Number of equity compensation plans.

No definition available.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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- Definition

Aggregate number of common shares reserved for future issuance.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
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- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

+ References

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-Paragraph 1
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- Definition

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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- Definition

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).

+ References

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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.

+ References

No definition available.

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- Definition

Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

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

+ References

No definition available.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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-Publisher FASB
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- Definition

Percentage of vesting of award under share-based payment arrangement.

+ References

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- Definition

Number of options vested.

+ References

No definition available.

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Share-Based Compensation - Additional Information (Detail)	3 Months Ended		12 Months Ended
	Mar. 31, 2021 USD ($) Plan $ / shares shares	Mar. 31, 2020 $ / shares	Dec. 31, 2019 shares	Dec. 31, 2020 shares
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of equity compensation plans \| Plan	2
Increase in shares of common stock for issuance	29,663,946			29,260,247
Share based compensation options granted	1,019,365
Number of options vested	0
Compensation expense recognized \| $	$ 0
Weighted average grant-date fair value of awards granted \| $ / shares	$ 14.57	$ 6.38
Number of shares authorized for issuance	5,549,873
Common stock reserved for issuance	495,396
Performance-based Vesting Criteria [Member] \| Stock Option [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share based compensation options granted			100,000
Options vesting period			2 years
Performance-based Vesting Criteria [Member] \| Restricted Stock Units (RSUs) [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Granted shares in addition to stock option			50,000
Options vesting period			2 years
Performance-based Vesting Criteria 1 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of incentive units vesting			25.00%
Performance-based Vesting Criteria 2 [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of incentive units vesting			50.00%
2019 Inducement Plan [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Increase in shares of common stock for issuance	700,000