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Organization and Significant Accounting Policies - Narrative (Details) shares in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2021 USD ($) | Mar. 31, 2022 USD ($) director shares | Mar. 31, 2021 USD ($) shares | Mar. 31, 2020 USD ($) shares
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Ownership interest rate percentage (as percent) |  | 100.00% |  |
Goodwill and intangible asset impairment | $ | $ 0 |  |  |
Advertising costs | $ |  | $ 53,700,000 | $ 27,200,000 | $ 44,600,000
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 |  | 0.7 | 0.9 | 1.5
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 | director |  | 3 |  |
AICF Funding | New South Wales, Australia |  |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of directors appointed by NSW government | director |  | 2 |  |

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