- Definition
                Tabular disclosure of the changes in outstanding nonvested restricted stock units.
               
+ References
                Reference 1: http://www.xbrl.org/2003/role/presentationRef
 -Publisher FASB
 -Name Accounting Standards Codification
 -Topic 718
 -SubTopic 10
 -Section 50
 -Paragraph 2
 -Subparagraph (c)(2)
 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901
               
+ Details
                
                  
                    |  Name: | 
                    us-gaap_ScheduleOfNonvestedRestrictedStockUnitsActivityTableTextBlock | 
                  
                  
                    |  Namespace Prefix: | 
                    us-gaap_ | 
                  
                  
                    |  Data Type: | 
                    nonnum:textBlockItemType | 
                  
                  
                    |  Balance Type: | 
                    na | 
                  
                  
                    |  Period Type: | 
                    duration |