Aggregate number of common shares reserved for future issuance.

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The value of the financial instrument(s) that the original debt is being converted into 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.

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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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- Definition

The cash inflow from issuance of preferred stocks identified as being convertible into another form of financial instrument, typically the entity's common stock.

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The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Gross number of share options (or share units) granted during the period.

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No definition available.

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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- 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.

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Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Millions			3 Months Ended
	Apr. 04, 2022	Jan. 23, 2022	Mar. 31, 2022
Subsequent Event [Line Items]
Number of remaining securities available for future issuance (in shares)			6,194,000
Options granted (in usd per share)			$ 0
Restricted Stock Units (RSUs)
Subsequent Event [Line Items]
Granted (in shares)			808,000
Award vesting period			4 years
Series B Preferred Stock
Subsequent Event [Line Items]
Proceeds from issuance of convertible preferred stock		$ 225.0
Subsequent event \| 2022 Inducement Equity Incentive Plan
Subsequent Event [Line Items]
Number of remaining securities available for future issuance (in shares)	9,500,000
Option granted (in shares)	8,100,000
Options granted (in usd per share)	$ 3.99
Award vesting period	4 years
Subsequent event \| 2022 Inducement Equity Incentive Plan \| Restricted Stock Units (RSUs)
Subsequent Event [Line Items]
Granted (in shares)	1,400,000
Subsequent event \| Series B Preferred Stock
Subsequent Event [Line Items]
Proceeds from issuance of convertible preferred stock	$ 225.0
Shares sold (in shares)	225,000
Debt conversion, converted instrument, shares issued	30,559
Debt conversion, converted instrument, amount	$ 25.5