| S-8 | Securities offered to employees pursuant to employee benefit plans | Apr 18, 2019 |  Open Securities offered to employees pursuant to employee benefit plans in HTML. Open Securities offered to employees pursuant to employee benefit plans in DOC file. Open Securities offered to employees pursuant to employee benefit plans in PDF file. Open Securities offered to employees pursuant to employee benefit plans in XLS file. |
| 424B4 | Form of prospectus disclosing information facts events covered in both forms 424B1 424B3 | Dec 12, 2018 | Open Form of prospectus disclosing information facts events covered in both forms 424B1 424B3 in HTML.Open Form of prospectus disclosing information facts events covered in both forms 424B1 424B3 in DOC file.Open Form of prospectus disclosing information facts events covered in both forms 424B1 424B3 in PDF file.Open Form of prospectus disclosing information facts events covered in both forms 424B1 424B3 in XLS file. |
| F-1/A | This filing is a pre-effective amendment to an F-1 filing | Dec 10, 2018 | Open This filing is a pre-effective amendment to an F-1 filing in HTML.Open This filing is a pre-effective amendment to an F-1 filing in DOC file.Open This filing is a pre-effective amendment to an F-1 filing in PDF file.Open This filing is a pre-effective amendment to an F-1 filing in XLS file. |
