| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 08 Jul 2021 | 06 Jul 2021 | 001-34600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Jan 2021 | 05 Jan 2021 | 001-34600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 15 May 2020 | 01 Mar 2020 | 001-34600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 Apr 2019 | 01 May 2018 | 001-34600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Apr 2019 | 01 May 2018 | 001-34600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 26 Jul 2013 | 23 Jul 2013 | 001-34600 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 14 Jun 2012 | 01 May 2012 | 001-34600 |
| 3 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Jan 2012 | 16 Dec 2011 | 001-34600 |