Goodwill And Intangible Assets (Summary Of Amortizable Intangible Assets) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 17,984	$ 17,971
Accumulated Amortization	(5,824)	(5,279)
Net	12,160	12,692
Deferred Financing Cost [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	14,536	14,523
Accumulated Amortization	(3,519)	(3,029)
Net	11,017	11,494
Customer And Non Compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3,448	3,448
Accumulated Amortization	(2,305)	(2,250)
Net	$ 1,143	$ 1,198