Sale of Stock, Number Of Remaining Unissued Shares

No definition available.

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Namespace Prefix:	nvax_
Data Type:	xbrli:monetaryItemType
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- Definition

Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(9))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1

+ Details

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- Definition

Cash received on stock transaction after deduction of issuance costs.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

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- Definition

Amount of stock repurchase plan authorized.

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- 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.

+ Details

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- Details

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- Details

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Stockholders' Equity (Deficit) (Details) - USD ($) $ in Thousands, shares in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022	Jun. 30, 2021
Stockholders' Equity
Prepaid expenses and other current assets	$ 192,903	$ 192,903		$ 237,147
Common Stock \| June 2021 Sales Agreement
Stockholders' Equity
Authorized amount					$ 500,000
Sale of stock, number of shares issued in transaction (in shares)	7.9	7.9	2.2
Sale of stock, consideration received on transaction	$ 68,000	$ 68,000	$ 179,000
Remaining unissued capital	$ 249,000	$ 249,000