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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Common Stock | Retained earnings | Accumulated other comprehensive income (loss) | Treasury Stock, Common
--- | --- | --- | --- | --- | ---
Beginning Balances (in shares) at Dec. 31, 2021 |  | 104,281,794 |  |  | (10,132,554)
Beginning Balances at Dec. 31, 2021 | $ 2,258,942 | $ 1,640,358 | $ 837,473 | $ (433) | $ (218,456)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income | 148,526 |  | 148,526 |  |
Other comprehensive income (loss) | (354,137) |  |  | (354,137) |
Cash dividends declared : |  |  |  |  |
Common stock at $0.23 per share in 2023 and $0.23 per share in 2022 | (65,056) |  | (65,056) |  |
Exercise of stock options, net of shares purchased (in shares) |  |  |  |  | 15,660
Exercise of stock options, net of shares purchased | (177) | (160) |  |  | $ (337)
Restricted stock awards, net of forfeitures (in shares) |  |  |  |  | 669,064
Restricted stock awards, net of forfeitures | (3,027) | (17,209) |  |  | $ 14,182
Share-based compensation expense | 8,707 | $ 8,707 |  |  |
Ending Balances (in shares) at Sep. 30, 2022 |  | 104,281,794 |  |  | (9,447,830)
Ending Balances at Sep. 30, 2022 | 1,994,132 | $ 1,631,696 | 920,943 | (354,570) | $ (203,937)
Beginning Balances (in shares) at Jun. 30, 2022 |  | 104,281,794 |  |  | (9,833,002)
Beginning Balances at Jun. 30, 2022 | 2,068,670 | $ 1,637,237 | 887,006 | (243,328) | $ (212,245)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income | 55,705 |  | 55,705 |  |
Other comprehensive income (loss) | (111,242) |  |  | (111,242) |
Cash dividends declared : |  |  |  |  |
Common stock at $0.23 per share in 2023 and $0.23 per share in 2022 | (21,768) |  | (21,768) |  |
Restricted stock awards, net of forfeitures (in shares) |  |  |  |  | 385,172
Restricted stock awards, net of forfeitures | (112) | (8,420) |  |  | $ 8,308
Share-based compensation expense | 2,879 | $ 2,879 |  |  |
Ending Balances (in shares) at Sep. 30, 2022 |  | 104,281,794 |  |  | (9,447,830)
Ending Balances at Sep. 30, 2022 | 1,994,132 | $ 1,631,696 | 920,943 | (354,570) | $ (203,937)
Retained Earnings (Accumulated Deficit) | 968,237 |  |  |  |
Beginning Balances (in shares) at Dec. 31, 2022 |  | 104,281,794 |  |  | (9,390,695)
Beginning Balances at Dec. 31, 2022 | 2,041,373 | $ 1,634,605 | 968,237 | (358,663) | $ (202,806)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income | 199,131 |  | 199,131 |  |
Other comprehensive income (loss) | (51,342) |  |  | (51,342) |
Cash dividends declared : |  |  |  |  |
Common stock at $0.23 per share in 2023 and $0.23 per share in 2022 | (65,463) |  | (65,463) |  |
Exercise of stock options, net of shares purchased (in shares) |  |  |  |  | 4,855
Exercise of stock options, net of shares purchased | (48) | (57) |  |  | $ (105)
Restricted stock awards, net of forfeitures (in shares) |  |  |  |  | 221,226
Restricted stock awards, net of forfeitures | (7,589) | (11,845) |  |  | $ 4,256
Share-based compensation expense | 13,351 | $ 13,351 |  |  |
Ending Balances (in shares) at Sep. 30, 2023 |  | 104,281,794 |  |  | (9,164,614)
Ending Balances at Sep. 30, 2023 | 2,129,509 | $ 1,636,054 | 1,101,905 | (410,005) | $ (198,445)
Beginning Balances (in shares) at Jun. 30, 2023 |  | 104,281,794 |  |  | (9,096,311)
Beginning Balances at Jun. 30, 2023 | 2,143,419 | $ 1,632,659 | 1,060,715 | (353,010) | $ (196,945)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income | 63,061 |  | 63,061 |  |
Other comprehensive income (loss) | (56,995) |  |  | (56,995) |
Cash dividends declared : |  |  |  |  |
Common stock at $0.23 per share in 2023 and $0.23 per share in 2022 | (21,871) |  | (21,871) |  |
Restricted stock awards, net of forfeitures (in shares) |  |  |  |  | (68,303)
Restricted stock awards, net of forfeitures | (2,665) | (1,165) |  |  | $ (1,500)
Share-based compensation expense | 4,560 | $ 4,560 |  |  |
Ending Balances (in shares) at Sep. 30, 2023 |  | 104,281,794 |  |  | (9,164,614)
Ending Balances at Sep. 30, 2023 | 2,129,509 | $ 1,636,054 | $ 1,101,905 | $ (410,005) | $ (198,445)
Retained Earnings (Accumulated Deficit) | $ 1,101,905 |  |  |  |

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