Goodwill and Other Intangible Assets, (Tables)

9 Months Ended

Sep. 30, 2011

Goodwill and Other Intangible Assets

Schedule of other intangible assets, net

	Goodwill, Gross		Accumulated Impairment			Goodwill, Net
Balance at December 31, 2010	$	21,932	$	(15,425	)	$	6,507
Additions through acquisitions	109,170		—			109,170
Impairment	—		(406		)	(406		)
Balance at September 30, 2011	$	131,102	$	(15,831	)	$	115,271

Other intangible assets, net:
Balance at December 31, 2010	$	18,411
Purchases of intangible assets	87,255
Amortization expense	(7,596		)
Impairment	(1,420		)
Balance at September 30, 2011	$	96,650