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Equity - Narrative (Details)
 12 Months Ended
Feb. 23, 2021
USD ($)
$ / shares
shares
Dec. 31, 2021
USD ($)
shares
plan
$ / shares
Dec. 31, 2020
USD ($)
shares
$ / shares
Mar. 31, 2021
USD ($)
Dec. 31, 2019
shares
Disclosure of classes of share capital [line items]          
Net proceeds | $     $ 694,608,000    
Shares issued (in shares)   297,700,295 282,078,177    
Compensation expense | $   $ 9,669,000 $ 6,228,000    
Options exercised (in shares)   549,281 1,693,466    
Proceeds from exercise of options | $   $ 2,415,000 $ 4,438,000    
Options granted (in shares)   540,116 1,834,919    
Weighted average fair value, share options granted (usd per share) | $   $ 10.76 $ 5.49    
Options outstanding (in shares)   4,041,567 4,149,639   4,116,149
Shares to be issued (in shares)   19,540,514 17,877,028    
Share-based compensation | $   $ 9,669,000 $ 6,237,000    
Bought Deal Offering          
Disclosure of classes of share capital [line items]          
Number of shares issued (in shares) 14,870,000 14,870,000 20,909,300    
Price per share (usd per share) | $ / shares $ 37.00 $ 37.00 $ 19.25    
Gross proceeds from offering | $ $ 550,190,000 $ 550,190,000 $ 402,504,000    
Net proceeds | $ $ 527,291,000 $ 527,291,000 $ 385,782,000    
ATM Programs          
Disclosure of classes of share capital [line items]          
Number of shares issued (in shares)     24,648,248    
Price per share (usd per share) | $ / shares     $ 12.85    
Gross proceeds from offering | $     $ 316,673,000    
Net proceeds | $     $ 308,826,000    
Prospectus          
Disclosure of classes of share capital [line items]          
Sale of stock authorized amount | $       $ 1,500,000,000  
Common shares          
Disclosure of classes of share capital [line items]          
Options exercised (in shares)   549,281 1,693,466    
Proceeds from exercise of options | $   $ 2,415,000 $ 4,438,000    
Stock Option          
Disclosure of classes of share capital [line items]          
Award term (years)   7 years      
Award vesting percentage   33.33333%      
Compensation expense | $   $ 6,093,000 4,482,000    
Award vesting period (years)   3 years      
DSUs          
Disclosure of classes of share capital [line items]          
Compensation expense | $   $ 672,000 $ 314,000    
Number of common shares each unit is redeemable for (in shares)   1      
Number of shares granted (in shares)   35,953 23,809    
Exercised (in shares)   99,761 15,156    
Share-based compensation | $   $ 1,290,000 $ 64,000    
Common shares issued (in shares)   46,388 7,608    
Outstanding (in shares)   756,223 820,031   811,378
Granted (in shares)   35,953 23,809    
RSUs          
Disclosure of classes of share capital [line items]          
Compensation expense | $   $ 2,904,000 $ 1,432,000    
Options exercised (in shares)   156,449 305,229    
Number of common shares each unit is redeemable for (in shares)   1      
Exercised (in shares)   325,863 593,025    
Share-based compensation | $   $ 4,357,000 $ 3,023,000    
Outstanding (in shares)   966,220 1,129,946   1,305,265
Number of plans | plan   2      
Granted (in shares)   195,838 334,758