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Minimum Future Lease Payments for Non-Cancelable Leases (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Operating Leased Assets [Line Items]  
Remainder of 2013 $ 2,289
2014 8,239
2015 7,451
2016 6,870
2017 3,948
Thereafter 1,755
Total minimum lease payments $ 30,552