| Investors Confidence Index | 
                    436 | 
                    May 2015 - ICI | 
                    
                    
                        
                            
                        
                     | 
                    
                    
    
    
            
    
    
    
    
                
                
                    | Investors Confidence Index | 
                    435 | 
                    July 2015 - ICI | 
                    
                    
                        
                            
                        
                     | 
                    
                    
    
    
            
    
    
    
    
                
                
                    | Investors Confidence Index | 
                    328 | 
                    March 2015 - ICI | 
                    
                    
                        
                            
                        
                     | 
                    
                    
    
    
            
    
    
    
    
                
                
                    | Investors Confidence Index | 
                    297 | 
                    ICI - April 2016 | 
                    
                    
                        
                            
                        
                     | 
                    
                    
    
    
            
    
    
    
    
                
                
                    | Investors Confidence Index | 
                    261 | 
                    ICI - January-March 2016 | 
                    
                    
                        
                            
                        
                     | 
                    
                    
    
    
            
    
    
    
    
                
                
                    | Investors Confidence Index | 
                    224 | 
                    ICI - October, 2015 | 
                    
                    
                        
                            
                        
                     | 
                    
                    
    
    
            
    
    
    
    
                
                
                    | Investors Confidence Index | 
                    216 | 
                    January 2015 - ICI | 
                    
                    
                        
                            
                        
                     | 
                    
                    
    
    
            
    
    
    
    
                
                
                    | Investors Confidence Index | 
                    192 | 
                    June 2015 - ICI | 
                    
                    
                        
                            
                        
                     | 
                    
                    
    
    
            
    
    
    
    
                
                
                    | Investors Confidence Index | 
                    191 | 
                    April 2015 - ICI | 
                    
                    
                        
                            
                        
                     | 
                    
                    
    
    
            
    
    
    
    
                
                
                    | Investors Confidence Index | 
                    190 | 
                    February 2015 - ICI | 
                    
                    
                        
                            
                        
                     |