|
Income Taxes (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2015
|
Mar. 31, 2014
|
|
| Income Taxes | ||
| Income tax provision | $ 9.9 | $ 11.3 |
| Effective income tax rate (as a percent) | 15.30% | 18.30% |
| Decrease in foreign income taxes due to special income tax concession in Singapore | $ 2.3 | $ 1.9 |
| Impact of income tax concession on basic earnings per common share (in dollars per share) | $ 0.03 | $ 0.03 |
| Impact of income tax concession on diluted earnings per common share (in dollars per share) | $ 0.03 | $ 0.03 |