Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2013

Intangible Assets

Summary of intangible asset categories, amounts and the average amortization periods

	Amortization	March 31,		December 31,
	Period	2013		2012
Tradename	3 to 10 years	$	22,828	$	23,586
Non-compete agreements	2 to 5 years	$	4,023	$	4,130
Customer relationships	5 to 15 years	$	24,133	$	24,212
Backlog	0.75 years	$	—	$	50
Total		$	50,984	$	51,978

Schedule of estimated amortization expense for intangible assets

For the Years Ending December 31,	Estimated Intangible Amortization Expense
2013 (remaining nine months)	$	4,632
2014	7,316
2015	7,046
2016	6,126
2017	5,769
Thereafter	20,095
	$	50,984