Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Revenue	$ 64,668	$ 7,566
Costs and expenses:
Cost of revenue (excluding depreciation and amortization)	49,254	4,315
Research and development	125,740	39,953
Sales and marketing	29,436	8,610
General and administrative	88,616	23,806
Depreciation and amortization	43,129	6,561
Total operating costs and expenses	336,175	83,245
Loss from operations	(271,507)	(75,679)
Gain (loss) on change in fair value of warrant liabilities	1,057,628	38,494
Interest income, net	28,234	4,894
Other income (expense), net	(16,127)	51
Income (loss) before income tax expense	798,228	(32,240)
Income tax benefit (expense)	6,382	(12)
Net income (loss)	804,610	(32,252)
Net income (loss) attributable to noncontrolling interests	(750)	0
Net income (loss) attributable to IonQ, Inc.	$ 805,360	$ (32,252)
Net income (loss) per share attributable to IonQ, Inc. common stockholders-basic	$ 2.19	$ (0.14)
Net income (loss) per share attributable to IonQ, Inc. common stockholders-diluted	$ 2.07	$ (0.14)
Weighted average shares used in computing net income (loss) per share attributable to IonQ, Inc. common stockholders-basic	358,822,219	228,759,209
Weighted average shares used in computing net income (loss) per share attributable to IonQ, Inc. common stockholders-diluted	371,228,286	228,759,209

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Cash flows from operating activities:
Net income (loss)	$ 804,610	$ (32,252)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	43,129	6,561
Stock-based compensation	128,517	33,253
(Gain) loss on change in fair value of warrant liabilities	(1,057,628)	(38,494)
Deferred income taxes	(6,508)	0
Other, net	8,475	(584)
Changes in operating assets and liabilities:
Accounts receivable	(23,230)	748
Prepaid expenses and other current assets	(41,645)	(12,471)
Accounts payable	9,439	3,272
Accrued expenses and other current liabilities	(24,944)	6,123
Unearned revenue	11,082	1,299
Other assets and liabilities	(2,321)	(480)
Net cash provided by (used in) operating activities	(151,024)	(33,025)
Cash flows from investing activities:
Purchases of property and equipment	(8,369)	(2,308)
Purchases of available-for-sale securities	(588,328)	(320,571)
Maturities of available-for-sale securities	292,050	93,805
Purchases of strategic investments	(52,500)	0
Businesses acquired, net of cash paid and acquired	(33,281)	0
Other investing, net	(1,425)	(1,102)
Net cash provided by (used in) investing activities	(391,853)	(230,176)
Cash flows from financing activities:
Proceeds from common stock and warrant issuance, net of issuance costs	0	362,303
Proceeds from stock options exercised	3,163	1,213
Proceeds from public warrants exercised	2,199	4,702
Other financing, net	1,537	516
Net cash provided by (used in) financing activities	6,899	368,734
Effect of foreign exchange rate changes on cash, cash equivalents and restricted cash	(417)	(13)
Net change in cash, cash equivalents and restricted cash	(536,395)	105,520
Cash, cash equivalents and restricted cash at the beginning of the period	1,037,748	56,840
Cash, cash equivalents and restricted cash at the end of the period	501,353	162,360
Supplemental disclosures of non-cash investing and financing transactions
Property and equipment purchases in accounts payable and accrued expenses	1,636	152
At-the-market offering issuance costs in accounts payable and accrued expenses	0	4,049
Noncash reclassification of warrant liabilities to equity upon exercise	7,138	10,953
Bonus settled in restricted stock units	27,982	6,969
Equity issued for acquisitions	164,645	0
Equity issued for intangible assets	14,760	0
Equity issued for research and development arrangement	$ 73,046	$ 0

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
Current assets:
Cash and cash equivalents	$ 493,538	$ 1,030,865
Short-term investments	1,539,932	1,361,291
Accounts receivable, net	98,197	66,532
Prepaid expenses and other current assets	171,251	127,751
Total current assets	2,302,918	2,586,439
Long-term investments	1,058,426	944,643
Property and equipment, net	132,310	120,145
Operating lease right-of-use assets	23,498	22,724
Intangible assets, net	781,090	767,432
Goodwill	2,127,665	1,963,584
Other noncurrent assets	267,806	165,391
Total Assets	6,693,713	6,570,358
Current liabilities:
Accounts payable	38,308	26,138
Accrued expenses and other current liabilities	65,444	89,721
Current portion of operating lease liabilities	9,165	8,850
Unearned revenue	50,970	42,116
Total current liabilities	163,887	166,825
Operating lease liabilities, net of current portion	21,278	21,171
Unearned revenue, net of current portion	13,472	1,921
Warrant liabilities	1,406,811	2,471,577
Other noncurrent liabilities	98,563	95,172
Total liabilities	1,704,011	2,756,666
Commitments and contingencies (see Note 12)
Stockholders' Equity:
Common stock $0.0001 par value; 1,000,000,000 shares authorized; 373,171,320and 362,592,722 shares outstanding as of March 31, 2026 and December 31, 2025, respectively	37	36
Additional paid-in capital	5,419,731	5,006,250
Accumulated deficit	(388,738)	(1,194,098)
Accumulated other comprehensive income (loss)	(55,061)	(12,671)
Total IonQ, Inc. stockholders' equity	4,975,969	3,799,517
Noncontrolling interests	13,733	14,175
Total stockholders' equity	4,989,702	3,813,692
Total Liabilities and Stockholders' Equity	$ 6,693,713	$ 6,570,358