| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 23, 2025 | Apr 22, 2025 | 001-31220 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 14, 2021 | Dec 31, 2020 | 001-31220 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Sep 23, 2020 | Sep 23, 2020 | 001-31220 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 30, 2020 | Dec 31, 2019 | 001-31220 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 1, 2019 | Dec 31, 2018 | 001-31220 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 28, 2018 | Aug 28, 2018 | 001-31220 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Jan 5, 2018 | Dec 31, 2017 | 001-31220 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 2, 2016 | Oct 3, 2016 | 001-31220 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Aug 15, 2016 | Jul 5, 2016 | 001-31220 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Apr 7, 2016 | Apr 1, 2016 | 001-31220 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 24, 2016 | Mar 24, 2016 | 001-31220 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Mar 9, 2016 | Jan 4, 2016 | 001-31220 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 3, 2015 | Jan 2, 2015 | 001-31220 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Nov 17, 2014 | Oct 1, 2014 | 001-31220 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Jul 11, 2014 | Jul 1, 2014 | 001-31220 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | May 23, 2014 | Apr 2, 2014 | 001-31220 |
| 4 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 14, 2014 | Jan 3, 2014 | 001-31220 |
| 5 | Open Document | Open Filing | PRIMARY DOCUMENT | Feb 14, 2014 | Dec 31, 2013 | 001-31220 |