Supplemental Cash Flow Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Supplemental Cash Flow Information
Non-cash decrease and increase in accounts payable and accrued liabilities for changes in unpaid capital expenditures	$ (0.5)	$ 0.7

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