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CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Paid-in Capital | Retained Earnings (Accumulated Deficit)
--- | --- | --- | --- | ---
Beginning balance (in shares) at Sep. 30, 2022 |  | 30,880 |  |
Beginning balance at Sep. 30, 2022 | $ 939,286 | $ 31 | $ 859,856 | $ 79,399
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Net income and comprehensive income | 24,331 |  |  | 24,331
Stock-based compensation expense | 1,580 |  | 1,580 |
Shares issued under employee stock plans, net (in shares) |  | 672 |  |
Common stock redeemed for tax liability (in shares) |  | (205) |  |
Common stock redeemed for tax liability | (2,597) |  | (2,597) |
Ending balance (in shares) at Dec. 31, 2022 |  | 31,347 |  |
Ending balance at Dec. 31, 2022 | 962,600 | $ 31 | 858,839 | 103,730
Beginning balance (in shares) at Sep. 30, 2023 |  | 31,351 |  |
Beginning balance at Sep. 30, 2023 | 1,102,819 | $ 31 | 864,778 | 238,010
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |
Net income and comprehensive income | 21,728 |  |  | 21,728
Stock-based compensation expense | 1,673 |  | 1,673 |
Shares issued under employee stock plans, net (in shares) |  | 362 |  |
Shares issued under employee stock plans, net | 1 | $ 1 |  |
Forfeiture and other settlements of restricted stock (in shares) |  | (8) |  |
Common stock redeemed for tax liability (in shares) |  | (172) |  |
Common stock redeemed for tax liability | (5,210) |  | (5,210) |
Ending balance (in shares) at Dec. 31, 2023 |  | 31,533 |  |
Ending balance at Dec. 31, 2023 | $ 1,121,011 | $ 32 | $ 861,241 | $ 259,738

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