Commitments and Contingencies (Leases) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Leases [Abstract]
Operating Leases, Rent Expense	$ 2,655	$ 3,137	$ 3,102
Repayments of Long-term Capital Lease Obligations	1,627	1,627	0
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	2,457
Operating Leases, Future Minimum Payments, Due in Two Years	1,186
Operating Leases, Future Minimum Payments, Due in Three Years	747
Operating Leases, Future Minimum Payments, Due in Four Years	642
Operating Leases, Future Minimum Payments, Due in Five Years	266
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
Capital Leases, Future Minimum Payments Due, Next Twelve Months	1,422
Capital Leases, Future Minimum Payments Due in Two Years	808
Capital Leases, Future Minimum Payments Due in Three Years	808
Capital Leases, Future Minimum Payments Due in Four Years	808
Capital Leases, Future Minimum Payments Due in Five Years	808
Operating Leases, Future Minimum Payments Due	5,739
Capital Leases, Future Minimum Payments Due	$ 7,484

Amount of minimum lease payments for capital leases.

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The cash outflow for the obligation for a lease meeting the criteria for capitalization (with maturities exceeding one year or beyond the operating cycle of the entity, if longer).

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