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Condensed Consolidated Statements of Changes in Shareholders Equity - USD ($)
$ in Millions
Share capital
Contributed surplus
Accumulated other comprehensive loss
Retained earnings (deficit)
Total
Balance at beginning of period at Dec. 31, 2020 $ 5,580.1 $ 14.0 $ (115.9) $ (34.4) $ 5,443.8
Net income       346.8 346.8
Other comprehensive (loss) income     92.4   92.4
Total comprehensive income         439.2
Exercise of stock options 0.4 (0.1)     0.3
Share-based payments   3.2     3.2
Transfer of gain on disposal of equity investments at FVTOCI     (7.0) 7.0  
Dividend reinvestment plan 19.5       19.5
Dividends declared       (106.5) (106.5)
Balance at end of period at Jun. 30, 2021 5,600.0 17.1 (30.5) 212.9 5,799.5
Balance at beginning of period at Dec. 31, 2020 5,580.1 14.0 (115.9) (34.4) 5,443.8
Exercise of stock options 0.5        
Dividend reinvestment plan 41.8        
Balance at end of period at Dec. 31, 2021 5,628.5 16.1 (104.3) 484.9 6,025.2
Net income       378.5 378.5
Other comprehensive (loss) income     (84.1)   (84.1)
Total comprehensive income         294.4
Exercise of stock options 6.7 (1.5)     5.2
Share-based payments   3.3     3.3
Transfer of gain on disposal of equity investments at FVTOCI     (0.6) 0.6  
Dividend reinvestment plan 21.8       21.8
Dividends declared       (123.2) (123.2)
Balance at end of period at Jun. 30, 2022 $ 5,657.0 $ 17.9 $ (189.0) $ 740.8 $ 6,226.7