XML 30 R51.htm IDEA: XBRL DOCUMENT v3.20.1
Contract Assets and Contract Liabilities (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Revenue from Contract with Customer [Abstract]      
Contract assets - current $ 40.9   $ 38.4
Contract assets - long-term 21.0   21.6
Deferred revenue - current (224.2)   (246.4)
Deferred revenue - long-term (134.9)   $ (147.0)
Revenue recognized that was included in deferred revenue at the beginning of the period $ 81.0 $ 98.0