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Income Taxes (Tables) | 12 Months Ended
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Jun. 30, 2024 | Jun. 30, 2023
Income Tax Disclosure [Abstract] |  |
Income Before Income Taxes | Income (loss) before income taxes consisted of the following for the years ended June 30:
(in thousands) |  | 2024 |  | 2023 |  | 2022
Income (loss) before income taxes: |  |  |  |  |  |
United States |  | $ | (13,544) |  |  | $ | (14,702) |  |  | $ | 10,109 |
International |  | 157,994 |  |  | 174,323 |  |  | 196,624 |
Total income before income taxes |  | $ | 144,450 |  |  | $ | 159,621 |  |  | $ | 206,733 |
Current income tax expense (benefit): |  |  |  |  |  |
Federal |  | $ | (4,003) |  |  | $ | 2,007 |  |  | $ | 1,115 |
State |  | 1,045 |  |  | 546 |  |  | 106 |
International |  | 41,784 |  |  | 42,921 |  |  | 44,019 |
Total current income tax expense |  | 38,826 |  |  | 45,474 |  |  | 45,240 |
Deferred income tax expense (benefit): |  |  |  |  |  |
Federal |  | $ | (3,389) |  |  | $ | (3,394) |  |  | $ | 10,841 |
State |  | (2,880) |  |  | 683 |  |  | (676) |
International |  | (1,748) |  |  | (6,508) |  |  | 1,127 |
Total deferred income tax expense (benefit): |  | (8,017) |  |  | (9,219) |  |  | 11,292 |
Provision for income taxes |  | $ | 30,809 |  |  | $ | 36,255 |  |  | $ | 56,532 |
Effective tax rate |  | 21.3 | % |  | 22.7 | % |  | 27.3 | %
Reconciliation of Income Taxes and the Provision for Income Taxes | The reconciliation of income taxes computed using the statutory U.S. income tax rate and the provision for income taxes was as follows for the years ended June 30:
(in thousands) |  | 2024 |  | 2023 |  | 2022
Income taxes at U.S. statutory rate |  | $ | 30,335 |  |  | $ | 33,520 |  |  | $ | 43,414 |
State income taxes, net of federal tax benefit |  | (1,412) |  |  | 971 |  |  | (450) |
U.S. income taxes provided on international income |  | 4,272 |  |  | 4,583 |  |  | 12,815 |
Combined tax effects of international income |  | 10,163 |  |  | 5,761 |  |  | 2,747 |
Change in valuation allowance and other uncertain tax positions |  | (3,398) |  |  | (4,060) |  |  | (614) |
U.S. research and development credit |  | (4,026) |  |  | (3,325) |  |  | (2,814) |
Change in permanent reinvestment assertion |  | — |  |  | — |  |  | 775 |
Combined effects of Swiss tax reform |  | (7,801) |  |  | (2,225) |  |  | — |
Non-deductible executive compensation |  | 2,389 |  |  | 667 |  |  | 1,395 |
Other |  | 287 |  |  | 363 |  |  | (736) |
Provision for income taxes |  | $ | 30,809 |  |  | $ | 36,255 |  |  | $ | 56,532 |
Components of Net Deferred Tax Liabilities and Assets |  | The components of net deferred tax assets and liabilities were as follows at June 30:
(in thousands) |  | 2024 |  | 2023
Deferred tax assets: |  |  |  |
Net operating loss (NOL) carryforwards |  | $ | 20,340 |  |  | $ | 24,111 |
Inventory valuation and reserves |  | 9,322 |  |  | 9,677 |
Accrued employee benefits |  | 13,627 |  |  | 14,758 |
Operating lease liabilities |  | 12,097 |  |  | 11,229 |
Other accrued liabilities |  | 13,810 |  |  | 13,963 |
Capitalized research and development costs |  | 35,637 |  |  | 25,187 |
Tax credits and other carryforwards |  | 18,231 |  |  | 22,601 |
Intangible assets |  | 11,095 |  |  | 5,209 |
Total |  | 134,159 |  |  | 126,735 |
Valuation allowance |  | 5,911 |  |  | 8,281 |
Total deferred tax assets |  | $ | 128,248 |  |  | $ | 118,454 |
Deferred tax liabilities: |  |  |  |
Tax depreciation in excess of book |  | $ | 58,723 |  |  | $ | 62,763 |
Operating lease right-of-use assets |  | 12,038 |  |  | 11,084 |
Unremitted earnings not permanently reinvested |  | 6,931 |  |  | 4,831 |
Pension benefits |  | 2,633 |  |  | 1,808 |
Other |  | 4,761 |  |  | 4,511 |
Total deferred tax liabilities |  | $ | 85,086 |  |  | $ | 84,997 |
Total net deferred tax assets (liabilities) |  | $ | 43,162 |  |  | $ | 33,457 |
Reconciliation of Unrecognized Tax Benefits Excluding Interest | A reconciliation of the beginning and ending amount of unrecognized tax benefits (excluding interest and penalty) is as follows as of June 30:
(in thousands) |  | 2024 |  | 2023 |  | 2022
Balance at beginning of year |  | $ | 6,935 |  |  | $ | 7,598 |  |  | $ | 8,656 |
(Decreases)/Increases for tax positions of prior years |  | — |  |  | (658) |  |  | 105 |
Increase for tax positions related to the current year |  | 79 |  |  | — |  |  | — |
Decreases related to lapse of statute of limitations |  | (5,686) |  |  | (99) |  |  | (779) |
Foreign currency translation |  | (19) |  |  | 94 |  |  | (384) |
Balance at end of year |  | $ | 1,309 |  |  | $ | 6,935 |  |  | $ | 7,598 |

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