Restructuring and Related Activities [Abstract] EXIT AND RESTRUCTURING ACTIVITIES Restructuring and Related Activities Disclosure [Text Block] Income Tax Disclosure [Abstract] Income Tax Examination [Table] Income Tax Examination [Table] Income Tax Authority [Axis] Income Tax Authority [Axis] Income Tax Authority [Domain] Income Tax Authority [Domain] Federal [Member] Domestic Tax Authority [Member] State and Local Jurisdiction [Member] State and Local Jurisdiction [Member] Tax Credit Carryforward [Axis] Tax Credit Carryforward [Axis] Tax Credit Carryforward, Name [Domain] Tax Credit Carryforward, Name [Domain] Alternative Minimum Tax Credit [Member] Alternative Minimum Tax Credit [Member] Alternative Minimum Tax Credit [Member] Research And Development Tax Credit [Member] Research And Development Tax Credit [Member] Research And Development Tax Credit [Member] Employment Tax Credit [Member] Employment Tax Credit [Member] Employment Tax Credit [Member] State Tax Credit [Member] State Tax Credit [Member] State Tax Credit [Member] Unrecognized Tax Benefits [Axis] Unrecognized Tax Benefits [Axis] Unrecognized Tax Benefits [Axis] Unrecognized Tax Benefits [Domain] Unrecognized Tax Benefits [Domain] Unrecognized Tax Benefits [Domain] Net Operating Loss [Member] Net Operating Loss [Member] Net Operating Loss [Member] Tax Credit Carryforward [Member] Tax Credit Carryforward [Member] Tax Credit Carryforward [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Other Long Term Obligations [Member] Other Long Term Obligations [Member] Other Long Term Obligations [Member] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Maximum [Member] Maximum [Member] Income Tax Disclosure [Line Items] Income Tax Examination [Line Items] Recognized share-based compensation tax benefit Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount Effective Income Tax Rate Reconciliation, Share-based Compensation, Excess Tax Benefit, Amount Decrease in deferred income tax expense from remeasurement of deferred taxes due to change in tax rate (Tax Cuts and Jobs Act) Tax Cuts and Jobs Act of 2017, Change in Tax Rate, Income Tax Expense (Benefit) Amount of income tax expense (benefit) for remeasurement of deferred tax from change in tax rate pursuant to Tax Cuts and Jobs Act of 2017. Income tax receivable Income Taxes Receivable, Current Tax credits Income Tax Credits and Adjustments Refund tax year Refund Tax Year Refund Tax Year Reduction in uncertain tax positions from change in enacted tax rate Unrecognized Tax Benefits Decreases Resulting From Change In Statutory Tax Rate Unrecognized Tax Benefits Decreases Resulting From Change In Statutory Tax Rate Uncertain tax benefits accrued Unrecognized Tax Benefits Net operating loss carryforwards Operating Loss Carryforwards Valuation allowance Deferred Tax Assets, Valuation Allowance Net change in total valuation allowance Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount Interest and penalties recognized related to uncertain income tax positions Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense Interest and penalties accrued related to uncertain income tax positions Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued Number of individual states subject to income taxes Number of Individual States Subject To Income Tax Number of individual states subject to income tax Tax years open to examination Open Tax Year Goodwill and Intangible Assets Disclosure [Abstract] Schedule of Goodwill [Table] Schedule of Goodwill [Table] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] Home Health [Member] Home Health [Member] Home Health [Member] Hospice [Member] Hospice [Member] Hospice [Member] Personal Care [Member] Personal Care [Member] Personal Care [Member] Goodwill [Line Items] Goodwill [Line Items] Goodwill [Roll Forward] Goodwill [Roll Forward] Beginning balance Goodwill Additions Goodwill, Acquired During Period Adjustments related to acquisitions Goodwill, Purchase Accounting Adjustments Ending balance Accounting Policies [Abstract] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Related Party Transactions [Abstract] RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] CAPITAL SOCK AND SHARE-BASED COMPENSATION Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Debt Disclosure [Abstract] Line of Credit Facility [Table] Line of Credit Facility [Table] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Consolidated Leverage Ratio: Greater Than Equal To 2.75 to 1.0 Debt Instrument, By Leverage Ratio, Tranche One [Member] Debt Instrument, By Leverage Ratio, Tranche One [Member] Consolidated Leverage Ratio: Less than 2.75 to 1.0 but Greater Than Equal To 1.75 to 1.0 Debt Instrument, By Leverage Ratio, Tranche Two [Member] Debt Instrument, By Leverage Ratio, Tranche Two [Member] Consolidated Leverage Ratio: Less Than 1.75 to 1.0 but Greater Than Equal To 0.75 to 1.0 Debt Instrument, By Leverage Ratio, Tranche Three [Member] Debt Instrument, By Leverage Ratio, Tranche Three [Member] Consolidated Leverage Ratio: Less Than 0.75 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] ABR [Member] Base Rate [Member] Eurodollar [Member] Eurodollar [Member] Line of Credit Facility [Line Items] Line of Credit Facility [Line Items] Consolidated Leverage Ratio Consolidated Leverage Ratio Consolidated Leverage Ratio Margin on Loans Debt Instrument, Basis Spread on Variable Rate Commitment Fee 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 Schedule of Long-Term Debt Schedule of Long-term Debt Instruments [Table Text Block] Schedule of Maturities of Long-Term Debt Schedule of Maturities of Long-term Debt [Table Text Block] Schedule of Commitment Fee Under Credit Facilities Schedule of Line of Credit Facilities [Table Text Block] 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] Commitments and Contingencies Disclosure [Abstract] Schedule of Future Minimum Rental Commitments Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Schedule of Insurance Programs Insurance Programs Table [Table Text Block] Insurance Programs Details, Table Employee Stock Purchase Plan shares issued (shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Price per Employee Stock Purchase Plan share issued (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Per Share Weighted Average Price of Shares Purchased 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 Provision for doubtful accounts