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AMORTIZATION OF INTANGIBLE ASSETS Estimated Future Intangible Amortization Expense (Detail)
$ in Thousands
Mar. 31, 2018
USD ($)
Expected Amortization Expense [Line Items]  
Remainder of 2017 $ 8,179
2018 9,226
2019 7,415
2020 5,973
2021 4,634
2023 and thereafter 17,677
Total $ 53,104