CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 222,455	$ 240,634
Marketable securities	399,908	494,450
Restricted cash	0	10,876
Accounts receivable	49,158	106,446
Inventory	18,501	11,545
Prepaid expenses and other current assets	17,934	26,815
Assets held for sale	0	87,510
Total current assets	707,956	978,276
Property and equipment, net	36,278	44,800
Right-of-use asset, net	18,299	22,897
Goodwill	112,076	113,462
Other non-current assets	13,396	17,077
Total assets	888,005	1,176,512
Current liabilities:
Accounts payable	24,944	24,578
Accrued expenses	77,398	107,165
Deferred revenue	102,201	140,053
Current portion of finance lease liabilities	1,650	2,507
Other current liabilities	123,652	137,778
Liabilities held for sale	0	47,869
Total current liabilities	329,845	459,950
Deferred revenue	330,011	358,943
Long-term debt	292,088	244,213
Non-current finance lease liabilities	1,525	2,091
Other non-current liabilities	151,391	239,068
Total liabilities	1,104,860	1,304,265
Commitments and contingencies (Note 15)
Preferred stock, $0.01 par value, 2,000,000 shares authorized at September 30, 2026 and December 31, 2025; no shares issued and outstanding at September 30, 2026 and December 31, 2025	0	0
Stockholders' deficit:
Common stock, $0.01 par value, 600,000,000 shares authorized at September 30, 2026 and December 31, 2025; 168,353,068 shares issued and 164,992,950 shares outstanding at September 30, 2026 and 164,969,773 shares issued and 162,575,937 shares outstanding at December 31, 2025	1,684	1,650
Additional paid-in capital	4,567,173	4,539,756
Accumulated deficit	(4,662,402)	(4,568,148)
Treasury stock, cost basis, 3,360,118 shares at September 30, 2026 and 2,393,836 shares at December 31, 2025	(112,479)	(103,021)
Accumulated other comprehensive income (loss)	(10,831)	2,010
Total stockholders’ deficit	(216,855)	(127,753)
Total liabilities and stockholders’ deficit	$ 888,005	$ 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).