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Summary of Disaggregation of Product Revenues from Contracts with Customers by Major Product Line (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 87,462	$ 70,692	$ 163,552	$ 131,326
Product
Disaggregation of Revenue [Line Items]
Revenue	87,432	70,670	163,492	131,282
Royalty and Other Revenue
Disaggregation of Revenue [Line Items]
Revenue	$ 30	$ 22	$ 60	$ 44

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Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

+ References

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-Publisher FASB
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