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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Cumulative Effect, Period of Adoption, Adjustment | Common Stock | Retained earnings | Retained earnings Cumulative Effect, Period of Adoption, Adjustment | Accumulated other comprehensive income (loss) | Accumulated other comprehensive income (loss) Cumulative Effect, Period of Adoption, Adjustment | Treasury stock
--- | --- | --- | --- | --- | --- | --- | --- | ---
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest |  | $ 3,542 |  |  | $ 2,636 |  | $ 906 |
Balances at January 1, 2018 at Dec. 31, 2018 | $ 2,078,249 |  | $ 1,633,256 | $ 600,014 |  | $ (44,408) |  | $ (110,613)
Balances at January 1, 2018 at Dec. 31, 2018 |  |  | 104,281,794 |  |  |  |  | (6,387,508)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Net income | 198,075 |  |  | 198,075 |  |  |  |
Other comprehensive loss | 56,825 |  |  |  |  | 56,825 |  |
Cash dividends declared: |  |  |  |  |  |  |  |
Common Stock at $0.78 per share in 2018, $0.90 per share in 2019, and $0.92 per share in 2020 | (89,476) |  |  | (89,476) |  |  |  |
Stock Issued During Period, Shares, Acquisitions |  |  |  |  |  |  |  | 2,601,823
Common stock issued in connection with business combinations | $ 60,934 |  | $ 13,658 |  |  |  |  | $ 47,276
Treasury Stock, Shares, Acquired | (2,753,272) |  |  |  |  |  |  | (2,753,272)
Treasury Stock, Value, Acquired, Cost Method | $ (66,218) |  |  |  |  |  |  | $ (66,218)
Adjustments to Additional Paid in Capital, Other | 0 |  | (7,830) |  |  |  |  | $ 7,830
Stock Issued During Period, Shares, Other |  |  |  |  |  |  |  | 452,134
Exercise of stock options, net of shares purchased (in shares) |  |  |  |  |  |  |  | 20,424
Exercise of stock options, net of shares purchased | (90) |  | (264) |  |  |  |  | $ (354)
Restricted stock awards, net of forfeitures (in shares) |  |  |  |  |  |  |  | 275,603
Restricted stock awards, net of forfeitures | (2,285) |  | (6,018) |  |  |  |  | $ 3,733
Share-based compensation expense | 7,969 |  | $ 7,969 |  |  |  |  |
Ending Balances (in shares) at Dec. 31, 2019 |  |  | 104,281,794 |  |  |  |  | (5,790,796)
Ending Balances at Dec. 31, 2019 | 2,247,705 |  | $ 1,640,771 | 711,249 |  | 13,323 |  | $ (117,638)
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest |  | $ (56,882) |  |  | $ (56,882) |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Net income | 155,810 |  |  | 155,810 |  |  |  |
Other comprehensive loss | 35,341 |  |  |  |  | 35,341 |  |
Cash dividends declared: |  |  |  |  |  |  |  |
Common Stock at $0.78 per share in 2018, $0.90 per share in 2019, and $0.92 per share in 2020 | (89,748) |  |  | (89,748) |  |  |  |
Common stock issued in connection with business combinations | $ 0 |  |  |  |  |  |  |
Treasury Stock, Shares, Acquired | (880,000) |  |  |  |  |  |  | (880,000)
Treasury Stock, Value, Acquired, Cost Method | $ (16,686) |  |  |  |  |  |  | $ (16,686)
Exercise of stock options, net of shares purchased (in shares) |  |  |  |  |  |  |  | 10,405
Exercise of stock options, net of shares purchased | (72) |  | (140) |  |  |  |  | $ (212)
Restricted stock awards, net of forfeitures (in shares) |  |  |  |  |  |  |  | 400,526
Restricted stock awards, net of forfeitures | (1,220) |  | (9,362) |  |  |  |  | $ 8,142
Share-based compensation expense | 7,678 |  | $ 7,678 |  |  |  |  |
Ending Balances (in shares) at Dec. 31, 2020 |  |  | 104,281,794 |  |  |  |  | (6,259,865)
Ending Balances at Dec. 31, 2020 | 2,282,070 |  | $ 1,638,947 | 720,429 |  | 48,664 |  | $ (125,970)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Net income | 205,160 |  |  | 205,160 |  |  |  |
Other comprehensive loss | (49,097) |  |  |  |  | (49,097) |  |
Cash dividends declared: |  |  |  |  |  |  |  |
Common Stock at $0.78 per share in 2018, $0.90 per share in 2019, and $0.92 per share in 2020 | (88,116) |  |  | (88,116) |  |  |  |
Stock Issued During Period, Shares, Acquisitions |  |  |  |  |  |  |  | 405,805
Common stock issued in connection with business combinations | $ 10,000 |  | 1,251 |  |  |  |  | $ 8,749
Treasury Stock, Shares, Acquired | (4,633,355) |  |  |  |  |  |  | (4,633,355)
Treasury Stock, Value, Acquired, Cost Method | $ (108,077) |  |  |  |  |  |  | $ (108,077)
Exercise of stock options, net of shares purchased (in shares) | 6,936 |  |  |  |  |  |  | 6,936
Exercise of stock options, net of shares purchased | $ (64) |  | (81) |  |  |  |  | $ (145)
Restricted stock awards, net of forfeitures (in shares) |  |  |  |  |  |  |  | 347,925
Restricted stock awards, net of forfeitures | (2,697) |  | (9,394) |  |  |  |  | $ 6,697
Share-based compensation expense | 9,635 |  | $ 9,635 |  |  |  |  |
Ending Balances (in shares) at Dec. 31, 2021 |  |  | 104,281,794 |  |  |  |  | (10,132,554)
Ending Balances at Dec. 31, 2021 | $ 2,258,942 |  | $ 1,640,358 | $ 837,473 |  | $ (433) |  | $ (218,456)

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