CRUDE OIL AND NATURAL GAS PROPERTIES - Unproved Properties (Details) - a	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Oil and Gas Disclosure [Abstract]
Area of unproven leasehold interests	45,388	25,880
Anticipated future period over which excluded costs will become subject to depletion	5 years

Unproven acreage is considered to be those lease acres on which geologic and/or engineering data similar to that used in estimates of proven; but technical, contractual, economic, or regulatory uncertainties preclude such reserves being classified as proven.

No definition available.

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Namespace Prefix:	nog_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant