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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Fair values of financial assets and liabilities (Details) - USD ($) $ in Thousands | Jun. 30, 2023 | Jun. 30, 2022
--- | --- | ---
Fair Value of Financial Instruments |  |
Liabilities-Contingent consideration | $ 21,181 | $ 28,212
Fair value recurring |  |
Fair Value of Financial Instruments |  |
Assets-Insurance company contracts | 47,181 | 40,284
Assets-Interest rate swap contract | 5,369 |
Liabilities-Convertible debt |  | 242,302
Liabilities-Contingent consideration | 21,181 | 28,212
Fair value recurring | Level 2 |  |
Fair Value of Financial Instruments |  |
Assets-Insurance company contracts | 47,181 | 40,284
Assets-Interest rate swap contract | 5,369 |
Liabilities-Convertible debt |  | 242,302
Fair value recurring | Level 3 |  |
Fair Value of Financial Instruments |  |
Liabilities-Contingent consideration | $ 21,181 | $ 28,212

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