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Leases (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Leases Details  
2015 $ 3,154us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent
2016 1,835us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears
2017 4us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears
2018 0us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFourYears
2019 0us-gaap_OperatingLeasesFutureMinimumPaymentsDueInFiveYears
Total minimum payments $ 4,993us-gaap_OperatingLeasesFutureMinimumPaymentsDue