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Fair Value Measurements - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jul. 11, 2019
Jun. 30, 2020
Jun. 30, 2020
Dec. 31, 2019
Fair Values Of Financial Assets And Liabilities Including Derivative Financial Instruments [Line Items]        
Gain (loss) of the effective portion of change in fair value of foreign currency forward contracts     $ 747,000 $ (1,033,000)
Fair value of foreign currency contracts   $ (576,000) (576,000) (994,000)
Long-term debt and finance leases, non-current   325,727,000 325,727,000 310,378,000
Quoted Prices in Active Markets for Identical Assets Level (2)        
Fair Values Of Financial Assets And Liabilities Including Derivative Financial Instruments [Line Items]        
Fair value of long term debt   338,527,000 338,527,000 325,578,000
Foreign Currency Derivative        
Fair Values Of Financial Assets And Liabilities Including Derivative Financial Instruments [Line Items]        
Notional amount of derivative instruments   145,498,000 $ 145,498,000 167,915,000
Foreign Currency Derivative | Maximum        
Fair Values Of Financial Assets And Liabilities Including Derivative Financial Instruments [Line Items]        
Maturity period of hedges     12 months  
Interest Rate Swaps        
Fair Values Of Financial Assets And Liabilities Including Derivative Financial Instruments [Line Items]        
Notional amount of derivative instruments $ 200,000,000      
Payments of derivative instruments   591,000 $ 608,000  
Variable interest rate of inters rate swap derivative instrument 1.72%      
Derivatives Designated as Cash Flow Hedges        
Fair Values Of Financial Assets And Liabilities Including Derivative Financial Instruments [Line Items]        
Maturity period of hedges     2 years  
Term Loan A Facility | Line of Credit | London Interbank Offered Rate (LIBOR)        
Fair Values Of Financial Assets And Liabilities Including Derivative Financial Instruments [Line Items]        
Basis points on Term Loan A 1.50%      
Fair Value, Measurements, Recurring | Interest Rate Swaps        
Fair Values Of Financial Assets And Liabilities Including Derivative Financial Instruments [Line Items]        
Change in fair value of swaps   (10,200,000) $ (10,200,000) (1,032,000)
Fair Value, Measurements, Recurring | Interest Rate Swaps | Quoted Prices in Active Markets for Identical Assets Level (2)        
Fair Values Of Financial Assets And Liabilities Including Derivative Financial Instruments [Line Items]        
Change in fair value of swaps   $ (10,200,000) $ (10,200,000) $ (1,032,000)