Real Estate and Other Activities - Priory Group - Additional Information (Details) - GBP (£) £ in Millions	Jul. 01, 2026	Sep. 30, 2026
Lessor Lease Description [Line Items]
Term of lease extension, years		5 years
Priory Group [Member]
Lessor Lease Description [Line Items]
Cash rent reduction	£ 11
Term of lease extension, years	10 years

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.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479773/842-30-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479773/842-30-50-3

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Balance Type:	na
Period Type:	duration