Investments - Carrying Values for Publicly Traded and Privately Held Equity Securities (Details) - Privately held equity securities - USD ($) $ in Thousands	Jun. 30, 2026	Jun. 30, 2025
Debt and Equity Securities, FV-NI [Line Items]
Initial total cost	$ 145,802	$ 166,302
Cumulative net gains	7,034	(1,909)
Carrying value	$ 152,836	$ 164,393

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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+ Details