NOTES PAYABLE, REVOLVING CREDIT FACILITY AND CAPITAL LEASES (Details - Schedule of Debt) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Equipment notes payable at interest rates ranging from 4.4% to 5.6%, due through 2020, collateralized by medical equipment	$ 275	$ 632
Obligations under capital leases at interest rates ranging from 3.7% to 9.3%, due through 2022, collateralized by medical and office equipment (1)	0	12,119
Total debt obligations	692,395	672,279
Less current portion	(39,691)	(39,267)
Long-term portion debt obligations	652,704	633,012
Promissory note
Debt Instrument [Line Items]
Promissory note payable to the former owner of a practice acquired at an interest rate of 1.5% due through 2019	$ 0	199
Debt instrument, interest rate	1.50%
Debt instrument, maturity date	Dec. 31, 2019
Term Loan \| First Lien Term Loans
Debt Instrument [Line Items]
Debt	$ 649,824	587,191
Discount on First Lien Term Loans	(13,579)	(15,112)
Term Loan \| Term Loan Agreement collateralized by NJIN's tangible and intangible assets
Debt Instrument [Line Items]
Debt	55,875	59,250
Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt	$ 0	$ 28,000
Notes Payable, Other Payables
Debt Instrument [Line Items]
Debt instrument, maturity date	Dec. 31, 2020
Capital Lease Obligations
Debt Instrument [Line Items]
Debt instrument, maturity date	Dec. 31, 2022
Minimum \| Notes Payable, Other Payables
Debt Instrument [Line Items]
Debt instrument, interest rate	4.40%
Minimum \| Capital Lease Obligations
Debt Instrument [Line Items]
Debt instrument, interest rate	3.70%
Maximum \| Notes Payable, Other Payables
Debt Instrument [Line Items]
Debt instrument, interest rate	5.60%
Maximum \| Capital Lease Obligations
Debt Instrument [Line Items]
Debt instrument, interest rate	9.30%

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