Derivative Contracts Schedule of Commodity Derivative Contracts (Details) (USD $)	12 Months Ended
	Dec. 31, 2014 MMBTU
Natural Gas Sales [Member] | QEP Energy [Member] | Year 2014 [Member] | NYMEX [Member]
Derivative [Line Items]
Derivative Contract Year	2015
Derivative, Underlying Basis	IFNPCR
Derivative, Nonmonetary Notional Amount	40,200,000
Underlying, Derivative Asset	3.70
Natural Gas Sales [Member] | QEP Energy [Member] | Year 2014 [Member] | IFNPCR [Member]
Derivative [Line Items]
Derivative Contract Year	2015
Derivative, Underlying Basis	NYMEX HH
Derivative, Nonmonetary Notional Amount	29,200,000
Underlying, Derivative Asset	4.11
Natural Gas Sales [Member] | QEP Marketing [Member] | Year 2015 [Member] | IFNPCR [Member]
Derivative [Line Items]
Derivative Contract Year	2015
Derivative, Underlying Basis	IFNPCR
Derivative, Nonmonetary Notional Amount	2,800,000
Underlying, Derivative Asset	4.03
Natural Gas Sales [Member] | QEP Marketing [Member] | Year2016 [Member] | IFNPCR [Member]
Derivative [Line Items]
Derivative Contract Year	2016
Derivative, Underlying Basis	IFNPCR
Derivative, Nonmonetary Notional Amount	900,000
Underlying, Derivative Asset	3.58
Purchased Gas and Oil Expense [Member] | QEP Marketing [Member] | Year 2014 [Member] | IFNPCR [Member]
Derivative [Line Items]
Derivative Contract Year	2015
Derivative, Underlying Basis	IFNPCR
Derivative, Nonmonetary Notional Amount	900,000
Underlying, Derivative Asset	3.06
Crude Oil Sales Costless Collars [Member] | QEP Energy [Member] | Year 2015 [Member] | NYMEX WTI [Member]
Derivative [Line Items]
Derivative Contract Year	2015
Derivative, Underlying Basis	NYMEX WTI
Derivative, Nonmonetary Notional Amount	500,000
Derivative Average Price Floor	$ 50.00
Derivative Average Price Ceiling	$ 63.34
Oil Basis Swaps [Member] | QEP Energy [Member] | Year 2015 [Member] | NYMEX WTI less LLS Differential [Member]
Derivative [Line Items]
Derivative Contract Year	2015
Derivative, Underlying Basis	LLS
Derivative, Nonmonetary Notional Amount	100,000
Underlying, Derivative Asset	4.03
Oil Sales [Member] | QEP Energy [Member] | Year 2014 [Member] | NYMEX WTI [Member]
Derivative [Line Items]
Derivative Contract Year	2015
Derivative, Underlying Basis	NYMEX WTI
Derivative, Nonmonetary Notional Amount	7,700,000
Underlying, Derivative Asset	90.04
Oil Sales [Member] | QEP Energy [Member] | Year 2015 [Member] | BRENT ICE [Member]
Derivative [Line Items]
Derivative Contract Year	2015
Derivative, Underlying Basis	ICE Brent
Derivative, Nonmonetary Notional Amount	400,000
Underlying, Derivative Asset	104.95
Oil Sales [Member] | QEP Energy [Member] | Year2016 [Member] | NYMEX WTI [Member]
Derivative [Line Items]
Derivative Contract Year	2016
Derivative, Underlying Basis	NYMEX WTI
Derivative, Nonmonetary Notional Amount	400,000
Underlying, Derivative Asset	90.00