Subsequent Events - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended		3 Months Ended						9 Months Ended
	Nov. 05, 2025	Oct. 31, 2025	Nov. 06, 2025	Nov. 04, 2025	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024	Apr. 29, 2025
Subsequent events
Common stock dividend declared (in USD per share)					$ 0.11	$ 0.11	$ 0.11	$ 0.11	$ 0.11	$ 0.11
Asset acquisition - consideration transferred											$ 60,942	$ 54,339
Appalachian
Subsequent events
Asset acquisition - consideration transferred											16,729	3,111
Permian
Subsequent events
Asset acquisition - consideration transferred											$ 44,213	$ 43,922
Line of Credit
Subsequent events
Capacity for aggregate elected commitments							$ 325,000						$ 375,000
Line of Credit \| Minimum \| Secured Overnight Financing Rate (SOFR) \| Credit Spread Adjustment Scenario 1
Subsequent events
Additional to margin added to interest rate											2.00%
Line of Credit \| Maximum \| Secured Overnight Financing Rate (SOFR) \| Credit Spread Adjustment Scenario 1
Subsequent events
Additional to margin added to interest rate											3.00%
Subsequent Event
Subsequent events
Common stock dividend declared (in USD per share)			$ 0.11
Subsequent Event \| Permian Basin and Appalachian Basin Acquisitions
Subsequent events
Asset acquisition - consideration transferred				$ 16,500
Subsequent Event \| Appalachian
Subsequent events
Asset acquisition - consideration transferred				13,700
Subsequent Event \| Permian
Subsequent events
Asset acquisition - consideration transferred				$ 2,800
Subsequent Event \| Line of Credit \| Credit Spread Adjustment Scenario 1
Subsequent events
Debt instrument, basis spread	1.00%
Variable interest rate adjustment term		1 month
Subsequent Event \| Line of Credit \| Federal funds rate
Subsequent events
Debt instrument, basis spread	0.50%
Subsequent Event \| Line of Credit \| Secured Overnight Financing Rate (SOFR) \| Credit Spread Adjustment Scenario 1
Subsequent events
Variable interest rate adjustment term	1 month
Subsequent Event \| Line of Credit \| Minimum
Subsequent events
Debt instrument, basis spread	2.75%
Subsequent Event \| Line of Credit \| Minimum \| Base Rate \| Credit Spread Adjustment Scenario 1
Subsequent events
Additional to margin added to interest rate	1.75%
Subsequent Event \| Line of Credit \| Maximum
Subsequent events
Debt instrument, basis spread	3.75%
Subsequent Event \| Line of Credit \| Maximum \| Base Rate \| Credit Spread Adjustment Scenario 1
Subsequent events
Additional to margin added to interest rate	2.75%
Subsequent Event \| 2029 Senior Notes \| Senior Unsecured Notes
Subsequent events
Debt instrument, stated percentage	8.875%
Subsequent Event \| 2029 Senior Notes \| Line of Credit
Subsequent events
Capacity for aggregate elected commitments	$ 375,000
Subsequent Event \| 2029 Senior Notes \| Unsecured Debt
Subsequent events
Debt instrument, aggregate principle amount	$ 350,000
Debt instrument, unsecured notes percentage	96.00%

Granite Ridge Resources, Inc. 10-Q