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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands | Common Stock | Capital in Excess of Par Value | Retained Earnings | Accumulated Other Comprehensive (Loss) Income | Total
--- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2021 | $ 21,563 |  | $ 640,936 | $ (20,708) | $ 641,791
Balance (in shares) at Dec. 31, 2021 | 215,629,000 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Stock issued for stock incentive plans, net | $ 104 | $ 1,393 |  |  | 1,497
Stock issued for stock incentive plans, net (in shares) | 1,037,000 |  |  |  |
Stock purchased and retired | $ (19) | (1,393) | 502 |  | (910)
Stock purchased and retired (in shares) | (190,000) |  |  |  |
Net income |  |  | 15,079 |  | 15,079
Pension adjustment, net of taxes |  |  |  | 195 | 195
Foreign currency translation |  |  |  | 116 | 116
Balance at Mar. 31, 2022 | $ 21,648 |  | 656,517 | (20,397) | 657,768
Balance (in shares) at Mar. 31, 2022 | 216,476,000 |  |  |  |
Balance at Dec. 31, 2021 | $ 21,563 |  | 640,936 | (20,708) | 641,791
Balance (in shares) at Dec. 31, 2021 | 215,629,000 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net income |  |  |  |  | 131,358
Foreign currency translation |  |  |  |  | 91
Balance at Sep. 30, 2022 | $ 21,663 |  | 771,779 | (20,032) | 773,410
Balance (in shares) at Sep. 30, 2022 | 216,631,000 |  |  |  |
Balance at Mar. 31, 2022 | $ 21,648 |  | 656,517 | (20,397) | 657,768
Balance (in shares) at Mar. 31, 2022 | 216,476,000 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Stock issued for stock incentive plans, net | $ 18 | 1,677 |  |  | 1,695
Stock issued for stock incentive plans, net (in shares) | 186,000 |  |  |  |
Stock purchased and retired |  | (1,677) | 1,677 |  |
Net income |  |  | 46,939 |  | 46,939
Pension adjustment, net of taxes |  |  |  | 195 | 195
Foreign currency translation |  |  |  | 65 | 65
Balance at Jun. 30, 2022 | $ 21,666 |  | 705,133 | (20,137) | 706,662
Balance (in shares) at Jun. 30, 2022 | 216,662,000 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Stock issued for stock incentive plans, net | $ (3) | 1,575 |  |  | 1,572
Stock issued for stock incentive plans, net (in shares) | (31,000) |  |  |  |
Stock purchased and retired |  | (1,575) | 1,573 |  | (2)
Net income |  |  | 69,340 |  | 69,340
Dividends |  |  | (4,267) |  | (4,267)
Pension adjustment, net of taxes |  |  |  | 195 | 195
Foreign currency translation |  |  |  | (90) | (90)
Balance at Sep. 30, 2022 | $ 21,663 |  | 771,779 | (20,032) | 773,410
Balance (in shares) at Sep. 30, 2022 | 216,631,000 |  |  |  |
Balance at Dec. 31, 2022 | $ 21,661 |  | 856,013 | (19,939) | $ 857,735
Balance (in shares) at Dec. 31, 2022 | 216,609,000 |  |  |  | 216,609,191
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Stock issued for stock incentive plans, net | $ 115 | 1,687 |  |  | $ 1,802
Stock issued for stock incentive plans, net (in shares) | 1,149,000 |  |  |  |
Stock purchased and retired | $ (139) | (1,687) | (9,523) |  | (11,349)
Stock purchased and retired (in shares) | (1,388,000) |  |  |  |
Net income |  |  | 71,524 |  | 71,524
Dividends |  |  | (8,679) |  | (8,679)
Pension adjustment, net of taxes |  |  |  | 16,678 | 16,678
Foreign currency translation |  |  |  | (16) | (16)
Balance at Mar. 31, 2023 | $ 21,637 |  | 909,335 | (3,277) | 927,695
Balance (in shares) at Mar. 31, 2023 | 216,370,000 |  |  |  |
Balance at Dec. 31, 2022 | $ 21,661 |  | 856,013 | (19,939) | $ 857,735
Balance (in shares) at Dec. 31, 2022 | 216,609,000 |  |  |  | 216,609,191
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Net income |  |  |  |  | $ 154,854
Foreign currency translation |  |  |  |  | 322
Balance at Sep. 30, 2023 | $ 21,623 |  | 978,496 | (2,363) | $ 997,756
Balance (in shares) at Sep. 30, 2023 | 216,228,000 |  |  |  | 216,228,372
Balance at Mar. 31, 2023 | $ 21,637 |  | 909,335 | (3,277) | $ 927,695
Balance (in shares) at Mar. 31, 2023 | 216,370,000 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Stock issued for stock incentive plans, net | $ 4 | 2,312 |  |  | 2,316
Stock issued for stock incentive plans, net (in shares) | 40,000 |  |  |  |
Stock purchased and retired |  | (2,312) | 2,310 |  | (2)
Stock purchased and retired (in shares) | (1,000) |  |  |  |
Net income |  |  | 65,013 |  | 65,013
Dividends |  |  | (8,635) |  | (8,635)
Pension adjustment, net of taxes |  |  |  | 576 | 576
Foreign currency translation |  |  |  | 439 | 439
Balance at Jun. 30, 2023 | $ 21,641 |  | 968,023 | (2,262) | 987,402
Balance (in shares) at Jun. 30, 2023 | 216,409,000 |  |  |  |
Increase (Decrease) in Stockholders' Equity |  |  |  |  |
Stock issued for stock incentive plans, net | $ (4) | 1,919 |  |  | 1,915
Stock issued for stock incentive plans, net (in shares) | (44,000) |  |  |  |
Stock purchased and retired | $ (14) | $ (1,919) | 790 |  | (1,143)
Stock purchased and retired (in shares) | (137,000) |  |  |  |
Net income |  |  | 18,317 |  | 18,317
Dividends |  |  | (8,634) |  | (8,634)
Foreign currency translation |  |  |  | (101) | (101)
Balance at Sep. 30, 2023 | $ 21,623 |  | $ 978,496 | $ (2,363) | $ 997,756
Balance (in shares) at Sep. 30, 2023 | 216,228,000 |  |  |  | 216,228,372

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