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SUBSEQUENT EVENTS (Details) - Subsequent event - Georgia $ in Millions | 1 Months Ended
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Jul. 31, 2022 USD ($) property
Subsequent Events |
Number of self-storage facilities acquired | property | 1
Aggregate purchase price | $ | $ 20.7

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- Definition Represents the number of real estate properties that were acquired. + References No definition available. + Details
Name: | cube_NumberOfRealEstatePropertiesAcquired
Namespace Prefix: | cube_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

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- Definition The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 13 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3213-108585 + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Details
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Period Type: |

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- Details
Name: | srt_StatementGeographicalAxis=stpr_GA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |