| Assets | — | — |
| Current assets | — | — |
| Cash and cash equivalents | 549.94a | 205.15a |
| Billed accounts receivable, less allowance for credit losses of $15,286 and $11,926, respectively | 1,861.21a | 1,318.93a |
| Unbilled accounts receivable, less allowance for credit losses of $1,475 and $850, respectively | 95.79a | 72.77a |
| Other receivables, less allowance for credit losses of $553 and $522, respectively | 86.19a | 166.32a |
| Inventories | 59.22a | 65.54a |
| Prepaid expenses and other | 46.21a | 54.31a |
| Costs and estimated earnings in excess of billings, less allowance for credit losses of $271 and $79, respectively | 91.68a | 28.08a |
| Total current assets | 2,790.24a | 1,911.1a |
| Property and equipment, net | 277.18a | 208.57a |
| Lease right-of-use asset | 229.11a | 205.71a |
| Goodwill | 875.27a | 666.83a |
| Identifiable intangible assets, net | 434.42a | 280.4a |
| Deferred tax assets | 85.44a | 17.72a |
| Other noncurrent assets | 19.43a | 15.25a |
| Total assets | 4,711.09a | 3,305.58a |
| Liabilities and stockholders’ equity | — | — |
| Current liabilities | — | — |
| Current maturities of long-term debt | 6.04a | 4.87a |
| Accounts payable | 654.94a | 419.96a |
| Accrued compensation and benefits | 228.62a | 169.14a |
| Billings in excess of costs and estimated earnings and deferred revenue | 1,149.26a | 909.54a |
| Accrued self-insurance | 42.32a | 27.77a |
| Other current liabilities | 501.59a | 189.93a |
| Total current liabilities | 2,582.77a | 1,721.21a |
| Long-term debt | 62.29a | 39.35a |
| Lease liabilities | 212.11a | 188.14a |
| Deferred tax liabilities | 2.23a | 1.12a |
| Other long-term liabilities | 147.02a | 77.94a |
| Total liabilities | 3,006.41a | 2,027.75a |
| Stockholders’ equity | — | — |
| Preferred stock | 0a | 0a |
| Common stock | 0.41a | 0.41a |
| Treasury stock, at cost | -273.8a | -209.81a |
| Additional paid-in capital | 350.73a | 339.56a |
| Retained earnings | 1,627.33a | 1,147.66a |
| Total stockholders’ equity | 1,704.68a | 1,277.83a |
| Total liabilities and stockholders’ equity | 4,711.09a | 3,305.58a |