| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Mar 2025 | 07 Mar 2025 | 000-20322 |
| 4 | Open Document | Open Filing | 04 Mar 2020 | 02 Mar 2020 | 001-13881 | |
| 4 | Open Document | Open Filing | 20 Feb 2020 | 18 Feb 2020 | 001-13881 | |
| 4 | Open Document | Open Filing | 19 Nov 2019 | 15 Nov 2019 | 001-13881 | |
| 4 | Open Document | Open Filing | 07 Mar 2019 | 05 Mar 2019 | 001-13881 | |
| 4 | Open Document | Open Filing | 21 Feb 2019 | 15 Feb 2019 | 001-13881 | |
| 4/A | Open Document | Open Filing | 06 Dec 2018 | 15 Nov 2018 | 001-13881 | |
| 4 | Open Document | Open Filing | 16 Nov 2018 | 15 Nov 2018 | 001-13881 | |
| 4 | Open Document | Open Filing | 22 Feb 2018 | 20 Feb 2018 | 001-13881 | |
| 4 | Open Document | Open Filing | 20 Feb 2018 | 15 Feb 2018 | 001-13881 | |
| 4 | Open Document | Open Filing | 16 Nov 2017 | 15 Nov 2017 | 001-13881 | |
| 4 | Open Document | Open Filing | 19 Jun 2017 | 15 Jun 2017 | 001-13881 | |
| 4 | Open Document | Open Filing | 23 Feb 2017 | 21 Feb 2017 | 001-13881 | |
| 4 | Open Document | Open Filing | 17 Feb 2017 | 15 Feb 2017 | 001-13881 | |
| 4 | Open Document | Open Filing | 30 Nov 2016 | 11 Nov 2016 | 001-13881 | |
| 4 | Open Document | Open Filing | 16 Jun 2016 | 15 Jun 2016 | 001-13881 | |
| 4 | Open Document | Open Filing | 25 Feb 2016 | 22 Feb 2016 | 001-13881 | |
| 4 | Open Document | Open Filing | 18 Feb 2016 | 16 Feb 2016 | 001-13881 | |
| 4 | Open Document | Open Filing | 16 Jun 2015 | 15 Jun 2015 | 001-13881 | |
| 4 | Open Document | Open Filing | 25 Feb 2015 | 23 Feb 2015 | 001-13881 | |
| 3 | Open Document | Open Filing | 11 Jun 2014 | 02 Jun 2014 | 001-13881 |