Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 106,461	$ 102,825
Short-term marketable securities	140,849	143,449
Accounts receivable, net of allowances of $4,495 and $3,481, respectively	112,572	104,774
Inventory	157,361	136,937
Deferred tax assets, current	37,105	37,076
Income Taxes Receivable, Current	21,013	0
Prepaid expenses and other current assets	11,774	10,947
Total current assets	587,135	536,008
Property and equipment, net	134,863	128,064
Long-term marketable securities	102,920	79,829
Intangible assets, net	75,312	93,986
Goodwill	154,637	154,944
Deferred tax assets, non-current	46,886	42,863
Restricted cash and investments	123,140	119,195
Other assets	29,231	24,679
Total assets	1,254,124	1,179,568
Current liabilities:
Accounts payable and accrued liabilities	102,224	86,057
Accrued payroll and related expenses	26,966	31,095
Current Litigation Liability	30,000	0
Total current liabilities	159,190	117,152
Senior Convertible Notes	353,269	346,060
Deferred tax liabilities, non-current	2,980	2,934
Litigation liability	93,700	93,700
Other long-term liabilities	16,674	14,844
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.001 par value; 5,000,000 shares authorized, none outstanding	0	0
Common stock, $0.001 par value; 120,000,000 shares authorized at June 30, 2014 and December 31, 2013, respectively, 46,941,192 and 44,943,233 issued and outstanding at June 30, 2014 and December 31, 2013, respectively	47	45
Additional paid-in capital	813,541	769,203
Accumulated other comprehensive loss	(1,299)	(3,238)
Accumulated deficit	(192,582)	(170,218)
Treasury Stock, Value	(44)	0
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	628,311	604,878
Noncontrolling Interest in Variable Interest Entity	8,648	9,086
Total stockholders' equity	619,663	595,792
Total liabilities and stockholders' equity	$ 1,254,124	$ 1,179,568