Real Estate - Schedule of Disposal Groups, Including Discontinued Operations, Income Statement, Balance Sheet and Additional Disclosures (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
STATEMENTS OF INCOME
Gain on disposition of properties	$ 5,140	$ 48,886	$ 81,965
Disposal Group, Not Discontinued Operations
STATEMENTS OF INCOME
Revenues	1,968	16,249	20,097
Expenses	(1,874)	(20,529)	(17,079)
Loss (income) from continuing operations of disposed properties before gain on disposition of properties	94	(4,280)	3,018
Gain on disposition of properties	5,140	48,886	81,965
Net income attributable to noncontrolling interests	(3,368)	(32,254)	(70,714)
Net income attributable to Acadia	$ 1,866	$ 12,352	$ 14,269

Amount after tax of income (loss) from a discontinued operation including the portion attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

Amount after tax of income (loss) from a discontinued operation attributable to the noncontrolling interest. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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+ Details

- Definition

Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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