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Securities Sold Under Agreements to Repurchase - Carrying Value of Repurchase Agreements (Details) - Overnight and Continuous - USD ($) $ in Thousands | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Securities Sold Under Agreements to Repurchase |  |
Repurchase agreements | $ 1,040,939 | $ 1,004,583
State and local governments |  |
Securities Sold Under Agreements to Repurchase |  |
Repurchase agreements | 118,957 | 787,016
Corporate bonds |  |
Securities Sold Under Agreements to Repurchase |  |
Repurchase agreements | 137,461 | 217,567
Residential mortgage-backed securities |  |
Securities Sold Under Agreements to Repurchase |  |
Repurchase agreements | 773,204 | 0
Commercial mortgage-backed securities |  |
Securities Sold Under Agreements to Repurchase |  |
Repurchase agreements | $ 11,317 | $ 0

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- Definition 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. + References 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 http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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