Securities Sold Under Agreements to Repurchase - Carrying Value of Repurchase Agreements (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Residential mortgage-backed securities \| Overnight and Continuous
Securities Sold Under Agreements to Repurchase
Repurchase agreements	$ 1,191,323	$ 945,916

Amount, before effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and elected not to be offset.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant