Leases (Future Minimum Lease Payments For Operating Leases And Capital Leases) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Leases [Abstract]
2013	$ 17,441
2014	19,812
2015	11,683
2016	0
2017	0
Thereafter (through 2027)	0
Capital Leases, Total minimum lease payments	48,936
Amount representing interest	(2,573)
Present value of minimum lease payments	46,363
Current maturities of obligations under capital leases	(16,008)
Long-term obligations under capital leases	30,355	51,902
2013	80,022
2014	57,100
2015	41,679
2016	34,554
2017	24,368
Thereafter (through 2027)	39,165
Operating Leases, Total minimum lease payments	$ 276,888