Description of Business, the Spin-off and Basis of Presentation - Acquired intangible asset and amortization basis (Details) |
9 Months Ended |
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Sep. 30, 2021 | |
| Product/Technology Related | |
| Acquired Finite-Lived Intangible Assets [Line Items] | |
| Expected life | 3 years |
| Marketing-Related | |
| Acquired Finite-Lived Intangible Assets [Line Items] | |
| Expected life | 4 years |
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- 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.
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- Definition Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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