Description of Business	12 Months Ended
Dec. 31, 2025
Accounting Policies [Abstract]
Description of Business	Note 1. Description of Business Description of Business. Cars.com Inc. is a trusted audience-powered and data-driven technology platform that simplifies buying and selling cars. The flagship Cars.com marketplace connects millions of consumers to dealerships across the U.S., powering the car buying experience with artificial intelligence shopping tools and comprehensive vehicle reviews and content. The Company's interconnected ecosystem of products enables dealers and OEMs to sell more cars by efficiently leveraging its marketplace, dealer websites, trade and appraisal tools and proprietary in-market media solutions.

The entire disclosure for the general note to the financial statements for the reporting entity which may include, descriptions of the basis of presentation, business description, significant accounting policies, consolidations, reclassifications, new pronouncements not yet adopted and changes in accounting principles.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483426/235-10-50-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 810
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/810/tableOfContent

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 250
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/250/tableOfContent

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