Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Assets under Capital Lease (Details)

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Commitments and Contingencies - Assets under Capital Lease (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]    
Software $ 1,977us-gaap_CapitalLeasedAssetsGross $ 1,977us-gaap_CapitalLeasedAssetsGross
Less: Accumulated amortization (1,252)us-gaap_CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation (1,110)us-gaap_CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
Assets under capital lease, net $ 725us-gaap_CapitalLeasesBalanceSheetAssetsByMajorClassNet $ 867us-gaap_CapitalLeasesBalanceSheetAssetsByMajorClassNet