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Debt (Interest Expense) (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2022
Interest Expense, Debt [Abstract] |  |  |  |
Gain on extinguishment of debt | $ 0 | $ 0 | $ 0 | $ (71)
Amortization of debt discount and issuance costs | 1,155 | 1,190 | 2,310 | 2,522
Other | 171 | 287 | 409 | 566
Total | 16,693 | 15,589 | 32,350 | 33,349
Senior Secured Notes Due 2028 |  |  |  |
Interest Expense, Debt [Abstract] |  |  |  |
Interest expense | 5,568 | 5,568 | 11,136 | 11,165
Debt discount and issuance costs write-off | 0 | 0 | 0 | 15
Gain on extinguishment of debt |  |  |  | (100)
Amortization of debt discount and issuance costs |  |  | 558 |
Term B Loan |  |  |  |
Interest Expense, Debt [Abstract] |  |  |  |
Interest expense | 7,321 | 6,450 | 14,576 | 13,451
Debt discount and issuance costs write-off | 0 | 1,402 | 0 | 4,282
Amortization of debt discount and issuance costs |  |  | 738 |
Letter of Credit |  |  |  |
Interest Expense, Debt [Abstract] |  |  |  |
Interest expense | $ 2,478 | $ 692 | $ 3,919 | $ 1,419

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