Quarterly report pursuant to Section 13 or 15(d)

Revenue, Contract Assets and Liabilities and Other Contract Matters - Summary of Contract with Customer, Asset and Liability (Parenthetical) (Details)

v3.20.1
Revenue, Contract Assets and Liabilities and Other Contract Matters - Summary of Contract with Customer, Asset and Liability (Parenthetical) (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Revenue From Contract With Customer [Abstract]      
Contract with customer, liability, revenue recognized $ 17.0 $ 13.5  
Contract with customer, liability, accrued contract losses, current $ 4.6   $ 6.4