Annual report pursuant to Section 13 and 15(d)

Employee Costs (Details)

v3.7.0.1
Employee Costs (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Compensation Related Costs [Abstract]      
Wages, salaries and incentive compensation $ 243.4 $ 236.4 $ 221.0
Insurance and other benefit costs 27.7 25.2 28.8
Payroll taxes 18.9 19.2 18.9
Defined-benefit pension plan and defined-contribution plan expenses, net 16.4 21.1 7.9
Stock-based compensation 6.7 6.1 5.9
Total $ 313.1 $ 308.0 $ 282.5