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Capital Stock - Schedule of Common Stock Activity (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Common Stock |  |  |  |
Common Stock Activity [Roll Forward] |  |  |  |
Beginning balance | $ 294,364 | $ 267,645 | $ 281,980 | $ 260,121
Stock compensation expense | 8,477 | 2,967 | 21,506 | 11,325
Ending balance | 303,417 | 273,010 | 303,417 | 273,010
Treasury Cost |  |  |  |
Common Stock Activity [Roll Forward] |  |  |  |
Beginning balance | (362,025) | (359,314) | (359,838) | (328,776)
Stock compensation expense | 0 | 0 | 0 | 0
Ending balance | (361,773) | (360,056) | (361,773) | (360,056)
Restricted and performance stock awards | Common Stock |  |  |  |
Common Stock Activity [Roll Forward] |  |  |  |
Restricted and performance stock awards | (15) | (103) | (1,449) | (1,564)
Restricted and performance stock awards | Treasury Cost |  |  |  |
Common Stock Activity [Roll Forward] |  |  |  |
Restricted and performance stock awards | 15 | 103 | 1,449 | 1,564
Stock options exercised | Common Stock |  |  |  |
Common Stock Activity [Roll Forward] |  |  |  |
Stock compensation expense | 591 | 2,501 | 948 | 2,704
Stock options exercised | Treasury Cost |  |  |  |
Common Stock Activity [Roll Forward] |  |  |  |
Stock compensation expense | 307 | 1,364 | 492 | 1,459
Treasury shares purchased for stock compensation programs | Common Stock |  |  |  |
Common Stock Activity [Roll Forward] |  |  |  |
Treasury shares purchased for stock compensation programs | 0 | 0 | 0 | 0
Treasury shares purchased for stock compensation programs | Treasury Cost |  |  |  |
Common Stock Activity [Roll Forward] |  |  |  |
Treasury shares purchased for stock compensation programs | (70) | (59) | (3,941) | (3,990)
Employee stock purchase program | Common Stock |  |  |  |
Common Stock Activity [Roll Forward] |  |  |  |
Stock compensation expense |  |  | 432 | 424
Employee stock purchase program | Treasury Cost |  |  |  |
Common Stock Activity [Roll Forward] |  |  |  |
Stock compensation expense |  |  | 65 | 62
Share repurchase program | Common Stock |  |  |  |
Common Stock Activity [Roll Forward] |  |  |  |
Stock compensation expense | 0 | 0 | 0 | 0
Share repurchase program | Treasury Cost |  |  |  |
Common Stock Activity [Roll Forward] |  |  |  |
Stock compensation expense | $ 0 | $ (2,150) | $ 0 | $ (30,375)

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