CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net (loss) income	$ (2,270)	$ 6,108	$ (6,430)	$ 26,079
Other comprehensive income (loss):
Unrealized income (loss) on valuation of swap agreements	2,950	(2,124)	8,603	(2,008)
Reclassification of realized interest on swap agreements	109	930	472	1,903
Other comprehensive income (loss)	3,059	(1,194)	9,075	(105)
Comprehensive income	789	4,914	2,645	25,974
Comprehensive loss attributable to noncontrolling interests	9,638	6,205	19,963	1,995
Comprehensive income attributable to Acadia	$ 10,427	$ 11,119	$ 22,608	$ 27,969