Amount of cash payroll cost reduced in exchange for a commitment by the Company to provide RSUs.

No definition available.

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- Definition

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

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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.

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No definition available.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

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Stock-Based Compensation - Payroll Reduction Program (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended		12 Months Ended
	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares reserved for issuance	10,015,157			10,015,157
Stock based compensation expense	$ 5,884		$ 507	$ 29,361	$ 1,541
Employee awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense	$ 1,641		$ 507	6,636	$ 1,541
Employee awards \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reduced cash payroll costs						$ 4,000
Shares reserved for issuance		2,356,045				2,356,045
Shares issued						2,356,045
Stock based compensation expense		$ 6,500		$ 1,605