In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-05-18 | Dec-31-17 | Dec-31-16 |
| 10-K | 10-K | 10-K | 10-K | 10-K | 8-K | 10-K | 10-K |
Revenues: | | | | | | | | |
Rental revenue | 58.8 | 54.9 | 62.1 | 116.9 | 184.4 | 184.4 | | |
Other revenue | 63.1 | 58.0 | 66.3 | 127.9 | 197.0 | 197.0 | 340.6 | 500.7 |
Other revenue growth | 8.9% | -12.5% | -48.2% | -35.1% | -42.1% | | -32.0% | -30.0% |
Total revenues | 63.1 | 58.0 | 66.3 | 127.9 | 197.0 | 197.0 | 340.6 | 500.7 |
Total revenues growth | 8.9% | -12.5% | -48.2% | -35.1% | -42.1% | | -32.0% | -30.0% |
Expenses: | | | | | | | | |
Depreciation and amortization | 17.8 | 17.8 | 19.3 | 28.1 | 49.0 | 49.0 | 90.7 | 131.8 |
General and administrative | 30.4 | 37.4 | 33.2 | 38.4 | 44.4 | 44.4 | 47.8 | 50.3 |
Total expenses | 72.4 | 81.1 | 81.4 | 113.0 | 185.5 | -65.9 | 299.6 | 441.2 |
Interest and other income, net | 46.9 | 6.8 | 21.2 | 72.4 | 46.8 | | 26.4 | 10.3 |
Income tax expense | -0.5 | -0.1 | -0.2 | -1.3 | -3.2 | -3.2 | -0.5 | -0.7 |
Net income | 37.4 | -16.4 | 452.1 | 492.9 | 272.9 | | 29.7 | 232.9 |
Net income attributable to noncontrolling interest | -0.1 | 0.0 | -0.8 | -0.2 | -0.1 | 0.1 | 0.0 | |
Net income attributable to Equity Commonwealth | 37.3 | -16.4 | 451.3 | 492.7 | 272.8 | 272.9 | 29.7 | 232.9 |
Preferred distributions | -8.0 | -8.0 | -8.0 | -8.0 | -8.0 | | -8.0 | -18.0 |
Net income attributable to Equity Commonwealth common shareholders | 29.3 | -24.4 | 443.3 | 484.7 | 264.8 | | 21.7 | 205.3 |
|
Weighted average common shares outstanding — basic (in shares) | 111.7 | 121.4 | 121.8 | 122.1 | 122.3 | | 124.1 | 125.5 |
Weighted average common shares outstanding — diluted (in shares) | 112.8 | 121.4 | 126.6 | 126.3 | 123.4 | | 125.1 | 126.8 |
|
Earnings per common share attributable to Equity Commonwealth common shareholders: | | | | | | | | |
Basic (in dollars per share) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | | 0.0 | 0.0 |
Diluted (in dollars per share) | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | | 0.0 | 0.0 |