| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Jul 19, 2022 | Jun 24, 2022 | 001-37648 | |
| 4 | Open Document | Open Filing | Mar 16, 2022 | Mar 16, 2022 | 001-37648 | |
| 4 | Open Document | Open Filing | Jun 28, 2021 | Jun 24, 2021 | 001-37648 | |
| 4 | Open Document | Open Filing | Dec 15, 2020 | Dec 11, 2020 | 001-37648 | |
| 4 | Open Document | Open Filing | Jun 19, 2020 | Jun 17, 2020 | 001-37648 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 19, 2019 | Jul 17, 2019 | 001-37648 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 4, 2018 | Aug 30, 2018 | 001-37648 | 
| 4 | Open Document | Open Filing | Jul 31, 2018 | Jul 26, 2018 | 001-37648 | |
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 3, 2018 | Jul 1, 2018 | 001-12830 | 
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Apr 27, 2018 | Feb 21, 2018 | 001-12830 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 19, 2017 | Jun 15, 2017 | 001-37648 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 18, 2016 | Feb 16, 2016 | 001-37648 | 
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Dec 31, 2015 | Dec 30, 2015 | 001-37648 |