| Standard label: | Earnings Per Share Policy, Basic |
| Name: | us-gaap:EarningsPerSharePolicyBasic |
| Documentation: | Discloses the methodology and assumptions used to compute basic earnings or loss per share for each class of common stock and participating security. |
| Object type: | cm:Concept |
| Data type: | Text/String (xbrli:stringItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:EarningsPerSharePolicyBasic |
| Label | Role | Language |
| Earnings Per Share Policy, Basic | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 235 10 50 3 | http://fasb.org/us-gaap/role/ref/legacyRef | 235 |
| FASB Accounting Standards Codification 980 10 05 1 | http://fasb.org/us-gaap/role/ref/legacyRef | 980 |