NON-CONTROLLING REDEEMABLE INTERESTS IN CONSOLIDATED FUNDS - Summary of Changes in Non-controlling Redeemable Interests in Consolidated Funds (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Sep. 30, 2013	Sep. 30, 2012
Non-Controlling Redeemable Interests in Consolidated Funds [Roll Forward]
Beginning balance	$ 39,670,831	$ 41,048,607
Contributions	4,613,588	4,948,480
Distributions	(10,033,373)	(7,907,434)
Net income	3,743,327	4,868,300
Change in distributions payable	234,409	125,741
Change in accrued or deferred contributions	3,525	41,000
Foreign currency translation and other	97,605	(21,152)
Ending balance	$ 38,329,912	$ 43,103,542

Carrying amount, attributable to noncontrolling interests, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant