Earnings Per Common Share - Computation of Basic Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Net loss	$ (2,956)	$ 2,962	$ (2,614)	$ 13,655
Net loss (income) attributable to noncontrolling interest	68	(69)	60	(319)
Allocation of loss (income) to restricted share awards	0	(116)	(136)	(248)
(Loss) Income attributable to RPT	(2,888)	2,777	(2,690)	13,088
Preferred share dividends	(1,675)	(1,675)	(3,350)	(3,350)
Net (loss) income available to common shareholders - Basic and Diluted	$ (4,563)	$ 1,102	$ (6,040)	$ 9,738
Weighted average shares outstanding, Basic (in shares)	79,976	79,764	79,942	79,754
Restricted stock awards using the treasury method (in shares)	0	392	0	394
Weighted average shares outstanding, Diluted (in shares)	79,976	80,156	79,942	80,148
Income per common share, Basic (in usd per share)	$ (0.06)	$ 0.01	$ (0.08)	$ 0.12
Income per common share, Diluted (in usd per share)	$ (0.06)	$ 0.01	$ (0.08)	$ 0.12