Subsequent Events	9 Months Ended
Sep. 30, 2021
Subsequent Events [Abstract]
Subsequent Events	Subsequent EventsSubsequent to September 30, 2021, we acquired or were under contract to acquire 107 self-storage facilities across 16 states with 11.8 million net rentable square feet, for $2.3 billion, including the issuance of partnership units of approximately $80.0 million. These include a portfolio of 56 properties (7.5 million net rentable square feet) currently operated under the brand name of All Storage that we are under contract to purchase for $1.5 billion in cash. The acquisition, which is subject to the satisfaction of customary closing conditions, is expected to close in two separate tranches, with seven self-storage facilities closing in November 2021 and 49 self-storage facilities closing in December 2021.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

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