Goodwill And Intangible Assets (Summary Of The Intangible Assets Subject To Amortization) (Details) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 31,958,000	$ 31,996,000
Less: Accumulated amortization	17,990,000	16,335,000
Total, net	13,968,000	15,661,000
Beneficial Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	24,248,000	24,284,000
Less: Accumulated amortization	14,132,000	12,873,000
Total, net	10,116,000	11,411,000
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	7,254,000	7,254,000
Less: Accumulated amortization	3,402,000	3,059,000
Total, net	3,852,000	4,195,000
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	456,000	458,000
Less: Accumulated amortization	456,000	403,000
Total, net		$ 55,000