CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 64,308	$ 134,592	$ 149,970
Other comprehensive income (loss):
Unrealized income (loss) on valuation of swap agreements	634	(646)	(5,061)
Reclassification of realized interest on swap agreements	3,317	4,576	5,524
Other comprehensive income	3,951	3,930	463
Comprehensive income	68,259	138,522	150,433
Comprehensive income attributable to noncontrolling interests	(3,377)	(62,081)	(85,183)
Comprehensive income attributable to Acadia	$ 64,882	$ 76,441	$ 65,250