XML 77 R64.htm IDEA: XBRL DOCUMENT
v3.25.4

Leases - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024
Loss on Impairment [Member] |  |
Lessee Lease Description [Line Items] |  |
Non-cash operating lease right-of-use asset impairment charge related to closure of facilities | $ 1.0 | $ 1.4
Minimum [Member] |  |
Lessee Lease Description [Line Items] |  |
Lessee operating and finance lease term of contract | 5 years |
Maximum [Member] |  |
Lessee Lease Description [Line Items] |  |
Lessee operating and finance lease term of contract | 30 years |
Copiers and Equipment [Member] | Minimum [Member] |  |
Lessee Lease Description [Line Items] |  |
Lessee operating and finance lease term of contract | 1 year |
Copiers and Equipment [Member] | Maximum [Member] |  |
Lessee Lease Description [Line Items] |  |
Lessee operating and finance lease term of contract | 3 years |

X
- Definition Lessee operating and finance lease term of contract. + References No definition available. + Details
Name: | achc_LesseeOperatingAndFinanceLeaseTermOfContract
Namespace Prefix: | achc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 7A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-7A Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-3 + Details
Name: | us-gaap_LesseeLeaseDescriptionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of loss from impairment of right-of-use asset from operating lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 25 -Paragraph 6 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479365/842-20-25-6 + Details
Name: | us-gaap_OperatingLeaseImpairmentLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_IncomeStatementLocationAxis=achc_LossOnImpairmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=achc_CopiersAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |