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Short-Term and Long-Term Borrowings - Summary of Outstanding Long-term Debt (Details) - USD ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Debt Instrument [Line Items]    
Long-term debt $ 827,000 $ 827,000
Unamortized Long-Term Debt Issuance Costs 2,941 3,179
Total Long-Term Debt Net of Unamortized Debt Issuance Costs $ 824,059 823,821
Guaranteed Senior Notes    
Debt Instrument [Line Items]    
Rate (as a percent) 3.55%  
Long-term debt $ 80,000 80,000
Series 2007C Senior Unsecured Notes    
Debt Instrument [Line Items]    
Rate (as a percent) 6.37%  
Long-term debt $ 42,000 42,000
Series 2013A Senior Unsecured Notes    
Debt Instrument [Line Items]    
Rate (as a percent) 4.68%  
Long-term debt $ 60,000 60,000
Series 2019A Senior Unsecured Notes    
Debt Instrument [Line Items]    
Rate (as a percent) 3.07%  
Long-term debt $ 10,000 10,000
Series 2020A Senior Unsecured Notes    
Debt Instrument [Line Items]    
Rate (as a percent) 3.22%  
Long-term debt $ 10,000 10,000
Series 2020B Senior Unsecured Notes    
Debt Instrument [Line Items]    
Rate (as a percent) 3.22%  
Long-term debt $ 40,000 40,000
Series 2021A Senior Unsecured Notes    
Debt Instrument [Line Items]    
Rate (as a percent) 2.74%  
Long-term debt $ 40,000 40,000
Series 2007D Senior Unsecured Notes    
Debt Instrument [Line Items]    
Rate (as a percent) 6.47%  
Long-term debt $ 50,000 50,000
Series 2019B Senior Unsecured Notes    
Debt Instrument [Line Items]    
Rate (as a percent) 3.52%  
Long-term debt $ 26,000 26,000
Series 2020C Senior Unsecured Notes    
Debt Instrument [Line Items]    
Rate (as a percent) 3.62%  
Long-term debt $ 10,000 10,000
Series 2013B Senior Unsecured Notes    
Debt Instrument [Line Items]    
Rate (as a percent) 5.47%  
Long-term debt $ 90,000 90,000
Series 2018A Senior Unsecured Notes    
Debt Instrument [Line Items]    
Rate (as a percent) 4.07%  
Long-term debt $ 100,000 100,000
Series 2019C Senior Unsecured Notes    
Debt Instrument [Line Items]    
Rate (as a percent) 3.82%  
Long-term debt $ 64,000 64,000
Series 2020D Senior Unsecured Notes    
Debt Instrument [Line Items]    
Rate (as a percent) 3.92%  
Long-term debt $ 15,000 15,000
Series 2021B Senior Unsecured Notes    
Debt Instrument [Line Items]    
Rate (as a percent) 3.69%  
Long-term debt $ 100,000 100,000
Series 2022A Senior Unsecured Notes    
Debt Instrument [Line Items]    
Rate (as a percent) 3.77%  
Long-term debt $ 90,000 $ 90,000