Income Statement [Abstract] Net service revenue Health Care Organization, Patient Service Revenue Cost of service, excluding depreciation and amortization Cost of Services General and administrative expenses: General and Administrative Expense [Abstract] Salaries and benefits Labor and Related Expense Non-cash compensation Share-based Compensation Other Other General and Administrative Expense Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Securities Class Action Lawsuit settlement, net Securities Class Action Lawsuit settlement Charge related to Securities Class Action Lawsuit settlement Operating expenses Costs and Expenses Operating income Operating Income (Loss) Other income (expense): Nonoperating Income (Expense) [Abstract] Interest income Investment Income, Interest and Dividend Interest expense Interest Expense Equity in earnings from equity method investments Income (Loss) from Equity Method Investments Miscellaneous, net Other Nonoperating Income (Expense) Total other income, net Nonoperating Income (Expense) Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income tax (expense) benefit Income Tax Expense (Benefit) Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Net income attributable to Amedisys, Inc. Net Income (Loss) Attributable to Parent Basic earnings per common share: Earnings Per Share, Basic [Abstract] Net income attributable to Amedisys, Inc. common stockholders, basic (usd per share) Earnings Per Share, Basic Weighted average shares outstanding, basic (shares) Weighted Average Number of Shares Outstanding, Basic Diluted earnings per common share: Earnings Per Share, Diluted [Abstract] Net income attributable to Amedisys, Inc. common stockholders, diluted (usd per share) Earnings Per Share, Diluted Weighted average shares outstanding, diluted (shares) Weighted Average Number of Shares Outstanding, Diluted Segment Reporting [Abstract] Schedule of Operating Income of Reportable Segments Schedule of Segment Reporting Information, by Segment [Table Text Block] Number of reportable business segments Number of Reportable Segments Debt Disclosure [Abstract] Line of Credit Facility [Table] Line of Credit Facility [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Consolidated Leverage Ratio: Greater Than 3.00 to 1.0 Debt Instrument, By Leverage Ratio, Tranche One [Member] Debt Instrument, By Leverage Ratio, Tranche One [Member] Consolidated Leverage Ratio: Less Than Equal To 3.00 to 1.0 but Greater Than 2.00 to 1.0 Debt Instrument, By Leverage Ratio, Tranche Two [Member] Debt Instrument, By Leverage Ratio, Tranche Two [Member] Consolidated Leverage Ratio: Less Than Equal to 2.00 to 1.0 but Greater Than 1.00 to 1.0 Debt Instrument, By Leverage Ratio, Tranche Three [Member] Debt Instrument, By Leverage Ratio, Tranche Three [Member] Consolidated Leverage Ratio: Less Than Equal to 1.00 to 1.0 Debt Instrument, By Leverage Ratio, Tranche Four [Member] Debt Instrument, By Leverage Ratio, Tranche Four [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] Eurodollar [Member] Eurodollar [Member] Base Rate [Member] Base Rate [Member] Lender Name [Axis] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Consolidated Leverage Ratio Consolidated Leverage Ratio Consolidated Leverage Ratio Commitment fee percentage Line of Credit Facility, Commitment Fee Percentage Letter Of Credit Fee Letter Of Credit Fee The fee, expressed as a percentage of the letters of credit, for the letters of credit Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Term Loan Loans Payable [Member] Promissory Notes [Member] Promissory Notes [Member] Promissory Notes [Member] Capital Lease Obligations [Member] Capital Lease Obligations [Member] Revolving Credit Facility [Member] Revolving Credit Facility [Member] 100 Million Term Loan One Hundred Million Term Loan [Member] 100 Million Term Loan [Member] 200 Million Revolving Credit Facility Two Hundred Million Revolving Credit Facility [Member] Two Hundred Million Revolving Credit Facility [Member] 550 Million Revolving Credit Facility [Member] Five Hundred Fifty Million Revolving Credit Facility [Member] Five Hundred Fifty Million Revolving Credit Facility [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Principal amount Long-term Debt, Gross Deferred debt issuance costs Debt Issuance Costs, Net Long-term obligations, including current portion Long-term Debt Current portion of long-term obligations Long-term Debt, Current Maturities Long-term obligations, less current portion Long-term Debt, Excluding Current Maturities Term Loan [Member] Term Loan [Member] Term Loan [Member] Debt instrument, face amount Debt Instrument, Face Amount Maturity Date Debt Instrument, Maturity Date Statement of Cash Flows [Abstract] Cash Flows from Operating Activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization 401(k) employer match Pension Cost (Reversal of Cost) Loss on disposal of property and equipment Gain (Loss) on Disposition of Property Plant Equipment Deferred income taxes Deferred