| Standard label: | Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense |
| Name: | us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense |
| Documentation: | Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. |
| Object type: | cm:Concept |
| Data type: | Monetary (xbrli:monetaryItemType) |
| Period type: | For Period (duration) |
| Balance type: | Debit |
| Abstract: | false |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense |
| Label | Role | Language |
| Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense | http://www.xbrl.org/2003/role/label | en-US |
| Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense, Total | http://www.xbrl.org/2003/role/totalLabel | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 740 10 50 15 (c) | http://fasb.org/us-gaap/role/ref/legacyRef | 740 |
| Part Of Roll Up: |
| us-gaap:IncomeTaxExpenseBenefit |