Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net income (loss)	$ (7,400)	$ 19,890
Less: Preferred stock dividends	4,515	3,320
Less: Undistributed earnings allocated to preferred stock	0	462
Net income/(Loss) attributable to common shareholders (for basic and diluted earnings per share)	$ (11,915)	$ 16,108
Weighted-average common shares outstanding for basic earnings per share (in shares)	44,263,334	39,798,215
Unvested restricted shares (in shares)	11,518	13,089
Weighted-average common shares outstanding for diluted earnings per share (in shares)	44,274,852	39,811,304
Basic earnings per share (in dollars per share)	$ (0.27)	$ 0.40
Diluted earnings per share (in dollars per share)	$ (0.27)	$ 0.40