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Commitments and Contingencies (Details) - Jun. 30, 2015
$ in Thousands
USD ($)
item
Commitments and Contingencies  
Number of previous claims experienced | item 0
Future annual minimum lease commitments under operating leases  
Remainder of 2015 $ 3,704
2016 8,059
2017 7,143
2018 6,727
2019 6,628
Thereafter 23,238
Total $ 55,499