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Fair Value Measurements - Summary of Financial Assets (Liabilities) at Fair Value Measured on Recurring Basis (Detail) - USD ($)
$ in Thousands
Dec. 31, 2020
Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Contingent consideration liabilities $ (2,882)  
Interest Rate Swap Contracts [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of financial liability (35) $ (43)
Contingent consideration liabilities (2,882)  
Level 2 [Member] | Interest Rate Swap Contracts [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value of financial liability (35) $ (43)
Level 3 [Member] | Interest Rate Swap Contracts [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Contingent consideration liabilities $ (2,882)