0001001 - Document - COVER PAGE link:presentationLink link:calculationLink link:definitionLink 1001002 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 1002003 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1003004 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) link:presentationLink link:calculationLink link:definitionLink 1004005 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 1005006 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 1006007 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY link:presentationLink link:calculationLink link:definitionLink 2101101 - Disclosure - NATURE OF OPERATIONS AND PRESENTATION OF FINANCIAL STATEMENTS link:presentationLink link:calculationLink link:definitionLink 2402401 - Disclosure - NATURE OF OPERATIONS AND PRESENTATION OF FINANCIAL STATEMENTS (Details) link:presentationLink link:calculationLink link:definitionLink 2103102 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 2204201 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 2405402 - Disclosure - SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) link:presentationLink link:calculationLink link:definitionLink 2106103 - Disclosure - BUSINESS ACQUISITIONS link:presentationLink link:calculationLink link:definitionLink 2307301 - Disclosure - BUSINESS ACQUISITIONS (Tables) link:presentationLink link:calculationLink link:definitionLink 2408403 - Disclosure - BUSINESS ACQUISITIONS - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 2409404 - Disclosure - BUSINESS ACQUISITIONS - Consideration Exchanged (Details) link:presentationLink link:calculationLink link:definitionLink 2410405 - Disclosure - BUSINESS ACQUISITIONS - Acquired Identifiable Assets and Assumed Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 2411406 - Disclosure - BUSINESS ACQUISITIONS - Consideration Allocated to Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2412407 - Disclosure - BUSINESS ACQUISITIONS - Pro Forma Financial Information (Details) link:presentationLink link:calculationLink link:definitionLink 2113104 - Disclosure - REVENUE link:presentationLink link:calculationLink link:definitionLink 2314302 - Disclosure - REVENUE (Tables) link:presentationLink link:calculationLink link:definitionLink 2415408 - Disclosure - REVENUE - Net Revenue Earned by Category of Payer (Details) link:presentationLink link:calculationLink link:definitionLink 2116105 - Disclosure - EMPLOYEE BENEFIT PLANS link:presentationLink link:calculationLink link:definitionLink 2417409 - Disclosure - EMPLOYEE BENEFIT PLANS (Details) link:presentationLink link:calculationLink link:definitionLink 2118106 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 2319303 - Disclosure - INCOME TAXES Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 2420410 - Disclosure - INCOME TAXES - Income Tax Benefit (Details) link:presentationLink link:calculationLink link:definitionLink 2421411 - Disclosure - INCOME TAXES - Income Tax Reconciliation (Details) link:presentationLink link:calculationLink link:definitionLink 2422412 - Disclosure - INCOME TAXES - Deferred Income Tax Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 2423413 - Disclosure - INCOME TAXES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2424414 - Disclosure - INCOME TAXES - Valuation Allowance for Deferred Tax Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2125107 - Disclosure - (LOSS) EARNINGS PER SHARE link:presentationLink link:calculationLink link:definitionLink 2326304 - Disclosure - (LOSS) EARNINGS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 2427415 - Disclosure - (LOSS) EARNINGS PER SHARE (Details) link:presentationLink link:calculationLink link:definitionLink 2128108 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 2329305 - Disclosure - LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 2430416 - Disclosure - LEASES - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 2431417 - Disclosure - LEASES - Maturities of Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 2431417 - Disclosure - LEASES - Maturities of Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 2132109 - Disclosure - PROPERTY AND EQUIPMENT link:presentationLink link:calculationLink link:definitionLink 2333306 - Disclosure - PROPERTY AND EQUIPMENT (Tables) link:presentationLink link:calculationLink link:definitionLink 2434418 - Disclosure - PROPERTY AND EQUIPMENT (Details) link:presentationLink link:calculationLink link:definitionLink 2135110 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS link:presentationLink link:calculationLink