CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenues:
Total revenues	$ 46,873	$ 77,798	$ 154,097	$ 268,948
Expenses:
Operating expenses	20,257	32,380	64,377	110,751
Depreciation and amortization	11,287	21,133	38,211	71,970
General and administrative	10,905	11,689	35,466	35,727
Loss on asset impairment	0	0	12,087	19,714
Total expenses	42,449	65,202	150,141	238,162
Operating income	4,424	12,596	3,956	30,786
Interest and other income, net	12,626	7,596	31,074	17,987
Interest expense (including net amortization of debt discounts, premiums and deferred financing fees of $559, $784, $2,005 and $2,346, respectively)	(5,085)	(11,510)	(21,550)	(41,387)
Loss on early extinguishment of debt	0	(203)	(6,403)	(266)
Gain on sale of properties, net	20,877	25,080	253,025	44,670
Income before income taxes	32,842	33,559	260,102	51,790
Income tax expense	(65)	(335)	(2,616)	(555)
Net income	32,777	33,224	257,486	51,235
Net income attributable to noncontrolling interest	(13)	(12)	(90)	(18)
Net income attributable to Equity Commonwealth	32,764	33,212	257,396	51,217
Preferred distributions	(1,997)	(1,997)	(5,991)	(5,991)
Net income attributable to Equity Commonwealth common shareholders	$ 30,767	$ 31,215	$ 251,405	$ 45,226
Weighted average common shares outstanding — basic (in shares)	121,845	124,089	122,504	124,068
Weighted average common shares outstanding — diluted (in shares)	122,851	125,175	123,389	125,194
Earnings per common share attributable to Equity Commonwealth common shareholders:
Basic (in dollars per share)	$ 0.25	$ 0.25	$ 2.05	$ 0.36
Diluted (in dollars per share)	0.25	0.25	2.04	0.36
Distributions declared per common share (in dollars per share)	$ 2.50	$ 0	$ 2.50	$ 0
Rental income
Revenues:
Total revenues	$ 34,138	$ 61,091	$ 112,898	$ 215,648
Tenant reimbursements and other income
Revenues:
Total revenues	$ 12,735	$ 16,707	$ 41,199	$ 53,300