Loan convertible into equity discount rate.

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Loan receivable convertible into preferred stock discount rate.

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Loan receivable term.

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Loans receivable fixed rate of interest.

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Milestone payment payable.

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Amount of decrease in accumulated depreciation, depletion and amortization as a result of sale or disposal of property, plant and equipment.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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The amount by which the fair value of an investment is less than the amortized cost basis or carrying amount of that investment at the balance sheet date and the decline in fair value is deemed to be other than temporary, before considering whether or not such amount is recognized in earnings or other comprehensive income.

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Amount of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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Amount of loan with fixed rate of interest.

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Amount, after allowance for credit loss, of financing receivable, classified as noncurrent.

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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

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Amount of divestiture of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Financial Statement Details - Additional Information (Detail) - USD ($)		12 Months Ended
	Jun. 27, 2016	Dec. 31, 2020	Dec. 31, 2019
Acquired Indefinite-lived Intangible Assets [Line Items]
Proceeds from sales of property, plant and equipment		$ 13,100,000	$ 200,000
Loss on disposal of assets		13,200,000
Amortization expense			600,000
Impairment loss on recognized investments		2,500,000	6,400,000
Laboratory Relocation
Acquired Indefinite-lived Intangible Assets [Line Items]
Cost of propery plant and equipment disposed		1,500,000
Laboratory Relocation \| Other Nonoperating Income (Expense)
Acquired Indefinite-lived Intangible Assets [Line Items]
Accumulated depreciation deletion and amortization sale or disposal of property plant and equipment		700,000
Clinical regulatory and commercial milestones \| Riptide Bioscience
Acquired Indefinite-lived Intangible Assets [Line Items]
Milestone Payment Payable		47,000,000.0
Maximum \| Clinical regulatory and commercial milestones \| Riptide Bioscience
Acquired Indefinite-lived Intangible Assets [Line Items]
Milestone Payment Payable		100,000,000.0
Convertible notes receivable \| Riptide Bioscience
Acquired Indefinite-lived Intangible Assets [Line Items]
Convertible promissory notes receivable principal amount	$ 5,000,000.0
Convertible promissory notes receivable rate of interest	5.00%
Loan receivable term	3 years
Notes receivable outstanding		6,100,000	5,900,000
Interest receivable on convertible notes		1,100,000	900,000
Convertible notes receivable \| Riptide Bioscience \| Qualified financing
Acquired Indefinite-lived Intangible Assets [Line Items]
Loan receivable convertible into preferred stock discount rate	25.00%
Convertible notes receivable \| Riptide Bioscience \| In case of change of control
Acquired Indefinite-lived Intangible Assets [Line Items]
Loan cnvertible into equity discount rate	25.00%
Intellectual Property
Acquired Indefinite-lived Intangible Assets [Line Items]
Indefinitely lived intangible assets		0
Impairment of indefinitely lived intangible assets excluding goodwill		$ 10,700,000	$ 0