| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 05/15/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/10/18 | 8-K | Form 8-K: Current report | 10 | |
| 05/10/18 | 8-K | Form 8-K: Current report | 26 | |
| 05/07/18 | 8-K | Form 8-K: Current report | 34 | |
| 05/03/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/03/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/03/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/03/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 05/03/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 1 | |
| 04/27/18 | DEFA14A | Form DEFA14A: Additional definitive proxy soliciting materials and Rule 14(a)(12) material | 2 |