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Accumulated Other Comprehensive Income (Loss) (Components of unrealized holding gains on AFS securities) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Unrealized gains (losses) on AFS securities arising during the period |  | $ (7,638) | $ (10,670) | $ 972 | $ (33,598)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax |  | 66 | 0 | 67 | 0
Tax effect | [1] | 1,601 | 2,163 | (128) | 6,899
Unrealized gains (losses), net of tax |  | (6,103) | (8,507) | 777 | (26,699)
Unrealized Holding Gains (Losses) on AFS Securities [Member] |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Unrealized gains (losses) on AFS securities arising during the period |  | (7,638) | (10,670) | 972 | (33,598)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax |  | (66) | 0 | (67) | 0
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax |  | (7,704) | (10,670) | 905 | (33,598)
Tax effect |  | 1,601 | 2,163 | (128) | 6,899
Unrealized gains (losses), net of tax |  | (6,103) | (8,507) | 777 | (26,699)
Unrealized Holding Gains (Losses) on AFS Securities [Member] | Auction Rate Money Market Preferred and Preferred Stocks [Member] |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Unrealized gains (losses) on AFS securities arising during the period |  | (79) | (370) | 295 | (745)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax |  | 0 | 0 | 0 | 0
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax |  | (79) | (370) | 295 | (745)
Tax effect |  | 0 | 0 | 0 | 0
Unrealized gains (losses), net of tax |  | (79) | (370) | 295 | (745)
Unrealized Holding Gains (Losses) on AFS Securities [Member] | All Other AFS Securities [Member] |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Unrealized gains (losses) on AFS securities arising during the period |  | (7,559) | (10,300) | 677 | (32,853)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, before Tax |  | (66) | 0 | (67) | 0
OCI, Debt Securities, Available-for-Sale, Gain (Loss), after Adjustment, before Tax |  | (7,625) | (10,300) | 610 | (32,853)
Tax effect |  | 1,601 | 2,163 | (128) | 6,899
Unrealized gains (losses), net of tax |  | (6,024) | (8,137) | 482 | (25,954)
Accumulated Defined Benefit Plans Adjustment [Member] |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Unrealized gains (losses), net of tax |  | $ 0 | $ 0 | $ 0 | $ 0
[1] | See “Note 9 – Accumulated Other Comprehensive Income” for tax effect reconciliation.

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