Lines of Credit and Term Loans - Schedule of Available Borrowings and Interest Rates for Short-term and Long-term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Jun. 30, 2024
Secured debt \| Bank of America Term Loan \| Term loan
Short-term Debt [Line Items]
Available borrowings	$ 0	$ 0
Secured debt \| Chang Hwa Bank Credit Facility due October 15, 2026 \| Term loan
Short-term Debt [Line Items]
Available borrowings	$ 0	$ 0
Interest rate	2.08%	1.68%
Secured debt \| CTBC Term Loan Facility, due June 4, 2030 \| Term loan
Short-term Debt [Line Items]
Available borrowings	$ 0	$ 0
Interest rate	1.33%	1.33%
Secured debt \| CTBC Term Loan Facility, due August 15, 2026 \| Term loan
Short-term Debt [Line Items]
Available borrowings	$ 0	$ 0
Interest rate		1.53%
Secured debt \| CTBC Term Loan Facility, due August 15, 2026 \| Minimum \| Term loan
Short-term Debt [Line Items]
Interest rate	1.53%
Secured debt \| CTBC Term Loan Facility, due August 15, 2026 \| Maximum \| Term loan
Short-term Debt [Line Items]
Interest rate	2.03%
Secured debt \| E.SUN Bank Term Loan Facility, due September 15, 2026 \| Term loan
Short-term Debt [Line Items]
Available borrowings	$ 0	$ 0
Interest rate		1.87%
Secured debt \| E.SUN Bank Term Loan Facility, due September 15, 2026 \| Minimum \| Term loan
Short-term Debt [Line Items]
Interest rate	1.87%
Secured debt \| E.SUN Bank Term Loan Facility, due September 15, 2026 \| Maximum \| Term loan
Short-term Debt [Line Items]
Interest rate	2.17%
Secured debt \| E.SUN Bank Term Loan Facility, due August 15, 2027 \| Term loan
Short-term Debt [Line Items]
Available borrowings	$ 0	$ 0
Interest rate	1.87%	1.87%
Secured debt \| Mega Bank Term Loan Facility, due October 3, 2026 \| Term loan
Short-term Debt [Line Items]
Available borrowings	$ 0	$ 0
Interest rate	2.02%
Secured debt \| Mega Bank Term Loan Facility, due October 3, 2026 \| Minimum
Short-term Debt [Line Items]
Interest rate		1.52%
Secured debt \| Mega Bank Term Loan Facility, due October 3, 2026 \| Maximum
Short-term Debt [Line Items]
Interest rate		1.72%
Line of Credit \| Revolving Credit Facility \| 2018 Bank of America Credit Facility
Short-term Debt [Line Items]
Available borrowings	$ 0	$ 350,000
Interest rate		6.82%
Line of Credit \| Revolving Credit Facility \| 2022 Bank of America Credit Facility
Short-term Debt [Line Items]
Available borrowings	0	$ 20,000
Interest rate		6.49%
Line of Credit \| Revolving Credit Facility \| Cathay Bank Line of Credit
Short-term Debt [Line Items]
Available borrowings	0	$ 132,000
Interest rate		7.33%
Line of Credit \| Revolving Credit Facility \| CTBC Credit Lines
Short-term Debt [Line Items]
Available borrowings	$ 160,834	$ 427
Line of Credit \| Revolving Credit Facility \| CTBC Credit Lines \| Minimum
Short-term Debt [Line Items]
Interest rate	2.63%	2.09%
Line of Credit \| Revolving Credit Facility \| CTBC Credit Lines \| Maximum
Short-term Debt [Line Items]
Interest rate	5.79%	6.13%
Line of Credit \| Revolving Credit Facility \| Chang Hwa Bank Credit Lines
Short-term Debt [Line Items]
Available borrowings	$ 29,062	$ 20,000
Line of Credit \| Revolving Credit Facility \| Chang Hwa Bank Credit Lines \| Minimum
Short-term Debt [Line Items]
Interest rate	1.88%	1.88%
Line of Credit \| Revolving Credit Facility \| Chang Hwa Bank Credit Lines \| Maximum
Short-term Debt [Line Items]
Interest rate	5.18%	6.33%
Line of Credit \| Revolving Credit Facility \| HSBC Bank Credit Lines
Short-term Debt [Line Items]
Available borrowings	$ 0	$ 20,000
Line of Credit \| Revolving Credit Facility \| HSBC Bank Credit Lines \| Minimum
Short-term Debt [Line Items]
Interest rate		2.03%
Line of Credit \| Revolving Credit Facility \| HSBC Bank Credit Lines \| Maximum
Short-term Debt [Line Items]
Interest rate		6.28%
Line of Credit \| Revolving Credit Facility \| E.SUN Bank Credit Lines
Short-term Debt [Line Items]
Available borrowings	0	$ 0
Line of Credit \| Revolving Credit Facility \| E.SUN Bank Credit Lines \| Minimum
Short-term Debt [Line Items]
Interest rate		2.02%
Line of Credit \| Revolving Credit Facility \| E.SUN Bank Credit Lines \| Maximum
Short-term Debt [Line Items]
Interest rate		6.17%
Line of Credit \| Revolving Credit Facility \| Mega Bank Credit Lines
Short-term Debt [Line Items]
Available borrowings	$ 50,000	$ 0
Line of Credit \| Revolving Credit Facility \| Mega Bank Credit Lines \| Minimum
Short-term Debt [Line Items]
Interest rate	2.02%	1.90%
Line of Credit \| Revolving Credit Facility \| Mega Bank Credit Lines \| Maximum
Short-term Debt [Line Items]
Interest rate	5.26%	5.80%
Line of Credit \| Revolving Credit Facility \| First Bank Credit Lines
Short-term Debt [Line Items]
Available borrowings	$ 0	$ 1,916
Line of Credit \| Revolving Credit Facility \| First Bank Credit Lines \| Minimum
Short-term Debt [Line Items]
Interest rate		2.03%
Line of Credit \| Revolving Credit Facility \| First Bank Credit Lines \| Maximum
Short-term Debt [Line Items]
Interest rate		6.19%
Line of Credit \| Revolving Credit Facility \| Yuanta Bank Credit Lines
Short-term Debt [Line Items]
Available borrowings	$ 46,822	$ 47,610
Line of Credit \| Revolving Credit Facility \| Yuanta Bank Credit Lines \| Minimum
Short-term Debt [Line Items]
Interest rate	2.32%	2.32%
Line of Credit \| Revolving Credit Facility \| Yuanta Bank Credit Lines \| Maximum
Short-term Debt [Line Items]
Interest rate	5.95%	6.33%

Secured debt | Bank of America Term Loan | Term loan