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Lines of Credit and Term Loans - Summary of Activities Under Short-term and Long-term Debt (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Jun. 30, 2024
--- | --- | ---
Secured debt | Bridge Term Loan Facility | 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%
Secured debt | CTBC Term Loan Facility, due June 4, 2030 | Minimum | Term Loan |  |
Short-term Debt [Line Items] |  |
Interest rate | 1.33% |
Secured debt | CTBC Term Loan Facility, due June 4, 2030 | Maximum | Term Loan |  |
Short-term Debt [Line Items] |  |
Interest rate | 1.83% |
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 | 2.22% | 1.87%
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 | 1.92% | 1.87%
Secured debt | Mega Bank Term Loan Facility, due October 3, 2026 | Term Loan |  |
Short-term Debt [Line Items] |  |
Available borrowings | $ 0 | $ 0
Secured debt | Mega Bank Term Loan Facility, due October 3, 2026 | Minimum | Term Loan |  |
Short-term Debt [Line Items] |  |
Interest rate | 2.02% | 1.52%
Secured debt | Mega Bank Term Loan Facility, due October 3, 2026 | Maximum | Term Loan |  |
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 | 0.00% | 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 | 0.00% | 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 | 0.00% | 7.33%
Line of credit | Revolving Credit Facility | CTBC Credit Lines |  |
Short-term Debt [Line Items] |  |
Available borrowings | $ 185,000 | $ 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 | $ 30,259 | $ 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 | 5.16% | 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 | 0.00% | 2.03%
Line of credit | Revolving Credit Facility | HSBC Bank Credit Lines | Maximum |  |
Short-term Debt [Line Items] |  |
Interest rate | 0.00% | 6.28%
Line of credit | Revolving Credit Facility | E.SUN Bank Credit Lines |  |
Short-term Debt [Line Items] |  |
Available borrowings | $ 30,000 | $ 0
Line of credit | Revolving Credit Facility | E.SUN Bank Credit Lines | Minimum |  |
Short-term Debt [Line Items] |  |
Interest rate | 2.02% | 2.02%
Line of credit | Revolving Credit Facility | E.SUN Bank Credit Lines | Maximum |  |
Short-term Debt [Line Items] |  |
Interest rate | 5.12% | 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 | 1.90% | 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 | 0.00% | 2.03%
Line of credit | Revolving Credit Facility | First Bank Credit Lines | Maximum |  |
Short-term Debt [Line Items] |  |
Interest rate | 0.00% | 6.19%
Line of credit | Revolving Credit Facility | Yuanta Bank Credit Lines |  |
Short-term Debt [Line Items] |  |
Available borrowings | $ 0 | $ 47,610
Line of credit | Revolving Credit Facility | Yuanta Bank Credit Lines | Minimum |  |
Short-term Debt [Line Items] |  |
Interest rate | 0.00% | 2.32%
Line of credit | Revolving Credit Facility | Yuanta Bank Credit Lines | Maximum |  |
Short-term Debt [Line Items] |  |
Interest rate | 0.00% | 6.33%

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