Represents the number of countries in which plan assets are invested.

No definition available.

Name:	ccc_DefinedBenefitPlanTargetPlanAssetAllocationsNumberOfCountries
Namespace Prefix:	ccc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of emerging economies.

+ References

No definition available.

+ Details

Name:	ccc_NumberOfEmergingEconomies
Namespace Prefix:	ccc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of major MSCI indices from Europe, Australia and Southeast Asia.

+ References

No definition available.

+ Details

Name:	ccc_NumberOfMajorMSCIIndices
Namespace Prefix:	ccc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the period of investment.

+ References

No definition available.

+ Details

Name:	ccc_TermOfInvestment
Namespace Prefix:	ccc_
Data Type:	xbrli:durationItemType
Balance Type:	na
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

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

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 30
-Section 35
-Paragraph 50
-URI http://asc.fasb.org/extlink&oid=49178875&loc=d3e12355-114930

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

+ Details

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

- Definition

Target allocation of investments of this type to total plan assets presented on a weighted average basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (c)(i)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2446-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Target allocation minimum percentage of investments of this type to total plan assets presented on a weighted average basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(i)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (c)(i)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2446-114920

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e2446-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (d)(1)
-URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Employee Benefit Plans - Fair Values of Pension Plan Assets (Details 2) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($) item	Dec. 31, 2014 USD ($) item	Dec. 31, 2013 USD ($)
U.S. Plans
Pensions
Fair value of plan assets	$ 89,382	$ 98,395	$ 99,784
U.S. Plans \| Level 1
Pensions
Fair value of plan assets	45,578	67,959
U.S. Plans \| Level 2
Pensions
Fair value of plan assets	43,804	30,436
U.S. Plans \| Cash and Cash Equivalents
Pensions
Fair value of plan assets	4,300	2,610
U.S. Plans \| Cash and Cash Equivalents \| Level 1
Pensions
Fair value of plan assets	262
U.S. Plans \| Cash and Cash Equivalents \| Level 2
Pensions
Fair value of plan assets	4,038	2,610
U.S. Plans \| Large Cap equities
Pensions
Fair value of plan assets	19,329	21,252
U.S. Plans \| Large Cap equities \| Level 1
Pensions
Fair value of plan assets	19,329	21,252
U.S. Plans \| Small/Mid Cap equity securities
Pensions
Fair value of plan assets	9,598	12,906
U.S. Plans \| Small/Mid Cap equity securities \| Level 1
Pensions
Fair value of plan assets	9,598	12,906
U.S. Plans \| Equities Blend
Pensions
Fair value of plan assets	257	826
U.S. Plans \| Equities Blend \| Level 1
Pensions
Fair value of plan assets	257	826
U.S. Plans \| International Equity
Pensions
Fair value of plan assets	$ 5,607	$ 9,036
Number of major MSCI indices \| item	21	21
U.S. Plans \| International Equity \| Level 1
Pensions
Fair value of plan assets	$ 5,607	$ 9,036
U.S. Plans \| Emerging Markets
Pensions
Fair value of plan assets	$ 5,056	$ 5,852
Number of emerging economies \| item	21	21
U.S. Plans \| Emerging Markets \| Level 1
Pensions
Fair value of plan assets	$ 5,056	$ 5,852
U.S. Plans \| Corporate Bonds
Pensions
Fair value of plan assets	23,777	19,179
U.S. Plans \| Corporate Bonds \| Level 1
Pensions
Fair value of plan assets		1,107
U.S. Plans \| Corporate Bonds \| Level 2
