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Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Treasury Stock | Retained Earnings | Accumulated Other Comprehensive Income
--- | --- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2020 |  | 11,727,000 |  |  |  |
Beginning balance at Dec. 31, 2020 | $ 635,003 | $ 1,181 | $ 118,528 | $ (4,566) | $ 560,186 | $ (40,326)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Other comprehensive income | 71,581 |  |  |  | 80,245 | (8,664)
Stock-based compensation expense | 5,987 |  | 5,987 |  |  |
Stock-based compensation transactions (in shares) |  | 64,000 |  |  |  |
Stock-based compensation transactions | (281) | $ 6 | (287) |  |  |
Dividends paid | (6,627) |  |  |  | (6,627) |
Ending balance (in shares) at Dec. 31, 2021 |  | 11,791,000 |  |  |  |
Ending balance at Dec. 31, 2021 | 705,663 | $ 1,187 | 124,228 | (4,566) | 633,804 | (48,990)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Other comprehensive income | 82,650 |  |  |  | 101,928 | (19,278)
Stock-based compensation expense | 5,561 |  | 5,561 |  |  |
Stock-based compensation transactions (in shares) |  | 40,000 |  |  |  |
Stock-based compensation transactions | 35 | $ 4 | 31 |  |  |
Dividends paid | $ (8,549) |  |  |  | (8,549) |
Ending balance (in shares) at Dec. 31, 2022 | 11,913,890 | 11,831,000 |  |  |  |
Ending balance at Dec. 31, 2022 | $ 785,360 | $ 1,191 | 129,820 | (4,566) | 727,183 | (68,268)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Other comprehensive income | 149,912 |  |  |  | 136,161 | 13,751
Stock-based compensation expense | 7,424 |  | 7,424 |  |  |
Stock-based compensation transactions (in shares) |  | 51,000 |  |  |  |
Stock-based compensation transactions | 552 | $ 5 | 547 |  |  |
Dividends paid | $ (10,485) |  |  |  | (10,485) |
Ending balance (in shares) at Dec. 31, 2023 | 11,964,181 | 11,882,000 |  |  |  |
Ending balance at Dec. 31, 2023 | $ 932,763 | $ 1,196 | $ 137,791 | $ (4,566) | $ 852,859 | $ (54,517)

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