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Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2022
Accounting Policies [Abstract]  
Schedule of Inventory, Current 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:
December 31,
(in millions)20222021
Finished goods$352.9 $297.8 
Work-in-process19.4 11.4 
Raw materials and supplies182.7 154.7 
$555.0 $463.9 
Schedule of Property, Plant and Equipment Property, plant and equipment are carried at cost at acquisition date and are depreciated using the straight-line method over their estimated useful lives as follows:
Estimated
Useful Lives
(in years)
Buildings
25-30
Computer equipment and software
3-7
Leasehold improvements
4-7
Machinery and equipment
3-7
Office furniture and fixtures
5-7
 
The Company records depreciation and amortization in cost of sales for long-lived assets used in the manufacturing process, and within each line item of operating expenses for all other long-lived assets. Leasehold improvements are amortized over the shorter of the life of the lease or seven years. Assets under finance leases are included within property, plant and equipment and represent non-cash investing activities.

Property, plant and equipment, net consisted of the following:
December 31,
(in millions)20222021
Machinery and equipment$533.9 $481.8 
Land and buildings437.8 386.1 
Computer equipment and software231.1 209.3 
Furniture and fixtures83.2 75.5 
Construction in progress236.9 88.2 
Total property, plant and equipment1,522.9 1,240.9 
Accumulated depreciation(731.8)(657.4)
Total property, plant and equipment, net$791.1 $583.5 
Changes in Accrued Sales Returns
The Company had the following activity for accrued sales returns from December 31, 2020 to December 31, 2022:
 (in millions)
Balance as of December 31, 2020$44.9 
Amounts accrued142.2 
Returns charged to accrual(137.3)
Balance as of December 31, 202149.8 
Amounts accrued146.6 
Returns charged to accrual(155.9)
Balance as of December 31, 2022$40.5 
Warranty Activity
The Company had the following activity for its accrued warranty expense from December 31, 2020 to December 31, 2022:
 (in millions)
Balance as of December 31, 2020$44.2 
Amounts accrued21.4 
Warranties charged to accrual(21.7)
Balance as of December 31, 202143.9 
Amounts accrued17.0 
Warranties charged to accrual(19.3)
Balance as of December 31, 2022$41.6 
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 December 31, 2022.
(in millions)
Balance as of December 31, 2020
$71.6 
Amounts accrued2.7 
Write-offs charged against the allowance(12.2)
Balance as of December 31, 2021
62.1 
Amounts accrued 6.7 
Write-offs charged against the allowance(6.4)
Balance as of December 31, 2022
$62.4 
Schedule of Long-term Debt Instruments :
Fair Value
(in millions)December 31, 2022December 31, 2021
2029 Senior Notes$672.7 $816.9 
2031 Senior Notes627.1 803.7