CREDIT FACILITY, NOTES PAYABLE AND CAPITAL LEASE OBLIGATIONS (Details - Schedule of debt) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Equipment notes payable at interest rates ranging from 3.3% to 5.6%, due through 2020, collateralized by medical equipment	$ 538	$ 632
Obligations under capital leases at interest rates ranging from 4.3% to 11.2%, due through 2022, collateralized by medical and office equipment (1)	0	12,119
Total debt obligations	664,786	672,279
Less: current portion	(33,912)	(39,267)
Long term portion debt obligations	630,874	633,012
Term Loan \| First Lien Term Loan
Debt Instrument [Line Items]
Debt	578,920	587,191
Discounts on First Lien Term Loans	(14,272)	(15,112)
Term Loan \| Term Loan Agreement collateralized by NJIN's tangible and intangible assets
Debt Instrument [Line Items]
Debt	58,500	59,250
Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt	$ 41,000	28,000
Equipment Notes Payable
Debt Instrument [Line Items]
Maturity date	Dec. 31, 2020
Capital Lease Obligations
Debt Instrument [Line Items]
Maturity date	Dec. 31, 2022
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	$ 100	$ 199
Interest rate, stated percentage	1.50%
Maturity date	Dec. 31, 2019
Minimum \| Equipment Notes Payable
Debt Instrument [Line Items]
Interest rate, stated percentage	3.30%
Minimum \| Capital Lease Obligations
Debt Instrument [Line Items]
Interest rate, stated percentage	4.30%
Maximum \| Equipment Notes Payable
Debt Instrument [Line Items]
Interest rate, stated percentage	5.60%
Maximum \| Capital Lease Obligations
Debt Instrument [Line Items]
Interest rate, stated percentage	11.20%

Long-term Debt, Short-term Debt and Capital Lease Obligations, Current Maturities

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Long-term Debt, Short-term Debt and Capital Lease Obligations, Excluding Current Maturities

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Long-term Debt, Short-term Debt and Capital Lease Obligations, Including Current Maturities

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Contractual interest rate for funds borrowed, under the debt agreement.

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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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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Amount, after accumulated amortization, of debt discount.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying value as of the balance sheet date of loans payable (with maturities initially due after one year or beyond the operating cycle if longer), excluding current portion.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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