Derivative Instruments - Fair Value of Outstanding Derivative Contracts (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Derivative Instruments
Asset Derivatives	$ 862	$ 1,168
Liability Derivatives	1,258	1,452
Interest rate swap contract \| Accrued pension and other liabilities
Derivative Instruments
Liability Derivatives	397
Derivatives designated as hedging instruments \| Foreign exchange contracts \| Other current assets
Derivative Instruments
Asset Derivatives	232	670
Derivatives designated as hedging instruments \| Foreign exchange contracts \| Other assets
Derivative Instruments
Asset Derivatives	2	179
Derivatives designated as hedging instruments \| Foreign exchange contracts \| Accounts payable and accrued liabilities
Derivative Instruments
Liability Derivatives	412	30
Derivatives designated as hedging instruments \| Foreign exchange contracts \| Accrued pension and other liabilities
Derivative Instruments
Liability Derivatives	93	1
Derivatives designated as hedging instruments \| Natural gas contracts \| Other current assets
Derivative Instruments
Asset Derivatives	66	255
Derivatives designated as hedging instruments \| Natural gas contracts \| Other assets
Derivative Instruments
Asset Derivatives	5	43
Derivatives designated as hedging instruments \| Natural gas contracts \| Accounts payable and accrued liabilities
Derivative Instruments
Liability Derivatives	96
Derivatives designated as hedging instruments \| Natural gas contracts \| Accrued pension and other liabilities
Derivative Instruments
Liability Derivatives	91
Derivatives not designated as hedging instruments \| Foreign exchange contracts \| Other current assets
Derivative Instruments
Asset Derivatives	557	21
Derivatives not designated as hedging instruments \| Foreign exchange contracts \| Accounts payable and accrued liabilities
Derivative Instruments
Liability Derivatives	$ 169	$ 1,421

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and elected not to be offset.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

+ Details

Name:	us-gaap_DerivativeAssetFairValueGrossAssetIncludingNotSubjectToMasterNettingArrangement
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and elected not to be offset.

+ References

+ Details

Name:	us-gaap_DerivativeLiabilityFairValueGrossLiabilityIncludingNotSubjectToMasterNettingArrangement
Namespace Prefix:	us-gaap_
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

No definition available.

+ Details

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

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=ccc_AccruedPensionAndOtherLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_OtherCurrentAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_OtherAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BalanceSheetLocationAxis=us-gaap_AccountsPayableAndAccruedLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_EnergyRelatedDerivativeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: