75000 - Document - Cover Page
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75010 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited)
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75020 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) 2
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75030 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)
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75040 - Statement - Condensed Consolidated Balance Sheets
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75050 - Statement - Condensed Consolidated Balance Sheets (Parentheticals)
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75060 - Statement - Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited)
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75070 - Statement - Condensed Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parentheticals)
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995455 - Disclosure - Note 1 - Basis of Preparation of Financial Statements
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995465 - Disclosure - Note 2 - Sale of Hecla Quebec Inc. and Discontinued Operations
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995475 - Disclosure - Note 3 - Business Segments and Sales of Products
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995485 - Disclosure - Note 4 - Income and Mining Taxes
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995495 - Disclosure - Note 5 - Employee Benefit Plans
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995505 - Disclosure - Note 6 - Earnings (Loss) Per Common Share
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995515 - Disclosure - Note 7 - Stockholders' Equity
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995525 - Disclosure - Note 8 - Debt, Credit Agreement and Leases
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995535 - Disclosure - Note 9 - Derivative Instruments
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995545 - Disclosure - Note 10 - Fair Value Measurement
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995555 - Disclosure - Note 11 - Product Inventories
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995565 - Disclosure - Note 12 - Commitments, Contingencies and Obligations
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995575 - Disclosure - Note 13 - Recent Accounting Pronouncements
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995585 - Disclosure - Note 14 - Subsequent Events
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995595 - Disclosure - Note 2 - Sale of Hecla Quebec Inc. and Discontinued Operations (Tables)
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995605 - Disclosure - Note 3- Business Segments and Sales of Products (Tables)
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995615 - Disclosure - Note 4 - Income and Mining Taxes (Tables)
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995625 - Disclosure - Note 5 - Employee Benefit Plans (Tables)
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995635 - Disclosure - Note 6 - Earnings (Loss) Per Common Share (Tables)
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995645 - Disclosure - Note 7 - Stockholders' Equity (Tables)
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995655 - Disclosure - Note 8 - Debt, Credit Agreement and Leases (Tables)
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995665 - Disclosure - Note 9 - Derivative Instruments (Tables)
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995675 - Disclosure - Note 10 - Fair Value Measurement (Tables)
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995685 - Disclosure - Note 11. Product Inventories (Tables)
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995695 - Disclosure - Note 1 - Basis of Preparation of Financial Statements (Details Textual)
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995705 - Disclosure - Note 1 - Basis of Preparation of Financial Statements (Additional Information) (Details)
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995715 - Disclosure - Note 2 - Sale of Hecla Quebec Inc. and Discontinued Operations (Additional Information) (Details)
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995725 - Disclosure - Note 2 - Sale of Hecla Quebec Inc. and Discontinued Operations - Statement of Discountinued Operation (Details)
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995735 - Disclosure - Note 2 - Sale of Hecla Quebec Inc. and Discontinued Operations - Reconciliation of Assets and Liabilities (Details)
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995745 - Disclosure - Note 3 - Business Segments and Sales of Products (Details Textual)
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995755 - Disclosure - Note 3 - Business Segments and Sales of Products - Information About Reportable Segments (Details)
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995765 - Disclosure - Note 3 - Business Segments and Sales of Products - Information About Reportable Segments (Parenthetical) (Details)
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995775 - Disclosure - Note 3 - Business Segments and Sales of Products - Sales of Products (Details)
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995785 - Disclosure - Note 4 - Income and Mining Taxes - Major Components of Income Tax Provision (Benefit) (Details)
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995795 - Disclosure - Note 4 - Income and Mining Taxes (Additional Information) (Details)
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995805 - Disclosure - Note 5 - Employee Benefit Plans (Details Textual)
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995815 - Disclosure - Note 5 - Employee Benefit Plans - Net Periodic Pension Cost (Details)
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995825 - Disclosure - Note 6 - Earnings (Loss) Per Common Share - Net Income Per Common Share (Details)
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995835 - Disclosure - Note 7 - Stockholders' Equity (Details Textual)
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995845 - Disclosure - Note 7 - Stockholders' Equity - Summary of Grants Awarded (Details)
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995855 - Disclosure - Note 7 - Stockholders' Equity - Schedule of Accumulated other comprehensive income (loss) (Details)
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995865 - Disclosure - Note 8 - Debt, Credit Agreement and Leases (Details Textual)
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995875 - Disclosure - Note 8 - Debt, Credit Agreement and Leases - Debt Summary (Details)
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995885 - Disclosure - Note 8 - Debt, Credit Agreement and Leases - Future Payments of Long-term Debt and Finance and Operating Leases (Details)
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995895 - Disclosure - Note 8 - Debt, Credit Agreement and Leases - Future Payments of Long-term Debt and Finance and Operating Leases (Details) 2
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995905 - Disclosure - Note 8 - Debt, Credit Agreement and Leases - Future Payments of Long-term Debt and Finance and Operating Leases (Details) 3
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995915 - Disclosure - Note 9 - Derivative Instruments (Details Textual)
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995925 - Disclosure - Note 9 - Derivative Instruments - Foreign Currency (Details)
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995935 - Disclosure - Note 9 - Derivative Instruments - Summary of Forward Sales Contracts (Details)
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995945 - Disclosure - Note 9 - Derivative Instruments - Summarize the Quantities of Metals Committed (Details)
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995955 - Disclosure - Note 9 - Derivative Instruments - Fair Value of Forward and Put Option Contracts (Details)
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995965 - Disclosure - Note 9 - Derivative Instruments - Summary of collar positions to provide price protection on Keno Hill's forecasted silver production (Details)
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995975 - Disclosure - Note 10 - Fair Value Measurement (Details Textual)
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995985 - Disclosure - Note 10 - Fair Value Measurement - Details of Fair Value Adjustment (Details)
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995995 - Disclosure - Note 10 - Fair Value Measurement - Assets and Liabilities Accounted for at Fair Value (Details)
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996005 - Disclosure - Note 11 - Product Inventories - Schedule of Our Major Components of Product Inventories (Details)
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996015 - Disclosure - Note 12 - Commitments, Contingencies and Obligations (Details Textual)
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996025 - Disclosure - Note 14- Subsequent Events (Additional Information) (Details)
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Equity securities
Equity Securities, FV-NI
Equity Securities, FV-NI, Total
In-process [Member]
In-process [Member]
In-process
Retirement Plan Type [Axis]
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax
Change in fair value of derivative contracts designated as hedge transactions and other
Segments [Domain]
Reduction in future payments, Percentage
Reduction in Futute Payments, Rate
Reduction in Futute Payments, Rate
Preferred stock dividends
Series B Preferred Stock dividends declared
Dividends, Preferred Stock
Dividends, Preferred Stock, Total
Lessee, Operating Lease, Liability, to be Paid, Rolling Year Three
2029
Gold 2026 Settlements For Provisional Sales [Member]
Gold Two Thousand Twenty Six Settlements For Provisional Sales [Member]
Gold Two Thousand Twenty Six Settlements For Provisional Sales [Member]
Total
Finance Lease, Liability
Finance lease, liability
Entity Incorporation, State or Country Code
Series B preferred stock, shares issued (in shares)
Preferred Stock, Shares Issued
Statement of Financial Position Location, Balance [Domain]
Other comprehensive loss increase adjustments income tax
Other Comprehensive Loss Increase Decrease Adjustments Income Taxes
Other comprehensive loss increase (decrease) adjustments income taxes.
