| Net Income | 404.39 | 282.81 | 245.37 | 181.85 | 145.38 | |
| Depreciation & Amortization | 29.25 | 26.33 | 22.34 | 21.12 | 19.53 | |
| Stock-Based Compensation | 25.51 | 20.52 | 21.41 | 14.47 | 13.78 | |
| Other Operating Activities | -7.52 | -2.77 | -7.13 | -20.82 | 13.72 | |
| Change in Accounts Receivable | 2.24 | -48.28 | -66.92 | -24.98 | -5.53 | |
| Change in Accounts Payable | -2.97 | 1.05 | 6.43 | 1.87 | -2.6 | |
| Change in Unearned Revenue | 150.73 | 97.13 | 118.09 | 88.98 | 63.41 | |
| Change in Other Net Operating Assets | 7.18 | 56.59 | 48.46 | 0.85 | 10.98 | |
| Operating Cash Flow | 608.82 | 433.37 | 388.05 | 263.33 | 258.68 | |
| Operating Cash Flow Growth | 40.48% | 11.68% | 47.36% | 1.80% | 28.14% | |
| Capital Expenditures | -36.55 | -36.65 | -36.88 | -28.27 | -31.34 | |
| Other Investing Activities | 8.24 | 2.02 | -1.86 | -3.09 | 0.13 | |
| Investing Cash Flow | -28.31 | -34.63 | -38.74 | -31.36 | -31.21 | |
| Short-Term Debt Issued | - | 105 | 324.2 | - | - | |
| Total Debt Issued | - | 105 | 324.2 | - | - | |
| Short-Term Debt Repaid | - | -155 | -274.2 | - | - | |
| Total Debt Repaid | - | -155 | -274.2 | - | - | |
| Net Debt Issued (Repaid) | - | -50 | 50 | - | - | |
| Issuance of Common Stock | 15.86 | 11.38 | 22.07 | 17.64 | 15.99 | |
| Repurchase of Common Stock | -169.87 | -144.02 | -847.85 | -62.1 | -98.27 | |
| Financing Cash Flow | -154.01 | -182.64 | -775.78 | -44.45 | -82.28 | |
| Foreign Exchange Rate Adjustments | -2.51 | 1.08 | -6.57 | -3.97 | 0.67 | |
| Net Cash Flow | 423.99 | 217.18 | -433.04 | 183.54 | 145.85 | |
| Free Cash Flow | 572.27 | 396.73 | 351.17 | 235.06 | 227.34 | |
| Free Cash Flow Growth | 44.25% | 12.97% | 49.40% | 3.40% | 23.58% | |
| Free Cash Flow Margin | 27.13% | 21.04% | 24.05% | 20.58% | 24.55% | |
| Free Cash Flow Per Share | 17.88 | 12.46 | 10.43 | 6.24 | 6.03 | |
| Cash Interest Paid | 0.17 | 3.06 | 2.94 | 0.12 | 0.1 | |
| Cash Income Tax Paid | 83.57 | 76.35 | 50.16 | 56.24 | 23.11 | |
| Levered Free Cash Flow | 464.59 | 346.29 | 296.41 | 214.38 | 187.79 | |
| Unlevered Free Cash Flow | 464.59 | 346.6 | 298.23 | 214.45 | 187.79 | |
| Change in Net Working Capital | -167.08 | -125.89 | -117.17 | -83 | -81.42 | |