4 | Statement of changes in beneficial ownership of securities | Oct 3, 2018 |    |
8-K | Report of unscheduled material events or corporate event | Sep 27, 2018 |     |
8-K | Report of unscheduled material events or corporate event | Sep 19, 2018 |     |
8-K | Report of unscheduled material events or corporate event | Sep 11, 2018 |     |
4 | Statement of changes in beneficial ownership of securities | Aug 22, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Aug 22, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Aug 22, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Aug 22, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Aug 22, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Aug 22, 2018 |    |
8-K | Report of unscheduled material events or corporate event | Aug 20, 2018 |     |
8-K | Report of unscheduled material events or corporate event | Aug 20, 2018 |     |
4 | Statement of changes in beneficial ownership of securities | Jul 27, 2018 |    |
10-Q | Quarterly report which provides a continuing view of a company's financial position | Jul 25, 2018 |       |
4 | Statement of changes in beneficial ownership of securities | Jul 20, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Jul 20, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Jul 20, 2018 |    |
8-K | Report of unscheduled material events or corporate event | Jul 19, 2018 |     |
4 | Statement of changes in beneficial ownership of securities | Jul 5, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Jul 5, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Jul 5, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Jul 5, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Jul 5, 2018 |    |
4 | Statement of changes in beneficial ownership of securities | Jul 5, 2018 |    |
8-K | Report of unscheduled material events or corporate event | Jun 29, 2018 |     |