Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2016

Goodwill And Intangible Assets Disclosure [Abstract]

Components of Goodwill

Goodwill consisted of the following:

	Amount
Balance at January 1, 2016	$	112,425
Additions through acquisitions		1,374
Other measurement period adjustments		203
Balance at September 30, 2016	$	114,002

Components of Intangible Assets

The Company’s intangible assets consisted of the following:

		September 30, 2016							December 31, 2015
	Useful life			Accumulated							Accumulated
	(years)	Cost		amortization			Net		Cost		amortization			Net
Customer lists	5-14	$	91,757	$	(17,837	)	$	73,920	$	90,212	$	(11,319	)	$	78,893
Patents and    technology	5-10		16,557		(5,513	)		11,044		16,390		(4,090	)		12,300
Trade names and    trademarks	1-2		2,884		(2,204	)		680		2,885		(906	)		1,979
		$	111,198	$	(25,554	)	$	85,644	$	109,487	$	(16,315	)	$	93,172

Estimated Annual Amortization Expense for Intangible Assets

Estimated annual amortization expense for intangible assets subsequent to September 30, 2016 is as follows:

	Amount
2016 (remaining)	$	3,100
2017		10,760
2018		10,507
2019		10,471
2020		10,196
2021		9,723
Thereafter		30,887
	$	85,644