Investments in and Advances to Unconsolidated Affiliates - Schedule of Investments (Parenthetical) (Details) - USD ($) $ in Thousands, shares in Millions		3 Months Ended
		Mar. 31, 2023		Jan. 31, 2023	Dec. 31, 2022		Aug. 31, 2022	Mar. 31, 2022	[1]
Schedule of Equity Method Investments [Line Items]
CECL allowance		$ 834			$ 898		$ 500
Cost method investments effective ownership interest					1.00%
Unconsolidated VIE assets		4,194,210	[1],[2]		$ 4,302,582	[2]		$ 4,496,181
Total liabilities	[2]	2,000,678			2,053,722
Variable Interest Entity, Not Primary Beneficiary
Schedule of Equity Method Investments [Line Items]
Construction Commitment		3,200
Unconsolidated VIE assets		43,000			41,500
Total liabilities		$ 50,400			49,200
1238 Wisconsin Avenue
Schedule of Equity Method Investments [Line Items]
Debt Instrument, Description of Variable Rate Basis		The loan is collateralized by the venture members' equity interest in the entity that holds the 1238 Wisconsin development property, bears interest at Prime + 1.0% subject to a 4.5% floor, and matures on December 28, 2023.
1238 Wisconsin Avenue | Core Portfolio
Schedule of Equity Method Investments [Line Items]
Construction Commitment		$ 12,800			7,500
Note receivable from related party		9,600			7,500
CECL allowance		$ 100			$ 100
Mervyns II
Schedule of Equity Method Investments [Line Items]
Cost method investments effective ownership, shares				2.5	4.1
Shoppes at South Hills
Schedule of Equity Method Investments [Line Items]
Bridge Loan					$ 31,700

[1] Real estate at cost and total assets for the Funds segment include $670.8 million and $657.9 million, or $275.1 million and $191.1 million net of noncontrolling interests, related to Fund II’s City Point property at March 31, 2023 and 2022, respectively.

[2] 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 consolidated balance sheets include the following amounts related to our consolidated VIEs that are consolidated by the Operating Partnership: $1,532.5 million and $1,466.4 million of Operating real estate, net; $61.8 million and $129.9 million of Real estate under development; $109.1 million and $210.9 million of Investments in and advances to unconsolidated affiliates; $87.6 million and $98.7 million of Other assets, net; $2.4 million and $2.5 million of Right-of-use assets - operating leases, net; $13.7 million and $13.3 million of Cash and cash equivalents; $14.2 million and $15.0 million of Restricted cash; $16.6 million and $17.9 million of Rents receivable, net; $759.9 million and $761.2 million of Mortgage and other notes payable, net; $1.8 million and $51.2 million of Unsecured notes payable, net; $98.7 million and $95.4 million of Accounts payable and other liabilities; $2.5 million and $2.7 million of Lease liability- operating leases, net as of March 31, 2023 and December 31, 2022, respectively.