088 |
Due in 1-2 years |  |  | 236,503 |
Total investments in debt securities |  | $ | 273,591 |
Schedule of inventories |
|  | December 31, 2011 |  | December 31, 2010 |  |
--- | --- | --- | --- | --- | --- | ---
Raw materials |  | $ | 57,169 |  | $ | 49,953 |  |
Work in process |  |  | 20,118 |  |  | 33,181 |  |
Finished goods |  |  | 36,147 |  |  | 25,353 |  |
|  | $ | 113,434 |  | $ | 108,487 |  |
Schedule of property, plant and equipment |
|  | December 31, |  |
--- | --- | --- | --- | ---
|  | Estimated Useful Lives
|  | 2011 |  | 2010
Land |  | $ | 12,535 |  | $ | 7,274 |  |
Buildings and improvements |  |  | 34,589 |  |  | 30,731 |  | 10-40 years
Machinery and equipment |  |  | 102,241 |  |  | 73,173 |  | 3-10 years
Leasehold improvements |  |  | 6,025 |  |  | 2,276 |  | 3-7 years
Gross property, plant, and equipment at cost |  |  | 155,390 |  |  | 113,454 |  |
Less: accumulated depreciation and amortization |  |  | 69,323 |  |  | 71,134 |  |
Net property, plant, and equipment at cost |  | $ | 86,067 |  | $ | 42,320 |  |
Schedule of changes in goodwill |
|  | Year ended December 31, |
--- | --- | --- | ---
|  | 2011 |  | 2010 |
Beginning Balance |  | $ | 52,003 |  | $ | 52,003 |
Write-off (see Note 3) |  |  | (10,836 | ) |  | — |
Acquisition (see Note 5) |  |  | 14,661 |  |  | — |
Ending Balance |  | $ | 55,828 |  | $ | 52,003 |
Schedule of intangible assets |
|  | December 31, 2011 |  | December 31, 2010 |
--- | --- | --- | --- | --- | ---
|  | Purchased technology |  | Other intangible assets |  | Total intangible assets |  | Purchased technology |  | Other intangible assets |  | Total intangible assets |
Gross intangible assets |  | $ | 109,248 |  | $ | 19,635 |  | $ | 128,883 |  | $ | 98,473 |  | $ | 22,734 |  | $ | 121,207 |
Less accumulated amortization |  |  | (89,620 | ) |  | (13,381 | ) |  | (103,001 | ) |  | (86,376 | ) |  | (17,938 | ) |  | (104,314 | )
Intangible assets, net |  | $ | 19,628 |  | $ | 6,254 |  | $ | 25,882 |  | $ | 12,097 |  | $ | 4,796 |  | $ | 16,893 |
Schedule of estimated aggregate amortization expense for intangible assets with definite useful lives |
2012 |  | $ | 4,538 |
2013 |  |  | 3,286 |
2014 |  |  | 2,961 |
2015 |  |  | 2,859 |
2016 |  |  | 2,671 |
Schedule of accrued expenses |
|  | December 31, |
--- | --- | --- | ---
|  | 2011 |  | 2010 |
Payroll and related benefits |  | $ | 19,017 |  | $ | 27,374 |
Sales, use, income and other taxes |  |  | 6,315 |  |  | 4,914 |
Customer deposits and advanced billings |  |  | 57,075 |  |  | 129,225 |
Warranty |  |  | 9,778 |  |  | 9,238 |
Restructuring liability |  |  | 956 |  |  | 714 |
Other |  |  | 14,515 |  |  | 11,545 |
|  | $ | 107,656 |  | $ | 183,010 |
Schedule of changes in warranty liability |
|  | Year ended December 31, |
--- | --- | --- | ---
|  | 2011 |  | 2010 |
Balance as of the beginning of year |  | $ | 9,238 |  | $ | 6,675 |
Warranties issued during the year |  |  | 12,465 |  |  | 9,695 |
Settlements made during the year |  |  | (11,925 | ) |  | (7,132 | )
Balance as of the end of year |  | $ | 9,778 |  | $ | 9,238 |

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