Viper Energy Partners LP (Details) (Viper Energy Partners LP [Member], USD $) In Millions, except Share data, unless otherwise specified			0 Months Ended		0 Months Ended				0 Months Ended
	Sep. 30, 2014	Jun. 23, 2014	Jun. 23, 2014 IPO [Member]	Jun. 23, 2014 IPO [Member]	Jun. 23, 2014 Over-Allotment Option [Member]	Sep. 19, 2014 Public Offering [Member]	Sep. 19, 2014 Public Offering [Member]	Jun. 23, 2014 Diamondback Energy, Inc. [Member]	Jun. 23, 2014 Diamondback Energy, Inc. [Member] Limited Partner [Member]	Sep. 30, 2014 Diamondback Energy, Inc. [Member] Limited Partner [Member]
Noncontrolling Interest [Line Items]
Interest in Viper Energy Partners LP	88.00%	92.00%
Units issued by Viper Energy Partners LP			5,750,000		750,000	3,500,000
Noncontrolling owners' interest in Viper Energy Partners LP				8.00%
Price per common unit (in dollars per unit)				$ 26			$ 28.50
Proceeds from sale of common units, net of offering expenses and underwriting discounts and commissions			$ 137.2			$ 95.1
Exchange of membership interests for common units									70,450,000
Distribution payable								11.6
Cash distributions										$ 148.8