Goodwill And Intangible Assets (Summary Of Intangible Assets Subject To Amortization) (Details) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 31,994,000	$ 31,932,000
Less: Accumulated amortization	19,064,000	18,492,000
Total, net	12,930,000	13,440,000
Beneficial Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	24,282,000	24,223,000
Less: Accumulated amortization	14,986,000	14,520,000
Total, net	9,296,000	9,703,000
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	7,254,000	7,254,000
Less: Accumulated amortization	3,620,000	3,517,000
Total, net	3,634,000	3,737,000
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	458,000	455,000
Less: Accumulated amortization	$ 458,000	$ 455,000