| Standard label: | Cash Surrender Value [Member] |
| Name: | us-gaap:CashSurrenderValueMember |
| Documentation: | Cash that could be realized under a life insurance contract or contracts owned by the Company (for example, but not limited to corporate-owned life insurance (COLI) or bank-owned life insurance (BOLI)). |
| Object type: | cm:Member |
| Data type: | [Member] (nonnum:domainItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | true |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:CashSurrenderValueMember |
| Label | Role | Language |
| Cash Surrender Value [Member] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 944 210 S99 1 (SX 210.7-03(14)(a)) | http://fasb.org/us-gaap/role/ref/legacyRef | 944 |