| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jun 2021 | 10 Jun 2021 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Mar 2021 | 10 Mar 2021 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 02 Mar 2021 | 01 Mar 2021 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Feb 2021 | 19 Feb 2021 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Jun 2020 | 10 Jun 2020 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Mar 2020 | 10 Mar 2020 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 Mar 2020 | 10 Mar 2020 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 28 Feb 2020 | 26 Feb 2020 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Feb 2020 | 24 Feb 2020 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Feb 2020 | 24 Feb 2020 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jun 2019 | 10 Jun 2019 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Mar 2019 | 10 Mar 2019 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Feb 2019 | 25 Feb 2019 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Feb 2019 | 22 Feb 2019 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Feb 2019 | 21 Feb 2019 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jun 2018 | 10 Jun 2018 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 Mar 2018 | 12 Mar 2018 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Mar 2018 | 27 Feb 2018 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Feb 2018 | 26 Feb 2018 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Feb 2018 | 22 Feb 2018 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Nov 2017 | 21 Nov 2017 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Nov 2017 | 20 Nov 2017 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Aug 2017 | 07 Aug 2017 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jul 2017 | 24 Jul 2017 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Mar 2017 | 06 Mar 2017 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Feb 2017 | 22 Feb 2017 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Feb 2017 | 24 Feb 2017 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Feb 2017 | 23 Feb 2017 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Nov 2016 | 21 Nov 2016 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Nov 2016 | 18 Nov 2016 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 Aug 2016 | 15 Aug 2016 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 25 Jul 2016 | 22 Jul 2016 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 Apr 2016 | 04 Apr 2016 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 01 Mar 2016 | 24 Feb 2016 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Feb 2016 | 19 Feb 2016 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Feb 2016 | 18 Feb 2016 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Nov 2015 | 18 Nov 2015 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Aug 2015 | 14 Aug 2015 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Jul 2015 | 22 Jul 2015 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Feb 2015 | 18 Feb 2015 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 24 Jul 2014 | 22 Jul 2014 | 000-27512 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Feb 2014 | 19 Feb 2014 | 000-27512 |