link:definitionLink 2336307 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS (Tables) link:presentationLink link:calculationLink link:definitionLink 2437419 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 2438420 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Carrying Amount of Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 2439421 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Carrying Amount and Accumulated Amortization of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2440422 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Future Amortization Expense of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 2141111 - Disclosure - INDEBTEDNESS link:presentationLink link:calculationLink link:definitionLink 2342308 - Disclosure - INDEBTEDNESS (Tables) link:presentationLink link:calculationLink link:definitionLink 2443423 - Disclosure - INDEBTEDNESS - Summary of Debt (Details) link:presentationLink link:calculationLink link:definitionLink 2443423 - Disclosure - INDEBTEDNESS - Summary of Debt (Details) link:presentationLink link:calculationLink link:definitionLink 2444424 - Disclosure - INDEBTEDNESS - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 2445425 - Disclosure - INDEBTEDNESS - Long-term Debt Maturities (Details) link:presentationLink link:calculationLink link:definitionLink 2446426 - Disclosure - INDEBTEDNESS - Estimated Fair Values of Debt Obligations (Details) link:presentationLink link:calculationLink link:definitionLink 2147112 - Disclosure - DERIVATIVE INSTRUMENTS link:presentationLink link:calculationLink link:definitionLink 2348309 - Disclosure - DERIVATIVE INSTRUMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 2449427 - Disclosure - DERIVATIVE INSTRUMENTS - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 2450428 - Disclosure - DERIVATIVE INSTRUMENTS - Balance Sheet Location of Derivatives (Details) link:presentationLink link:calculationLink link:definitionLink 2451429 - Disclosure - DERIVATIVE INSTRUMENTS - Pre-tax Gain (Loss) on Derivative Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 2152113 - Disclosure - FAIR VALUE MEASURMENTS link:presentationLink link:calculationLink link:definitionLink 2153114 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 2154115 - Disclosure - STOCK-BASED INCENTIVE COMPENSATION link:presentationLink link:calculationLink link:definitionLink 2355310 - Disclosure - STOCK-BASED INCENTIVE COMPENSATION Stock-Based Incentive Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 2456430 - Disclosure - STOCK-BASED INCENTIVE COMPENSATION (Details) link:presentationLink link:calculationLink link:definitionLink 2457431 - Disclosure - STOCK-BASED INCENTIVE COMPENSATION - Assumptions Used to Compute Fair Value of Stock Options (Details) link:presentationLink link:calculationLink link:definitionLink 2458432 - Disclosure - STOCK-BASED INCENTIVE COMPENSATION - Summary of Stock Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 2459433 - Disclosure - STOCK-BASED INCENTIVE COMPENSATION - Summary of Outstanding and Exercisable Stock Options (Details) link:presentationLink link:calculationLink link:definitionLink 2460434 - Disclosure - STOCK-BASED INCENTIVE COMPENSATION - Summary of Restricted Stock Award Activity (Details) link:presentationLink link:calculationLink link:definitionLink 2461435 - Disclosure - STOCK-BASED INCENTIVE COMPENSATION - Fair Value of Awards (Details) link:presentationLink link:calculationLink link:definitionLink 2162116 - Disclosure - STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 2463436 - Disclosure - STOCKHOLDERS' EQUITY (Details) link:presentationLink link:calculationLink link:definitionLink 2164117 - Disclosure - RELATED-PARTY TRANSACTIONS link:presentationLink link:calculationLink link:definitionLink 2465437 - Disclosure - RELATED-PARTY TRANSACTIONS (Details) link:presentationLink link:calculationLink link:definitionLink 2166118 - Disclosure - SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) link:presentationLink link:calculationLink link:definitionLink 2367311 - Disclosure - SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) (Tables) link:presentationLink link:calculationLink link:definitionLink 2468438 - Disclosure - SELECTED QUARTERLY FINANCIAL DATA (UNAUDITED) (Details) link:presentationLink link:calculationLink link:definitionLink 2169119 - Disclosure - SUBSEQUENT EVENTS link:presentationLink link:calculationLink link:definitionLink 2470439 - Disclosure - SUBSEQUENT EVENTS (Details) link:presentationLink link:calculationLink link:definitionLink