| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| CASH FLOWS FROM OPERATING ACTIVITIES: | | | | | | | | |
| Net income | 167.4 | 279.0 | 238.1 | 152.7 | 80.8 | 220.0 | 80.1 | 125.6 |
| Adjustments to reconcile net income to net cash from operating activities: | | | | | | | | |
| Depreciation and amortization | 295.6 | 288.1 | 288.6 | 257.1 | 181.4 | 196.7 | | |
| Amortization of deferred financing costs and premium on notes payable | -0.1 | -0.4 | -0.9 | 1.5 | 2.4 | -2.1 | -1.6 | 1.4 |
| Equity-classified stock-based compensation expense, net of forfeitures | 10.1 | 7.5 | 5.3 | 3.8 | 3.4 | | | |
| Effect of non-cash adjustments to rental revenues | -41.7 | -39.5 | -52.6 | -44.8 | -32.4 | -40.4 | -25.9 | -26.5 |
| Income from unconsolidated joint ventures | -7.7 | -6.8 | -7.9 | -12.7 | -12.2 | -47.1 | -10.6 | -8.3 |
| Operating distributions from unconsolidated joint ventures | 5.4 | 11.5 | 9.3 | 11.8 | 16.8 | 11.1 | 14.2 | 11.7 |
| Loss on extinguishment of debt | -0.2 | | | | 0.0 | -2.3 | 5.2 | |
| Changes in other operating assets and liabilities: | | | | | | | | |
| Change in receivables and other assets, net | 1.7 | 5.5 | -2.4 | -10.1 | -6.0 | 11.5 | 2.2 | -10.9 |
| Change in operating liabilities, net | -9.2 | 10.2 | -5.3 | 54.6 | 0.4 | -5.6 | -20.7 | 4.5 |
| Net cash provided by operating activities | 365.2 | 389.5 | 351.1 | 303.2 | 229.0 | 211.6 | 117.7 | 154.3 |
| |
| CASH FLOWS FROM INVESTING ACTIVITIES: | | | | | | | | |
| Contributions to unconsolidated joint ventures | -47.9 | -65.1 | -4.3 | -23.4 | -50.9 | -20.1 | -28.5 | -10.0 |
| Net cash used in investing activities | -334.5 | -191.1 | -132.5 | -357.4 | -284.5 | 112.1 | 465.8 | 35.1 |
| |
| CASH FLOWS FROM FINANCING ACTIVITIES: | | | | | | | | |
| Repayment of term loans | | -250.0 | | | | | | |
| Payment of deferred financing costs | -8.2 | -3.0 | -0.1 | -2.9 | -6.2 | -2.1 | | |
| Contributions from noncontrolling interests | 2.9 | 6.2 | 5.2 | 8.1 | 1.5 | 2.6 | 4.1 | |
| Distributions to noncontrolling interests | -0.1 | -1.3 | -1.2 | -2.4 | -2.7 | -1.8 | -286.1 | -0.1 |
| Net cash provided by (used in) financing activities | -35.7 | -194.4 | -230.1 | 69.2 | -147.6 | -169.3 | -538.5 | -188.1 |
| CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT BEGINNING OF PERIOD | | | | | | | 45.0 | |
| CASH, CASH EQUIVALENTS, AND RESTRICTED CASH AT END OF PERIOD | | | | | | | 45.0 | |