Earnings (Loss) Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Basic Earnings (Loss) per Common Share:
Net income (loss) attributable to Company	$ 117,813	$ 22,735	$ (470,570)	$ 66,874
Less: Preferred stock dividends	(10,296)	(6,257)	(20,593)	(12,182)
NET INCOME (LOSS) ATTRIBUTABLE TO COMPANY'S COMMON STOCKHOLDERS	$ 107,517	$ 16,478	$ (491,163)	$ 54,692
Weighted average common shares outstanding-basic (in shares)	377,465	200,691	364,189	187,628
Basic Earnings (Loss) per Common Share (in dollars per share)	$ 0.28	$ 0.08	$ (1.35)	$ 0.29
Diluted Earnings (Loss) per Common Share:
Net income (loss) attributable to Company	$ 117,813	$ 22,735	$ (470,570)	$ 66,874
Less: Preferred stock dividends	(10,296)	(6,257)	(20,593)	(12,182)
Add back: Interest expense on convertible notes for the period, net of tax	2,665	0	0	5,307
Net income (loss) attributable to Company's common stockholders	$ 110,182	$ 16,478	$ (491,163)	$ 59,999
Weighted average common shares outstanding-basic (in shares)	377,465	200,691	364,189	187,628
Net effect of assumed convertible notes conversion to common shares (in shares)	19,695	0	0	19,695
Diluted weighted average common shares outstanding (in shares)	399,982	202,398	364,189	209,011
Diluted Earnings (Loss) per Common Share (in dollars per share)	$ 0.28	$ 0.08	$ (1.35)	$ 0.29
RSUs
Diluted Earnings (Loss) per Common Share:
Net effect of assumed RSUs and PSUs vested (in shares)	2,180	0	0	0
PSUs
Diluted Earnings (Loss) per Common Share:
Net effect of assumed RSUs and PSUs vested (in shares)	642	1,707	0	1,688