Assets Purchased under Resale Agreements and Sold under Repurchase Agreements - Balance Sheet Offsetting (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Assets, Resale Agreements
Gross Amounts of Recognized Assets	$ 792,192	$ 2,353,503
Gross Amounts Offset on the Consolidated Balance Sheet	0	0
Net Amounts of Assets Presented on the Consolidated Balance Sheet	792,192	2,353,503
Gross Amounts  Not Offset on the Consolidated  Balance Sheet
Collateral Received	(701,790)	(2,327,687)
Net Amount	90,402	25,816
Liabilities, Repurchase Agreements
Gross Amounts of Recognized Liabilities	300,000	300,000
Gross Amounts Offset on the Consolidated Balance Sheet	0	0
Net Amounts of Liabilities Presented on the Consolidated Balance Sheet	300,000	300,000
Gross Amounts  Not Offset on the Consolidated  Balance Sheet
Collateral Pledged	(300,000)	(300,000)
Net Amount	$ 0	$ 0