12 Months Ended December 31, | |||||||||||
2014 | 2013 | 2012 | |||||||||
(dollars in millions) | |||||||||||
Earnings | |||||||||||
Income before income taxes | $ | 87.2 | $ | 84.7 | $ | 74.3 | |||||
Add (deduct): | |||||||||||
Fixed charges | 28.7 | 22.5 | 24.4 | ||||||||
Capitalized interest | (0.5 | ) | (0.2 | ) | (0.1 | ) | |||||
Total Earnings | $ | 115.4 | $ | 107.0 | $ | 98.6 | |||||
Fixed Charges | |||||||||||
Interest expense | $ | 28.2 | $ | 22.3 | $ | 24.1 | |||||
Capitalized interest | 0.5 | 0.2 | 0.1 | ||||||||
Estimate of interest within rental expense | — | — | 0.2 | ||||||||
Total Fixed Charges | $ | 28.7 | $ | 22.5 | $ | 24.4 | |||||
Ratio of Earnings to Fixed Charges | 4.0 | 4.8 | 4.0 | ||||||||