Quarterly Operating Results (unaudited) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Quarterly Financial Information Disclosure [Abstract]
Total revenue	$ 74,695	$ 90,080	$ 87,874	$ 75,679	$ 77,044	$ 88,897	$ 85,374	$ 72,915	$ 328,328	$ 324,230	$ 301,844
Total hotel operating expenses	67,234	70,182	71,741	65,786	68,707	68,522	66,237	62,630	271,661	266,078	248,806
Operating income	7,461	19,898	16,133	9,893	8,337	20,375	19,137	10,285	53,385	58,134	56,365
Net income attributable to common shareholders	$ (2,349)	$ 10,002	$ 9,437	$ 1,613	$ (174)	$ 14,580	$ 13,387	$ 2,848	$ 18,703	$ 30,641	$ 29,478
Income per common share, basic (in dollars per share)	$ (0.05)	$ 0.21	$ 0.20	$ 0.03	$ 0	$ 0.31	$ 0.29	$ 0.06	$ 0.39	$ 0.66	$ 0.73
Income per common share, diluted (in dollars per share)	$ (0.05)	$ 0.21	$ 0.20	$ 0.03	$ 0	$ 0.31	$ 0.29	$ 0.06	$ 0.39	$ 0.66	$ 0.73
Weighted average number of common shares outstanding:
Basic (in shares)	46,919,035	46,913,922	46,760,016	46,556,710	46,513,688	46,149,765	45,867,625	45,753,792	46,788,784	46,073,515	39,859,143
Diluted (in shares)	47,220,671	47,152,166	46,976,999	46,734,958	46,765,797	46,384,969	46,084,688	46,022,690	47,023,280	46,243,660	40,112,266