Intangible Assets

9 Months Ended

Sep. 30, 2013

Note 9—Intangible Assets

At September 30, 2013 and December 31, 2012, intangible assets totaled $48,002 and $51,978, respectively, net of amortization. The September 30, 2013 balance includes the effect of the FSSI acquisition (See Note 8). The table below summarizes the intangible asset categories, amounts and the average amortization periods, which are generally on a straight-line basis, as follows:

	Amortization	September 30,		December 31,
	Period	2013		2012
Tradename	3 to 10 years	$	21,808	$	23,586
Non-compete agreements	2 to 5 years	$	2,991	$	4,130
Customer relationships	5 to 15 years	$	23,203	$	24,212
Backlog	0.75 years	$	—	$	50
Total		$	48,002	$	51,978

Amortization expense of intangible assets was $1,891 and $1,476 for the three months ended September 30, 2013 and 2012, respectively, and amortization expense for the nine months ended September 30, 2013 and 2012 was $5,576 and $4,669, respectively. Estimated future amortization expense for intangible assets is as follows:

For the Years Ending December 31,	Estimated Intangible Amortization Expense
2013 (remaining three months)	$	1,891
2014	7,454
2015	6,404
2016	6,029
2017	5,909
Thereafter	20,315
	$	48,002