CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $)
In Millions, except Share data | 3 Months Ended | 9 Months Ended |
|---|
Sep. 30, 2011 | Sep. 30, 2010 | Sep. 30, 2011 | Sep. 30, 2010 |
|---|
| CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) [Abstract] | | | | |
| Sales | $ 229.1 | $ 176.0 | $ 799.6 | $ 712.6 |
| Shipping and handling cost | 56.1 | 38.8 | 214.9 | 177.7 |
| Product cost | 102.0 | 83.8 | 361.8 | 327.0 |
| Gross profit | 71.0 | 53.4 | 222.9 | 207.9 |
| Selling, general and administrative expenses | 22.4 | 20.7 | 67.6 | 64.1 |
| Operating earnings | 48.6 | 32.7 | 155.3 | 143.8 |
| Other (income) expense: | | | | |
| Interest expense | 5.0 | 5.3 | 15.9 | 16.5 |
| Other, net | (1.7) | 1.3 | (1.5) | 3.1 |
| Earnings before income taxes | 45.3 | 26.1 | 140.9 | 124.2 |
| Income tax expense | 10.7 | 6.8 | 35.8 | 34.7 |
| Net earnings | $ 34.6 | $ 19.3 | $ 105.1 | $ 89.5 |
| Basic net earnings per common share (in dollars per share) | $ 1.04 | $ 0.58 | $ 3.14 | $ 2.68 |
| Diluted net earnings per common share (in dollars per share) | $ 1.03 | $ 0.58 | $ 3.14 | $ 2.68 |
| Weighted-average common shares outstanding (in thousands): | | | | |
| Basic (in shares) | 32,906 | 32,774 | 32,877 | 32,727 |
| Diluted (in shares) | 32,931 | 32,785 | 32,907 | 32,740 |
| Cash dividends per share (in dollars per share) | $ 0.45 | $ 0.39 | $ 1.35 | $ 1.17 |