Note 15 - Fair Value Measurements - Estimate of Fair Value Differs From Carrying Amounts (Details) - USD ($) $ in Thousands		Mar. 31, 2024	Dec. 31, 2023
Reported Value Measurement [Member]
Notes payable, net (2)	[1]	$ 7,242,570	$ 7,262,851
Reported Value Measurement [Member] | Mortgages [Member]
Mortgages payable, net	[2]	351,376	353,945
Reported Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | Mortgage and Other Financing Receivables [Member]
Mortgage and other financing receivables (1)	[3]	274,974	130,745
Estimate of Fair Value Measurement [Member]
Notes payable, net (2)	[1]	6,597,594	6,671,450
Estimate of Fair Value Measurement [Member] | Mortgages [Member]
Mortgages payable, net	[2]	326,985	329,955
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member] | Mortgage and Other Financing Receivables [Member]
Mortgage and other financing receivables (1)	[3]	$ 240,731	$ 122,323

[1] The Company determined that the valuation of its senior unsecured notes were classified within Level 2 of the fair value hierarchy. The estimated fair value amounts classified as Level 2 as of March 31, 2024 and December 31, 2023, were $6.6 billion and $6.7 billion, respectively. The carrying value includes deferred financing costs of $70.6 million and $65.0 million as of March 31, 2024 and December 31, 2023, respectively.

[2] The Company determined that its valuation of its mortgages payable were classified within Level 3 of the fair value hierarchy. The carrying value includes deferred financing costs of $1.1 million and $1.2 million as of March 31, 2024 and December 31, 2023, respectively.

[3] The Company determined that the valuation of its mortgage and other financing receivables were classified within Level 3 of the fair value hierarchy. The carrying value includes allowance for credit losses of $3.3 million and $1.3 million as of March 31, 2024 and December 31, 2023, respectively.