Non-controlling Interests in Consolidated Entities - Non-Controlling Interests in Income (Loss) of Consolidated Entities (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Noncontrolling Interest [Line Items]
Non-controlling interests in income (loss) of consolidated entities	$ 37.2	$ 10.5	$ (1.2)	$ 45.8
Non-Carlyle interests in Consolidated Funds
Noncontrolling Interest [Line Items]
Net income (loss) attributable to other non-controlling interests in consolidated entities	2.8	0.0	6.2	11.2
Non-Carlyle interests in majority-owned subsidiaries
Noncontrolling Interest [Line Items]
Net income (loss) attributable to other non-controlling interests in consolidated entities	34.5	9.7	(7.2)	27.2
Non-controlling interest in carried interest, giveback obligations and cash held for carried interest distributions
Noncontrolling Interest [Line Items]
Net income (loss) attributable to other non-controlling interests in consolidated entities	$ (0.1)	$ 0.8	$ (0.2)	$ 7.4