EARNINGS PER COMMON SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Earnings (loss) per common share
Net income (loss)	$ 188,098	$ (9,384)	$ 518,870	$ 174,592
Less: Preferred share dividends	7,563	7,563	22,688	22,688
Net income (loss) available (attributable) to common shareholders	$ 180,535	$ (16,947)	$ 496,182	$ 151,904
Weighted average common shares outstanding (in shares)	85,223	84,660	85,099	84,930
Earnings (loss) per common share (in usd per share)	$ 2.12	$ (0.20)	$ 5.83	$ 1.79
Earnings (loss) per diluted common share
Net income (loss) available (attributable) to common shareholders	$ 180,535	$ (16,947)	$ 496,182	$ 151,904
Weighted average common shares outstanding (in shares)	85,223	84,660	85,099	84,930
Share-based compensation plans (in shares)	885	0	828	744
Weighted average diluted common shares outstanding (in shares)	86,108	84,660	85,927	85,674
Earnings (loss) per common share (in usd per share)	$ 2.10	$ (0.20)	$ 5.77	$ 1.77
Weighted average anti-dilutive shares excluded from the dilutive computation (in shares)	58	160	533	432