Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Litigation Accrual

No definition available.

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Namespace Prefix:	csgp_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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.

+ References

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+ Details

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- Definition

Term of lessee's operating lease not yet commenced, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

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- Definition

Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

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- Definition

Amount of damages awarded to the plaintiff in the legal matter.

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- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

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Data Type:	xbrli:monetaryItemType
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- Definition

Amount of unrecorded obligation to transfer funds in future for fixed or minimum amount or quantity of product and service at fixed or minimum price. Includes, but is not limited to, lease not yet commenced and take-or-pay and throughput contracts.

+ References

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COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($) $ in Millions				3 Months Ended
	Apr. 22, 2025	Aug. 14, 2024	May 28, 2024	Mar. 31, 2026	Feb. 28, 2025
Business Combination [Line Items]
Operating leases not yet commenced with aggregate rent payments				$ 37
Amount awarded to plaintiff	$ 79		$ 79
Potential damages sought				17
Litigation expense		$ 95
Matterport
Business Combination [Line Items]
Litigation accrual				$ 99	$ 99
Minimum
Business Combination [Line Items]
Operating lease terms (in years)				5 years
Maximum
Business Combination [Line Items]
Operating lease terms (in years)				6 years