XML 124 R102.htm IDEA: XBRL DOCUMENT v3.24.0.1
Shareholders' capital - Additional Information (Detail)
$ / shares in Units, $ in Thousands
 2 Months Ended 12 Months Ended 61 Months Ended
Mar. 08, 2024
USD ($)
Mar. 03, 2022
Mar. 02, 2022
Dec. 31, 2023
USD ($)
vote
right
shares
Dec. 31, 2023
USD ($)
$ / shares
shares
Dec. 31, 2022
USD ($)
shares
Dec. 31, 2022
$ / shares
Mar. 08, 2024
USD ($)
$ / shares
shares
Dec. 31, 2023
$ / shares
Aug. 15, 2022
USD ($)
Stockholders Equity Note [Line Items]                    
Number of entitled votes per common share | vote       1            
Number of voting rights per share | right       1            
Discount rate on share purchases (percent)       50.00%            
Dividend declared per preferred share (USD per share) | $ / shares         $ 1.6440          
Preferred dividend rate reset period       5 years            
Total share-based compensation | $       $ 11,293   $ 10,920        
Unrecognized compensation costs, non-vested awards | $       $ 23,883 $ 23,883          
Unrecognized compensation costs, non-vested options, period of recognition       1 year 9 months 18 days            
Common shares issued from treasury (in shares)       50,677            
Share based awards settled for cash value as payment for tax withholding (in shares)       51,783            
Company Match, First $5,000 Contributed by Employee                    
Stockholders Equity Note [Line Items]                    
Employer matching contribution (percent)       20.00%            
Employee contribution eligible for 20% Company match | $       $ 5            
Maximum employee contribution eligible for partial Company match | $       $ 10            
Company Match, Employee Contributions $5,001 to $10,000                    
Stockholders Equity Note [Line Items]                    
Employer matching contribution (percent)       10.00%            
Share options                    
Stockholders Equity Note [Line Items]                    
Number of shares issued pursuant to public offering (in shares)       752,582   414,338        
Total share-based compensation | $       $ 1,325   $ 980        
Percentage of shares reserved under the plan (must not exceed)       8.00%            
ESPP                    
Stockholders Equity Note [Line Items]                    
Vesting period of matching contribution shares       1 year            
Maximum aggregate number of shares reserved for future issuance (in shares)       4,000,000 4,000,000          
Deferred Share Units                    
Stockholders Equity Note [Line Items]                    
Maximum aggregate number of shares reserved for future issuance (in shares)       1,000,000 1,000,000          
Exercise of share-based awards settled (in shares)       181,328   120,513        
Shares issued during period (in shares)       724,583   645,714        
Performance and restricted share units                    
Stockholders Equity Note [Line Items]                    
Maximum aggregate number of shares reserved for future issuance (in shares)       7,000,000 7,000,000          
Award vesting period       3 years            
Series A Shares                    
Stockholders Equity Note [Line Items]                    
Dividend declared per preferred share (USD per share) | $ / shares         $ 1.2905   $ 1.2905      
Preferred dividend rate reset period       5 years            
Basis spread on variable rate       2.94%            
Shares issued, price per share (USD and CAD per share) | $ / shares                 $ 25  
Series D Shares                    
Stockholders Equity Note [Line Items]                    
Dividend declared per preferred share (USD per share) | $ / shares         $ 1.2728   $ 1.2728      
Preferred dividend rate reset period       5 years            
Basis spread on variable rate       3.28%            
Shares issued, price per share (USD and CAD per share) | $ / shares                 $ 25  
Common shares                    
Stockholders Equity Note [Line Items]                    
Discount rate on share purchases under dividend reinvestment plan (percent)   3.00% 5.00%              
Common shares | Public Stock Offering                    
Stockholders Equity Note [Line Items]                    
Exercise of share-based awards settled (in shares)       102,460   5,176        
ATM Equity Program                    
Stockholders Equity Note [Line Items]                    
Treasury stock, amount reserved for issuance under the plan | $                   $ 500,000
ATM Equity Program | Subsequent Event                    
Stockholders Equity Note [Line Items]                    
Number of shares issued pursuant to public offering (in shares)               36,814,536    
Sale of stock, average price per share (in USD) | $ / shares               $ 15.00    
Sale of stock, other related costs | $ $ 4,843             $ 551,086    
Proceeds from sale of stock, net of commissions | $               $ 544,295    
Minimum                    
Stockholders Equity Note [Line Items]                    
Percentage of outstanding stock to be purchased to acquire discount (or more)       20.00%            
Minimum | Performance and restricted share units                    
Stockholders Equity Note [Line Items]                    
Percentage of shares issued on number of PSU grants (percent)       2.50%            
Maximum | Performance and restricted share units                    
Stockholders Equity Note [Line Items]                    
Percentage of shares issued on number of PSU grants (percent)       237.00%