| Standard label: | Long-term Debt, Gross | 
| Name: | us-gaap:DebtInstrumentCarryingAmount | 
| Documentation: | Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. | 
| Object type: | cm:Concept | 
| Data type: | Monetary (xbrli:monetaryItemType) | 
| Period type: | As Of (instant) | 
| Balance type: | Credit | 
| Abstract: | false | 
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:DebtInstrumentCarryingAmount | 
| Label | Role | Language | 
| Long-term Debt, Gross | http://www.xbrl.org/2003/role/label | en-US | 
| Reference | Role | Topic | 
| FASB Accounting Standards Codification 210 10 S99 1 (SX 210.5-02(22)) | http://fasb.org/us-gaap/role/ref/legacyRef | 210 | 
| FASB Accounting Standards Codification 470 20 50 4 (b)(1) | http://www.xbrl.org/2003/role/disclosureRef | 470 | 
| FASB Accounting Standards Codification 942 210 S99 1 (SX 210.9-03(16)) | http://fasb.org/us-gaap/role/ref/legacyRef | 942 | 
| FASB Accounting Standards Codification 944 210 S99 1 (SX 210.7-03(16)) | http://fasb.org/us-gaap/role/ref/legacyRef | 944 |