Business Combinations (Tables)

12 Months Ended

Dec. 31, 2016

Business Combinations [Abstract]

Summary of Estimated Fair Value of Assets Acquired and Liabilities Assumed

The estimated fair values of the assets acquired and liabilities assumed for the acquisitions, as well as total purchase prices and cash paid, approximated the following (in thousands):

	2016
	Alpine			East Coast			Other			Total
Estimated fair values:
Cash	$	—		$	2,181		$	—		$	2,181
Accounts receivable		3,959			3,093			2,502			9,554
Inventories		700			332			1,183			2,215
Other current assets		—			1			29			30
Property and equipment		656			666			1,615			2,937
Intangibles		12,800			6,400			11,067			30,267
Goodwill		6,642			4,348			5,928			16,918
Other non-current assets		—			116			345			461
Accounts payable and other current liabilities		(2,046	)		(948	)		(1,617	)		(4,611	)
Fair value of assets acquired		22,711			16,189			21,052			59,952
Less seller obligations		1,560			600			2,299			4,459
Cash paid	$	21,151		$	15,589		$	18,753		$	55,493

	2015
	BDI			CQ			Layman			Eastern			Other			Total
Estimated fair values:
Cash	$	661		$	100		$	—		$	165		$	—		$	926
Accounts receivable		4,735			1,423			1,245			2,768			4,093			14,264
Inventories		980			152			267			335			720			2,454
Other current assets		368			39			—			109			32			548
Property and equipment		1,006			190			733			1,364			1,574			4,867
Intangibles		21,280			4,350			5,330			13,871			10,534			55,365
Goodwill		16,213			3,035			3,143			9,904			4,809			37,104
Other non-current assets		3,736			—			—			322			60			4,118
Accounts payable and other current liabilities		(3,303	)		(1,539	)		(1,030	)		(1,681	)		(2,220	)		(9,773	)
Deferred income tax liabilities		(5,495	)		—			—			—			(825	)		(6,320	)
Long-term debt		—			—			—			(82	)		—			(82	)
Other long-term liabilities		(3,736	)		(238	)		—			(1	)		—			(3,975	)
Fair value of assets acquired		36,445			7,512			9,688			27,074			18,777			99,496
Gain on bargain purchase		—			—			—			—			(1,116	)		(1,116	)
Total purchase price		36,445			7,512			9,688			27,074			17,661			98,380
Less seller obligations		5,765			2,319			600			2,875			1,621			13,180
Cash paid	$	30,680		$	5,193		$	9,088		$	24,199		$	16,040		$	85,200

	2014
Estimated fair values:
Cash	$	53
Accounts receivable		4,666
Inventories		1,315
Other current assets		195
Property and equipment		1,576
Intangibles		7,111
Goodwill		4,065
Accounts payable and other current liabilities		(2,470	)
Deferred income tax liabilities		(515	)
Other long-term liabilities		(35	)
Fair value of assets acquired		15,961
Less seller obligations		3,544
Cash paid	$	12,417

Estimates of Acquired Intangible Assets

Estimates of acquired intangible assets related to the acquisitions are as follows (dollars in thousands):

	2016				2015				2014
Acquired intangibles assets	Estimated Fair Value		Weighted Average Estimated Useful Life (yrs)		Estimated Fair Value		Weighted Average Estimated Useful Life (yrs)		Estimated Fair Value		Weighted Average Estimated Useful Life (yrs)
Customer relationships	$	18,511		9	$	36,129		8	$	4,708		14
Trademarks and trade names		8,983		15		14,567		15		1,799		15
Non-competition agreements		2,773		5		4,668		5		604		5

Pro Forma Results of Operations

The unaudited pro forma information has been prepared as if the 2016 acquisitions had taken place on January 1, 2015, the 2015 acquisitions had taken place on January 1, 2014 and the 2014 acquisitions had taken place on January 1, 2013. The unaudited pro forma information is not necessarily indicative of the results that we would have achieved had the transactions actually taken place on January 1, 2015 and 2014 and the unaudited pro forma information does not purport to be indicative of future financial operating results (in thousands, except for per share data).

	Pro Forma for the years ended December 31,
	2016		2015		2014
Net revenue	$	896,853	$	786,144	$	637,434
Net income	$	39,752	$	29,463	$	15,219
Accretion charges on Series A Redeemable Preferred Stock		—		—		(19,897	)
Net income (loss) attributable to common stockholders	$	39,752	$	29,463	$	(4,678	)
Net income (loss) per share attributable to common stockholders (basic and diluted)	$	1.27	$	0.94	$	(0.16	)