Income Tax Expense (Benefit) Equity in earnings from equity method investments Amortization of deferred debt issuance costs Amortization of Debt Issuance Costs and Discounts Write off of deferred debt issuance costs Deferred Debt Issuance Costs Written Off The amount of deferred debt issuance costs written off during the period. Return on equity investment Proceeds from Equity Method Investment, Distribution Changes in operating assets and liabilities, net of impact of acquisitions: Increase (Decrease) in Operating Capital [Abstract] Patient accounts receivable Increase (Decrease) in Accounts Receivable Other current assets Increase (Decrease) in Prepaid Expense and Other Assets Other assets Increase (Decrease) in Other Operating Assets Accounts payable Increase (Decrease) in Accounts Payable Securities Class Action Lawsuit settlement accrual, net IncreaseDecreaseInSecuritiesClassActionLawsuitSettlementAccrual Increase Decrease In Securities Class Action Lawsuit settlement accrual Accrued expenses Increase (Decrease) in Accrued Liabilities Other long-term obligations Increase (Decrease) in Other Noncurrent Liabilities Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash Flows from Investing Activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Proceeds from sale of deferred compensation plan assets Proceeds from Sale of Restricted Investments Proceeds from the sale of property and equipment Proceeds from Sale of Property, Plant, and Equipment Purchase of investment Payments to Acquire Investments Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Acquisitions of businesses, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash Flows from Financing Activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from issuance of stock upon exercise of stock options and warrants Proceeds from Stock Options Exercised Proceeds from issuance of stock to employee stock purchase plan Proceeds from Stock Plans Shares withheld upon stock vesting Payments Related to Tax Withholding for Share-based Compensation Non-controlling interest distribution Cash Distribution To Noncontrolling Interest Payment of dividends or other distributions to noncontrolling interest holders. Proceeds from borrowings under revolving line of credit Proceeds from Short-term Debt Principal payments of long-term obligations Repayments of Long-term Debt Debt issuance costs Payments of Financing Costs Purchase of company stock Payments for Repurchase of Common Stock Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Net (decrease) increase in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of period Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Supplemental Disclosures of Cash Flow Information: Supplemental Cash Flow Information [Abstract] Cash paid for interest Interest Paid Cash paid for income taxes, net of refunds received Income Taxes Paid, Net Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Patient accounts receivable Accounts Receivable, Net, Current Prepaid expenses Prepaid Expense, Current Other current assets Other Assets, Current Total current assets Assets, Current Property and equipment, net of accumulated depreciation of $101,128 and $146,814 Property, Plant and Equipment, Net Goodwill Goodwill Intangible assets, net of accumulated amortization of $31,864 and $30,610 Intangible Assets, Net (Excluding Goodwill) Deferred income taxes Deferred Tax Assets, Net of Valuation Allowance Other assets, net Other Assets, Noncurrent Total assets Assets LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Current liabilities: Liabilities, Current [Abstract] Accounts payable Accounts Payable, Current Payroll and employee benefits Employee-related Liabilities, Current Accrued expenses Accrued Liabilities, Current Current portion of long-term obligations Long-term Debt and Capital Lease Obligations, Current Total current liabilities Liabilities, Current Long-term obligations, less current portion Long-term Debt and Capital Lease Obligations Other long-term obligations Other Liabilities, Noncurrent Total liabilities Liabilities Commitments and Contingencies—Note 5 Commitments and Contingencies Equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Preferred stock, $0.001 par value, 5,000,000 shares authorized; none issued or outstanding Preferred Stock, Value, Outstanding Common stock, $0.001 par value, 60,000,000 shares authorized; 36,044,177 and 35,747,134 shares issued; and 31,801,357 and 33,964,767 shares outstanding Common Stock, Value, Outstanding Additional paid-in capital Additional Paid in Capital, Common Stock Treasury stock, at cost 4,242,820 and 1,782,367 shares of common stock Treasury Stock, Value Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Retained earnings Retained Earnings (Accumulated Deficit) Total Amedisys, Inc. stockholders’ equity Stockholders' Equity Attributable to Parent Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Total equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Total liabilities and