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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 10,182	$ 7,128	$ 21,381	$ 20,007
Other comprehensive gain
Net unrealized gain on derivative instruments	871	104	4,671	172
Reclassification of One Liberty Properties Inc.'s share of joint venture net realized gain on derivative instrument			(110)
One Liberty Properties Inc.'s share of joint venture net unrealized gain on derivative instruments		11	76	34
Other comprehensive gain	871	115	4,637	206
Comprehensive income	11,053	7,243	26,018	20,213
Net income attributable to non-controlling interests	(35)	(23)	(866)	(65)
Adjustment for derivative instruments attributable to non-controlling interests	(3)	(1)	(11)	(2)
Comprehensive income attributable to One Liberty Properties, Inc.	$ 11,015	$ 7,219	$ 25,141	$ 20,146

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