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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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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STOCK INCENTIVE PLANS - Stock-based Compensation (Details) - USD ($) $ in Thousands		1 Months Ended	3 Months Ended	12 Months Ended
	Nov. 09, 2021	Nov. 30, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Payment Arrangement, Expense
Stock based compensation expense				$ 14,574	$ 17,837	$ 3,487
Software Development
Share-based Payment Arrangement, Expense
Stock based compensation expense				600
Chief Executive Officer
Share-based Payment Arrangement, Expense
Stock based compensation expense			$ 11,100
Cost of revenue, net
Share-based Payment Arrangement, Expense
Stock based compensation expense				4,115	2,272	846
Research and development
Share-based Payment Arrangement, Expense
Stock based compensation expense				1,617	2,469	741
General and administrative
Share-based Payment Arrangement, Expense
Stock based compensation expense				7,356	12,648	1,496
Sales and marketing
Share-based Payment Arrangement, Expense
Stock based compensation expense				1,486	448	404
Secondary sales of common stock
Share-based Payment Arrangement, Expense
Stock based compensation expense				0	15,255	0
Stock options
Share-based Payment Arrangement, Expense
Stock based compensation expense				$ 3,425	2,582	3,487
Vesting period (years)				4 years
Restricted stock units
Share-based Payment Arrangement, Expense
Stock based compensation expense	$ 2,900			$ 11,149	$ 0	$ 0
Vesting period (years)				8 years
Service period (in years)		1 year		1 year
Restricted stock units \| Member of Audit Committee
Share-based Payment Arrangement, Expense
Stock based compensation expense				$ 100
Service period (in years)				3 years