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Securities Sold Under Agreements to Repurchase - Contractual Maturity of the Agreements (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |
Repurchase agreements | $ 248,900 | $ 133,200
U.S. Government agencies |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |
Repurchase agreements | 248,861 | 133,220
Overnight and Continuous | U.S. Government agencies |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |
Repurchase agreements | 248,861 | 133,220
Up to 30 Days | U.S. Government agencies |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |
Repurchase agreements | 0 | 0
30-90 Days | U.S. Government agencies |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |
Repurchase agreements | 0 | 0
Greater than 90 Days | U.S. Government agencies |  |
Transfer of Certain Financial Assets Accounted for as Secured Borrowings [Line Items] |  |
Repurchase agreements | $ 0 | $ 0

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- Definition Amount, before effects of master netting arrangements, of funds outstanding borrowed in the form of a financial asset repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same financial asset at a date certain for a specified price. Includes repurchase-to-maturity transactions and liabilities not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 7 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 7 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL34722452-111729 + 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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