| Net Income | 81.25 | 77.05 | 65.82 | 55.13 | 44.6 | 45.59 | |
| Depreciation & Amortization | 46.74 | 42.23 | 34.75 | 28.19 | 24.91 | 18.67 | |
| Stock-Based Compensation | 48.41 | 54.56 | 45.51 | 33.4 | 27.57 | 18.94 | |
| Provision & Write-off of Bad Debts | 8.1 | 7.68 | 5.71 | 3.36 | 4.72 | 5.66 | |
| Other Operating Activities | -5.96 | -9.21 | -7.66 | -3.51 | 4.2 | 4.13 | |
| Change in Accounts Receivable | -10.34 | -9.65 | -11.95 | -6.44 | -4.96 | -5.92 | |
| Change in Accounts Payable | -2.63 | 0.8 | -3.95 | 0.14 | 2.26 | 1.21 | |
| Change in Unearned Revenue | -0.24 | 0.73 | 6.46 | 5.97 | 14.48 | 4.43 | |
| Change in Other Net Operating Assets | -2.02 | -6.79 | -2.39 | -16.19 | -4.9 | -4.14 | |
| Operating Cash Flow | 163.32 | 157.4 | 132.3 | 100.05 | 112.89 | 88.56 | |
| Operating Cash Flow Growth | 12.84% | 18.97% | 32.23% | -11.37% | 27.47% | 23.36% | |
| Capital Expenditures | -22.66 | -20.05 | -19.76 | -19.88 | -19.59 | -16.47 | |
| Cash Acquisitions | -289.56 | -147.92 | -70.22 | -91.42 | -17.07 | -98.67 | |
| Investment in Securities | 56.93 | 57.52 | -2.66 | -1.49 | -10.05 | -5.34 | |
| Investing Cash Flow | -255.3 | -110.45 | -92.64 | -112.79 | -46.7 | -120.47 | |
| Issuance of Common Stock | 13.94 | 14.54 | 17.97 | 11.58 | 14.11 | 21.97 | |
| Repurchase of Common Stock | -61.03 | -37.57 | - | -43.22 | -20.43 | -18.95 | |
| Other Financing Activities | - | - | -2 | - | -2.04 | -0.69 | |
| Financing Cash Flow | -47.09 | -23.03 | 15.97 | -31.63 | -8.36 | 2.33 | |
| Foreign Exchange Rate Adjustments | -0.65 | -1.98 | 0.56 | -0.29 | 0.03 | 0.02 | |
| Net Cash Flow | -139.72 | 21.94 | 56.19 | -44.66 | 57.86 | -29.56 | |
| Free Cash Flow | 140.65 | 137.35 | 112.54 | 80.17 | 93.31 | 72.1 | |
| Free Cash Flow Growth | 11.02% | 22.05% | 40.37% | -14.07% | 29.42% | 23.86% | |
| Free Cash Flow Margin | 21.00% | 21.54% | 20.96% | 17.78% | 24.22% | 23.06% | |
| Free Cash Flow Per Share | 3.70 | 3.63 | 3.00 | 2.17 | 2.52 | 1.99 | |
| Cash Income Tax Paid | 27.1 | 27.1 | 29.21 | 16.08 | 9.98 | 1.66 | |
| Levered Free Cash Flow | 124.72 | 133.3 | 111.13 | 80.42 | 77.5 | 59.78 | |
| Unlevered Free Cash Flow | 124.72 | 133.3 | 111.13 | 80.42 | 77.5 | 59.78 | |
| Change in Net Working Capital | 9.91 | -1 | -2.35 | 5.78 | -10.18 | -7.29 | |