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Additional Financial Information (Other Assets) (Details) - USD ($) $ in Millions | Sep. 30, 2019 | Mar. 31, 2019
--- | --- | ---
Other current assets |  |
Prepaid expenses and other | $ 69.7 | $ 150.6
Product inventory | 19.0 | 19.9
Tax credits receivable | 90.3 | 96.7
Other current assets | 179.0 | 267.2
Other non-current assets |  |
Prepaid expenses and other | 45.6 | 109.2
Accounts receivable | 148.6 | 176.1
Tax credits receivable | 176.6 | 150.8
Operating lease right-of-use assets | 146.3 | 0.0
Other non-current assets | $ 517.1 | $ 436.1

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