SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Incentive Fees (Details)	9 Months Ended
Sep. 30, 2020
Accounting Policies [Abstract]
Incentive fee, low end of range (as a percent)	5.00%
Incentive fee, high end of range (as a percent)	20.00%

Represents the high end of the range of incentive fee, expressed as a percentage.

No definition available.

Name:	kkr_MaximumRangePercentageOfIncentiveFee
Namespace Prefix:	kkr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration