Cash equivalents maturity period.

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Contract with customers expected period of payment to be received.

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Organization consolidation and presentation of financial statements disclosure.

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Percentage of long lived assets.

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Percentage of revenue earned.

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Accumulated adjustment, net of tax, that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency from the functional currency of the reporting entity, net of reclassification of realized foreign currency translation gains or losses.

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Cash includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the customer may deposit additional funds at any time and effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid Investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months. Short-term investments, exclusive of cash equivalents, generally consist of marketable securities intended to be sold within one year (or the normal operating cycle if longer) and may include trading securities, available-for-sale securities, or held-to-maturity securities (if maturing within one year), as applicable.

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Description of risks that arise due to the volume of business transacted with a particular customer. At a minimum, the description informs financial statement users of the general nature of the risk, but excludes "Information about Major Customers" that may be disclosed elsewhere (for instance, segment disclosures).

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount before tax of foreign currency transaction realized gain (loss) recognized in the income statement.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value.

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Amount of valuation reserve for inventory.

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Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Amount of lessee's right to use underlying asset under operating lease.

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The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

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Summary of Significant Accounting Policies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2018 USD ($) Segment	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jan. 01, 2019 USD ($)
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Number of operating segment \| Segment	1
Cash, cash equivalents and marketable securities	$ 145,500,000
Impairment of Intangible assets	0	$ 0	$ 0
Impairments of tangible assets	0	0	0
Goodwill impairments	$ 0	$ 0	$ 0
Federal corporate income tax rate	21.00%
Cost of Sales - Product
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Inventory reserves	$ 1,000,000
Credit Concentration Risk
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Concentration risk, customer	three largest customers
Trade Receivable \| Credit Concentration Risk
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Concentration risk, percentage	71.00%
Product \| Revenue \| Credit Concentration Risk
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Concentration risk, percentage	68.00%
United States
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Percentage of revenue earned	83.00%	90.00%	92.00%
Percentage of long lived assets	24.00%	15.00%
Maximum
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Cash equivalents original maturity period	3 months
Expected period of payment to be received	1 year
Maximum \| Subsequent Event
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Right-of-use asset for operating leases				$ 40,000,000
Lease Liabilities for operating leases				40,000,000
Minimum \| Subsequent Event
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Right-of-use asset for operating leases				34,000,000
Lease Liabilities for operating leases				$ 34,000,000
Dynavax GmbH
Organization Consolidation And Presentation Of Financial Statements Disclosure [Line Items]
Currency translation adjustments	$ (1,100,000)	$ 2,800,000	$ (700,000)
Currency transaction gain (loss)	$ 300,000	$ (600,000)	$ 200,000