Segment and Geographic Information (Tables)

9 Months Ended

Sep. 30, 2011

Segment Reporting [Abstract]

Reconciliation of Revenue from Segments to Consolidated [Table Text Block]

The geographic segment information provided below is classified based on the major geographic regions in which the Company operates.

	Three Months Ended September 30,								Nine Months Ended September 30,
	2011				2010				2011				2010
	(in thousands)								(in thousands)
Net revenue:
United States	$	111,561	92.4	%	$	100,234	94.8	%	$	328,849	93.3	%	$	301,065	94.7	%
Europe	6,060		5.0	%	4,018		3.8	%	18,429		5.2	%	13,613		4.3	%
Rest of world	3,152		2.6	%	1,491		1.4	%	5,223		1.5	%	3,288		1.0	%
Total net revenue	$	120,773			$	105,743			$	352,501			$	317,966

Reconciliation of Assets from Segment to Consolidated [Table Text Block]

	September 30, 2011				December 31, 2010
	(in thousands)
Long-lived assets:
United States	$	118,451	99.0	%	$	117,095	98.8	%
Europe	1,121		0.9	%	1,213		1.0	%
Rest of world	63		0.1	%	220		0.2	%
Total long-lived assets	$	119,635			$	118,528