Accrued Performance Fees - Components of Accrued Giveback Obligations (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Operating Statistics [Line Items]
Accrued giveback obligations	$ (46.3)	$ (69.2)
Corporate Private Equity [Member]
Operating Statistics [Line Items]
Accrued giveback obligations	(9.8)	(18.9)
Global Market Strategies [Member]
Operating Statistics [Line Items]
Accrued giveback obligations	(1.4)	(2.1)
Real Assets [Member]
Operating Statistics [Line Items]
Accrued giveback obligations	$ (35.1)	$ (48.2)

Amount of realized performance fees, if the fund were liquidated at the reporting date fair value, that would be given back to the fund investors at the end of the fund's life if the fund fair value does not recover sufficiently to pass through the hurdle rate that allows for the recognition of performance fees.

No definition available.

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