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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Thousands | Total | Common Stock | Paid In Capital | Retained Earnings | Treasury Stock | Accumulated Other Comprehensive Income (Loss)
--- | --- | --- | --- | --- | --- | ---
Beginning balance, net of tax at Dec. 31, 2021 | $ 912,172 | $ 47,461 | $ 780,501 | $ 179,813 | $ (155,308) | $ 59,705
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 24,996 |  |  | 24,996 |  |
Other comprehensive income (loss) | (139,976) |  |  |  |  | (139,976)
Issuance of common stock for dividend reinvestment plan | 322 | 10 | 312 |  |  |
Purchase of common stock | (3,358) |  |  |  | (3,358) |
Stock compensation expense | 819 |  | 819 |  |  |
Net issuance of common stock under employee stock plans | 269 |  | 182 | (67) | 154 |
Cash dividends paid on common stock | (11,003) |  |  | (11,003) |  |
Ending balance, net of tax at Mar. 31, 2022 | 784,241 | 47,471 | 781,814 | 193,739 | (158,512) | (80,271)
Beginning balance, net of tax at Dec. 31, 2021 | 912,172 | 47,461 | 780,501 | 179,813 | (155,308) | 59,705
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 77,352 |  |  |  |  |
Other comprehensive income (loss) | (240,395) |  |  |  |  |
Ending balance, net of tax at Sep. 30, 2022 | 707,636 | 47,490 | 783,803 | 224,142 | (167,109) | (180,690)
Beginning balance, net of tax at Mar. 31, 2022 | 784,241 | 47,471 | 781,814 | 193,739 | (158,512) | (80,271)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 25,405 |  |  | 25,405 |  |
Other comprehensive income (loss) | (59,064) |  |  |  |  | (59,064)
Issuance of common stock for dividend reinvestment plan | 313 | 10 | 303 |  |  |
Purchase of common stock | (8,842) |  |  |  | (8,842) |
Stock compensation expense | 847 |  | 847 |  |  |
Net issuance of common stock under employee stock plans | (212) |  | (453) | (67) | 308 |
Cash dividends paid on common stock | (10,906) |  |  | (10,906) |  |
Ending balance, net of tax at Jun. 30, 2022 | 731,782 | 47,481 | 782,511 | 208,171 | (167,046) | (139,335)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 26,951 |  |  | 26,951 |  |
Other comprehensive income (loss) | (41,355) |  |  |  |  | (41,355)
Issuance of common stock for dividend reinvestment plan | 278 | 9 | 269 |  |  |
Purchase of common stock | (309) |  |  |  | (309) |
Stock compensation expense | 760 |  | 760 |  |  |
Net issuance of common stock under employee stock plans | 448 |  | 263 | (61) | 246 |
Cash dividends paid on common stock | (10,919) |  |  | (10,919) |  |
Ending balance, net of tax at Sep. 30, 2022 | 707,636 | 47,490 | 783,803 | 224,142 | (167,109) | (180,690)
Beginning balance, net of tax at Dec. 31, 2022 | 745,997 | 47,501 | 784,545 | 239,610 | (188,203) | (137,456)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 26,034 |  |  | 26,034 |  |
Other comprehensive income (loss) | 4,144 |  |  |  |  | 4,144
Issuance of common stock for dividend reinvestment plan | 302 | 10 | 292 |  |  |
Purchase of common stock | (15,945) |  |  |  | (15,945) |
Stock compensation expense | 914 |  | 914 |  |  |
Net issuance of common stock under employee stock plans | 572 |  | 368 | (91) | 295 |
Cash dividends paid on common stock | (10,988) |  |  | (10,988) |  |
Ending balance, net of tax at Mar. 31, 2023 | 751,030 | 47,511 | 786,119 | 254,565 | (203,853) | (133,312)
Beginning balance, net of tax at Dec. 31, 2022 | 745,997 | 47,501 | 784,545 | 239,610 | (188,203) | (137,456)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 69,376 |  |  |  |  |
Other comprehensive income (loss) | (17,521) |  |  |  |  |
Ending balance, net of tax at Sep. 30, 2023 | 728,595 | 47,537 | 788,190 | 276,312 | (228,467) | (154,977)
Beginning balance, net of tax at Mar. 31, 2023 | 751,030 | 47,511 | 786,119 | 254,565 | (203,853) | (133,312)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 24,893 |  |  | 24,893 |  |
Other comprehensive income (loss) | 17,619 |  |  |  |  | 17,619
Issuance of common stock for dividend reinvestment plan | 299 | 13 | 286 |  |  |
Purchase of common stock | (18,725) |  |  |  | (18,725) |
Stock compensation expense | 924 |  | 924 |  |  |
Net issuance of common stock under employee stock plans | (159) |  | (302) | (95) | 238 |
Cash dividends paid on common stock | (10,720) |  |  | (10,720) |  |
Ending balance, net of tax at Jun. 30, 2023 | 765,161 | 47,524 | 787,027 | 268,643 | (222,340) | (115,693)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net income | 18,449 |  |  | 18,449 |  |
Other comprehensive income (loss) | (39,284) |  |  |  |  | (39,284)
Issuance of common stock for dividend reinvestment plan | 307 | 13 | 294 |  |  |
Purchase of common stock | (6,237) |  |  |  | (6,237) |
Stock compensation expense | 875 |  | 875 |  |  |
Net issuance of common stock under employee stock plans | 11 |  | (6) | (93) | 110 |
Cash dividends paid on common stock | (10,687) |  |  | (10,687) |  |
Ending balance, net of tax at Sep. 30, 2023 | $ 728,595 | $ 47,537 | $ 788,190 | $ 276,312 | $ (228,467) | $ (154,977)

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