Goodwill and Other Long-Lived Assets - Other Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 309,443	$ 295,549
Accumulated Amortization	(106,344)	(87,012)
Total	203,099	208,537
Trademarks
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	30,752	30,144
Accumulated Amortization	(10,291)	(7,713)
Total	20,461	22,431
Non-contractual customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	232,789	218,847
Accumulated Amortization	(78,875)	(62,331)
Total	153,914	156,516
Covenants not-to-compete
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	26,276	23,990
Accumulated Amortization	(9,847)	(7,580)
Total	16,429	16,410
Favorable lease assets
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	6,509	9,451
Accumulated Amortization	(3,112)	(5,855)
Total	3,397	3,596
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,377	1,377
Accumulated Amortization	(893)	(795)
Total	484	582
Client lists
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	10	10
Accumulated Amortization	(2)	(1)
Total	8	9
Franchise rights
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	11,730	11,730
Accumulated Amortization	(3,324)	(2,737)
Total	$ 8,406	$ 8,993