Fair Value Measurement (Details 5) $ in Millions	9 Months Ended
Sep. 30, 2015 USD ($)
Fair Value Measurement
Impairment of unproved properties	$ 0.0
Impairment of proved properties	$ 0.0

Represents the amount of impairment related to unproved oil and gas property during the period.

No definition available.

Name:	jone_UnprovedOilAndGasPropertyImpairment
Namespace Prefix:	jone_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration