Goodwill and Identifiable Intangible Assets, Net (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill and Identifiable Intangible Assets, Net

Schedule of changes in the carrying amount of goodwill

        The changes in the carrying amount of goodwill are as follows (in thousands):

	December 31,
	2015		2014
Balance at beginning of year	$	140,341	$	114,588
Additions (See Note 4)		3,533		26,480
Impairment adjustment		—		(727	)
Balance at end of year	$	143,874	$	140,341

Schedule of components of identifiable intangible assets

        Identifiable intangible assets consist of the following (dollars in thousands):

		December 31,
		2015					2014
	Estimated Useful Lives in Years	Gross Book Value		Accumulated Amortization			Gross Book Value		Accumulated Amortization
Customer relationships	2 - 15	$	53,334	$	(31,960	)	$	50,440	$	(26,287	)
Backlog	1 - 2		1,600		(1,412	)		1,600		(829	)
Noncompete agreements	2 - 7		2,890		(2,890	)		2,890		(2,868	)
Tradenames	2 - 25		27,995		(8,478	)		27,995		(7,275	)
Total		$	85,819	$	(44,740	)	$	82,925	$	(37,259	)

Schedule of future amortization expense of identifiable intangible assets

        At December 31, 2015, future amortization expense of identifiable intangible assets is as follows (in thousands):

Year ended December 31—
2016	$	5,956
2017		4,640
2018		3,850
2019		3,430
2020		3,102
Thereafter		20,101
Total	$	41,079