| In millions, except per share items | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 | Dec-31-14 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Rental income | 576.5 | 587.9 | 678.4 | 426.6 | | | | |
| |
| Expenses: | | | | | | | | |
| Real estate taxes | 72.0 | 65.1 | 73.7 | 49.7 | 37.9 | 30.7 | 29.9 | |
| Utility expenses | 25.3 | 25.4 | 34.3 | 26.4 | 21.0 | | | |
| Depreciation and amortization | 241.5 | 251.6 | 289.9 | 162.5 | 109.6 | 73.2 | 68.7 | 66.6 |
| Loss on impairment of real estate | 62.4 | 3.0 | 22.3 | 8.6 | 9.5 | | | |
| Acquisition and transaction related costs | | 0.2 | 0.7 | 14.5 | | 1.2 | 0.8 | 1.3 |
| General and administrative | 26.9 | 28.4 | 32.7 | 24.9 | 18.8 | 14.9 | 14.8 | 35.2 |
| Total expenses | 533.8 | 479.2 | 574.5 | 376.3 | 262.2 | 191.5 | 182.6 | 179.5 |
| Interest expense | -112.4 | -108.3 | -134.9 | -89.9 | -65.4 | -45.1 | -37.0 | -28.0 |
| Loss on early extinguishment of debt | -14.1 | -3.8 | -0.8 | -0.7 | -1.7 | 0.1 | 0.0 | -1.3 |
| Loss before income tax (expense) benefit and equity in net losses of investees | -5.4 | 8.2 | 32.4 | -25.2 | -9.6 | 22.9 | -228.0 | 42.2 |
| Income tax (expense) benefit | -0.3 | -0.4 | -0.8 | -0.1 | -0.1 | -0.1 | -0.1 | -0.1 |
| Tax rate | | 4.6% | 2.4% | | | 0.4% | | 0.3% |
| Equity in net losses of investees | -2.5 | -1.2 | -1.3 | -2.3 | 0.0 | 0.1 | 18.6 | 11.0 |
| Net loss | -8.2 | 6.7 | 30.3 | -21.9 | 12.1 | 57.8 | -210.0 | 53.0 |
| |
| Weighted average common shares outstanding (basic) (in shares) | 48.2 | 48.1 | 48.1 | 24.8 | 21.2 | 17.8 | 70.7 | 61.3 |
| Weighted average common shares outstanding (diluted) (in shares) | 48.2 | 48.1 | 48.1 | 24.8 | 21.2 | 17.8 | 70.7 | 61.4 |
| |
| Per common share amounts (basic and diluted): | | | | | | | | |
| Net loss per common share - basic (in dollars per share) | ($0.17) | $0.14 | $0.63 | ($0.90) | $0.56 | $3.26 | ($2.97) | $0.92 |
| Net loss per common share - diluted (in dollars per share) | ($0.17) | $0.14 | $0.63 | ($0.90) | $0.56 | $3.26 | ($2.97) | $0.92 |