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Note 3 - Real Estate - Components of Rental Property (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Land |  | $ 3,978,775 | $ 2,781,888
Buildings and improvements |  | 14,067,824 | 9,281,267
Real estate |  | 18,046,599 | 12,063,155
Accumulated depreciation and amortization (1) | [1] | (3,010,699) | (2,717,114)
Total real estate, net |  | 15,035,900 | 9,346,041
Land [Member] |  |  |
Land |  | 3,962,447 | 2,758,936
Undeveloped Land [Member] |  |  |
Land |  | 16,328 | 22,952
Building [Member] |  |  |
Buildings and improvements |  | 10,042,225 | 5,911,602
Building Improvements [Member] |  |  |
Buildings and improvements |  | 1,999,319 | 1,918,641
Tenant Improvements [Member] |  |  |
Buildings and improvements |  | 987,216 | 820,027
Fixtures and Leasehold Improvements [Member] |  |  |
Buildings and improvements |  | 31,421 | 32,123
Above Market Leases [Member] |  |  |
Buildings and improvements |  | 166,840 | 125,858
In-place Leases [Member] |  |  |
Buildings and improvements |  | $ 840,803 | $ 473,016
[1] | At December 31, 2021 and 2020, the Company had accumulated amortization relating to in-place leases and above-market leases aggregating $569,648 and $499,022, respectively.

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- Definition Aggregate of the carrying amounts as of the balance sheet date of investments in building and building improvements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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- Definition Amount before accumulated depletion of real estate held for productive use, excluding land held for sale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 4 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=124098289&loc=d3e6812-107765 + Details
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- Definition Amount of real estate investment property which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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- Definition Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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