| Standard label: | New Accounting Pronouncement or Change in Accounting Principle, Description |
| Name: | us-gaap:NewAccountingPronouncementOrChangeInAccountingPrincipleDescription |
| Documentation: | Disclosure related to a new accounting pronouncement or a change in accounting principle, including the nature and reason for the change and the effect of the change on prior periods and the current period. |
| 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:NewAccountingPronouncementOrChangeInAccountingPrincipleDescription |
| Label | Role | Language |
| New Accounting Pronouncement or Change in Accounting Principle, Description | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 250 10 50 1 (a) | http://www.xbrl.org/2003/role/disclosureRef | 250 |
| FASB Accounting Standards Codification 250 10 50 3 | http://fasb.org/us-gaap/role/ref/legacyRef | 250 |
| FASB Accounting Standards Codification 250 10 S99 5 (SAB Topic 11.M) | http://fasb.org/us-gaap/role/ref/legacyRef | 250 |
| FASB Accounting Standards Codification 250 10 S99 6 | http://www.xbrl.org/2003/role/disclosureRef | 250 |
| FASB Accounting Standards Codification 270 10 S99 1 (SX 210.10-01(b)(6)) | http://fasb.org/us-gaap/role/ref/legacyRef | 270 |
| FASB Accounting Standards Codification 270 10 45 12 | http://fasb.org/us-gaap/role/ref/legacyRef | 270 |
| FASB Accounting Standards Codification 270 10 45 13 | http://fasb.org/us-gaap/role/ref/legacyRef | 270 |