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Related Party Transactions - Summary of Fees and Revenue Related to the Managed REITs (Detail) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues | $ 2,517,853 |  | $ 2,055,224 |  | $ 9,115,093 |  | $ 5,877,454 |  | $ 7,819,216 | $ 6,322,970 | $ 8,048,630
Asset Management |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues | 1,357,771 |  | 451,220 |  | 3,067,693 |  | 1,724,155 |  | 2,292,331 | 2,738,329 | 4,422,190
Property Management |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues | 641,520 |  | 330,765 |  | 1,633,504 |  | 1,019,612 |  | 1,021,625 | 1,155,314 | 1,801,383
Tenant Protection Program |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues | 397,355 |  | 199,125 |  | 883,071 |  | 635,439 |  | 655,033 | 1,081,292 | 1,150,917
Acquisition Fees |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues |  |  | 975,755 |  | 3,107,017 |  | 2,037,280 |  | 2,692,168 | 649,623 |
Strategic Storage Trust IV Advisory Agreement | Asset Management |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues |  |  |  |  |  |  |  |  |  | 716,278 | 3,211,661
Strategic Storage Growth Trust II Advisory Agreement | Asset Management |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues |  |  |  |  |  |  | 798,395 | [1] | 798,395 | 1,843,769 | 1,210,529
Strategic Storage Trust VI Advisory Agreement | Asset Management |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues | 1,062,242 |  | 401,078 |  | 2,378,167 |  | 875,618 |  | 1,348,314 | 178,282 |
SSGT III Advisory Agreement | Asset Management |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues | 295,529 |  | 50,142 |  | 689,526 |  | 50,142 |  | 145,622 |  |
Strategic Storage Trust IV Property Management Agreement | Property Management |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues |  |  |  |  |  |  |  |  |  | 346,179 | 1,429,632
Strategic Storage Growth Trust II Property Management Agreement | Property Management |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues |  |  |  |  |  |  | 407,706 | [1] | 407,706 | 709,533 | 371,751
Strategic Storage Trust VI Property Management Agreement | Property Management |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues | 346,259 |  | 157,282 |  | 857,452 |  | 359,989 |  | 551,493 | 99,602 |
Strategic Storage Growth Trust I I I Property Management Agreement | Property Management |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues | 105,209 |  | 17,952 |  | 235,704 |  | 17,952 |  | 62,426 |  |
Strategic Storage Trust IV Tenant Program Revenue | Tenant Protection Program |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues |  |  |  |  |  |  |  |  |  | 285,959 | 893,315
Strategic Storage Growth Trust II Tenant Program Revenue | Tenant Protection Program |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues |  |  |  |  |  |  | 250,156 | [1] | 250,156 | 636,671 | 257,602
Strategic Storage Trust VI Tenant Program Revenue | Tenant Protection Program |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues | 262,507 |  | 121,807 |  | 575,060 |  | 267,560 |  | 396,758 | 158,662 |
Strategic Storage Growth Trust I I I Tenant Protection Program Revenue | Tenant Protection Program |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues | 62,725 |  | 3,622 |  | 112,379 |  | 3,622 |  | 8,119 |  |
Strategic Storage Trust VI Acquisition Fees Revenue | Acquisition Fees |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues |  |  | 519,755 |  | 2,465,017 |  | 1,581,280 |  | 1,846,168 | 649,623 |
Strategic Storage Growth Trust III Acquisition Fees Revenue | Acquisition Fees |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues |  |  | 456,000 |  | 642,000 |  | 456,000 |  | 846,000 |  |
Other Managed REIT Revenue |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues | 121,207 | [2] | 98,359 | [2] | 423,808 | [2] | 460,968 | [2] | $ 1,158,059 | $ 698,412 | $ 674,140
JV Properties Property Management Agreement | Property Management |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues | 190,052 |  | 155,531 |  | 540,348 |  | 233,965 |  |  |  |
JV Properties Tenant Protection Program Revenue | Tenant Protection Program |  |  |  |  |  |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |  |  |  |  |  |
Managed REIT Platform Revenues | $ 72,123 |  | $ 73,696 |  | $ 195,632 |  | $ 114,101 |  |  |  |
[1] | On June 1, 2022, we acquired SSGT II and no longer earn such fees. Additionally, the Tenant Protection Program revenue for SSGT II is now included in ancillary operating revenue in our consolidated statements of operations.
[2] | Such revenue primarily includes other property management related fees, construction management fees, development fees, and other miscellaneous revenues.

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