equity Liabilities and Equity SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Accounting Policies [Abstract] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type [Domain] Property, Plant and Equipment, Type [Domain] Building and leasehold improvements Building And Leasehold Improvements [Member] Building And Leasehold Improvements [Member] Equipment and furniture Equipment And Furniture [Member] Equipment And Furniture [Member] Computer software Software and Software Development Costs [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property and equipment, gross Property, Plant and Equipment, Gross Less: accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Property and equipment Organization, Consolidation and Presentation of Financial Statements [Abstract] NATURE OF OPERATIONS, CONSOLIDATION AND PRESENTATION OF FINANCIAL STATEMENTS Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] LONG-TERM OBLIGATIONS Debt Disclosure [Text Block] Revenue Recognition, Multiple-deliverable Arrangements [Table] Revenue Recognition, Multiple-deliverable Arrangements [Table] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Medicare Revenue Medicare Revenue [Member] Revenue from sale of goods and services rendered, in relation to Medicare, during the normal course of business, when it serves as a benchmark in a concentration of risk calculation. Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Domain] Concentration Risk Benchmark [Domain] Net Service Revenue Sales Revenue, Services, Net [Member] Cap Year [Axis] Cap Year [Axis] Cap Year [Axis] Cap Year [Domain] Cap Year [Domain] Cap Year [Domain] Cap Year 2013 Through 2018 Cap Year Two Thousand Thirteen Through Two Thousand Eighteen [Member] Cap Year Two Thousand Thirteen Through Two Thousand Eighteen [Member] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Home Health Home Health [Member] Home Health [Member] Hospice Hospice [Member] Hospice [Member] Revenue Recognition, Multiple-deliverable Arrangements [Line Items] Revenue Recognition, Multiple-deliverable Arrangements [Line Items] Percent of net services revenue Concentration Risk, Percentage Episode of care as episodic-based revenue (days) Episode Of Care As Episodic Based Revenue Duration Description containing the number of days in a home health episode of care. Net service revenue episode payment rate (days) Net Service Revenue, Episode Payment Rate Duration Description containing the number of days from the date the request for anticipated payment was received in which the final bill must be submitted to Medicare. Percentage of total reimbursement of outlier payment Percentage Of Total Reimbursement Of Outlier Payment Percentage at which total reimbursement is capped if cost of care is unusually costly. Low utilization payment adjustment, maximum number of visits Low Utilization Payment Adjustment Number Of Visits Description containing the visit threshold for a low utilization payment adjustment. First threshold of therapy services required (visits) First Threshold Of Therapy Services Required Description containing the number of visits related to the first threshold of therapy services required. Second threshold of therapy services required (visits) Second Threshold Of Services Required Description containing the number of visits related to the second threshold of therapy services required. Third threshold of therapy services required (visits) Third Threshold Of Therapy Services Required Description containing the number of visits related to the third threshold of therapy services required. Historical collection rate from Medicare Historical Collection Rate From Medicare Historical collection rate from Medicare. Non-Medicare revenue term rates Non-Medicare Revenue Term Rates Non-Medicare Revenue Term Rates as a percentage of Medicare Term Rates Hospice Medicare revenue rate accounted for routine care Hospice Medicare Revenue Rate Accounted For Routine Care Description containing the percentage of the entity's Hospice net Medicare service revenue that is derived from routine care. Estimated amounts due back to Medicare Estimated Amount Due Back To Medicare In Other Accrued Liabilities Estimate of obligations due Medicare upon demand due to overages for the inpatient cap and/or overall payment cap. Document And Entity Information [Abstract] Document And Entity Information [Abstract] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Trading Symbol Trading Symbol Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Weighted average number of shares outstanding - basic (shares) Effect of dilutive securities: Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract] Stock options (shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Non-vested stock and stock units (shares) Non Vested Stock And Stock Units Non vested stock and stock units. Weighted average number of shares outstanding - diluted (shares) Anti-dilutive securities (shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Property and equipment, accumulated