Income Taxes - Summary of Tax Effects of Temporary Differences (Parenthetical) (Detail) (USD $)	Dec. 31, 2012
Schedule Of Deferred Tax Assets And Liabilities [Line Items]
Amount of deferred tax liabilities offset for presentation purposes	$ 14.3

Amount of deferred tax liabilities that were offset and presented as a single deferred tax asset amount on the balance sheet.

No definition available.

Name:	cg_DeferredTaxLiabilitiesOffset
Namespace Prefix:	cg_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant