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Balance Sheet Information (Tables)

9 Months Ended

Sep. 30, 2013

Balance Sheet Information

Schedule of available-for-sale securities and gains and losses in accumulated other comprehensive income

Total available-for-sale securities and gains and losses in accumulated other comprehensive income consist of the following (in thousands):

		September 30, 2013
		Amortized Cost			Gains in Accumulated Other Comprehensive Income			Losses in Accumulated Other Comprehensive Income			Estimated Fair Value
United States treasuries		$	180,101		$	63		$	(3	)	$	180,161
Corporate bonds		74,778			29			(86		)	74,721
Government agency securities		55,657			7			(1		)	55,663
Commercial paper		11,943			—			—			11,943
Total available-for-sale securities		$	322,479		$	99		$	(90	)	$	322,488

Total available-for-sale securities and gains and losses in accumulated other comprehensive income consist of the following (in thousands):

		December 31, 2012
		Amortized Cost			Gains in Accumulated Other Comprehensive Income			Losses in Accumulated Other Comprehensive Income			Estimated Fair Value
United States treasuries		$	184,102		$	76		$	—		$	184,178
Government agency securities		8,056			—			—			8,056
Total available-for-sale securities		$	192,158		$	76		$	—		$	192,234

Summary of fair value of short-term investments that have been in an unrealized loss position for less than 12 months or for 12 months or longer

The table below shows the fair value of short-term investments that have been in an unrealized loss position for less than 12 months (in thousands):

		September 30, 2013
		Less than 12 months						Total
		Estimated Fair Value			Gross Unrealized Losses			Estimated Fair Value			Gross Unrealized Losses
United States treasuries		$	8,882		$	(3	)	$	8,882		$	(3	)
Corporate bonds		49,447			(86		)	49,447			(86		)
Government agency securities		7,999			(1		)	7,999			(1		)
Total		$	66,328		$	(90	)	$	66,328		$	(90	)

Schedule of contractual maturities of available-for-sale debt securities

Contractual maturities of available-for-sale debt securities are as follows (in thousands):

		September 30, 2013
		Estimated Fair Value
Due in one year or less		$	230,968
Due in 1–2 years		53,295
Due in 2–3 years		38,225
Total available-for-sale securities		$	322,488

Schedule of inventories

Inventories are stated at the lower of cost (principally first-in, first-out) or market. Inventories consist of (in thousands):

		September 30,			December 31,
		2013			2012
Materials		$	35,377		$	36,523
Work in process		19,590			13,363
Finished goods		2,618			9,921
		$	57,585		$	59,807

Schedule of changes in warranty liability

Changes in our warranty liability during the period are as follows (in thousands):

		September 30,
		2013			2012
Balance as of the beginning of period		$	4,942		$	8,731
Warranties issued during the period		2,778			2,486
Settlements made during the period		(3,315		)	(6,389		)
Changes in estimate during the period		—			1,418
Balance as of the end of period		$	4,405		$	6,246

Schedule of the components of accumulated other comprehensive income

The components of accumulated other comprehensive income are (in thousands):

		Gross			Taxes			Net
As of September 30, 2013
Translation adjustments		$	5,694		$	(352	)	$	5,342
Minimum pension liability		(1,285		)	510			(775		)
Unrealized gain on available-for-sale securities		9			(4		)	5
Accumulated other comprehensive income		$	4,418		$	154		$	4,572

		Gross			Taxes			Net
As of December 31, 2012
Translation adjustments		$	7,040		$	(339	)	$	6,701
Minimum pension liability		(1,285		)	510			(775		)
Unrealized gain on available-for-sale securities		76			(29		)	47
Accumulated other comprehensive income		$	5,831		$	142		$	5,973

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Tabular disclosure of the components of accumulated other comprehensive income (loss).

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-Name Accounting Standards Codification

-Topic 220

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