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Note 13 - Fair Value Measurements (Details Textual) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 USD ($) | Sep. 30, 2023 USD ($) | Sep. 30, 2022 USD ($) | Dec. 31, 2022 USD ($)
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |  | $ 10 | $ 13 | $ 891 |
Embedded Derivative, Fair Value of Embedded Derivative Liability |  | 63,000 | 63,000 |  | $ 56,000
Property [Member] |  |  |  |  |
Tangible Asset Impairment Charges |  |  | 14,000 |  |
Noncontrolling Interest [Member] |  |  |  |  |
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |  | $ 10 | $ 13 | $ 891 |
Long Island, NY [Member] |  |  |  |  |
Number of Real Estate Properties |  | 8 | 8 |  |
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |  |  |  |  | 135,700
Embedded Derivative, Fair Value of Embedded Derivative Liability |  | $ 63,000 | $ 63,000 |  |
Long Island, NY [Member] | Preferred Units [Member] |  |  |  |  |
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |  |  |  |  | 122,100
Long Island, NY [Member] | Common Units [Member] |  |  |  |  |
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |  |  |  |  | 13,600
Long Island, NY [Member] | Noncontrolling Interest [Member] |  |  |  |  |
Noncontrolling Interest, Increase from Subsidiary Equity Issuance |  |  |  |  | 79,700
Estimate of Fair Value Measurement [Member] |  |  |  |  |
Notes Payable, Fair Value Disclosure | [1] | 5,758,369 | 5,758,369 |  | 5,837,401
Fair Value, Inputs, Level 2 [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |
Notes Payable, Fair Value Disclosure |  | 5,800,000 | 5,800,000 |  | 5,800,000
Deferred Costs |  | $ 60,700 | $ 60,700 |  | $ 66,400
Fair Value, Inputs, Level 3 [Member] | Measurement Input, Discount Rate [Member] |  |  |  |  |
Embedded Derivative Liability, Measurement Input |  | 0.0775 | 0.0775 |  | 0.0800
Fair Value, Inputs, Level 3 [Member] | Estimate of Fair Value Measurement [Member] |  |  |  |  |
Deferred Costs |  | $ 1,300 | $ 1,300 |  | $ 1,700
[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 September 30, 2023 and December 31, 2022, were $5.8 billion and $5.8 billion, respectively. The carrying value includes deferred financing costs of $60.7 million and $66.4 million as of September 30, 2023 and December 31, 2022, respectively.

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