XML 26 R47.htm IDEA: XBRL DOCUMENT v2.4.0.8
Income Taxes (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Income Tax Disclosure [Abstract]    
Effective tax rate (in hundredths) 27.60% 22.00%
Discrete tax benefit, R&D credit   $ 1.3