Non-current derivatives assets
Derivative Asset, Noncurrent
Other non-current assets
Accrued reclamation and closure costs
Accrued Reclamation Costs, Current
Revision of Prior Period [Axis]
Restricted Stock September Fourth Two Thousand Twenty Five [Member]
Restricted Stock September Fourth Two Thousand Twenty Five [Member]
Restricted stock September 4, 2025 [Member]
Significant non-cash investing and financing activities:
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Two Thousand Twenty Six Settlements For Forecasted Sales [Member]
Two Thousand Twenty Six Settlements For Forecasted Sales [Member]
2026 Settlements For forecasted Sales [Member]
Schedule of Long-Term Debt Instruments [Table Text Block]
Schedule of Long-Term Debt
Zinc Two Thousand Twenty Five Settlements For Provisional Sales [Member]
Zinc Two Thousand Twenty Five Settlements For Provisional Sales [Member]
Zinc 2025 Settlements for Provisional Sales [Member]
Entity Current Reporting Status
Other Comprehensive Income (Loss), before Reclassifications, before Tax
Other comprehensive loss before reclassification
Dividends Payable, Amount Per Share
Dividend per share
Disposal Group, Including Discontinued Operation, Inventory
Discontinued Operation, Product inventories
Other operating expenses:
Operating Expenses [Abstract]
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Receivable, Net
Disposal Group, Including Discontinued Operation, Accounts Receivable
Discontinued Operation, Accounts receivable
Fair Value, Inputs, Level 2 [Member]
Disposal Group, Including Discontinued Operation, Accrued Income Tax Payable
Discontinued Operation, Accrued taxes
Commitments, Contingencies and Obligations
Commitments and Contingencies Disclosure [Text Block]
Common stock, shares authorized (in shares)
Common Stock, Shares Authorized
Option Indexed to Issuer's Equity, Type [Axis]
Basic:
Earnings Per Share, Basic [Abstract]
Product and Service [Axis]
Proceeds from sale of Minera Hecla
Proceeds from sale of Minera Hecla
Proceeds from sale of Minera Hecla
Document Fiscal Period Focus
Total, finance leases
Finance Lease, Liability, to be Paid
Finance lease, liability, to be paid
Other Noncurrent Liabilities [Member]
Other Non-current Liabilities [Member]
Debt instrument, interest rate, stated percentage
Debt Instrument, Interest Rate, Stated Percentage
Stake Acquired Percentage
Stake Acquired Percentage
Stake percentage
Entity Shell Company
Lessee, Operating Lease, Liability, to be Paid, Rolling Year Four
2030
Contractual Obligation
Contractual Obligation, Total
Contractual obligation
AcquisitionCosts
Oil and Gas, Full Cost Method, Capitalized Cost Excluded from Amortization, Acquisition Cost, Period Cost
Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net
Foreign Currency Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net
Cash and cash equivalents
Cash and Cash Equivalent
Cash and Cash Equivalents, at Carrying Value, Total
Asset acquisition, Recognized identifiable assets acquired and liabilities assumed, Deferred tax liabilities
Asset acquisition, Recognized identifiable assets acquired and liabilities assumed, Deferred tax liabilities
Asset acquisition, Recognized identifiable assets acquired and liabilities assumed, Deferred tax liabilities
Subsidiary, Sale of Stock [Line Items]
Silver Two Thousand Twenty Five Settlements For Provisional Sales [Member]
Silver Two Thousand Twenty Five Settlements For Provisional Sales [Member]
Silver 2025 Settlements for Provisional Sales [Member]
Issuance of Common Share
Common Stock, Shares, Issued
Asset Class [Domain]
Statement [Table]
Discontinued Operation of Inventories [Abstract]
Discontinued Operation of Inventories [Abstract]
Inventories:
Asset Acquisition, Amount
Asset Acquisition, Indemnification Asset, Amount
Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Two
2028
Statement [Line Items]
Business Combination [Domain]
Put Option
Put Option [Member]
Entity Filer Category
Common stock issued under ATM program , shares
Common stock issued under ATM program , shares
Common stock issued under ATM program, net shares
Product inventory change
Increase (Decrease) in Inventories and Other Operating Assets
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings
Fair Value, Assets and Liabilities Measured on Recurring Basis, Gain (Loss) Included in Earnings, Total
(Loss) gain on derivative contracts
Reclassification from AOCI to fair value adjustments, net
Other Comprehensive Income (Loss), Financial Liability, Fair Value Option, Reclassification Adjustment from AOCI for Derecognition, after Tax
Total liabilities and stockholders' equity
Liabilities and Equity
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]
Other current assets
Foreign exchange contracts
Foreign Currency Contract, Asset, Fair Value Disclosure
Common stock issued for 401(k) match
Stock issued for 401(k) match
The value of stock issued during period for a 401k match.
IQ Notes [Member]
Represents the IQ notes.
IQ Notes [Member]
Disposal Group, Including Discontinued Operation, Costs of Goods Sold
Discontinued Operation, Cost of sales and other direct production costs
Accounts receivable related to working capital adjustments
Accounts Receivable Related To Working Capital Adjustments
Accounts Receivable Related To Working Capital Adjustments
Zinc 2024 Settlements for Forecasted Sales [Member]
Zinc 2024 Settlements for Forecasted Sales [Member]
Zinc 2024 Settlements for Forecasted Sales
Concentrates
Concentrates [Member]
Concentrates [Member]
Revenue from External Customers by Products and Services [Table Text Block]
Schedule of Sales of Products by Metal
Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]
Schedule of the Quantities of Metals Committed
Derivative [Line Items]
Other non-current liabilities
Disposal Group, Including Discontinued Operation, Other Liabilities, Noncurrent
Restricted Stock August Seven Two Thousand Twenty Three [Member]
Restricted Stock August Seven Two Thousand Twenty Three [Member]
Restricted stock, August 7, 2023 [Member]
Stock-based compensation distributed
Stock Based Compensation Unit Share
Stock Based Compensation Unit Share
Notes Tables
Table Text Block [Abstract]
Adjustments For Pension Plans
Accumulated Defined Benefit Plans Adjustment, Net Transition Attributable to Parent [Member]
Subsequent Event [Line Items]
Other non-cash items, net
Other Noncash Income (Expense)
Other Noncash Income (Expense), Total
Schedule of Foreign Exchange Contracts, Statement of Financial Position
Schedule of Foreign Exchange Contracts, Statement of Financial Position [Table Text Block]
Capital additions
Segment, Expenditure, Addition to Long-Lived Assets
Schedule of Our Major Components of Product Inventories
Schedule of Inventory, Current [Table Text Block]
June Twenty Eight Two Thousand Twenty Two [Member]
June twenty eight two thousand twenty two.
Silver 2024 Settlements for Provisional Sales [Member]
Silver Two Thousand Twenty Four Settlements For Provisional Sales [Member]
Silver Two Thousand Twenty Four Settlements For Provisional Sales [Member]
Measurement Input, Annual Yield [Member]
Represents annual yield for measurement input.
Discontinued Operation, Loss on disposal of Hecla Quebec Inc.
Disposal Group, Including Discontinued Operation, Loss on disposal of Business
Disposal Group, Including Discontinued Operation, Loss on disposal of Business
The 2028 Senior Notes [Member]
Information related to the Senior Notes due in 2028.
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation
Long term debt maturities repayments due
Long Term Debt Maturities Repayments Due
Total, long term Debt
Total, long term Debt
At The Market Equity Distribution Agreement [Member]
At the market equity distribution agreement.
ATM Equity Distribution Agreement [Member]
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Schedule Of Earnings Per Share Basic And Diluted
Transfer to Ramp up and Suspension Costs
Transfer to Ramp up and Suspension Costs
Transfer to ramp-up and suspension costs
Senior Notes
Senior Notes, Total
Redeemption of Senior Notes
Accrual for Environmental Loss Contingencies, Period Increase (Decrease)
Accrual for Environmental Loss Contingencies, Period Increase (Decrease), Total
Accrual for environmental loss contingencies, period increase (decrease)
Agreement [Domain]
Agreement.
Forecasted CAD-denominated Operating Costs to be Hedged, Term (Year)
hl_ForecastedCADDenominatedOperatingCostsToBeHedgedTerm
Period within which forecasted CAD (Canadian dollar) denominated operating costs will be hedged.
Earnings Per Share, Basic
Earnings Per Share, Basic, Total
Basic income per common share after preferred dividends
Basic (loss) earnings per common share
Retirement Benefits [Text Block]
Employee Benefit Plans
Income Statement Locations [Domain]
Income Statement Locations
Disposal Group, Including Discontinued Operation, Finance And Operating Lease Liability Current
Disposal Group, Including Discontinued Operation, Finance And Operating Lease Liability Current
Discontinued Operation, Finance leases
Revolving Credit Facility [Member]
Incentive compensation units shares
Incentive Compensation Units Shares
Incentive compensation units shares
Stock issued to directors
The value of stock issued during period to directors.
Common stock issued to directors
Retirement Plan Type [Domain]
Liabilities, Current
Total current liabilities
Fair Value, Asset (Liability), Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Gain (loss) on derivative contracts
Conversion of Stock, Type of Stock Converted
Conversion of Stock
Accounts receivable
Increase (Decrease) in Accounts Receivable
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract]
Non-cash elements included in net income:
Hedging Designation [Domain]
Stockpiled ore [Member]
Stockpiled ore [Member]
Stockpiled ore
Income Statement Locations [Axis]
Income Statement Locations
Price per ounce
Underlying, Derivative Mass
Underlying, Derivative Mass
Business Combination, Contingent Consideration, Description
Contingent Consideration, Description
Derivative, Forward Exchange Rate
Derivative, Forward Exchange Rate
Notes Payable, Fair Value Disclosure
Notes Payable, Fair Value Disclosure
Payments of Debt Issuance Costs
Debt Issuance Costs
Consolidation Items [Domain]
Surety Bonds
Surety bonds
Represents the amount of surety bonds in place as of a specified date. Such surety bonds may be for the purpose of, but not limited to, financial support for future reclamation and closure costs, self-insurance, and employee benefit plans.
