Condensed Consolidated Statement of Changes in Shareholders' Equity Statement - USD ($) $ in Millions | Total | Reclassification out of Accumulated Other Comprehensive Income | Other expense (income), net Reclassification out of Accumulated Other Comprehensive Income | 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 | | | | | (13,700,000) | | | |
Common shares, issued (in shares) | | | | 65,200,000 | | | | |
Treasury Stock, Common, Shares | | | | | (13,700,000) | | | |
Beginning shareholders' equity at Sep. 30, 2022 | $ 1,467.1 | | | $ 0.7 | $ (860.9) | $ 1,604.3 | $ 939.1 | $ (216.1) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | |
Net earnings | 12.4 | | | | | | 12.4 | |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | 48 | | | | | | | 48 |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax | (0.2) | | | | | | | (0.2) |
Deferred gain (loss) on hedging activity, net of tax | (8.2) | | | | | | | (8.2) |
Dividends declared to common shareholders | (8) | | | | | | (8) | |
Treasury shares repurchased (in usd) | (15) | | | | $ (15) | | | |
Treasury shares repurchased (in shares) | | | | | (400,000) | | | |
Activity under share plans (shares) | | | | | 400,000 | | | |
Activity under share plans (in usd) | (1.5) | | | | $ 25 | | | |
APIC activity under share plans | | | | | | (26.5) | | |
Ending shareholders' equity at Dec. 31, 2022 | 1,494.6 | | | 0.7 | (850.9) | 1,577.8 | 943.5 | (176.5) |
Beginning shareholders' equity at Sep. 30, 2022 | 1,467.1 | | | 0.7 | (860.9) | 1,604.3 | 939.1 | (216.1) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | |
Net earnings | 84.8 | | | | | | | |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | 67.6 | | | | | | | |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax | 3.9 | | | | | | | |
Deferred gain (loss) on hedging activity, net of tax | (6.2) | | | | | | | |
Ending shareholders' equity at Jun. 30, 2023 | 1,559.9 | | | $ 0.7 | $ (876.3) | 1,586.3 | 1,000 | (150.8) |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | | | | | | | | |
OCI Cash flow hedges reclass to earnings, before tax | | | $ 6.8 | | | | | |
Treasury Stock, Common, Shares | | | | | (13,700,000) | | | |
Common shares, issued (in shares) | | | | 65,200,000 | | | | |
Treasury Stock, Common, Shares | | | | | (13,700,000) | | | |
Beginning shareholders' equity at Dec. 31, 2022 | 1,494.6 | | | $ 0.7 | $ (850.9) | 1,577.8 | 943.5 | (176.5) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | |
Net earnings | 19.4 | | | | | | 19.4 | |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | 12.1 | | | | | | | 12.1 |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax | 4.5 | | | | | | | 4.5 |
Deferred gain (loss) on hedging activity, net of tax | 0.2 | | | | | | | 0.2 |
Dividends declared to common shareholders | (8.2) | | | | | | (8.2) | |
Treasury shares repurchased (in usd) | (15) | | | | $ (15) | | | |
Treasury shares repurchased (in shares) | | | | | (400,000) | | | |
Activity under share plans (shares) | | | | | 0 | | | |
Activity under share plans (in usd) | 7.7 | | | | $ 2.3 | | | |
APIC activity under share plans | | | | | | 5.4 | | |
Ending shareholders' equity at Mar. 31, 2023 | 1,515.3 | | | $ 0.7 | $ (863.6) | 1,583.2 | 954.7 | (159.7) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | |
Treasury Stock, Common, Shares | | | | | (14,100,000) | | | |
Common shares, issued (in shares) | | | | 65,200,000 | | | | |
Treasury Stock, Common, Shares | | | | | (14,100,000) | | | |
Net earnings | 53 | | | | | | 53 | |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | 7.5 | | | | | | | 7.5 |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax | (0.4) | | | | | | | (0.4) |
Deferred gain (loss) on hedging activity, net of tax | 1.8 | | | | | | | 1.8 |
Dividends declared to common shareholders | (7.7) | | | | | | (7.7) | |
Treasury shares repurchased (in usd) | (15.2) | | | | $ (15.2) | | | |
Treasury shares repurchased (in shares) | | | | | (300,000) | | | |
Activity under share plans (shares) | | | | | 0 | | | |
Activity under share plans (in usd) | 5.6 | | | | $ 2.5 | | | |
APIC activity under share plans | | | | | | 3.1 | | |
Ending shareholders' equity at Jun. 30, 2023 | $ 1,559.9 | | | $ 0.7 | $ (876.3) | 1,586.3 | 1,000 | (150.8) |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | | | | | | | | |
OCI Cash flow hedges reclass to earnings, before tax | | $ 1 | | | | | | |
Treasury Stock, Common, Shares | | | | | (14,400,000) | | | |
Common shares, issued (in shares) | | | | 65,200,000 | | | | |
