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Stock-Based Compensation - Additional Information (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	May 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	$ 6,500,000	$ 24,100,000	$ 6,500,000
Warrants Exercised Intrinsic Value		17,600,000	12,400,000
Proceeds from Warrant Exercises		9,388,000	$ 5,363,000
Stock Issued During Period Shares Cashless Exercise Of Warrants			117,663
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	159,583		159,583
Accelerated stock-based compensation expense	$ 1,227,890	$ 0	$ 9,562,000
Warrants [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Intrinsic value per share		$ 43.88
Proceeds from Warrant Exercises		$ 3,700,000	$ 3,400,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights	985,626	963,149	985,626
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to unvested stock options		$ 21,100,000
Weighted average recognition period		3 years 1 month 6 days
Intrinsic value per share		$ 43.88
Cost of Revenues [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accelerated stock-based compensation expense			$ 400,000
Selling, General and Administrative Expenses [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accelerated stock-based compensation expense			9,400,000
Engineering And Development [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Accelerated stock-based compensation expense			$ 900,000
Plan 2018 [Member] | Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total shares available for future grant		921,288		3,730,179

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Number of stock issued during the period for cashless exercise of warrants.

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Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for option under share-based payment arrangement.

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The cash inflow associated with the amount received from holders exercising their stock warrants.

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

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