Organization, basis of presentation and summary of significant policies - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Mar. 31, 2021	Dec. 31, 2020
Accounting Policies [Abstract]
Common Stock, par value (in usd per share)	$ 0.001	$ 0.001
Preferred Stock, par value (in usd per share)	$ 0.001	$ 0.001
Threshold limit for liquid investments	90 days
Inventory obsolescence reserved	$ 2,623	$ 2,254
Accounts receivable, after allowance for credit loss	$ 48,300
Percent of accounts receivable outstanding for 30 days	96.00%

Accounts Receivable, Allowance for Credit Loss, Percentage Of Accounts Receivable Outstanding Less Than Thirty Days

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- Definition

Threshold Limit For Investments Of A Liquid Nature

+ References

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- References

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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

+ 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(3))
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- Definition

Face amount or stated value per share of common stock.

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- Definition

Amount of valuation reserve for inventory.

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- Definition

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

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-Name Accounting Standards Codification
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