Subsequent Events - Additional Information (Detail) - USD ($) $ in Millions |
9 Months Ended | 12 Months Ended |
|---|---|---|
Sep. 30, 2021 |
Dec. 31, 2020 |
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| Subsequent Event [Line Items] | ||
| Debt Conversion, Original Debt, Amount | $ 10.0 | $ 10.0 |
| Debt Conversion Original Debt Accrued Interest | $ 8.0 | $ 8.0 |
| X | ||||||||||
- Definition Debt conversion original debt accrued interest. No definition available.
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| X | ||||||||||
- Definition The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. No definition available.
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