XML 57 R47.htm IDEA: XBRL DOCUMENT
v3.20.2

The CARES Act - Additional Information (Detail) - CARES Act [Member] - USD ($) $ in Millions |  | 3 Months Ended
--- | --- | ---
Apr. 24, 2020 | Jun. 30, 2020
CARES Act [Line Items] |  |
Offer of eligible relief amount |  | $ 100,000.0
Additional offer of eligible relief amount | $ 75,000.0 |
Income related to funds received under CARES Act |  | $ 18.1
Medicare [Member] |  |
CARES Act [Line Items] |  |
Percentage of increase in medicare reimbursement rate |  | 2.00%
Public Health and Social Services Emergency Fund [Member] | Medicare [Member] |  |
CARES Act [Line Items] |  |
Receipt of CARES Act of 2020 aid amount |  | $ 20.0
CMS’ Accelerated and Advance Payment Program [Member] | Medicare [Member] |  |
CARES Act [Line Items] |  |
Amount of advance payment received |  | $ 45.0

X
- Definition Additional relief to eligible health care providers. + References No definition available. + Details
Name: | achc_AdditionalReliefToEligibleHealthCareProviders
Namespace Prefix: | achc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of advance payment received under the CARES Act. + References No definition available. + Details
Name: | achc_AmountOfAdvancePaymentReceived
Namespace Prefix: | achc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition CARES Act. + References No definition available. + Details
Name: | achc_CARESActLineItems
Namespace Prefix: | achc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Income related to funds received under CARES Act. + References No definition available. + Details
Name: | achc_IncomeRelatedToFundsReceivedUnderCARESAct
Namespace Prefix: | achc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Received relief amount from U.S. government for eligible healthcare providers under the CARES Act. + References No definition available. + Details
Name: | achc_InitialReliefReceived
Namespace Prefix: | achc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of increase in medicare reimbursement rate. + References No definition available. + Details
Name: | achc_PercentageOfIncreaseInMedicareReimbursementRate
Namespace Prefix: | achc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The U.S. government offer of relief to eligible healthcare providers as part of the CARES Act. + References No definition available. + Details
Name: | achc_TotalReliefToEligibleHealthcareProviders
Namespace Prefix: | achc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_UnusualOrInfrequentItemAxis=achc_CoronavirusAidReliefAndEconomicSecurityActMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_MajorCustomersAxis=achc_MedicareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis=achc_PublicHealthAndSocialServicesEmergencyFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoansInsuredOrGuaranteedByGovernmentAuthoritiesAxis=achc_CentersForMedicareAndMedicaidServicesCARESActAcceleratedAndAdvancePaymentProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |