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v3.25.1

Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) - USD ($) $ in Thousands | Open Market Repurchases [Member] Common Stock Outstanding [Member] | Open Market Repurchases [Member] Additional Paid-in Capital [Member] | Open Market Repurchases [Member] AOCI Attributable to Parent [Member] | Open Market Repurchases [Member] Retained Earnings [Member] | Open Market Repurchases [Member] Treasury Stock, Common [Member] | Open Market Repurchases [Member] | Common Stock Outstanding [Member] | Additional Paid-in Capital [Member] | AOCI Attributable to Parent [Member] | Retained Earnings [Member] | Treasury Stock, Common [Member] | Total
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Balance (in shares) at Sep. 30, 2023 |  |  |  |  |  |  | 71,294,247 |  |  |  |  |
Balance at Sep. 30, 2023 |  |  |  |  |  |  | $ 713 | $ 1,156,160 | $ (62,426) | $ 1,641,009 | $ (200,956) | $ 2,534,500
Shares issued under restricted stock and purchase plans, net of shares withheld for employee taxes (in shares) |  |  |  |  |  |  | 217,947 |  |  |  |  |
Shares issued under restricted stock and purchase plans, net of shares withheld for employee taxes |  |  |  |  |  |  | $ 3 | (3) | 0 | 0 | 0 | 0
Stock-based compensation |  |  |  |  |  |  | 0 | 8,804 | 0 | 0 | 0 | 8,804
Net loss |  |  |  |  |  |  | 0 | 0 | 0 | (152,604) | 0 | (152,604)
Net investment hedge currency translation adjustment, net of tax |  |  |  |  |  |  | 0 | 0 | (8,288) |  | 0 | (8,288)
Foreign currency translation adjustments |  |  |  |  |  |  | 0 | 0 | 25,725 | 0 | 0 | 25,725
Changes in unrealized losses on marketable securities, net of tax |  |  |  |  |  |  | 0 | 0 | 3,276 | 0 | 0 | 3,276
Actuarial loss on pension plans, net of tax |  |  |  |  |  |  | $ 0 | 0 | (15) | 0 | 0 | (15)
Balance (in shares) at Mar. 31, 2024 |  |  |  |  |  |  | 68,075,910 |  |  |  |  |
Balance at Mar. 31, 2024 |  |  |  |  |  |  | $ 681 | 999,333 | (41,728) | 1,488,405 | (223,820) | 2,222,871
Shares repurchases (in shares) | (3,436,284) |  |  |  |  |  |  |  |  |  |  |
Share repurchases |  | $ 0 | $ 0 | $ 0 | $ (188,515) | $ (188,527) |  |  |  |  |  |
Retirement of treasury shares |  |  |  |  |  |  | (23) | (165,628) | 0 | 0 | 165,651 | 0
Net loss |  |  |  |  |  |  | $ 0 | 0 | 0 | (152,604) | 0 | (152,604)
Balance (in shares) at Dec. 31, 2023 |  |  |  |  |  |  | 69,180,281 |  |  |  |  |
Balance at Dec. 31, 2023 |  |  |  |  |  |  | $ 692 | 1,045,427 | (26,784) | 1,625,285 | (200,956) | 2,443,664
Shares issued under restricted stock and purchase plans, net of shares withheld for employee taxes (in shares) |  |  |  |  |  |  | 73,053 |  |  |  |  |
Shares issued under restricted stock and purchase plans, net of shares withheld for employee taxes |  |  |  |  |  |  | $ 1 | (1) | 0 | 0 | 0 | 0
Stock-based compensation |  |  |  |  |  |  | 0 | 5,602 | 0 | 0 | 0 | 5,602
Net loss |  |  |  |  |  |  | 0 | 0 | 0 | (136,880) | 0 | (136,880)
Net investment hedge currency translation adjustment, net of tax |  |  |  |  |  |  | 0 | 0 | 5,080 | 0 | 0 | 5,080
Foreign currency translation adjustments |  |  |  |  |  |  | 0 | 0 | (20,769) | 0 | 0 | (20,769)
Changes in unrealized losses on marketable securities, net of tax |  |  |  |  |  |  | 0 | 0 | 752 | 0 | 0 | 752
