| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 23, 2022 | May 19, 2022 | 001-37637 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 4, 2022 | Apr 1, 2022 | 001-37637 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 6, 2021 | Jul 1, 2021 | 001-37637 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 5, 2021 | Apr 1, 2021 | 001-37637 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 13, 2020 | Jul 9, 2020 | 001-37637 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 2, 2020 | Jun 1, 2020 | 001-37637 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 3, 2020 | Apr 1, 2020 | 001-37637 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 1, 2020 | Apr 1, 2020 | 001-37637 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 3, 2019 | Apr 1, 2019 | 001-37637 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 13, 2019 | Feb 12, 2019 | 001-37637 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 5, 2018 | Jun 1, 2018 | 001-37637 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 4, 2018 | Apr 2, 2018 | 001-37637 | 
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Apr 2, 2018 | Apr 1, 2018 | 001-37637 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 10, 2016 | Feb 9, 2016 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 17, 2015 | Dec 15, 2015 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 8, 2015 | Dec 6, 2015 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 3, 2015 | Dec 2, 2015 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 9, 2015 | Sep 3, 2015 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 1, 2015 | Aug 28, 2015 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 8, 2015 | Jun 6, 2015 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 10, 2015 | Mar 6, 2015 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 11, 2014 | Dec 10, 2014 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 9, 2014 | Dec 6, 2014 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 4, 2014 | Dec 2, 2014 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 9, 2014 | Sep 6, 2014 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 5, 2014 | Sep 3, 2014 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jul 2, 2014 | Jul 1, 2014 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 10, 2014 | Jun 6, 2014 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 5, 2014 | Jun 3, 2014 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 10, 2014 | Mar 6, 2014 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 5, 2014 | Mar 3, 2014 | 001-33707 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 6, 2014 | Feb 5, 2014 | 001-33707 |