| In millions, except per share items | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 | Dec-31-14 | Dec-31-13 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Revenues: |
| Rental revenue | | | | | | 183.3 | 149.3 | 131.1 |
| Other | | | | | | 150.0 | 123.1 | 103.8 |
| Total revenues [+] | 606.8 | 572.7 | 544.4 | 481.8 | 400.4 | 333.3 | 272.4 | 234.8 |
| Land sales | | | | | | 0.0 | 1.2 | |
| Lease / rental | | | | | | 183.3 | 149.3 | 131.1 |
| Net interest income | | | | | | -7.1 | | |
| Revenue growth [+] | 6.0% | 5.2% | 13.0% | 20.3% | 20.1% | 22.3% | 16.0% | 13.5% |
| Rental revenue | | | | | | 22.8% | 13.9% | 12.9% |
| Cost of goods sold [+] | 193.9 | 180.2 | 171.6 | 171.9 | 144.2 | 123.0 | 82.7 | 72.7 |
| Lease costs | | | | 24.1 | 22.6 | 21.1 | | |
| Real estate taxes and insurance | 24.0 | 22.9 | 19.2 | 14.9 | 14.3 | 12.1 | 7.6 | 8.5 |
| Real estate or leased property costs | 169.9 | 157.3 | 152.4 | 132.8 | | 89.8 | 75.1 | 64.3 |
| Gross profit | 413.0 | 392.6 | 372.8 | 310.0 | 256.1 | 210.3 | 189.7 | 162.1 |
| Gross margin | 68.1% | 68.5% | 68.5% | 64.3% | 64.0% | 63.1% | 69.6% | 69.0% |
| Selling, general and administrative [+] | 67.8 | 66.2 | 61.1 | 55.7 | 52.9 | 50.1 | 62.8 | 61.4 |
| Sales and marketing | 23.7 | 22.4 | 21.0 | 18.2 | 17.5 | 15.9 | 14.6 | 14.4 |
| General and administrative [+] | 44.0 | 43.8 | 40.1 | 37.5 | 35.4 | 34.2 | 48.2 | 27.3 |
| General and administrative expenses | 44.0 | 43.8 | 40.1 | 37.5 | 35.4 | 34.2 | 48.2 | 27.3 |
| Rent expense | | | | | | | 20.4 | 19.7 |
| Other selling, general and administrative | | | | | | | | 19.7 |
| Other operating expenses | 36.5 | 32.6 | 27.8 | | | | | 0.3 |
| EBITDA [+] | 308.7 | 293.7 | 283.9 | 254.2 | 203.3 | 160.2 | 126.9 | 99.6 |
| EBITDA growth | 5.1% | 3.5% | 11.7% | 25.1% | 26.9% | 26.2% | 27.4% | 24.8% |
| EBITDA margin | 50.9% | 51.3% | 52.2% | 52.8% | 50.8% | 48.1% | 46.6% | 42.4% |
| Depreciation and amortization | 168.9 | 152.9 | 141.6 | 129.3 | 108.7 | 95.7 | 80.7 | 65.0 |
| EBIT [+] | 139.8 | 140.8 | 142.3 | 125.0 | 94.6 | 64.5 | 46.2 | 34.7 |
| EBIT growth | -0.8% | -1.0% | 13.8% | 32.1% | 46.8% | 39.5% | 33.3% | 103.4% |
| EBIT margin | 23.0% | 24.6% | 26.1% | 25.9% | 23.6% | 19.3% | 17.0% | 14.8% |
| Non-recurring items [+] | | | | 0.2 | | 0.4 | 2.0 | |
| Asset impairment | | | | | | 0.3 | 2.0 | |
| Interest expense, net [+] | 45.1 | 41.7 | 35.5 | 24.1 | 12.6 | | 5.3 | 2.7 |
| Interest expense | 45.1 | 41.7 | 35.5 | 24.1 | 12.6 | | 5.3 | 2.7 |
| Interest income | | | | | | | 0.0 | 0.0 |
| Other income (expense), net [+] | | | | | | -7.1 | 1.2 | |
| Acquisition-related costs | | | 0.1 | | | | | |
| Pre-tax income | 94.7 | 99.1 | 106.8 | 100.7 | 82.0 | 57.0 | 40.1 | 32.0 |
| Income taxes | 0.1 | 0.1 | 0.0 | 0.2 | 0.1 | 0.2 | 0.0 | 0.4 |
| Tax rate | 0.1% | 0.1% | | 0.2% | 0.1% | 0.3% | 0.1% | 1.3% |
| Minority interest | 15.3 | 23.2 | 28.8 | 25.6 | 23.2 | 22.2 | 17.3 | 12.8 |
| Net income | 79.3 | 75.8 | 77.9 | 62.6 | 50.4 | 26.4 | 14.4 | 10.5 |
| Net margin | 13.1% | 13.2% | 14.3% | 13.0% | 12.6% | 7.9% | 5.3% | 4.5% |
| |
| Basic EPS [+] | $1.96 | $2.06 | $2.23 | $1.85 | $1.56 | $1.05 | $0.68 | $0.50 |
| Growth | -5.0% | -7.5% | 20.3% | 18.8% | 49.2% | 53.4% | 35.2% | 124.8% |
| Diluted EPS [+] | $1.95 | $2.05 | $2.22 | $1.84 | $1.54 | $1.03 | $0.66 | $0.49 |
| Growth | -4.9% | -7.4% | 20.6% | 19.4% | 50.0% | 54.6% | 35.9% | 122.5% |
| |
| Dividends per share [+] | $5.84 | $6.09 | $5.52 | $5.10 | $3.37 | $3.47 | $3.49 | $2.74 |
| Growth | -4.1% | 10.3% | 8.2% | 51.5% | -2.8% | -0.6% | 27.2% | 70.1% |
| |
| Shares outstanding (basic) [+] | 40.5 | 36.8 | 35.0 | 33.8 | 32.3 | 25.2 | 21.2 | 20.8 |
| Growth | 10.0% | 5.2% | 3.4% | 4.7% | 28.0% | 19.2% | 1.6% | 1.4% |
| Shares outstanding (diluted) [+] | 40.6 | 36.9 | 35.1 | 34.1 | 32.7 | 25.7 | 21.7 | 21.5 |
| Growth | 10.0% | 5.1% | 3.2% | 4.1% | 27.3% | 18.2% | 1.1% | 2.4% |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |