Segment Reporting - Summary of Segment Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024		Dec. 31, 2023		Dec. 31, 2022
Segment Reporting Information [Line Items]
Revenues	$ 359,689		$ 338,692		$ 326,290
Depreciation and amortization	(138,910)		(135,984)		(135,917)
Property operating expenses	(66,000)		(61,826)		(56,995)
Real estate taxes	(46,049)		(46,650)		(44,932)
General and administrative expenses	(40,559)		(41,470)		(44,066)
Impairment charges	(1,678)		(3,686)		(33,311)
(Loss) gain on disposition of properties	(834)		0		57,161
Operating Income	65,659		49,076		68,230
Interest income	25,085		19,993		14,641
Equity in earnings (losses) of unconsolidated affiliates inclusive of gains on disposition of properties	15,178		(7,677)		(32,907)
Interest expense	(92,557)		(93,253)		(80,209)
Realized and unrealized holding gains (losses) on investments and other	(5,014)		30,413		(34,994)
Income tax provision	(212)		(301)		(12)
Net income (loss)	8,139		(1,749)		(65,251)
Net loss attributable to redeemable noncontrolling interests	7,915		8,239		5,536
Net loss attributable to noncontrolling interests	5,596		13,383		24,270
Net income (loss) attributable to Acadia shareholders	21,650		19,873		(35,445)
Real estate at cost	4,599,615	[1]	4,435,519	[1]	4,253,010
Total assets	4,371,203	[1],[2]	4,291,154	[1],[2]	4,302,582
Cash paid for acquisition of real estate	161,533		126,545		242,633
Cash paid for acquisition of real estate and leasehold interest					242,633
Cash paid for development and property improvement costs	80,250		69,540		51,046
Rental Income
Segment Reporting Information [Line Items]
Revenues	349,530		333,044		317,814
Other
Segment Reporting Information [Line Items]
Revenues	10,159		5,648		8,476
Operating Segments | Core Portfolio
Segment Reporting Information [Line Items]
Depreciation and amortization	(73,460)		(76,642)		(75,614)
Property operating expenses	(32,439)		(32,471)		(30,067)
Real estate taxes	(29,648)		(31,911)		(30,239)
General and administrative expenses	0		0		0
Impairment charges	(508)		0		0
(Loss) gain on disposition of properties	(2,213)		0		7,245
Operating Income	62,142		62,521		73,872
Interest income	0		0		0
Equity in earnings (losses) of unconsolidated affiliates inclusive of gains on disposition of properties	4,771		2,734		(45,919)
Interest expense	(36,898)		(44,521)		(37,892)
Realized and unrealized holding gains (losses) on investments and other	(4,064)		5,756		1,163
Income tax provision	0		0		0
Net income (loss)	25,951		26,490		(8,776)
Net loss attributable to redeemable noncontrolling interests	0		0		0
Net loss attributable to noncontrolling interests	(1,629)		(1,937)		1,000
Net income (loss) attributable to Acadia shareholders	24,322		24,553		(7,776)
Real estate at cost	2,783,801	[1]	2,646,831	[1]	2,597,394
Total assets	2,675,808	[1]	2,566,450	[1]	2,599,268
Cash paid for acquisition of real estate	131,978		0
Cash paid for acquisition of real estate and leasehold interest					242,633
Cash paid for development and property improvement costs	50,676		44,428		32,406
Operating Segments | Core Portfolio | Rental Income
Segment Reporting Information [Line Items]
Revenues	193,581		200,842		195,960
Operating Segments | Core Portfolio | Other
Segment Reporting Information [Line Items]
Revenues	6,829		2,703		6,587
Operating Segments | Investment Management
Segment Reporting Information [Line Items]
Depreciation and amortization	(65,450)		(59,342)		(60,303)
Property operating expenses	(33,561)		(29,355)		(26,928)
Real estate taxes	(16,401)		(14,739)		(14,693)
General and administrative expenses	0		0		0
Impairment charges	(1,170)		(3,686)		(33,311)
(Loss) gain on disposition of properties	1,379		0		49,916
Operating Income	44,076		28,025		38,424
Interest income	0		0		0
Equity in earnings (losses) of unconsolidated affiliates inclusive of gains on disposition of properties	10,407		(10,411)		13,012
Interest expense	(55,659)		(48,732)		(42,317)
Realized and unrealized holding gains (losses) on investments and other	0		24,995		(35,559)
Income tax provision	0		0		0
Net income (loss)	(1,176)		(6,123)		(26,440)
Net loss attributable to redeemable noncontrolling interests	7,915		8,239		5,536
Net loss attributable to noncontrolling interests	7,225		15,320		23,270
