Summary of Significant Accounting Policies - Schedule of Incentive Compensation Awards Issued to Simply Self Storage and HPA Employees (Details) $ in Thousands	6 Months Ended
Jun. 30, 2025 USD ($)
Incentive Compensation Awards [Roll Forward]
Unrecognized Compensation Cost, beginning balance	$ 62,724
Value of Awards Issued	76,371
Forfeiture of Unvested Awards	0
Amortization of Compensation Cost	(31,266)
Unrecognized Compensation Cost, ending balance	107,829
Simply Self Storage and Home Partners of America
Incentive Compensation Awards [Roll Forward]
Unrecognized Compensation Cost, beginning balance	20,869
Value of Awards Issued	16,736
Forfeiture of Unvested Awards	(4,848)
Amortization of Compensation Cost	(8,676)
Unrecognized Compensation Cost, ending balance	24,081
2022
Incentive Compensation Awards [Roll Forward]
Unrecognized Compensation Cost, beginning balance	7,786
Value of Awards Issued	0
Forfeiture of Unvested Awards	0
Amortization of Compensation Cost	(3,893)
Unrecognized Compensation Cost, ending balance	$ 3,893
Remaining Amortization Period	6 months
2022 \| Simply Self Storage and Home Partners of America
Incentive Compensation Awards [Roll Forward]
Unrecognized Compensation Cost, beginning balance	$ 3,107
Value of Awards Issued	0
Forfeiture of Unvested Awards	(1,250)
Amortization of Compensation Cost	(1,578)
Unrecognized Compensation Cost, ending balance	$ 279
Remaining Amortization Period	6 months
2023
Incentive Compensation Awards [Roll Forward]
Unrecognized Compensation Cost, beginning balance	$ 14,673
Value of Awards Issued	0
Forfeiture of Unvested Awards	0
Amortization of Compensation Cost	(4,585)
Unrecognized Compensation Cost, ending balance	$ 10,088
Remaining Amortization Period	1 year 3 months 18 days
2023 \| Simply Self Storage and Home Partners of America
Incentive Compensation Awards [Roll Forward]
Unrecognized Compensation Cost, beginning balance	$ 6,070
Value of Awards Issued	0
Forfeiture of Unvested Awards	(79)
Amortization of Compensation Cost	(3,285)
Unrecognized Compensation Cost, ending balance	$ 2,706
Remaining Amortization Period	1 year 3 months 18 days
2024
Incentive Compensation Awards [Roll Forward]
Unrecognized Compensation Cost, beginning balance	$ 40,265
Value of Awards Issued	0
Forfeiture of Unvested Awards	0
Amortization of Compensation Cost	(10,060)
Unrecognized Compensation Cost, ending balance	$ 30,205
Remaining Amortization Period	2 years
2024 \| Simply Self Storage and Home Partners of America
Incentive Compensation Awards [Roll Forward]
Unrecognized Compensation Cost, beginning balance	$ 11,692
Value of Awards Issued	0
Forfeiture of Unvested Awards	(3,072)
Amortization of Compensation Cost	(1,121)
Unrecognized Compensation Cost, ending balance	$ 7,499
Remaining Amortization Period	2 years
2025
Incentive Compensation Awards [Roll Forward]
Unrecognized Compensation Cost, beginning balance	$ 0
Value of Awards Issued	76,371
Forfeiture of Unvested Awards	0
Amortization of Compensation Cost	(12,728)
Unrecognized Compensation Cost, ending balance	$ 63,643
Remaining Amortization Period	2 years 9 months 18 days
2025 \| Simply Self Storage and Home Partners of America
Incentive Compensation Awards [Roll Forward]
Unrecognized Compensation Cost, beginning balance	$ 0
Value of Awards Issued	16,736
Forfeiture of Unvested Awards	(447)
Amortization of Compensation Cost	(2,692)
Unrecognized Compensation Cost, ending balance	$ 13,597
Remaining Amortization Period	2 years 9 months 18 days

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Amount of cost capitalized for award under share-based payment arrangement.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

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Value of forfeited shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP).

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