Commitments And Contingencies (Leases) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jan. 01, 2014	Mar. 31, 2007
Commitments and Contingencies Disclosure [Abstract]
Operating Leases, 2014	$ 15,110,000
Operating Leases, 2013	10,789,000
Operating Leases, 2014	8,397,000
Operating Leases, 2015	6,265,000
Operating Leases, 2016	5,020,000
Operating Leases, Thereafter	3,744,000
Operating Leases, Future Minimum Payments Due, Total	49,325,000
Minimum Sublease Income, 2014	183,000
Minimum Sublease Income, 2015	0
Minimum Sublease Income, 2016	0
Minimum Sublease Income, 2017	0
Minimum Sublease Income, 2018	0
Minimum Sublease Income, Thereafter	0
Minimum Sublease Income, Total minimum lease payments	183,000
Operating Leases Net, 2014	14,927,000
Operating Leases Net, 2015	10,789,000
Operating Leases Net, 2016	8,397,000
Operating Leases Net, 2017	6,265,000
Operating Leases Net, 2018	5,020,000
Operating Leases Net, Thereafter	3,744,000
Operating Leases Net, Total minimum lease payments	49,142,000
Rental expense	26,900,000	26,700,000	27,100,000
Airplane Operating Lease Period Years					7 years
Airplane, fair value				9,500,000	22,100,000
Residual value guarantee liability	$ 9,500,000			$ 7,800,000	$ 14,100,000