Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

Number of treasury shares or units reissued. Excludes reissuance of shares or units in treasury for award under share-based payment arrangement.

+ References

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+ Details

Stockholders' equity - Donations to Circle Foundation (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended			9 Months Ended
	Mar. 31, 2025	Sep. 30, 2026	Jun. 30, 2026	Mar. 31, 2026	Sep. 30, 2026
Class of Stock
Equity issuance cost		$ 4.6			$ 17.8
Treasury Stock
Class of Stock
Re-issuance of treasury stock (in shares)		67,060	67,000	67,000	201,180
Class A common stock
Class of Stock
Shares approved for reservation (in shares)	2,682,392
Shares approved for reservation as a percentage of capital stock (in percent)	1.00%
Share approved for reservation exercise period (in years)	10 years