Business Combinations - Summary of Identifiable Intangible Assets Subject to Amortization on Straight-line Basis and Being Amortized over Estimated Useful Lives (Detail) - Corebiome Inc. and Novosanis NV [Member] $ in Thousands	Jan. 04, 2019 USD ($)
Business Acquisition [Line Items]
Acquired intangibles, Amount	$ 8,400
Developed Technology [Member]
Business Acquisition [Line Items]
Acquired intangibles, Amount	$ 5,000
Acquired intangibles, Estimated Useful Life	10 years
Customer Relationships [Member]
Business Acquisition [Line Items]
Acquired intangibles, Amount	$ 2,200
Acquired intangibles, Estimated Useful Life	10 years
Tradenames [Member]
Business Acquisition [Line Items]
Acquired intangibles, Amount	$ 1,200
Acquired intangibles, Estimated Useful Life	8 years 4 months 2 days