| Standard label: | Common Stock, Dividends, Per Share, Cash Paid | 
| Name: | us-gaap:CommonStockDividendsPerShareCashPaid | 
| Documentation: | Aggregate dividends paid during the period for each share of common stock outstanding. | 
| Object type: | cm:Concept | 
| Data type: | Share (num:perShareItemType) | 
| Period type: | For Period (duration) | 
| Balance type: | (no balance type) | 
| Abstract: | false | 
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:CommonStockDividendsPerShareCashPaid | 
| Label | Role | Language | 
| Common Stock, Dividends, Per Share, Cash Paid | http://www.xbrl.org/2003/role/label | en-US | 
| Reference | Role | Topic | 
| FASB Accounting Standards Codification 505 10 S99 1 (SX 210.3-04) | http://fasb.org/us-gaap/role/ref/legacyRef | 505 |