Actuarial loss on pension plans, net of tax |  |  |  |  |  |  | $ 0 | 0 | (7) | 0 | 0 | (7)
Balance (in shares) at Mar. 31, 2024 |  |  |  |  |  |  | 68,075,910 |  |  |  |  |
Balance at Mar. 31, 2024 |  |  |  |  |  |  | $ 681 | 999,333 | (41,728) | 1,488,405 | (223,820) | 2,222,871
Shares repurchases (in shares) | (1,177,424) |  |  |  |  |  |  |  |  |  |  |
Share repurchases |  | $ 0 | $ 0 | $ 0 | $ (74,559) | $ (74,571) |  |  |  |  |  |
Retirement of treasury shares |  |  |  |  |  |  | 0 | (51,695) | 0 | 0 | 51,695 | 0
Net loss |  |  |  |  |  |  | $ 0 | 0 | 0 | (136,880) | 0 | (136,880)
Balance (in shares) at Sep. 30, 2024 |  |  |  |  |  |  | 59,031,953 |  |  |  |  |
Balance at Sep. 30, 2024 |  |  |  |  |  |  | $ 590 | 505,958 | (13,464) | 1,476,839 | (200,956) | 1,768,967
Shares issued under restricted stock and purchase plans, net of shares withheld for employee taxes (in shares) |  |  |  |  |  |  | 205,934 |  |  |  |  |
Shares issued under restricted stock and purchase plans, net of shares withheld for employee taxes |  |  |  |  |  |  | $ 3 | 1,550 | 0 | 0 | 0 | 1,553
Stock-based compensation |  |  |  |  |  |  | 0 | 13,453 | 0 | 0 | 0 | 13,453
Net loss |  |  |  |  |  |  | 0 | 0 | 0 | (53,796) | 0 | (53,796)
Net investment hedge currency translation adjustment, net of tax |  |  |  |  |  |  | 0 | 0 | (5,088) | 0 | 0 | (5,088)
Foreign currency translation adjustments |  |  |  |  |  |  | 0 | 0 | (23,860) | 0 | 0 | (23,860)
Changes in unrealized losses on marketable securities, net of tax |  |  |  |  |  |  | 0 | 0 | 363 | 0 | 0 | 363
Actuarial loss on pension plans, net of tax |  |  |  |  |  |  | $ 0 | 0 | (100) | 0 | 0 | (100)
Balance (in shares) at Mar. 31, 2025 |  |  |  |  |  |  | 59,237,887 |  |  |  |  |
Balance at Mar. 31, 2025 |  |  |  |  |  |  | $ 593 | 520,961 | (42,149) | 1,423,043 | (200,956) | 1,701,492
Net loss |  |  |  |  |  |  | $ 0 | 0 | 0 | (53,796) | 0 | (53,796)
Balance (in shares) at Dec. 31, 2024 |  |  |  |  |  |  | 59,153,757 |  |  |  |  |
Balance at Dec. 31, 2024 |  |  |  |  |  |  | $ 592 | 511,068 | (55,237) | 1,463,499 | (200,956) | 1,718,966
Shares issued under restricted stock and purchase plans, net of shares withheld for employee taxes (in shares) |  |  |  |  |  |  | 84,130 |  |  |  |  |
Shares issued under restricted stock and purchase plans, net of shares withheld for employee taxes |  |  |  |  |  |  | $ 1 | 1,552 | 0 | 0 | 0 | 1,553
Stock-based compensation |  |  |  |  |  |  | 0 | 8,341 | 0 | 0 | 0 | 8,341
Net loss |  |  |  |  |  |  | 0 | 0 | 0 | (40,456) | 0 | (40,456)
Net investment hedge currency translation adjustment, net of tax |  |  |  |  |  |  | 0 | 0 | (10,500) | 0 | 0 | (10,500)
Foreign currency translation adjustments |  |  |  |  |  |  | 0 | 0 | 23,438 | 0 | 0 | 23,438
Changes in unrealized losses on marketable securities, net of tax |  |  |  |  |  |  | 0 | 0 | 200 | 0 | 0 | 200
Actuarial loss on pension plans, net of tax |  |  |  |  |  |  | $ 0 | 0 | (50) | 0 | 0 | (50)
Balance (in shares) at Mar. 31, 2025 |  |  |  |  |  |  | 59,237,887 |  |  |  |  |
Balance at Mar. 31, 2025 |  |  |  |  |  |  | $ 593 | 520,961 | (42,149) | 1,423,043 | (200,956) | 1,701,492
Net loss |  |  |  |  |  |  | $ 0 | $ 0 | $ 0 | $ (40,456) | $ 0 | $ (40,456)

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