SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenue from Contracts with Customers (Details)	12 Months Ended
Dec. 31, 2020
Minimum
Settlement period for certain natural gas and natural gas liquids sales	1 month
Maximum
Settlement period for certain natural gas and natural gas liquids sales	4 months

The settlement period for certain natural gas and natural gas liquids sales.

No definition available.

Name:	krp_PeriodForSettlementForCertainNaturalGasAndNaturalGasLiquidsSales
Namespace Prefix:	krp_
Data Type:	us-types:durationStringItemType
Balance Type:	na
Period Type:	duration