CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Revenues:
Rental revenue	$ 38,890	$ 55,273
Total revenues	41,752	58,588
Expenses:
Operating expenses	15,780	24,599
Depreciation and amortization	8,585	13,903
General and administrative	12,096	13,339
Loss on asset impairment	0	12,087
Total expenses	36,461	63,928
Interest and other income, net	17,775	5,780
Interest expense (including net amortization of debt discounts, premiums and deferred financing fees of $165 and $801, respectively)	(4,206)	(10,115)
Loss on early extinguishment of debt	0	(4,867)
Gain on sale of properties, net	193,037	205,211
Income before income taxes	211,897	190,669
Income tax expense	(1,300)	(3,007)
Net income	210,597	187,662
Net income attributable to noncontrolling interest	(79)	(63)
Net income attributable to Equity Commonwealth	210,518	187,599
Preferred distributions	(1,997)	(1,997)
Net income attributable to Equity Commonwealth common shareholders	$ 208,521	$ 185,602
Weighted average common shares outstanding — basic (in shares)	121,960	123,867
Weighted average common shares outstanding — diluted (in shares)	125,822	127,097
Earnings per common share attributable to Equity Commonwealth common shareholders:
Basic (in dollars per share)	$ 1.71	$ 1.50
Diluted (in dollars per share)	$ 1.67	$ 1.48
Other revenue
Revenues:
Other revenue	$ 2,862	$ 3,315