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Debt - Summary of Company's Total Outstanding Borrowings (Detail) - USD ($)
$ in Thousands
Sep. 30, 2019
Jan. 03, 2019
Debt Instrument [Line Items]    
Principal amount outstanding $ 134,313  
Less: Deferred financing fees (2,364)  
Net carrying amount 131,949  
Term Loans [Member]    
Debt Instrument [Line Items]    
Principal amount outstanding 120,313 $ 125,000
Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Principal amount outstanding $ 14,000