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Fair Value Measurements (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Jun. 30, 2023
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Long-term debt, gross | $ 708,283 | $ 708,283
Assets measured at fair value using Level 3 | 0 | 0
Liabilities measured at fair value using Level 3 | 0 | 0
Senior Secured Notes Due 2028 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Long-term debt, gross | 404,950 | 404,950
Senior Secured Notes Due 2028 | Level 1 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Long-term debt, fair value | 373,900 |
Term B Loan |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Long-term debt, gross | 303,333 | 303,333
Term B Loan | Level 2 |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Long-term debt, fair value | 303,500 |
Accounts Receivable | Credit extension program |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Loans Receivable, Fair Value Disclosure | 29,300 | 29,700
Nonqualified Deferred Compensation Plan | Accrued Liabilities |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Deferred Compensation Liability, Current, Fair Value Disclosure | 12,200 | 12,600
Nonqualified Deferred Compensation Plan | Prepaid Expenses and Other Current Assets |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |
Deferred Compensation Plan Assets, Fair Value Disclosure | $ 12,100 | $ 12,500

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