CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues:
Rental revenue	$ 14,426	$ 14,114	$ 30,266	$ 28,283
Other revenue	1,115	761	1,961	1,443
Total revenues	15,541	14,875	32,227	29,726
Expenses:
Operating expenses	6,592	6,588	11,125	13,209
Depreciation and amortization	4,313	4,432	8,725	8,783
General and administrative	7,646	7,390	15,648	23,119
Total expenses	18,551	18,410	35,498	45,111
Interest and other income, net	5,963	1,626	7,537	3,469
Income (loss) before income taxes	2,953	(1,909)	4,266	(11,916)
Income tax expense	(50)	(31)	(58)	(62)
Net income (loss)	2,903	(1,940)	4,208	(11,978)
Net (income) loss attributable to noncontrolling interest	(7)	4	(10)	24
Net income (loss) attributable to Equity Commonwealth	2,896	(1,936)	4,198	(11,954)
Preferred distributions	(1,997)	(1,997)	(3,994)	(3,994)
Net income (loss) attributable to Equity Commonwealth common shareholders	$ 899	$ (3,933)	$ 204	$ (15,948)
Weighted average common shares outstanding — basic (in shares)	112,005	122,189	112,868	122,096
Weighted average common shares outstanding — diluted (in shares)	113,380	122,189	113,785	122,096
Earnings per common share attributable to Equity Commonwealth common shareholders:
Basic (in dollars per share)	$ 0.01	$ (0.03)	$ 0.00	$ (0.13)
Diluted (in dollars per share)	$ 0.01	$ (0.03)	$ 0.00	$ (0.13)