Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 110,777	$ 102,825
Short-term marketable securities	176,608	143,449
Accounts receivable, net of allowances of $3,343 and $3,481, respectively	106,269	104,774
Inventory	147,721	136,937
Deferred tax assets, current	37,091	37,076
Income Taxes Receivable, Current	16,512	0
Prepaid expenses and other current assets	11,273	10,947
Total current assets	606,251	536,008
Property and equipment, net	128,857	128,064
Long-term marketable securities	52,209	79,829
Intangible assets, net	89,593	93,986
Goodwill	154,650	154,944
Deferred tax assets, non-current	42,874	42,863
Restricted cash and investments	123,068	119,195
Other assets	27,586	24,679
Total assets	1,225,088	1,179,568
Current liabilities:
Accounts payable and accrued liabilities	102,571	86,057
Accrued payroll and related expenses	24,219	31,095
Current Litigation Liability	30,000	0
Total current liabilities	156,790	117,152
Senior Convertible Notes	349,632	346,060
Deferred tax liabilities, non-current	2,933	2,934
Litigation liability	93,700	93,700
Other long-term liabilities	17,545	14,844
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.001 par value; 5,000 shares authorized, none outstanding	0	0
Common stock, $0.001 par value; 120,000 shares authorized at March 31, 2014 and December 31, 2013, 46,540 and 44,943 issued and outstanding at March 31, 2014 and December 31, 2013, respectively	47	45
Additional paid-in capital	786,285	769,203
Accumulated other comprehensive loss	(2,179)	(3,238)
Accumulated deficit	(188,494)	(170,218)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	604,488	604,878
Noncontrolling Interest in Variable Interest Entity	8,829	9,086
Total stockholders' equity	595,659	595,792
Total liabilities and stockholders' equity	$ 1,225,088	$ 1,179,568