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Repurchase Agreements (Details) - USD ($) $ in Millions | Sep. 30, 2021 | Dec. 31, 2020
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Secured Debt, Repurchase Agreements |  |
Carrying amount of securities sold under repurchase agreements with customers | $ 375.4 | $ 394.9
Carrying amount of the securities pledged to collateralize repurchase agreements | $ 447.5 | $ 515.9

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- Definition The carrying amount as of the date of the latest financial statement presented of securities which are owned but transferred to serve as collateral for repurchase agreements, and for which the transferee does not have the right by contract or custom to sell or re-pledge them to an unrelated party. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 30 -Section 50 -Paragraph 1A -Subparagraph (b)(1)(i) -URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729 + Details
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Balance Type: | debit
Period Type: | instant

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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 + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | credit
Period Type: | instant

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- References No definition available. + Details
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