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)									$ 11,267	$ (21,743)	$ 182,692
Net (income ) loss attributable to noncontrolling interest									(2,237)	5,785	(8,993)
Net income (loss) attributable to the Company	$ 403	$ 7,987	$ (2,306)	$ 2,946	$ 538	$ (7,571)	$ (2,778)	$ (6,147)	9,030	(15,958)	173,699
Preferred dividend									0	(1)	(901)
Net income (loss) applicable to common shares									$ 9,030	$ (15,959)	$ 172,798
Weighted-average common shares outstanding-basic (in shares)									16,045,796	15,997,076	15,982,528
Effect of conversion of preferred shares (in shares)									0	0	715,000
Weighted-average common shares outstanding- diluted (in shares)									16,045,796	15,997,076	16,697,966
EPS - attributable to common shares- basic (in dollars per share)									$ 0.56	$ (1.00)	$ 10.81
EPS - attributable to common shares- diluted (in dollars per share)									$ 0.56	$ (1.00)	$ 10.35