Assets Purchased under Resale Agreements and Sold under Repurchase Agreements - Repurchase Agreements (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Amount of securities sold under repurchase agreements
Gross repurchase agreements	$ 300,000,000	$ 300,000,000
Securities sold under agreements to repurchase average rate paid	3.07%	2.61%	3.25%
Repurchase agreements’ extinguishment cost	$ 0	$ 0	$ 8,740,000
Extinguishment of repurchase agreements			$ 150,000,000.0