| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 14, 2021 | Jun 10, 2021 | 001-33647 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 11, 2020 | Jun 10, 2020 | 001-33647 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 14, 2019 | Aug 8, 2019 | 001-33647 |
| 3/A | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 23, 2015 | Oct 29, 2014 | 001-33647 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 21, 2015 | Oct 29, 2014 | 001-33647 |