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Maturities of Lease Liabilities (Details) (calc 2) link:presentationLink link:calculationLink link:definitionLink 99940602 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Intangible assets (Details) link:presentationLink link:calculationLink link:definitionLink 40602 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Intangible assets (Details) (Calc 2) link:presentationLink link:calculationLink link:definitionLink 40701 - Disclosure - OTHER ACCRUED LIABILITIES (Details) link:presentationLink link:calculationLink link:definitionLink 99941102 - Disclosure - FAIR VALUE MEASUREMENTS - Insurance Collateral (Details) link:presentationLink link:calculationLink link:definitionLink 99941103 - Disclosure - FAIR VALUE MEASUREMENTS - Amortized Cost and Fair value (Details) link:presentationLink link:calculationLink link:definitionLink 99941501 - Disclosure - INSURANCE RESERVES - Non-health and welfare insurance reserves (Details) link:presentationLink link:calculationLink link:definitionLink 995200090 - Document - Document and Entity Information link:presentationLink link:calculationLink link:definitionLink 995200300 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF MEZZANINE EQUITY AND STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 99940401 - Disclosure - REVENUE RECOGNITION (Details) link:presentationLink link:calculationLink link:definitionLink 99940601 - Disclosure - GOODWILL AND INTANGIBLE ASSETS - Useful life and remaining weighted average amortization period (Details) link:presentationLink link:calculationLink link:definitionLink 99940701 - Disclosure - OTHER ACCRUED LIABILITIES (Details) link:presentationLink link:calculationLink link:definitionLink 40701 - Disclosure - OTHER ACCRUED LIABILITIES Default (Details) link:presentationLink link:calculationLink link:definitionLink 99940801 - Disclosure - REDEEMABLE PREFERRED STOCK (Details) link:presentationLink link:calculationLink link:definitionLink 99940901 - Disclosure - WARRANTS (Details) link:presentationLink link:calculationLink link:definitionLink 99941001 - 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