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Summary of Significant Accounting Policies - Additional Information (Details) shares in Millions | 12 Months Ended
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Mar. 31, 2021 director shares | Mar. 31, 2020 shares | Mar. 31, 2019 shares
Summary Of Significant Accounting Policies [Line Items] |  |  |
Ownership interest rate percentage (as percent) | 100.00% |  |
Equity awards vested percentage after first year | 25.00% |  |
Equity awards vested percentage after second year | 25.00% |  |
Equity awards vested percentage after third year | 50.00% |  |
Contingent Shares Not Expected To Vest |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Potential diluted common shares outstanding (in shares) | shares | 0.9 | 1.5 | 2.2
Minimum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Weighted average useful life of finite-lived intangible assets | 2 years |  |
Maximum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Weighted average useful life of finite-lived intangible assets | 13 years |  |
AICF Funding |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Ownership interest rate percentage (as percent) | 0.00% |  |
AICF Funding |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of directors appointed by Company | 3 |  |
AICF Funding | New South Wales, Australia |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of directors appointed by NSW government | 2 |  |

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