Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Earnings Per Share [Abstract]
Net income (loss)									$ 7,464	$ (26,137)	$ 183,040
Net (income) attributable to noncontrolling interest									(795)	(783)	(1,590)
Net income (loss) attributable to the Company	$ (1,479)	$ 7,693	$ (4,158)	$ 4,613	$ (7,179)	$ (7,787)	$ (6,345)	$ (5,609)	6,669	(26,920)	181,450
Preferred dividend									0	0	(900)
Net income (loss) attributable to common shares									$ 6,669	$ (26,920)	$ 180,550
Weighted-average common shares outstanding-basic and diluted (in shares)									8,639,316	8,717,767	8,717,767
EPS - attributable to common shares- basic and diluted (in dollars per share)									$ 0.77	$ (3.09)	$ 20.71