XML 76 R62.htm IDEA: XBRL DOCUMENT v3.20.2

Subsequent Event - Additional Information (Detail) - USD ($) $ in Millions	Dec. 31, 2020	Jul. 31, 2020
Asset Purchase Agreement | Subsequent Event
Subsequent Event [Line Items]
Upfront payment receivable	$ 4	$ 5

X

- Definition

Upfront payment receivable.

+ References

No definition available.

+ Details

Name:	dvax_UpfrontPaymentReceivable
Namespace Prefix:	dvax_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_TypeOfArrangementAxis=dvax_AssetPurchaseAgreementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: