Additional stock based compensation.

No definition available.

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Namespace Prefix:	cccs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Aggregate number of shares reserved for sale under plan increases on beginning of period percentage of total number of shares outstanding or lessor amount.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Number of consecutive trading days used to determine the share price.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of trading days used to determine the share price.

+ References

No definition available.

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
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- Definition

Share based compensation arrangement by share based payment award number of additional shares of common stock provided right to purchase.

+ References

No definition available.

+ Details

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Namespace Prefix:	cccs_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Aggregate number of common shares reserved for future issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.29)
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

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Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of cost to be recognized for option under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(01)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)(2)
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares issued under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

- Details

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Balance Type:
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- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
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Balance Type:
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- Details

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Data Type:	na
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- Details

Name:	us-gaap_PlanNameAxis=cccs_TwoThousandSeventeenStockPlanMember
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Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
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Data Type:	na
Balance Type:
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- Details

Name:	cccs_VestingCriteriaAxis=cccs_TimeBasedVestingRequirementsMember
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Data Type:	na
Balance Type:
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- Details

Name:	cccs_VestingCriteriaAxis=cccs_PerformanceAndMarketBasedVestingConditionsMember
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Data Type:	na
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- Details

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- Details

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Data Type:	na
Balance Type:
Period Type:

- Details

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- Details

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- Details

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- Details

Name:	us-gaap_StatementClassOfStockAxis=us-gaap_CommonClassBMember
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- Details

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Stock Incentive Plans - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share based compensation by share based arrangement options vested during the period aggregate fair value		$ 8.4
Share based compensation by share based arrangement unrecognised compensation for options unvested		$ 81.9
Share based compensation by share based arrangement unrecognised compensation for options unvested remaining period for recognition		1 year 7 months 6 days
Fair value at valuation date		$ 7.42
Ccc2021 Employee Stock Purchase Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Common stock reserved for issuance		6,031,714
Number of shares sold under plan		408,879
Ccc2021 Employee Stock Purchase Plan [Member] \| Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Aggregate number of shares reserved for sale under plan increases on beginning of period percentage of total number of shares outstanding or lessor amount		1.00%
Performance Based Awards Member \| Two Thousand Seventeen Stock Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Additional stock based compensation		$ 203.9
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Granted		15,824,517
Restricted Stock Units (RSUs) [Member] \| Time Based Vesting Requirements [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Granted		14,445,917
Restricted Stock Units (RSUs) [Member] \| Performance And Market Based Vesting Conditions [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Granted		689,275
Restricted Stock Units (RSUs) [Member] \| Performance Based Vesting Requirements [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Granted		689,325
Phantom Share Units PSUs Member \| Phantom Plan Member
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Additional stock based compensation		$ 6.0
Company Earnout Shares Member
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Number of additional shares		13,500,000	1,500,000
Allocated share based compensation expense	$ 8.1
Company Earnout Shares Member \| Share Price Greater Than Or Equal to USD Fifteen Per Share [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Fair value at valuation date		$ 15.00
Number of trading days used to determine the share price		20 days
Number of consecutive trading days used to determine the share price		30 days
Common Class B [Member] \| Performance And Market Based Vesting Conditions [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share based compensation by share based arrangement unrecognised compensation for options unvested remaining period for recognition		3 years 1 month 6 days
Common Class B [Member] \| Time Based Vesting [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Share based compensation by share based arrangement unrecognised compensation for options unvested		$ 185.6