STOCKHOLDERS' EQUITY
Equity, Attributable to Parent [Abstract]
Cash Provided by (Used in) Financing Activity, Continuing Operation
Cash Provided by (Used in) Financing Activity, Continuing Operation, Total
Net cash (used in) provided by financing activities of continuing operations
Entity Small Business
Schedule of Notional Amounts of Outstanding Derivative Positions
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]
Hedging Designation [Axis]
Commodity Contract [Member]
Accumulated deficit
Retained Earnings (Accumulated Deficit)
Retained Earnings (Accumulated Deficit), Total
Preferred Stock
Preferred Stock [Member]
Subsidiary or Equity Method Investee, Sale of Stock, Type [Table]
Foreign
Current Foreign Tax Expense (Benefit)
Other Current Assets [Member]
Other Current Assets [Member]
Lessee, Operating Lease, Liability, to be Paid, Rolling Year Two
2028
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Dividends paid to common and preferred stockholders
Payments of Dividends
Payments of Dividends, Total
Adjustments For Pension Plans [Member]
Adjustments For Pension Plans [Member]
Adjustments For Pension Plans [Member]
Common stock issued for 401(k) match
Represents the amount of common stock issued, in noncash financing activities, for 401(k) match.
Common stock issued for 401(k) match
Common stock contributed to pension plans
The value of common stock contributed to pension plans.
Common stock issued as incentive compensation
Weighted Average Number of Shares Outstanding, Diluted, Adjustment
Weighted Average Number of Shares Outstanding, Diluted, Adjustment, Total
Dilutive units
Amendment Flag
Product and Service [Domain]
Loss Contingencies [Line Items]
Asset acquisition, Step acquisition, Investment held in acquiree prior to acquisition, Percentage
Asset acquisition, Step Acquisition, Investment Held in Acquiree Prior to Acquisition, Percentage
Asset acquisition, step acquisition, Investment held in acquiree prior to acquisition, percentage.
Prior Credit Agreement [Member]
Prior Credit Agreement [Member]
Tax Rate Exceeding
Effective Income Tax Rate Reconciliation, Deduction, Percent
Effective Income Tax Rate Reconciliation, Deduction, Percent, Total
Distribution of Assets, Liabilities and Stockholders' Equity [Table Text Block]
Schedule of Assets and Liability of Discountinued Operation
Inventory Disclosure [Text Block]
Product Inventories
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months
Assets of discontinued operations
Disposal Group, Including Discontinued Operation, Assets, Current
Disposal Group, Including Discontinued Operation, Total assets
Entity Address, Postal Zip Code
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation
Net cash provided by operating activities
Acquired Share
Acquired share
Acquired Share
Common Stock
Common Stock [Member]
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]
Other non current liabilities
Disposal Group, Including Discontinued Operation, Non operating Income Expense
Disposal Group, Including Discontinued Operation, Non operating Income Expense
Discontinued Operation, Total other expense
Disposal Group, Including Discontinued Operation, Non operating Income Expense, Total
Performance based, June 21, 2024 [Member]
Performance Shares June Twenty One Two Thousand Twenty Four [Member]
Performance Shares June Twenty One Two Thousand Twenty Four [Member]
Other Operating Income (Expense), Net
Other operating (income) expense
Other operating expense, net
Discontinued Operation, Other Operating Expenses:
Discontinued Operation, Other Operating Expenses [Abstract]
Discontinued Operation, Other Operating Expenses [Abstract]
Performance Shares One June Twenty Three Two Thousand Twenty Five [Member]
Performance Shares One June Twenty Three Two Thousand Twenty Five [Member]
Performance based, June 23, 2025 [Member]
hl_EpaMaximumForAdministrativePenaltiesPerDayviolation
Represents the maximum penalty that the EPA can pursue for administrative penalties, on a per day, per violation basis. .
EPA maximum for administrative penalties, per day/violation
hl_LongtermDebtObligationsIncludingInterest
Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt including interest. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.
Total
hl_EpaMaximumForAdministrativePenaltiesTotal
Represents the maximum penalty that the EPA can pursue for administrative penalties.
EPA maximum for administrative penalties
Entity Address, Address Line One
Depreciation, depletion and amortization
Cost, Depreciation, Amortization and Depletion
Cost, Depreciation, Amortization and Depletion, Total
Environmental Remediation Past Response Costs [Member]
Environmental Remediation Past Response Costs
Fair Value Hierarchy and NAV [Axis]
Earnings Per Share [Abstract]
Net (loss) income per common share:
Disposal Group, Including Discontinued Operation, Other Operating Expenses
Disposal Group, Including Discontinued Operation, Other Operating Expenses
Discontinued Operation, Total other operating expenses
Supplemental disclosure of cash flow information:
Supplemental Cash Flow Information [Abstract]
Metal forward contracts
Derivative Asset
Derivative Asset, Total
Statement of Financial Position Location, Balance [Axis]
Operating lease right-of-use assets
Operating Lease, Right-of-Use Asset
Less: effect of discounting, finance leases
Finance Lease, Liability, Undiscounted Excess Amount
Less: effect of discounting
Inventory Disclosure [Abstract]
Restricted Stock, March 24, 2025 [Member]
Restricted Stock March Twenty Four Two Thousand Twenty Five [Member]
Restricted Stock March Twenty Four Two Thousand Twenty Five [Member]
Disposal Group, Including Discontinued Operation, Revenue
Discontinued Operation, Sales
hl_EstimatedResponseCosts
Represents the estimated amount of response costs that have been incurred by the EPA in cleaning up a site.
