SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Capitalized Software (Details) |
9 Months Ended |
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Sep. 30, 2021 | |
| Capitalized Software | |
| Finite-Lived Intangible Assets [Line Items] | |
| Expected economic life of the underlying software | 3 years |
| X | ||||||||||
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. No definition available.
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| 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.
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| X | ||||||||||
- Details
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