| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) | 
|---|---|---|---|---|---|---|
| 4 | Open Document | Open Filing | Sep 14, 2022 | Aug 31, 2022 | 001-34761 | |
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 24, 2018 | May 23, 2018 | 001-34761 | 
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 23, 2018 | May 21, 2018 | 001-34761 | 
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | May 21, 2018 | May 17, 2018 | 001-34761 | 
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 20, 2015 | Jun 5, 2015 | 001-34761 | 
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 20, 2015 | Nov 11, 2015 | 001-34761 | 
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 20, 2015 | Oct 1, 2015 | 001-34761 | 
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 20, 2015 | Oct 1, 2015 | 001-34761 | 
| 4/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 20, 2015 | Apr 27, 2015 | 001-34761 | 
| 3/A | Open Document | Open Filing | OWNERSHIP DOCUMENT | Nov 20, 2015 | Apr 27, 2014 | 001-34761 | 
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 5, 2015 | Oct 1, 2015 | 001-34761 | 
| 4 | Open Document | Open Filing | OWNERSHIP DOCUMENT | Oct 5, 2015 | Oct 1, 2015 | 001-34761 | 
| 4 | Open Document | Open Filing | FORM 4 | May 4, 2015 | Apr 27, 2015 | 001-34761 | 
| 3 | Open Document | Open Filing | FORM 3 | May 4, 2015 | Apr 27, 2014 | 001-34761 |