Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S45
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480100/505-10-S45-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477657/942-210-S45-1

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478478/942-210-S50-1

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(20))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

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Business Combination - Schedule Of Business Acquisitions Common Stock Shares Issued (Detail) - shares	Jun. 30, 2026	Dec. 31, 2025
Business Acquisitions Common Stock Shares Issued [Line Items]
Common stock, shares issued (in shares)	224,681,185	17,449,020
Churchill Capital Corp X
Business Acquisitions Common Stock Shares Issued [Line Items]
Common stock, shares issued (in shares)	216,471,927
Legacy Infleqtion stockholders \| Churchill Capital Corp X
Business Acquisitions Common Stock Shares Issued [Line Items]
Common stock, shares issued (in shares)	151,804,988
Founder Shares \| Churchill Capital Corp X
Business Acquisitions Common Stock Shares Issued [Line Items]
Common stock, shares issued (in shares)	10,350,000
CCX private placement shares \| Churchill Capital Corp X
Business Acquisitions Common Stock Shares Issued [Line Items]
Common stock, shares issued (in shares)	300,000
CCX public stockholders \| Churchill Capital Corp X
Business Acquisitions Common Stock Shares Issued [Line Items]
Common stock, shares issued (in shares)	41,362,179
PIPE Investors \| Churchill Capital Corp X
Business Acquisitions Common Stock Shares Issued [Line Items]
Common stock, shares issued (in shares)	12,654,760