| Revenues | 2,427.43a | 2,233.05a | 2,000.82a |
| Operating expenses | — | — | — |
| Cost of revenues | -1,579.84a | -1,481.3a | -1,306.45a |
| Selling and administrative expenses | -522.59a | -496.92a | -451.24a |
| Depreciation and amortization | -141.43a | -121.23a | -108.78a |
| Total operating expenses | -2,243.85a | -2,099.44a | -1,866.47a |
| Operating income | 183.58a | 133.6a | 134.35a |
| Other (income) expense | — | — | — |
| Interest income, net | -7.24a | -6.74a | -2.85a |
| Other expense, net | -1.44a | -1.5a | -2.88a |
| Total other (income) expense, net | -5.8a | -5.23a | 0.03a |
| Income before income taxes | 189.38a | 138.84a | 134.33a |
| Provision for income taxes | -43.91a | -35.16a | -30.92a |
| Net income | 145.47a | 103.67a | 103.4a |
| Income allocated to - basic | — | — | — |
| Common stock | 122.19a | 87.1a | 86.84a |
| Class B common stock | 23.29a | 16.57a | 16.56a |
| Income allocated to - diluted | — | — | — |
| Common stock | 145.47a | 103.67a | 103.4a |