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v3.20.2

Additional Financial Information (Non-cash Investing and Financing Activities) (Details) - USD ($) $ in Millions | 6 Months Ended
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Sep. 30, 2020 | Sep. 30, 2019
Non-cash investing activities |  |
Decrease in finance lease right-of-use asset due to a reassessment event | $ (42.0) | $ 0.0
Common shares related to business acquisitions | 0.0 | 28.1
Non-cash financing activities |  |
Decrease in finance lease liability due to a reassessment event | $ (48.6) | $ 0.0

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