The amount of contribution to real estate venture.

No definition available.

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- Definition

The amount of depreciation and amortization reported by an equity method investment of the entity.

+ References

No definition available.

+ Details

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- Definition

The amount of net interest income (expense) reported by an equity method investment of the entity.

+ References

No definition available.

+ Details

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- Definition

The amount of operating expenses reported by an equity method investment of the entity.

+ References

No definition available.

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- Definition

The amount of real estate property reported by an equity method investment of the entity.

+ References

No definition available.

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- Definition

The amount of other expenses reported by an equity method investment of the entity.

+ References

No definition available.

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- Definition

The amount of other liabilities reported by an equity method investment of the entity.

+ References

No definition available.

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- Definition

Represents the number of real estate properties that were acquired.

+ References

No definition available.

+ Details

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Namespace Prefix:	cube_
Data Type:	xbrli:integerItemType
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- Definition

The number of self-storage facilities involved in transaction.

+ References

No definition available.

+ Details

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- Definition

Represents the intangible lease assets recorded as part of the real estate acquisition.

+ References

No definition available.

+ Details

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- Definition

Amount of contractual principal due at origination of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

+ References

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-Publisher SEC
-Name Regulation S-X (SX)
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-Paragraph 1
-Subparagraph (SX 210.12-29(Column F))
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- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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-Subparagraph (c)
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- References

No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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-Subparagraph (b)(1)
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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

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- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.12)
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- Definition

Amount of income (loss) for proportionate share of equity method investee's income (loss).

+ References

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-SubTopic 10
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-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570

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- Definition

Amount of investment in equity method investee and investment in and advance to affiliate.

+ References

+ Details

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- Definition

Amount of liabilities and equity items, including the portion of equity attributable to noncontrolling interests, if any.

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- References

No definition available.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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-Subparagraph (SX 210.5-02(22))
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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which is directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent (that is, noncontrolling interest, previously referred to as minority interest).

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- Definition

The cash outflow from the acquisition of a piece of land, anything permanently fixed to it, including buildings, structures on it and so forth; includes real estate intended to generate income for the owner; excludes real estate acquired for use by the owner.

+ References

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- Definition

The percentage rate used to calculate dividend payments on preferred stock.

+ References

No definition available.

+ Details

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The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

