Significant Accounting Policies - Additional Information (Detail) $ in Millions |
3 Months Ended | 9 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|---|
|
Sep. 30, 2021
USD ($)
|
Sep. 30, 2020
USD ($)
|
Sep. 30, 2021
USD ($)
Product
Segment
|
Sep. 30, 2020
USD ($)
|
Dec. 31, 2020
USD ($)
|
|
| Subsidiary or Equity Method Investee [Line Items] | |||||
| Credit card receivables | $ 72.4 | $ 72.4 | $ 65.2 | ||
| Bad-debt expense | 0.2 | $ 0.8 | 0.4 | $ 2.1 | |
| Allowance for doubtful accounts | 2.9 | 2.9 | 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 | (0.0) | 0.6 | $ 16.4 | 13.0 | |
| 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 | $ 0.6 | $ 13.0 | |||
| X | ||||||||||
- Definition Allowances for product returns. No definition available.
|
| X | ||||||||||
- Definition Number of product categories. No definition available.
|
| X | ||||||||||
- Definition Amount of allowance for credit loss on accounts receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amounts receivable from issuing a card to individuals or businesses that allows someone to make a purchase on borrowed money. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The total amount of other operating income, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|