Provision for Doubtful Accounts Depreciation and amortization Depreciation And Amortization For Continuing Operations Depreciation And Amortization For Continuing Operations Asset impairment charge Asset Impairment Charges 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 (loss) 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 (loss) before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Income tax expense Income Tax Expense (Benefit) Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Net income (loss) attributable to Amedisys, Inc. Net Income (Loss) Attributable to Parent Basic earnings per common share: Earnings Per Share, Basic [Abstract] Income (loss) attributable to Amedisys, Inc. common stockholders (usd per share) Earnings Per Share, Basic Weighted average shares outstanding (shares) Weighted Average Number of Shares Outstanding, Basic Diluted earnings per common share: Earnings Per Share, Diluted [Abstract] Income (loss) attributable to Amedisys, Inc. common stockholders (usd per share) Earnings Per Share, Diluted Weighted average shares outstanding (shares) Weighted Average Number of Shares Outstanding, Diluted Summary of Activity Related to Goodwill and Other Intangible Assets Net Schedule of Intangible Assets and Goodwill [Table Text Block] Schedule of Estimated Aggregate Future Amortization Expense Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Statement of Comprehensive Income [Abstract] Net income (loss) Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income attributable to non-controlling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income (loss) attributable to Amedisys, Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares [Roll Forward] Non-vested stock options beginning balance (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares Granted (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Vested (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares Forfeited (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Number of Shares Non-vested stock options ending balance (shares) Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Non-vested stock options beginning balance (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value Granted (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Vested (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Weighted Average Grant Date Fair Value Forfeited (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested Options Forfeited, Weighted Average Grant Date Fair Value Non-vested stock options ending balance (usd per share) Equity [Abstract] Stock repurchase program, authorized amount Stock Repurchase Program, Authorized Amount Stock repurchase program, expiration date Stock Repurchase Program Expiration Date Shares repurchased (shares) Treasury Stock, Shares, Acquired Shares repurchased, aggregate cost Treasury Stock, Value, Acquired, Cost Method Shares repurchased, weighted average price per share (usd per share) Treasury Stock Acquired, Average Cost Per Share Income from continuing operations Interest expense Income Tax Effects Allocated to Interest Expense The tax effect of items occuring during the period that have been charged or credited directly to interest expense Goodwill Income Tax Effects Allocated to Goodwill The tax effect of items occuring during the period that have been charged or credited directly to goodwill Stockholders’ equity Income Tax Effects Allocated Directly to Equity, Other Total income tax expense allocation Income Tax Expense (Benefit), Intraperiod Tax Allocation Quarterly Financial Information Disclosure [Abstract] Schedule of Unaudited Summarized Quarterly Financial Information Quarterly Financial Information [Table Text Block] Statement of Stockholders' Equity [Abstract] Statement [Table] Statement [Table] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Common Stock Common Stock [Member] Additional Paid-in Capital Additional Paid-in Capital [Member] Treasury Stock Treasury Stock [Member] Accumulated Other Comprehensive Loss (Income) AOCI Attributable to Parent [Member] Retained Earnings (Deficit) Retained Earnings [Member] Noncontrolling Interests Noncontrolling Interest [Member] Statement [Line Items] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance, Stockholders Equity Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Balance (in shares) Shares, Outstanding Issuance of stock - employee stock purchase plan Stock Issued During Period, Value, Employee Stock Purchase Plan Issuance of stock - employee stock purchase plan (shares) Issuance of stock - 401 (k) plan Stock Issued During Period Value Four Zero One K Employer Match Value of stock issued during the period to employees as employer's matching contribution to the company's 401(K) plan Issuance of stock - 401 (k) plan (shares) Stock Issued During Period Shares Four Zero One K Employer Match Number of shares issued during the period to employees as employer's matching contribution to the company's 401(K) plan Issuance/(cancellation) of non-vested stock Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Issuance/(cancellation) of non-vested stock (shares) Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised Exercise of stock options (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Non-cash compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Tax benefit from stock options exercised and restricted stock vesting Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation Tax deficit from stock options exercised and restricted stock vesting Adjustments to Additional Paid in Capital, Income Tax Deficiency from Share-based Compensation Surrendered shares Surrendered Shares Shares of common stock surrendered by certain employees to satisfy obligations in connection with the vesting of stock. Shares held in Treasury Stock at cost. Shares repurchased Noncontrolling interest distribution Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Assets contributed to equity investment Equity Impact Of Increase Decrease In Assets Of Equity Method Investment Equity Impact Of Increase Decrease In Assets Of Equity Method Investment Net income (loss) Balance, Stockholders Equity Balance (in shares) Valuation and Qualifying Accounts [Abstract] VALUATION AND QUALIFYING ACCOUNTS Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Statement of Financial Position [Abstract] Patient accounts receivable, allowance for doubtful accounts Allowance for Doubtful Accounts Receivable, Current Property and equipment, accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment 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 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 2016-09 [Member] Accounting Standards Update 2016-09 [Member] Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Reclassification [Member] Restatement Adjustment [Member] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Other assets, net Other Assets, Noncurrent Deferred tax assets Deferred Income Tax Assets, Net Retained earnings (deficit) Retained Earnings (Accumulated Deficit) Tax benefit from stock options exercised and restricted stock vesting Excess Tax Benefit from Share-based Compensation, Financing Activities 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 Entity Public Float Entity Public Float Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Percentage of patient receivables outstanding Percentage Of Patient Receivables Outstanding Percentage of patient receivables outstanding. Historical collection rate from Medicare Historical Collection Rate From Medicare Historical collection rate from Medicare. Minimum days for accounts receivable outstanding to be fully reserved Minimum Days Accounts Receivable Outstanding Fully Reserved The number of days required before a patient accounts receivable must be outstanding to be fully reserved. Portion of accounts receivable derived from Medicare Portion Of Patient Accounts Receivable Derived From Medicare Description containing the percentage of the entity's net patient accounts receivable that is 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. Segment Reporting [Abstract] Number of reportable business segments Number of Reportable Segments Schedule of Operating Income of Reportable Segments Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Equity Award [Domain] Equity Award [Domain] Share-Based Awards [Member] Share-Based Awards [Member] Share-Based Awards Share Based Awards to More Than Ten Percent Owner [Member] Share Based Awards To More Than Ten Percent Owner [Member] Share-based awards to any owner of 10% or more of our total combined voting power of us and our subsidiaries Stock Option [Member] Employee Stock Option [Member] Non-Vested Stock [Member] Non-Vested Stock [Member] Service-Based Non-Vested Stock Non-Vested Stock Units [Member] Non Vested Stock Units [Member] Non Vested Stock Units [Member] Non-Vested Stock Units - Service-Based [Member] Non Vested Stock Units Service [Member] Non-Vested Stock Units - Service-Based and Performance-Based [Member] Non-Vested Stock Units - Service-Based and Performance-Based [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Percentage of ownership in subsidiaries Percentageofownershipinsubsidiaries Percentage of ownership in subsidiaries Equity-based awards, number of shares authorized (shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Equity-based awards, shares available for grant (shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Fair value of share of common stock (percent) Fairvalueofshareofcommonstockpercentage Fair value of a share of common stock, percentage Percentage of total combined voting power of the Company and subsidiaries Percentageoftotalcombinedvotingpowerofthecompanyandoursubsidiaries Percentage of total combined voting power of the Company and our subsidiaries Contractual term of share-based award Share-based Compensation Arrangement by Share-based Payment Award, Terms of Award Percentage of market value for purchases under Employee Stock Purchase Program (percent) Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date Common stock authorized for issuance under Employee Stock Purchase Plan (shares) Common Stock Shares Authorized For Issuance To Employee Stock Purchase Plan Number of shares authorized for issuance to the Company's employee stock purchase plan Employee Stock Purchase Plan expense Employee Stock Ownership Plan (ESOP), Compensation Expense Options granted (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Stock compensation expense Allocated Share-based Compensation Expense Intrinsic value of options outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Intrinsic value of options exerciseable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Intrinsic value of options exercised during the period Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Unrecognized compensation expense Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Unrecognized compensation expense weighted-average period for recognitions (years) Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Non-vested stock granted, weighted average grant date fair value (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Vesting period of equity-based awards Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Performance-based award, target number of units to be received (shares) Performance Based Award Target Share Amount Number of stock units authorized for achievement of targeted performance Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Non-vested, beginning balance (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Vested (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Canceled, forfeited or expired (shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Non-vested, ending balance (shares) Weighted Average Grant Date Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Non-vested, beginning balance (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted (usd per share) Vested (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Canceled, forfeited or expired (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Non-vested, ending balance (usd per share) Loss Contingencies [Table] Loss Contingencies [Table] Litigation Case [Axis] Litigation Case [Axis] Litigation Case [Domain] Litigation Case [Domain] US Department of Justice [Member] US Department of Justice [Member] US Department of Justice Wage and Hour Litigation [Member] Wage And Hour Litigation [Member] Wage And Hour Litigation [Member] Frontier Litigation [Member] Frontier Litigation [Member] Frontier Litigation Securities Class Action Lawsuit [Member] Securities Class Action Lawsuit [Member] Securities Class Action Lawsuit [Member] Computer Inventory And Data Security Reporting [Member] Computer Inventory And Data Security Reporting [Member] Computer