Employee Incentive Plans, STI Compensation Expense Table (Details) (USD $) In Millions | 3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2011 | Sep. 30, 2010 | Sep. 30, 2011 | Sep. 30, 2010 | |
| Compensation charges associated with STI Plans | ||||
| Total costs recorded in connection with STI plans | $ 1.9 | $ 1.7 | $ 6.4 | $ 5.8 |
Cost of products sold [Member] | ||||
| Compensation charges associated with STI Plans | ||||
| Total costs recorded in connection with STI plans | 0.6 | 0.8 | 2.5 | 2.1 |
Selling, administrative, research and development and general [Member] | ||||
| Compensation charges associated with STI Plans | ||||
| Total costs recorded in connection with STI plans | 1.3 | 0.9 | 3.9 | 3.7 |
Fabricated Products [Member] | ||||
| Compensation charges associated with STI Plans | ||||
| Total costs recorded in connection with STI plans | 1.3 | 1.3 | 4.7 | 3.9 |
All Other [Member] | ||||
| Compensation charges associated with STI Plans | ||||
| Total costs recorded in connection with STI plans | $ 0.6 | $ 0.4 | $ 1.7 | $ 1.9 |