Condensed Consolidated Statement of Changes in Shareholders' Equity Statement - USD ($)
|
Total |
Common shares |
Treasury Stock, Common |
Additional paid-in capital |
Retained earnings |
Accumulated other comprehensive loss |
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| Treasury Stock, Common, Shares |
|
|
(16,300,000)
|
|
|
|
| Common shares, issued (in shares) |
|
65,200,000
|
|
|
|
|
| Beginning shareholders' equity at Sep. 30, 2024 |
$ 1,584,100,000
|
$ 700,000
|
$ (937,900,000)
|
$ 1,586,000,000
|
$ 1,090,100,000
|
$ (154,800,000)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| Net (loss) income |
(2,100,000)
|
|
|
|
(2,100,000)
|
|
| Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax |
(48,300,000)
|
|
|
|
|
(48,300,000)
|
| Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax |
400,000
|
|
|
|
|
400,000
|
| Deferred gain (loss) on hedging activity, net of tax |
5,000,000.0
|
|
|
|
|
5,000,000.0
|
| Dividends declared to common shareholders |
(7,100,000)
|
|
|
|
(7,100,000)
|
|
| Treasury shares repurchased (in usd) |
(30,100,000)
|
|
$ (30,100,000)
|
|
|
|
| Treasury shares repurchased (in shares) |
|
|
(800,000)
|
|
|
|
| Activity under share plans (shares) |
|
|
300,000
|
|
|
|
| Activity under share plans (in usd) |
(900,000)
|
|
$ 23,300,000
|
|
|
|
| APIC activity under share plans |
|
|
|
(24,200,000)
|
|
|
| Ending shareholders' equity at Dec. 31, 2024 |
1,501,000,000
|
700,000
|
(944,700,000)
|
1,561,800,000
|
1,080,900,000
|
(197,700,000)
|
| Beginning shareholders' equity at Sep. 30, 2024 |
1,584,100,000
|
700,000
|
(937,900,000)
|
1,586,000,000
|
1,090,100,000
|
(154,800,000)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| Net (loss) income |
26,900,000
|
|
|
|
|
|
| Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax |
(25,300,000)
|
|
|
|
|
|
| Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax |
700,000
|
|
|
|
|
|
| Deferred gain (loss) on hedging activity, net of tax |
2,200,000
|
|
|
|
|
|
| Ending shareholders' equity at Mar. 31, 2025 |
1,513,900,000
|
$ 700,000
|
$ (979,200,000)
|
1,567,300,000
|
1,102,300,000
|
(177,200,000)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| Treasury Stock, Common, Shares |
|
|
(16,800,000)
|
|
|
|
| Common shares, issued (in shares) |
|
65,200,000
|
|
|
|
|
| Beginning shareholders' equity at Dec. 31, 2024 |
1,501,000,000
|
$ 700,000
|
$ (944,700,000)
|
1,561,800,000
|
1,080,900,000
|
(197,700,000)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| Net (loss) income |
29,000,000.0
|
|
|
|
29,000,000.0
|
|
| Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax |
23,000,000.0
|
|
|
|
|
23,000,000.0
|
| Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax |
300,000
|
|
|
|
|
300,000
|
| Deferred gain (loss) on hedging activity, net of tax |
(2,800,000)
|
|
|
|
|
(2,800,000)
|
| Dividends declared to common shareholders |
(7,600,000)
|
|
|
|
(7,600,000)
|
|
| Treasury shares repurchased (in usd) |
(35,200,000)
|
|
$ (35,200,000)
|
|
|
|
| Treasury shares repurchased (in shares) |
|
|
(1,100,000)
|
|
|
|
| Activity under share plans (shares) |
|
|
0
|
|
|
|
| Activity under share plans (in usd) |
6,200,000
|
|
$ 700,000
|
|
|
|
| APIC activity under share plans |
|
|
|
5,500,000
|
|
|
| Ending shareholders' equity at Mar. 31, 2025 |
$ 1,513,900,000
|
$ 700,000
|
$ (979,200,000)
|
1,567,300,000
|
1,102,300,000
|
(177,200,000)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| Treasury Stock, Common, Shares |
|
|
(17,900,000)
|
|
|
|
| Common shares, issued (in shares) |
