| Standard label: | Insurance Type and Tier Identifier [Axis] |
| Name: | us-gaap:ScheduleOfMalpracticeInsuranceTypeAndTierIdentifierAxis |
| Documentation: | Information by type of insurance coverage or layer of insurance that covers malpractice claims. |
| Object type: | cm:Axis |
| Data type: | Text/String (xbrli:stringItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | true |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:ScheduleOfMalpracticeInsuranceTypeAndTierIdentifierAxis |
| Label | Role | Language |
| Insurance Type and Tier Identifier [Axis] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 954 450 50 1 | http://fasb.org/us-gaap/role/ref/legacyRef | 954 |
| FASB Accounting Standards Codification 954 720 50 1 | http://fasb.org/us-gaap/role/ref/legacyRef | 954 |
| FASB Accounting Standards Codification 954 720 50 2 | http://fasb.org/us-gaap/role/ref/legacyRef | 954 |
| FASB Accounting Standards Codification 954 720 50 3 | http://fasb.org/us-gaap/role/ref/legacyRef | 954 |