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NOTES PAYABLE AND OTHER DEBT (Credit Facilities) (Details) (USD $)
0 Months Ended 12 Months Ended 0 Months Ended
Sep. 24, 2014
Aug. 17, 2012
Jun. 28, 2013
subsidiary
Dec. 31, 2014
Dec. 28, 2012
Sep. 20, 2012
Jan. 30, 2015
subsidiary
Feb. 25, 2015
Dec. 17, 2014
May 30, 2013
Jul. 22, 2014
Nov. 26, 2013
Nov. 25, 2013
Sep. 30, 2013
subsidiary
Oct. 26, 2012
Jul. 31, 2013
Line of Credit Facility [Line Items]                                
Repayment of debt $ 4,500,000.0us-gaap_RepaymentsOfDebt                              
Proceeds from issuance of debt 500,000us-gaap_ProceedsFromIssuanceOfDebt                              
Restricted assets related to the loan       300,000adk_DebtInstrumentRestrictedAssets                        
Contemporary Healthcare Senior Loan                                
Line of Credit Facility [Line Items]                                
Debt instrument, outstanding amount       200,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= adk_ContemporaryHealthcareSeniorLoanMember
                       
Proceeds from issuance of debt   600,000us-gaap_ProceedsFromIssuanceOfDebt
/ us-gaap_DebtInstrumentAxis
= adk_ContemporaryHealthcareSeniorLoanMember
                           
Senior debt - guaranteed by USDA
                               
Line of Credit Facility [Line Items]                                
Restricted assets related to the loan       1,800,000adk_DebtInstrumentRestrictedAssets
/ us-gaap_DebtInstrumentAxis
= adk_SeniorDebtUSDAMember
                       
Gemino Northwest Credit Facility                                
Line of Credit Facility [Line Items]                                
Maximum borrowing capacity     1,500,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= adk_GeminoNorthwestCreditFacilityMember
            1,000,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= adk_GeminoNorthwestCreditFacilityMember
           
Monitoring fee as a percentage of outstanding balance       1.00%adk_CollateralMonitoringFeeAsPercentageOfOutstandingBalance
/ us-gaap_DebtInstrumentAxis
= adk_GeminoNorthwestCreditFacilityMember
                       
Fee as percent of unused portion of debt       0.50%adk_DebtInstrumentFeeAsPercentOfUnusedPortionOfDebt
/ us-gaap_DebtInstrumentAxis
= adk_GeminoNorthwestCreditFacilityMember
                       
Prepayment penalties (as a percent)       1.00%adk_DebtInstrumentPrepaymentPenaltiesPercentage
/ us-gaap_DebtInstrumentAxis
= adk_GeminoNorthwestCreditFacilityMember
                       
Number of wholly owned subsidiaries that entered into the loan agreement     2adk_NumberOfWhollyOwnedSubsidiariesEnteredIntoLoanAgreement
/ us-gaap_DebtInstrumentAxis
= adk_GeminoNorthwestCreditFacilityMember
                         
Northwest Credit Facility                                
Line of Credit Facility [Line Items]                                
Outstanding amount       1,300,000us-gaap_LineOfCreditFacilityAmountOutstanding
/ us-gaap_DebtInstrumentAxis
= adk_NorthwestCreditFacilityMember
                       
Gemino Bonterra Credit Facility                                
Line of Credit Facility [Line Items]                                
Maximum borrowing capacity           2,000,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= adk_GeminoBonterraCreditFacilityMember
                   
Outstanding amount       1,300,000us-gaap_LineOfCreditFacilityAmountOutstanding
/ us-gaap_DebtInstrumentAxis
= adk_GeminoBonterraCreditFacilityMember
                       
PrivateBank Credit Facility                                
Line of Credit Facility [Line Items]                                
Maximum borrowing capacity 9,100,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= adk_NewPrivateBankCreditFacilityMember
        10,600,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= adk_NewPrivateBankCreditFacilityMember
    8,815,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= adk_NewPrivateBankCreditFacilityMember
  3,800,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= adk_NewPrivateBankCreditFacilityMember
3,500,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= adk_NewPrivateBankCreditFacilityMember
2,500,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= adk_NewPrivateBankCreditFacilityMember
  2,500,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_DebtInstrumentAxis
= adk_NewPrivateBankCreditFacilityMember
 
Spread on floating interest rate (as a percent)           1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= adk_NewPrivateBankCreditFacilityMember
                   
Number of subsidiaries released from debt liability                           3adk_NumberOfSubsidiariesReleasedFromDebtLiability
/ us-gaap_DebtInstrumentAxis
= adk_NewPrivateBankCreditFacilityMember
   
Outstanding amount       3,000,000us-gaap_LineOfCreditFacilityAmountOutstanding
/ us-gaap_DebtInstrumentAxis
= adk_NewPrivateBankCreditFacilityMember
                       
Variable interest rate floor (as a percent)           5.00%adk_DebtInstrumentVariableInterestRateFloor
/ us-gaap_DebtInstrumentAxis
= adk_NewPrivateBankCreditFacilityMember
                   
Maturity period           3 years                    
Letters of credit       3,800,000us-gaap_LettersOfCreditOutstandingAmount
/ us-gaap_DebtInstrumentAxis
= adk_NewPrivateBankCreditFacilityMember
  700,000us-gaap_LettersOfCreditOutstandingAmount
/ us-gaap_DebtInstrumentAxis
= adk_NewPrivateBankCreditFacilityMember
                   
Non-utilization fee percentage of the unused portion of the available credit           0.50%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
/ us-gaap_DebtInstrumentAxis
= adk_NewPrivateBankCreditFacilityMember
                   
Repayment of debt         700,000us-gaap_RepaymentsOfDebt
/ us-gaap_DebtInstrumentAxis
= adk_NewPrivateBankCreditFacilityMember
                     
PrivateBank Credit Facility | Letter of Credit [Member]                                
Line of Credit Facility [Line Items]                                
Maximum borrowing capacity                               2,500,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_LetterOfCreditMember
/ us-gaap_DebtInstrumentAxis
= adk_NewPrivateBankCreditFacilityMember
Loan agreement with Private Bank                                
Line of Credit Facility [Line Items]                                
Repayment of debt           2,000,000us-gaap_RepaymentsOfDebt
/ us-gaap_DebtInstrumentAxis
= adk_PrivateBankLoanMember
                   
LIBOR | Gemino Northwest Credit Facility                                
Line of Credit Facility [Line Items]                                
Spread on floating interest rate (as a percent)       4.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= adk_GeminoNorthwestCreditFacilityMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
                       
Minimum                                
Line of Credit Facility [Line Items]                                
Number of credit facilities outstanding       40adk_NumberOfCreditFacilitiesOutstanding
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
                       
Minimum | Senior debt - guaranteed by USDA                                
Line of Credit Facility [Line Items]                                
Spread on floating interest rate (as a percent)       1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= adk_SeniorDebtUSDAMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
                       
Prepayment penalties (as a percent)       6.00%adk_DebtInstrumentPrepaymentPenaltiesPercentage
/ us-gaap_DebtInstrumentAxis
= adk_SeniorDebtUSDAMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
                       
Variable interest rate floor (as a percent)       5.50%adk_DebtInstrumentVariableInterestRateFloor
/ us-gaap_DebtInstrumentAxis
= adk_SeniorDebtUSDAMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
                       
Minimum | LIBOR | Gemino Bonterra Credit Facility                                
Line of Credit Facility [Line Items]                                
Spread on floating interest rate (as a percent)           4.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= adk_GeminoBonterraCreditFacilityMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
                   
Maximum | Senior debt - guaranteed by USDA                                
Line of Credit Facility [Line Items]                                
Spread on floating interest rate (as a percent)       1.75%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= adk_SeniorDebtUSDAMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
                       
Prepayment penalties (as a percent)   9.00%adk_DebtInstrumentPrepaymentPenaltiesPercentage
/ us-gaap_DebtInstrumentAxis
= adk_SeniorDebtUSDAMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
  8.00%adk_DebtInstrumentPrepaymentPenaltiesPercentage
/ us-gaap_DebtInstrumentAxis
= adk_SeniorDebtUSDAMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
                       
Variable interest rate floor (as a percent)       6.00%adk_DebtInstrumentVariableInterestRateFloor
/ us-gaap_DebtInstrumentAxis
= adk_SeniorDebtUSDAMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
                       
