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Commitments and Contingencies - Future Minimum Commitments under Non-Cancelable Operating Leases with Initial or Remaining Terms of One Year or More (Detail)
$ in Thousands
Dec. 31, 2014
USD ($)
Leases [Abstract]  
2015 $ 3,419
2016 2,510
2017 1,856
2018 1,323
2019 859
Thereafter 1,180
Future minimum lease payments $ 11,147