Income (Loss) Per Share - Basic and Diluted Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net income (loss) attributable to common stockholders – basic and diluted:
Net income (loss) attributable to the Company	$ (13,217)	$ (6,156)	$ (198,853)	$ (5,334)
Less: Dividends on preferred stock, declared and undeclared	(7,985)	(2,909)	(23,800)	(8,492)
Less: Amortization of preferred stock discount	(781)	(363)	(2,386)	(1,338)
Undistributed net income (loss) allocated to common stockholders	(21,983)	(9,428)	(225,039)	(15,164)
Distributed and undistributed net income (loss) - basic	(21,983)	(9,428)	(225,039)	(15,164)
Effect of deferred compensation plan	0	(1,526)	0	(5,603)
Effect of incremental subsidiary shares	0	0	0	(527)
Distributed and undistributed net income (loss) - diluted	$ (21,983)	$ (10,954)	$ (225,039)	$ (21,294)
Weighted average common shares outstanding:
Weighted average common shares outstanding – basic (in shares)	2,306	2,580	2,259	2,489
Effect of deferred compensation plan shares (in shares)	0	202	0	135
Effect of contingently issuable shares (in shares)	0	0	0	55
Weighted average common shares outstanding – diluted (in shares)	2,306	2,782	2,259	2,679
Income (loss) per share – basic:
Net income (loss) attributable to common stockholders (in dollars per share)	$ (9.53)	$ (3.65)	$ (99.62)	$ (6.09)
Income (loss) per share – diluted:
Net income (loss) attributable to common stockholders (in dollars per share)	$ (9.53)	$ (3.94)	$ (99.62)	$ (7.95)
Undeclared preferred dividends			$ 7,900