Income Taxes - Income Tax Schedules (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
U.S. federal taxes:
Current	$ 721	$ 485	$ 1,093
Deferred	190	1,652	549
Non-U.S. taxes:
Current	3,972	3,187	4,620
Deferred	(13,502)	(1,669)	(404)
State taxes, net of federal benefit:
Current	(6)	(6)	79
Total provision (benefit) for income taxes	$ (8,625)	$ 3,649	$ 5,937
Effective income tax rate reconciliation
United States statutory rate	21.00%	21.00%	21.00%
Stock-based compensation	(0.30%)	(3.70%)	0.20%
Foreign taxes, net	(38.90%)	(186.90%)	13.50%
Outside basis difference on equity method investment	45.10%	27.40%	(1.00%)
Tax credits	7.70%	86.20%	(13.30%)
Non-deductible expenses	(1.00%)	(6.90%)	1.50%
Tax exempt income	0.00%	2.80%	(1.50%)
Withholding taxes	0	0	0.090
Non-deductible executive compensation	(0.060)	(0.786)	0.073
Foreign derived intangible income deduction	2.00%	(0.00%)	(7.20%)
Other	1.40%	0.60%	0.60%
Effective income tax rate	31.00%	(138.10%)	30.10%
Domestic and foreign components of income (loss) before taxes
U.S. operations	$ 8,229	$ 9,079	$ 19,001
Non-U.S. operations	(36,025)	(11,722)	711
Net income (loss) before income taxes and equity method investment loss	(27,796)	(2,643)	19,712
Deferred tax assets:
Accrued compensation	2,327	2,188
Net operating loss carryforwards	0	0
Depreciation	7,210	6,286
Tax credits	16,957	16,161
Operating lease liabilities	3,953	4,574
Capitalized R&D costs	1,302	1,398
Accruals and reserves	434	445
Total deferred tax assets	32,183	31,052
Valuation allowance	(8,751)	(7,266)
Total deferred tax assets, net of valuation allowance	23,432	23,786
Deferred tax liabilities:
Depreciation and amortization	(18,538)	(19,062)
Right of use assets	(3,724)	(4,328)
Investments	(13,763)	(26,263)
Total deferred tax liabilities	(36,025)	(49,653)
Current and non-current deferred tax assets and liabilities
Deferred tax assets	599	549
Net deferred tax liabilities	(12,593)	(25,867)
Unrecognized tax benefits rollforward
Balance at beginning of year	10,088	9,335	8,609
Additions based on tax positions related to the current year	826	764	804
Reductions based on tax positions related to prior years	(5)	(11)	(68)
Reductions due to lapse of applicable statute of limitations	(167)	0	(10)
Balance at end of year	10,742	10,088	9,335
Tax Credit Carryforward [Line Items]
Deferred Tax Liabilities, Gross	36,025	49,653
U.S. operations	8,229	9,079	19,001
Non-U.S. operations	(36,025)	(11,722)	711
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(27,796)	(2,643)	$ 19,712
Long Term Liabilities
Deferred tax liabilities:
Total deferred tax liabilities	(13,192)	(26,416)
Tax Credit Carryforward [Line Items]
Deferred Tax Liabilities, Gross	$ 13,192	$ 26,416