Annual report pursuant to Section 13 and 15(d)

Revenue Recognition Contracts with Customer (Details)

v3.10.0.1
Revenue Recognition Contracts with Customer (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2018
Jan. 01, 2018
Revenue from Contract with Customer [Abstract]    
Contract with Customer, Liability $ 178.7 $ 170.8
Contract with Customer, Liability, Revenue Recognized 76.8  
Contract with Customer, Liability, Cumulative Catch-up Adjustment to Revenue, Change in Estimate of Transaction Price $ 13.5