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Debt - Summary of Company's Total Outstanding Borrowings (Detail) - USD ($)
$ in Thousands
Sep. 30, 2020
Dec. 31, 2019
Jan. 03, 2019
Debt Instrument [Line Items]      
Principal amount outstanding $ 111,719 $ 132,750  
Less: Deferred financing fees (1,732) (2,205)  
Net carrying amount 109,987 130,545  
Term Loans [Member]      
Debt Instrument [Line Items]      
Principal amount outstanding $ 111,719 118,750 $ 125,000
Revolving Credit Facility [Member]      
Debt Instrument [Line Items]      
Principal amount outstanding   $ 14,000