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Additional Financial Information (Supplemental Cash Flow Information) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Mar. 31, 2020
Additional Financial Information [Abstract] |  |  |
Interest paid | $ 135.0 | $ 149.7 | $ 173.8
Income taxes paid (refunded), net | 16.9 | (54.0) | (5.3)
Non-cash investing activities |  |  |
Accrued equity method investment | 19.0 | 0.0 | 0.0
Consideration receivable for Pantaya sale | 0.0 | 123.6 | 0.0
Decrease in finance lease right-of-use asset due to a reassessment event |  | (42.0) |
Non-cash financing activities |  |  |
Decrease in finance lease liability due to a reassessment event |  | (48.6) |
Cash paid for amounts included in the measurement of lease liabilities: |  |  |
Operating cash flows for operating leases | 57.0 | 48.8 | 37.1
Operating cash flows for finance leases | 0.0 | 1.6 | 3.4
Financing cash flows for finance leases | 0.0 | 2.6 | 3.0
Right-of-use assets obtained in exchange for new lease obligations: |  |  |
Operating leases | 67.8 | 25.0 | 8.3
Increase in right-of-use assets and lease liability due to a reassessment event: |  |  |
Operating leases - increase in right-of-use assets | 27.5 | 6.0 | 0.0
Operating leases - increase in lease liability | $ 27.5 | $ 12.6 | $ 0.0

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