Net rentable square feet.

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- Definition

Number of facilities owned

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- Definition

Number Of Self-Storage Facilities To Be Acquired

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- Definition

Percentage of Issued Stapled Securities Company Proposed Acquiring

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Price of a single share of a number of saleable stocks paid or offered to be paid in a business combination.

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Fair value at acquisition-date of the assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interests issued by the acquirer, including but not limited to, instruments or interests issued or issuable in consideration for the business combination.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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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.

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Subsequent Events (Narrative) (Details)			2 Months Ended	12 Months Ended
Subsequent Events (Narrative) (Details)	Feb. 14, 2020 item $ / shares	Jan. 24, 2020 USD ($)	Feb. 25, 2020 USD ($) ft² item	Dec. 31, 2019 ft²	Jan. 24, 2020 EUR (€)
Subsequent Event [Line Items]
Net rentable square feet \| ft²				168,908
Subsequent Event [Member]
Subsequent Event [Line Items]
Number of self-storage facilities acquired or under contract to be acquired			14
Net rentable square feet \| ft²			1,100,000
Total cost of acquisition \| $			$ 245,300,000
Subsequent Event [Member] \| National Storage REIT [Member]
Subsequent Event [Line Items]
Percentage of issued stapled securities Public Storage proposed acquiring	100.00%
Number of facilities owned	167
Cash price per share \| $ / shares	$ 2.40
Subsequent Event [Member] \| Ohio [Member]
Subsequent Event [Line Items]
Number of self-storage facilities acquired or under contract to be acquired			4
Subsequent Event [Member] \| California [Member]
Subsequent Event [Line Items]
Number of self-storage facilities acquired or under contract to be acquired			3
Subsequent Event [Member] \| New York [Member]
Subsequent Event [Line Items]
Number of self-storage facilities acquired or under contract to be acquired			2
Subsequent Event [Member] \| Tennessee [Member]
Subsequent Event [Line Items]
Number of self-storage facilities acquired or under contract to be acquired			2
Subsequent Event [Member] \| Indiana [Member]
Subsequent Event [Line Items]
Number of self-storage facilities acquired or under contract to be acquired			1
Subsequent Event [Member] \| Massachusetts [Member]
Subsequent Event [Line Items]
Number of self-storage facilities acquired or under contract to be acquired			1
Subsequent Event [Member] \| Nebraska [Member]
Subsequent Event [Line Items]
Number of self-storage facilities acquired or under contract to be acquired			1
Senior Notes [Member] \| Subsequent Event [Member]
Subsequent Event [Line Items]
Debt issuance amount		$ 551,600,000			€ 500,000,000
Interest rate		0.875%			0.875%
Maturity date		Jan. 24, 2032
Debt issuance costs \| $		$ 6,400,000