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Commitments and Contingencies - Future Estimated Payments Related to Data Processing and Communication Charges (Detail)
$ in Thousands
Dec. 31, 2015
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2016 $ 11,360
2017 11,743
2018 12,123
2019 12,527
2020 12,951
Total $ 60,704