Condensed Consolidating Financial Information - Schedule of Condensed Consolidating Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income (loss)	$ (41,064)	$ (33,942)	$ (671)	$ (188,328)
Adjustments to reconcile net income (loss) including non-controlling interests to net cash provided by (used in) operating activities:
Equity in earnings of subsidiaries	0	0	0	0
Depreciation, depletion and amortization	132,289	111,948	384,246	356,885
Loss on extinguishment of debt	0	13,793	0	(4,865)
Loss on sale of properties			0	1,305
Impairment	139	382	6,021	3,967
Deferred income taxes			(470)	(96,818)
Derivative instruments	54,310	(20,847)	(52,297)	55,624
Equity-based compensation expenses			20,451	18,761
Deferred financing costs amortization and other			12,666	10,174
Working capital and other changes:
Change in accounts receivable			(81,022)	11,349
Change in inventory			(235)	2,559
Change in prepaid expenses			823	1,168
Change in other current assets			276	(240)
Change in long-term inventory and other assets			(12,843)	(148)
Change in accounts payable, interest payable and accrued liabilities			32,282	(41,991)
Change in other current liabilities			(10,490)	(6,000)
Change in other liabilities			0	17
Net cash provided by operating activities			298,737	123,419
Cash flows from investing activities:
Capital expenditures			(443,649)	(340,314)
Proceeds from sale of properties			4,000	12,333
Costs related to sale of properties			0	(310)
Derivative settlements			(804)	115,576
Advances from joint interest partners			(2,502)	544
Net cash used in investing activities			(442,955)	(212,171)
Cash flows from financing activities:
Proceeds from revolving credit facility			764,000	835,000
Principal payments on revolving credit facility			(732,000)	(778,000)
Repurchase of senior unsecured notes			0	(435,907)
Proceeds from issuance of senior unsecured convertible notes			0	300,000
Deferred financing costs			(96)	(8,811)
Proceeds from sale of common stock			0	182,791
Purchases of treasury stock			(6,182)	(2,275)
Investment in / capital contributions from subsidiaries			0	0
Other			(55)	0
Proceeds from sale of Oasis Midstream common units, net of offering costs			115,813	0
Net cash provided by financing activities			141,480	92,798
Increase (decrease) in cash and cash equivalents			(2,738)	4,046
Beginning of period			11,226	9,730
End of period	8,488	13,776	8,488	13,776
Intercompany Eliminations [Member]
Cash flows from operating activities:
Net income (loss)	11,994		(75,984)	110,454
Adjustments to reconcile net income (loss) including non-controlling interests to net cash provided by (used in) operating activities:
Equity in earnings of subsidiaries	(11,994)	(1,140)	75,984	(110,454)
Depreciation, depletion and amortization	0	0	0	0
Loss on extinguishment of debt		0		0
Loss on sale of properties				0
Impairment	0	0	0	0
Deferred income taxes			0	0
Derivative instruments	0	0	0	0
Equity-based compensation expenses			0	0
Deferred financing costs amortization and other			0	0
Working capital and other changes:
Change in accounts receivable			(103,778)	99,943
Change in inventory			0	0
Change in prepaid expenses			0	0
Change in other current assets			0	0
Change in long-term inventory and other assets			0	0
Change in accounts payable, interest payable and accrued liabilities			103,778	(99,943)
Change in other current liabilities			0	0
Change in other liabilities				0
Net cash provided by operating activities			0	0
Cash flows from investing activities:
Capital expenditures			0	0
Proceeds from sale of properties			0	0
Costs related to sale of properties				0
Derivative settlements			0	0
Advances from joint interest partners			0	0
Net cash used in investing activities			0	0
Cash flows from financing activities:
Proceeds from revolving credit facility			0	0
Principal payments on revolving credit facility			0	0
Repurchase of senior unsecured notes				0
Proceeds from issuance of senior unsecured convertible notes				0
Deferred financing costs			0	0
Proceeds from sale of common stock				0
Purchases of treasury stock			0	0
Investment in / capital contributions from subsidiaries			0	0
Other			0
Proceeds from sale of Oasis Midstream common units, net of offering costs			0
Net cash provided by financing activities			0	0
Increase (decrease) in cash and cash equivalents			0	0
Beginning of period			0	0
End of period	0	0	0	0
Parent/Issuer [Member]
Cash flows from operating activities:
Net income (loss)	(41,214)		(821)	(188,328)
Adjustments to reconcile net income (loss) including non-controlling interests to net cash provided by (used in) operating activities:
Equity in earnings of subsidiaries	13,599	1,140	(74,379)	110,454
Depreciation, depletion and amortization	0	0	0	0
Loss on extinguishment of debt		13,793		(4,865)
Loss on sale of properties				0
Impairment	0	0	0	0
Deferred income taxes			(44,923)	(34,891)
Derivative instruments	0	0	0	0
Equity-based compensation expenses			19,740	18,195
Deferred financing costs amortization and other			11,399	5,371
Working capital and other changes:
Change in accounts receivable			115,996	(85)
Change in inventory			0	0
Change in prepaid expenses			(190)	(135)
Change in other current assets			0	0
Change in long-term inventory and other assets			0	100
Change in accounts payable, interest payable and accrued liabilities			(12,571)	70,285
Change in other current liabilities			0	0
Change in other liabilities				0
