Low Income Housing Tax Credits and Other Tax Credit Investments - Additional Information (Details) - USD ($)	9 Months Ended
	Sep. 30, 2023	Dec. 31, 2022
Investments In Affordable Housing Projects [Line Items]
Tax credit investment	$ 226,800,000	$ 131,300,000
Renewable Energy Program
Investments In Affordable Housing Projects [Line Items]
Equity investments	2,300,000	2,600,000
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