CONDENSED CONSOLIDATED BALANCE SHEET (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Current assets:
Cash and cash equivalents	$ 118,083	$ 179,915
Accounts receivable, net	11,110	12,997
Inventories	3,884	3,726
Deferred tax asset, current portion	598	598
Prepaid expenses and other current assets	43,320	13,870
Total current assets	176,995	211,106
Property and equipment, net	66,361	54,123
Intangible assets, net	114,588	95,016
Goodwill	342,046	340,408
Deferred tax asset, net of current portion	4,075	3,785
Other assets	5,186	5,448
Total assets	709,251	709,886
Current liabilities:
Accounts payable	13,356	9,470
Accrued liabilities	31,933	59,271
Deferred revenue	13,584	12,106
Total current liabilities	58,873	80,847
Deferred tax liability	12,403	13,948
Other liabilities	5,736	6,094
Total liabilities	77,012	100,889
Commitments and contingencies (Note 5)
Stockholders' equity
Common stock, $0.0001 par value; 100,000 shares authorized; 35,958 and 34,839 shares issued and outstanding on June 30, 2012 and December 31, 2011, respectively	4	4
Additional paid-in capital	631,859	589,067
Accumulated earnings	376	19,926
Total stockholders' equity	632,239	608,997
Total liabilities and stockholders' equity	$ 709,251	$ 709,886