| Date | Form | Description | XBRL | Pages | |
|---|---|---|---|---|---|
| 02/26/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 
                                            
                             | 
                                    1 | |
| 02/26/18 | 3 | Form 3: Initial statement of beneficial ownership of securities | 
                                            
                             | 
                                    1 | |
| 02/26/18 | 3 | Form 3: Initial statement of beneficial ownership of securities | 
                                            
                             | 
                                    1 | |
| 02/26/18 | 3 | Form 3: Initial statement of beneficial ownership of securities | 
                                            
                             | 
                                    1 | |
| 02/16/18 | 3 | Form 3: Initial statement of beneficial ownership of securities | 
                                            
                             | 
                                    1 | |
| 02/09/18 | 8-K | Form 8-K: Current report filing | 
                                            
                             | 
                                    2 | |
| 02/09/18 | SC 13G/A | Form SC 13G/A: Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions | 
                                            
                             | 
                                    5 | |
| 02/02/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 
                                            
                             | 
                                    1 | |
| 01/29/18 | SC 13G/A | Form SC 13G/A: Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions | 
                                            
                             | 
                                    5 | |
| 01/19/18 | 8-K/A | Form 8-K/A: Current report filing | 
                                            
                             | 
                                    2 | 
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