| Assets | — | — |
| Current assets | — | — |
| Cash and cash equivalents | 258.9a | 187.15a |
| Accounts receivable, net of allowance for contract losses and doubtful accounts | 161.41a | 167.36a |
| Prepaid expenses and other current assets | 26.57a | 25.02a |
| Total current assets | 446.88a | 379.53a |
| Property, equipment and leasehold improvements, net | 73.01a | 75.32a |
| Operating lease right-of-use assets | 75.25a | 24.6a |
| Goodwill | 8.61a | 8.61a |
| Deferred income taxes | 57.13a | 53.82a |
| Deferred compensation plan assets | 110.26a | 101.17a |
| Other assets | 6.14a | 3.73a |
| Total assets | 777.27a | 646.78a |
| Liabilities and stockholders’ equity | — | — |
| Current liabilities | — | — |
| Accounts payable and accrued liabilities | 22.14a | 22.13a |
| Accrued payroll and employee benefits | 119.29a | 111.77a |
| Deferred revenues | 16.37a | 21.71a |
| Operating lease liabilities | 5.39a | 6.3a |
| Total current liabilities | 163.18a | 161.91a |
| Other liabilities | 4.29a | 3.43a |
| Deferred compensation plan liabilities | 112.65a | 103.4a |
| Operating lease liabilities | 76.08a | 21.96a |
| Total liabilities | 356.2a | 290.69a |
| Stockholders’ equity | — | — |
| Preferred stock | | |
| Common stock | 0.07a | 0.07a |
| Additional paid-in capital | 345.69a | 321.45a |
| Accumulated other comprehensive income/(loss) foreign currency translation adjustments | -3.79a | -2.98a |
| Retained earnings | 624.15a | 574.08a |
| Treasury stock, at cost | -545.05a | -536.53a |
| Total stockholders’ equity | 421.07a | 356.09a |
| Total liabilities and stockholders’ equity | 777.27a | 646.78a |