Maximum | LIBOR | Gemino Bonterra Credit Facility                                
Line of Credit Facility [Line Items]                                
Spread on floating interest rate (as a percent)           5.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_DebtInstrumentAxis
= adk_GeminoBonterraCreditFacilityMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
                   
Senior secured revolving line of credit | Woodland Nursing and Glenvue Nursing Credit Facility [Member] | Private Bank | Revolving Credit Facility [Member]                                
Line of Credit Facility [Line Items]                                
Maximum borrowing capacity 1,500,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_PrivateBankMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_WoodlandNursingandGlenvueNursingCreditFacilityMember
                             
Outstanding amount       1,100,000us-gaap_LineOfCreditFacilityAmountOutstanding
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_PrivateBankMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_WoodlandNursingandGlenvueNursingCreditFacilityMember
                       
Non-utilization fee percentage of the unused portion of the available credit 0.50%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_PrivateBankMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_WoodlandNursingandGlenvueNursingCreditFacilityMember
                             
Number of facilities 2adk_DebtInstrumentCollateralNumberofSkilledNursingFacilities
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_PrivateBankMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_WoodlandNursingandGlenvueNursingCreditFacilityMember
                             
Fixed interest rate (as a percent) 5.00%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_PrivateBankMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_WoodlandNursingandGlenvueNursingCreditFacilityMember
                             
Loan processing fee 11,250us-gaap_DebtInstrumentFeeAmount
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_PrivateBankMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_WoodlandNursingandGlenvueNursingCreditFacilityMember
                             
Senior secured revolving line of credit | Prime Rate [Member] | Woodland Nursing and Glenvue Nursing Credit Facility [Member] | Private Bank | Revolving Credit Facility [Member]                                
Line of Credit Facility [Line Items]                                
Spread on floating interest rate (as a percent) 1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= us-gaap_RevolvingCreditFacilityMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_PrivateBankMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_WoodlandNursingandGlenvueNursingCreditFacilityMember
/ us-gaap_VariableRateAxis
= us-gaap_PrimeRateMember
                             
Subsequent Event                                
Line of Credit Facility [Line Items]                                
Number of wholly owned subsidiaries that entered into the loan agreement             2adk_NumberOfWhollyOwnedSubsidiariesEnteredIntoLoanAgreement
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
                 
Subsequent Event | Metro City Bank                                
Line of Credit Facility [Line Items]                                
Repayment of debt             9,000,000.0us-gaap_RepaymentsOfDebt
/ us-gaap_LineOfCreditFacilityAxis
= adk_MetroCityBankMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
                 
Subsequent Event | Senior secured revolving line of credit | Sumter Valley and Georgetown | Private Bank | Secured Debt                                
Line of Credit Facility [Line Items]                                
Maximum borrowing capacity             9,300,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_PrivateBankMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_SumterValleyAndGeorgetownMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
                 
Number of wholly owned subsidiaries that entered into the loan agreement             2adk_NumberOfWhollyOwnedSubsidiariesEnteredIntoLoanAgreement
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_PrivateBankMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_SumterValleyAndGeorgetownMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
                 
Subsequent Event | Senior secured revolving line of credit | Little Rock Northridge and Woodland Hills and Abington Place Health and Rehab Center | Private Bank | Secured Debt                                
Line of Credit Facility [Line Items]                                
Maximum borrowing capacity               12,000,000.0us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_PrivateBankMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_LittleRockNorthridgeAndWoodlandHillsAndAbingtonPlaceHealthAndRehabCenterMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
               
Spread on floating interest rate (as a percent)               4.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_PrivateBankMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_LittleRockNorthridgeAndWoodlandHillsAndAbingtonPlaceHealthAndRehabCenterMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
               
Repayment of debt               12,000,000.0us-gaap_RepaymentsOfDebt
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_PrivateBankMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_LittleRockNorthridgeAndWoodlandHillsAndAbingtonPlaceHealthAndRehabCenterMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
               
Subsequent Event | Senior secured revolving line of credit | LIBOR | Sumter Valley and Georgetown | Private Bank | Secured Debt                                
Line of Credit Facility [Line Items]                                
Spread on floating interest rate (as a percent)             4.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_PrivateBankMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_SumterValleyAndGeorgetownMember
/ us-gaap_SubsequentEventTypeAxis
= us-gaap_SubsequentEventMember
/ us-gaap_VariableRateAxis
= us-gaap_LondonInterbankOfferedRateLIBORMember
                 
Subsidiaries | Autumn Breeze Facility                                
Line of Credit Facility [Line Items]                                
Repayment of debt                 4,900,000us-gaap_RepaymentsOfDebt
/ us-gaap_CreditFacilityAxis
= adk_AutumnBreezeFacilityMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
             
Subsidiaries | Key Bank National Association | Secured Debt                                
Line of Credit Facility [Line Items]                                
Maximum borrowing capacity                 7,630,500us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_KeyBankNationalAssociationMember
             
Outstanding amount       7,600,000us-gaap_LineOfCreditFacilityAmountOutstanding
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_KeyBankNationalAssociationMember
                       
Proceeds from issuance of debt                 900,000us-gaap_ProceedsFromIssuanceOfDebt
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_KeyBankNationalAssociationMember
             
Fixed interest rate (as a percent)                 3.65%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_KeyBankNationalAssociationMember
             
Restricted assets related to the loan       800,000adk_DebtInstrumentRestrictedAssets
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_KeyBankNationalAssociationMember
                       
Subsidiaries | Eaglewood Care Center | Housing and Healthcare Finance, LLC | Secured Debt                                
Line of Credit Facility [Line Items]                                
Maximum borrowing capacity 5,700,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_HousingandHealthcareFinanceLLCMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_EaglewoodCareCenterMember
                             
Outstanding amount       5,700,000us-gaap_LineOfCreditFacilityAmountOutstanding
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_HousingandHealthcareFinanceLLCMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_EaglewoodCareCenterMember
                       
Proceeds from issuance of debt 600,000us-gaap_ProceedsFromIssuanceOfDebt
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_HousingandHealthcareFinanceLLCMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_EaglewoodCareCenterMember
                             
Fixed interest rate (as a percent) 3.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_HousingandHealthcareFinanceLLCMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_EaglewoodCareCenterMember
                             
Restricted assets related to the loan       300,000adk_DebtInstrumentRestrictedAssets
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_HousingandHealthcareFinanceLLCMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_EaglewoodCareCenterMember
                       
Subsidiaries | Eaglewood Care Center | Woodland Manor | Secured Debt                                
Line of Credit Facility [Line Items]                                
Repayment of debt 4,500,000us-gaap_RepaymentsOfDebt
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_WoodlandManorMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_EaglewoodCareCenterMember
                             
Subsidiaries | Glenvue Health and Rehabilitation | Housing and Healthcare Finance, LLC | Secured Debt                                
Line of Credit Facility [Line Items]                                
Maximum borrowing capacity 8,800,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_HousingandHealthcareFinanceLLCMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_GlenvueHealthandRehabilitationMember
                             
Outstanding amount       8,800,000us-gaap_LineOfCreditFacilityAmountOutstanding
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_HousingandHealthcareFinanceLLCMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_GlenvueHealthandRehabilitationMember
                       
Repayment of debt 6,300,000us-gaap_RepaymentsOfDebt
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_HousingandHealthcareFinanceLLCMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_GlenvueHealthandRehabilitationMember
                             
Proceeds from issuance of debt 1,800,000us-gaap_ProceedsFromIssuanceOfDebt
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_HousingandHealthcareFinanceLLCMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_GlenvueHealthandRehabilitationMember
                             
Fixed interest rate (as a percent) 3.75%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_HousingandHealthcareFinanceLLCMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_GlenvueHealthandRehabilitationMember
                             
Restricted assets related to the loan       400,000adk_DebtInstrumentRestrictedAssets
/ us-gaap_CreditFacilityAxis
= us-gaap_SecuredDebtMember
/ dei_LegalEntityAxis
= us-gaap_SubsidiariesMember
/ us-gaap_LineOfCreditFacilityAxis
= adk_HousingandHealthcareFinanceLLCMember
/ us-gaap_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis
= adk_GlenvueHealthandRehabilitationMember