Note 12 - Notes Payable - Notes Payable (Details) - USD ($) $ in Millions		12 Months Ended	24 Months Ended
		Dec. 31, 2023	Dec. 31, 2022
Balance, Net		$ 7,262.9	$ 6,781.0
Weighted Average [Member]
Interest Rate	[1]	3.66%	3.45%
Notes Payable [Member]
Fair value debt adjustments, net		$ 24.9	$ 44.4
Deferred financing costs, net (2)	[2]	(65.0)	(66.4)
Unsecured Debt [Member]
Gross Balance		7,303.0
Fair value debt adjustments, net		24.9
Unsecured Debt [Member] | Notes Payable [Member]
Gross Balance		7,303.0	6,803.0
Line of Credit [Member] | Notes Payable [Member]
Gross Balance	[3]	$ 0.0	$ 0.0

[1] Weighted-average interest rate

[2] As of December 31, 2023 and 2022, the Company had $6.7 million and $2.5 million of deferred financing costs, net related to the Credit Facility that are included in Other assets on the Company’s Consolidated Balance Sheets, respectively.

[3] Accrues interest at a rate of Adjusted Term Secured Overnight Financing Rate (“Adjusted Term SOFR”), as defined, plus 0.755% as of December 31, 2023 and 2022.