Earnings Per Share (Basic and Diluted EPS Computations) (Details) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net income	$ 6,290	$ 3,513
Distributions paid on unvested shares	(113)	(77)
Net income attributable to common stockholders used to calculate basic and diluted earnings per share	$ 6,177	$ 3,436
Weighted-average common shares – basic	114,471	116,462
Weighted-average common shares – diluted	114,486	116,880
Previously granted awards, unvested
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Plus incremental weighted-average shares from time-vested conversions, less assumed stock repurchases	15	90
Future period LTI Plan awards
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Plus incremental weighted-average shares from time-vested conversions, less assumed stock repurchases	0	328