Condensed Consolidated Balance Sheets (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Assets
Cash and cash equivalents	$ 340,553	$ 426,732
Short-term investments	119,806	78,439
Accounts receivable, net	69,368	43,879
Inventory	64,387	54,388
Prepaid expenses and other current assets	12,648	13,959
Prepaid income taxes	3,606	2,000
Deferred income taxes	10,066	13,744
Total current assets	620,434	633,141
Intangible assets, net	595,321	619,712
Property, equipment and building improvements, net	12,597	11,468
Goodwill	6,290	6,228
Debt issue costs, net	3,723	2,397
Deferred income taxes	11,659	4,252
Other assets	4,724	10,376
Total assets	1,254,748	1,287,574
Liabilities and Stockholders' Equity
Accounts payable	12,673	10,215
Contingent consideration		10,973
Accrued expenses and other current liabilities	72,713	48,990
Income taxes payable	3,469	1,944
Total current liabilities	88,855	72,122
Other non-current liabilities	2,066	2,463
Deferred tax liability	166,889	176,111
Long-term debt	151,456	145,743
Total liabilities	409,266	396,439
Stockholders' equity:
Preferred stock, par value $0.001 per share. 5,000,000 shares authorized; Series A convertible participating preferred stock; no shares issued and outstanding
Common stock, par value $0.002 per share. 175,000,000 shares authorized; issued and outstanding 70,542,125 shares at September 30, 2011 and 78,141,491 shares at December 31, 2010	157	156
Treasury shares, at cost. 8,151,583 shares at September 30, 2011 and 0 shares at December 31, 2010	(148,884)
Additional paid-in capital	733,761	717,375
Accumulated other comprehensive loss	(895)	(258)
Retained earnings	261,343	173,862
Total stockholders' equity	845,482	891,135
Total liabilities and stockholders' equity	$ 1,254,748	$ 1,287,574