Balance Sheet Information (Tables)

12 Months Ended

Dec. 31, 2012

Balance Sheet Information

Schedule of available-for-sale securities

Available-for-sale securities 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
Treasury bills	$	184,102	$	76	$	—	$	184,178
Government agency securities		8,056		—		—		8,056
Total available-for-sale securities	$	192,158	$	76	$	—	$	192,234

	December 31, 2011
	Amortized Cost		Gains in Accumulated Other Comprehensive Income		Losses in Accumulated Other Comprehensive Income			Estimated Fair Value
Treasury bills	$	70,147	$	46	$	(1	)	$	70,192
Government agency securities		88,585		62		(6	)		88,641
FDIC guaranteed corporate debt		114,641		124		(7	)		114,758
Total available-for-sale securities	$	273,373	$	232	$	(14	)	$	273,591

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

Contractual maturities of available-for-sale debt securities as of December 31, 2012 are as follows (in thousands):

	Estimated Fair Value
Due in one year or less	$	120,621
Due in 1 - 2 years		71,613
Total investments in debt securities	$	192,234

Schedule of inventories

Inventories (in thousands):

	December 31,
	2012		2011
Materials	$	36,523	$	57,169
Work in process		13,363		20,118
Finished goods		9,921		36,147
	$	59,807	$	113,434

Schedule of property, plant and equipment

Property, Plant and Equipment (in thousands):

	December 31,
					Estimated Useful Lives
	2012		2011
Land	$	12,535	$	12,535
Building and improvements		49,498		34,589	10 - 40 years
Machinery and equipment		110,150		102,241	3 - 10 years
Leasehold improvements		5,677		6,025	3 - 7 years
Gross property, plant and equipment at cost		177,860		155,390
Less: accumulated depreciation and amortization		79,558		69,323
Net property, plant and equipment	$	98,302	$	86,067

Schedule of changes in goodwill

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

	December 31,
	2012		2011
Beginning Balance	$	55,828	$	52,003
Write-off (see Note 3. Discontinued Operations)		—		(10,836	)
Acquisition (see Note 5. Business Combinations)		—		14,661
Ending Balance	$	55,828	$	55,828

Schedule of intangible assets

	December 31, 2012									December 31, 2011
(in thousands)	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		$	109,248		$	19,635		$	128,883
Less accumulated amortization		(93,436	)		(14,473	)		(107,909	)		(89,620	)		(13,381	)		(103,001	)
Intangible assets, net	$	15,812		$	5,162		$	20,974		$	19,628		$	6,254		$	25,882

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):

2013	$	3,556
2014		2,919
2015		2,752
2016		2,530
2017		1,544

Schedule of accrued expenses and other current liabilities

	December 31,
(in thousands)	2012		2011
Payroll and related benefits	$	14,581	$	19,017
Sales, use and other taxes		6,480		6,315
Customer deposits		32,719		57,075
Warranty		4,942		8,731
Restructuring liability		1,875		956
Other		13,663		14,532
	$	74,260	$	106,626

Schedule of changes in warranty liability

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

	December 31,
	2012			2011
Balance as of the beginning of year	$	8,731		$	8,266
Warranties issued during the year		3,563			7,366
Settlements made during the year		(7,060	)		(8,462	)
Changes in estimate during the period		(292	)		1,561
Balance as of the end of year	$	4,942		$	8,731

Schedule of components of accumulated other comprehensive income

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

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

December 31, 2011	Gross			Taxes			Net
Translation adjustments	$	8,111		$	(1,022	)	$	7,089
Defined benefit pension plan		(1,069	)		431			(638	)
Unrealized gain (loss) on available for sale securities		218			(79	)		139
Accumulated other comprehensive income	$	7,260		$	(670	)	$	6,590