Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
REVENUE
Rental revenue	$ 162,912	$ 148,330	$ 479,644	$ 439,812
Development service fee income	257	12,956	2,099	59,132
Total revenue	163,169	161,286	481,743	498,944
EXPENSES
Rental property	12,012	12,871	39,780	39,340
Real estate taxes	23,001	22,693	68,862	65,988
General and administrative	10,186	9,807	35,483	32,747
Leasing expense	3,082	2,610	9,608	8,189
Other Cost and Expense, Operating	3,166	3,169	8,690	7,467
Interest expense	25,791	23,133	76,644	66,189
Depreciation and amortization	43,972	41,004	130,402	120,586
Development service fee expense	168	12,924	1,848	120,799
Impairment charges - real estate assets			99	26,000
Total expenses	121,378	128,211	371,416	487,305
OTHER INCOME (EXPENSE)
Interest and other income	2,630	3,474	13,887	8,737
Gain on property dispositions	15,168	2,002	21,125	54,705
Equity in earnings of unconsolidated joint ventures	1,776	6,766	10,966	20,958
Income from continuing operations before income taxes	61,365	45,317	156,305	96,039
Income taxes	(878)	(444)	(1,449)	(1,884)
Income from continuing operations	60,487	44,873	154,856	94,155
Income from discontinued operations	42,189	109,198	105,905	224,531
Net income	102,676	154,071	260,761	318,686
Noncontrolling interest - operating partnership	(2,309)	(3,696)	(6,126)	(7,738)
Noncontrolling interest - consolidated joint ventures	(3)	(232)	(170)	(1,010)
Net income available to common shareholders	100,364	150,143	254,465	309,938
Comprehensive income attributable to common shareholders
Net income	102,676	154,071	260,761	318,686
Other comprehensive loss - foreign currency translation	(7,056)	(3,015)	(7,574)	(9,221)
Other comprehensive income (loss) - derivative instruments	83	6	(1,887)	493
Other comprehensive income	(6,973)	(3,009)	(9,461)	(8,728)
Total comprehensive income	95,703	151,062	251,300	309,958
Less: comprehensive income attributable to noncontrolling interest	(2,463)	(3,858)	(6,390)	(8,545)
Comprehensive income attributable to parent	$ 93,240	$ 147,204	$ 244,910	$ 301,413
Weighted average number of common shares or units outstanding
Basic (in shares)	150,140	147,324	148,532	147,241
Diluted (in shares)	150,979	148,271	149,383	148,160
Amounts attributable to common shareholders or unitholders
Income from continuing operations net of noncontrolling interest	$ 59,091	$ 43,713	$ 151,150	$ 91,051
Income from discontinued operations	41,273	106,430	103,315	218,887
Net income available to common shareholders	100,364	150,143	254,465	309,938
Liberty Property Limited Partnership
REVENUE
Rental revenue	162,912	148,330	479,644	439,812
Development service fee income	257	12,956	2,099	59,132
Total revenue	163,169	161,286	481,743	498,944
EXPENSES
Rental property	12,012	12,871	39,780	39,340
Real estate taxes	23,001	22,693	68,862	65,988
General and administrative	10,186	9,807	35,483	32,747
Leasing expense	3,082	2,610	9,608	8,189
Other Cost and Expense, Operating	3,166	3,169	8,690	7,467
Interest expense	25,791	23,133	76,644	66,189
Depreciation and amortization	43,972	41,004	130,402	120,586
Development service fee expense	168	12,924	1,848	120,799
Impairment charges - real estate assets			99	26,000
Total expenses	121,378	128,211	371,416	487,305
OTHER INCOME (EXPENSE)
Interest and other income	2,630	3,474	13,887	8,737
Gain on property dispositions	15,168	2,002	21,125	54,705
Equity in earnings of unconsolidated joint ventures	1,776	6,766	10,966	20,958
Income from continuing operations before income taxes	61,365	45,317	156,305	96,039
Income taxes	(878)	(444)	(1,449)	(1,884)
Income from continuing operations	60,487	44,873	154,856	94,155
Income from discontinued operations	42,189	109,198	105,905	224,531
Net income	102,676	154,071	260,761	318,686
Noncontrolling interest - consolidated joint ventures	(3)	(232)	(170)	(1,010)
Preferred unit distributions	(83)	(118)	(251)	(354)
Net income available to common shareholders	102,590	153,721	260,340	317,322
Comprehensive income attributable to common shareholders
Net income	102,676	154,071	260,761	318,686
Other comprehensive loss - foreign currency translation	(7,056)	(3,015)	(7,574)	(9,221)
Other comprehensive income (loss) - derivative instruments	83	6	(1,887)	493
Other comprehensive income	(6,973)	(3,009)	(9,461)	(8,728)
Total comprehensive income	$ 95,703	$ 151,062	$ 251,300	$ 309,958
Weighted average number of common shares or units outstanding
Basic (in shares)	153,646	150,844	152,045	150,761
Diluted (in shares)	154,485	151,791	152,896	151,680
Amounts attributable to common shareholders or unitholders
Income from continuing operations net of noncontrolling interest	$ 60,484	$ 44,865	$ 154,872	$ 93,557
Income from discontinued operations	42,189	108,974	105,719	224,119
Net income available to common shareholders	102,590	153,721	260,340	317,322
Net income allocated to general partners	100,364	150,143	254,465	309,938
Net income allocated to limited partners	$ 2,309	$ 3,696	$ 6,126	$ 7,738
Common Units | Liberty Property Limited Partnership
Basic:
Income from continuing operations (in usd per share)	$ 0.39	$ 0.30	$ 1.02	$ 0.62
Income from discontinued operations (in usd per share)	0.28	0.72	0.69	1.48
Earnings Per Share, Basic	0.67	1.02	1.71	2.10
Diluted:
Income from continuing operations (in usd per share)	0.39	0.29	1.01	0.61
Income from discontinued operations (in usd per share)	0.27	0.72	0.69	1.48
Earnings Per Share, Diluted	0.66	1.01	1.70	2.09
Common shares
Basic:
Income from continuing operations (in usd per share)	0.39	0.30	1.02	0.62
Income from discontinued operations (in usd per share)	0.28	0.72	0.69	1.48
Earnings Per Share, Basic	0.67	1.02	1.71	2.10
Diluted:
Income from continuing operations (in usd per share)	0.39	0.29	1.01	0.61
Income from discontinued operations (in usd per share)	0.27	0.72	0.69	1.48
Earnings Per Share, Diluted	$ 0.66	$ 1.01	$ 1.70	$ 2.09