CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Earnings (Deficit)	Total Stockholders’ Equity	Non-Controlling Interests
Balance (in shares) at Dec. 31, 2016		28,482,756
Balance at Dec. 31, 2016	$ 429,673	$ 283	$ 420,056	$ (1,310)	$ 419,029	$ 10,644
Increase (Decrease) in Stockholders' Equity
Stock-based compensation (in shares)		116,160
Stock‑based compensation	581		581		581
Net income	30,432			30,407	30,407	25
Dividends declared	(30,847)			(30,847)	(30,847)
Contributions from non-controlling interests	12					12
Distributions to non-controlling interests	(10,681)					(10,681)
Balance (in shares) at Dec. 31, 2017		28,598,916
Balance at Dec. 31, 2017	419,170	$ 283	420,637	(1,750)	419,170	0
Increase (Decrease) in Stockholders' Equity
Stock-based compensation (in shares)		156,749
Stock‑based compensation	1,102		1,102		1,102
Net income	38,596			38,596	38,596	0
Dividends declared	$ (33,281)			(33,281)	(33,281)
Balance (in shares) at Dec. 31, 2018	28,755,665	28,755,665
Balance at Dec. 31, 2018	$ 425,587	$ 283	421,739	3,565	425,587	0
Increase (Decrease) in Stockholders' Equity
Stock-based compensation (in shares)		109,945
Stock‑based compensation	1,880		1,880		1,880
Net income	36,991			36,991	36,991	0
Dividends declared	$ (38,119)			(38,119)	(38,119)
Balance (in shares) at Dec. 31, 2019	28,865,610	28,865,610
Balance at Dec. 31, 2019	$ 426,339	$ 283	$ 423,619	$ 2,437	$ 426,339	$ 0