Goodwill and Intangibles (Tables)

12 Months Ended

Dec. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Change in Carrying Amount of Goodwill

The change in carrying amount of goodwill was as follows:

	Goodwill (Gross)		Accumulated Impairment Losses			Goodwill (Net)
January 1, 2013	$	119,150	$	(70,004	)	$	49,146
Business combinations		182		—			182
December 31, 2013		119,332		(70,004	)		49,328
Business combinations		4,065		—			4,065
December 31, 2014	$	123,397	$	(70,004	)	$	53,393

Schedule of Gross Carrying Amount and Accumulated Amortization

The following table provides the gross carrying amount and accumulated amortization for each major class of intangibles:

	As of December 31, 2014						As of December 31, 2013
	Gross Carrying Amount		Accumulated Amortization		Net Book Value		Gross Carrying Amount		Accumulated Amortization		Net Book Value
Amortized intangibles:
Customer relationships	$	26,119	$	16,151	$	9,968	$	21,412	$	14,403	$	7,009
Covenants not-to-compete		883		202		681		356		160		196
Trademarks and tradenames		13,681		6,612		7,069		11,882		5,687		6,195
	$	40,683	$	22,965	$	17,718	$	33,650	$	20,250	$	13,400

Schedule of Estimated Aggregate Annual Amortization

 Remaining estimated aggregate annual amortization expense is as follows:

2015	$	3,066
2016		2,707
2017		2,117
2018		1,907
2019		1,612
Thereafter		6,309