CONVERTIBLE NOTES - Nanyang Convertible Note - Additional Information (Details) - BD1 Exchange Agreement - Nanyang Investment Management	Aug. 13, 2021 USD ($) $ / shares shares
Short Term Debt [Line Items]
Conversion price (in dollars per share) \| $ / shares	$ 0.0001
Debt conversion, converted instrument, shares issued \| shares	6,000,000,000
Ownership of outstanding stock, percentage	4.99%
Unsecured Convertible Notes
Short Term Debt [Line Items]
Remaining principal amount of notes outstanding \| $	$ 600,000
Debt instrument, maturity date	Dec. 18, 2025

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The number of shares issued in exchange for 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 payments in the period.

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The price per share of the conversion feature embedded in the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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