Commitments and Contingencies (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Future minimum cash lease commitments under all non-cancelable leases in effect for continuing operations
Capital Operating Leases, 2012	$ 837
Capital Operating Leases, 2013	735
Capital Operating Leases, 2014	623
Capital Operating Leases, 2015	364
Capital Operating Leases, 2016	0
Capital Operating Leases, Years thereafter	0
Capital Operating Leases, Total minimum lease payments	2,559
Capital Operating Leases, Less amount representing interest	(160)
Capital Operating Leases, Total present value of minimum payments	2,399
Capital Operating Leases, Less current portion of obligations	(755)	(178)
Capital Operating Leases, Long-term obligations	1,644	306
Operating Leases, 2012	7,036
Operating Leases, 2013	6,332
Operating Leases, 2014	4,314
Operating Leases, 2015	4,298
Operating Leases, 2016	4,274
Operating Leases, Years thereafter	617,949
Operating Leases, Total minimum lease payments	$ 644,203

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid within one year (or one operating cycle, if longer) of the balance sheet date.