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		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Earnings Per Share [Abstract]
Net Income (Loss)	$ 27,899	$ 23,229	$ 50,367	$ 47,056
Noncontrolling interests	(973)	(159)	(1,695)	(686)
Net Income (Loss) Attributable to Stockholders	26,926	23,070	48,672	46,370
Preferred stockholder dividends	(2,084)	(2,084)	(4,168)	(4,168)
Net Income (Loss) Attributable to Common Stockholders	$ 24,842	$ 20,986	$ 44,504	$ 42,202
Shares (in thousands):
Basic: Weighted-average number of common shares outstanding (in shares)	6,999	7,211	7,010	7,204
Plus: Incremental shares from assumed conversion of dilutive instruments (in shares)	1,253	1,190	1,280	1,192
Diluted: Weighted-average number of common shares outstanding (in shares)	8,252	8,401	8,290	8,396
Earnings (Loss) per share—Basic (in $ per share)	$ 3.55	$ 2.91	$ 6.35	$ 5.86
Earnings (Loss) per Share—Diluted (in $ per share)	$ 3.26	$ 2.75	$ 5.87	$ 5.52