CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME / (LOSS) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Net income (loss)	$ (7,176)	$ 10,599	$ 285	$ 20,453
Other comprehensive income, net of tax:
Unrealized gain (loss) on marketable securities	(129)	0	162	0
Foreign currency translation adjustments	(124)	23	(67)	72
Total other comprehensive income (loss)	(253)	23	95	72
Total comprehensive income (loss)	$ (7,429)	$ 10,622	$ 380	$ 20,525