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.

Summary of Significant Accounting Policies - Revenue Recognition (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Fund Management Fees
Period of time for which management fees will be received by partners from the initial closing date (in years)			10 years
Subsequent period in which management fees are recognized after these fees are called (in months)			6 months
Transaction and advisory fees	$ 6.1	$ 8.4	$ 17.8	$ 31.9
Performance Fees
Performance fees allocation percentage to partnership			20.00%
Accrued giveback obligations	162.2		$ 162.2		$ 160.8
Interest Income
Interest income of Consolidated Funds	$ 41.8	$ 33.9	$ 82.3	$ 61.6
Minimum
Fund Management Fees
Percentage of management fees earned			1.00%
Percentage of management fees earned on unrealized investments after termination of the investment period			0.60%
Extension period for fund closing (in years)			1 year
Percentage of management fees for CLOs on the total par amount of assets in the fund			0.30%
Period of management fees related to Collateralized Loan Obligation (in years)			5 years
Percentage of management fees for business development companies			0.25%
Percentage of management fees from fund of funds following the expiration of the weighted-average investment period			0.25%
Performance Fees
External coinvestment vehicles (as a percent)			10.00%
Percentage of allocation based performance fees related to fund of funds vehicles			2.00%
Percent of preferred returns			7.00%
Minimum \| Certain Open-ended and Longer-dated Carry Funds
Performance Fees
Percent of preferred returns			4.00%
Minimum \| Managed Accounts and Longer-dated Carry Funds
Fund Management Fees
Percentage of management fees earned			0.20%
Minimum \| Private Equity And Real Estate Fund
Fund Management Fees
Percentage of management fees from funds of funds during the commitment fee period			0.25%
Maximum
Fund Management Fees
Percentage of management fees earned			2.00%
Percentage of management fees earned on unrealized investments after termination of the investment period			2.00%
Extension period for fund closing (in years)			2 years
Percentage of management fees for CLOs on the total par amount of assets in the fund			0.60%
Period of management fees related to Collateralized Loan Obligation (in years)			10 years
Percentage of management fees for business development companies			1.00%
Percentage of management fees from fund of funds following the expiration of the weighted-average investment period			1.00%
Performance Fees
External coinvestment vehicles (as a percent)			20.00%
Percentage of allocation based performance fees related to fund of funds vehicles			10.00%
Percent of preferred returns			9.00%
Maximum \| Certain Open-ended and Longer-dated Carry Funds
Performance Fees
Percent of preferred returns			7.00%
Maximum \| Managed Accounts and Longer-dated Carry Funds
Fund Management Fees
Percentage of management fees earned			1.00%
Maximum \| Private Equity And Real Estate Fund
Fund Management Fees
Percentage of management fees from funds of funds during the commitment fee period			1.00%