v3.26.3
Segment Reporting - Summary of Segment Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
 [2]
Segment Reporting Information [Line Items]          
Depreciation and amortization expenses $ (35,572) $ (38,884) $ (110,889) $ (117,593)  
Property operating expenses (16,605) (16,627) (51,893) (52,431)  
Real estate taxes (9,771) (11,832) (35,428) (38,452)  
General and administrative expenses (11,912) (10,924) (38,997) (34,053)  
Impairment charges (11,660) (12,570) (11,660) (37,210)  
Gain (loss)on disposition of properties 761 2,515 146,878 2,515  
Operating income 10,224 12,684 191,409 28,768  
Interest income 4,546 6,121 15,891 18,575  
Equity in (losses) earnings of unconsolidated affiliates (467) (3,694) 11,954 (9,598)  
Interest expense (19,927) (24,304) (62,122) (71,155)  
Loss on change in control 0 0 0 (9,622)  
Realized and unrealized holding (losses) gains on investments and other   (1,760) (649) (193)  
Income tax benefit (provision) 1 (2) (165) (329)  
Net (loss) income (5,623) (10,955) 156,318 (43,554)  
Net loss attributable to redeemable noncontrolling interests 25 1,567 1,704 4,960  
Net (income) loss attributable to noncontrolling interests 2,004 15,006 (120,101) 47,783  
Net (loss) income attributable to Acadia shareholders (3,594) 5,618 37,921 9,189  
Real estate at cost [1] 5,037,947 5,126,252 5,037,947 5,126,252  
Total assets 4,829,735 [1],[2] 4,875,192 [1] 4,829,735 [1],[2] 4,875,192 [1] $ 4,837,152
Cash paid for acquisition of real estate     341,161 406,907  
Cash paid for development and property improvement costs     80,212 86,638  
Rental Income          
Segment Reporting Information [Line Items]          
Revenues 90,395 98,714 280,151 299,651  
Other          
Segment Reporting Information [Line Items]          
Revenues 4,588 2,292 13,247 6,341  
Operating Segments | REIT Portfolio          
Segment Reporting Information [Line Items]          
Depreciation and amortization expenses (24,673) (22,663) (73,017) (68,792)  
Property operating expenses (9,860) (7,732) (30,115) (25,924)  
Real estate taxes (7,196) (7,469) (26,568) (25,207)  
General and administrative expenses 0 0 0 0  
Impairment charges (11,660) 0 (11,660) 0  
Gain (loss)on disposition of properties 192 2,756 (224) 2,756  
Operating income 13,316 22,930 55,116 63,631  
Interest income 0 0 0 0  
Equity in (losses) earnings of unconsolidated affiliates 1,028 (135) 998 (344)  
Interest expense (13,030) (10,753) (37,323) (29,687)  
Loss on change in control       (9,622)  
Realized and unrealized holding (losses) gains on investments and other   (2,205) (649) (831)  
Income tax benefit (provision) 0 0 0 0  
Net (loss) income 1,314 9,837 18,142 23,147  
Net loss attributable to redeemable noncontrolling interests 0 0 0 0  
Net (income) loss attributable to noncontrolling interests 170 (151) (1,501) 194  
Net (loss) income attributable to Acadia shareholders 1,484 9,686 16,641 23,341  
Real estate at cost [1] 3,727,461 3,298,167 3,727,461 3,298,167  
Total assets [1] 3,519,731 3,157,469 3,519,731 3,157,469  
Cash paid for acquisition of real estate     341,161 276,852  
Cash paid for development and property improvement costs     71,406 72,019  
Operating Segments | REIT Portfolio | Rental Income          
Segment Reporting Information [Line Items]          
Revenues 65,232 57,162 193,790 178,635  
Operating Segments | REIT Portfolio | Other          
Segment Reporting Information [Line Items]          
Revenues 1,281 876 2,910 2,163  
Operating Segments | Investment Management          
Segment Reporting Information [Line Items]          
Depreciation and amortization expenses (10,899) (16,221) (37,872) (48,801)  
Property operating expenses (6,745) (8,895) (21,778) (26,507)  
Real estate taxes (2,575) (4,363) (8,860) (13,245)  
General and administrative expenses 0 0   0  
Impairment charges 0 (12,570)   (37,210)  
Gain (loss)on disposition of properties 569 (241) 147,102 (241)  
Operating income 8,820 678 175,290 (810)  
Interest income 0 0 0 0  
Equity in (losses) earnings of unconsolidated affiliates (1,495) (3,559) 10,956 (9,254)  
Interest expense (6,897) (13,551) (24,799) (41,468)  
Loss on change in control       0  
Realized and unrealized holding (losses) gains on investments and other   0 0 0  
Income tax benefit (provision) 0 0 0 0  
Net (loss) income 428 (16,432) 161,447 (51,532)  
Net loss attributable to redeemable noncontrolling interests 25 1,567 1,704 4,960  
Net (income) loss attributable to noncontrolling interests 1,834 15,157 (118,600) 47,589  
Net (loss) income attributable to Acadia shareholders 2,287 292 44,551 1,017  
