| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | 25 Jan 2022 | 19 Jan 2022 | 001-38286 | |
| 3 | Open Document | Open Filing | 27 May 2021 | 15 May 2021 | 001-38286 | |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Feb 2018 | 26 Feb 2018 | 001-15697 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Feb 2017 | 23 Feb 2017 | 001-15697 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 03 May 2016 | 28 Apr 2016 | 001-15697 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Feb 2016 | 16 Feb 2016 | 001-15697 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 09 Mar 2015 | 05 Mar 2015 | 001-15697 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Mar 2014 | 19 Jun 2012 | 001-15697 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 27 Feb 2014 | 25 Feb 2013 | 001-15697 |