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v3.20.2

Shareholders' Equity (Details) - USD ($) $ / shares in Units, $ in Thousands |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | ---
Nov. 03, 2020 | Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Dividends declared (in dollars per share) |  |  | $ 0.51 | $ 0.50 | $ 1.53 |  | $ 1.50 |
Schedule of Accumulated Other Income (Loss) [Abstract] |  |  |  |  |  |  |  |
Balance, Beginning of Period |  |  |  |  | $ 104,923 |  | $ (72,585) |
Net change in unrealized gain (loss) |  |  | $ (6,783) | $ 46,285 | 347,985 |  | 274,441 |
Reclassification Adjustments Included in Earnings [Abstract] |  |  |  |  |  |  |  |
Loss (gain) on available for sale securities, net |  |  | 12 | (5) | (5,571) |  | (1,110) |
Other comprehensive income, before income taxes |  |  | (6,771) | 46,280 | 342,414 |  | 273,331 |
Federal and state income taxes |  |  | (1,625) | 11,096 | 82,167 | [1] | 66,993 | [1]
Other comprehensive income, net of income taxes |  |  | (5,146) | 35,184 | 260,247 |  | 206,338 |
Balance, End of Period |  |  | 365,170 | 133,753 | 365,170 |  | 133,753 |
Accumulated Net Unrealized Gain (Loss) on Available for Sale Securities [Member] |  |  |  |  |  |  |  |
Schedule of Accumulated Other Income (Loss) [Abstract] |  |  |  |  |  |  |  |
Balance, Beginning of Period |  |  |  |  | 104,996 |  | (70,999) |
Net change in unrealized gain (loss) |  |  |  |  | 347,985 |  | 274,441 |
Reclassification Adjustments Included in Earnings [Abstract] |  |  |  |  |  |  |  |
Loss (gain) on available for sale securities, net |  |  |  |  | (5,571) |  | (1,110) |
Other comprehensive income, before income taxes |  |  |  |  | 342,414 |  | 273,331 |
Federal and state income taxes | [1] |  |  |  | 82,167 |  | 66,993 |
Other comprehensive income, net of income taxes |  |  |  |  | 260,247 |  | 206,338 |
Balance, End of Period |  |  | 365,243 | 135,339 | 365,243 |  | 135,339 |
Accumulated Unrealized Gain (Loss) on Employee Benefit Plans [Member] |  |  |  |  |  |  |  |
Schedule of Accumulated Other Income (Loss) [Abstract] |  |  |  |  |  |  |  |
Balance, Beginning of Period |  |  |  |  | (73) |  | (1,586) |
Net change in unrealized gain (loss) |  |  |  |  | 0 |  | 0 |
Reclassification Adjustments Included in Earnings [Abstract] |  |  |  |  |  |  |  |
Loss (gain) on available for sale securities, net |  |  |  |  | 0 |  | 0 |
Other comprehensive income, before income taxes |  |  |  |  | 0 |  | 0 |
Federal and state income taxes | [1] |  |  |  | 0 |  | 0 |
Other comprehensive income, net of income taxes |  |  |  |  | 0 |  | 0 |
Balance, End of Period |  |  | $ (73) | $ (1,586) | $ (73) |  | $ (1,586) |
Subsequent Event [Member] |  |  |  |  |  |  |  |
Dividends Payable, Date Declared |  | Nov. 03, 2020 |  |  |  |  |  |
Dividends declared (in dollars per share) |  | $ 0.52 |  |  |  |  |  |
Dividends Payable, Date to be Paid |  | Nov. 24, 2020 |  |  |  |  |  |
Dividends Payable, Date of Record |  | Nov. 16, 2020 |  |  |  |  |  |
[1] | Calculated using a 25 percent blended federal and state statutory tax rate.

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