Quarterly report pursuant to Section 13 or 15(d)

Significant Accounting Policies - Additional Information (Detail)

v3.21.2
Significant Accounting Policies - Additional Information (Detail)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Jun. 30, 2021
USD ($)
Product
Segment
Jun. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
Subsidiary or Equity Method Investee [Line Items]          
Credit card receivables $ 88.6   $ 88.6   $ 65.2
Bad-debt expense 0.0 $ 0.9 0.2 $ 1.3  
Allowance for doubtful accounts 2.8   2.8   3.3
Allowances for product returns     $ 3.8   $ 3.7
Number of geographic regions | Segment     6    
Number of product categories | Product     5    
Other operating income 0.5 3.3 $ 16.4 12.4  
Loss on extinguishment of debt     24.6 0.0  
Other Expense (Income), Net [Member] | 2026 Notes [Member]          
Subsidiary or Equity Method Investee [Line Items]          
Loss on extinguishment of debt (24.6)   (24.6)    
China [Member]          
Subsidiary or Equity Method Investee [Line Items]          
Other operating income $ 0.5 $ 3.3 $ 16.4 $ 12.4