Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2015

Goodwill And Intangible Assets Disclosure [Abstract]

Components of Goodwill

Goodwill consisted of the following:

	2015		2014
Balance at January 1,	$	39,870	$	20,335
Additions through acquisitions		72,528		19,952
Measurement period adjustments		27		(417	)
Balance at December 31,	$	112,425	$	39,870

Components of Intangible Assets

The Company’s intangible assets consisted of the following:

		December 31, 2015							December 31, 2014
	Useful life (years)	Cost		Accumulated amortization			Net		Cost		Accumulated amortization			Net
Customer lists	5 -14	$	90,212	$	(11,319	)	$	78,893	$	21,850	$	(2,939	)	$	18,911
Patents and technology	5-10		16,390		(4,090	)		12,300		8,473		(2,259	)		6,214
Trade names and trademarks	2 -10		2,885		(906	)		1,979		1,690		(481	)		1,209
		$	109,487	$	(16,315	)	$	93,172	$	32,013	$	(5,679	)	$	26,334

Estimated Annual Amortization Expense for Intangible Assets

Estimated amortization expense for intangible assets is as follows:

Years ending December 31,
2016	$	10,927
2017		10,781
2018		10,728
2019		10,691
2020		10,201
Thereafter		39,844
	$	93,172