Fair Value Measurements - Narrative (Details) - USD ($)	3 Months Ended	6 Months Ended
Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Mar. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity method investments	$ 18,800,000		$ 18,800,000		$ 18,400,000
Impairment of non-marketable investments	0	$ 0	0	$ 0
Equity investments included in other assets	8,800,000		8,800,000		8,800,000
Financial assets impairment charges		0		0
Impairment of non-financial assets	0	$ 0	0	$ 0
Recurring \| Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in privately held companies	$ 33,183,000		$ 33,183,000		$ 29,006,000

Impairment Of Financial Assets Measured At Fair Value On A Nonrecurring Basis

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- Definition

Non-Financial Asset Impairment Charges

+ References

No definition available.

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- Definition

Amount of other-than-temporary decline in value that has been recognized against investment accounted for under equity method of accounting.

+ References

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Amount of investment in equity security without readily determinable fair value.

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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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Amount of investment in debt security measured at fair value with change in fair value recognized in net income (trading) and investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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