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Summary of Significant Accounting Policies (Tables)
6 Months Ended
Jun. 30, 2021
Accounting Policies [Abstract]  
Schedule of Inventory Inventories are stated at the lower of cost and net realizable value, determined by the first-in, first-out method, and consist of the following:
June 30,December 31,
(in millions)20212020
Finished goods$160.6 $170.2 
Work-in-process10.6 12.6 
Raw materials and supplies153.0 129.3 
 $324.2 $312.1 
Changes in Accrued Sales Returns
The Company had the following activity for sales returns from December 31, 2020 to June 30, 2021:
(in millions)
Balance as of December 31, 2020$44.9 
Amounts accrued73.4 
Returns charged to accrual(66.8)
Balance as of June 30, 2021$51.5 
Summary of Warranty Activity
The Company had the following activity for its accrued warranty expense from December 31, 2020 to June 30, 2021:
(in millions)
Balance as of December 31, 2020$44.2 
Amounts accrued13.4 
Warranties charged to accrual(11.8)
Balance as of June 30, 2021$45.8 
Schedule of New Accounting Pronouncements and Changes in Accounting Principles
The Company had the following activity for its allowance for credit losses from December 31, 2020 to June 30, 2021:
(in millions)
Balance as of December 31, 2020
$71.6 
Amounts accrued2.9 
Write-offs charged against the allowance(3.3)
Balance as of June 30, 2021
$71.2