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- Definition

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INVESTMENT IN UNCONSOLIDATED REAL ESTATE VENTURE (Details) $ in Thousands					3 Months Ended			6 Months Ended
	Feb. 05, 2021 USD ($)	Mar. 19, 2020 USD ($) facility	Sep. 05, 2018 USD ($) property	Dec. 15, 2016	Jun. 30, 2021 USD ($) property	Jun. 29, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2021 USD ($) property	Jun. 30, 2020 USD ($)	Mar. 31, 2021 USD ($)	Mar. 17, 2021	Jan. 21, 2021 USD ($)	Dec. 31, 2020 USD ($) property	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Investment in Unconsolidated Real Estate Venture
Investment in real estate entities					$ 97,301			$ 97,301					$ 92,071
Acquisitions of storage facilities								31,516	$ 72,814
Credit facility, outstanding					24,600			24,600					117,800
Investment in joint venture					5,000			5,000					5,000
ASSETS
Storage facilities, net					4,510,039			4,510,039					4,505,814
Total assets					4,771,232			4,771,232					4,778,142
Total revenues					199,247		$ 163,798	388,088	327,879
Equity
CubeSmart					1,846,524			1,846,524					1,832,216
Joint venture partners					13,509			13,509					8,632
Total liabilities and equity					4,771,232			4,771,232					4,778,142
Equity					1,860,033		1,768,717	1,860,033	1,768,717	$ 1,886,199			1,840,848	$ 1,790,290	$ 1,807,336
Net income (loss)					50,366		38,932	93,681	77,249
Company's share of net (loss) income					316		(174)	336	(179)
HVPSE
Investment in Unconsolidated Real Estate Venture
Ownership interest in partnership (as a percent)		10.00%
Number of self-storage facilities acquired \| facility		14
Acquisitions of storage facilities		$ 135,300
Intangible value of the in-place leases		7,700
Contribution To Real Estate Venture		$ 5,600
Interest rate (as percentage)		1.60%
HVPSE \| Term Loan Facility
Investment in Unconsolidated Real Estate Venture
Proceeds from debt		$ 81,600
HVP IV
Investment in Unconsolidated Real Estate Venture
Amount of debt repaid								137,700
HVP IV \| Secured Loan Due May 2021
Investment in Unconsolidated Real Estate Venture
Outstanding debt					212,300			$ 212,300
HVP IV \| LIBOR \| Secured Loan Due May 2021
Investment in Unconsolidated Real Estate Venture
Interest rate (as percentage)								1.95%
HHFNE
Investment in Unconsolidated Real Estate Venture
Outstanding debt					$ 45,000			$ 45,000
HHFNE \| LIBOR
Investment in Unconsolidated Real Estate Venture
Interest rate (as percentage)				1.20%
HHFNE \| LIBOR \| Secured Debt Due December 2019
Investment in Unconsolidated Real Estate Venture
Interest rate (as percentage)								1.20%
Arizona \| HVP IV
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| property					2			2
Maryland \| HVP IV
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| property					2			2
Connecticut \| HVP IV
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| property					3			3
Connecticut \| HHFNE
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| property					3			3
Massachusetts \| HHFNE
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| property					6			6
Minnesota \| HVP IV
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| property					1			1
Rhode Island \| HHFNE
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| property					2			2
Vermont \| HHFNE
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| property					2			2
Illinois \| HVP IV
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| property					4			4
Florida \| HVPSE
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| facility		2
Florida \| HVP IV
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| property					4			4
Texas \| HVP IV
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| property					8			8
Texas \| HHF
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| property					34			34
North Carolina \| HHF
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| property					1			1
South Carolina \| HVPSE
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| facility		4
Georgia \| HVPSE
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| facility		8
Georgia \| HVP IV
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| property					2			2
Pennsylvania \| HVP IV
Investment in Unconsolidated Real Estate Venture
Number of storage facilities owned by investee \| property					1			1
Ventures
Investment in Unconsolidated Real Estate Venture
Investment in real estate entities					$ 97,301			$ 97,301					$ 92,071
Number of storage facilities owned by investee \| property					91			91					83
ASSETS
Storage facilities, net					$ 780,772			$ 780,772					$ 662,833
Other assets					30,537			30,537					18,112
Total assets					811,309			811,309					680,945
Total revenues					21,240		16,797	40,063	31,402
LIABILITIES AND CAPITAL
Debt					439,155			439,155					359,985
Other liabilities					22,650			22,650					11,588
Equity
CubeSmart					97,301			97,301					92,071
Joint venture partners					252,203			252,203					217,301
Total liabilities and equity					811,309			811,309					680,945
Operating expenses					(9,492)		(7,978)	(18,097)	(14,920)
Other expenses					(854)		(121)	(851)	(234)
Interest expense, net					(2,673)		(2,985)	(6,208)	(5,705)
Depreciation and amortization					(9,008)		(9,100)	(17,720)	(15,523)
Net income (loss)					(787)		(3,387)	(2,813)	(4,980)
Company's share of net (loss) income					316		$ (174)	336	$ (179)
HVP V
Investment in Unconsolidated Real Estate Venture
Investment in real estate entities					$ 7,364			$ 7,364
Ownership interest in partnership (as a percent)					20.00%			20.00%			20.00%
Number of storage facilities owned by investee \| property					2			2
Acquisitions of storage facilities						$ 37,000
Intangible value of the in-place leases					$ 1,500			$ 1,500
Contribution To Real Estate Venture					7,400			7,400
HVPSE
Investment in Unconsolidated Real Estate Venture
Investment in real estate entities					$ 4,872			$ 4,872					$ 5,015
Ownership interest in partnership (as a percent)					10.00%			10.00%
Number of storage facilities owned by investee \| property					14			14					14
HVP IV
Investment in Unconsolidated Real Estate Venture
Investment in real estate entities					$ 25,141			$ 25,141					$ 21,760
Ownership interest in partnership (as a percent)					20.00%			20.00%
Number of storage facilities owned by investee \| property					27			27					21
Contribution To Real Estate Venture					$ 30,600			$ 30,600
HHFNE
Investment in Unconsolidated Real Estate Venture
Investment in real estate entities					$ 1,448			$ 1,448					$ 1,628
Ownership interest in partnership (as a percent)					10.00%			10.00%
Number of storage facilities owned by investee \| property					13			13					13
Contribution To Real Estate Venture					$ 3,800			$ 3,800
HHF
Investment in Unconsolidated Real Estate Venture
Investment in real estate entities					$ 58,476			$ 58,476					$ 63,668
Ownership interest in partnership (as a percent)					50.00%			50.00%
Number of storage facilities owned by investee \| property					35			35					35
Amount of loan obtained												$ 105,000
Interest on real estate venture debt												2.58%
Amount of debt repaid	$ 100,000
Capital Storage Partners, LLC
Investment in Unconsolidated Real Estate Venture
Ownership interest in partnership (as a percent)			100.00%
Number of self-storage facilities acquired \| property			22
Investment in joint venture			$ 5,000
Series A Preferred shares, percentage			11.00%
Capital Storage Partners, LLC \| Florida
Investment in Unconsolidated Real Estate Venture
Number of self-storage facilities acquired \| property			4
Capital Storage Partners, LLC \| Texas
Investment in Unconsolidated Real Estate Venture
Number of self-storage facilities acquired \| property			13
Capital Storage Partners, LLC \| Oklahoma
Investment in Unconsolidated Real Estate Venture
Number of self-storage facilities acquired \| property			5