Inventory And Data Security Reporting OIG Self-Disclosure [Member] OIG Self-Disclosure [Member] OIG Self-Disclosure matters Safeguard Zone Program Integrity Contractor [Member] Safeguard Zone Program Integrity Contractor [Member] Safeguard Zone Program Integrity Contractor [Member] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] Massachusetts [Member] MASSACHUSETTS Morgantown, West Virginia [Member] Morgantown, West Virginia [Member] Morgantown, West Virginia [Member] Parkersburg, West Virginia [Member] Parkersburg, West Virginia [Member] Parkersburg, West Virginia [Member] Connecticut [Member] CONNECTICUT Illinois [Member] ILLINOIS South Carolina [Member] SOUTH CAROLINA Florida [Member] FLORIDA Lakeland, Florida [Member] Lakeland, Florida [Member] Lakeland, Florida [Member] Clearwater, Florida [Member] Clearwater, Florida [Member] Clearwater, Florida [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Infinity HomeCare [Member] Infinity HomeCare [Member] Infinity HomeCare [Member] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Extrapolated [Member] Extrapolated [Member] Extrapolated [Member] Unfavorable [Member] Unfavorable [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Number of patients Number of patients Number of patients Number of former employees who filled a putative collective and class action complaint Loss Contingency, Number of Plaintiffs Settlement awarded to other party Litigation Settlement, Amount Awarded to Other Party Loss contingency accrual Loss Contingency Accrual Payments for legal settlements Payments for Legal Settlements Number of care centers sold Number Of Care Centers Sold Number of care centers sold during the period. Settlement amount to be paid by Company's insurance carriers Loss Contingency, Receivable, Current Corporate integrity agreement term (years) Corporate Integrity Agreement Term Corporate Integrity Agreement Term Threshold of individuals in data breach Threshold of Individuals in Data Breach Threshold of number of individuals involved in a data breach Year of departure Year of Departure Year of departure from the company Number of beneficiaries Number of beneficiaries Number of beneficiaries who received services Recovery amount of the overpayment made to the 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 Patient accounts receivable Accounts Receivable, Net, Current Operating lease term (years) Operating Lease Term Years Operating lease term, years Operating leases rent expense Operating Leases, Rent Expense 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. Retirement Benefits [Abstract] Employer match amount Defined Contribution Plan Employer Matching Contribution Defined contribution plan employer matching contribution. Employee contribution amount Defined Contribution Plan Employee Contribution For Employee Matching Program Defined Contribution Plan Employee Contribution For Employer Matching Program Maximum percentage of employee salary eligible for employer match (percent) Defind Contribution Plan Maximum Annual Match Per Employee Salary Percentage Maximum Percentage of Employee Salary Eligible for Employer Match 401(k) expense recognized Defined Contribution Plan, Cost 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 [Member] Loans Payable [Member] Revolving Credit Facility [Member] Line of Credit [Member] 100 Million Term Loan [Member] One Hundred Million Term Loan [Member] 100 Million Term Loan [Member] 200 Million Revolving Credit Facility [Member] Two Hundred Million Revolving Credit Facility [Member] Two Hundred Million Revolving Credit Facility [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Principal amount Debt Instrument, Face Amount Basis spread on variable rate (percent) Maturity date Debt Instrument, Maturity Date ASSETS Assets [Abstract] Current assets: Assets, Current [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Patient accounts receivable, net of allowance for doubtful accounts of $20,866, and $17,716 Prepaid expenses Prepaid Expense, Current Other current assets Other Assets, Current Total current assets Assets, Current Property and equipment, net of accumulated depreciation of $146,814 and $138,650 Property, Plant and Equipment, Net Goodwill Intangible assets, net of accumulated amortization of $30,610 and $27,864 Intangible Assets, Net (Excluding Goodwill) Deferred income taxes 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, Current Maturities Total current liabilities Liabilities, Current Long-term obligations, less current portion Long-term Debt, Excluding Current Maturities Other long-term obligations Other Liabilities, Noncurrent Total liabilities Liabilities Commitments and Contingencies 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; 35,747,134, and 35,253,577 shares issued; and 33,964,767 and 33,597,215 shares outstanding Common Stock, Value, Outstanding Additional paid-in capital Additional Paid in Capital, Common Stock Treasury stock at cost 1,782,367, and 1,656,362 shares of common stock Treasury Stock, Value Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Total Amedisys, Inc. stockholders’ equity Stockholders' Equity Attributable to Parent Noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Total equity Total liabilities and equity Liabilities and Equity Promissory Notes [Member] Promissory Notes [Member] Promissory Notes [Member] 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 Minimum Rental Commitments Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2018 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2019 Operating Leases, Future Minimum Payments, Due in Two Years 2020 Operating Leases, Future Minimum Payments, Due in Three Years 2021 Operating Leases, Future Minimum Payments, Due in Four Years 2022 Operating Leases, Future Minimum Payments, Due in Five Years Future years Operating Leases, Future Minimum Payments, Due Thereafter Total Operating Leases, Future Minimum Payments Due Schedule of Estimated Useful Lives of Property and Equipment Estimated Useful Lives Of Property And Equipment [Text Block] stimated Useful Lives Of Property And Equipment, table Schedule of Property and Equipment Property, Plant and Equipment [Table Text Block] Schedule of Financial Instruments Where Carrying Value and Fair Value Differ Financial Instrument Details [Table Text Block] Financial instrument details, table. Schedule of Weighted-Average Shares