| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 04/26/18 | 8-K | Form 8-K: Current report filing | 6 | |
| 04/16/18 | PRE 14A | Form PRE 14A: Preliminary proxy statement not related to a contested matter or merger/acquisition | 45 | |
| 04/13/18 | 8-K | Form 8-K: Current report filing | 3 | |
| 03/20/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 03/20/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 03/19/18 | 8-K | Form 8-K: Current report filing | 4 | |
| 03/12/18 | 8-K | Form 8-K: Current report filing | 53 | |
| 03/07/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 03/05/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 | |
| 03/05/18 | 8-K | Form 8-K: Current report filing | 4 |