Goodwill and Other Assets (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items]
Written off goodwill related to sale	$ 217,000
Goodwill	1,500,000	1,700,000
Useful life of intangible assets	12 months
Amortization of intangible assets	3,900,000	4,900,000	8,000,000
Gross deferred tax assets	6,900,000	6,900,000	6,200,000
Amortization for deferred financing costs	2,000,000	2,100,000	2,000,000
Lease Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization period	12 months
Number of real estate properties acquired	5	4
Intangible assets acquired	3,500,000	4,400,000
Commercial Lease [Member]
Finite-Lived Intangible Assets [Line Items]
Useful life of intangible assets	60 months
Intangible assets acquired		$ 1,900,000