Acquisitions and Divestitures - Pro Forma Revenue Statement (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Business Acquisition [Line Items]
Revenues	$ 24,287	$ 26,913	$ 49,536	$ 45,745
Net income (loss) attributable to common stockholders	$ (14,193)	$ (12,794)	$ (11,179)	$ (25,566)
Net income (loss) per common share, basic and diluted	$ (0.65)	$ (1.70)	$ (0.51)	$ (3.40)
Pro Forma Adjustments
Business Acquisition [Line Items]
Net income (loss) attributable to common stockholders	$ 5,552	$ (5,194)	$ 922	$ (10,427)
SN Marquis LLC
Business Acquisition [Line Items]
Revenues	5,373	8,149	11,983	14,917
Net income (loss) attributable to common stockholders	3,472	4,596	7,688	7,902
Battlecat Oil & Gas, LLC
Business Acquisition [Line Items]
Revenues	779	961	1,802	1,829
Net income (loss) attributable to common stockholders	240	648	603	1,101
LRAI
Business Acquisition [Line Items]
Revenues	18,135	17,803	35,751	28,999
Net income (loss) attributable to common stockholders	$ (23,457)	$ (12,844)	$ (20,392)	$ (24,142)
Net income (loss) per common share, basic and diluted	$ (1.07)	$ (1.71)	$ (0.93)	$ (3.21)