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COMMON SHARE CAPITAL - Dividends on common shares (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 12 Months Ended
Feb. 12, 2025
Dec. 31, 2024
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2024
Dec. 31, 2023
COMMON SHARE CAPITAL                      
Dividend declared and paid, per share $ 0.03 $ 0.03 $ 0.03 $ 0.03 $ 0.03 $ 0.03 $ 0.03 $ 0.03 $ 0.03    
Dividend declared and paid, Total amount paid   $ 36.9 $ 36.9 $ 36.8 $ 36.9 $ 36.8 $ 36.8 $ 36.9 $ 36.8 $ 147.5 $ 147.3
Dividend declared and unpaid   $ 0.0       $ 0.0       $ 0.0 $ 0.0