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Income Taxes - Narrative (Details) $ in Millions, $ in Millions | 12 Months Ended | 51 Months Ended
--- | --- | ---
Mar. 31, 2022 USD ($) | Mar. 31, 2022 AUD ($) | Mar. 31, 2021 USD ($) | Mar. 31, 2020 USD ($) | Mar. 31, 2022 USD ($) | Mar. 31, 2022 AUD ($)
Tax Credit Carryforward [Line Items] |  |  |  |  |  |
Tax loss carry-forwards | $ 66.2 |  |  |  | $ 66.2 |
Recognized tax deduction | 144.8 | $ 195.8 |  |  |  |
Contribution to AICF | 248.5 |  | $ 153.3 | $ 108.9 | 715.9 | $ 979.1
Foreign tax credit carry-forwards | 118.7 |  | 122.1 |  | 118.7 |
Valuation allowance | 261.2 |  | $ 262.7 |  | 261.2 |
Income tax paid, net of refunds | 92.7 |  |  |  |  |
Current taxes receivable, CARES Act | 29.6 |  |  |  | 29.6 |
Total amount of unrecognized tax benefits | 0.7 |  |  |  | 0.7 |
Interest and penalties recognized income tax expense | 0.7 |  |  |  |  |
Foreign Tax Credit Carry-Forwards |  |  |  |  |  |
Tax Credit Carryforward [Line Items] |  |  |  |  |  |
Foreign tax credit carry-forwards | $ 113.9 |  |  |  | $ 113.9 |
Percentage of valuation allowance against foreign tax credit carry-forwards (as percent) | 100.00% |  |  |  | 100.00% |
Foreign tax credit carry-forwards, subject to expiration | $ 4.8 |  |  |  | $ 4.8 |
Valuation allowance | $ 4.0 |  |  |  | $ 4.0 |

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- Definition Under the terms of the Amended and Restated Final Funding Agreement (AFFA), a wholly owned Australian subsidiary (the Performing Subsidiary) has an obligation to make payments to the AICF on an annual basis. The amount of these annual payments is dependent on several factors, including the Company's free cash flow (as defined by the AFFA), actuarial estimations, actual claims paid, operating expenses of the AICF and the annual cash flow cap. + References No definition available. + Details
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