Leases - Schedule of Components of Lease Costs (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Operating leases:
Operating lease cost charged to profit and loss	$ 138	$ 157
Finance leases:
Interest on lease liabilities	668	796
Depreciation on right-of-use assets	2,321	2,533
Total finance lease cost	2,988	3,329
Less: Lease cost capitalized to unproved properties	(2,988)	(3,329)
Finance lease cost charged to profit and loss	$ 0	$ 0