| 20-F | Registration of securities of foreign private issuers pursuant to section 12(b) or (g) | May 17, 2021 |  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. |