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Transfers Accounted for as Secured Borrowings (Details) - U.S. Government-sponsored mortgage-backed securities - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Assets Sold under Agreements to Repurchase [Line Items] |  |
Collateral pledged for all repurchase agreements accounted for as secured borrowings | $ 177,102 | $ 187,946
Overnight and Continuous |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Collateral pledged for all repurchase agreements accounted for as secured borrowings | 175,449 | 178,732
Up to 30 Days |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Collateral pledged for all repurchase agreements accounted for as secured borrowings | 0 | 0
30-90 Days |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Collateral pledged for all repurchase agreements accounted for as secured borrowings | 1,653 | 7,672
Greater Than 90 Days |  |
Assets Sold under Agreements to Repurchase [Line Items] |  |
Collateral pledged for all repurchase agreements accounted for as secured borrowings | $ 0 | $ 1,542

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- Definition Carrying value, as of the balance sheet date, of securities sold under agreements to repurchase where the transferor maintains effective control over the assets, accounting for them as secured debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 7 -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 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(m)(1)(i)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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