The additional ownership percentage acquired.

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Number of partnership common units subject to vesting conditions that were issued to the sellers.

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Discount on unvested awards.

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Number of Partnership Units Exchanged for Common Units Under the Unit Exchange Program

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Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

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The cash outflow to reacquire common stock during the period.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Other than shares newly issued, the number of additional shares issued (for example, a stock split) or canceled (for example, to correct a share issuance), during the period under the plan.

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Amount of stock repurchase plan authorized.

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Number of shares that have been repurchased and retired during the period.

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Equity and Equity-Based Compensation - Additional Information (Details) - USD ($)		1 Months Ended	3 Months Ended		9 Months Ended		20 Months Ended
	Aug. 01, 2013	Dec. 31, 2012	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Jan. 01, 2017	Feb. 29, 2016	May 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for repurchase									$ 200,000,000
Payments to repurchase units			$ 0		$ 200,000	$ 53,600,000	$ 59,100,000
Units repurchased (in shares)					14,190		3,700,000
Number of partnership units exchanged for common units (in shares)			1,646,980		4,634,232
Capital reallocated from non-controlling interests			$ 9,200,000		$ 23,200,000
Number of the Partnership's common units and Carlyle Holdings partnership units available for grant under the Equity Incentive Plan (in shares)								32,645,874		30,450,000
AlpInvest
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional ownership percentage acquired (percent)	40.00%
Common units issued to AlpInvest employees that are subject to vesting conditions (in shares)	914,087
Unvested Partnership Common Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of vesting of unvested units (in years)					5 years
Unvested Partnership Common Units \| AlpInvest
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional ownership percentage acquired (percent)	40.00%
Common units issued to AlpInvest employees that are subject to vesting conditions (in shares)	914,087
Compensation not yet recognized			0		$ 0		$ 0
Allocated share based compensation expense			0	$ 0	$ 0	0
Unvested Carlyle Holdings Partnership Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of vesting of unvested units (in years)					6 years
Tax benefits related to equity-based compensation expense					$ 0
Unrecognized equity-based compensation expense			100,800,000		$ 100,800,000		100,800,000
Weighted-average term for unrecognized compensation expense to be recognized (in years)					7 months 6 days
Unvested Carlyle Holdings Partnership Units \| Carlyle Holdings
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share based compensation expense			42,700,000	40,800,000	$ 121,700,000	147,600,000
Unvested Carlyle Holdings Partnership Units \| ECM Capital, L.P.
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of vesting of unvested units (in years)		5 years
Number of partnership units issued with time vesting (in shares)		996,572
Number of partnership units issued at closing with performance-based vesting (in shares)		597,944
Deferred Restricted Common Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Period of vesting of unvested units (in years)					6 years
Allocated share based compensation expense			38,100,000	40,600,000	$ 119,900,000	116,800,000
Tax benefits related to equity-based compensation expense			4,600,000	$ 4,400,000	14,000,000	$ 13,500,000
Unrecognized equity-based compensation expense			$ 190,700,000		$ 190,700,000		$ 190,700,000
Weighted-average term for unrecognized compensation expense to be recognized (in years)					2 years
Unit discount (as a percent, up to)					40.00%