Gulfport Energy Corporation Quarterly report pursuant to Section 13 or 15(d)

Derivative Instruments (Net (Loss) Gain on Derivative Instruments) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Derivative [Line Items]
Net (loss) gain on natural gas, oil, and NGL derivatives	$ (22,860)	$ 35,281	$ 141,588	$ (44,376)
Natural gas derivatives
Derivative [Line Items]
Net (loss) gain on natural gas, oil, and NGL derivatives	(7,077)	33,167	135,868	(43,454)
Oil derivatives
Derivative [Line Items]
Net (loss) gain on natural gas, oil, and NGL derivatives	(6,571)	1,708	12,477	362
Natural gas liquids derivatives
Derivative [Line Items]
Net (loss) gain on natural gas, oil, and NGL derivatives	$ (9,212)	$ 406	$ (6,757)	$ (1,284)