Stock-Based Compensation - Valuation Assumptions for Stock Options (Details) - $ / shares	12 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2024
Service-Based Stock Options \| 2021 Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Weighted-average grant date fair value (in dollars per share)	$ 4.04	$ 7.80	$ 8.03
Weighted-average assumptions:
Expected dividend yield	0.00%	0.00%	0.00%
Expected stock price volatility	40.00%	50.00%	50.00%
Risk-free interest rate	4.20%	3.76%	4.71%
Expected option term (years)	9 months 18 days	6 years	6 years
Service-Based Stock Options \| 2025 Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Weighted-average grant date fair value (in dollars per share)	$ 7.56
Weighted-average assumptions:
Expected dividend yield	0.00%
Expected stock price volatility	40.00%
Risk-free interest rate	4.04%
Expected option term (years)	5 years 9 months 18 days
Service and Market-Based Stock Options \| 2021 Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Weighted-average grant date fair value (in dollars per share)		$ 5.54	$ 5.45
Weighted-average assumptions:
Expected dividend yield		0.00%	0.00%
Expected stock price volatility		50.00%	50.00%
Risk-free interest rate		3.91%	3.48%
Service and Market-Based Stock Options \| 2025 Plan
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Weighted-average grant date fair value (in dollars per share)	$ 4.41
Weighted-average assumptions:
Expected dividend yield	0.00%
Expected stock price volatility	40.00%
Risk-free interest rate	4.40%

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

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Rate of weighted-average expected volatility for award under share-based payment arrangement.

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- Definition

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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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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