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Low Income Housing Tax Credits and Other Tax Credit Investments - Additional Information (Details) - USD ($)
9 Months Ended
Sep. 30, 2024
Dec. 31, 2023
Investments In Affordable Housing Projects [Line Items]    
Tax credit investment $ 226,200,000 $ 223,400,000
Renewable Energy Program    
Investments In Affordable Housing Projects [Line Items]    
Equity investments 2,000,000.0 2,200,000
Outstanding investment commitments $ 0 $ 0
Low income housing tax credit and other tax credit investments    
Investments In Affordable Housing Projects [Line Items]    
Tax credit period of benefits 15 years  
Operating loss tax benefits period 15 years