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v3.25.2

Segments (Narrative) (Details) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
VITAS [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percentage of segment revenue | 64.00% | 63.00% | 63.00% | 61.00%
Roto-Rooter [Member] |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Percentage of segment revenue | 36.00% | 37.00% | 37.00% | 39.00%

X
- Definition Percentage of total revenue by each segment. + References No definition available. + Details
Name: | che_PercentageOfSegmentRevenue
Namespace Prefix: | che_
Data Type: | dtr-types:percentItemType
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 No definition available. + Details
Name: | us-gaap_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=che_SegmentVitasMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=che_SegmentRotoRooterMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |