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Segment and Geographic Information - Additional Information (Detail) - Hospital		12 Months Ended
	Jan. 01, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Number of geographically organized groups		2
Number of owned and operated hospitals		182
Subsequent Event [Member]
Segment Reporting Information [Line Items]
Number of geographically organized groups	3
Reorganization Group [Member] | National Group [Member]
Segment Reporting Information [Line Items]
Number of owned and operated hospitals		96
Reorganization Group [Member] | National Group [Member] | Subsequent Event [Member]
Segment Reporting Information [Line Items]
Number of owned and operated hospitals	57
Reorganization Group [Member] | American Group [Member]
Segment Reporting Information [Line Items]
Number of owned and operated hospitals		79
Reorganization Group [Member] | American Group [Member] | Subsequent Event [Member]
Segment Reporting Information [Line Items]
Number of owned and operated hospitals	57
Reorganization Group [Member] | Atlantic Group [Member] | Subsequent Event [Member]
Segment Reporting Information [Line Items]
Number of owned and operated hospitals	61
Reorganization Group [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Number of owned and operated hospitals		(7)
Reorganization Group [Member] | Corporate and Other [Member] | Subsequent Event [Member]
Segment Reporting Information [Line Items]
Number of owned and operated hospitals	7

X

- Definition

Number of owned and operated hospitals.

+ References

No definition available.

+ Details

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8672-108599

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- 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

No definition available.

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