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Subsequent Events (Details) bbl in Thousands			1 Months Ended
	Nov. 06, 2017 USD ($) MMcf / d	Oct. 19, 2017 shares	Oct. 31, 2017 $ / bbl bbl	Oct. 14, 2017 USD ($)	Oct. 01, 2017 USD ($) ft²	Apr. 10, 2017 USD ($)	Mar. 31, 2017 USD ($)
Subsequent Event [Member] | Crude Oil [Member] | 2018 Swaps and Two-way Collar Options [Member]
Subsequent Event [Line Items]
Total notional amount of oil (in Bbls) | bbl			730
Weighted average floor price (in dollars per barrel) | $ / bbl			3.07
Office Space Lease Agreement [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Additional square feet of rentable space | ft²					8,915
Increase in future minimum rental commitments					$ 33,300,000
Line of Credit [Member] | Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Credit facility borrowing base						$ 1,600,000,000	$ 1,150,000,000
Line of credit facility, current borrowing capacity						$ 1,150,000,000
Line of Credit [Member] | Revolving Credit Facility [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Credit facility borrowing base				$ 1,600,000,000
Line of credit facility, current borrowing capacity				$ 1,150,000,000
Affiliated Entity [Member] | Contract for Construction of Natural Gas Processing Plant [Member] | Gas Gathering, Compression, Processing and Gas Lift Agreement [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Processing plant capacity (MMcfd) | MMcf / d	200
Affiliated Entity [Member] | Estimated Reimbursements, Plant II [Member] | Gas Gathering, Compression, Processing and Gas Lift Agreement [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Related party transaction	$ 66,700,000
Phantom Units [Member] | Oasis Midstream Partners, LP [Member] | Subsequent Event [Member]
Subsequent Event [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period | shares		101,500
Vesting period		3 years

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The average floor rate on a group of price risk derivatives such as floors or collars. A payment or receipt is triggered if the market rate falls below the floor rate on the contract.

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Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

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