Variable Interest Entities - Schedule of Assets and Liabilities Included in Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Thousands		Jun. 30, 2024		Dec. 31, 2023		Jun. 30, 2023		Dec. 31, 2022
ASSETS
Operating real estate, net		$ 3,446,912		$ 3,517,281
Real estate under development		101,802		94,799
Investments in and advances to unconsolidated affiliates		203,410		197,240
Other assets, net		213,779		208,460
Right-of-use assets - operating leases, net		27,748		29,286
Cash and cash equivalents		31,915		17,481		$ 17,193		$ 17,158
Restricted cash		23,139		7,813		12,325		$ 15,063
Rents receivable, net		54,012		49,504
Total assets		4,251,038	[1],[2]	4,291,154	[1]	$ 4,204,159	[2]
Liabilities:
Mortgage and other notes payable, net		955,069		930,127
Unsecured notes payable, net		644,313		726,727
Accounts payable and other liabilities		218,095		229,375
Lease liability - operating leases		29,964		31,580
Total liabilities	[1]	1,971,473		2,157,598
VIE
ASSETS
Operating real estate, net		1,654,533		1,679,779
Real estate under development		29,964		28,851
Investments in and advances to unconsolidated affiliates		91,070		92,802
Other assets, net		90,280		101,679
Right-of-use assets - operating leases, net		2,214		2,112
Cash and cash equivalents		20,719		10,787
Restricted cash		10,768		7,048
Rents receivable, net		23,922		21,427
Total assets	[3]	1,923,470		1,944,485
Liabilities:
Mortgage and other notes payable, net		800,269		764,614
Unsecured notes payable, net		0		80,473
Accounts payable and other liabilities		128,053		127,162
Lease liability - operating leases		2,304		2,213
Total liabilities	[3]	$ 930,626		$ 974,462

[1] Represents the consolidated assets and liabilities of Acadia Realty Limited Partnership (the "Operating Partnership"), which is a consolidated variable interest entity ("VIE") (Note 15). The Condensed Consolidated Balance Sheets include the following amounts related to our consolidated VIEs that are consolidated by the Operating Partnership: $1,654.5 million and $1,679.8 million of Operating real estate, net; $30.0 million and $28.9 million of Real estate under development; $91.1 million and $92.8 million of Investments in and advances to unconsolidated affiliates; $90.3 million and $101.7 million of Other assets, net; $2.2 million and $2.1 million of Right-of-use assets - operating leases, net; $20.7 million and $10.8 million of Cash and cash equivalents; $10.8 million and $7.0 million of Restricted cash; $23.9 million and $21.4 million of Rents receivable, net; $800.3 million and $764.6 million of Mortgage and other notes payable, net; $0.0 million and $80.5 million of Unsecured notes payable, net; $128.1 million and $127.2 million of Accounts payable and other liabilities; $2.3 million and $2.2 million of Lease liability- operating leases, net as of June 30, 2024 and December 31, 2023, respectively.

[2] Total assets for the Investment Management segment include $549.3 million and $672.7 million related to Fund II’s City Point property as of June 30, 2024 and 2023, respectively.

[3] As of June 30, 2024 and December 31, 2023, includes total VIE assets of $712.5 million and $721.2 million, respectively, and total VIE liabilities of $236.9 million and $234.7 million, respectively, related to third-party mortgages that are collateralized by the real estate assets of City Point, a Fund II property, and 27 East 61st Street, 801 Madison Avenue, and 1035 Third Avenue, all Fund IV properties, of which $72.5 million is guaranteed by the Operating Partnership (Note 9). The remaining VIE assets are generally encumbered by third-party non-recourse mortgage debt and are collateral under the respective mortgages and are therefore restricted and can only be used to settle the corresponding liabilities of the VIE. The remaining VIE assets may only be used to settle obligations of these consolidated VIEs and the remaining VIE liabilities are only the obligations of these consolidated VIEs and they do not have recourse to the Operating Partnership or the Company.