Earnings Per Share - Schedule of Earnings Per Share (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Earnings Per Share [Abstract]
Net income (loss)	$ 3,626	$ (8,832)	$ 370,347	$ 86,702
Net income attributable to noncontrolling interests	(2,845)	(2,028)	(8,168)	(11,632)
Preferred dividends	(8,124)	(8,124)	(24,372)	(24,372)
Net income (loss) allocable to common shareholders	(7,343)	(18,984)	337,807	50,698
Add: Effect of Series J convertible perpetual preferred stock	0	0	6,750	6,750
Net income (loss) allocable to common shareholders for diluted earnings per common share	$ (7,343)	$ (18,984)	$ 344,557	$ 57,448