| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 04/25/18 | 8-K | Form 8-K: Current report filing | 4 | |
| 04/25/18 | 8-K | Form 8-K: Current report filing | 8 | |
| 04/18/18 | 8-K | Form 8-K: Current report filing | 4 | |
| 04/02/18 | 8-K | Form 8-K: Current report filing | 4 | |
| 03/21/18 | DEF 14A | Form DEF 14A: Definitive proxy statements | 60 | |
| 03/20/18 | 8-K | Form 8-K: Current report filing | 4 | |
| 03/15/18 | 8-K | Form 8-K: Current report filing | 4 | |
| 03/02/18 | 8-K | Form 8-K: Current report filing | 5 | |
| 02/28/18 | 8-K | Form 8-K: Current report filing | 4 | |
| 02/28/18 | 4 | Form 4: Statement of changes in beneficial ownership of securities | 2 |