Estimated response costs
Document Type
Gold Two Thousand Twenty Six Settlements For Forecasted Sales [Member]
Gold Two Thousand Twenty Six Settlements For Forecasted Sales [Member]
Gold 2026 Settlements For Forecasted Sales [Member]
Income Taxes Paid, Net
Cash paid for income and mining taxes, net
Income Taxes Paid, Net, Total
Gross Profit
Gross profit
Shares Withheld for Tax Withholding Obligation, Price Per Share (in dollars per share)
hl_SharesWithheldForTaxWithholdingObligationPricePerShare
Per share or per unit amount of shares withheld for tax withholding obligation.
Entity Central Index Key
Line of Credit Facility [Table]
Disposal Group, Including Discontinued Operation, Assets [Abstract]
ASSETS
Restricted Stock July Fifteen Two Thousand Twenty Five [Member]
Restricted Stock July Fifteen Two Thousand Twenty Five [Member]
Restricted stock July 15, 2025 [Member]
Realized Gain (Loss), Foreign Currency Transaction, before Tax
Foreign exchange gain/loss, net
hl_EpaMaximumForStatutoryPenaltiesPerDayviolation
Represents the maximum penalty that the EPA can pursue for statutory penalties, on a per day, per violation basis.
EPA maximum for statutory penalties, per day/violation
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation
Net increase (decrease) in cash, cash equivalents and restricted cash and cash equivalents
Subsequent Event Type [Domain]
Lead Two Thousand Twenty Five Settlements For Provisional Sales [Member]
Lead Two Thousand Twenty Five Settlements For Provisional Sales [Member]
Lead 2025 Settlements for Provisional Sales [Member]
Disposal Group, Including Discontinued Operation, Other Assets, Noncurrent
Discontinued Operation, Other non-current assets
Common stock, par value (in dollars per share)
Common Stock, Par or Stated Value Per Share
Common Shares Value Per Share
Asset acquisition, Consideration transferred, Total non cash consideration
Asset Acquisition Consideration Transferred Total Non Cash Consideration
Asset Acquisition Consideration Transferred Total Non Cash Consideration
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent, Total
Other comprehensive loss
Discontinued Operation, Net (loss) income from discontinued operations
Disposal Group, Including Discontinued Operation, Net Income Loss Available To Common Stockholders Basic
Disposal Group, Including Discontinued Operation, Net Income Loss Available To Common Stockholders Basic
Discontinued Operation, Net (loss) income from discontinued operations
Price Risk Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net
Price Risk Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net
Base Rate [Member]
Noncash or part noncash acquisition, Noncash financial or equity instrument consideration, Shares issued
Noncash or Part Noncash Acquisition, Noncash Financial or Equity Instrument Consideration, Shares Issued
Finance Lease, Liability, to be Paid, Rolling Year Two
2028
Performance Shares June Twenty One Two Thousand Twenty Three [Member]
Performance Shares June Twenty One Two Thousand Twenty Three [Member]
Performance based, June 21, 2023 [Member]
Realized losses
Realized Investment Gains (Losses)
Realized Investment Gains (Losses), Total
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Table]
Accrued taxes
Increase (Decrease) in Property and Other Taxes Payable
Canada Revenue Agency [Member]
Canada Revenue Agency [Member]
Stock issued for incentive compensation
Stock Issued For Incentive Compensation
Stock Issued for Incentive Compensation
Derivative [Table]
Increase accumulated comprehensive loss
Increase Decrease Accumulated Other Comprehensive Loss
Increase (decrease) accumulated other comprehensive loss.
Contingent Consideration Payment Fair Value
Contingent Consideration Payment Fair Value
Contingent Consideration Payment Fair Value
Finance Leases:
Finance Lease, Liability, to be Paid, Rolling Maturity [Abstract]
Marketable Securities
Marketable Securities, Total
Schedule of Price Protection on Forecasted Silver Production
Schedule of Price Protection on Forecasted Silver Production [Table Text Block]
Schedule of Price Protection on Forecasted Silver Production [Table Text Block]
Derivative, Notional Amount
Derivative, Notional Amount
Payments for Legal Settlements
Payments for legal settlements
Lead 2023 Settlements for Provisional Sales [Member]
LeadTwoThousandTwentyThreeSettlementsForProvisionalSales[Member]
LeadTwoThousandTwentyThreeSettlementsForProvisionalSales[Member]
Current Fiscal Year End Date
Stock Issued For Incentive Compensation Unit
Stock Issued for Incentive Compensation Unit
Stock issued for incentive compensation
Restricted Cash and Cash Equivalent, Noncurrent
Restricted Cash and Cash Equivalents, Noncurrent, Total
Restricted cash and cash equivalents
Non-current restricted cash and cash equivalents
Lucky Friday [Member]
Reporting segment classified as Lucky Friday.
Document Quarterly Report
Other Cost and Expense, Operating
Other direct production costs
Entity Address, State or Province
Asset Acquisition [Domain]
Series B preferred stock, shares outstanding (in shares)
Preferred Stock, Shares Outstanding
Preferred Stock, Shares Outstanding, Beginning Balance
Preferred Stock, Shares Outstanding, Ending Balance
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Comprehensive income
Sale of Hecla Quebec Inc. and Discontinued Operations
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]
Inventory [Axis]
Share-Based Compensation Arrangement by Share-Based Payment Award Date
Share-Based Compensation Arrangement by Share-Based Payment Award Date
Grant date
Conversion of Stock, Shares Converted
Warrants converted
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (in shares)
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation
Internal Credit Assessment [Axis]
Royalty payments
Payments for Royalties
Deferred income taxes
Increase (Decrease) in Deferred Income Taxes
Stock Issued for Deferred Compensation
Stock Issued for Deferred Compensation
Stock issued for deferred compensation
Income (Loss) from Continuing Operations, Per Basic Share
Continuing operations
Income from continuing operations
Common stock issued to Alexco Resource Corp Shares
Common stock issued to Alexco Resource Corp Shares
Common stock issued to Alexco Resource Corp. shareholders (17,992,875 shares), Shares
Subsequent Event [Member]
Subsequent Event
Series B Cumulative Preferred Stock [Member]
Represents Series B cumulative preferred stock securities registered pursuant to Section 12(b).