Outstanding Schedule of Weighted Average Number of Shares [Table Text Block] Schedule of Valuation and Qualifying Accounts Valuation and Qualifying Accounts Table [Table Text Block] A schedule of allowance and reserve accounts including their beginning and ending balances, as well as a reconciliation by type of activity during the period. Revenue Recognition, Multiple-deliverable Arrangements [Table] Revenue Recognition, Multiple-deliverable Arrangements [Table] Cap Year [Axis] Cap Year [Axis] Cap Year [Axis] Cap Year [Domain] Cap Year [Domain] Cap Year [Domain] Cap Year 2013 Through 2018 [Member] Cap Year Two Thousand Thirteen Through Two Thousand Eighteen [Member] Cap Year Two Thousand Thirteen Through Two Thousand Eighteen [Member] Cap Year 2013 Through 2017 [Member] Cap Year Two Thousand Thirteen Through Two Thousand Seventeen [Member] Cap Year Two Thousand Thirteen Through Two Thousand Seventeen [Member] Revenue Recognition, Multiple-deliverable Arrangements [Line Items] Revenue Recognition, Multiple-deliverable Arrangements [Line Items] 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 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. Episodes in progress that begin during reporting period, days Episodes In Progress That Begin During Reporting Period Description containing the number of days in an episode of care. 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. Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Restructuring Type [Axis] Restructuring Type [Axis] Type of Restructuring [Domain] Type of Restructuring [Domain] Lease Termination [Member] Lease Termination [Member] Lease Termination [Member] Employee Severance [Member] Employee Severance [Member] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Restructuring reserve, beginning balance Restructuring Reserve Charges Restructuring Charges Cash expenditures Payments for Restructuring Restructuring reserve, ending balance Schedule of Reserve Activity Restructuring and Related Costs [Table Text Block] Current income tax expense/(benefit): Current Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Current Federal Tax Expense (Benefit) State and local Current State and Local Tax Expense (Benefit) Current income tax expense (benefit) Current Income Tax Expense (Benefit) Deferred income tax expense/(benefit): Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Federal Deferred Federal Income Tax Expense (Benefit) State and local Deferred State and Local Income Tax Expense (Benefit) Foreign Deferred Foreign Income Tax Expense (Benefit) Deferred income tax expense (benefit) Deferred Income Tax Expense (Benefit) Income tax expense Revenue Net income (loss) attributable to Amedisys, Inc. Income (loss) attributable to Amedisys, Inc. common stockholders - basic (usd per share) Income (loss) attributable to Amedisys, Inc. common stockholders - diluted (usd per share) Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Quarterly Financial Information [Line Items] Segment Reporting Information [Line Items] Legal fees, net of income taxes Legal Fees, Net Of Income Taxes Legal Fees, Net Of Income Taxes Transaction-related expenses for acquisitions, net of income taxes Business Acquisition, Transaction Costs, Net Of Income Taxes Business Acquisition, Transaction Costs, Net Of Income Taxes Restructuring charges, net of income taxes Restructuring Charges, Net Of Income Taxes Restructuring Charges, Net Of Income Taxes Effect of Tax Cuts and Jobs Act of 2017, net of income taxes Tax Cuts And Jobs Act Of 2017, Transition Tax Expense (Benefit), Net Tax Cuts And Jobs Act Of 2017, Transition Tax Expense (Benefit), Net Software implementation costs, net of income taxes Software Implementation Costs, Net Of Income Taxes Software Implementation Costs, Net Of Income Taxes Asset impairment charge, net of income taxes Asset Impairment Charges, Net Of Income Taxes Asset Impairment Charges, Net Of Income Taxes Deferred tax assets: Components of Deferred Tax Assets [Abstract] Allowance for doubtful accounts Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts Accrued payroll & employee benefits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Other Workers’ compensation Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Workers Compensation Deferred tax assets tax deferred expense compensation and benefits workers compensation Amortization of intangible assets Deferred Tax Assets Goodwill And Intangible Assets The cumulative amount of the estimated future tax effects attributable to the difference between the tax basis of intangible assets and the basis of intangible assets computed in accordance with generally accepted accounting principles. The difference in basis, whether due to amortization or other reasons, will increase future taxable income when such difference reverses. Share-based compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Net operating loss carryforwards Deferred Tax Assets, Other Loss Carryforwards Tax credit carryforwards Deferred Tax Assets, Tax Credit Carryforwards Other Deferred Tax Assets, Other Gross deferred tax assets Deferred Tax Assets, Gross Less: valuation allowance Net deferred tax assets Deferred Tax Assets, Net of Valuation Allowance Deferred tax (liabilities): Components of Deferred Tax Liabilities [Abstract] Property and equipment Deferred Tax Liabilities, Property, Plant and Equipment Deferred revenue Deferred Tax Liabilities, Tax Deferred Income Investment in partnerships Deferred Tax Liabilities, Investment in Noncontrolled Affiliates Other liabilities Deferred Tax Liabilities, Other Gross deferred tax liabilities Deferred Tax Liabilities, Net Net deferred tax assets (liabilities) Deferred Tax Assets, Net 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 Method Investments [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, 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] Goodwill and Other Intangible Assets Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Debt Issuance Costs Debt Issuance Costs Policy [Policy Text Block] Disclosure of accounting policy for debt issuance costs. Fair Value of Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Share-Based Compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Weighted-Average Shares Outstanding Earnings Per Share, Policy [Policy Text Block] Advertising Costs Advertising Costs, Policy [Policy Text Block] Recently