Goodwill and Other Long-Lived Assets (Details 1) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 144,542	$ 145,156
Accumulated Amortization	(65,931)	(58,485)
Total intangible assets	78,611	86,671
Noncontractual customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	98,904	109,842
Accumulated Amortization	(50,033)	(41,895)
Total intangible assets	48,871	67,947
Covenants not-to-compete [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	9,170	8,843
Accumulated Amortization	(4,383)	(4,661)
Total intangible assets	4,787	4,182
Favorable lease asset [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	9,591	7,458
Accumulated Amortization	(4,844)	(4,373)
Total intangible assets	4,747	3,085
Contract [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	460	608
Accumulated Amortization	(363)	(305)
Total intangible assets	97	303
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,913	5,240
Accumulated Amortization	(1,613)	(3,015)
Total intangible assets	1,300	2,225
Client lists [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	0	50
Accumulated Amortization	0	(42)
Total intangible assets	0	8
Franchise rights [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	10,400	0
Accumulated Amortization	(87)	0
Total intangible assets	10,313	0
Trademarks [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	13,104	13,115
Accumulated Amortization	(4,608)	(4,194)
Total intangible assets	$ 8,496	$ 8,921