v3.25.4
Related Party Transactions - Summary of Fees and Revenue Related to the Managed REITs (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Related Party Transaction [Line Items]      
Managed Platform Fees $ 20,218 $ 12,227 $ 11,940
Sponsor funding reduction [1] (1,052) (844) (34)
Total Managed Platform Revenues 19,166 11,383 11,906
Asset Management      
Related Party Transaction [Line Items]      
Managed Platform Fees 6,360 5,660 4,437
Property Management      
Related Party Transaction [Line Items]      
Managed Platform Fees 6,478 3,274 2,339
Tenant Protection Program      
Related Party Transaction [Line Items]      
Managed Platform Fees 3,798 2,003 1,299
Acquisition Fees      
Related Party Transaction [Line Items]      
Managed Platform Fees 2,646 327 3,307
Strategic Storage Trust X Advisory Agreement | Asset Management      
Related Party Transaction [Line Items]      
Managed Platform Fees 13 0 0
Strategic Storage Trust X Advisory Agreement | Property Management      
Related Party Transaction [Line Items]      
Managed Platform Fees 10 0 0
Strategic Storage Trust V I Advisory Agreement | Asset Management      
Related Party Transaction [Line Items]      
Managed Platform Fees 4,402 4,254 3,420
Strategic Storage Trust V I Advisory Agreement | Property Management      
Related Party Transaction [Line Items]      
Managed Platform Fees 1,965 1,698 1,243
Strategic Storage Trust V I Advisory Agreement | Tenant Protection Program      
Related Party Transaction [Line Items]      
Managed Platform Fees 1,401 1,205 842
Strategic Storage Trust V I Advisory Agreement | Acquisition Fees      
Related Party Transaction [Line Items]      
Managed Platform Fees 0 34 2,470
Strategic Storage Growth Trust I I I Advisory Agreement | Asset Management      
Related Party Transaction [Line Items]      
Managed Platform Fees 1,945 1,406 1,017
JV Properties Property Management Agreement | Property Management      
Related Party Transaction [Line Items]      
Managed Platform Fees 1,089 959 738
JV Properties Property Management Agreement | Tenant Protection Program      
Related Party Transaction [Line Items]      
Managed Platform Fees 420 371 271
Third Party Platform | Property Management      
Related Party Transaction [Line Items]      
Managed Platform Fees [2] 2,051 0 0
Third Party Platform | Tenant Protection Program      
Related Party Transaction [Line Items]      
Managed Platform Fees [2] 864 0 0
Strategic Storage Growth Trust I I I Property Management Agreement | Property Management      
Related Party Transaction [Line Items]      
Managed Platform Fees 1,363 617 358
Strategic Storage Growth Trust I I I Property Management Agreement | Tenant Protection Program      
Related Party Transaction [Line Items]      
Managed Platform Fees 1,113 427 186
Strategic Storage Growth Trust I I I Property Management Agreement | Acquisition Fees      
Related Party Transaction [Line Items]      
Managed Platform Fees 2,646 293 837
Other Managed REIT Revenue      
Related Party Transaction [Line Items]      
Managed Platform Fees [3] $ 936 $ 963 $ 558
[1] Pursuant to the Sponsor Funding Agreement, we funded certain costs of SST VI's share sales, and in return receives Series C Units in SST VI's OP. As of June 30, 2025, SST VI had closed its offering to new subscriptions. As such, we no longer had any funding obligation pursuant to the Sponsor Funding Agreement. The excess of the funding over the value of the Series C Units received was accounted for as a reduction of Managed Platform revenue from SST VI over the remaining estimated term of the management contracts with SST VI.
[2] Our Third Party Platform revenues are not derived from a related party; however, it is a part of our Managed Platform and we have included it above accordingly.
[3] Such revenue primarily includes other property management related fees, construction management fees, development fees, and other miscellaneous revenues.