Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($)	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Gain on property dispositions in discontinued operations	$ 8,700,000	$ 90,000,000
Liberty Property Limited Partnership
Gain on property dispositions in discontinued operations	$ 8,700,000	$ 90,000,000

Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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