Subsequent Events - Additional Information (Details) - Drilling Rig - USD ($)		6 Months Ended
	Jul. 21, 2017	Jun. 30, 2017
Subsequent Event [Line Items]
Drilling rig termination fee description		The early termination rate is equal to the daily drilling rate less $7,000 (or $11,500) times the number of days remaining on the contract term. Using the $11,500 early termination rate, the minimum remaining commitment per the terms of the agreement is approximately $2.1 million
Subsequent Event
Subsequent Event [Line Items]
Daily drilling rate	$ 18,500,000
Leased acreage expiration date	Jan. 16, 2018
Subsequent Event | Minimum
Subsequent Event [Line Items]
Early termination fee	$ 7,000,000
Drilling rig remaining commitment	2,100,000
Subsequent Event | Maximum
Subsequent Event [Line Items]
Early termination fee	$ 11,500,000