Income Taxes (Tables)

12 Months Ended

Dec. 31, 2012

Income Tax Disclosure [Abstract]

Schedule of Income before Income Tax, Domestic and Foreign

Domestic and foreign pre-tax (loss) income for 2012, 2011 and 2010 were as follows:

	Year ended December 31,
	2012			2011		2010
Domestic	$	(29,483	)	$	55,537	$	113,145
Foreign	(2,391		)	3,435		3,384
	$	(31,874	)	$	58,972	$	116,529

Schedule of Components of Income Tax Expense (Benefit)

Income tax (benefit) expense for 2012, 2011 and 2010 consisted of the following:

	Year ended December 31,
	2012			2011			2010
Current:
Federal	$	1,050		$	(7,138	)	$	634
State	280			3,082			901
Foreign	1,652			278			(861		)
	2,982			(3,778		)	674
Deferred:
Federal	(12,625		)	13,974			(66,408		)
State	4,158			219			(8,374		)
Foreign	(220		)	407			(200		)
	(8,687		)	14,600			(74,982		)
Net income tax (benefit) expense	$	(5,705	)	$	10,822		$	(74,308	)

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of income tax (benefit) expense as computed at the U.S. federal statutory income tax rate to the provision for income tax (benefit) expense for 2012, 2011 and 2010 is as follows:

	Year ended December 31,
	2012		2011		2010
Tax (benefit) expense at U.S. statutory rate	(35.0	)%	35.0	%	35.0	%
State income tax, net of federal effect	—		1.0		0.7
Change in valuation allowance	9.4		0.2		(96.4	)
Foreign income tax	0.2		(0.5	)	0.1
Foreign subsidiary tax holiday	2.4		(2.0	)	(0.9	)
Stock-based compensation	6.1		2.6		0.4
Increase (reduction) of uncertain tax position liability	1.7		(11.2	)	—
Tax credits	(1.4	)	(14.8	)	(1.8	)
State apportionment adjustment	(0.5	)	7.7		—
Other, net	(0.8	)	0.4		(0.9	)
Effective tax rate	(17.9	)%	18.4	%	(63.8	)%

Schedule of Deferred Tax Assets and Liabilities

These temporary differences as of December 31, 2012 and 2011 were as follows:

	December 31, 2012			December 31, 2011
Deferred tax assets:
Capital research and development expenditures	$	4,790		$	7,334
Accrued liabilities	6,794			5,112
Impairment of investment in other companies	3,890			5,821
Inventory	7,443			6,220
Net operating loss carryforwards	33,029			50,155
Research and development, and other credits	19,411			18,404
Stock-based compensation	21,236			14,466
Other	12,544			12,008
Gross deferred tax assets	109,137			119,520
Valuation allowance	(14,518		)	(11,522		)
Total deferred tax assets	94,619			107,998
Deferred tax liabilities:
Fixed assets	(24,904		)	(47,184		)
Total deferred tax liabilities	(24,904		)	(47,184		)
Total deferred tax assets, net	$	69,715		$	60,814

Schedule of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of gross unrecognized tax benefits for 2012 and 2011, which includes amounts recorded in income taxes payable as well as amounts not recorded in the Company's deferred tax assets and excludes interest and penalties, is as follows:

Balance December 31, 2010	$	6,271
Additions	11,442
Expiration of statute of limitations	(7,332		)
Balance December 31, 2011	$	10,381
Reductions	(3,285		)
Additions	2,793
Balance December 31, 2012	$	9,889