| Standard label: | Tax Cuts and Jobs Act, Release of Tax Effect, Existence of Option [true false] |
| Name: | us-gaap:TaxCutsAndJobsActOf2017ReleaseOfTaxEffectExistenceOfOption |
| Documentation: | Indicates (true false) whether policy was elected to release tax effect of Tax Cuts and Job Act from accumulated other comprehensive income to retained earnings. |
| Object type: | cm:Concept |
| Data type: | Yes/No (xbrli:booleanItemType) |
| Period type: | As Of (instant) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:TaxCutsAndJobsActOf2017ReleaseOfTaxEffectExistenceOfOption |
| Label | Role | Language |
| Tax Cuts and Jobs Act, Release of Tax Effect, Existence of Option [true false] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 220 10 50 2 (a) | http://www.xbrl.org/2003/role/disclosureRef | 220 |
| FASB Accounting Standards Codification 220 10 50 3 | http://www.xbrl.org/2003/role/disclosureRef | 220 |