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Debt (Interest Expense) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2023
Interest Expense, Debt [Abstract] |  |  |
Debt discount and issuance costs write-off | $ 1,738 |  |
Gain on extinguishment of debt | 0 | $ 0 | $ (71)
Amortization of debt discount and issuance costs | 4,247 | 4,550 | 4,832
Other | 910 | 761 | 1,063
Total | 52,318 | 63,659 | 63,100
Senior Secured Notes Due 2028 |  |  |
Interest Expense, Debt [Abstract] |  |  |
Interest expense | 22,272 | 22,272 | 22,301
Debt discount and issuance costs write-off |  |  | 15
Gain on extinguishment of debt |  |  | (100)
Amortization of debt discount and issuance costs | 1,188 |  |
Term B Loan |  |  |
Interest Expense, Debt [Abstract] |  |  |
Interest expense | 16,074 | 26,324 | 26,831
Debt discount and issuance costs write-off | 1,738 | 1,113 | 4,282
Amortization of debt discount and issuance costs | 1,031 |  |
Letter of Credit |  |  |
Interest Expense, Debt [Abstract] |  |  |
Interest expense | $ 7,077 | $ 8,639 | $ 3,847

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