Revenues - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
	Dec. 31, 2016	Oct. 01, 2016	Dec. 31, 2018	Dec. 31, 2017
Successor
Disaggregation of Revenue [Line Items]
Revenues	$ 98,456		$ 349,395	$ 357,299
Predecessor
Disaggregation of Revenue [Line Items]
Revenues		$ 293,809
Oil | Successor
Disaggregation of Revenue [Line Items]
Revenues	57,093		214,651	202,539
Oil | Predecessor
Disaggregation of Revenue [Line Items]
Revenues		159,023
NGL | Successor
Disaggregation of Revenue [Line Items]
Revenues	14,756		67,111	61,322
NGL | Predecessor
Disaggregation of Revenue [Line Items]
Revenues		42,541
Natural gas | Successor
Disaggregation of Revenue [Line Items]
Revenues	26,458		66,964	92,349
Natural gas | Predecessor
Disaggregation of Revenue [Line Items]
Revenues		78,407
Other | Successor
Disaggregation of Revenue [Line Items]
Revenues	$ 149		$ 669	$ 1,089
Other | Predecessor
Disaggregation of Revenue [Line Items]
Revenues		$ 13,838