CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 191,458	$ 240,634
Marketable securities	527,882	494,450
Restricted cash	0	10,876
Accounts receivable	18,739	106,446
Inventory	10,006	11,545
Prepaid expenses and other current assets	23,013	26,815
Assets held for sale	0	87,510
Total current assets	771,098	978,276
Property and equipment, net	38,133	44,800
Right-of-use asset, net	19,842	22,897
Goodwill	112,542	113,462
Other non-current assets	13,960	17,077
Total assets	955,575	1,176,512
Current liabilities:
Accounts payable	22,936	24,578
Accrued expenses	81,424	107,165
Deferred revenue	86,577	140,053
Current portion of finance lease liabilities	4,110	2,507
Other current liabilities	135,527	137,778
Liabilities held for sale	0	47,869
Total current liabilities	330,574	459,950
Deferred revenue	356,755	358,943
Long-term debt	291,490	244,213
Non-current finance lease liabilities	1,719	2,091
Other non-current liabilities	165,744	239,068
Total liabilities	1,146,282	1,304,265
Commitments and contingencies (Note 15)
Preferred stock, $0.01 par value, 2,000,000 shares authorized at June 30, 2026 and December 31, 2025; no shares issued and outstanding at June 30, 2026 and December 31, 2025	0	0
Stockholders' deficit:
Common stock, $0.01 par value, 600,000,000 shares authorized at June 30, 2026 and December 31, 2025; 168,165,416 shares issued and 164,815,529 shares outstanding at June 30, 2026 and 164,969,773 shares issued and 162,575,937 shares outstanding at December 31, 2025	1,682	1,650
Additional paid-in capital	4,558,457	4,539,756
Accumulated deficit	(4,631,026)	(4,568,148)
Treasury stock, cost basis, 3,349,887 shares at June 30, 2026 and 2,393,836 shares at December 31, 2025	(112,372)	(103,021)
Accumulated other comprehensive income (loss)	(7,448)	2,010
Total stockholders’ deficit	(190,707)	(127,753)
Total liabilities and stockholders’ deficit	$ 955,575	$ 1,176,512

Lease, Right-Of-Use Asset

No definition available.

Name:	nvax_LeaseRightOfUseAsset
Namespace Prefix:	nvax_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).