Rosetta Merger Derivatives (Details)			6 Months Ended
		Jul. 20, 2015 bbl / d MMBTU / d $ / bbl $ / MMBTU	Jun. 30, 2015 bbl / d MMBTU / d $ / bbl $ / MMBTU
Two Way Collars - NYMEX WTI 2015 | Crude Oil Commodity Contract
Derivative [Line Items]
Settlement Period			2015
Index			NYMEX WTI
Bbls Per Day | bbl / d			5,000
Weighted Average Floor Price			50.00
Weighted Average Ceiling Price			64.94
Swaps - NYMEX WTI 2015 | Crude Oil Commodity Contract
Derivative [Line Items]
Settlement Period			2015
Index			NYMEX WTI
Bbls Per Day | bbl / d			27,000
Weighted Average Fixed Price			88.80
Swaps - NYMEX WTI 2016 | Crude Oil Commodity Contract
Derivative [Line Items]
Settlement Period			2016
Index			NYMEX WTI
Bbls Per Day | bbl / d			9,000
Weighted Average Fixed Price			80.30
Swaps - NYMEX HH 2015 | Natural Gas Commodity Contract
Derivative [Line Items]
Settlement Period			2015
Index			NYMEX HH
Bbls Per Day | MMBTU / d			140,000
Weighted Average Fixed Price | $ / MMBTU			4.30
Swaps - NYMEX HH 2016 | Natural Gas Commodity Contract
Derivative [Line Items]
Settlement Period			2016
Index			NYMEX HH
Bbls Per Day | MMBTU / d	[1]		40,000
Weighted Average Fixed Price | $ / MMBTU	[1]		3.60
Two Way Collars - NYMEX HH 2016 | Crude Oil Commodity Contract
Derivative [Line Items]
Settlement Period			2016
Index			NYMEX WTI
Bbls Per Day | bbl / d			1,000
Weighted Average Floor Price			60.00
Weighted Average Ceiling Price			70.00
Two Way Collars - NYMEX HH 2016 | Natural Gas Commodity Contract
Derivative [Line Items]
Settlement Period			2016
Index			NYMEX HH
Bbls Per Day | MMBTU / d			30,000
Weighted Average Floor Price | $ / MMBTU			3.00
Weighted Average Ceiling Price | $ / MMBTU			3.50
Rosetta Resources, Inc [Member] | Subsequent Event [Member] | Two Way Collars - NYMEX WTI 2015 | Crude Oil Commodity Contract
Derivative [Line Items]
Settlement Period		2015
Index		–
Bbls Per Day | bbl / d		8,000
Weighted Average Floor Price		55.00
Weighted Average Ceiling Price		84.80
Rosetta Resources, Inc [Member] | Subsequent Event [Member] | Swaps - NYMEX WTI 2015 | Crude Oil Commodity Contract
Derivative [Line Items]
Settlement Period		2015
Index		–
Bbls Per Day | bbl / d		12,000
Weighted Average Fixed Price		89.81
Rosetta Resources, Inc [Member] | Subsequent Event [Member] | Swaps - NYMEX WTI 2016 | Crude Oil Commodity Contract
Derivative [Line Items]
Settlement Period		2016
Index		–
Bbls Per Day | bbl / d		6,000
Weighted Average Fixed Price		90.28
Rosetta Resources, Inc [Member] | Subsequent Event [Member] | Swaps - NYMEX HH 2015 | Natural Gas Commodity Contract
Derivative [Line Items]
Settlement Period		2015
Index		–
Bbls Per Day | MMBTU / d		50,000
Weighted Average Fixed Price | $ / MMBTU		4.13
Rosetta Resources, Inc [Member] | Subsequent Event [Member] | Two Way Collars - NYMEX HH 2015 | Natural Gas Commodity Contract
Derivative [Line Items]
Settlement Period		2015
Index		–
Bbls Per Day | MMBTU / d		50,000
Weighted Average Floor Price | $ / MMBTU		3.60
Weighted Average Ceiling Price | $ / MMBTU		5.04
Rosetta Resources, Inc [Member] | Subsequent Event [Member] | Swaps - NYMEX HH 2016 | Natural Gas Commodity Contract
Derivative [Line Items]
Settlement Period		2016
Index		–
Bbls Per Day | MMBTU / d		30,000
Weighted Average Fixed Price | $ / MMBTU		4.04
Rosetta Resources, Inc [Member] | Subsequent Event [Member] | Two Way Collars - NYMEX HH 2016 | Natural Gas Commodity Contract
Derivative [Line Items]
Settlement Period		2016
Index		–
Bbls Per Day | MMBTU / d		30,000
Weighted Average Floor Price | $ / MMBTU		3.50
Weighted Average Ceiling Price | $ / MMBTU		5.60
Rosetta Resources, Inc [Member] | Subsequent Event [Member] | Swaps - NGL Ethane | NGL Commodity Contract
Derivative [Line Items]
Settlement Period		2015
Index		NGL-Ethane
Bbls Per Day | bbl / d		2,476
Weighted Average Fixed Price		11.18
Rosetta Resources, Inc [Member] | Subsequent Event [Member] | Swaps - NGL Propane | NGL Commodity Contract
Derivative [Line Items]
Settlement Period		2015
Index		NGL-Propane
Bbls Per Day | bbl / d		1,750
Weighted Average Fixed Price		43.35
Rosetta Resources, Inc [Member] | Subsequent Event [Member] | Swaps - NGL Isobutane | NGL Commodity Contract
Derivative [Line Items]
Settlement Period		2015
Index		NGL-Isobutane
Bbls Per Day | bbl / d		617
Weighted Average Fixed Price		53.05
Rosetta Resources, Inc [Member] | Subsequent Event [Member] | Swaps - NGL Normal Butane | NGL Commodity Contract
Derivative [Line Items]
Settlement Period		2015
Index		NGL-Normal Butane
Bbls Per Day | bbl / d		579
Weighted Average Fixed Price		52.53
Rosetta Resources, Inc [Member] | Subsequent Event [Member] | Swaps - NGL Pentanes Plus | NGL Commodity Contract
Derivative [Line Items]
Settlement Period		2015
Index		NGL-Pentanes Plus
Bbls Per Day | bbl / d		579
Weighted Average Fixed Price		77.72

[1] (1) We have entered into natural gas derivative contracts which give counterparties the option to extend for an additional 12-month period. Options covering a notional volume of 30,000 MMBtu/d are exercisable on December 22 and 23, 2016. If the counterparties exercise all such options, the notional volume of our existing natural gas derivative contracts will increase by 30,000 MMBtu/d at an average price of $3.50 per MMBtu for each month during the period January 1, 2017 through December 31, 2017.