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Long-Term Debt - Schedule of Debt (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Debt Instrument [Line Items]    
Senior revolving credit facility maturing in 2026, net of debt issuance costs $ 324,060 $ 212,231
Total 597,651 307,157
Short-term debt 0 20,000
Long-term debt $ 597,651 287,157
2010 Senior Notes payable through 2021, 4.00%, net of debt issuance costs    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate percentage 4.00%  
Senior notes payable $ 0 20,000
2016 Senior Notes payable through 2031, 3.40%, net of debt issuance costs    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate percentage 3.40%  
Senior notes payable $ 74,203 74,926
2021 Senior Notes payable through 2036, 2.69%, net of debt issuance costs    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate percentage 2.69%  
Senior notes payable $ 99,694 0
2021 Senior Notes payable through 2036, 2.69%, net of debt issuance costs    
Debt Instrument [Line Items]    
Debt instrument, stated interest rate percentage 2.69%  
Senior notes payable $ 99,694 $ 0