Stockholders' Equity (Details) $ / shares in Units, $ in Thousands					7 Months Ended	12 Months Ended		29 Months Ended
	Jul. 20, 2023 USD ($) shares	Jan. 07, 2022 USD ($) store shares	Aug. 09, 2021 USD ($) sales_agent	Mar. 23, 2021 USD ($) $ / shares shares	Aug. 08, 2021 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) item $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares	Nov. 13, 2023 USD ($)	Jul. 19, 2023 $ / shares
Changes In Equity And Comprehensive Income [Line Items]
Common stock, authorized (in shares)						500,000,000	500,000,000	500,000,000
Common stock, par value (dollars per share) | $ / shares						$ 0.01	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)						50,000,000	50,000,000	50,000,000
Preferred stock, par value (dollars per share) | $ / shares						$ 0.01	$ 0.01	$ 0.01
Common stock, issued (in shares)						211,278,803	133,921,020	211,278,803
Common stock, outstanding (in shares)						211,278,803	133,921,020	211,278,803
Preferred stock, issued (in shares)						0	0	0
Preferred stock, outstanding (in shares)						0	0	0
Number of votes, common stockholder rights | item						1
Common stock sold (in shares)				1,600,000		0
Issuance of common stock in conjunction with acquisition (in shares)	76,217,359	186,766
Issuance of common stock in conjunction with acquisitions | $	$ 11,353,338	$ 40,965					$ 40,963
Shares issued, price (in dollars per share) | $ / shares										$ 148.96
Number of stores acquired with issuance of common stock | store		2
Number of sales agents | sales_agent			10
Average share price (in dollars per share) | $ / shares				$ 129.13
Net proceeds from sale of stock | $				$ 206,572
Share repurchase program, aggregate value | $									$ 500,000
Shares repurchased (in shares)						0
Share repurchase program, remaining authorization value | $						$ 500,000		$ 500,000
Life Storage, Inc
Changes In Equity And Comprehensive Income [Line Items]
Equity interest issued conversion ratio	0.895
“At the market” equity program
Changes In Equity And Comprehensive Income [Line Items]
Common stock sold (in shares)					585,685			0
Aggregate offering price | $			$ 800,000
Average share price (in dollars per share) | $ / shares					$ 115.90
Net proceeds from sale of stock | $					$ 66,617