Issued Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Details Of Certain Balance Sheet Accounts [Abstract] Schedule of Other Current Assets Schedule of Other Current Assets [Table Text Block] Schedule of Other Assets Schedule of Other Assets [Table Text Block] Schedule of Accrued Expenses Schedule of Accrued Liabilities [Table Text Block] Schedule of Other Liabilities Schedule of Other Assets and Other Liabilities [Table Text Block] Long-Term Obligations, Fiscal Year Maturity Long-term Debt, Fiscal Year Maturity [Abstract] 2018 Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 2019 Long-term Debt, Maturities, Repayments of Principal in Year Two 2020 Long-term Debt, Maturities, Repayments of Principal in Year Three 2021 Long-term Debt, Maturities, Repayments of Principal in Year Four 2022 Long-term Debt, Maturities, Repayments of Principal in Year Five Total Restructuring Plan [Axis] Restructuring Plan [Axis] Restructuring Plan [Domain] Restructuring Plan [Domain] 2017 Restructuring [Member] Two Thousand Seventeen Restructuring [Member] Two Thousand Seventeen Restructuring [Member] Number of care centers closed Number Of Care Centers Closed Number of operating care centers that were closed during the period. Number of care centers consolidated Number Of Care Centers Consolidated Number of operating care centers that were consolidated with care centers servicing the same market during the period. Non-cash impairment charge for write-off of intangible assets Impairment of Intangible Assets (Excluding Goodwill) Restructuring cost recognized Restructuring-related non-cash expense reduction Restructuring Reserve, Accrual Adjustment EMPLOYEE BENEFIT PLANS Pension and Other Postretirement Benefits Disclosure [Text Block] Schedule of Income Tax Provision Provision for Income Taxes [Table Text Block] Provision for Income Taxes Table Schedule of Sources of Tax Effects Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of Net Deferred Tax Assets Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of Uncertain Tax Positions Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block] Business Combinations [Abstract] ACQUISITIONS Business Combination Disclosure [Text Block] October 2012 Term Loan [Member] October Two Thousand Twelve Term Loan [Member] October Two Thousand Twelve Term Loan [Member] Second Lien Credit Agreement [Member] Second Lien Credit Agreement [Member] Second Lien Credit Agreement [Member] Swing Line Loan [Member] Swing Line Loan [Member] Swing Line Loan [Member] Letter of Credit [Member] Letter of Credit [Member] Credit Agreement [Member] Credit Agreement [Member] Credit Agreement [Member] Forecast [Member] Scenario, Forecast [Member] Base Rate [Member] Credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Amount of revolving credit facility Revolving Credit Facility Total Credit facility, maximum additional borrowing capacity Line Of Credit Facility Additional Borrowing Capacity Line Of Credit Facility Additional Borrowing Capacity Principal payments of long-term obligations Repayments of Long-term Debt Number of quarterly installments Debt Instrument Number Of Periodic Payments Debt instrument, number of quarterly installments Frequency of periodic payment Debt Instrument, Frequency of Periodic Payment Periodic principal payment Debt Instrument, Periodic Payment, Principal Description of variable rate basis Debt Instrument, Description of Variable Rate Basis Additional interest rate over Federal Funds rate (percent) Debt Instrument Interest Additional Interest Above Federal Fund Rate Debt Instrument Interest Additional Interest Above Federal Fund Rate Additional interest rate over Eurodollar Rate (percent) Debt Instrument Interest Additional Interest Above Eurodollar Rate Debt Instrument Interest Additional Interest Above Eurodollar Rate Weighted-average interest rate for five year Term Loan (percent) Weighted Average Interest Rate Availability under the revolving credit facility Line of Credit Facility, Remaining Borrowing Capacity Outstanding letters of credit Letters of Credit Outstanding, Amount Total leverage ratio Total Leverage Ratio Ratio of debt to earnings before interest, taxes, depreciation and amortization. Fixed charge coverage ratio Fixed Charge Coverage Ratio Ratio of adjusted earnings before interest, taxes , depreciation and amortization plus rent expense to certain fixed charges (interest expense, required principal payments and capital expenditures). 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 Call premium payment Call Premium Payment Call premium paid during the period Write-off of deferred debt issuance cost Write off of Deferred Debt Issuance Cost Deferred debt issuance cost Debt Issuance Costs, Line of Credit Arrangements, Gross Interest rate (percent) Debt Instrument, Interest Rate, Stated Percentage Subsequent Events [Abstract] SUBSEQUENT EVENTS Subsequent Events [Text Block] COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] Health insurance Health Insurance Health insurance, estimated liability Workers’ compensation Wokers Compensation Workers' Compensation insurance, estimated liability Professional liability Professional Liability Professional liability insurance, estimated liability Estimated Insurance Total Estimated Insurance Total Estimated insurance, total Less: long-term portion Estimated Insurance Long Term Portion Long term portion of estimated insurance Estimated Insurance Excluding Long Term Portion Estimated Insurance Excluding Long Term Portion Estimated insurance liability, excluding long-term Organization And Nature Of Operations [Table] Organization And Nature Of Operations [Table] Organization And Nature Of Operations [Line Items] Organization And Nature Of Operations [Line Items] Percent of net services revenue provided by Medicare Concentration Risk, Percentage 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 percent ownership 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. Noncontrolling interest, ownership percentage by noncontrolling owners (percent) Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 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. UNAUDITED SUMMARIZED QUARTERLY FINANCIAL INFORMATION Quarterly Financial Information [Text Block] Risk Free Rate, minimum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum Risk Free Rate, maximum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum Expected