Equity and Earnings per Common Share, Earnings per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Numerator [Abstract]
Net income (loss)	$ (11,613)	$ 21,228	$ (12,683)	$ (48,836)	$ 9,615	$ (61,519)
Net (income) loss allocated to noncontrolling interests in Operating Partnership	240		227		(194)	1,137
Dividends on preferred stock	2,465		2,461		4,928	4,920
Net income (loss) applicable to common stockholders	$ (13,838)		$ (14,917)		$ 4,493	$ (65,302)
Denominator [Abstract]
Weighted average common shares outstanding (in shares)	17,073,943		16,882,077		17,069,861	16,746,758
Weighted average diluted shares outstanding (in shares)	17,096,124		16,895,408		17,092,064	16,759,818
Basic and Diluted EPS [Abstract]
Basic (in dollars per share)	$ (0.81)		$ (0.88)		$ 0.26	$ (3.90)
Diluted (in dollars per share)	$ (0.81)		$ (0.88)		$ 0.26	$ (3.90)
Anti-dilutive securities (in shares)	0		0		0	0