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Commitments and Contingencies (Details 2) (Multi-employer pension plan, USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Mar. 31, 2015
Multi-employer pension plan      
(Reduction in) addition to accrued plan liability $ 0.4us-gaap_IncreaseDecreaseInPensionPlanObligations $ (1.1)us-gaap_IncreaseDecreaseInPensionPlanObligations  
Payroll and benefits payable
      
Multi-employer pension plan      
Accrued plan liability $ 0.9us-gaap_DefinedBenefitPensionPlanLiabilitiesCurrent
/ us-gaap_BalanceSheetLocationAxis
= ccc_PayrollAndBenefitsPayableMember
/ us-gaap_MultiemployerPlanTypeAxis
= us-gaap_MultiemployerPlansPensionMember		   $ 1.0us-gaap_DefinedBenefitPensionPlanLiabilitiesCurrent
/ us-gaap_BalanceSheetLocationAxis
= ccc_PayrollAndBenefitsPayableMember
/ us-gaap_MultiemployerPlanTypeAxis
= us-gaap_MultiemployerPlansPensionMember