Components of Calculation of Basic and Diluted Earnings Per Share (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income (loss)	$ 43,063	$ 7,596	$ (20,021)	$ (243,413)	$ (94,715)	$ 163,094	$ 30,638	$ (175,034)
Net income attributable to Noncontrolling interest	(25,676)			0			(23,778)	0
Net Income (Loss) Available to Common Stockholders, Basic	17,387			(243,413)			6,860	(175,034)
Net Income (Loss) Available to Common Stockholders, Diluted	$ 43,063			$ (243,413)			$ 30,638	$ (175,034)
Weighted-average shares – basic (in shares)	15,319			15,183			15,298	15,168
Common Units and Series A Preferred Stock that are exchangeable for common share (in shares)	0			0			0	0
RSUs and PRSUs (in shares)	394			0			371	0
Weighted-average shares – diluted (in shares)	15,713			15,183			15,669	15,168
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	22,500						22,500
Restricted Stock Units and Performance Stock Units
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount				200				100
Series A Preferred Stock [Member]
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	200						200
Common Units
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	22,500						22,500