| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Oct 7, 2021 | Oct 5, 2021 | 001-37670 | 
| 4/A | Open Document | Open Filing | FORM 4/A SUBMISSION | May 19, 2021 | May 14, 2021 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 18, 2021 | May 14, 2021 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 15, 2021 | Apr 13, 2021 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 | Apr 7, 2020 | Apr 6, 2020 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 | Mar 30, 2020 | Mar 28, 2020 | 001-37670 | 
| 4/A | Open Document | Open Filing | FORM 4/A | Feb 26, 2020 | Feb 23, 2020 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 | Feb 26, 2020 | Feb 23, 2020 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 | Aug 15, 2019 | Aug 15, 2019 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 | Jun 6, 2019 | Jun 6, 2019 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 | May 31, 2019 | May 31, 2019 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 | May 29, 2019 | May 29, 2019 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 | May 15, 2019 | May 15, 2019 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 | Apr 11, 2019 | Apr 11, 2019 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 | Apr 8, 2019 | Apr 6, 2019 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 | Apr 4, 2019 | Mar 28, 2019 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 | Feb 26, 2019 | Feb 23, 2019 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 16, 2018 | May 16, 2018 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 24, 2018 | Apr 23, 2018 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 13, 2018 | Apr 11, 2018 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 26, 2018 | Feb 23, 2018 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 29, 2017 | Aug 29, 2017 | 001-37670 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 27, 2017 | Feb 23, 2017 | 001-37670 | 
| 3 | Open Document | Open Filing | 3 | Jul 8, 2016 | Jul 5, 2016 | 001-37670 |