depreciation Intangible assets, accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Preferred stock, par value (usd per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, authorized (shares) Preferred Stock, Shares Authorized Preferred stock, issued (shares) Preferred Stock, Shares Issued Preferred stock, outstanding (shares) Preferred Stock, Shares Outstanding Common stock, par value (usd per share) Common Stock, Par or Stated Value Per Share Common stock, authorized (shares) Common Stock, Shares Authorized Common stock, issued (shares) Common Stock, Shares, Issued Common stock, outstanding (shares) Common Stock, Shares, Outstanding Treasury stock at cost (shares) Treasury Stock, Shares Equity [Abstract] SHARE REPURCHASE Treasury Stock [Text Block] Business Combinations [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Noncompete Agreements [Member] Noncompete Agreements [Member] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Tennessee [Member] TENNESSEE Personal Care Personal Care [Member] Personal Care [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Christian Care at Home Christian Care At Home [Member] Christian Care At Home [Member] East Tennessee Personal Care Services East Tennessee Personal Care Services [Member] East Tennessee Personal Care Services [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Percentage of shares outstanding Percentage of shares outstanding Percentage of shares outstanding Payments to acquire business Payments to Acquire Businesses, Gross Goodwill recorded during period Goodwill, Acquired During Period Acquisition, number of care centers acquired Number of Businesses Acquired Acquisition, other intangibles recorded Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Weighted-average amortization period Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Swing Line Loan [Member] Swing Line Loan [Member] Swing Line Loan [Member] Letter of Credit [Member] Letter of Credit [Member] Prior Credit Agreement [Member] Prior Credit Agreement [Member] Prior Credit Agreement [Member] Credit Agreement [Member] Credit Agreement [Member] Credit Agreement [Member] Line of Credit [Member] Line of Credit [Member] Weighted average interest rate (percent) Long-term Debt, Weighted Average Interest Rate, over Time Consolidated leverage ratio Total Leverage Ratio Ratio of debt to earnings before interest, taxes, depreciation and amortization. Consolidated interest coverage ratio Consolidated Interest Coverage Ratio Ratio of adjusted earnings before interest, taxes, depreciation and amortization to cash interest charges Credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Revolving Credit Facility Total Revolving Credit Facility Total Credit facility, maximum additional borrowing capacity Line Of Credit Facility Additional Borrowing Capacity Line Of Credit Facility Additional Borrowing Capacity Credit facility, maximum allowable consolidated leverage ratio multiple Credit facility, maximum allowable consolidated leverage ratio multiple Credit facility, maximum allowable consolidated leverage ratio multiple Principal payments of long-term obligations Additional interest rate above Federal Fund rate Debt Instrument Interest Additional Interest Above Federal Fund Rate Debt Instrument Interest Additional Interest Above Federal Fund Rate Additional interest rate above Eurodollar rate Debt Instrument Interest Additional Interest Above Eurodollar Rate Debt Instrument Interest Additional Interest Above Eurodollar Rate Percentage of consolidated revenue and adjusted EBITDA that guarantor wholly-owned subsidiaries represent Percentage Of Revenue And Of Earnings Before Interest Taxes Depreciation And Amortization From Wholly Owned Subsidiaries Percentage of consolidated net revenues and adjusted EBITDA that guarantor wholly-owned subsidiaries represent Percentage of adjusted EBITDA that guarantor subsidiaries represent Percentage Of Earnings Before Interest Taxes Depreciation And Amortization From Subsidiaries Percentage of adjusted EBITDA that guarantor subsidiaries represent Deferred debt issuance cost Debt Issuance Costs, Line of Credit Arrangements, Gross Remaining availability under revolving credit facility Line of Credit Facility, Remaining Borrowing Capacity Outstanding letters of credit Letters of Credit Outstanding, Amount Description of variable rate basis Debt Instrument, Description of Variable Rate Basis Schedule of Long-Term Debt Schedule of Long-term Debt Instruments [Table Text Block] Schedule of Commitment Fee Under Credit Facilities Schedule of Line of Credit Facilities [Table Text Block] Subsequent Events [Abstract] SUBSEQUENT EVENT Subsequent Events [Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Other Other Segments [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] General and administrative expenses General and Administrative Expense Operating expenses Concentration Risk [Table] Concentration Risk [Table] Organization, Consolidation and Presentation of