Dividends (Details) - USD ($) $ / shares in Units, $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2022 |
Mar. 31, 2021 |
Mar. 31, 2020 |
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| Dividends Payable [Line Items] | |||
| Dividends | $ 484.0 | $ 0.0 | $ 158.6 |
| FY 2022 first half dividend | |||
| Dividends Payable [Line Items] | |||
| Interim ordinary dividend to shareholders (in dollars per share) | $ 0.40 | ||
| Dividends | $ 174.1 | ||
| FY 2021 special dividend | |||
| Dividends Payable [Line Items] | |||
| Interim ordinary dividend to shareholders (in dollars per share) | $ 0.70 | ||
| Dividends | $ 309.9 | ||
| FY 2020 first half dividend | |||
| Dividends Payable [Line Items] | |||
| Interim ordinary dividend to shareholders (in dollars per share) | $ 0.10 | ||
| Dividends | $ 44.7 | ||
| FY 2019 second half dividend | |||
| Dividends Payable [Line Items] | |||
| Interim ordinary dividend to shareholders (in dollars per share) | $ 0.26 | ||
| Dividends | $ 113.9 | ||
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- Definition Aggregate dividends paid during the period for each share of common stock outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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