Note 11 - Retirement Benefits - Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| UNITED STATES | ||||
| Service cost | $ 0 | $ 0 | $ 0 | $ 0 |
| Interest cost | 2,288 | 2,386 | 6,865 | 7,158 |
| Expected return on plan assets | (2,521) | (2,641) | (7,562) | (7,923) |
| Recognized net actuarial loss | 1,175 | 1,055 | 3,524 | 3,166 |
| Amortization of prior service cost | 0 | 0 | 0 | 0 |
| Net periodic (benefit) cost | 942 | 800 | 2,827 | 2,401 |
| Foreign Plan [Member] | ||||
| Service cost | 55 | 61 | 169 | 185 |
| Interest cost | 316 | 295 | 941 | 903 |
| Expected return on plan assets | (305) | (335) | (909) | (1,026) |
| Recognized net actuarial loss | 0 | 0 | 0 | 0 |
| Amortization of prior service cost | (1) | (1) | (2) | (2) |
| Net periodic (benefit) cost | $ 65 | $ 20 | $ 199 | $ 60 |
| X | ||||||||||
- Definition Amount of gain (loss) recognized in net periodic benefit (cost) credit of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of prior service cost (credit) recognized in net periodic benefit cost (credit) of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of expected return (loss) recognized in net periodic benefit (cost) credit, calculated based on expected long-term rate of return and market-related value of plan assets of defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of cost recognized for passage of time related to defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of net periodic benefit cost (credit) for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of cost for actuarial present value of benefits attributed to service rendered by employee for defined benefit plan. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Details
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- Details
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