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Investment Tax Credits (Schedule of Investment Tax Credits) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
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Federal Home Loan Banks [Abstract] |  |
Proportional amortization | $ 210,873 | $ 143,719
Unfunded affordable housing tax credit commitments | $ 114,082 | $ 81,632

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- Definition Amount of investment in qualified affordable housing projects. + References Reference 1: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Topic 323 -SubTopic 740 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481543/323-740-50-2 + Details
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- Definition Amount of commitment or contingent commitments to qualified affordable housing project investments. + References Reference 1: http://www.xbrl.org/2003/role/recommendedDisclosureRef -Topic 323 -SubTopic 740 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481543/323-740-50-2 + Details
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