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Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2012

Intangible Assets

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

		Amortization				Amount
		Period				2012			2011
Tradename		3 and 10 years				$	23,586		$	18,791
Non-compete agreements		2 to 5 years				4,130			4,695
Customer relationships		5 to 15 years				24,212			8,181
Backlog		0.75 years				50			354
				Total		$	51,978		$	32,021

Schedule of estimated amortization expense for intangible assets

For the Years Ending December 31,		Estimated Intangible Amortization Expense
2013		$	7,020
2014		6,986
2015		5,834
2016		5,330
2017		5,318
Thereafter		21,490
		$	51,978