Condensed Consolidated Statements of Financial Condition (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Assets
Cash and cash-equivalents	$ 279,311	$ 297,230
U.S. Treasury and government agency securities	376,224	381,697
Investments in limited partnerships	126,034	121,825
Due from affiliates	44,316	31,826
Deferred tax assets	168,110	72,986
Investments, at fair value	38,835,612	38,614,226
Other assets	117,203	110,181
Total assets	44,770,769	44,294,156
Liabilities:
Accrued compensation expense	123,133	185,597
Accounts payable, accrued expenses and other liabilities	48,744	63,108
Due to affiliates	140,239	57,574
Debt obligations	626,429	652,143
Securities sold short, at fair value	188,183	213,727
Borrowings under revolving credit facilities	218,961	50,117
Total liabilities	2,057,753	2,121,549
Commitments and contingencies
Non-controlling redeemable interests in consolidated funds	41,458,338	41,048,607
Unitholders' capital:
Paid-in capital	682,292	634,739
Accumulated deficit	(401,386)	(444,713)
Accumulated other comprehensive loss	(2,136)	(1,884)
Class A unitholders' capital	278,770	188,142
OCGH non-controlling interest in consolidated subsidiaries	975,908	935,858
Total unitholders' capital	1,254,678	1,124,000
Total liabilities and unitholders' capital	44,770,769	44,294,156
Consolidated funds
Assets
Cash and cash-equivalents	3,295,424	3,208,429
Investments, at fair value	38,835,612	38,614,226
Dividends and interest receivable	215,146	268,162
Due from brokers	837,055	903,685
Receivable for securities sold	224,639	59,678
Derivative assets, at fair value	147,421	115,980
Other assets	104,274	108,251
Liabilities:
Accounts payable, accrued expenses and other liabilities	17,972	52,600
Payables for securities purchased	440,881	398,714
Securities sold short, at fair value	188,183	213,727
Derivative liabilities, at fair value	83,023	68,414
Distributions payable	170,188	379,555
Borrowings under revolving credit facilities	218,961	50,117
Class A units
Unitholders' capital:
Common stock
Class B units
Unitholders' capital:
Common stock
Class C units
Unitholders' capital:
Common stock