| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Jun 2021 | 15 Jun 2021 | 001-34361 |
| 4/A | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Jun 2020 | 15 Jun 2020 | 001-34361 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 13 May 2020 | 13 May 2020 | 001-34361 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Mar 2020 | 20 Mar 2020 | 001-34361 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 06 Mar 2020 | 06 Mar 2020 | 001-34361 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Nov 2019 | 06 Nov 2019 | 001-34361 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 Aug 2019 | 06 Aug 2019 | 001-34361 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 May 2019 | 07 May 2019 | 001-34361 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 Mar 2019 | 12 Mar 2019 | 001-34361 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Nov 2018 | 06 Nov 2018 | 001-34361 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Aug 2018 | 03 Aug 2018 | 001-34361 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 May 2018 | 08 May 2018 | 001-34361 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 11 May 2018 | 08 May 2018 | 001-34361 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Mar 2018 | 29 Mar 2018 | 001-34361 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 23 Aug 2017 | 23 Aug 2017 | 001-34361 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 10 Aug 2017 | 04 Aug 2017 | 001-34361 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 05 May 2016 | 03 May 2016 | 001-34361 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 07 May 2015 | 05 May 2015 | 001-34361 |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | 08 May 2014 | 06 May 2014 | 001-34361 |