CONDENSED CONSOLIDATED BALANCE SHEET (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 164,453	$ 245,088
Accounts receivable, net	10,714	13,574
Inventories	4,845	5,032
Deferred tax asset, current portion	7,713	7,713
Prepaid expenses and other current assets	44,089	15,268
Total current assets	231,814	286,675
Property and equipment, net	100,769	92,667
Intangible assets, net	116,092	122,269
Goodwill	358,050	358,349
Deferred tax asset, net of current portion	854	854
Other assets	10,873	4,310
Total assets	818,452	865,124
Current liabilities:
Accounts payable	11,993	31,503
Accrued liabilities	34,376	88,472
Deferred revenue	17,508	17,845
Total current liabilities	63,877	137,820
Deferred tax liability	27,686	24,298
Other liabilities	14,091	11,720
Total liabilities	105,654	173,838
Commitments and contingencies (Note 5)
Stockholders' equity
Common stock, $0.0001 par value; 100,000 shares authorized; 37,899 and 36,358 shares issued and outstanding on March 31, 2013 and December 31, 2012, respectively	4	4
Additional paid-in capital	688,268	652,110
Accumulated earnings	24,526	39,172
Total stockholders' equity	712,798	691,286
Total liabilities and stockholders' equity	$ 818,452	$ 865,124