Volatility, minimum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum Expected Volatility, maximum Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Expected Term Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Weighted Average Fair Value Share Based Compensation Arrangement By Share Based Payment Award Fair Value The calculated fair value of a stock-based compensation award Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table] Schedule of Acquired Indefinite-lived Intangible Assets by Major Class [Table] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets, Major Class Name [Domain] Indefinite-lived Intangible Assets, Major Class Name [Domain] Certificates of Need and Licenses [Member] Certificates Of Need And Licenses [Member] Certificates Of Need And Licenses [Member] Acquired Names of Business [Member] Acquired Names Of Business [Member] Acquired Names Of Business [Member] 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] Intangible Assets [Line Items] Acquired Indefinite-lived Intangible Assets [Line Items] Weighted-average amortization period Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Intangible Assets [Roll Forward] Indefinite-lived Intangible Assets [Roll Forward] Beginning balance Additions Other Intangible Assets Additions Additions to Other Intangible Assets that occurred during the period Write-off Other Intangibles Write Offs Write-off of intangible assets that occurred during the period Amortization Amortization of Intangible Assets Ending balance 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 [Member] Building [Member] Leasehold Improvements [Member] Leasehold Improvements [Member] Equipment and Furniture [Member] Equipment And Furniture [Member] Equipment And Furniture [Member] Vehicles [Member] Vehicles [Member] Computer Software [Member] Software and Software Development Costs [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Useful Life Property, Plant and Equipment, Useful Life Estimated Useful Life Property, Plant and Equipment, Estimated Useful Lives Statement of Cash Flows [Abstract] Cash Flows from Operating Activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income (loss) 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) Write-off of investment Write Off Of Investment Write-off of investment. This element refers to the loss in earnings resulting from the investment write-off. Loss on disposal of property and equipment Gain (Loss) on Disposition of Property Plant Equipment Gain on sale of care centers Gain (Loss) on Disposition of Assets for Financial Service Operations Deferred income taxes Write off of deferred debt issuance costs/debt discount Deferred Debt Issuance Costs Written Off The amount of deferred debt issuance costs written off during the period. Equity in earnings from equity method investments Amortization of deferred debt issuance costs/debt discount Amortization of Debt Issuance Costs and Discounts 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 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 Purchases of deferred compensation plan assets Payments to Acquire Restricted Investments Purchases of property and equipment Payments to Acquire Property, Plant, and Equipment Purchase of investments Payments to Acquire Investments Proceeds from sale of investment Proceeds from Sale of Other Investments Acquisitions of businesses, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Proceeds from disposition of care centers Proceeds from Divestiture of Businesses 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 revolving line of credit Proceeds from Short-term Debt Repayments of revolving line of credit Repayments of Short-term Debt Proceeds from issuance of long-term obligations Proceeds from Issuance of Long-term Debt Principal payments of long-term obligations Debt issuance costs Payments of Financing Costs Purchase of company stock Payments for Repurchase of Common Stock Assets contributed to equity investment Increase Decrease In Assets Of Equity Method Investment Increase Decrease In Assets of Equity Method Investment Net cash used in financing activities Net Cash Provided by (Used in) Financing Activities Net 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 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 DETAILS OF CERTAIN BALANCE SHEET ACCOUNTS Details of Certain Balance Sheet Accounts Disclosure [Text Block] Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Outstanding, beginning balance (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Granted (shares) Exercised (shares) Canceled, forfeited or expired (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Outstanding, ending balance (shares) Exercisable (shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Outstanding, beginning balance (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Granted (usd per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Exercised (usd per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Canceled, forfeited or expired (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Outstanding, ending balance (usd per share) Exercisable (usd per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Weighted Average Contractual Life (Years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Outstanding, weighted average contractual life (years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Exercisable, weighted average contractual life (years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Other [Member] Corporate Segment [Member] Consolidation Items [Axis] Consolidation Items [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Reportable Business Segments [Member] Operating Segments [Member] Other Segment [Member] Corporate, Non-Segment [Member] Segment Reporting Information [Line Items] General and administrative expenses General and Administrative Expense Operating income (loss) Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Axis] Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] KKR Consulting [Member] KKR Consulting [Member] Care Innovations [Member] Care Innovations [Member] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Affiliated Entity [Member] Affiliated Entity [Member] Management [Member] Management [Member] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Cost incurred in related party transaction Related Party Transaction, Expenses from Transactions with Related Party Related party