Other non-current assets
Other Assets, Noncurrent
Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net
Total debt
Unamortized discount and issuance costs
Subsidiary or Equity Method Investee [Line Items]
Lead 2024 Settlements for Provisional Sales [Member]
Lead Two Thousand Twenty Four Settlements For Provisional Sales Member
Lead Two Thousand Twenty Four Settlements For Provisional Sales Member
Other Comprehensive Net (loss) Income from discontinued Operations
Other Comprehensive Net (loss) Income from discontinued Operations
Comprehensive loss from discontinued operations
Net loss from discontinued operations
Interest Expense, Debt
Interest Expense, Debt, Total
Interest expense debt
Purchase Commitment, Excluding Long-Term Commitment [Axis]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract]
Other Commitments [Domain]
Fourth Quarter 2025
Fourth Quarter Two Thousand Twenty Five Settlements Period [Member]
Fourth Quarter Two Thousand Twenty Five Settlements Period [Member]
Derivative, Loss, Statement of Income or Comprehensive Income [Extensible Enumeration]
Accumulated Other Comprehensive Income (Loss), net
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss), Net
Derivative Liability
Derivative Liability, Total
Metal forward contracts
Zinc 2025 Settlements for Forecasted Sales [Member]
Zinc2025 Settlements For Forecasted Sales Member
Zinc 2025 Settlements For Forecasted Sales [Member]
Treasury Stock, Common, Shares
Treasury stock cmmon Share
Derivative Liability, Subject to Master Netting Arrangement, before Offset of Collateral, Total
Derivative Liability, Subject to Master Netting Arrangement, before Offset of Collateral
Derivative Liability, Subject to Master Netting Arrangement, before Offset of Collateral, Total
Lessee, Operating Lease, Liability, to be Paid, Rolling Year Five
2031
Disposal Group, Including Discontinued Operation, Assets, Noncurrent
Disposal Group, Including Discontinued Operation, Assets, Noncurrent, Total
Assets of discontinued operations
Gold [Member]
Gold
Preferred Stock, Value, Issued
Series B preferred stock, $0.25 par value, 157,756 shares issued and outstanding, liquidation preference - $7,889
Restricted Stock August Twenty Two Thousand Twenty Four [Member]
Restricted Stock August Twenty Two Thousand Twenty Four [Member]
Restricted stock, March 24, 2025 [Member]
Disposal Groups, Including Discontinued Operations [Table Text Block]
Schedule of Discontinued Operations and Comprehensive Loss.
Disposal Group, Including Discontinued Operation, Exploration and Pre-Development
Disposal Group, Including Discontinued Operation, Exploration and Pre-Development
Discontinued Operation, Exploration and pre-development
Greens Creek [Member]
Reporting segment classified as Greens Creek.
Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Four
2030
Asset Acquisition, Consideration Transferred, Contingent Consideration
Contingent Consideration
Derivative, Loss on Derivative
Derivative, Loss on Derivative
Minimum [Member]
Minimum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Grant date fair value per share
Financial Instrument [Axis]
Current assets:
Assets, Current [Abstract]
hl_PaymentOfResponseCosts
Represents the amount of response costs paid during the period.
Payment of response costs
Maximum Allocation of Forecasted CAD-demonimated Operating Costs
hl_MaximumAllocationOfForecastedCADDemonimatedOperatingCosts
Represents the maximum percentage of CAD (Canadian dollar) denominated operating costs to be hedged in the future.
Disposal Group, Including Discontinued Operation, Property, Plant and Equipment
Discontinued Operation, Property, plants, equipment and mine development, net
Fair Value, Inputs, Level 3 [Member]
Proceeds From Sale Of Hecla Quebec, Net Of Transaction Costs
Proceeds From Sale Of Hecla Quebec, Net Of Transaction Costs
Proceeds from sale of Hecla Quebec, net of transaction costs
General Fair Value Hedge Information, Minimum R Square, Percentage
Derivative instruments, hedging exposure
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Preferred stock dividends declared, per share (in dollars per share)
Preferred Stock, Dividends Per Share, Declared
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Changes in fair value of derivative contracts designated as hedge transactions
Current liabilities:
Liabilities, Current [Abstract]
September Two Thousand Twenty Two through December Thirty One Two Thousand Twenty Four [Member]
September Two Thousand Twenty Two through December Thirty One Two Thousand Twenty Four [Member]
Stock issued to directors, shares (in shares)
Stock issued to directors, shares (in shares)
The number of shares of stock issued during period to directors.
Casa Berardi and Keno Hill [Member]
Casa Berardi & Keno Hill [Member]
Casa Berardi & Keno Hill [Member]
Environmental Remediation Services [Member]
Environmental Remediation Services [Member]
EnvironmentalRemediationServices [Member]
Trade
Accounts Receivable, after Allowance for Credit Loss, Current
Accounts Receivable, after Allowance for Credit Loss, Current, Total
Cash to be received
Common stock issued to settle the acquired silver stream, Shares
Common stock issued to settle the acquired silver stream, Shares
Common stock issued to settle the acquired silver stream (34,800,990 shares), Shares
Acquisition Cost Ratio
Share exchange ratio
Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities, Current
Disposal Group, Including Discontinued Operation, Accounts Payable and Accrued Liabilities, Current, Total
Discontinued Operation, Accounts payable and accrued liabilities
Disposal Group, Including Discontinued Operation, Liabilities [Abstract]
LIABILITIES
Commitments and Contingencies
Commitments and contingencies (Notes 5, 8, 9, and 12)
Assessed sales tax
Assessed Sales Tax
Assessed Sales Tax
Defined Benefit Plan, Service Cost
Service cost
Other Adjustments to Income, Discontinued Operations
Other Adjustments To Income Discontinued Operations
Operating lease liability
Total
Operating Lease, Liability
Long Term Debt Maturities Repayments Effect of Discounting
Long Term Debt Maturities Repayments Effect of Discounting
Less: effect of discounting
Debt instrument, basis spread on variable rate
Debt Instrument, Basis Spread on Variable Rate
Property Plant And Mine Development
Property Plant And Mine Development (Member)
Property Plant And Mine Development (Member)
Third Quarter Two Thousand Twenty Five Settlements Period [Member]
Third Quarter Two Thousand Twenty Five Settlements Period [Member]
Third Quarter 2025
Leverage Ratio Applicable Margin [Member]
Leverage Ratio Applicable Margin [Member]
New Credit Agreement [Member]
New Credit Agreement [Member]
Current Derivative Liabilities [Member]
Represents current derivative liabilities.