Net income (loss) attributable to Acadia shareholders	13,964		17,436		2,366
Real estate at cost	1,815,814	[1]	1,788,688	[1]	1,655,616
Total assets	1,568,811	[1]	1,599,755	[1]	1,579,411
Cash paid for acquisition of real estate	29,555		126,545
Cash paid for acquisition of real estate and leasehold interest					0
Cash paid for development and property improvement costs	29,574		25,112		18,640
Operating Segments | Investment Management | Rental Income
Segment Reporting Information [Line Items]
Revenues	155,949		132,202		121,854
Operating Segments | Investment Management | Other
Segment Reporting Information [Line Items]
Revenues	3,330		2,945		1,889
Operating Segments | Structured Financing
Segment Reporting Information [Line Items]
Depreciation and amortization	0		0		0
Property operating expenses	0		0		0
Real estate taxes	0		0		0
General and administrative expenses	0		0		0
Impairment charges	0		0		0
(Loss) gain on disposition of properties	0		0		0
Operating Income	0		0		0
Interest income	25,085		19,993		14,641
Equity in earnings (losses) of unconsolidated affiliates inclusive of gains on disposition of properties	0		0		0
Interest expense	0		0		0
Realized and unrealized holding gains (losses) on investments and other	(950)		(338)		(598)
Income tax provision	0		0		0
Net income (loss)	24,135		19,655		14,043
Net loss attributable to redeemable noncontrolling interests	0		0		0
Net loss attributable to noncontrolling interests	0		0		0
Net income (loss) attributable to Acadia shareholders	24,135		19,655		14,043
Real estate at cost	0	[1]	0	[1]	0
Total assets	126,584	[1]	124,949	[1]	123,903
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
Operating Segments | Structured Financing | Rental Income
Segment Reporting Information [Line Items]
Revenues	0		0		0
Operating Segments | Structured Financing | Other
Segment Reporting Information [Line Items]
Revenues	0		0		0
Unallocated
Segment Reporting Information [Line Items]
Depreciation and amortization	0		0		0
Property operating expenses	0		0		0
Real estate taxes	0		0		0
General and administrative expenses	(40,559)		(41,470)		(44,066)
Impairment charges	0		0		0
(Loss) gain on disposition of properties	0		0		0
Operating Income	(40,559)		(41,470)		(44,066)
Interest income	0		0		0
Equity in earnings (losses) of unconsolidated affiliates inclusive of gains on disposition of properties	0		0		0
Interest expense	0		0		0
Realized and unrealized holding gains (losses) on investments and other	0		0		0
Income tax provision	(212)		(301)		(12)
Net income (loss)	(40,771)		(41,771)		(44,078)
Net loss attributable to redeemable noncontrolling interests	0		0		0
Net loss attributable to noncontrolling interests	0		0		0
Net income (loss) attributable to Acadia shareholders	(40,771)		(41,771)		(44,078)
Real estate at cost	0	[1]	0	[1]	0
Total assets	0	[1]	0	[1]	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
Unallocated | Rental Income
Segment Reporting Information [Line Items]
Revenues	0		0		0
Unallocated | Other
Segment Reporting Information [Line Items]
Revenues	$ 0		$ 0		$ 0

[1] Total assets for the Investment Management segment include $515.2 million, $555.8 million, and $569.1 million related to Fund II’s City Point property at December 31, 2024, 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 16). The Consolidated Balance Sheets include the following amounts related to our consolidated VIEs that are consolidated by the Operating Partnership: $1,640.1 million and $1,679.8 million of Operating real estate, net; $31.5 million and $28.9 million of Real estate under development; $74.4 million and $92.8 million of Investments in and advances to unconsolidated affiliates; $79.4 million and $101.7 million of Other assets, net; $2.0 million and $2.1 million of Right-of-use assets - operating leases, net; $15.9 million and $10.8 million of Cash and cash equivalents; $11.0 million and $7.0 million of Restricted cash; $27.3 million and $21.4 million of Rents receivable, net; $799.7 million and $764.6 million of property mortgage loans and other notes payable, net; $0.0 million and $80.5 million of Unsecured notes payable, net; $120.1 million and $127.2 million of Accounts payable and other liabilities; $2.1 million and $2.2 million of Lease liability- operating leases as of December 31, 2024 and 2023, respectively.