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Percentage Of Performance Share Awards Based On Shareholder Return

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Equity-Based Compensation - Additional Information (Details) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019 USD ($) shares	Sep. 30, 2018 USD ($)	Sep. 30, 2019 USD ($) day $ / shares shares	Sep. 30, 2018 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation expenses \| $			$ 26,370	$ 21,586
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			3 years
Stock granted (in shares) \| shares			4,051,325
Granted, weighted average grant date fair value per unit (in usd per share) \| $ / shares			$ 6.62
Equity-based compensation expenses \| $	$ 5,800	$ 5,100	$ 18,400	14,700
Performance Share Unit Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock granted (in shares) \| shares			1,685,090
Granted, weighted average grant date fair value per unit (in usd per share) \| $ / shares			$ 6.80
Equity-based compensation expenses \| $	$ 2,500	2,200	$ 7,500	6,300
Right to received shares of common stock (in shares) \| shares	1		1
Number of trading days \| day			30
Performance Share Unit Awards \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PSU granted percentage of earnings (as a percent)			0.00%
Performance Share Unit Awards \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
PSU granted percentage of earnings (as a percent)			200.00%
Phantom Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			3 years
Stock granted (in shares) \| shares			341,290
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period			1 year
Stock granted (in shares) \| shares			16,170
Granted, weighted average grant date fair value per unit (in usd per share) \| $ / shares			$ 18.57
Oasis Midstream Partners, LP \| Phantom Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted, weighted average grant date fair value per unit (in usd per share) \| $ / shares			$ 18.57
Equity-based compensation expenses \| $	$ 100	200	$ 1,800	400
OMP General Partner LLC \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity-based compensation expenses \| $	$ 100	$ 100	$ 300	$ 300