Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2012

Intangible Assets [Abstract]

Summary of Finite-lived intangible assets

	Adjusted cost as of		Accumulated amortization as of			Net carrying amount as of
	June 30, 2012		June 30, 2012			June 30, 2012
Developed technology	$	17,881	$	(7,875	)	$	10,006
Customer relationships		9,561		(8,365	)		1,196
Brand names		1,927		(1,549	)		378
Patented technology		2,252		(1,889	)		363
In-process research and development		330		(52	)		278
Trademark		80		(72	)		8
Total	$	32,031	$	(19,802	)	$	12,229

	Adjusted cost as of December 31, 2011		Accumulated amortization as of December 31, 2011			Net carrying amount as of December 31, 2011
Developed technology	$	17,881	$	(6,254	)	$	11,627
Customer relationships		9,561		(7,961	)		1,600
Brand names		1,927		(1,498	)		429
Patented technology		2,252		(1,856	)		396
In-process research and development		330		—			330
Trademark		80		(68	)		12
Total	$	32,031	$	(17,637	)	$	14,394