Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 345,558	$ 112,279
Marketable securities	668,432	230,859
Restricted cash	0	428
Prepaid expenses and other current assets	17,681	10,190
Total current assets	1,031,671	353,756
Property and equipment, net	6,094	6,868
Operating lease right-of-use assets	33,664	35,624
Restricted cash, net of current portion	2,139	2,139
Other assets	312	303
Total assets	1,073,880	398,690
Current liabilities:
Accounts payable	1,810	1,182
Accrued expenses and other current liabilities	15,546	17,759
Operating lease liabilities	2,943	2,738
Total current liabilities	20,299	21,679
Operating lease liabilities, net of current portion	29,049	30,832
Total liabilities	49,348	52,511
Commitments and contingencies (Note 7)
Preferred stock, $0.001 par value; 10,000,000 shares authorized; no shares issued and outstanding as of June 30, 2026 and December 31, 2025, respectively	0	0
Stockholders' equity:
Common stock, $0.001 par value; 400,000,000 and 200,000,000 shares authorized at June 30, 2026 and December 31, 2025, respectively;168,380,091 and 135,940,454 shares issued and outstanding as of June 30, 2026 and December 31, 2025, respectively	168	136
Additional paid-in capital	1,729,004	948,971
Accumulated other comprehensive (loss) income	(633)	224
Accumulated deficit	(704,007)	(603,152)
Total stockholders' equity	1,024,532	346,179
Total liabilities and stockholders' equity	$ 1,073,880	$ 398,690

Accrued expenses and other current liabilities.

No definition available.

Name:	tngx_AccruedExpensesAndOtherCurrentLiabilities
Namespace Prefix:	tngx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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).