| Net Income | 31.25 | 30.56 | 48.22 | 88.33 | 155.9 | 90.4 | |
| Depreciation & Amortization | 21.8 | 22.06 | 22.38 | 25.79 | 26.15 | 27.58 | |
| Loss (Gain) From Sale of Assets | - | - | -0.01 | -0.04 | -0.13 | -0.05 | |
| Stock-Based Compensation | 4.41 | 4.34 | 3.99 | 1.67 | 8.28 | 6.13 | |
| Other Operating Activities | -2.71 | -4.29 | -4.56 | -5.07 | 1.95 | 3.86 | |
| Change in Accounts Receivable | -1.67 | -7.28 | 5.59 | -8.41 | 0.84 | -5.24 | |
| Change in Inventory | -2.66 | 2.91 | -16.13 | -21.64 | -15.73 | 10.62 | |
| Change in Accounts Payable | 3.57 | 3.79 | -4.41 | -0.64 | -0.39 | 7.95 | |
| Change in Unearned Revenue | 0.76 | -0.15 | -0.88 | 1.03 | -0.08 | -9.54 | |
| Change in Income Taxes | - | - | -1.17 | 1.17 | - | -1.22 | |
| Change in Other Net Operating Assets | 4.57 | 3.56 | -19.12 | -4.96 | -4.45 | 13.31 | |
| Operating Cash Flow | 59.3 | 55.5 | 33.9 | 77.23 | 172.34 | 143.81 | |
| Operating Cash Flow Growth | 64.91% | 63.72% | -56.10% | -55.19% | 19.84% | 190.01% | |
| Capital Expenditures | -20.16 | -20.82 | -15.8 | -27.73 | -28.78 | -52.55 | |
| Sale of Property, Plant & Equipment | - | - | 0.01 | 0.1 | 0.2 | 0.18 | |
| Investment in Securities | 7.33 | 7.03 | 56.65 | 40.84 | -78.96 | 8.48 | |
| Investing Cash Flow | -12.83 | -13.79 | 40.86 | 13.21 | -107.54 | -43.89 | |
| Repurchase of Common Stock | -34.36 | -35.03 | -13.97 | -3.59 | -4.8 | -1.3 | |
| Common Dividends Paid | -11.74 | -11.83 | -22.45 | -42.72 | -59.1 | -26.42 | |
| Financing Cash Flow | -46.1 | -46.86 | -124.76 | -46.31 | -63.91 | -115.19 | |
| Net Cash Flow | 0.37 | -5.15 | -50 | 44.13 | 0.9 | -15.27 | |
| Free Cash Flow | 39.15 | 34.68 | 18.11 | 49.5 | 143.56 | 91.26 | |
| Free Cash Flow Growth | 95.44% | 91.57% | -63.42% | -65.52% | 57.31% | 211.57% | |
| Free Cash Flow Margin | 7.32% | 6.48% | 3.33% | 8.31% | 19.65% | 16.04% | |
| Free Cash Flow Per Share | 2.29 | 2.01 | 1.02 | 2.78 | 8.08 | 5.14 | |
| Cash Income Tax Paid | 10.6 | 10.6 | 26 | 28.7 | 49.5 | 30.6 | |
| Levered Free Cash Flow | 30.22 | 24.77 | -72.73 | 119.7 | 113.48 | 67.23 | |
| Unlevered Free Cash Flow | 30.29 | 24.83 | -72.61 | 119.86 | 113.58 | 67.35 | |
| Change in Net Working Capital | -2.89 | 1.51 | 116.04 | -55.75 | 18.95 | -11.26 | |