Goodwill And Intangible Assets (Summary Of The Intangible Assets Subject To Amortization) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 31,800,000	$ 31,827,000
Less: Accumulated amortization	20,776,000	20,341,000
Total, net	11,024,000	11,486,000
Beneficial Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	24,097,000	24,150,000
Less: Accumulated amortization	16,305,000	15,989,000
Total, net	7,792,000	8,161,000
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	7,254,000	7,254,000
Less: Accumulated amortization	4,022,000	3,929,000
Total, net	3,232,000	3,325,000
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	449,000	423,000
Less: Accumulated amortization	$ 449,000	$ 423,000