Subsequent Events (Details) - Malaysia [Member] - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2017	Apr. 01, 2017	Mar. 31, 2017
Subsequent Event [Line Items]
Working interest			8.60%
Scenario, Forecast [Member]
Subsequent Event [Line Items]
Debt decrease	$ 56.7
Subsequent Event [Member]
Subsequent Event [Line Items]
Working interest		6.70%