| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 07 Dec 2021 | 03 Dec 2021 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Feb 2021 | 19 Feb 2021 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Feb 2021 | 09 Feb 2021 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 Mar 2020 | 28 Feb 2020 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Jan 2020 | 17 Jan 2020 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Aug 2019 | 06 Aug 2019 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jan 2019 | 18 Jan 2019 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Jan 2018 | 19 Jan 2018 | 001-32590 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Jan 2017 | 20 Jan 2017 | 001-32590 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 06 May 2016 | 04 May 2016 | 001-32590 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 26 Jan 2016 | 22 Jan 2016 | 001-32590 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 21 Jan 2015 | 16 Jan 2015 | 001-32590 |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | 22 Jan 2014 | 17 Jan 2014 | 001-32590 |