Segment Reporting - Summary of Segment Information (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2023		Dec. 31, 2022		Dec. 31, 2021
Segment Reporting Information [Line Items]
Total revenues		$ 338,692		$ 326,290		$ 292,497
Depreciation and amortization expenses		(135,984)		(135,917)		(123,439)
Property operating expenses, other operating and real estate taxes		(108,476)		(101,927)		(98,873)
General and administrative expenses		(41,470)		(44,066)		(40,125)
Impairment charges		(3,686)		(33,311)		(9,925)
Gain on disposition of properties		0		57,161		10,521
Operating income		49,076		68,230		30,656
Interest income		19,993		14,641		9,065
Equity in earnings (losses) of unconsolidated affiliates		(7,677)		(32,907)		5,330
Interest expense		(93,253)		(80,209)		(68,048)
Realized and unrealized holding gains (losses) on investments and other		30,413		(34,994)		49,120
Income tax provision		(301)		(12)		(93)
Net (loss) income		(1,749)		(65,251)		26,030
Net loss attributable to redeemable noncontrolling interests		8,239		5,536
Net loss (income) attributable to noncontrolling interests		13,383		24,270		(2,482)
Net income (loss) attributable to Acadia shareholders		19,873		(35,445)		23,548
Real estate at cost	[1]	4,435,519		4,253,010		4,071,607
Total Assets	[1]	4,291,154	[2]	4,302,582	[2]	4,261,746
Cash paid for acquisition of real estate		126,545		242,633		161,846
Cash paid for acquisition of real estate and leasehold interest						161,846
Cash paid for development and property improvement costs		69,540		51,046		40,671
Operating Segments | Core Portfolio
Segment Reporting Information [Line Items]
Total revenues		203,545		202,547		181,332
Depreciation and amortization expenses		(76,642)		(75,614)		(69,103)
Property operating expenses, other operating and real estate taxes		(64,382)		(60,306)		(56,957)
General and administrative expenses		0		0		0
Impairment charges		0		0		0
Gain on disposition of properties				7,245		4,612
Operating income		62,521		73,872		59,884
Interest income		0		0		0
Equity in earnings (losses) of unconsolidated affiliates		2,734		(45,919)		353
Interest expense		(44,521)		(37,892)		(29,454)
Realized and unrealized holding gains (losses) on investments and other		5,756		1,163		0
Income tax provision		0		0		0
Net (loss) income		26,490		(8,776)		30,783
Net loss attributable to redeemable noncontrolling interests		0		0
Net loss (income) attributable to noncontrolling interests		(1,937)		1,000		(2,276)
Net income (loss) attributable to Acadia shareholders		24,553		(7,776)		28,507
Real estate at cost	[1]	2,646,831		2,597,394		2,356,645
Total Assets	[1]	2,566,450		2,599,268		2,212,877
Cash paid for acquisition of real estate		0		242,633
Cash paid for acquisition of real estate and leasehold interest						26,176
Cash paid for development and property improvement costs		44,428		32,406		13,625
Operating Segments | Opportunity Funds
Segment Reporting Information [Line Items]
Total revenues		135,147		123,743		111,165
Depreciation and amortization expenses		(59,342)		(60,303)		(54,336)
Property operating expenses, other operating and real estate taxes		(44,094)		(41,621)		(41,916)
General and administrative expenses		0		0		0
Impairment charges		(3,686)		(33,311)		(9,925)
Gain on disposition of properties				49,916		5,909
Operating income		28,025		38,424		10,897
Interest income		0		0		0
Equity in earnings (losses) of unconsolidated affiliates		(10,411)		13,012		4,977
Interest expense		(48,732)		(42,317)		(38,594)
Realized and unrealized holding gains (losses) on investments and other		24,995		(35,559)		53,654
Income tax provision		0		0		0
Net (loss) income		(6,123)		(26,440)		30,934
Net loss attributable to redeemable noncontrolling interests		8,239		5,536
Net loss (income) attributable to noncontrolling interests		15,320		23,270		(206)
Net income (loss) attributable to Acadia shareholders		17,436		2,366		30,728
