XML 48 R36.htm IDEA: XBRL DOCUMENT v3.20.2
Summary of Significant Accounting Policies - Warranty Activity (Details) - Warranty Reserves
$ in Millions
6 Months Ended
Jun. 30, 2020
USD ($)
Movement in Standard Product Warranty Accrual [Roll Forward]  
Beginning balance $ 41.6
Amounts accrued 9.4
Warranties charged to accrual (10.6)
Ending balance $ 40.4