Net cash provided by operating activities			14,251	(23,899)
Cash flows from investing activities:
Capital expenditures			0	0
Proceeds from sale of properties			0	0
Costs related to sale of properties				0
Derivative settlements			0	0
Advances from joint interest partners			0	0
Net cash used in investing activities			0	0
Cash flows from financing activities:
Proceeds from revolving credit facility			0	0
Principal payments on revolving credit facility			0	0
Repurchase of senior unsecured notes				(435,907)
Proceeds from issuance of senior unsecured convertible notes				300,000
Deferred financing costs			0	(7,880)
Proceeds from sale of common stock				182,791
Purchases of treasury stock			(6,182)	(2,275)
Investment in / capital contributions from subsidiaries			(8,002)	(13,517)
Other			(55)
Proceeds from sale of Oasis Midstream common units, net of offering costs			0
Net cash provided by financing activities			(14,239)	23,212
Increase (decrease) in cash and cash equivalents			12	(687)
Beginning of period			166	777
End of period	178	90	178	90
Combined Guarantor Subsidiaries [Member]
Cash flows from operating activities:
Net income (loss)	(13,449)		74,529	(110,454)
Adjustments to reconcile net income (loss) including non-controlling interests to net cash provided by (used in) operating activities:
Equity in earnings of subsidiaries	(1,605)	0	(1,605)	0
Depreciation, depletion and amortization	132,035	111,948	383,992	356,885
Loss on extinguishment of debt		0		0
Loss on sale of properties				1,305
Impairment	139	382	6,021	3,967
Deferred income taxes			44,453	(61,927)
Derivative instruments	54,310	(20,847)	(52,297)	55,624
Equity-based compensation expenses			711	566
Deferred financing costs amortization and other			1,260	4,803
Working capital and other changes:
Change in accounts receivable			(87,610)	(88,509)
Change in inventory			(235)	2,559
Change in prepaid expenses			1,013	1,303
Change in other current assets			276	(240)
Change in long-term inventory and other assets			(12,843)	(248)
Change in accounts payable, interest payable and accrued liabilities			(62,542)	(12,333)
Change in other current liabilities			(10,490)	(6,000)
Change in other liabilities				17
Net cash provided by operating activities			284,633	147,318
Cash flows from investing activities:
Capital expenditures			(443,649)	(340,314)
Proceeds from sale of properties			4,000	12,333
Costs related to sale of properties				(310)
Derivative settlements			(804)	115,576
Advances from joint interest partners			(2,502)	544
Net cash used in investing activities			(442,955)	(212,171)
Cash flows from financing activities:
Proceeds from revolving credit facility			764,000	835,000
Principal payments on revolving credit facility			(732,000)	(778,000)
Repurchase of senior unsecured notes				0
Proceeds from issuance of senior unsecured convertible notes				0
Deferred financing costs			1,858	(931)
Proceeds from sale of common stock				0
Purchases of treasury stock			0	0
Investment in / capital contributions from subsidiaries			121,714	13,517
Other			0
Proceeds from sale of Oasis Midstream common units, net of offering costs			0
Net cash provided by financing activities			155,572	69,586
Increase (decrease) in cash and cash equivalents			(2,750)	4,733
Beginning of period			11,060	8,953
End of period	8,310	$ 13,686	8,310	$ 13,686
Non-Guarantor Subsidiaries [Member]
Cash flows from operating activities:
Net income (loss)	1,605		1,605
Adjustments to reconcile net income (loss) including non-controlling interests to net cash provided by (used in) operating activities:
Equity in earnings of subsidiaries	0		0
Depreciation, depletion and amortization	254		254
Impairment	0		0
Deferred income taxes			0
Derivative instruments	0		0
Equity-based compensation expenses			0
Deferred financing costs amortization and other			7
Working capital and other changes:
Change in accounts receivable			(5,630)
Change in inventory			0
Change in prepaid expenses			0
Change in other current assets			0
Change in long-term inventory and other assets			0
Change in accounts payable, interest payable and accrued liabilities			3,617
Change in other current liabilities			0
Net cash provided by operating activities			(147)
Cash flows from investing activities:
Capital expenditures			0
Proceeds from sale of properties			0
Derivative settlements			0
Advances from joint interest partners			0
Net cash used in investing activities			0
Cash flows from financing activities:
Proceeds from revolving credit facility			0
Principal payments on revolving credit facility			0
Deferred financing costs			(1,954)
Purchases of treasury stock			0
Investment in / capital contributions from subsidiaries			(113,712)
Other			0
Proceeds from sale of Oasis Midstream common units, net of offering costs			115,813
Net cash provided by financing activities			147
Increase (decrease) in cash and cash equivalents			0
Beginning of period			0
End of period	$ 0		$ 0

The total of the component of interest expense representing the noncash expenses charged against earnings in the period to amortize the long-term deferred financing costs and other income (expense) included in net income that results in no cash inflows or outflows in the period. Includes noncash adjustments to reconcile net income (loss) to cash provided by (used in) operating activities that are not separately disclosed.

No definition available.