| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 04 Apr 2022 | 01 Apr 2022 | 001-33326 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 19 May 2021 | 18 May 2021 | 001-33326 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 22 May 2020 | 21 May 2020 | 001-33326 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 12 Mar 2020 | 12 Mar 2020 | 001-33326 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 16 May 2019 | 16 May 2019 | 001-33326 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 20 Apr 2018 | 19 Apr 2018 | 001-33326 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 30 Nov 2017 | 29 Nov 2017 | 001-33326 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Apr 2017 | 20 Apr 2017 | 001-33326 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 18 Nov 2016 | 18 Nov 2016 | 001-33326 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 21 Apr 2016 | 21 Apr 2016 | 001-33326 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | 17 Apr 2015 | 16 Apr 2015 | 001-33326 |
| 4 | Open Document | Open Filing | FORM 4 - | 21 Apr 2014 | 17 Apr 2014 | 001-33326 |
| 4 | Open Document | Open Filing | FORM 4 | 22 Apr 2013 | 18 Apr 2013 | 001-33326 |
| 4 | Open Document | Open Filing | MAIN DOCUMENT DESCRIPTION | 23 Apr 2012 | 19 Apr 2012 | 001-33326 |