Earnings (Loss) Per Share - Schedule of Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Earnings Per Share [Abstract]
Net Income (Loss)	$ 29,782	$ 25,359	$ 27,899	$ 22,468	$ 1,093	$ 27,931	$ 23,229	$ 23,827	$ 105,508	$ 76,080	$ 39,939
Noncontrolling interests									(9,859)	(551)	(2,927)
Net Income (Loss) Attributable to Stockholders									95,649	75,529	37,012
Preferred stockholder dividends									(8,337)	(8,337)	(8,336)
Net Income (Loss) Attributable to Common Stockholders	$ 20,808	$ 22,000	$ 24,842	$ 19,662	$ 77	$ 24,913	$ 20,986	$ 21,216	$ 87,312	$ 67,192	$ 28,676
Shares (in thousands):
Basic: Weighted-average number of shares outstanding (in shares)									6,963	7,174	7,013
Plus: Incremental shares from assumed conversion of dilutive instruments (in shares)									1,186	1,353	234
Diluted: Weighted-average number of shares outstanding (in shares)									8,149	8,527	7,247
Earnings per share—basic (in $ per share)	$ 3.02	$ 3.17	$ 3.55	$ 2.80	$ 0.01	$ 3.47	$ 2.91	$ 2.95	$ 12.54	$ 9.37	$ 4.09
Earnings per share—diluted (in $ per share)	$ 2.83	$ 2.95	$ 3.26	$ 2.61	$ 0.01	$ 3.19	$ 2.75	$ 2.77	$ 11.74	$ 8.86	$ 3.96