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CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Additional Paid-In Capital | Accumulated (Deficit) Earnings | Accumulated Other Comprehensive Income
--- | --- | --- | --- | --- | ---
Balance at period start (in shares) at Dec. 31, 2022 |  | 60,471 |  |  |
Balance at period start at Dec. 31, 2022 | $ 644,537 | $ 604 | $ 836,491 | $ (200,687) | $ 8,129
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stock-based compensation (in shares) |  | 340 |  |  |
Stock-based compensation | 2,317 |  | 2,317 |  |
Purchase of common stock for retirement (in shares) |  | (81) |  |  |
Purchase of common stock for retirement | (3,114) |  | (3,114) |  |
Exercise of stock options (in shares) |  | 300 |  |  |
Exercise of stock options | 6,374 | $ 6 | 6,368 |  |
Other comprehensive loss | (11) |  |  |  | (11)
Net income (loss) | 237,890 |  |  | 237,890 |
Balance at period end (in shares) at Mar. 31, 2023 |  | 61,030 |  |  |
Balance at period end at Mar. 31, 2023 | 887,993 | $ 610 | 842,062 | 37,203 | 8,118
Balance at period start (in shares) at Dec. 31, 2022 |  | 60,471 |  |  |
Balance at period start at Dec. 31, 2022 | 644,537 | $ 604 | 836,491 | (200,687) | 8,129
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income (loss) | 439,318 |  |  |  |
Balance at period end (in shares) at Sep. 30, 2023 |  | 60,518 |  |  |
Balance at period end at Sep. 30, 2023 | 1,071,259 | $ 605 | 853,835 | 208,724 | 8,095
Balance at period start (in shares) at Mar. 31, 2023 |  | 61,030 |  |  |
Balance at period start at Mar. 31, 2023 | 887,993 | $ 610 | 842,062 | 37,203 | 8,118
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stock-based compensation (in shares) |  | 115 |  |  |
Stock-based compensation | 3,656 | $ 1 | 3,655 |  |
Issuance of common stock for employee stock purchase plan (in shares) |  | 27 |  |  |
Issuance of common stock for employee stock purchase plan | 726 |  | 726 |  |
Purchase of common stock for retirement (in shares) |  | (128) |  |  |
Purchase of common stock for retirement | (3,066) | $ (1) | (464) | (2,601) |
Other comprehensive loss | (11) |  |  |  | (11)
Net income (loss) | 30,013 |  |  | 30,013 |
Balance at period end (in shares) at Jun. 30, 2023 |  | 61,044 |  |  |
Balance at period end at Jun. 30, 2023 | 919,311 | $ 610 | 845,979 | 64,615 | 8,107
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stock-based compensation (in shares) |  | 7 |  |  |
Stock-based compensation | 2,874 | $ 3 | 2,871 |  |
Purchase of common stock for retirement (in shares) |  | (784) |  |  |
Purchase of common stock for retirement | (28,969) | $ (8) | (1,655) | (27,306) |
Exercise of stock options (in shares) |  | 251 |  |  |
Exercise of stock options | 6,640 |  | 6,640 |  |
Other comprehensive loss | (12) |  |  |  | (12)
Net income (loss) | 171,415 |  |  | 171,415 |
Balance at period end (in shares) at Sep. 30, 2023 |  | 60,518 |  |  |
Balance at period end at Sep. 30, 2023 | 1,071,259 | $ 605 | 853,835 | 208,724 | 8,095
Balance at period start (in shares) at Dec. 31, 2023 |  | 59,756 |  |  |
Balance at period start at Dec. 31, 2023 | 1,335,424 | $ 597 | 860,797 | 465,856 | 8,174
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stock-based compensation (in shares) |  | 327 |  |  |
Stock-based compensation | 16,410 | $ 2 | 16,408 |  |
Purchase of common stock for retirement (in shares) |  | (1,013) |  |  |
Purchase of common stock for retirement | (36,690) | $ (9) | (4,251) | (32,430) |
Other comprehensive loss | (54) |  |  |  | (54)
Net income (loss) | (3,751) |  |  | (3,751) |
Balance at period end (in shares) at Mar. 31, 2024 |  | 59,070 |  |  |
Balance at period end at Mar. 31, 2024 | 1,311,339 | $ 590 | 872,954 | 429,675 | 8,120
Balance at period start (in shares) at Dec. 31, 2023 |  | 59,756 |  |  |
Balance at period start at Dec. 31, 2023 | 1,335,424 | $ 597 | 860,797 | 465,856 | 8,174
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Net income (loss) | 22,373 |  |  |  |
Balance at period end (in shares) at Sep. 30, 2024 |  | 55,987 |  |  |
Balance at period end at Sep. 30, 2024 | 1,254,026 | $ 559 | 878,789 | 366,667 | 8,011
Balance at period start (in shares) at Mar. 31, 2024 |  | 59,070 |  |  |
Balance at period start at Mar. 31, 2024 | 1,311,339 | $ 590 | 872,954 | 429,675 | 8,120
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stock-based compensation (in shares) |  | 37 |  |  |
Stock-based compensation | 2,881 |  | 2,881 |  |
Issuance of common stock for employee stock purchase plan (in shares) |  | 56 |  |  |
Issuance of common stock for employee stock purchase plan | 1,409 |  | 1,409 |  |
Purchase of common stock for retirement (in shares) |  | (2,254) |  |  |
Purchase of common stock for retirement | (68,432) | $ (22) | (1,376) | (67,034) |
Other comprehensive loss | (55) |  |  |  | (55)
Net income (loss) | 18,638 |  |  | 18,638 |
Balance at period end (in shares) at Jun. 30, 2024 |  | 56,909 |  |  |
Balance at period end at Jun. 30, 2024 | 1,265,780 | $ 568 | 875,868 | 381,279 | 8,065
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Stock-based compensation (in shares) |  | 11 |  |  |
Stock-based compensation | 2,983 |  | 2,983 |  |
Purchase of common stock for retirement (in shares) |  | (933) |  |  |
Purchase of common stock for retirement | (22,169) | $ (9) | (62) | (22,098) |
Other comprehensive loss | (54) |  |  |  | (54)
Net income (loss) | 7,486 |  |  | 7,486 |
Balance at period end (in shares) at Sep. 30, 2024 |  | 55,987 |  |  |
Balance at period end at Sep. 30, 2024 | $ 1,254,026 | $ 559 | $ 878,789 | $ 366,667 | $ 8,011

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