Goodwill and Other Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Intangible Assets [Line Items]
Weighted-average useful life	16 years
Intangible amortization expense	$ 1,140	$ 1,144
Intangible assets subject to amortization, Cost	67,231		$ 67,315
Intangible assets subject to amortization, Accumulated Amortization	(20,460)		(19,356)
Intangible assets subject to amortization, Net Book Value	46,771		47,959
Intangible assets, Cost	73,260		73,344
Intangible assets, Net Book Value	52,800		53,988
Trademarks
Intangible Assets [Line Items]
Indefinite-lived intangible assets	6,029		6,029
Customer relationships
Intangible Assets [Line Items]
Intangible assets subject to amortization, Cost	59,528		59,612
Intangible assets subject to amortization, Accumulated Amortization	(18,599)		(17,747)
Intangible assets subject to amortization, Net Book Value	$ 40,929		41,865
Customer relationships | Minimum
Intangible Assets [Line Items]
Weighted-average useful life	12 years
Customer relationships | Maximum
Intangible Assets [Line Items]
Weighted-average useful life	20 years
Technology and software
Intangible Assets [Line Items]
Intangible assets subject to amortization, Cost	$ 7,101		7,101
Intangible assets subject to amortization, Accumulated Amortization	(1,470)		(1,238)
Intangible assets subject to amortization, Net Book Value	$ 5,631		5,863
Technology and software | Minimum
Intangible Assets [Line Items]
Weighted-average useful life	7 years
Technology and software | Maximum
Intangible Assets [Line Items]
Weighted-average useful life	10 years
Non-compete agreements
Intangible Assets [Line Items]
Intangible assets subject to amortization, Cost	$ 491		491
Intangible assets subject to amortization, Accumulated Amortization	(288)		(270)
Intangible assets subject to amortization, Net Book Value	$ 203		221
Non-compete agreements | Minimum
Intangible Assets [Line Items]
Weighted-average useful life	5 years
Non-compete agreements | Maximum
Intangible Assets [Line Items]
Weighted-average useful life	8 years
Favorable leases
Intangible Assets [Line Items]
Weighted-average useful life	9 years 6 months
Intangible assets subject to amortization, Cost	$ 111		111
Intangible assets subject to amortization, Accumulated Amortization	(103)		(101)
Intangible assets subject to amortization, Net Book Value	$ 8		$ 10