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Basis of Presentation and Summary of Significant Accounting Policies - Fair Value of Forward Foreign Exchange Contracts (Detail) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Foreign Currency Exchange Contract [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value, derivative asset $ 836,000 $ 16,000
Fair value, derivative liability 185,000 1,028,000
Cross Currency Interest Rate Contract [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Notional value, derivative asset 560,000,000  
Fair value, derivative asset   4,485,000
Fair value, derivative liability 44,996,000  
Other Current Assets [Member] | Foreign Currency Exchange Contract [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Notional value, derivative asset 66,690,000 119,576,000
Fair value, derivative asset 836,000 16,000
Other Current Liabilities [Member] | Foreign Currency Exchange Contract [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Notional value, derivative liability 20,000,000 29,495,000
Fair value, derivative liability 185,000 1,028,000
Other Assets [Member] | Cross Currency Interest Rate Contract [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Notional value, derivative asset 560,000,000 560,000,000
Fair value, derivative asset (44,996,000) 4,485,000
Accumulated Other Comprehensive Loss (Income) [Member] | Cross Currency Interest Rate Contract [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair value, derivative asset $ 44,996,000 $ (4,485,000)