Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands	Total	Common Stock Outstanding	Additional  Paid-In Capital	Retained  Earnings  (Accumulated Deficit)	Treasury Stock	Parent	Non-Controlling Interest
Beginning balance at Dec. 31, 2018	$ 503,009	$ 481	$ 833,810	$ (331,282)	$ 0	$ 503,009	$ 0
Beginning balance (in shares) at Dec. 31, 2018		48,116,379
Increase (Decrease) in Stockholders' Equity
Grants of restricted stock (shares)		108,000
Grants of restricted stock	0	$ 1	(1)
Vesting of restricted stock	70		70			70
Net income (loss)	27,876			27,876		27,876
Dividends declared on common stock	(14,949)		36	(14,985)		(14,949)
Ending balance at Mar. 31, 2019	516,006	$ 482	833,915	(318,391)	0	516,006	0
Ending balance (in shares) at Mar. 31, 2019		48,224,379
Beginning balance at Dec. 31, 2019	564,461	$ 535	889,227	(325,301)	0	564,461	0
Beginning balance (in shares) at Dec. 31, 2019		53,523,876
Increase (Decrease) in Stockholders' Equity
Proceeds from non-controlling interest, net of offering costs	42						42
Vesting of restricted stock	165		165			165
Treasury stock (in shares)		(100,000)
Treasury Stock	(578)				(578)	(578)
Net income (loss)	(381,855)			(381,857)		(381,857)	2
Dividends declared on non-controlling interest	(2)						(2)
Ending balance at Mar. 31, 2020	$ 182,233	$ 535	$ 889,392	$ (707,158)	$ (578)	$ 182,191	$ 42
Ending balance (in shares) at Mar. 31, 2020		53,423,876