Financial Statements [Line Items] Concentration Risk [Line Items] Number of owned and operated care centers Operating Care Centers Description containing the number of care centers owned by the entity as of the balance sheet date. Number of states with facilities Number of States in which Entity Operates Minimum ownership percentage for controlling interest (percent) Minimum Percent Ownership For Controlling Interest Percent Description containing the percentage ownership required in order for a variable interest entity (VIE) to be consolidated in the entity's financial statements. Maximum ownership percentage for equity method investment (percent) Maximum Percent Ownership For Equity Method Percent Description containing the percentage ownership required in order for an investment to be treated under the equity method of accounting in the entity's financial statements. Equity method investment, aggregate cost Equity Method Investment, Aggregate Cost Maximum ownership percentage for cost method investment (percent) Maximum Percent Ownership For Cost Method Percent Description containing the percentage ownership required in order for an investment to be treated under the cost method of accounting in the entity's financial statements. Commitments and Contingencies Disclosure [Abstract] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] Adjustments for New Accounting Pronouncements [Axis] Adjustments for New Accounting Pronouncements [Axis] Type of Adoption [Domain] Type of Adoption [Domain] ASU 2014-09 Accounting Standards Update 2014-09 [Member] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] As Previously Reported Scenario, Previously Reported [Member] Adjustment for the Adoption of ASC 606 Restatement Adjustment [Member] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Condensed Consolidated Balance Sheets Balance Sheet Related Disclosures [Abstract] Allowance for doubtful accounts Allowance for Doubtful Accounts Receivable Condensed Consolidated Statements of Operations Income Statement Related Disclosures [Abstract] Provision for doubtful accounts Provision for Doubtful Accounts Condensed Consolidated Statements of Cash Flows Subsequent Event [Table] Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Total purchase price for acquisition Business Combination, Consideration Transferred Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Reclassifications and Comparability Comparability of Prior Year Financial Data, Policy [Policy Text Block] Principles of Consolidation Consolidation, Policy [Policy Text Block] Equity Investments Equity and Cost Method Investments, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Patient Accounts Receivable Trade and Other Accounts Receivable, Policy [Policy Text Block] Property and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Fair Value of Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Weighted-Average Shares Outstanding Earnings Per Share, Policy [Policy Text Block] Customer Concentration Risk Customer Concentration Risk [Member] Accounts Receivable Accounts Receivable [Member] Customer [Axis] Customer [Axis] Customer [Domain] Customer [Domain] Single Payor Major Single Payor Customer [Member] Major Single Payor Customer [Member] Concentration Risk [Line Items] Concentration risk (percent) Percentage of patient receivables outstanding Percentage Of Patient Receivables Outstanding Percentage of patient receivables outstanding. Accounts receivable derived from Medicare Accounts Receivable, Portion Derived From Medicare Accounts Receivable, Portion Derived From Medicare Revenue adjustment to Medicare revenue Revenue Adjustment To Medicare Revenue Description of the provisions that reduce the amount of Medicare revenue recognized by the entity. Rate of request for anticipated payment submitted for the initial episode of care Rate Of Request For Anticipated Payment Submitted For Initial Episode Of Care Description containing the percentage of estimated payment that is requested at the start of care for an initial episode of care. Rate of request for anticipated payment submitted for subsequent episodes of care Rate Of Request For Anticipated Payment Submitted For Subsequent Episodes Of Care Description containing the percentage of estimated payment that is requested at the start of care for any subsequent episodes of care. Maximum days to submit final bill from the start of episode Maximum Days To Submit Final Bill From Start Of Episode Description containing the number of days from the start of the episode in which the final bill must be submitted to Medicare. Maximum days to submit final bill from the date the request for anticipated payment was paid Maximum Days To Submit Final Bill From Date Request For Anticipated Payment Was Paid Description containing the number of days from the date the request for anticipated payment was received in which the final bill must be submitted to Medicare. Loss Contingencies [Table] Loss Contingencies [Table] Payors [Axis] Payors [Axis] Payors [Axis] Payors [Domain] Payors [Domain] [Domain] for Payors [Axis] Company's insurance carriers [Member] Company's insurance carriers [Member] Company's insurance carriers [Member] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] US Department of Justice US Department of Justice [Member] US Department of Justice Securities Class Action Lawsuit [Member] Securities Class Action Lawsuit [Member] Securities Class Action Lawsuit [Member] Safeguard Zone Program Integrity Contractor Safeguard Zone Program Integrity Contractor [Member] Safeguard Zone Program Integrity Contractor [Member] Massachusetts MASSACHUSETTS Morgantown, West Virginia Morgantown, West Virginia [Member] Morgantown, West Virginia [Member] Parkersburg, West Virginia Parkersburg, West Virginia [Member] Parkersburg, West Virginia [Member] South Carolina SOUTH CAROLINA Florida FLORIDA Lakeland, Florida Lakeland, Florida [Member] Lakeland, Florida [Member] Clearwater, Florida Clearwater, Florida [Member] Clearwater, Florida [Member] Infinity HomeCare Infinity HomeCare [Member] Infinity HomeCare [Member] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Extrapolated Extrapolated [Member] Extrapolated [Member] Unfavorable Unfavorable [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Payments for legal settlements Payments for Legal Settlements Number of patients Number of patients Number of patients Corporate integrity agreement term (years) Corporate Integrity Agreement Term Corporate Integrity Agreement Term Loss contingency accrual Loss Contingency Accrual Settlement amount to be paid by company's insurance carriers Loss Contingency, Receivable, Current Number of beneficiaries Number of beneficiaries Number of beneficiaries who received services Recovery amount of overpayment made to subsidiary Recovery Amount Of Overpayment Made To Subsidiary Recovery amount of the overpayment made to the subsidiary. Recovery amount of overpayment made to subsidiary including interest Recovery Amount of Overpayment Made To Subsidiary Including Interest Recovery amount of overpayment made to subsidiary including interest Number of claims submitted by subsidiary Number Of Claims Submitted By Subsidiary Number of claims submitted by subsidiary. Recovery amount of over payment made to subsidiary including interest withheld Recovery Amount Of Over Payment Made To Subsidiary Including Interest Withheld Recovery amount of over payment made to subsidiary including interest withheld Indemnity receivable related to amounts withheld prior to August 2009 Loss Contingency, Receivable, Noncurrent, Related To Amounts Withheld Prior To August 2009 Loss Contingency, Receivable, Noncurrent, Related To Amounts Withheld Prior To August 2009 Indemnity receivable Loss Contingency, Receivable, Noncurrent Actual claims payment Actual Claims Payment Actual Claims Payment Error rate (percent) Error Rate Percentage Error Rate Percentage Indemnification amount Indemnification Amount The amount to be reimbursed if and when certain assumed liabilities are paid Florida ZPIC revenue reduction Florida Zpic Revenue Reduction Reduction in revenue as a result of the Florida ZPIC audit Health insurance retention limit Health Insurance Retention Limit Maximum potential amount of future payments the entity could be required to make related to a specific Health Insurance Claim. Workers compensation insurance retention limit Workers Compensation Insurance Retention Limit Maximum potential amount of future payments the entity could be required to make related to a specific Workers' Compensation Insurance Claim. Professional liability insurance retention limit Professional Liability Insurance Retention Limit Maximum potential amount of future payments the entity could be required to make related to a specific Professional Liability Claim. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Share Repurchase [Abstract] Share Repurchase [Abstract] Share Repurchase [Table] Share Repurchase [Table] Share Repurchase [Table] Share Repurchase [Axis] Share Repurchase [Axis] Share Repurchase [Axis] Share Repurchase [Domain] Share Repurchase [Domain] [Domain] for Share Repurchase [Axis] KKR Share Repurchase [Member] KKR Share Repurchase [Member] KKR Share Repurchase [Member] Share Repurchase [Line Items] Share Repurchase [Line Items] [Line Items] for Share Repurchase [Table] Treasury Stock, shares, acquired Treasury Stock, Shares, Acquired Purchase of company stock Discounted closing stock price Discounted Closing Stock Price Discounted closing stock price Percentage of closing stock price Percentage of Closing Stock Price Percentage of Closing Stock Price ACQUISITIONS Business Combination Disclosure [Text Block] Schedule of Effect of Adoption of ASC 606 Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block] Schedule of Property and Equipment Property, Plant and Equipment [Table Text Block] Schedule of Weighted-Average Shares Outstanding Schedule of Weighted Average Number of Shares [Table Text Block]