| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | FORM 4 | Jan 4, 2024 | Jan 2, 2024 | 000-17007 | 
| 4 | Open Document | Open Filing | FORM 4 | May 22, 2023 | Feb 21, 2023 | 000-17007 | 
| 3 | Open Document | Open Filing | FORM 3 | Oct 21, 2022 | Oct 3, 2022 | 000-17007 | 
| 5 | Open Document | Open Filing | FORM 5 | Feb 14, 2018 | Dec 31, 2017 | 001-34657 | 
| 4 | Open Document | Open Filing | FORM 4 | Oct 23, 2017 | Oct 20, 2017 | 001-34657 | 
| 4 | Open Document | Open Filing | FORM 4 | Jun 2, 2017 | Jun 2, 2017 | 001-34657 | 
| 4 | Open Document | Open Filing | FORM 4 | Mar 23, 2017 | Mar 22, 2017 | 001-34657 | 
| 5 | Open Document | Open Filing | FORM 5 SUBMISSION | Feb 14, 2017 | Dec 31, 2016 | 001-34657 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Sep 30, 2016 | Sep 28, 2016 | 001-34657 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jan 26, 2016 | Jan 25, 2016 | 001-34657 | 
| 4 | Open Document | Open Filing | FORM 4 SUBMISSION | Jun 2, 2015 | Jun 1, 2015 | 001-34657 | 
| 5 | Open Document | Open Filing | MAIN DOCUMENT DESCRIPTION | Feb 14, 2014 | Dec 31, 2013 | 001-34657 |