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Debt (Long-term debt) (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Jun. 30, 2020
--- | --- | ---
Total Debt: |  |
Long-term Debt, Gross | $ 1,091,000 | $ 294,000
Unamortized debt issuance costs | (21,791) | (6,401)
Total Amount Outstanding | 1,070,711 | 289,115
Less Current Portion: |  |
Term B Loan | (3,000) | (3,000)
Noncurrent Portion | 1,067,711 | 286,115
Senior Secured Notes Due 2028 And Term B Loan [Member] |  |
Total Debt: |  |
Unamortized debt issuance costs | (20,289) | (4,885)
Senior Secured Notes Due 2028 [Member] |  |
Total Debt: |  |
Long-term Debt, Gross | 800,000 | 0
Unamortized debt issuance costs | (15,548) | 0
Term B Loan [Member] |  |
Total Debt: |  |
Long-term Debt, Gross | 291,000 | 294,000
Unamortized debt issuance costs | (4,741) | (4,885)
Less Current Portion: |  |
Term B Loan | $ (3,000) | $ (3,000)

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