Geographic Information (Tables)

9 Months Ended

Sep. 30, 2011

Geographic Information [Abstract]

Schedule Of Revenue By Geographic Area

	Three Months Ended				Nine Months Ended
(in thousands)	September 30, 2011		September 30, 2010		September 30, 2011		September 30, 2010
United States	$	53,597	$	44,594	$	151,107	$	134,368
Japan		29,804		23,058		82,232		68,409
Germany		18,521		14,817		52,486		44,482
Canada		3,327		2,047		8,816		6,944
Other European		39,657		32,522		119,719		97,704
Other international		28,029		22,805		78,880		61,756
Total revenue	$	172,935	$	139,843	$	493,240	$	413,663

Property And Equipment By Geographic Area

(in thousands)	September 30, 2011		December 31, 2010
United States	$	27,158	$	25,156
India		3,073		2,846
United Kingdom		2,680		2,316
Germany		1,777		1,709
Japan		1,483		1,493
Canada		947		1,014
Other European		2,165		1,959
Other international		968		428
Total property and equipment, net	$	40,251	$	36,921