| 20-F/A | Amendment to a previously filed 20-F | May 13, 2022 |  Open Amendment to a previously filed 20-F in HTML. Open Amendment to a previously filed 20-F in DOC file. Open Amendment to a previously filed 20-F in PDF file. Open Amendment to a previously filed 20-F in XLS file. Open Amendment to a previously filed 20-F in XBLR Viewer. Open Amendment to a previously filed 20-F in XBLR file. |
| 20-F | Registration of securities of foreign private issuers pursuant to section 12(b) or (g) | May 10, 2022 | Open Registration of securities of foreign private issuers pursuant to section 12(b) or (g) in HTML.Open Registration of securities of foreign private issuers pursuant to section 12(b) or (g) in DOC file.Open Registration of securities of foreign private issuers pursuant to section 12(b) or (g) in PDF file.Open Registration of securities of foreign private issuers pursuant to section 12(b) or (g) in XLS file.Open Registration of securities of foreign private issuers pursuant to section 12(b) or (g) in XBLR Viewer.Open Registration of securities of foreign private issuers pursuant to section 12(b) or (g) in XBLR file. |
| NT 20-F | NT 20-F | May 2, 2022 | Open NT 20-F in HTML.Open NT 20-F in DOC file.Open NT 20-F in PDF file.Open NT 20-F in XLS file. |