Treasury Stock, Common, Shares | | | | | (14,400,000) | | | |
Treasury Stock, Common, Shares | 15,133,200 | | | | (15,000,000) | | | |
Common shares, issued (in shares) | 65,251,989 | | | 65,200,000 | | | | |
Treasury Stock, Common, Shares | 15,133,200 | | | | (15,000,000) | | | |
Beginning shareholders' equity at Sep. 30, 2023 | $ 1,540.5 | | | $ 0.7 | $ (906.1) | 1,593.8 | 1,022.1 | (170) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | |
Net earnings | 4.8 | | | | | | (4.8) | |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | 27 | | | | | | | 27 |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax | (0.1) | | | | | | | (0.1) |
Deferred gain (loss) on hedging activity, net of tax | (3.4) | | | | | | | (3.4) |
Dividends declared to common shareholders | (7.6) | | | | | | (7.6) | |
Treasury shares repurchased (in usd) | (15.5) | | | | $ (15.5) | | | |
Treasury shares repurchased (in shares) | | | | | (400,000) | | | |
Activity under share plans (shares) | | | | | 200,000 | | | |
Activity under share plans (in usd) | 0.1 | | | | $ 25 | | | |
APIC activity under share plans | | | | | | (24.9) | | |
Ending shareholders' equity at Dec. 31, 2023 | 1,545.8 | | | 0.7 | (896.6) | 1,568.9 | 1,019.3 | (146.5) |
Beginning shareholders' equity at Sep. 30, 2023 | 1,540.5 | | | 0.7 | (906.1) | 1,593.8 | 1,022.1 | (170) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | |
Net earnings | 89.8 | | | | | | | |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | (2.1) | | | | | | | |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax | (1.1) | | | | | | | |
Deferred gain (loss) on hedging activity, net of tax | $ (0.1) | | | | | | | |
Treasury shares repurchased (in shares) | (1,100,000) | | | | | | | |
Ending shareholders' equity at Jun. 30, 2024 | $ 1,576.6 | | | $ 0.7 | $ (920.6) | 1,580.8 | 1,089 | (173.3) |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | | | | | | | | |
OCI Cash flow hedges reclass to earnings, before tax | | | $ 4.4 | | | | | |
Treasury Stock, Common, Shares | | | | | (15,200,000) | | | |
Common shares, issued (in shares) | | | | 65,200,000 | | | | |
Treasury Stock, Common, Shares | | | | | (15,200,000) | | | |
Beginning shareholders' equity at Dec. 31, 2023 | 1,545.8 | | | $ 0.7 | $ (896.6) | 1,568.9 | 1,019.3 | (146.5) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | |
Net earnings | 36 | | | | | | 36 | |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | (16) | | | | | | | (16) |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax | (0.5) | | | | | | | (0.5) |
Deferred gain (loss) on hedging activity, net of tax | 2.7 | | | | | | | 2.7 |
Dividends declared to common shareholders | (7.6) | | | | | | (7.6) | |
Treasury shares repurchased (in usd) | (15.4) | | | | $ (15.4) | | | |
Treasury shares repurchased (in shares) | | | | | (400,000) | | | |
Activity under share plans (shares) | | | | | 0 | | | |
Activity under share plans (in usd) | 6.3 | | | | $ 0.9 | | | |
APIC activity under share plans | | | | | | 5.4 | | |
Ending shareholders' equity at Mar. 31, 2024 | 1,551.3 | | | $ 0.7 | $ (911.1) | 1,574.3 | 1,047.7 | (160.3) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | | | | | | | | |
Treasury Stock, Common, Shares | | | | | (15,600,000) | | | |
Common shares, issued (in shares) | | | | 65,200,000 | | | | |
Treasury Stock, Common, Shares | | | | | (15,600,000) | | | |
Net earnings | 49 | | | | | | 49 | |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax | (13.1) | | | | | | | (13.1) |
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax | (0.5) | | | | | | | (0.5) |
Deferred gain (loss) on hedging activity, net of tax | 0.6 | | | | | | | 0.6 |
Dividends declared to common shareholders | (7.7) | | | | | | (7.7) | |
Treasury shares repurchased (in usd) | (9.9) | | | | $ (9.9) | | | |
Treasury shares repurchased (in shares) | | | | | (300,000) | | | |
Activity under share plans (shares) | | | | | 0 | | | |
Activity under share plans (in usd) | 6.9 | | | | $ 0.4 | | | |
APIC activity under share plans | | | | | | 6.5 | | |
Ending shareholders' equity at Jun. 30, 2024 | $ 1,576.6 | | | $ 0.7 | $ (920.6) | $ 1,580.8 | $ 1,089 | $ (173.3) |
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] | | | | | | | | |
OCI Cash flow hedges reclass to earnings, before tax | | $ 2 | | | | | | |
Treasury Stock, Common, Shares | 15,865,360 | | | | (15,900,000) | | | |
Common shares, issued (in shares) | 65,251,989 | | | 65,200,000 | | | | |
Treasury Stock, Common, Shares | 15,865,360 | | | | (15,900,000) | | | |