LONG-TERM DEBT - Narrative (Details) $ in Thousands, shares in Millions	Apr. 02, 2025 USD ($) oz	Feb. 28, 2025 d	Jan. 15, 2025 shares	Mar. 31, 2025 USD ($) oz	Mar. 28, 2025	Dec. 31, 2024 USD ($)
Debt Instrument [Line Items]
Current portion of long-term debt				$ 40,825		$ 37,842
Orion Convertible Loan | Convertible Loans
Debt Instrument [Line Items]
Interest rate, effective (as percent)			16.72%			18.64%
Current portion of long-term debt				0
Convertible Debentures | Convertible Loans
Debt Instrument [Line Items]
Interest rate, effective (as percent)		9.40%				9.20%
Threshold trading days | d		5
Holders discount percentage		15.00%
Debt conversion percentage		85.00%
Consecutive trading days | d		10
Redemption price, percentage		104.00%
Current portion of long-term debt				0
Gold Prepay - gold price derivative
Debt Instrument [Line Items]
Interest rate, effective (as percent)					32.20%	31.90%
Current portion of long-term debt				27,870
Gold Prepay - gold price derivative | Subsequent Event
Debt Instrument [Line Items]
Number of ounces delivered in aggregate | oz	6,420
Silver Purchase Agreement - silver price derivative
Debt Instrument [Line Items]
Interest rate, effective (as percent)					21.40%
Current portion of long-term debt				$ 7,255
Silver Purchase Agreement - silver price derivative | Subsequent Event
Debt Instrument [Line Items]
Number of ounces delivered in aggregate | oz	320,000
New Gold Prepay Agreement
Debt Instrument [Line Items]
Number of ounces delivered in aggregate | oz				6,864
New Silver Purchase Agreement
Debt Instrument [Line Items]
Number of ounces delivered in aggregate | oz				345,549
New Gold Prepay And Silver Purchase Agreement | Subsequent Event
Debt Instrument [Line Items]
Gross proceeds from debt issuance	$ 31,000
2025 Orion Warrants | Orion Convertible Loan
Debt Instrument [Line Items]
Warrants issued (in shares) | shares			5.0