Goodwill And Intangible Assets (Summary Of The Intangible Assets Subject To Amortization) (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 34,711	$ 31,827
Less: Accumulated amortization	23,939	20,341
Total, net	10,772	11,486
Beneficial Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	26,803	24,150
Less: Accumulated amortization	19,378	15,989
Total, net	7,425	8,161
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	7,254	7,254
Less: Accumulated amortization	4,115	3,929
Total, net	3,139	3,325
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	654	423
Less: Accumulated amortization	446	$ 423
Total, net	$ 208