Forcasted Exchange Rate
Forcasted Exchange Rate
Exchange Rate
Disposal Group, Including Discontinued Operation, Prepaid and Other Assets
Discontinued Operation, Prepaid expenses
Nevada Operations [Member]
Represents information about Nevada Operations.
Performance Shares August SevenTwo Thousand Twenty Three [Member]
Performance based, August 7, 2023 [Member]
Performance Shares August SevenTwo Thousand Twenty Three [Member]
Line of Credit Facility [Abstract]
Restricted Stock January Fifteen Two Thousand Twenty Five [Member]
Restricted Stock January Fifteen Two Thousand Twenty Five [Member]
Restricted stock, January 15, 2025 [Member]
Gold Two Thousand Twenty Four Settlements For Provisional Sales Member
Gold Two Thousand Twenty Four Settlements For Provisional Sales [Member]
Gold 2024 Settlements For Provisional Sales [Member]
Effect of exchange rates on cash
Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Including Disposal Group and Discontinued Operations, Total
Common Stock Issued for Warrant Conversion Value
Common Stock Issued for Warrant Conversion Value
Common stock issued for warrant conversion
Liabilities of discontinued operations
Disposal Group, Including Discontinued Operation, Liabilities, Current
Liabilities of discontinued operations
Disposal Group, Including Discontinued Operation, Operating Expense
Discontinued Operation, Other operating expense, net
Money market funds and other bank deposits
Deposits, Money Market Deposits
Long-Term Debt, Type [Domain]
Carpenter Snow Creek Superfund Site, Cascade County, Montana [Member]
Responsibility under CERCLA for environmental remediation and past costs the EPA has incurred related to the Carpenter Snow Creek Superfund Site, Cascade County, Montana.
Reconciliation of Sales [Member]
Reconciliation of Sales [Member]
ReconciliationOfSales [Member]
Loss Contingencies [Table]
Weighted Average Number of Shares Outstanding, Basic
Weighted Average Number of Shares Outstanding, Basic, Total
Weighted average number of common shares outstanding - basic
Basic weighted average common shares
Document Information [Line Items]
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent
Net income (loss) from continuing operations
Net income from continuing operations
Net income from continuing operations
Segments [Axis]
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax
Recognized loss
Deferred Cash Consideration
Deferred Cash Consideration
Subsequent Events
Subsequent Events [Text Block]
Transaction costs
Asset Acquisition, Consideration Transferred, Transaction Cost
Long-Term Debt
Long-term debt
Cash
Cash
Discontinued Operation, Deferred tax liabilities
Disposal Group, Including Discontinued Operation, Deferred Tax Liabilities
Stock-based compensation expense
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition
APIC, Share-Based Payment Arrangement, Increase for Cost Recognition, Total
Cost of sales and other direct production costs
Cost of sales and other direct production costs
The costs related to goods produced and sold during the reporting period, before depreciation, depletion, and amortization.
Variable Rate [Domain]
Balance Beginning
Balance Ending
Total stockholders' equity
Equity, Attributable to Parent
Lead 2024 Settlements for Forecasted Sales [Member]
Lead 2024 Settlements for Forecasted Sales [Member]
Lead 2024 Settlements for Forecasted Sales
Payments to Acquire Investments
Payments to Acquire Investments, Total
Purchases of investments
Series B preferred stock, par value (in dollars per share)
Preferred Stock, Par or Stated Value Per Share
Silver Contracts [Member]
Represents information related to silver contracts.
Silver [Member]
Foreign exchange contracts
Foreign Currency Contracts, Liability, Fair Value Disclosure
Statement of Stockholders' Equity [Abstract]
Lease Commitments [Member]
Information on lease commitments.
Forward and Put Option Contracts [Member]
Represents the forward and put option contracts.
Sales and Input Tax Credits [Member]
Sales and Input Tax Credits [Member]
Sales and Input Tax Credits [Member]
Acquired Unit
Acquired Unit
Acquired unit
The maximum number of shares to be sold under the equity distribution agreement.
