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Assets Purchased under Resale Agreements and Sold under Repurchase Agreements - Balance Sheet Offsetting (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Assets, Resale Agreements |  |
Gross Amounts of Recognized Assets | $ 785,000 | $ 792,192
Gross Amounts Offset on the Consolidated Balance Sheet | 0 | 0
Net Amounts of Assets Presented on the Consolidated Balance Sheet | 785,000 | 792,192
Assets Purchased under Agreements to Resell Gross Amounts Not Offset [Abstract] |  |
Collateral Received | (687,327) | (701,790)
Net Amount | 97,673 | 90,402
Liabilities, Repurchase Agreements |  |
Gross Amounts of Recognized Liabilities | 0 | 300,000
Gross Amounts Offset on the Consolidated Balance Sheet | 0 | 0
Net Amounts of Liabilities Presented on the Consolidated Balance Sheet | 0 | 300,000
Assets Sold under Agreements to Repurchase Gross Amounts Not Offset [Abstract] |  |
Collateral Pledged | 0 | (300,000)
Net Amount | $ 0 | $ 0

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