XML 55 R41.htm IDEA: XBRL DOCUMENT v3.20.2
REVENUE AND CONTRACT ACQUISITION COSTS - Summary of Contract Assets and Liabilities (Details) - USD ($)
$ in Millions
Jun. 30, 2020
Dec. 31, 2019
Revenue from Contract with Customer [Abstract]    
Contract assets $ 28.9 $ 20.8
Deferred revenue $ 371.5 $ 365.2