Share-Based Compensation - Narrative (Details) $ / shares in Units, $ in Millions	3 Months Ended
Jun. 30, 2026 USD ($) tranche $ / shares shares	Jun. 30, 2025 USD ($)
Share-Based Compensation and Other Compensation Plans [Line Items]
Term of trailing trading days, weighted average price use to calculate performance condition of PSUs	30 days
Number of PSUs
Share-Based Compensation and Other Compensation Plans [Line Items]
Number of vesting tranches \| tranche	6
PSUs holding period before common shares may be sold by executive	2 years
Number of PSUs \| Share-Based Payment Arrangement, Sixth And Final Tranche
Share-Based Compensation and Other Compensation Plans [Line Items]
Share price (in dollars per share) \| $ / shares	$ 30.00
RSL 2021 EIP
Share-Based Compensation and Other Compensation Plans [Line Items]
Common shares available for future grants (in shares)	59,105,412
Senior Executive Compensation Program \| Number of PSUs
Share-Based Compensation and Other Compensation Plans [Line Items]
PSUs performance condition satisfied (in shares)	15,298,215
PSUs satisfied performance condition, shares (in shares)	43,350,000
Subsidiary Equity Incentive Plans
Share-Based Compensation and Other Compensation Plans [Line Items]
Share-based compensation expense \| $	$ 14.8	$ 19.3

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Share Based Compensation Arrangement by Share Based Payment Award, Share Price at Tranche Performance Period

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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