Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Income Statement [Abstract]
Revenue	$ 1,632,583	$ 883,855
Cost of revenue	215,798	172,970
Gross profit	1,416,785	710,885
Operating expenses:
Sales and marketing	319,220	236,309
Research and development	160,981	134,889
General and administrative	182,586	163,639
Total operating expenses	662,787	534,837
Income from operations	753,998	176,048
Interest income	66,394	50,441
Other income (expense), net	68,209	(3,173)
Income before provision for income taxes	888,601	223,316
Provision for income taxes	12,199	5,599
Net income	876,402	217,717
Less: Net income attributable to noncontrolling interests	5,875	3,686
Net income attributable to common stockholders	$ 870,527	$ 214,031
Earnings per share attributable to common stockholders, basic (in dollars per share)	$ 0.36	$ 0.09
Earnings per share attributable to common stockholders, diluted (in dollars per share)	$ 0.34	$ 0.08
Weighted-average shares of common stock outstanding used in computing earnings per share attributable to common stockholders, basic (in shares)	2,393,869	2,348,679
Weighted-average shares of common stock outstanding used in computing earnings per share attributable to common stockholders, diluted (in shares)	2,570,924	2,552,818

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Operating activities
Net income	$ 876,402	$ 217,717
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	6,765	6,622
Stock-based compensation	201,592	155,339
Other operating activities	(53,959)	(3,094)
Changes in operating assets and liabilities:
Accounts receivable, net	(360,973)	(134,959)
Prepaid expenses and other assets	49,062	40,730
Accounts payable and accrued liabilities	80,788	22,395
Contract liabilities	112,386	18,760
Other liabilities	(12,898)	(13,247)
Net cash provided by operating activities	899,165	310,263
Investing activities
Purchases of property and equipment	(7,401)	(6,184)
Purchases of marketable securities	(810,856)	(1,704,720)
Proceeds from sales and redemption of marketable securities	791,533	350,627
Other investing activities	0	(30,000)
Net cash used in investing activities	(26,724)	(1,390,277)
Financing activities
Proceeds from the exercise of common stock options	4,899	66,584
Other financing activities	(1,502)	(95,481)
Net cash provided by (used in) financing activities	3,397	(28,897)
Effect of foreign exchange on cash, cash equivalents, and restricted cash	(2,404)	3,980
Net increase (decrease) in cash, cash equivalents, and restricted cash	873,434	(1,104,931)
Cash, cash equivalents, and restricted cash - beginning of period	1,451,425	2,119,936
Cash, cash equivalents, and restricted cash - end of period	$ 2,324,859	$ 1,015,005

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 2,291,631	$ 1,423,796
Marketable securities	5,734,782	5,753,247
Accounts receivable, net	1,405,588	1,042,065
Prepaid expenses and other current assets	119,703	139,066
Total current assets	9,551,704	8,358,174
Property and equipment, net	55,726	51,960
Operating lease right-of-use assets	228,980	200,105
Other assets	362,773	290,153
Total assets	10,199,183	8,900,392
Current liabilities:
Accounts payable, accrued liabilities, and other	495,962	409,552
Deferred revenue	516,868	408,963
Customer deposits	370,119	357,066
Total current liabilities	1,382,949	1,175,581
Deferred revenue, noncurrent	41,128	46,216
Customer deposits, noncurrent	1,175	18
Operating lease liabilities, noncurrent	211,977	183,474
Other noncurrent liabilities	5,673	7,092
Total liabilities	1,642,902	1,412,381
Commitments and Contingencies (Note 7)
Palantir's stockholders’ equity:
Common stock	2,397	2,391
Additional paid-in capital	11,138,528	10,933,325
Accumulated other comprehensive income, net	601	13,942
Accumulated deficit	(2,691,863)	(3,562,390)
Total Palantir's stockholders’ equity	8,449,663	7,387,268
Noncontrolling interests	106,618	100,743
Total equity	8,556,281	7,488,011
Total liabilities and equity	$ 10,199,183	$ 8,900,392