| Standard label: | Amortization of ESOP Award |
| Name: | us-gaap:AmortizationOfESOPAward |
| Documentation: | Value of shares committed to be released under an Employee Stock Ownership Plan (ESOP). |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Credit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:AmortizationOfESOPAward |
| Label | Role | Language |
| Amortization of ESOP Award | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 718 40 25 13 | http://fasb.org/us-gaap/role/ref/legacyRef | 718 |
| Part Of Roll Up: |
| us-gaap:StockholdersEquityPeriodIncreaseDecrease |