Earnings Per Common Share - Computation of Basic Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Earnings Per Share [Abstract]
Net income (loss)	$ 26,297	$ (1,993)	$ 80,836	$ (4,607)
Net (income) loss attributable to noncontrolling interest	(595)	46	(1,843)	106
Allocation of (income) loss to restricted share awards	(171)	0	(465)	(136)
Income (loss) attributable to RPT	25,531	(1,947)	78,528	(4,637)
Preferred share dividends	(1,676)	(1,676)	(5,026)	(5,026)
Net income available to common shareholders - Basic	23,855	(3,623)	73,502	(9,663)
Add back preferred shares for dilution	1,676	0	5,026	0
Net income (loss) available to common shareholders - Diluted	$ 25,531	$ (3,623)	$ 78,528	$ (9,663)
Weighted average shares outstanding, Basic (in shares)	80,418	80,051	80,228	79,978
Restricted stock awards using the treasury method (in shares)	1,416	0	1,299	0
Dilutive effect of preferred shares (in shares)	7,017	0	7,017	0
Weighted average shares outstanding, Diluted (in shares)	88,851	80,051	88,544	79,978
Income (loss) per common share, Basic (in usd per share)	$ 0.30	$ (0.05)	$ 0.92	$ (0.12)
Income (loss) per common share, Diluted (in usd per share)	$ 0.29	$ (0.05)	$ 0.89	$ (0.12)