| 
                                    
                                        04 Feb
                                        2019
 | 4 | 
                                     
                                        Statement of changes in beneficial ownership of securities
                                     | 
                                    3,4,5
                                 |  | 
                        
                            | 
                                    
                                        04 Feb
                                        2019
 | 4 | 
                                     
                                        Statement of changes in beneficial ownership of securities
                                     | 
                                    3,4,5
                                 |  | 
                        
                            | 
                                    
                                        01 Feb
                                        2019
 | 8-K | 
                                     
                                        Report of unscheduled material events or corporate event
                                     | 
                                    Current Reports
                                 |  | 
                        
                            | 
                                    
                                        25 Jan
                                        2019
 | 4 | 
                                     
                                        Statement of changes in beneficial ownership of securities
                                     | 
                                    3,4,5
                                 |  | 
                        
                            | 
                                    
                                        25 Jan
                                        2019
 | 4 | 
                                     
                                        Statement of changes in beneficial ownership of securities
                                     | 
                                    3,4,5
                                 |  | 
                        
                            | 
                                    
                                        22 Jan
                                        2019
 | 4 | 
                                     
                                        Statement of changes in beneficial ownership of securities
                                     | 
                                    3,4,5
                                 |  | 
                        
                            | 
                                    
                                        27 Dec
                                        2018
 | 424B3 | 
                                     
                                        Form of prospectus reflecting facts events constituting substantive change from last form
                                     | 
                                    Registration Statements
                                 |  | 
                        
                            | 
                                    
                                        26 Dec
                                        2018
 | EFFECT | 
                                     
                                        EFFECT
                                     | 
                                    Other
                                 |  | 
                        
                            | 
                                    
                                        17 Dec
                                        2018
 | 8-K | 
                                     
                                        Report of unscheduled material events or corporate event
                                     | 
                                    Current Reports
                                 |  | 
                        
                            | 
                                    
                                        14 Dec
                                        2018
 | S-4 | 
                                     
                                        Registration of securities issued in business combination transactions
                                     | 
                                    Registration Statements
                                 |  |