Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2011

Intangible Assets

Components of Finite-Lived Intangible Assets

	June 30, 2011					December 31, 2010
	Gross					Gross					Estimated
	Book		Accumulated			Book		Accumulated			Useful Life
	Value		Amortization			Value		Amortization			(Years)
Customer relationships	$	83,212	$	(37,168	)	$	37,028	$	(30,283	)		4-7
Database		492		(410	)		13,292		(12,421	)		3-6
Trade names		11,594		(6,806	)		10,601		(6,135	)		2-10
Technology		55,540		(22,024	)		27,543		(16,991	)		1-5
Non-compete agreements		6,569		(1,733	)		1,389		(860	)		4-5
State DMV relationships		6,190		(430	)		—		—			6
Total	$	163,597	$	(68,571	)	$	89,853	$	(66,690	)

Amortization Expense Related to Intangibles

	Three Months Ended June 30,				Six Months Ended June 30,
	2011		2010		2011		2010
Intangible amortization expense	$	7,708	$	4,929	$	14,568	$	10,163

Estimated Future Amortization Expense Related to Intangible Assets

Remainder of 2011	$	13,676
2012		23,317
2013		20,071
2014		16,146
2015		13,271
2016		6,232
Thereafter		2,313
Total	$	95,026