| USD ($) $ in Millions | Jun 30, 2026 | Mar 31, 2026 | Sep 30, 2025 | Jun 30, 2025 | Mar 31, 2025 | Sep 30, 2024 | Jun 30, 2024 | Mar 31, 2024 | Sep 30, 2023 | Jun 30, 2023 | Mar 31, 2023 | Sep 30, 2022 | Jun 30, 2022 | Mar 31, 2022 | Sep 30, 2021 | Jun 30, 2021 | Mar 31, 2021 | Sep 30, 2020 | Jun 30, 2020 | Mar 31, 2020 | Sep 30, 2019 | Jun 30, 2019 | Mar 31, 2019 | Sep 30, 2018 | Jun 30, 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Net sales | |||||||||||||||||||||||||
Net sales | $ 3,274.3 | $ 2,649.5 | $ 2,675.8 | $ 2,638.1 | $ 2,036.0 | $ 2,073.5 | $ 1,952.8 | $ 1,639.1 | $ 1,742.6 | $ 1,734.1 | $ 1,521.1 | $ 1,481.1 | |||||||||||||
Costs and expenses | |||||||||||||||||||||||||
Cost of sales | 2,039.4 | 1,649.8 | 1,665.1 | 1,741.5 | 1,349.5 | 1,317.1 | 1,211.6 | 1,072.7 | 1,115.0 | 1,140.1 | 1,025.6 | 1,051.8 | |||||||||||||
Operating expenses | |||||||||||||||||||||||||
Selling, general and administrative expenses | 494.4 | 456.7 | 414.3 | 395.6 | 346.3 | 334.6 | 363.8 | 314.0 | 327.2 | 327.6 | 308.7 | 295.2 | |||||||||||||
Amortization of intangibles | 73.7 | 77.6 | 48.2 | 46.9 | 46.0 | 45.3 | 45.8 | 46.0 | 45.5 | 45.4 | 45.2 | 54.2 | |||||||||||||
Restructuring costs | (3.9) | (4.9) | 30.7 | 1.9 | 1.1 | 6.3 | (2.5) | 0.3 | 1.3 | 9.1 | 13.1 | (1.5) | |||||||||||||
Foreign currency (gain) loss, net | 3.9 | (1.6) | 0.9 | 2.3 | 2.6 | 5.3 | 0.2 | 3.2 | 2.7 | 7.5 | 3.1 | 0.2 | |||||||||||||
Asset impairments | - | - | - | - | - | - | - | - | - | - | - | 0.0 | |||||||||||||
Other operating expense (income) | 28.9 | 31.8 | (0.1) | 7.5 | (0.2) | (6.7) | (2.1) | 0.3 | (0.0) | (1.4) | (4.9) | 1.2 | |||||||||||||
Operating profit (loss) | 637.9 | 440.1 | 516.7 | 442.4 | 290.7 | 371.6 | 336.0 | 202.6 | 250.9 | 205.8 | 130.3 | 80.0 | |||||||||||||
Other deductions, net | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||
Interest expense (income), net | 17.4 | (4.4) | 22.8 | 21.3 | 25.3 | 35.9 | 44.8 | 39.0 | 43.5 | 46.9 | 46.8 | 38.8 | |||||||||||||
Loss on extinguishment of debt | (0.0) | 6.2 | 1.7 | (0.0) | - | (0.0) | 1.1 | - | - | - | - | (0.0) | |||||||||||||
Other non-operating expense (income) | 0.5 | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||
Change in fair value of warrant liabilities | - | - | 0.0 | 0.0 | 0.0 | 67.2 | 25.4 | 176.6 | 61.6 | 46.0 | (4.2) | 9.8 | |||||||||||||
Revenues | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||
Dividend income | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||
General and administrative expenses | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||
Income (loss) before income taxes | 620.0 | 438.3 | 492.2 | 421.1 | 265.4 | 268.5 | 264.7 | (13.0) | 145.8 | 112.9 | 87.7 | 31.4 | |||||||||||||
Income tax expense (benefit) | 122.2 | 48.2 | 93.7 | 96.9 | 100.9 | 91.9 | 86.6 | (7.1) | 51.7 | 29.7 | 37.4 | 10.2 | |||||||||||||
Net income (loss) | $ 497.8 | $ 390.1 | $ 398.5 | $ 324.2 | $ 164.5 | $ 176.6 | $ 178.1 | $ (5.9) | $ 94.1 | $ 83.2 | $ 50.3 | $ 21.2 | |||||||||||||
Earnings (loss) per share: | |||||||||||||||||||||||||
Basic (in dollars per share) | $ 1.29 | $ 1.02 | $ 1.04 | $ 0.85 | $ 0.43 | $ 0.47 | $ 0.48 | $ (0.02) | $ 0.25 | $ 0.22 | $ 0.13 | $ 0.06 | |||||||||||||
Diluted (in dollars per share) | 1.27 | 0.99 | 1.02 | 0.83 | 0.42 | 0.46 | 0.46 | (0.02) | 0.24 | 0.22 | 0.12 | 0.06 | |||||||||||||
Basic and diluted (USD per share) | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||
Weighted-average shares outstanding: | |||||||||||||||||||||||||
Basic and diluted (in shares) | - | - | - | - | - | - | - | - | - | - | - | - | |||||||||||||
Basic (in shares) | 384,555,346 | 382,921,496 | 382,025,408 | 381,482,996 | 380,845,511 | 375,203,364 | 374,734,093 | 379,135,184 | 380,899,419 | 379,938,365 | 378,129,786 | 377,016,981 | |||||||||||||
Diluted (in shares) | 392,746,991 | 392,128,170 | 390,928,669 | 389,846,827 | 390,109,650 | 384,316,065 | 384,488,069 | 379,135,184 | 388,240,664 | 382,351,210 | 381,683,511 | 377,444,002 |