Leases (Schedule of Future Minimum Lease Payments for Capital Leases) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Leases [Abstract]
Capital Leases, Future Minimum Payments Due, Current	$ 3,036
Capital Leases, Future Minimum Payments Due In Two Years	3,036
Capital Leases, Future Minimum Payments Due In Three Years	3,036
Capital Leases, Future Minimum Payments Due In Four Years	3,036
Capital Leases, Future Minimum Payments Due In Five Years	3,036
Capital Leases, Future Minimum Payments Due Thereafter	6,931
Capital Leases, Future Minimum Payments Due	22,111
Less Amount Representing Interest (At 9.3%-10.4%)	(6,449)
Present Value Of Net Minimum Future Capital Lease Payments	15,662
Less Principal Portion Of Current Installments	(1,558)	(1,314)
Long-term Portion Of Obligations Under Capital Leases	$ 14,104	$ 14,363