CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (Parenthetical) (USD $) In Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010		Jun. 30, 2011		Jun. 30, 2010
Components of net revenue:
License fees	$ 16,817		$ 16,644		$ 35,232		$ 40,816
Service revenue	66,935		72,240		135,821		176,668
Revenue	83,752	[1]	88,884	[1]	171,053	[1]	217,484	[1]
Components of cost of revenue:
License fees	4,800		5,668		10,046		13,217
Service revenue	25,866		23,481		52,686		65,091
Cost of revenue	$ 30,666	[2]	$ 29,149	[2]	$ 62,732	[2]	$ 78,308	[2]

[1] Components of net revenue: License fees $ 16,817 $ 16,644 $ 35,232 $ 40,816 Service revenue 66,935 72,240 135,821 176,668 $ 83,752 $ 88,884 $ 171,053 $ 217,484

[2] Components of cost of revenue: License fees $ 4,800 $ 5,668 $ 10,046 $ 13,217 Service revenue 25,866 23,481 52,686 65,091 $ 30,666 $ 29,149 $ 62,732 $ 78,308