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Consolidated Statements of Stockholders' Equity - (Unaudited) - USD ($) | Total | Common Stock [Member] | Paid-in Capital [Member] | Treasury Stock [Member] | Retained Earnings [Member]
--- | --- | --- | --- | --- | ---
Beginning balance at Mar. 31, 2024 | $ 247,647,000 | $ 3,000 | $ 233,629,000 | $ (793,905,000) | $ 807,920,000
Beginning balance, shares at Mar. 31, 2024 |  |  |  | (114,099,537) |
Shares, Outstanding, Beginning Balance at Mar. 31, 2024 |  | 165,486,225 |  |  |
Stock issued under employee stock purchase plan | 342,000 | $ 0 | 342,000 | $ 0 | 0
Stock issued under employee stock purchase plan, shares |  | 3,306 |  | 0 |
Stock issued under stock option plan, net of shares repurchased | 6,371,000 | $ 0 | 6,371,000 | $ 0 | 0
Stock issued under stock option plan, net of shares repurchased, shares |  | 226,269 |  | 0 |
Stock-based compensation expense | 2,552,000 | $ 0 | 2,552,000 | $ 0 | 0
Purchase of treasury stock | (19,115,000) | $ 0 | 0 | $ (19,115,000) | 0
Purchase of treasury stock, shares |  | 0 |  | (210,783) |
Net Income (Loss) | 44,975,000 | $ 0 | 0 | $ 0 | 44,975,000
Ending balance at Sep. 30, 2024 | 282,772,000 | $ 3,000 | 242,894,000 | $ (813,020,000) | 852,895,000
Shares, Outstanding, Ending Balance at Sep. 30, 2024 |  | 165,715,800 |  |  |
Ending balance, shares at Sep. 30, 2024 |  |  |  | (114,310,320) |
Beginning balance at Jun. 30, 2024 | 263,873,000 | $ 3,000 | 237,804,000 | $ (803,431,000) | 829,497,000
Beginning balance, shares at Jun. 30, 2024 |  |  |  | (114,213,951) |
Shares, Outstanding, Beginning Balance at Jun. 30, 2024 |  | 165,584,634 |  |  |
Stock issued under employee stock purchase plan | 342,000 | $ 0 | 342,000 | $ 0 | 0
Stock issued under employee stock purchase plan, shares |  | 3,306 |  | 0 |
Stock issued under stock option plan, net of shares repurchased | 3,266,000 | $ 0 | 3,266,000 | $ 0 | 0
Stock issued under stock option plan, net of shares repurchased, shares |  | 127,860 |  | 0 |
Stock-based compensation expense | 1,482,000 | $ 0 | 1,482,000 | $ 0 | 0
Purchase of treasury stock | (9,589,000) | $ 0 | 0 | $ (9,589,000) | 0
Purchase of treasury stock, shares |  | 0 |  | (96,369) |
Net Income (Loss) | 23,398,000 | $ 0 | 0 | $ 0 | 23,398,000
Ending balance at Sep. 30, 2024 | 282,772,000 | $ 3,000 | 242,894,000 | $ (813,020,000) | 852,895,000
Shares, Outstanding, Ending Balance at Sep. 30, 2024 |  | 165,715,800 |  |  |
Ending balance, shares at Sep. 30, 2024 |  |  |  | (114,310,320) |
Beginning balance at Mar. 31, 2025 | $ 321,987,000 | $ 5,000 | 250,407,000 | $ (831,510,000) | 903,085,000
Beginning balance, shares at Mar. 31, 2025 | 114,476,691 |  |  | (114,476,691) |
Shares, Outstanding, Beginning Balance at Mar. 31, 2025 |  | 165,836,235 |  |  |
Stock issued under employee stock purchase plan | $ 418,000 | $ 0 | 418,000 | $ 0 | 0
Stock issued under employee stock purchase plan, shares |  | 5,682 |  | 0 |
Stock issued under stock option plan, net of shares repurchased | 4,087,000 | $ 0 | 4,087,000 | $ 0 | 0
Stock issued under stock option plan, net of shares repurchased, shares |  | 151,416 |  | 0 |
Stock-based compensation expense | 2,815,000 | $ 0 | 2,815,000 | $ 0 | 0
Stock Issued During Period, Shares, Acquisitions |  | 7,611 |  |  |
Stock Issued During Period, Value, Acquisitions | 784,000 |  | 784,000 |  |
Purchase of treasury stock | $ (22,455,000) | $ 0 | 0 | $ (22,455,000) | 0
Purchase of treasury stock, shares | (230,879) | 0 |  | (230,879) |
Net Income (Loss) | $ 55,141,000 | $ 0 | 0 | $ 0 | 55,141,000
Ending balance at Sep. 30, 2025 | $ 362,777,000 | $ 5,000 | 258,511,000 | $ (853,965,000) | 958,226,000
Shares, Outstanding, Ending Balance at Sep. 30, 2025 |  | 166,000,944 |  |  |
Ending balance, shares at Sep. 30, 2025 | 114,707,570 |  |  | (114,707,570) |
Beginning balance at Jun. 30, 2025 | $ 342,532,000 | $ 5,000 | 253,334,000 | $ (841,127,000) | 930,320,000
Beginning balance, shares at Jun. 30, 2025 |  |  |  | (114,563,796) |
Shares, Outstanding, Beginning Balance at Jun. 30, 2025 |  | 165,889,159 |  |  |
Stock issued under employee stock purchase plan | 418,000 | $ 0 | 418,000 | $ 0 | 0
Stock issued under employee stock purchase plan, shares |  | 5,682 |  | 0 |
Stock issued under stock option plan, net of shares repurchased | 2,577,000 | $ 0 | 2,577,000 | $ 0 | 0
Stock issued under stock option plan, net of shares repurchased, shares |  | 98,492 |  | 0 |
Stock-based compensation expense | 1,398,000 | $ 0 | 1,398,000 | $ 0 | 0
Stock Issued During Period, Shares, Acquisitions |  | 7,611 |  |  |
Stock Issued During Period, Value, Acquisitions | 784,000 |  | 784,000 |  |
Purchase of treasury stock | $ (12,838,000) | $ 0 | 0 | $ (12,838,000) | 0
Purchase of treasury stock, shares | (143,774) | 0 |  | (143,774) |
Net Income (Loss) | $ 27,906,000 | $ 0 | 0 | $ 0 | 27,906,000
Ending balance at Sep. 30, 2025 | $ 362,777,000 | $ 5,000 | $ 258,511,000 | $ (853,965,000) | $ 958,226,000
Shares, Outstanding, Ending Balance at Sep. 30, 2025 |  | 166,000,944 |  |  |
Ending balance, shares at Sep. 30, 2025 | 114,707,570 |  |  | (114,707,570) |

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