Variable Interest Entities - Schedule of Assets and Liabilities Included in Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Thousands		Jun. 30, 2025		Dec. 31, 2024		Jun. 30, 2024		Dec. 31, 2023
ASSETS
Operating real estate, net		$ 3,962,806		$ 3,543,974
Real estate under development		153,196		129,619
Investments in and advances to unconsolidated affiliates		172,418		209,232
Other assets, net		219,598		223,767
Right-of-use assets - operating leases, net		25,609		25,531
Cash and cash equivalents		42,780		16,806		$ 31,915		$ 17,481
Restricted cash		25,029		22,897		23,139		$ 7,813
Rents receivable, net		61,099		58,022
Total assets		4,875,569	[1],[2]	4,371,203	[1]	$ 4,251,038	[2]
Liabilities:
Mortgage and other notes payable, net		1,007,588		953,700
Accounts payable and other liabilities		270,985		232,726
Lease liabilities - operating leases		27,980	[3]	27,920
Total liabilities	[1]	2,148,236		1,838,931
VIE
ASSETS
Operating real estate, net		1,828,630		1,640,071
Real estate under development		33,168		31,514
Investments in and advances to unconsolidated affiliates		64,429		74,361
Other assets, net		88,623		79,381
Right-of-use assets - operating leases, net		1,752		1,978
Cash and cash equivalents		28,215		15,934
Restricted cash		13,784		11,013
Rents receivable, net		27,964		27,317
Total assets	[4]	2,086,565		1,881,569
Liabilities:
Mortgage and other notes payable, net		904,487		799,734
Accounts payable and other liabilities		130,004		120,088
Lease liabilities - operating leases		1,843		2,077
Total liabilities	[4]	$ 1,036,334		$ 921,899

[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: $1,828.6 million and $1,640.1 million of Operating real estate, net; $33.2 million and $31.5 million of Real estate under development; $64.4 million and $74.4 million of Investments in and advances to unconsolidated affiliates; $88.6 million and $79.4 million of Other assets, net; $1.8 million and $2.0 million of Right-of-use assets - operating leases, net; $28.2 million and $15.9 million of Cash and cash equivalents; $13.8 million and $11.0 million of Restricted cash; $28.0 million and $27.3 million of Rents receivable, net; $904.5 million and $799.7 million of Mortgage and other notes payable, net; $130.0 million and $120.1 million of Accounts payable and other liabilities; $1.8 million and $2.1 million of Lease liability- operating leases as of June 30, 2025 and December 31, 2024, respectively.

[2] Total assets for the Investment Management segment include $533.7 million and $549.3 million related to Fund II’s City Point property as of June 30, 2025 and 2024, respectively.

[3] Minimum rental payments include $7.0 million of interest related to operating leases and $129.7 million related to finance leases. These amounts exclude lease renewal options that not reasonably certain to be exercised.

[4] As of June 30, 2025 and December 31, 2024, total VIE assets of $670.4 million and $705.6 million, respectively, and total VIE liabilities of $235.8 million and $235.1 million, respectively, include third-party mortgage debt 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 serve as collateral under the respective property mortgage loans. These assets are restricted and may only be used to settle the corresponding obligations of the VIEs. Similarly, the remaining VIE liabilities are obligations of these consolidated VIEs and do not have recourse to the Operating Partnership or the Company.