Goodwill and Identifiable Intangible Assets, Net (Tables)

12 Months Ended

Dec. 31, 2016

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,
	2016		2015
Balance at beginning of year	$	143,874	$	140,341
Additions (See Note 4)		5,334		3,533
Balance at end of year	$	149,208	$	143,874

Schedule of components of identifiable intangible assets

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

	Estimated	2016				2015
	Useful Lives	Gross Book		Accumulated		Gross Book		Accumulated
	in Years	Value		Amortization		Value		Amortization
Customer relationships	1 - 15	$	57,230	$	(36,758)	$	53,334	$	(31,960)
Backlog	1 - 2		3,600		(3,433)		1,600		(1,412)
Noncompete agreements	2 - 7		2,890		(2,890)		2,890		(2,890)
Tradenames	2 - 25		31,640		(9,844)		27,995		(8,478)
Total		$	95,360	$	(52,925)	$	85,819	$	(44,740)

Schedule of future amortization expense of identifiable intangible assets

At December 31, 2016, future amortization expense of identifiable intangible assets is as follows (in thousands):

Year ended December 31—
2017	$	5,702
2018		4,861
2019		4,246
2020		3,751
2021		3,300
Thereafter		20,575
Total	$	42,435