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Financial Instruments and Fair Value Measurements - Schedule of Items Measured at Fair Value on Nonrecurring Basis (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2021
Derivatives, Fair Value [Line Items] |  |  |  |  |
Impairment charges | $ 33,311 | $ 9,925 | $ 33,311 | $ 9,925 |
Fair Value, Measurements, Nonrecurring |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Impairment charges |  |  | 33,311 |  | $ 9,925
Fair Value, Measurements, Nonrecurring | Acadia Realty Trust |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Impairment charges |  |  | $ 7,702 |  | $ 2,294
146 Geary Street, San Francisco, CA | Fair Value, Measurements, Nonrecurring | Fund IV | Level 3 Inputs Projections |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Triggering Event |  |  | Reduced projected operating income |  |
Impairment charges |  |  | $ 12,435 |  |
146 Geary Street, San Francisco, CA | Fair Value, Measurements, Nonrecurring | Fund IV | Acadia Realty Trust | Level 3 Inputs Projections |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Impairment charges |  |  | $ 2,875 |  |
717 N. Michigan Avenue, Chicago, IL | Fair Value, Measurements, Nonrecurring | Fund IV | Level 3 Inputs Projections |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Triggering Event |  |  | Reduced holding period and intended use |  |
Impairment charges |  |  | $ 20,876 |  |
717 N. Michigan Avenue, Chicago, IL | Fair Value, Measurements, Nonrecurring | Fund IV | Acadia Realty Trust | Level 3 Inputs Projections |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Impairment charges |  |  | $ 4,827 |  |
27 E. 61st Street Manhattan, NY | Fair Value, Measurements, Nonrecurring | Fund IV | Level 3 Inputs Projections |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Triggering Event |  |  |  |  | Reduced projected operating income
Impairment charges |  |  |  |  | $ 6,909
27 E. 61st Street Manhattan, NY | Fair Value, Measurements, Nonrecurring | Fund IV | Acadia Realty Trust | Level 3 Inputs Projections |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Impairment charges |  |  |  |  | $ 1,597
210 Bowery Residential Units | Fair Value, Measurements, Nonrecurring | Fund IV | Level 3 Inputs Projections |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Triggering Event |  |  |  |  | Reduced projected operating income
Impairment charges |  |  |  |  | $ 3,016
210 Bowery Residential Units | Fair Value, Measurements, Nonrecurring | Fund IV | Acadia Realty Trust | Level 3 Inputs Projections |  |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |  |
Impairment charges |  |  |  |  | $ 697

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