Earnings per Share - Schedule of Components of Basic and Diluted EPS (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Jun. 30, 2020
Basic EPS
Consolidated net income attributable to common stockholders	$ 9,313	$ 5,280	$ 26,695	$ 11,922
Allocation of earnings to participating restricted shares	(92)	(33)	(222)	(68)
Consolidated net income attributable to unrestricted common stockholders	9,221	5,247	26,473	11,854
Effect of dilutive securities
Restricted stock grants and Manager and director fee shares	92	33
Interest expense (add back) and assumed conversion of shares from convertible senior notes	2,237	0	6,836	0
Diluted EPS
Consolidated net income attributable to common stockholders and dilutive securities	$ 11,550	$ 5,280	$ 33,309	$ 11,854
Basic EPS
Consolidated net income attributable to unrestricted common stockholders (in shares)	22,862,429	22,844,192	22,835,237	22,575,480
Allocation of earnings to participating restricted shares (in shares)	0	0	0	0
Effect of dilutive securities
Restricted stock grants and Manager and director fee shares (in shares)	229,291	145,424
Interest expense (add back) and assumed conversion of shares from convertible senior notes (in shares)	7,315,929	0	7,451,376	0
Diluted EPS
Consolidated net income attributable to common stockholders and dilutive securities (in shares)	30,407,649	22,989,616	30,286,613	22,575,480
Per Share Amount
Consolidated net income attributable to unrestricted common stockholders (in dollars per share)	$ 0.40	$ 0.23	$ 1.16	$ 0.53
Consolidated net income attributable to common stockholders and dilutive securities (in dollars per share)	$ 0.38	$ 0.23	$ 1.10	$ 0.53
Class of warrant or right, outstanding (in shares)	6,500,000	6,500,000	6,500,000	6,500,000	6,500,000