| Standard label: | Debt Instrument, Convertible, Remaining Discount Amortization Period |
| Name: | us-gaap:DebtInstrumentConvertibleRemainingDiscountAmortizationPeriod1 |
| Documentation: | Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. |
| Object type: | cm:Concept |
| Data type: | xbrli:durationItemType |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:DebtInstrumentConvertibleRemainingDiscountAmortizationPeriod1 |
| Label | Role | Language |
| Debt Instrument, Convertible, Remaining Discount Amortization Period | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 470 20 50 5 (a) | http://fasb.org/us-gaap/role/ref/legacyRef | 470 |