Summary of Significant Accounting Policies - Additional Information (Details) - USD ($)	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Significant Accounting Policies [Line Items]
Restricted cash	$ 1,460,000	$ 1,460,000
Letters of credit drawn, amount	0	0
Allowance for doubtful accounts	0	0
Inventory lower of cost and net realizable value adjustment	883,000	150,000	$ 0
Asset retirement obligation	1,000,000
Impairment loss recognized	$ 0	0	0
Service contract term (in months)	12 months
Capitalized costs associated with development of software	$ 0
Deferred commission	3,300,000	2,400,000
Asset Retirement Obligation
Significant Accounting Policies [Line Items]
Accretion expenses	$ 105,000	$ 63,000	$ 43,000
Software
Significant Accounting Policies [Line Items]
Property and equipment, useful life (in years)	3 years
Minimum
Significant Accounting Policies [Line Items]
Property and equipment, useful life (in years)	2 years
Maximum
Significant Accounting Policies [Line Items]
Property and equipment, useful life (in years)	15 years
Collateral for Letters of Credit
Significant Accounting Policies [Line Items]
Restricted cash	$ 1,500,000

Amount of allowance for credit loss on accounts receivable.

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The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability.

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The carrying amount of capitalized computer software costs net of accumulated amortization as of the balance sheet date.

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Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer; classified as current.

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The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Service contract term.

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Significant accounting policies.

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