Condensed Consolidated Statements of Stockholders' Equity (USD $)
In Millions, except Per Share data, unless otherwise specified
Total
Common Stock
Capital in Excess of Par Value
Retained Earnings
Treasury Stock
Accumulated Other Comprehensive Loss
Beginning Balance at Dec. 31, 2013 $ 351.0 $ 63.8 $ 177.0 $ 168.9 $ (16.8) $ (41.9)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 7.4     7.4    
Total other comprehensive (loss) income 0.8         0.8
Stock-based payments:            
Stock-based compensation 0.9   0.9      
Stock option exercises and other 0.5 0.1 0.4      
Stockholders' Equity [Abstract]            
Cash dividends declared per common share $ 0.00          
Payments of Ordinary Dividends, Common Stock 0          
Ending Balance at Mar. 31, 2014 360.6 63.9 178.3 176.3 (16.8) (41.1)
Beginning Balance at Dec. 31, 2014 371.6 64.2 187.0 227.0 (27.1) (79.5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income 14.9     14.9    
Total other comprehensive (loss) income (10.0)         (10.0)
Cash dividends declared (3.8)     (3.8)    
Stock-based payments:            
Stock-based compensation 1.1   1.1      
Stock option exercises and other 0.1   0.1      
Issuance of performance shares (2.6) 0.5 (0.5)   (2.6)  
Stock repurchase program (3.6)       (3.6)  
Stockholders' Equity [Abstract]            
Cash dividends declared per common share $ 0.06          
Payments of Ordinary Dividends, Common Stock 3.8          
Ending Balance at Mar. 31, 2015 $ 367.7 $ 64.7 $ 187.7 $ 238.1 $ (33.3) $ (89.5)