Earnings Per Share - Basic (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Basic earnings per share
Net income (loss)	$ (3,314)	$ (33,035)
Net Income (Loss) Attributable to Noncontrolling Interest	3,525	0
Net Income (Loss) Attributable to Parent	(6,839)	(33,035)
Less: cumulative preferred stock dividends	6,541	4,832
Subsidiary Preferred Stock Dividends, Income Statement Impact	1,857	0
Accretion of Subsidiary Preferred Stock to redemption Value	13,749	0
Net income (loss) attributable to common shareholders	$ (28,986)	$ (37,867)
Weighted average common stock outstanding	78,492	78,198
Basic earnings (loss) per share, Net	$ (0.37)	$ (0.48)