| Standard label: | Premiums Receivable, Net |
| Name: | us-gaap:PremiumsReceivableAtCarryingValue |
| Documentation: | The carrying amount as of the balance sheet date due the entity from (a) agents and insureds, (b) uncollected premiums and (c) others, net of the allowance for doubtful accounts. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | As Of (instant) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:PremiumsReceivableAtCarryingValue |
| Label | Role | Language |
| Premiums Receivable, Net | http://www.xbrl.org/2003/role/label | en-US |
| Premiums Receivable, Net, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 944 210 S99 1 (SX 210.7-03.(a),5) | http://fasb.org/us-gaap/role/ref/legacyRef | 944 |