Segment and Geographic information - Revenue by Geographical Segment (Details) - USD ($) $ in Thousands	12 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2024
Segment Reporting
Revenue	$ 678,927	$ 696,162	$ 657,274
Hong Kong
Segment Reporting
Revenue	649,268	617,574	524,788
China
Segment Reporting
Revenue	16,417	58,514	95,417
South Korea
Segment Reporting
Revenue	1,905	1,691	9,956
United States
Segment Reporting
Revenue	7,275	4,093	4,938
Other countries
Segment Reporting
Revenue	$ 4,062	$ 14,290	$ 22,175

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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+ Details

- 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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+ Details