Number of major customers.

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- Definition

Proceeds from trust.

+ References

No definition available.

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- Definition

Amount of allowance for credit loss on accounts receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(4)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

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- Definition

Face amount or stated value per share of common stock.

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-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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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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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

Number of reporting units tested for impairment of goodwill. A reporting unit is an operating segment or one level below an operating segment.

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Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer.

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No definition available.

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Basis of presentation and summary of significant accounting policies - Narrative (Details) $ / shares in Units, $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Mar. 05, 2020 USD ($) $ / shares	Sep. 30, 2021 USD ($) customer $ / shares	Sep. 30, 2020 customer	Sep. 30, 2021 USD ($) customer reportingUnit $ / shares	Sep. 30, 2020 customer	Dec. 31, 2020 USD ($) customer $ / shares
Concentration Risk [Line Items]
Common stock, par value (in dollars per share) \| $ / shares	$ 0.0001	$ 0.0001		$ 0.0001		$ 0.0001
Cash proceeds from trust account \| $	$ 85,100
Allowance for doubtful accounts \| $		$ 254		$ 254		$ 418
Unbilled receivables \| $		$ 4,883		$ 4,883		$ 1,799
Number of reporting units \| reportingUnit				1
Accounts Receivable \| Customer Concentration Risk
Concentration Risk [Line Items]
Number of major customers \| customer				2		3
Unbilled Receivables \| Customer Concentration Risk
Concentration Risk [Line Items]
Number of major customers \| customer				2		3
Sales \| Customer Concentration Risk
Concentration Risk [Line Items]
Number of major customers \| customer		2	2	2	2
Minimum
Concentration Risk [Line Items]
Intangible assets useful life				2 years
Maximum
Concentration Risk [Line Items]
Intangible assets useful life				12 years