| In millions, except per share items | Dec-31-11 | Dec-31-10 | Dec-31-09 | Dec-31-08 | Dec-31-07 | Dec-31-06 | Dec-31-05 | Dec-31-04 |
| | 10-K/A | 10-K/A | 10-K/A | 10-K | 10-K/A | 10-K/A | 10-K/A | 10-K |
| Operating revenue: | | | | | | | | |
| Reimbursed costs incurred on behalf of managed communities | | | | | | 912.0 | 912.0 | 802.6 |
| Total operating revenues | 1,312.2 | 1,400.5 | 1,453.0 | 1,556.0 | 1,482.0 | 1,628.6 | 1,511.0 | 1,267.6 |
| Total operating revenues growth | -6.3% | -3.6% | -6.6% | 5.0% | -9.0% | 7.8% | 19.2% | 15.6% |
| Operating expenses: | | | | | | | | |
| Community expense for consolidated communities | | | | 313.0 | 294.1 | 333.6 | 309.0 | 47.0 |
| Depreciation and amortization | | | | 39.2 | 42.6 | 47.7 | 43.0 | 40.0 |
| General and administrative | | | | 150.3 | 183.5 | 131.5 | 106.6 | 86.1 |
| Provision for doubtful accounts | | | | 20.1 | 7.7 | 14.0 | 1.7 | 2.3 |
| Impairment of long-lived assets | 12.7 | 5.6 | 29.4 | 121.8 | | | | |
| Costs incurred on behalf of managed communities | | | | 996.9 | 956.0 | 912.0 | 912.0 | 802.6 |
| Total operating expenses | | | | 1,898.5 | 1,682.1 | 1,700.9 | 1,476.4 | 1,277.3 |
| Loss from operations | | | | -342.5 | -200.1 | -72.3 | 34.7 | -9.6 |
| Operating margin | | | | -22.0% | -13.5% | -4.4% | 2.3% | -0.8% |
| |
| Other non-operating income (expense): | | | | | | | | |
| Interest income | | | | 6.0 | 9.5 | 9.5 | 6.2 | 5.6 |
| Interest expense | | | | -6.6 | -5.2 | -6.2 | -11.9 | -12.3 |
| Other expense | | | | 22.1 | 5.8 | -6.7 | -3.1 | -4.1 |
| Sunrise's share of earnings (loss) and return on investment in unconsolidated communities | | | | | | | | |
| Income (loss) before provision for income taxes and discontinued operations | | | | -491.2 | -59.7 | 32.8 | 135.2 | 0.6 |
| Provision for income taxes | | | | -47.1 | 13.3 | 17.5 | 52.2 | -0.5 |
| Tax rate | | | | 9.6% | | 53.4% | 38.6% | |
| Discontinued operations, net of tax | | | | -120.5 | -70.5 | -0.4 | | |
| Less: Income attributable to noncontrolling interests, net of tax | | | | | | 6.9 | 6.7 | -1.1 |
| Net income (loss) attributable to common shareholders | | | | -444.1 | -73.0 | 15.3 | 83.1 | 1.1 |
| |
| Earnings per share data: | | | | | | | | |
| Basic net income (loss) per common share | | | | | | | | |
| |
| Net income (loss) (in dollars per share) | | | | ($439,179.00) | ($70,275.00) | $0.31 | $2.00 | $0.03 |
| |
| Diluted net income (loss) per common share | | | | | | | | |
| Discontinued operations, net of tax (in dollars per share) | | | | 0.0 | 0.0 | 0.0 | | |
| Net income (loss) (in dollars per share) | | | | ($8.72) | ($1.41) | $0.31 | $1.74 | $0.03 |