| Net Income | 109 | 100.34 | 102.33 | 101.2 | 82.55 | |
| Depreciation & Amortization | 9.69 | 8.92 | 7.08 | 6.49 | 6.87 | |
| Loss (Gain) From Sale of Investments | - | - | - | -0.01 | -0.16 | |
| Stock-Based Compensation | 23.24 | 20.36 | 20.36 | 19.26 | 17.28 | |
| Provision & Write-off of Bad Debts | 4.45 | 3.23 | 3.08 | 1.96 | 1.85 | |
| Other Operating Activities | -3.3 | 0.09 | -7.36 | -6.01 | -3.64 | |
| Change in Accounts Receivable | 1.5 | -0.47 | -33.33 | -30.25 | 6.72 | |
| Change in Accounts Payable | 0.44 | -5.06 | 2.22 | 8.44 | -2.65 | |
| Change in Unearned Revenue | -5.34 | 2.88 | -0.93 | 7.96 | -0.91 | |
| Change in Other Net Operating Assets | 4.86 | -2.92 | 0.36 | 15.52 | -4.6 | |
| Operating Cash Flow | 144.54 | 127.35 | 93.81 | 124.57 | 103.31 | |
| Operating Cash Flow Growth | 13.49% | 35.76% | -24.69% | 20.57% | -4.39% | |
| Capital Expenditures | -6.94 | -16.36 | -12.04 | -6.83 | -4.99 | |
| Investment in Securities | - | - | - | 45 | 10.01 | |
| Investing Cash Flow | -6.94 | -16.36 | -12.04 | 38.18 | 5.02 | |
| Issuance of Common Stock | 5.74 | 2.18 | 2.02 | 3.11 | 6.73 | |
| Repurchase of Common Stock | -12.63 | -34.15 | -168.76 | -22.67 | -55.31 | |
| Common Dividends Paid | -58.21 | -54.04 | -49.24 | -43.2 | -39.78 | |
| Financing Cash Flow | -65.11 | -86.01 | -215.98 | -62.75 | -88.36 | |
| Foreign Exchange Rate Adjustments | -0.74 | 0.71 | -2.02 | 0.17 | 1.11 | |
| Net Cash Flow | 71.75 | 25.69 | -136.23 | 100.16 | 21.09 | |
| Free Cash Flow | 137.6 | 111 | 81.76 | 117.74 | 98.33 | |
| Free Cash Flow Growth | 23.97% | 35.75% | -30.56% | 19.75% | 15.65% | |
| Free Cash Flow Margin | 26.54% | 22.32% | 17.63% | 27.08% | 25.98% | |
| Free Cash Flow Per Share | 2.67 | 2.15 | 1.56 | 2.21 | 1.84 | |
| Cash Income Tax Paid | 39.72 | 38.94 | 40.12 | 27.91 | 20.12 | |
| Levered Free Cash Flow | 107.3 | 79.65 | 76.76 | 92.73 | 72.63 | |
| Unlevered Free Cash Flow | 107.3 | 79.65 | 76.76 | 92.73 | 72.63 | |
| Change in Net Working Capital | -6.59 | 2.85 | 26.67 | -5.73 | -1.44 | |