Franchise Rights and Other Identifiable Intangibles Narrative (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Intangible Assets [Line Items]
Amortization expense	$ 9,056,000	$ 7,691,000	$ 7,497,000
Franchise Rights [Member]
Schedule of Intangible Assets [Line Items]
Amortization expense	3,500,000	3,700,000	3,600,000
Finite-Lived Intangible Assets, Accumulated Amortization	76,400,000	74,000,000
Franchise Rights [Member] | Minimum [Member]
Schedule of Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	5 years
Franchise Rights [Member] | Maximum [Member]
Schedule of Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	25 years
Trademarks [Member]
Schedule of Intangible Assets [Line Items]
Amortization expense	500,000	5,000,000	5,000,000
Finite-Lived Intangible Assets, Accumulated Amortization	7,500,000	6,900,000
Trademarks [Member]
Schedule of Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	$ 1,000,000