Real estate at cost [1] 1,310,486 1,828,085 1,310,486 1,828,085  
Total assets [1] 1,101,469 1,562,958 1,101,469 1,562,958  
Cash paid for acquisition of real estate     0 130,055  
Cash paid for development and property improvement costs     8,806 14,619  
Operating Segments | Investment Management | Rental Income          
Segment Reporting Information [Line Items]          
Revenues 25,163 41,552 86,361 121,016  
Operating Segments | Investment Management | Other          
Segment Reporting Information [Line Items]          
Revenues 3,307 1,416 10,337 4,178  
Operating Segments | Structured Financing          
Segment Reporting Information [Line Items]          
Depreciation and amortization expenses 0 0 0 0  
Property operating expenses 0 0 0 0  
Real estate taxes 0 0 0 0  
General and administrative expenses 0 0 0 0  
Impairment charges 0 0 0 0  
Gain (loss)on disposition of properties 0 0 0 0  
Operating income 0 0 0 0  
Interest income 4,546 6,121 15,891 18,575  
Equity in (losses) earnings of unconsolidated affiliates 0 0 0 0  
Interest expense 0 0 0 0  
Loss on change in control       0  
Realized and unrealized holding (losses) gains on investments and other   445 0 638  
Income tax benefit (provision) 0 0 0 0  
Net (loss) income 4,546 6,566 15,891 19,213  
Net loss attributable to redeemable noncontrolling interests 0 0 0 0  
Net (income) loss attributable to noncontrolling interests 0 0 0 0  
Net (loss) income attributable to Acadia shareholders 4,546 6,566 15,891 19,213  
Real estate at cost [1] 0 0 0 0  
Total assets [1] 208,535 154,765 208,535 154,765  
Cash paid for acquisition of real estate     0 0  
Cash paid for development and property improvement costs     0 0  
Operating Segments | Structured Financing | Rental Income          
Segment Reporting Information [Line Items]          
Revenues 0 0 0 0  
Operating Segments | Structured Financing | Other          
Segment Reporting Information [Line Items]          
Revenues 0 0 0 0  
Unallocated          
Segment Reporting Information [Line Items]          
Depreciation and amortization expenses 0 0 0 0  
Property operating expenses 0 0 0 0  
Real estate taxes 0 0 0 0  
General and administrative expenses (11,912) (10,924) (38,997) (34,053)  
Impairment charges 0 0 0 0  
Gain (loss)on disposition of properties 0 0 0 0  
Operating income (11,912) (10,924) (38,997) (34,053)  
Interest income 0 0 0 0  
Equity in (losses) earnings of unconsolidated affiliates 0 0 0 0  
Interest expense 0 0 0 0  
Loss on change in control       0  
Realized and unrealized holding (losses) gains on investments and other   0 0 0  
Income tax benefit (provision) 1 (2) (165) (329)  
Net (loss) income (11,911) (10,926) (39,162) (34,382)  
Net loss attributable to redeemable noncontrolling interests 0 0 0 0  
Net (income) loss attributable to noncontrolling interests 0 0 0 0  
Net (loss) income attributable to Acadia shareholders (11,911) (10,926) (39,162) (34,382)  
Real estate at cost [1] 0 0 0 0  
Total assets [1] 0 0 0 0  
Cash paid for acquisition of real estate     0 0  
Cash paid for development and property improvement costs     0 0  
Unallocated | Rental Income          
Segment Reporting Information [Line Items]          
Revenues 0 0 0 0  
Unallocated | Other          
Segment Reporting Information [Line Items]          
Revenues $ 0 $ 0 $ 0 $ 0  
[1] Total assets for the Investment Management segment include $513.1 million and $529.5 million related to the City Point property as of September 30, 2026 and 2025, respectively.
[2] Includes consolidated assets and liabilities of Acadia Realty Limited Partnership (the “Operating Partnership”), including those of its consolidated variable interest entities (“VIEs”) (Note 15), consisting of: $1,013.3 million and $1,768.6 million of Operating real estate, net; $35.6 million and $53.3 million of Investments in and advances to unconsolidated affiliates; $40.5 million and $78.3 million of Other assets, net; $1.2 million and $1.5 million of Right-of-use assets - operating leases, net; $26.7 million and $30.4 million of Cash and cash equivalents; $6.0 million and $6.5 million of Restricted cash; $14.1 million and $29.3 million of Rents receivable, net; $380.6 million and $793.8 million of Mortgage and other notes payable, net; $45.3 million and $61.3 million of Unsecured notes payable, net; $81.2 million and $125.6 million of Accounts payable and other liabilities; $1.2 million and $1.6 million of Lease liabilities- operating leases, net, as of September 30, 2026 and December 31, 2025, respectively.