Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans (Details)

v2.4.1.9
Employee Benefit Plans (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Compensation and Retirement Disclosure [Abstract]      
Company contributions $ 26.4us-gaap_DefinedBenefitPlanContributionsByEmployer $ 20.6us-gaap_DefinedBenefitPlanContributionsByEmployer $ 16.9us-gaap_DefinedBenefitPlanContributionsByEmployer
Deferred compensation plan amounts owed $ 42.7us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent $ 36.6us-gaap_DeferredCompensationLiabilityClassifiedNoncurrent