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INTANGIBLE ASSETS - Summary of Intangible Amortization Expense Estimated (Detail)
$ in Thousands
Mar. 31, 2019
USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]  
Fiscal year ending December 31, 2019 $ 4,200
Fiscal year ending December 31, 2020 4,997
Fiscal year ending December 31, 2021 4,094
Fiscal year ending December 31, 2022 3,534
Fiscal year ending December 31, 2023 3,231
Thereafter $ 13,310