| 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 | FORM 4 SUBMISSION | Apr 13, 2021 | Apr 9, 2021 | 001-33816 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 12, 2021 | Mar 10, 2021 | 001-33816 | 
| 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 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 22, 2020 | Jan 21, 2020 | 001-33816 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Mar 7, 2019 | Dec 31, 2018 | 001-33816 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Feb 27, 2018 | Feb 23, 2018 | 001-33816 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Aug 9, 2017 | Aug 7, 2017 | 001-33816 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 9, 2016 | May 6, 2016 | 001-33816 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 16, 2015 | Jan 14, 2015 | 001-33816 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Dec 3, 2014 | Dec 2, 2014 | 001-33816 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Nov 28, 2014 | Nov 26, 2014 | 001-33816 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 9, 2014 | Sep 5, 2014 | 001-33816 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 5, 2014 | Sep 4, 2014 | 001-33816 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | May 8, 2014 | May 6, 2014 | 001-33816 | 
| 3 | Open Document | Open Filing | FORM 3 SUBMISSION | Apr 15, 2014 | Apr 14, 2014 | 001-33816 |