| Net Income | 20.66 | 19.23 | 17.19 | 12.83 | 9.33 | 1.37 | |
| Depreciation & Amortization | 0.79 | 0.82 | 0.77 | 0.67 | 1.41 | 1.34 | |
| Loss (Gain) From Sale of Assets | 0 | 0 | 0.01 | -0 | 0.01 | 0.01 | |
| Loss (Gain) From Sale of Investments | - | - | - | -0.01 | -0.02 | -0.02 | |
| Stock-Based Compensation | 2.84 | 2.52 | 2.19 | 1.39 | 1.46 | 3.96 | |
| Provision & Write-off of Bad Debts | -0.15 | -0.09 | 0.21 | 0.1 | 0.01 | 0.03 | |
| Other Operating Activities | 0.27 | -0.61 | -0.99 | 0.11 | 0.64 | 0.3 | |
| Change in Accounts Receivable | 1.18 | 1.76 | 0.84 | -8.24 | -0.58 | 2.69 | |
| Change in Inventory | 1.68 | 3.13 | -7.47 | -1.31 | -0.39 | -0.28 | |
| Change in Accounts Payable | -0.09 | -0.86 | -0.22 | 1.12 | 0.03 | -0.4 | |
| Change in Unearned Revenue | 1.24 | -0.11 | 0.62 | 0.53 | 0.05 | -0.01 | |
| Change in Income Taxes | -0.58 | -0.79 | 0.25 | 3.05 | -0.83 | -1.11 | |
| Change in Other Net Operating Assets | -0.7 | 0.62 | 0.06 | -0.21 | 0.14 | -2.06 | |
| Operating Cash Flow | 27.14 | 25.62 | 13.47 | 10.04 | 11.26 | 5.82 | |
| Operating Cash Flow Growth | 71.49% | 90.30% | 34.08% | -10.80% | 93.52% | -43.15% | |
| Capital Expenditures | -12.93 | -8.01 | -7.44 | -0.82 | -0.48 | -0.44 | |
| Sale (Purchase) of Intangibles | -0.88 | -0.81 | -0.57 | -1.05 | -0.26 | -0.19 | |
| Investment in Securities | - | - | - | 0.5 | 1.39 | 0.88 | |
| Investing Cash Flow | -13.81 | -8.82 | -8.01 | -1.37 | 0.65 | 0.25 | |
| Issuance of Common Stock | 0.03 | 0.03 | 0.18 | 0.15 | 0.62 | 1.73 | |
| Repurchase of Common Stock | -0.77 | -0.69 | -0.61 | -0.29 | -0.6 | -1.21 | |
| Common Dividends Paid | -8.12 | -13.68 | -13.22 | -12.56 | - | - | |
| Financing Cash Flow | -8.87 | -14.34 | -13.66 | -12.71 | 0.02 | 0.52 | |
| Net Cash Flow | 4.46 | 2.47 | -8.2 | -4.04 | 11.93 | 6.59 | |
| Free Cash Flow | 14.21 | 17.62 | 6.02 | 9.22 | 10.78 | 5.37 | |
| Free Cash Flow Growth | 4.61% | 192.46% | -34.66% | -14.44% | 100.50% | -45.52% | |
| Free Cash Flow Margin | 18.30% | 24.06% | 9.19% | 17.30% | 25.77% | 16.95% | |
| Free Cash Flow Per Share | 1.11 | 1.38 | 0.47 | 0.73 | 0.86 | 0.43 | |
| Cash Income Tax Paid | 5.85 | 6.51 | 5.35 | 1.71 | 0.97 | - | |
| Levered Free Cash Flow | 7.1 | 3.94 | 8.4 | 5.89 | 8.16 | 5.88 | |
| Unlevered Free Cash Flow | 7.1 | 3.94 | 8.4 | 5.89 | 8.16 | 5.88 | |
| Change in Working Capital | 2.72 | 3.75 | -5.91 | -5.06 | -1.58 | -1.17 | |