Earnings Per Share - Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Diluted earnings per share
Net income (loss)	$ (5,466)	$ 8,461	$ (21,678)	$ (27,300)
Net Income (Loss) Attributable to Noncontrolling Interest	7,042	0	23,256	0
Net Income (Loss) Attributable to Parent	(12,508)	8,461	(44,934)	(27,300)
Less: cumulative preferred stock dividends	6,773	6,317	19,971	17,360
Subsidiary Preferred Stock Dividends, Income Statement Impact	2,604	0	6,288	0
Accretion of Subsidiary Preferred Stock to redemption Value	255	0	14,241	0
Net income (loss) attributable to common shareholders	$ (22,140)	$ 2,144	$ (85,434)	$ (44,660)
Weighted average common stock outstanding	78,677	78,353	78,613	78,290
Effect of dilutive securities	0	624	0	0
Denominator, Net, Diluted	78,677	78,977	78,613	78,290
Diluted earnings (loss) per share, Net	$ (0.28)	$ 0.03	$ (1.09)	$ (0.57)