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Real Estate - Investments in Real Estate Properties (Detail) ft² in Thousands, $ in Thousands | Mar. 31, 2021 USD ($) ft² a Building | Dec. 31, 2020 USD ($) ft² a Building
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Real Estate Properties [Line Items] |  |
Total investments in real estate properties | $ 50,459,365 | $ 50,384,328
Less accumulated depreciation | 6,823,824 | 6,539,156
Net investments in real estate properties | 43,635,541 | 43,845,172
Improved Land [Member] |  |
Real Estate Properties [Line Items] |  |
Total investments in real estate properties | $ 12,025,439 | $ 12,017,676
Building and Improvements [Member] |  |
Real Estate Properties [Line Items] |  |
Square feet of properties | ft² | 441,737 | 441,336
Number of buildings | Building | 2,265 | 2,261
Total investments in real estate properties | $ 31,520,177 | $ 31,489,943
Development Portfolio, Including Cost of Land: Pre-stabilized [Member] |  |
Real Estate Properties [Line Items] |  |
Square feet of properties | ft² | 5,572 | 6,076
Number of buildings | Building | 18 | 24
Total investments in real estate properties | $ 480,918 | $ 553,266
Properties Under Development [Member] |  |
Real Estate Properties [Line Items] |  |
Square feet of properties | ft² | 22,990 | 22,004
Number of buildings | Building | 62 | 61
Total investments in real estate properties | $ 1,550,798 | $ 1,329,345
Land [Member] |  |
Real Estate Properties [Line Items] |  |
Square feet of properties | a | 5,113 | 5,304
Total investments in real estate properties | $ 1,699,738 | $ 1,606,358
Other Real Estate Investments [Member] |  |
Real Estate Properties [Line Items] |  |
Total investments in real estate properties | $ 3,182,295 | $ 3,387,740

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- Definition Area of a real estate property. + References No definition available. + Details
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- Definition The number of real estate properties owned as of the balance sheet date. + References No definition available. + Details
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- Definition The cumulative amount of depreciation for real estate property held for investment purposes. + 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(3)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + 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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