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Investments in Unconsolidated Real Estate Entities - Schedule of Equity in Earnings of Unconsolidated Real Estate Ventures (Details) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Jul. 20, 2023 store | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity in earnings and dividend income from unconsolidated real estate entities |  | $ 67,272 | $ 54,835 | $ 41,428
Life Storage, Inc |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Interest purchased, number of unconsolidated joint ventures | store | 16 |  |  |
Equity in earnings of PRISA Self Storage LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity in earnings and dividend income from unconsolidated real estate entities |  | 3,212 | 3,320 | 3,272
Equity in earnings of HF1 Sovran HHF Storage Holdings LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity in earnings and dividend income from unconsolidated real estate entities |  | 4,977 | 1,553 | 0
Equity in earnings of Storage Portfolio II JV LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity in earnings and dividend income from unconsolidated real estate entities |  | 2,661 | 3,094 | 3,398
Equity in earnings of Storage Portfolio IV JV LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity in earnings and dividend income from unconsolidated real estate entities |  | 1,440 | 1,319 | 917
Equity in earnings of Storage Portfolio I LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity in earnings and dividend income from unconsolidated real estate entities |  | 4,822 | 5,182 | 4,684
Equity in earnings of PR II EXR JV LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity in earnings and dividend income from unconsolidated real estate entities |  | 2,351 | 2,227 | 1,229
Equity in earnings of HF2 Sovran HHF Storage Holdings II LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity in earnings and dividend income from unconsolidated real estate entities |  | 2,466 | 691 | 0
Equity in earnings of HF5 Life Storage-HIERS Storage LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity in earnings and dividend income from unconsolidated real estate entities |  | 761 | 377 | 0
Equity in earnings of HF6 191 V Life Storage Holdings LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity in earnings and dividend income from unconsolidated real estate entities |  | (891) | (735) | 0
Equity in earnings of ESS-CA TIVS JV LP |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity in earnings and dividend income from unconsolidated real estate entities |  | 3,574 | 3,873 | 2,753
Equity in earnings of VRS Self Storage, LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity in earnings and dividend income from unconsolidated real estate entities |  | 5,186 | 5,253 | 5,401
Equity in earnings of HF10 Life Storage HHF Wasatch Holdings LLC |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity in earnings and dividend income from unconsolidated real estate entities |  | 598 | 40 | 0
Equity in earnings of other minority owned stores |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity in earnings and dividend income from unconsolidated real estate entities |  | 10,847 | 7,740 | 7,265
Dividend income from SmartStop preferred stock |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity in earnings and dividend income from unconsolidated real estate entities |  | 12,755 | 12,500 | 12,509
Dividend income from Strategic Storage preferred stock |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |
Equity in earnings and dividend income from unconsolidated real estate entities |  | $ 12,513 | $ 8,401 | $ 0

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