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Commitments and Contingencies (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2013	$ 6,295
2014	2,706
2015	2,072
2016	1,782
2017	1,771
Thereafter	9,254
Total future minimum lease payments due	$ 23,880

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- Definition

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

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