|
65,200,000
|
|
|
|
|
| Treasury Stock, Common, Shares |
18,787,745
|
|
(18,800,000)
|
|
|
|
| Common shares, issued (in shares) |
65,251,989
|
65,200,000
|
|
|
|
|
| Beginning shareholders' equity at Sep. 30, 2025 |
$ 1,553,100,000
|
$ 700,000
|
$ (1,003,300,000)
|
1,578,800,000
|
1,086,700,000
|
(109,800,000)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| Net (loss) income |
(65,700,000)
|
|
|
|
65,700,000
|
|
| Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax |
3,200,000
|
|
|
|
|
3,200,000
|
| Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax |
600,000
|
|
|
|
|
600,000
|
| Deferred gain (loss) on hedging activity, net of tax |
1,500,000
|
|
|
|
|
1,500,000
|
| Dividends declared to common shareholders |
(7,000,000.0)
|
|
|
|
(7,000,000.0)
|
|
| Treasury shares repurchased (in usd) |
0
|
|
$ 0
|
|
|
|
| Treasury shares repurchased (in shares) |
|
|
0
|
|
|
|
| Stock Issued During Period, Shares, Period Increase (Decrease) |
500,000
|
|
|
|
|
|
| Activity under share plans (shares) |
|
|
300,000
|
|
|
|
| Activity under share plans (in usd) |
|
|
$ 18,700,000
|
|
|
|
| APIC activity under share plans |
|
|
|
(18,200,000)
|
|
|
| Ending shareholders' equity at Dec. 31, 2025 |
1,486,200,000
|
700,000
|
(984,600,000)
|
1,560,600,000
|
1,014,000,000
|
(104,500,000)
|
| Beginning shareholders' equity at Sep. 30, 2025 |
1,553,100,000
|
700,000
|
(1,003,300,000)
|
1,578,800,000
|
1,086,700,000
|
(109,800,000)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| Net (loss) income |
(76,300,000)
|
|
|
|
|
|
| Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax |
(8,800,000)
|
|
|
|
|
|
| Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax |
900,000
|
|
|
|
|
|
| Deferred gain (loss) on hedging activity, net of tax |
2,700,000
|
|
|
|
|
|
| Treasury shares repurchased (in usd) |
$ (15,100,000)
|
|
|
|
|
|
| Treasury shares repurchased (in shares) |
(700,000)
|
|
|
|
|
|
| Ending shareholders' equity at Mar. 31, 2026 |
$ 1,448,100,000
|
$ 700,000
|
$ (997,800,000)
|
1,564,400,000
|
995,800,000
|
(115,000,000.0)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| Treasury Stock, Common, Shares |
|
|
(18,500,000)
|
|
|
|
| Common shares, issued (in shares) |
|
65,200,000
|
|
|
|
|
| Beginning shareholders' equity at Dec. 31, 2025 |
1,486,200,000
|
$ 700,000
|
$ (984,600,000)
|
1,560,600,000
|
1,014,000,000
|
(104,500,000)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| Net (loss) income |
(10,600,000)
|
|
|
|
(10,600,000)
|
|
| Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax |
(12,000,000.0)
|
|
|
|
|
(12,000,000.0)
|
| Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax |
300,000
|
|
|
|
|
300,000
|
| Deferred gain (loss) on hedging activity, net of tax |
1,200,000
|
|
|
|
|
1,200,000
|
| Dividends declared to common shareholders |
(7,600,000)
|
|
|
|
(7,600,000)
|
|
| Treasury shares repurchased (in usd) |
(15,100,000)
|
|
$ (15,100,000)
|
|
|
|
| Treasury shares repurchased (in shares) |
|
|
(700,000)
|
|
|
|
| Activity under share plans (shares) |
|
|
0
|
|
|
|
| Activity under share plans (in usd) |
5,700,000
|
|
$ 1,900,000
|
|
|
|
| APIC activity under share plans |
|
|
|
3,800,000
|
|
|
| Ending shareholders' equity at Mar. 31, 2026 |
$ 1,448,100,000
|
$ 700,000
|
$ (997,800,000)
|
$ 1,564,400,000
|
$ 995,800,000
|
$ (115,000,000.0)
|
| Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
| Treasury Stock, Common, Shares |
19,175,125
|
|
(19,200,000)
|
|
|
|
| Common shares, issued (in shares) |
65,251,989
|
65,200,000
|
|
|
|
|