Future potential payments to be received.

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- Definition

Number of properties managed under joint ventures.

+ References

No definition available.

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- Definition

Number of properties managed with no ownership.

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No definition available.

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- Definition

Number of self storage properties.

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No definition available.

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Organization [Line Items]

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No definition available.

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Redeemable non controlling interests disclosure.

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No definition available.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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No definition available.

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The number of states the entity operates in as of the balance sheet date.

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No definition available.

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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.

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The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer.

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Organization - Additional Information (Detail) $ in Thousands		9 Months Ended
	Jul. 02, 2020 USD ($)	Sep. 30, 2020 USD ($) Property State shares	Sep. 30, 2019 USD ($)	Jun. 30, 2020	Dec. 31, 2019 shares
Organization [Line Items]
Number of self-storage properties owned and managed \| Property		905
Number of states in which self-storage properties owned and managed \| State		30
Number of properties managed under joint ventures \| Property		93
Number of properties managed with no ownership \| Property		224
Cash payment for property acquisition		$ 417,930	$ 354,712
Noncontrolling limited partnership unit redemption value		one common share or cash
Geographic Concentration Risk [Member] \| Texas [Member] \| Revenue [Member]
Organization [Line Items]
Concentration risk, percentage		19.00%
Geographic Concentration Risk [Member] \| Florida [Member] \| Revenue [Member]
Organization [Line Items]
Concentration risk, percentage		13.00%
Life Storage LP [Member]
Organization [Line Items]
Cash payment for property acquisition		$ 417,930	$ 354,712
Units of redeemable noncontrolling interest in operating partnership \| shares		243,966			246,466
Life Storage LP [Member]
Organization [Line Items]
Percentage of ownership interest of the subsidiary and its limited partnership which controls the operations of the Operating Partnership		99.50%
Warehouse Anywhere LLC [Member]
Organization [Line Items]
Percentage of ownership interest of the subsidiary and its limited partnership which controls the operations of the Operating Partnership				60.00%
Cash payment for property acquisition	$ 2,000
Estimated potential future payment		$ 300