| Standard label: | Cumulative Effect on Retained Earnings, before Tax |
| Name: | us-gaap:CumulativeEffectOnRetainedEarningsBeforeTax1 |
| Documentation: | Amount of the cumulative effect on retained earnings before related income tax effect. |
| 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:CumulativeEffectOnRetainedEarningsBeforeTax1 |
| Label | Role | Language |
| Cumulative Effect on Retained Earnings, before Tax | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 250 10 50 9 | http://fasb.org/us-gaap/role/ref/legacyRef | 250 |
| FASB Accounting Standards Codification 860 50 50 5 | http://www.xbrl.org/2003/role/disclosureRef | 860 |
| Part Of Roll Up: |
| us-gaap:CumulativeEffectOnRetainedEarningsNetOfTax1 |