transaction, amount of transaction Related Party Transaction, Amounts of Transaction GOODWILL AND OTHER INTANGIBLE ASSETS, NET Goodwill and Intangible Assets Disclosure [Text Block] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Home Staff LLC [Member] Home Staff LLC [Member] Home Staff LLC [Member] Intercity Home Care [Member] Intercity Home Care [Member] Intercity Home Care [Member] Tenet Healthcare [Member] Tenet Healthcare [Member] Tenet Healthcare [Member] Associated Homecare [Member] Associated Homecare [Member] Associated Homecare [Member] Professional Profiles [Member] Professional Profiles [Member] Professional Profiles [Member] Home Health And Hospice [Member] Home Health And Hospice [Member] Home Health And Hospice [Member] Texas [Member] TEXAS Arizona [Member] ARIZONA New York [Member] NEW YORK Tennessee [Member] TENNESSEE Georgia [Member] GEORGIA Medicare Licenses [Member] Medicare licenses [Member] Medicare licenses [Member] Acquired Name of Business [Member] Acquired Name Of Business [Member] Acquired Name Of Business [Member] Schedule of Business Acquisitions, Purchase Price Allocation [Line Items] Business Acquisition [Line Items] Acquisition, number of care centers acquired Number of Businesses Acquired Acquisition, total purchase price Business Combination, Consideration Transferred Notes payable issued in acquisition Notes Payable Goodwill additions Reduction in goodwill Goodwill, Other Increase (Decrease) Acquisition, other intangibles recorded Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Acquisition, recorded other assets and liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Escrow deposit for indemnification purposes and working capital price adjustments Escrow Deposit Goodwill deductible for income tax purposes Business Acquisition, Goodwill, Expected Tax Deductible Amount Period of time goodwill is expected to be deductible for income tax purposes Goodwill, Deductible For Income Tax Purposes, Period Goodwill, Deductible For Income Tax Purposes, Period Internally developed computer software Internally Developed Computer Software Internally developed AMS3 computer software Depreciation Depreciation Amortization of deferred debt issuance costs Amortization of Debt Issuance Costs Unamortized debt issuance costs Unamortized Debt Issuance Expense Unamortized debt issuance costs, weighted average amortization period, years Unamortized Debt Issuance Cost Amortizatin Period Expected amortization period of debt issuance cost Share-based compensation, tax benefit recognized Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Advertising expense Advertising Expense Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Acquired Names [Member] Acquired Names [Member] Acquired Names [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Estimated useful life of intangible assets Finite-Lived Intangible Asset, Useful Life STOCK REPURCHASE PROGRAM Treasury Stock [Text Block] Income tax expense at U.S. federal statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent State and local income taxes, net of federal income tax benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Excess tax benefits from share-based compensation Effective Income Tax Rate Reconciliation, Excess Tax Benefit, Share-based Compensation, Percent Effective Income Tax Rate Reconciliation, Excess Tax Benefit, Share-based Compensation, Percent Valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Percent Tax credits Effective Income Tax Rate Reconciliation, Tax Credit Adjustment, Percent Effective Income Tax Rate Reconciliation, Tax Credit Adjustment, Percent Tax rate change Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent Uncertain tax positions Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Other items, net Effective Income Tax Rate Reconciliation,Other Reconciling Items, Percent Income tax expense/(benefit) Effective Income Tax Rate Reconciliation, Percent INCOME TAXES Income Tax Disclosure [Text Block] LONG-TERM OBLIGATIONS Debt Disclosure [Text Block] Weighted average number of shares outstanding – basic Effect of dilutive securities: Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract] Stock options Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Non-vested stock and stock units Non Vested Stock And Stock Units Non vested stock and stock units. Weighted average number of shares outstanding – diluted Anti-dilutive securities Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] 2018 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2019 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Five Total Finite-Lived Intangible Assets, Net SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Schedule of Employee Stock Purchase Plan Activity Schedule of Share-based Compensation, Employee Stock Purchase Plan, Activity [Table Text Block] Schedule of Share-based Payment Award Valuation Assumptions Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of Stock Options Activity Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of Non-Vested Stock Activity Schedule of Nonvested Share Activity [Table Text Block] Schedule of Non-Vested Stock Unit Activity Schedule of Nonvested Restricted Stock Units Activity [Table Text Block] Other current assets: Prepaid Expense and Other Assets, Current [Abstract] Payroll tax escrow Payroll tax escrow Payroll tax escrow Due from joint ventures Due from Joint Ventures, Current Other Other Assets, Miscellaneous, Current Other current assets Other assets: Other Assets, Noncurrent [Abstract] Workers’ compensation deposits Workers Compensation Deposits Workers Compensation Deposits Health insurance deposits Health Insurance Deposits Health Insurance Deposits Other miscellaneous deposits Other Miscellaneous Deposits Other Miscellaneous Deposits Investments Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Other Other Assets, Miscellaneous, Noncurrent Other assets Accrued expenses: Accrued Liabilities, Current [Abstract] Health insurance Accrued Insurance, Current Workers’ compensation Workers' Compensation Liability, Current Florida ZPIC audit, gross liability Provision For Liability On Regulatory Audit Provision For Liability On Regulatory Audit Legal and other settlements Legal And Other Settlements Amount of accrued expenses related to legal and other settlements Lease liability Lease Liability Amount of accrued expenses related to lease liabilities Charity care Ch