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Fair Value Measurements - Other Long-Term Investments (Details) - USD ($)
Sep. 30, 2025
Dec. 31, 2024
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]    
Limited partnership $ 85,455,000 $ 93,337,000
Other long-term investments 85,738,000 93,604,000
Reported Value Measurement [Member]    
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]    
Limited partnership 84,417,000 93,337,000
FHLB common stocks 219,000 212,000
All other investments 64,000 55,000
Other long-term investments 85,738,000 93,604,000
Reported Value Measurement [Member] | Common Stock    
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]    
Limited partnership   $ 0
Reported Value Measurement [Member] | Partner Type of Partners' Capital Account, Name [Domain]    
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]    
Partnership Interest $ 1,038,000