XML 18 R4.htm IDEA: XBRL DOCUMENT v3.21.2
Consolidated Balance Sheets (Parenthetical) - shares
Sep. 30, 2021
Dec. 31, 2020
Statement of Financial Position [Abstract]    
Common stock, shares, issued (in shares) 154,494,078 134,311,033
Common stock, shares, outstanding (in shares) 154,494,078 134,311,033