| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 23, 2022 | Feb 23, 2022 | 001-33816 | 
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 4, 2021 | Oct 1, 2021 | 001-08182 | 
| 4 | Open Document | Open Filing | FORM 4 | Jul 19, 2021 | Jul 16, 2021 | 001-33816 | 
| 4 | Open Document | Open Filing | FORM 4 - | Apr 29, 2021 | Apr 27, 2021 | 001-08182 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 9, 2021 | Jan 14, 2021 | 001-33816 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 18, 2020 | Dec 16, 2020 | 001-33816 | 
| 3 | Open Document | Open Filing | FORM 3 - | Jun 8, 2020 | May 29, 2020 | 001-08182 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Apr 9, 2019 | Mar 18, 2019 | 001-33816 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 3, 2019 | Dec 31, 2018 | 001-33816 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 31, 2018 | May 29, 2018 | 001-33816 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 20, 2018 | Mar 16, 2018 | 001-33816 | 
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Aug 15, 2017 | Aug 8, 2017 | 001-33816 |