| Date | Form | Description | XBRL | Pages |
|---|---|---|---|---|
| 03/06/18 | 8-K | Form 8-K: Current report | 6 | |
| 03/02/18 | SC TO-T/A | Form SC TO-T/A: Tender offer statement by Third Party | 15 | |
| 03/01/18 | 8-K | Form 8-K: Current report | 3 | |
| 02/22/18 | SC TO-I/A | Form SC TO-I/A: Tender offer statement by Issuer | 21 | |
| 02/22/18 | SC 14D9/A | Form SC 14D9/A: Solicitation, recommendation statements | 8 | |
| 02/12/18 | SC TO-T/A | Form SC TO-T/A: Tender offer statement by Third Party | 17 | |
| 02/09/18 | 8-K/A | Form 8-K/A: Current report | 5 | |
| 02/06/18 | 8-K | Form 8-K: Current report | 3 | |
| 02/06/18 | SC TO-I | Form SC TO-I: Tender offer statement by Issuer | 46 | |
| 02/06/18 | SC 14D9 | Form SC 14D9: Solicitation, recommendation statements | 7 |