| 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 |
| Revenues: | | | | | | | | |
| Total revenues | 733.0 | 442.9 | 1,612.2 | 828.7 | 769.3 | 816.4 | 770.9 | 598.8 |
| Total revenues growth | 65.5% | -72.5% | 94.6% | 7.7% | -5.8% | 5.9% | 28.7% | 22.4% |
| Expenses: | | | | | | | | |
| Hotel operating expenses: | | | | | | | | |
| Depreciation and amortization | 224.3 | 224.6 | 234.9 | 108.5 | 102.3 | | | |
| Real estate taxes, personal property taxes, property insurance, and ground rent | 111.7 | 114.3 | 125.0 | 54.2 | 48.5 | 50.5 | 46.9 | 36.9 |
| General and administrative | 38.2 | 45.2 | 34.0 | 20.9 | 20.1 | 27.9 | 32.3 | 28.3 |
| Impairment | 14.9 | 74.6 | | | | | | |
| Gain on sale of hotel properties | -64.7 | -117.4 | -2.8 | 2.1 | | | | |
| Other operating expenses | 1.9 | 4.4 | 8.9 | -10.9 | 9.9 | | | |
| Total operating expenses | 822.8 | 735.6 | 1,382.9 | 761.7 | 633.9 | 636.4 | 1,707.6 | 1,352.1 |
| Operating income (loss) | -89.8 | -292.7 | 229.3 | 67.0 | 135.4 | 180.0 | 127.6 | 91.3 |
| Operating margin | -12.2% | -66.1% | 14.2% | 8.1% | 17.6% | 22.0% | 16.6% | 15.2% |
| Interest expense | -96.6 | -104.1 | -108.5 | -53.9 | -37.3 | -43.6 | -38.8 | -27.1 |
| Other | 0.1 | 0.5 | 0.0 | 2.1 | 2.4 | 0.3 | | |
| Income (loss) before income taxes | -186.3 | -396.3 | 120.9 | 15.1 | 100.4 | 73.8 | 97.6 | 76.8 |
| Income tax (expense) benefit | -0.1 | 3.7 | -5.2 | -1.7 | -0.2 | 0.1 | -2.6 | -3.3 |
| Net income (loss) | -186.4 | -392.6 | 115.7 | 13.4 | 100.3 | 74.0 | 95.0 | 73.5 |
| Net income (loss) attributable to non-controlling interests | -1.5 | -0.9 | 0.3 | 0.0 | 0.4 | 0.3 | 0.3 | 0.7 |
| Net income (loss) attributable to the Company | -184.9 | -391.7 | 115.4 | 13.4 | 99.9 | 73.7 | 94.7 | 72.9 |
| Distributions to preferred shareholders | -42.1 | -32.6 | -32.6 | -17.5 | -16.1 | -19.7 | -26.0 | -25.1 |
| Net income (loss) attributable to common shareholders | -235.0 | -424.3 | 82.9 | -4.1 | 83.8 | 47.0 | 68.7 | 47.8 |
| |
| Net income | ($1.80) | ($3.25) | $0.63 | ($0.06) | $1.20 | $0.65 | $0.95 | $0.72 |
| Net income | ($1.80) | ($3.25) | $0.63 | ($0.06) | $1.19 | $0.64 | $0.94 | $0.71 |
| |
| Weighted-average number of common shares, basic (in shares) | 130.8 | 130.6 | 130.5 | 74.3 | 69.6 | 71.9 | 71.7 | 65.6 |
| Weighted-average number of common shares, diluted (in shares) | 130.8 | 130.6 | 130.7 | 74.3 | 70.0 | 72.4 | 72.4 | 66.3 |
| |
| Comprehensive Income: | | | | | | | | |
| Net income (loss) | -186.4 | -392.6 | 115.7 | 13.4 | 100.3 | 74.0 | 95.0 | 73.5 |
| |
| Other comprehensive income (loss): | | | | | | | | |
| Change in fair value of derivative instruments | 15.3 | -63.9 | -25.8 | -1.9 | | | | |
| Amounts reclassified from other comprehensive income | 25.2 | 28.5 | -0.3 | -1.0 | | | | |
| |
| Comprehensive income (loss) | | | | | | | | |
| Comprehensive income (loss) attributable to non-controlling interests | | | | | | | | |
| Comprehensive income (loss) attributable to the Company | -144.6 | -427.0 | 89.5 | 10.5 | 105.9 | 76.1 | 90.3 | 71.5 |