Investments of Operating Entities and Consolidated Funds - Operating Entities - Securities Sold/Purchased Under Agreements To Repurchase/Resell And Securities Lending And Borrowing Transactions (Details) - USD ($)		Dec. 31, 2021	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Securities borrowed		$ 1,704,603,000	$ 1,908,187,000
Securities Borrowed, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	[1]	0	0
Securities Borrowed		1,704,603,000	1,908,187,000
Securities borrowed, additional amounts, asset		0	0
Securities Borrowed, Not Offset, Policy Election Deduction		1,652,007,000	1,809,399,000
Securities Borrowed, Collateral, Obligation to Return Cash	[2]	0	0
Securities Borrowed, Amount Offset Against Collateral		52,596,000	98,788,000
Securities Loaned		1,586,572,000	2,476,414,000
Securities Loaned, Offset Against Collateral, Net of Not Subject to Master Netting Arrangement, Policy Election	[1]	0	0
Securities Loaned, Gross amounts recognized		1,586,572,000	2,476,414,000
Securities Loaned, Additional Amounts Available		0	0
Securities Loaned, Not Offset, Policy Election Deduction		1,592,140,000	2,383,342,000
Securities Loaned, Collateral, Right to Reclaim Cash	[2]	0	0
Securities Loaned, Amount Offset Against Collateral		(5,568,000)	93,072,000
Securities Sold under Agreements to Repurchase, Gross Including Not Subject to Master Netting Arrangement	[1]	0	0
Securities Sold under Agreements to Repurchase		63,469,000	5,036,000
Securities sold under agreements to repurchase, additional amounts		0	0
Securities sold under agreements to repurchase, Fair value		74,443,000	5,544,000
Securities borrowed, cash collateral pledged	[2]		0
Securities Loaned, Net amounts		(10,974,000)	(508,000)
Securities Purchased under Agreements to Resell		0	191,000
Securities Sold under Agreements to Repurchase, Gross	[1]		0
Securities purchased under agreements to resell, additional amounts			0
Securities Purchased under Agreements to Resell, Fair Value of Collateral			204,000
Securities Purchased under Agreements to Resell, Collateral, Obligation to Return Securities			(13,000)
Securities Sold under Agreements to Repurchase, Collateral, Right to Reclaim Cash	[2]	$ 0	$ 0

[1] Includes financial instruments subject to enforceable master netting provisions that are permitted to be offset to the extent an event of default has occurred.

[2] Includes the amount of cash collateral held/posted.