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Equity - Exchangeable Shares (Details) - shares
12 Months Ended
Dec. 31, 2019
Dec. 31, 2017
Class of Stock [Line Items]    
Number of shares of common stock received for each exchangeable share (in shares) 1  
Exchangeable Shares For Common Stock    
Class of Stock [Line Items]    
Exchangeable shares exchanged for common stock (in shares) 400,000 6,000,000.0