| | 2008 | 2007 | 2006 | 2005 | 2004 |
| Period End Date | 12/31/2008 | 12/31/2007 | 12/31/2006 | 12/31/2005 | 12/31/2004 |
| Period Length | 12 Months | 12 Months | 12 Months | 12 Months | 12 Months |
| Stmt Source | 10-K | 10-K | 10-K | 10-K | 10-K |
| Stmt Source Date | 02/27/2009 | 02/27/2009 | 02/27/2008 | 02/27/2008 | 03/03/2005 |
| Stmt Update Type | Updated | Restated | Reclassified | Reclassified | Updated |
| | | | | | |
| Revenue | 942.69 | 730.1 | 753.13 | 680.13 | 524.1 |
| Other Revenue, Total | 3.11 | 2.07 | 8.86 | 2.67 | 6.31 |
| Total Revenue | 945.79 | 732.17 | 761.99 | 682.8 | 530.41 |
| | | | | | |
| Cost of Revenue, Total | 192.29 | 158.99 | 158.17 | 148.93 | 128.8 |
| Gross Profit | 750.4 | 571.11 | 594.96 | 531.2 | 395.3 |
| | | | | | |
| Selling/General/Administrative Expenses, Total | 74.19 | 50.78 | 58.17 | 37.65 | 34.74 |
| Research & Development | 31.2 | 39.77 | 49.4 | 61.84 | 48.13 |
| Depreciation/Amortization | 185.4 | 143.95 | 128.98 | 108.46 | 103.34 |
| Interest Expense (Income), Net Operating | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Unusual Expense (Income) | 24.16 | 10.21 | -217.01 | 12.89 | 13.73 |
| Other Operating Expenses, Total | 66.54 | 53.78 | 55.35 | 54.29 | 41.02 |
| Operating Income | 372.01 | 274.69 | 528.95 | 258.73 | 160.65 |
| | | | | | |
| Interest Income (Expense), Net Non-Operating | -36.39 | -17.16 | -18.44 | -22.5 | -22.03 |
| Gain (Loss) on Sale of Assets | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Other, Net | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Income Before Tax | 335.62 | 257.53 | 510.51 | 236.23 | 138.62 |
| | | | | | |
| Income Tax - Total | 124.33 | 90.11 | 189.33 | 87.79 | 50.25 |
| Income After Tax | 211.29 | 167.42 | 321.18 | 148.45 | 88.38 |
| | | | | | |
| Minority Interest | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Equity In Affiliates | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| U.S. GAAP Adjustment | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Net Income Before Extra. Items | 211.29 | 167.42 | 321.18 | 148.45 | 88.38 |
| | | | | | |
| Total Extraordinary Items | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Net Income | 211.29 | 167.42 | 321.18 | 148.45 | 88.38 |
| | | | | | |
| | | | | | |
 Total Adjustments to Net Income | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Preferred Dividends | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | | General Partners' Distributions | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
|
| | | | | | |
| Basic Weighted Average Shares | 100.74 | 96.98 | 96.8 | 97.71 | 97.47 |
| Basic EPS Excluding Extraordinary Items | 2.1 | 1.73 | 3.32 | 1.52 | 0.91 |
| Basic EPS Including Extraordinary Items | 2.1 | 1.73 | 3.32 | 1.52 | 0.91 |
| | | | | | |
| Diluted Weighted Average Shares | 101.73 | 98.13 | 98.6 | 99.45 | 98.68 |
| Diluted EPS Excluding Extrordinary Items | 2.08 | 1.71 | 3.26 | 1.49 | 0.9 |
| Diluted EPS Including Extraordinary Items | 2.08 | 1.71 | 3.26 | 1.49 | 0.9 |
| | | | | | |
| Dividends per Share - Common Stock Primary Issue | 0.12 | 0.11 | 0.08 | 0.07 | 0.05 |
| Gross Dividends - Common Stock | 12.07 | 10.67 | 7.75 | 7.21 | 5.21 |
| Depreciation, Supplemental | 185.4 | 143.95 | 128.98 | 108.46 | 103.34 |
| | | | | | |
| Normalized EBITDA | 581.58 | 428.85 | 440.91 | 380.08 | 277.72 |
| Normalized EBIT | 396.18 | 284.9 | 311.93 | 271.62 | 174.38 |
| Normalized Income Before Tax | 359.79 | 267.74 | 293.49 | 249.13 | 152.35 |
| Normalized Income After Taxes | 226.5 | 174.06 | 184.65 | 156.55 | 97.13 |
| Normalized Income Available to Common | 226.5 | 174.06 | 184.65 | 156.55 | 97.13 |
| | | | | | |
| Basic Normalized EPS | 2.25 | 1.79 | 1.91 | 1.6 | 1.0 |
| Diluted Normalized EPS | 2.23 | 1.77 | 1.87 | 1.57 | 0.98 |
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