Real estate at cost	[1]	1,788,688		1,655,616		1,714,962
Total Assets	[1]	1,599,755		1,579,411		1,894,983
Cash paid for acquisition of real estate		126,545		0
Cash paid for acquisition of real estate and leasehold interest						135,670
Cash paid for development and property improvement costs		25,112		18,640		27,046
Operating Segments | Structured Financing
Segment Reporting Information [Line Items]
Total revenues		0		0		0
Depreciation and amortization expenses		0		0		0
Property operating expenses, other operating and real estate taxes		0		0		0
General and administrative expenses		0		0		0
Impairment charges		0		0		0
Gain on disposition of properties				0		0
Operating income		0		0		0
Interest income		19,993		14,641		9,065
Equity in earnings (losses) of unconsolidated affiliates		0		0		0
Interest expense		0		0		0
Realized and unrealized holding gains (losses) on investments and other		(338)		(598)		(4,534)
Income tax provision		0		0		0
Net (loss) income		19,655		14,043		4,531
Net loss attributable to redeemable noncontrolling interests		0		0
Net loss (income) attributable to noncontrolling interests		0		0		0
Net income (loss) attributable to Acadia shareholders		19,655		14,043		4,531
Real estate at cost	[1]	0		0		0
Total Assets	[1]	124,949		123,903		153,886
Cash paid for acquisition of real estate		0		0
Cash paid for acquisition of real estate and leasehold interest						0
Cash paid for development and property improvement costs		0		0		0
Unallocated
Segment Reporting Information [Line Items]
Total revenues		0		0		0
Depreciation and amortization expenses		0		0		0
Property operating expenses, other operating and real estate taxes		0		0		0
General and administrative expenses		(41,470)		(44,066)		(40,125)
Impairment charges		0		0		0
Gain on disposition of properties				0		0
Operating income		(41,470)		(44,066)		(40,125)
Interest income		0		0		0
Equity in earnings (losses) of unconsolidated affiliates		0		0		0
Interest expense		0		0		0
Realized and unrealized holding gains (losses) on investments and other		0		0		0
Income tax provision		(301)		(12)		(93)
Net (loss) income		(41,771)		(44,078)		(40,218)
Net loss attributable to redeemable noncontrolling interests		0		0
Net loss (income) attributable to noncontrolling interests		0		0		0
Net income (loss) attributable to Acadia shareholders		(41,771)		(44,078)		(40,218)
Real estate at cost	[1]	0		0		0
Total Assets	[1]	0		0		0
Cash paid for acquisition of real estate		0		0
Cash paid for acquisition of real estate and leasehold interest						0
Cash paid for development and property improvement costs		$ 0		$ 0		$ 0

[1] Total assets for the Funds segment include $555.8 million, $569.1 million, and $583.4 million related to Fund II’s City Point property at December 31, 2023, 2022,and 2021, 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 16). The Consolidated Balance Sheets include the following amounts related to our consolidated VIEs that are consolidated by the Operating Partnership: $1,679.8 million and $1,466.4 million of Operating real estate, net; $28.9 million and $129.9 million of Real estate under development; $92.8 million and $210.9 million of Investments in and advances to unconsolidated affiliates; $101.7 million and $98.7 million of Other assets, net; $2.1 million and $2.5 million of Right-of-use assets - operating leases, net; $10.8 million and $13.3 million of Cash and cash equivalents; $7.0 million and $15.0 million of Restricted cash; $21.4 million and $17.9 million of Rents receivable, net; $764.6 million and $761.2 million of Mortgage and other notes payable, net; $80.5 million and $51.2 million of Unsecured notes payable, net; $127.2 million and $95.4 million of Accounts payable and other liabilities; $2.2 million and $2.7 million of Lease liability- operating leases as of December 31, 2023 and 2022, respectively.