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Leases - Future Minimum Lease Payments Due Under Operating Leases (Detail)
$ in Thousands
Dec. 31, 2015
USD ($)
Leases [Abstract]  
2016 $ 4,771
2017 4,192
2018 3,207
2019 1,918
2020 1,687
Thereafter 3,047
Total Operating Lease $ 18,822