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Balance Sheet Information (Tables)

12 Months Ended

Dec. 31, 2013

Balance Sheet Information

Schedule of available-for-sale securities

Available-for-sale securities consist of the following (in thousands):

		December 31, 2013
					Gains in			Losses in
					Accumulated			Accumulated
					Other			Other
		Amortized			Comprehensive			Comprehensive			Estimated
		Cost			Income			Income			Fair Value
U.S. treasuries		$	130,956		$	22		$	(1	)	$	130,977
Government agency securities		61,004			9			—			61,013
Corporate debt		77,582			55			(36		)	77,601
Commercial paper		11,947			—			—			11,947
Total available-for-sale securities		$	281,489		$	86		$	(37	)	$	281,538

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

Schedule of available-for-sale securities in a loss position

Available-for-sale securities in a loss position at December 31, 2013 are as follows (in thousands):

		Less than 12 months						Total
					Gross						Gross
					Unrealized						Unrealized
		Fair value			Losses			Fair value			Losses
Corporate debt		$	37,654		$	(36	)	$	37,654		$	(36	)
U.S. treasuries		29,068			(1		)	29,068			(1		)
Total		$	66,722		$	(37	)	$	66,722		$	(37	)

Schedule of contractual maturities of available-for-sale securities

Contractual maturities of available-for-sale securities as of December 31, 2013 are as follows (in thousands):

		Estimated
		Fair Value
Due in one year or less		$	196,015
Due in 1–2 years		64,156
Due in 2–3 years		21,367
Total investments in securities		$	281,538

Schedule of inventories

Inventories (in thousands)

		December 31,
		2013			2012
Materials		$	34,301		$	36,523
Work in process		12,900			13,363
Finished goods		12,525			9,921
		$	59,726		$	59,807

Schedule of property, plant and equipment

Property, Plant and Equipment (in thousands)

		December 31,						Estimated
		2013			2012			Useful Lives
Land		$	12,535		$	12,535
Building and improvements		52,050			49,498			10-40 years
Machinery and equipment		110,228			110,150			3-10 years
Leasehold improvements		5,888			5,677			3-7 years
Gross property, plant and equipment at cost		180,701			177,860
Less: accumulated depreciation and amortization		91,562			79,558
Net property, plant and equipment		$	89,139		$	98,302

Schedule of changes in goodwill

Changes in our goodwill are as follows (in thousands):

		December 31,
		2013			2012
Beginning balance		$	55,828		$	55,828
Acquisition (see Business Combinations)		35,520			—
Ending balance		$	91,348		$	55,828

Schedule of intangible assets

		December 31, 2013									December 31, 2012
					Other			Total						Other			Total
		Purchased			intangible			intangible			Purchased			intangible			intangible
(in thousands)		technology			assets			assets			technology			assets			assets
Gross intangible assets		$	187,478		$	40,675		$	228,153		$	109,248		$	19,635		$	128,883
Less accumulated amortization		(97,524		)	(15,913		)	(113,437		)	(93,436		)	(14,473		)	(107,909		)
Intangible assets, net		$	89,954		$	24,762		$	114,716		$	15,812		$	5,162		$	20,974

Schedule of estimated aggregate amortization expense for intangible assets with definite useful lives

The estimated aggregate amortization expense for intangible assets with definite useful lives for each of the next five fiscal years is as follows (in thousands):

2014		$	11,569
2015		19,376
2016		18,498
2017		15,876
2018		12,244

Schedule of other assets

		December 31,
(in thousands)		2013			2012
Cost method investment		$	16,884		$	14,494
Income taxes receivable		21,128			—
Other		714			2,287
		$	38,726		$	16,781

Schedule of accrued expenses and other current liabilities

		December 31,
(in thousands)		2013			2012
Payroll and related benefits		$	11,020		$	14,581
Sales, use and other taxes		5,402			6,480
Contingent consideration		20,098			—
Warranty		5,662			4,942
Restructuring liability		533			1,875
Other		8,369			13,523
		$	51,084		$	41,401

Schedule of changes in warranty liability

		December 31,
		2013			2012
Balance as of the beginning of year		$	4,942		$	8,731
Warranties issued during the year		5,291			3,563
Settlements made during the year		(5,580		)	(7,060		)
Changes in estimate during the period		1,009			(292		)
Balance as of the end of year		$	5,662		$	4,942

Schedule of other liabilities

		December 31,
(in thousands)		2013			2012
Contingent consideration		$	9,270		$	—
Income taxes payable		—			3,986
Other		379			544
		$	9,649		$	4,530

Schedule of the components of accumulated other comprehensive income

As of December 31, 2013		Gross			Taxes			Net
Translation adjustments		$	5,718		$	(392	)	$	5,326
Minimum pension liability		(1,160		)	424			(736		)
Unrealized gain on available-for-sale securities		49			(18		)	31
Accumulated other comprehensive income		$	4,607		$	14		$	4,621

As of December 31, 2012		Gross			Taxes			Net
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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