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, 2021
Revenues from rental properties, net		$ 401.4	$ 1,186.4
Net income	[1]	561.4	854.3
Net income available to the Company’s common shareholders (1)		$ 553.4	$ 828.3
Net income available to the Company’s common shareholders per common share:
Basic (1) (in dollars per share)	[1]	$ 0.91	$ 1.35
Diluted (1) (in dollars per share)	[1]	$ 0.90	$ 1.34

[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.