Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net increase (decrease) in shareholders' equity resulting from operations
Net income (loss) attributable to common stockholders	$ 37,856	$ (129,398)
Add: Net income (loss) attributable to Convertible Non-controlling Interests	577	(2,055)
Net income (loss) related to common stockholders and Convertible Non-controlling Interests	38,433	(131,453)
Dividends Paid:
Dividends	(13,334)	(20,057)
Undistributed (Distributed in excess of) earnings:
Total undistributed (distributed in excess of) earnings	$ 25,099	$ (151,510)
Weighted average shares outstanding (basic and diluted):
Weighted average shares outstanding (basic and diluted) (in shares)	44,448,183	43,283,638
Basic earnings per share of common stock:
Distributed (in usd per share)	$ 0.30	$ 0.45
Undistributed (Distributed in excess of) (in usd per share)	0.56	(3.49)
Basic earnings per common share (in usd per share)	0.86	(3.04)
Diluted earnings per share of common stock:
Distributed (in usd per share)	0.30	0.45
Undistributed (Distributed in excess of) (usd per share)	0.56	(3.49)
Diluted earnings per common share (in usd per share)	$ 0.86	$ (3.04)
Net increase (decrease) in equity resulting from operations	$ 900	$ 1,200
Net increase (decrease) in equity resulting from operations	900	1,200
Common Stock
Dividends Paid:
Dividends	(13,134)	(19,748)
Undistributed (Distributed in excess of) earnings:
Total undistributed (distributed in excess of) earnings	$ 24,722	$ (149,146)
Weighted average shares outstanding (basic and diluted):
Weighted average shares outstanding (basic and diluted) (in shares)	43,781,684	42,598,138
Non-controlling Interest
Dividends Paid:
Dividends	$ (200)	$ (309)
Undistributed (Distributed in excess of) earnings:
Total undistributed (distributed in excess of) earnings	$ 377	$ (2,364)
Weighted average shares outstanding (basic and diluted):
Weighted average shares outstanding (basic and diluted) (in shares)	666,499	685,500