Pensions
Fair value of plan assets	23,777	18,072
U.S. Plans \| Government Bonds
Pensions
Fair value of plan assets	$ 13,945	$ 15,045
Period of investment	2 years	2 years
U.S. Plans \| Government Bonds \| Level 1
Pensions
Fair value of plan assets	$ 1,487	$ 11,968
U.S. Plans \| Government Bonds \| Level 2
Pensions
Fair value of plan assets	12,458	3,077
U.S. Plans \| International Bonds
Pensions
Fair value of plan assets	3,531	2,588
U.S. Plans \| International Bonds \| Level 2
Pensions
Fair value of plan assets	3,531	2,588
U.S. Plans \| Mortgage/Asset Backed
Pensions
Fair value of plan assets		4,089
U.S. Plans \| Mortgage/Asset Backed \| Level 2
Pensions
Fair value of plan assets		4,089
U.S. Plans \| Commodities
Pensions
Fair value of plan assets	1,768	3,077
U.S. Plans \| Commodities \| Level 1
Pensions
Fair value of plan assets	1,768	3,077
U.S. Plans \| Real Estate
Pensions
Fair value of plan assets	2,214	1,935
U.S. Plans \| Real Estate \| Level 1
Pensions
Fair value of plan assets	$ 2,214	$ 1,935
U.S. Plans \| Real Estate \| Minimum
Pensions
Number of countries in which fund invests \| item	3	3
U.S. Plans \| Real estate equity securities
Pensions
Investment in securities, minimum (as a percent)	80.00%	80.00%
U.S. Plans \| Foreign real estate securities
Pensions
Investment in securities, minimum (as a percent)	40.00%	40.00%
European Plans
Pensions
Fair value of plan assets	$ 29,351	$ 31,025	$ 29,586
European Plans \| Level 1
Pensions
Fair value of plan assets	26,228	26,245
European Plans \| Level 3
Pensions
Fair value of plan assets	3,123	4,780
European Plans \| Cash and Cash Equivalents
Pensions
Fair value of plan assets	1,997	611
European Plans \| Cash and Cash Equivalents \| Level 1
Pensions
Fair value of plan assets	1,997	611
European Plans \| M&G PP Discretionary Fund
Pensions
Fair value of plan assets	4,673	4,922
European Plans \| M&G PP Discretionary Fund \| Level 1
Pensions
Fair value of plan assets	4,673	4,922
European Plans \| Global Equity 60-40 Index equities
Pensions
Fair value of plan assets	5,412	5,475
European Plans \| Global Equity 60-40 Index equities \| Level 1
Pensions
Fair value of plan assets	$ 5,412	$ 5,475
European Plans \| UK Equity Index Fund
Pensions
Investment allocation (as a percent)	60.00%	60.00%
European Plans \| Overseas index equity funds
Pensions
Investment allocation (as a percent)	40.00%	40.00%
European Plans \| North American equity funds
Pensions
Target allocation (as a percent)	14.00%	14.00%
European Plans \| European equity funds
Pensions
Target allocation (as a percent)	14.00%	14.00%
European Plans \| Japanese equity funds
Pensions
Target allocation (as a percent)	7.00%	7.00%
European Plans \| Pacific Basin equity funds
Pensions
Target allocation (as a percent)	5.00%	5.00%
European Plans \| Delta Lloyd Fixed Income
Pensions
Fair value of plan assets	$ 1,864	$ 3,481
Period of investment	6 years	6 years
European Plans \| Delta Lloyd Fixed Income \| Level 3
Pensions
Fair value of plan assets	$ 1,864	$ 3,481
European Plans \| Corporate Bonds
Pensions
Fair value of plan assets	5,022	5,417
European Plans \| Corporate Bonds \| Level 1
Pensions
Fair value of plan assets	$ 5,022	$ 5,417
European Plans \| Over 15 Year Fund
Pensions
Period of investment	15 years	15 years
European Plans \| Government Bonds
Pensions
Fair value of plan assets	$ 6,913	$ 7,628
European Plans \| Government Bonds \| Level 1
Pensions
Fair value of plan assets	6,913	7,628
European Plans \| Real Estate
Pensions
Fair value of plan assets	2,211	2,192
European Plans \| Real Estate \| Level 1
Pensions
Fair value of plan assets	2,211	2,192
European Plans \| Insurance Reserves
Pensions
Fair value of plan assets	1,259	1,299
European Plans \| Insurance Reserves \| Level 3
Pensions
Fair value of plan assets	$ 1,259	$ 1,299