Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2015	Sep. 30, 2014
Supplemental Cash Flow Information
Non-cash (decrease) increase in accounts payable and accrued liabilities for changes in unpaid capital expenditures	$ (0.2)	$ 2.5

The increase (decrease) during the reporting period in the liability for capital expenditures incurred but not yet paid.

No definition available.

Name:	ccc_IncreaseDecreaseInUnpaidCapitalExpenditures
Namespace Prefix:	ccc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration