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Common Stock - Summary of Common Stock Warrants Outstanding (Detail) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Class Of Stock [Line Items]
Number of shares		0
Warrants
Class Of Stock [Line Items]
Warrants Issuance Date	Aug. 12, 2019
Shares Issuable	1,883
Expiration Date	Feb. 12, 2022
Exercise Price per Share	$ 4.50
Number of shares	1,883

X

- Definition

Warrants expiration date.

+ References

No definition available.

+ Details

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Namespace Prefix:	dvax_
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X

- Definition

Warrants issuance date.

+ References

No definition available.

+ Details

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X

- Definition

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.

+ References

No definition available.

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X

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

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X

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

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X

- Definition

Number of warrants or rights outstanding.

+ References

No definition available.

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