SIGNIFICANT ACCOUNTING POLICIES (Details - Fair Value Measurements) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
First Lien Term Loans and SunTrust Term Loan	$ 764,563	$ 767,875
Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Milestone contingent consideration	2,535
First Lien Term Loans and SunTrust Term Loan	753,769	766,973
Estimate of Fair Value Measurement \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Milestone contingent consideration	0
First Lien Term Loans and SunTrust Term Loan	0	0
Estimate of Fair Value Measurement \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Milestone contingent consideration	0
First Lien Term Loans and SunTrust Term Loan	753,769	766,973
Estimate of Fair Value Measurement \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Milestone contingent consideration	2,535
First Lien Term Loans and SunTrust Term Loan	0	0
2019 Swaps - Interest Rate Contracts \| Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
2019 Swaps - Interest Rate Contracts	4,500	16,319
2019 Swaps - Interest Rate Contracts \| Estimate of Fair Value Measurement \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
2019 Swaps - Interest Rate Contracts	0	0
2019 Swaps - Interest Rate Contracts \| Estimate of Fair Value Measurement \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
2019 Swaps - Interest Rate Contracts	4,500	16,319
2019 Swaps - Interest Rate Contracts \| Estimate of Fair Value Measurement \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
2019 Swaps - Interest Rate Contracts	$ 0	$ 0

Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled beyond one year or the normal operating cycle, if longer.

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Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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