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Debt - Additional Information (Detail) - USD ($)
Jun. 24, 2022
Mar. 01, 2022
Jun. 30, 2022
Jun. 23, 2022
Dec. 31, 2021
Debt Instrument [Line Items]          
Total debt     $ 525,992,000   $ 363,580,000
Multi-Currency Credit Facility with Syndicate of Banks [Member]          
Debt Instrument [Line Items]          
Borrowing capacity $ 450,000,000        
Committed multi-currency credit facility, maturity date Jun. 24, 2027        
Multi-Currency Revolving Credit Facility [Member]          
Debt Instrument [Line Items]          
Total debt     100,000,000    
Multi-Currency Revolving Credit Facility [Member] | Multi-Currency Credit Facility with Syndicate of Banks [Member]          
Debt Instrument [Line Items]          
Borrowing capacity $ 350,000,000        
Delayed Draw Term Loan Credit Facility [Member] | Multi-Currency Credit Facility with Syndicate of Banks [Member]          
Debt Instrument [Line Items]          
Borrowing capacity $ 100,000,000        
Series 2022-A Notes [Member]          
Debt Instrument [Line Items]          
Total debt   $ 25,000,000      
Debt instrument interest rate percentage   2.83%      
Debt instrument, periodic payment   semi-annually      
Debt Instrument, Maturity Date   Mar. 01, 2032      
Series 2022-B Notes [Member]          
Debt Instrument [Line Items]          
Total debt   $ 50,000,000      
Debt instrument interest rate percentage   2.83%      
Debt Instrument, Maturity Date   Mar. 01, 2032      
Multi Currency Revolving Credit Agreement [Member]          
Debt Instrument [Line Items]          
Borrowing capacity       $ 350,000,000  
Outstanding borrowings     100,000,000    
Letters of Credit Outstanding     7,029,000    
Unused Revolving credit     342,971,000    
Unrestricted retained earnings     $ 196,935,000   $ 468,095,000