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Securities - Securities Pledged as Collateral (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
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Investment Securities |  |
Carrying amount of the securities pledged to collateralize repurchase agreements | $ 8,014,663 | $ 8,189,780
Asset Pledged as Collateral [Member] |  |
Investment Securities |  |
Carrying amount of the securities pledged to collateralize repurchase agreements | 2,400,000 | 2,600,000
Asset Pledged as Collateral [Member] | Public Funds Deposits |  |
Investment Securities |  |
Carrying amount of the securities pledged to collateralize repurchase agreements | 1,900,000 | 1,900,000
Asset Pledged as Collateral [Member] | FHLB Advances |  |
Investment Securities |  |
Carrying amount of the securities pledged to collateralize repurchase agreements | 415,700 | 596,100
Asset Pledged as Collateral [Member] | Interest rate swap |  |
Investment Securities |  |
Carrying amount of the securities pledged to collateralize repurchase agreements | $ 113,200 | $ 114,900

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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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- Definition Sum of the carrying amounts as of the balance sheet date of all investments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(h)) -URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910 + Details
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