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v3.22.2.2

Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Nov. 01, 2022 | Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021
Dividends declared (in dollars per share) |  | $ 0.53 | $ 0.52 | $ 1.59 | $ 1.56
Schedule of Accumulated Other Income (Loss) [Abstract] |  |  |  |  |
Balance, Beginning of Period |  |  |  | $ 72,371 | $ 335,868
Net change in unrealized gain (loss) |  | $ (412,084) | $ (74,525) | (1,293,661) | (216,176)
Transfer of net unrealized loss from AFS to investment securities |  |  |  | 0 |
Reclassification Adjustments Included in Earnings [Abstract] |  |  |  |  |
Interest revenue, Investment securities |  | 21,675 | 0 | 24,130 | 0
Operating expense, Personnel |  | (3,483) | 0 | (3,483) | 0
Gain on available for sale securities, net |  | (892) | (1,255) | (3,017) | (3,152)
Other comprehensive income, before income taxes |  | (394,784) | (75,780) | (1,276,031) | (219,328)
Federal and state income taxes |  | (92,467) | (18,184) | (298,715) | (52,632)
Other comprehensive income, net of income taxes |  | (302,317) | (57,596) | (977,316) | (166,696)
Balance, End of Period |  | (904,945) | 169,172 | (904,945) | 169,172
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) |  |  |  | (1,293,661) | (216,176)
Transfer of net unrealized loss from AFS to investment securities |  |  |  | 267,509 |
Reclassification Adjustments Included in Earnings [Abstract] |  |  |  |  |
Interest revenue, Investment securities |  |  |  | 0 |
Operating expense, Personnel |  |  |  | 0 |
Gain on available for sale securities, net |  |  |  | (3,017) | (3,152)
Other comprehensive income, before income taxes |  |  |  | (1,029,169) | (219,328)
Federal and state income taxes |  |  |  | (240,868) | (52,632)
Other comprehensive income, net of income taxes |  |  |  | (788,301) | (166,696)
Balance, End of Period |  | (718,526) | 168,336 | (718,526) | 168,336
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 revenue, Investment securities |  |  |  | 24,130 |
Operating expense, Personnel |  |  |  | 0 |
Gain on available for sale securities, net |  |  |  | 0 | 0
Other comprehensive income, before income taxes |  |  |  | (243,379) | 0
Federal and state income taxes |  |  |  | (56,960) | 0
Other comprehensive income, net of income taxes |  |  |  | (186,419) | 0
Balance, End of Period |  | (186,419) | 0 | (186,419) | 0
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 revenue, Investment securities |  |  |  | 0 |
Operating expense, Personnel |  |  |  | (3,483) |
Gain on available for sale securities, net |  |  |  | 0 | 0
Other comprehensive income, before income taxes |  |  |  | (3,483) | 0
Federal and state income taxes |  |  |  | (887) | 0
Other comprehensive income, net of income taxes |  |  |  | (2,596) | 0
Balance, End of Period |  | $ 0 | $ 836 | $ 0 | $ 836
Subsequent Event [Member] |  |  |  |  |
Dividends Payable, Date Declared | Nov. 01, 2022 |  |  |  |
Dividends declared (in dollars per share) | $ 0.54 |  |  |  |
Dividends Payable, Date to be Paid | Nov. 25, 2022 |  |  |  |
Dividends Payable, Date of Record | Nov. 15, 2022 |  |  |  |

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