Investments of Operating Entities and Consolidated Funds - Securities Purchased Under Agreements to Resell or Sold Under Agreements to Repurchase (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Assets Purchased Under Agreements to Resell or Sold under Agreements to Repurchase [Line Items]
Financial Instruments, Owned and Pledged as Collateral, at Fair Value	$ 0	$ 0
Securities Sold under Agreements to Repurchase, Gross		3,657
Securities Sold under Agreements to Repurchase, Amount Offset Against Collateral		0	[1]
Securities sold under agreements to repurchase	0	3,657
Securities Sold under Agreements to Repurchase, Fair Value of Collateral		3,657	[2]
Securities Sold Under Agreements to Repurchase, Amounts not Offset		0
Securities Owned at Fair Value
Assets Purchased Under Agreements to Resell or Sold under Agreements to Repurchase [Line Items]
Financial Instruments, Owned and Pledged as Collateral, at Fair Value		4,600
Maturity on Demand
Assets Purchased Under Agreements to Resell or Sold under Agreements to Repurchase [Line Items]
Securities sold under agreements to repurchase		3,657
Royal Bank of Canada | Maturity on Demand
Assets Purchased Under Agreements to Resell or Sold under Agreements to Repurchase [Line Items]
Interest rates on repurchase agreements		1.75%
Securities sold under agreements to repurchase		$ 3,657

[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 collateral held or posted.