Note 3 - Weingarten Merger - Pro Forma Information (Details) - Weingarten Realty Investors [Member] - USD ($) $ / shares in Units, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues from rental properties, net		$ 401.4	$ 366.8	$ 1,186.4	$ 1,109.1
Net income	[1]	561.4	(21.9)	854.3	797.6
Net income/(loss) available to the Company’s common shareholders		$ 553.4	$ (29.8)	$ 828.3	$ 775.1
Net income/(loss) available to the Company’s common shareholders per common share:
Basic (1) (in dollars per share)	[1]	$ 0.91	$ (0.05)	$ 1.35	$ 1.27
Diluted (1) (in dollars per share)	[1]	$ 0.90	$ (0.05)	$ 1.34	$ 1.27

[1] The pro forma earnings for the three and nine months ended September 30, 2021 were adjusted to exclude $47.0 million and $50.2 million of merger costs, respectively, while the pro forma earnings for the nine months ended September 30, 2020 were adjusted to include $50.2 million of merger costs incurred.