Intangible Franchise Rights (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Intangible Franchise Rights [Roll Forward]
Intangible Franchise Rights, Beginning Balance	$ 303,947	$ 301,505
Additions through acquisitions	49,432	62,612
Indefinite-lived Intangible Assets, Purchase Accounting Adjustments		(11,175)
Disposition of Intangible Franchise Rights	(3,188)	(12,075)
Impairment of Intangible Franchise Rights	(30,111)	(28,928)
Currency Translation	(12,492)	(7,992)
Intangible Franchise Rights, Ending Balance	307,588	303,947
Goodwill, Subsequent Recognition of Deferred Tax Asset	(23)	(69)
U.S. [Member]
Intangible Franchise Rights [Roll Forward]
Intangible Franchise Rights, Beginning Balance	257,502	216,412
Additions through acquisitions	49,432	60,122
Indefinite-lived Intangible Assets, Purchase Accounting Adjustments		(2,114)
Disposition of Intangible Franchise Rights	(3,188)	(12,075)
Impairment of Intangible Franchise Rights	(18,087)	(4,843)
Currency Translation	0	0
Intangible Franchise Rights, Ending Balance	285,659	257,502
Goodwill, Subsequent Recognition of Deferred Tax Asset	(23)	(69)
U.K. [Member]
Intangible Franchise Rights [Roll Forward]
Intangible Franchise Rights, Beginning Balance	8,157	8,659
Additions through acquisitions	0	0
Indefinite-lived Intangible Assets, Purchase Accounting Adjustments		0
Disposition of Intangible Franchise Rights	0	0
Impairment of Intangible Franchise Rights	0	0
Currency Translation	(384)	(502)
Intangible Franchise Rights, Ending Balance	7,773	8,157
Goodwill, Subsequent Recognition of Deferred Tax Asset	0	0
Brazil [Member]
Intangible Franchise Rights [Roll Forward]
Intangible Franchise Rights, Beginning Balance	38,288	76,434
Additions through acquisitions	0	2,490
Indefinite-lived Intangible Assets, Purchase Accounting Adjustments		(9,061)
Disposition of Intangible Franchise Rights	0	0
Impairment of Intangible Franchise Rights	(12,024)	(24,085)
Currency Translation	(12,108)	(7,490)
Intangible Franchise Rights, Ending Balance	14,156	38,288
Goodwill, Subsequent Recognition of Deferred Tax Asset	$ 0	$ 0