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Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Treasury Stock | Retained Earnings | Accumulated Other Comprehensive Income
--- | --- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2018 | [1] |  |  | 11,620 |  |  |  |
Beginning balance at Dec. 31, 2018 | [1] | $ 515,360 |  | $ 1,166 | $ 108,422 | $ (426) | $ 451,029 | $ (44,831)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Other comprehensive income | [1] | 67,096 |  |  |  |  | 63,103 | 3,993
Stock-based compensation expense | [1] | 3,269 |  |  | 3,269 |  |  |
Stock-based compensation transactions (in shares) | [1] |  |  | 90 |  |  |  |
Stock-based compensation transactions | [1] | 1,984 |  | $ 9 | 1,975 |  |  |
Repurchased shares (in shares) | [1] |  |  | (40) |  |  |  |
Repurchased shares | [1] | (4,140) |  |  |  | (4,140) |  |
Dividends paid | [1] | (5,626) |  |  |  |  | (5,626) |
Ending balance (in shares) at Dec. 31, 2019 | [1] |  |  | 11,670 |  |  |  |
Ending balance at Dec. 31, 2019 | [1] | 577,943 |  | $ 1,175 | 113,666 | (4,566) | 508,506 | (40,838)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |
Other comprehensive income | [1] | 58,316 |  |  |  |  | 57,804 | 512
Stock-based compensation expense | [1] | 4,119 |  |  | 4,119 |  |  |
Stock-based compensation transactions (in shares) | [1] |  |  | 57 |  |  |  |
Stock-based compensation transactions | [1] | 749 |  | $ 6 | 743 |  |  |
Repurchased shares (in shares) | [1] |  |  | 0 |  |  |  |
Repurchased shares | [1] | 0 |  |  |  | 0 |  |
Dividends paid | [1] | (6,124) |  |  |  |  | (6,124) |
Ending balance (in shares) at Dec. 31, 2020 | [1] |  |  | 11,727 |  |  |  |
Ending balance at Dec. 31, 2020 | [1] | 635,003 | [2] | $ 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 |  |  |  |
Stock-based compensation transactions |  | (281) |  | $ 6 | (287) |  |  |
Dividends paid |  | (6,627) |  |  |  |  | (6,627) |
Ending balance (in shares) at Dec. 31, 2021 |  |  |  | 11,791 |  |  |  |
Ending balance at Dec. 31, 2021 |  | $ 705,663 |  | $ 1,187 | $ 124,228 | $ (4,566) | $ 633,804 | $ (48,990)
[1] | Years ended December 31, 2020 and 2019 amounts have been adjusted to reflect the change in inventory accounting method, as described in Note 1 to the Consolidated Financial Statements.
[2] | Years ended December 31, 2020 amounts have been adjusted to reflect the change in inventory accounting method, as described in Note 1 to the Consolidated Financial Statements.

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