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Amortization Expense for Amortized Intangible Assets (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Finite-Lived Intangible Liabilities [Line Items]    
2020 $ 15,288  
2021 14,813  
2022 14,811  
2023 14,715  
2024 14,273  
2025 and thereafter 137,952  
Total $ 211,852 $ 134,738