Subsequent Events	3 Months Ended
Mar. 31, 2026
Subsequent Events [Abstract]
Subsequent Events	18. Subsequent Events Patent Litigation On April 13, 2026, the Company filed a patent infringement lawsuit against Cleerly, Inc. in the United States District Court for the Eastern District of Texas. The complaint seeks permanent injunctive relief and damages arising from Cleerly’s unauthorized and continued use of Heartflow’s patented technology. Heartflow asserts that Cleerly’s Ischemia, Plaque Analysis, and Compare products infringe six of Heartflow’s patents with priority dates from 2012 to 2018, protecting Heartflow innovations developed years before the introduction of any Cleerly product.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/855/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

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