INCOME TAXES - Deferred (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Deferred tax assets:
Stock-based compensation	$ 1,846	$ 1,490
Net operating losses	3,184	168
Foreign tax credits	33,301	28,148
Amortizable tax goodwill	52,783	57,926
Other	4,575	4,175
Total deferred tax assets	95,689	91,907
Valuation allowance	(46,844)	(62,721)
Net deferred tax assets	48,845	29,186
Deferred tax liabilities:
Mineral property basis	(124,373)	(70,922)
Unrealized foreign exchange gains	(582)	(582)
Other	(143)	(199)
Total deferred tax liabilities	(125,098)	(71,703)
Total net deferred taxes	(76,253)	(42,517)
Net operating loss carry forwards	3,200	200
Deferred tax liability for mineral property basis	124,373	70,922
Unrecognized Tax Benefits	$ 0	$ 0	$ 652	$ 25,389	$ 36,547