Earnings Per Common Share - Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Numerator:
Net income attributable to Acadia	$ 13,360	$ 16,838
Less: earnings attributable to unvested participating securities	(243)	(204)
Income from continuing operations net of income attributable to participating securities for basic earnings per share	$ 13,117	$ 16,634
Denominator:
Weighted average shares for basic earnings per share	95,189,490	93,285,565
Effect of dilutive securities:
Series A Preferred OP Units	0	25,067
Employee unvested restricted shares	0	24,468
Denominator for diluted earnings per share	95,189,490	93,335,100
Basic earnings per Common Share from continuing operations attributable to Acadia	$ 0.14	$ 0.18
Diluted earnings per Common Share from continuing operations attributable to Acadia	$ 0.14	$ 0.18
Series A Preferred OP Units
Anti-Dilutive Shares Excluded from Denominator:
Antidilutive securities excluded from computation of earnings per share (in shares)	188	0
Series A Preferred OP Units - Common Share Equivalent
Anti-Dilutive Shares Excluded from Denominator:
Antidilutive securities excluded from computation of earnings per share (in shares)	25,067	0
Series C Preferred OP Units
Anti-Dilutive Shares Excluded from Denominator:
Antidilutive securities excluded from computation of earnings per share (in shares)	126,384	126,593
Series C Preferred OP Units - Common Share Equivalent
Anti-Dilutive Shares Excluded from Denominator:
Antidilutive securities excluded from computation of earnings per share (in shares)	438,831	439,556
Restricted shares
Anti-Dilutive Shares Excluded from Denominator:
Antidilutive securities excluded from computation of earnings per share (in shares)	78,060	0