Annual report pursuant to Section 13 and 15(d)

Employee Benefit Plans (Details)

v3.3.1.900
Employee Benefit Plans (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Compensation and Retirement Disclosure [Abstract]      
Company contributions $ 30.3 $ 26.4 $ 20.6
Deferred Compensation Liability, Current and Noncurrent 48.7 42.7  
Deferred compensation plan amounts owed $ 44.5 $ 41.2