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Additional Financial Information (Tables) | 6 Months Ended
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Sep. 30, 2018
Additional Financial Information [Abstract] |
Schedule of Other Assets | The composition of the Company’s other assets is as follows as of September 30, 2018 and March 31, 2018:
| September 30, 2018 |  | March 31, 2018
| (Amounts in millions)
Other current assets |  |  |
Prepaid expenses and other | $ | 64.0 |  |  | $ | 34.1 |
Product inventory | 20.8 |  |  | 20.3 |
Tax credits receivable | 106.2 |  |  | 141.4 |
| $ | 191.0 |  |  | $ | 195.8 |
Other non-current assets |  |  |
Prepaid expenses and other | $ | 52.1 |  |  | $ | 23.8 |
Accounts receivable | 266.4 |  |  | 325.2 |
Tax credits receivable | 121.1 |  |  | 109.6 |
| $ | 439.6 |  |  | $ | 458.6 |
Supplemental Schedule of Non-Cash Investing and Financing Activities | The supplemental schedule of non-cash investing and financing activities is presented below:
| Six Months Ended September 30,
| 2018 |  | 2017
| (Amounts in millions)
Non-cash investing activities: |  |  |
Common shares related to business acquisitions (see Note 2) | $ | 83.7 |  |  | $ | — |
Non-cash financing activities: |  |  |
Accrued dividends | $ | 19.4 |  |  | $ | — |

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