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v3.22.2

Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Aug. 02, 2022 | Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Dividends declared (in dollars per share) |  | $ 0.53 | $ 0.52 | $ 1.06 | $ 1.04
Schedule of Accumulated Other Income (Loss) [Abstract] |  |  |  |  |
Balance, Beginning of Period |  |  |  | $ 72,371 | $ 335,868
Net change in unrealized gain (loss) |  | $ (242,536) | $ 8,480 | (881,577) | (141,651)
Transfer of net unrealized loss from AFS to investment securities |  |  |  | 0 |
Reclassification Adjustments Included in Earnings [Abstract] |  |  |  |  |
Interest revenues, Investment securities |  | 2,455 | 0 | 2,455 | 0
Gain on available for sale securities, net |  | (1,188) | (1,430) | (2,125) | (1,897)
Other comprehensive income, before income taxes |  | (241,269) | 7,050 | (881,247) | (143,548)
Federal and state income taxes |  | (56,467) | 1,691 | (206,248) | (34,448)
Other comprehensive income, net of income taxes |  | (184,802) | 5,359 | (674,999) | (109,100)
Balance, End of Period |  | (602,628) | 226,768 | (602,628) | 226,768
Accumulated Net Unrealized Gain (Loss) on Available for Sale Securities [Member] |  |  |  |  |
Schedule of Accumulated Other Income (Loss) [Abstract] |  |  |  |  |
Balance, Beginning of Period |  |  |  | 69,775 | 335,032
Net change in unrealized gain (loss) |  |  |  | (881,577) | (141,651)
Transfer of net unrealized loss from AFS to investment securities |  |  |  | 267,509 |
Reclassification Adjustments Included in Earnings [Abstract] |  |  |  |  |
Interest revenues, Investment securities |  |  |  | 0 |
Gain on available for sale securities, net |  |  |  | (2,125) | (1,897)
Other comprehensive income, before income taxes |  |  |  | (616,193) | (143,548)
Federal and state income taxes |  |  |  | (144,215) | (34,448)
Other comprehensive income, net of income taxes |  |  |  | (471,978) | (109,100)
Balance, End of Period |  | (402,203) | 225,932 | (402,203) | 225,932
Accumulated Unrealized Gain (Loss) on Employee Benefit Plans [Member] |  |  |  |  |
Schedule of Accumulated Other Income (Loss) [Abstract] |  |  |  |  |
Balance, Beginning of Period |  |  |  | 2,596 | 836
Net change in unrealized gain (loss) |  |  |  | 0 | 0
Transfer of net unrealized loss from AFS to investment securities |  |  |  | 0 |
Reclassification Adjustments Included in Earnings [Abstract] |  |  |  |  |
Interest revenues, Investment securities |  |  |  | 0 |
Gain on available for sale securities, net |  |  |  | 0 | 0
Other comprehensive income, before income taxes |  |  |  | 0 | 0
Federal and state income taxes |  |  |  | 0 | 0
Other comprehensive income, net of income taxes |  |  |  | 0 | 0
Balance, End of Period |  | 2,596 | 836 | 2,596 | 836
AOCI, Accumulated Gain (Loss), Debt Securities, Investment Securities Transferred from Available-for-sale, Parent |  |  |  |  |
Schedule of Accumulated Other Income (Loss) [Abstract] |  |  |  |  |
Balance, Beginning of Period |  |  |  | 0 | 0
Net change in unrealized gain (loss) |  |  |  | 0 | 0
Transfer of net unrealized loss from AFS to investment securities |  |  |  | (267,509) |
Reclassification Adjustments Included in Earnings [Abstract] |  |  |  |  |
Interest revenues, Investment securities |  |  |  | 2,455 |
Gain on available for sale securities, net |  |  |  | 0 | 0
Other comprehensive income, before income taxes |  |  |  | (265,054) | 0
Federal and state income taxes |  |  |  | (62,033) | 0
Other comprehensive income, net of income taxes |  |  |  | (203,021) | 0
Balance, End of Period |  | $ (203,021) | $ 0 | $ (203,021) | $ 0
Subsequent Event [Member] |  |  |  |  |
Dividends Payable, Date Declared | Aug. 02, 2022 |  |  |  |
Dividends declared (in dollars per share) | $ 0.53 |  |  |  |
Dividends Payable, Date to be Paid | Aug. 25, 2022 |  |  |  |
Dividends Payable, Date of Record | Aug. 16, 2022 |  |  |  |

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