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Long-Term Debt - Summary of Long-Term Debt (Parenthetical) (Detail)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Jul. 01, 2019
Debt Instrument [Line Items]      
Long-term debt, maturity date Feb. 08, 2024    
Interest rate on debt     1.25%
2.40% Term Loan, Due Jun. 2022 [Member]      
Debt Instrument [Line Items]      
Long-term debt, maturity date Jun. 30, 2022    
Interest rate on debt 2.40% 2.40%  
Term Loan, Due Feb. 2024 [Member]      
Debt Instrument [Line Items]      
Long-term debt, maturity date Feb. 29, 2024    
2.05% Term Loan, Due Mar. 2023 [Member]      
Debt Instrument [Line Items]      
Long-term debt, maturity date Mar. 31, 2023    
Interest rate on debt 2.05% 2.05%  
1.30% Term Loan, Due Jun. 2023 [Member]      
Debt Instrument [Line Items]      
Long-term debt, maturity date Jun. 30, 2023    
Interest rate on debt 1.30% 1.30%  
1.55% Term Loan, Due Sep. 2025 [Member]      
Debt Instrument [Line Items]      
Long-term debt, maturity date Sep. 30, 2025    
Interest rate on debt 1.55% 1.55%  
Revolving Credit Facility, Due Feb. 2024 [Member]      
Debt Instrument [Line Items]      
Long-term debt, maturity date Feb. 29, 2024