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SIGNIFICANT ACCOUNTING POLICIES - Schedule of Fair Value of Assets and Liabilities (Details) - USD ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
First Lien Term Loans and Truist Term Loan | $ 853,063 | $ 864,125
Estimate of Fair Value Measurement |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
First Lien Term Loans and Truist Term Loan | 850,405 | 843,594
Estimate of Fair Value Measurement | Heart and Lung Limited |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Milestone contingent consideration | 11,099 |
Estimate of Fair Value Measurement | Level 1 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
First Lien Term Loans and Truist Term Loan | 0 | 0
Estimate of Fair Value Measurement | Level 1 | Heart and Lung Limited |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Milestone contingent consideration | 0 |
Estimate of Fair Value Measurement | Level 2 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
First Lien Term Loans and Truist Term Loan | 850,405 | 843,594
Estimate of Fair Value Measurement | Level 2 | Heart and Lung Limited |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Milestone contingent consideration | 0 |
Estimate of Fair Value Measurement | Level 3 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
First Lien Term Loans and Truist Term Loan | 0 | 0
Estimate of Fair Value Measurement | Level 3 | Heart and Lung Limited |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Milestone contingent consideration | 11,099 |
2019 Swaps - Interest Rate Contracts | Estimate of Fair Value Measurement |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Current and long term assets | 22,354 | 23,302
2019 Swaps - Interest Rate Contracts | Estimate of Fair Value Measurement | Level 1 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Current and long term assets | 0 | 0
2019 Swaps - Interest Rate Contracts | Estimate of Fair Value Measurement | Level 2 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Current and long term assets | 22,354 | 23,302
2019 Swaps - Interest Rate Contracts | Estimate of Fair Value Measurement | Level 3 |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Current and long term assets | $ 0 | $ 0

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