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STORAGE PROPERTIES - Summary (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
--- | --- | ---
STORAGE FACILITIES |  |
Storage properties | $ 4,716,549 | $ 4,699,844
Less: Accumulated depreciation | (944,958) | (925,359)
Storage properties, net (including VIE assets of $100,143 and $92,612, respectively) | 3,771,591 | 3,774,485
Land |  |
STORAGE FACILITIES |  |
Storage properties | 859,607 | 858,541
Buildings and improvements |  |
STORAGE FACILITIES |  |
Storage properties | 3,627,204 | 3,619,594
Equipment |  |
STORAGE FACILITIES |  |
Storage properties | 124,667 | 128,111
Construction in progress |  |
STORAGE FACILITIES |  |
Storage properties | $ 105,071 | $ 93,598

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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=119400593&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=119400593&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=119400593&loc=d3e572229-122910 + Details
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