hl_EquityDistributionAgreementMaximumNumberOfSharesToBeSold
Equity Distribution Agreement, Maximum Number of Shares to be Sold (in shares)
Internal Credit Assessment [Domain]
Treasury Stock
Treasury Stock, Common [Member]
Discontinued Operation of Other Expenses
Discontinued Operation of Other Expenses
Discontinued Operation of Other Expenses
Gain (Loss), Foreign Currency Transaction, before Tax
Foreign Currency Transaction Gain (Loss), before Tax, Total
Net foreign exchange loss (gain)
Zinc and Lead Contract 2023 [Member]
Zinc and Lead Contract Two Thousand Twenty Three [Member]
Zinc and Lead Contract Two Thousand Twenty Three [Member]
Fair Value Measurement
Fair Value Disclosures [Text Block]
Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award
Disclosure of Share-Based Compensation Arrangements by Share-Based Payment Award [Table Text Block]
Debt Instrument, Name [Domain]
Other current assets
Other Assets, Current
Consideration Closing Date
Consideration Closing Date
Consideration closing date
Restricted Stock June Twenty One Two Thousand Twenty Three [Member]
Restricted Stock June Twenty One Two Thousand Twenty Three [Member]
Restricted stock, June 21, 2023 [Member]
Environmental Expense and Liabilities, Total
Environmental Expense and Liabilities
Provision for reclamation and closure costs
Inventory, Current [Table]
Disposal Group, Including Discontinued Operation, Liabilities, Current [Abstract]
Current liabilities:
Intersegment Sales [Member]
Intersegment Sales [Member]
IntersegmentSales [Member]
Segment Reporting, Other Segment Item, Amount
Other operating expenses
Net cash used in financing activities of discontinued operations
Cash Provided by (Used in) Financing Activity, Discontinued Operation
Lessee, Operating Lease, Liability, to be Paid, Next Rolling 12 Months
2027
Other current and non-current assets
Increase (Decrease) in Other Operating Assets
Increase (Decrease) in Other Operating Assets, Total
Interest expense
Interest Expense, Operating and Nonoperating
Interest Expense, Total
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Entity [Domain]
Credit Facility [Axis]
Total cost of sales
Cost of Product and Service Sold
Accrued payroll and related benefits
Increase (Decrease) in Accrued Salaries
Related to the segment operating in Quebec.
Hecla Quebec. Inc [Member]
Hecla Quebec Inc. [Member]
Debt Instrument, Repaid, Principal
Debt instrument total payment
Warrants Outstanding
Class of Warrant or Right, Outstanding
September Thirty Two Thousand Twenty Two [Member]
September thirty two thousand twenty two.
Other Noncurrent Assets [Member]
Other Non-current Assets [Member]
Treasury Stock, Value
Treasury Stock, Value, Total
Less treasury stock, at cost; June 30, 2025 - 8,768,372 and December 31, 2024 - 8,813,127 shares issued and held in treasury
Less treasury stock, at cost; March 31, 2026 - 8,967,482 and December 31, 2025 - 8,920,348 shares issued and held in treasury
Environmental Remediation Contingency [Axis]
Pension Plan [Member]
Foreign Exchange Contract [Member]
Entity Address, City or Town
Finance Lease, Liability, to be Paid, after Rolling Year Five
Thereafter
Other Commitments [Axis]
Number of Reportable Segments
Number of Reportable Segments
Stock Issued During Period Shares Compensation To Interim CEO
Stock Issued During Period Shares Compensation To Interim CEO
Stock Issued During Period Shares Compensation To Interim CEO
Zinc [Member]
Zinc is a chemical element with the periodic table symbol Zn and atomic number 30.
Security Exchange Name
Credit Facility [Domain]
Long-Term Debt, Gross
Principal
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest
Income before income and mining taxes
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Abstract]
Measurement Input Type [Domain]
hl_EstimatedFutureResponseCost
Represents the estimated future response cost that the EPA may ultimately incur related to a site.
Estimated future response cost
Stockholders' Equity Note [Abstract]
Accrued reclamation and closure costs
Mine Reclamation and Closing Liability, Noncurrent
Price Risk Cash Flow Hedge Unrealized Gain (Loss) to be Reclassified During Next 12 Months
Price Risk Cash Flow Hedge Unrealized Gain (Loss) to be Reclassified During Next 12 Months
Fair value adjustments, net
Nonoperating Gains (Losses)
Nonoperating Gains (Losses), Total
Changes in fair value of derivative contracts designated as hedge transactions [Member]
Changes in fair value of derivative contracts designated as hedge transactions [Member]
Changes in fair value of derivative contracts designated as hedge transactions [Member]
Inventory, Net, Total
Inventory, Net
Product inventories
Cash paid for interest
Interest Paid, Excluding Capitalized Interest, Operating Activity
Statistical Measurement [Domain]
Closure plan cost
Accrued Capping, Closure, Post-closure and Environmental Costs
Exercise price
Class of Warrant or Right, Exercise Price of Warrants or Rights
Total current assets
Assets, Current
Share-Based Payment Arrangement, Expense
Share-Based Payment Arrangement, Expense
Asset acquisition, Recognized identifiable assets acquired and liabilities assumed, Mineral interests
Asset acquisition, Recognized identifiable assets acquired and liabilities assumed, Mineral interests
Asset acquisition, Recognized identifiable assets acquired and liabilities assumed, Mineral interests
Document Period End Date
Lead Two Thousand Twenty Seven Settlements For Forecasted Sales [Member]
Lead Two Thousand Twenty Seven Settlements For Forecasted Sales [Member]
Lead 2027 Settlements For Forecasted Sales [Member]
Fair Value Hierarchy and NAV [Domain]
Business Combination, Contingent Consideration, Asset
Business Combination, Contingent Consideration, Asset, Total
Contingent Cash Consideration
Line of credit facility, commitment fee percentage
Line of Credit Facility, Commitment Fee Percentage
Adjustments to Additional Paid in Capital, Fair Value
Statement of Financial Position [Abstract]
Accounts receivable:
Receivables, Net, Current [Abstract]
Keno Hill [Member]
Keno Hill
Keno Hill
Environmental Remediation Site [Axis]
Fair Value, Option, Ineligible Items, Carrying Amount
Credit agreement carrying and fair value
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation [Abstract]
Reconciliation of cash and cash equivalents and restricted cash and cash equivalents above
Class of Stock [Axis]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Receivables from provisional concentrate sales
Other, net
Other Receivables
Current Income Tax Expense (Benefit)
Current Income Tax Expense (Benefit), Total
Total current income and mining tax provision
Not Designated as Hedging Instrument [Member]
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent
Minimum Effective Tax Rate
Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table]
Total liabilities
Liabilities
Financial Instruments [Domain]
Reclassification from AOCI, Current Period, before Tax, Attributable to Parent
Reclassification from AOCI to sales
Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents
Disposal Group, Including Discontinued Operation, Cash
Discontinued Operation, Cash and cash equivalents
Common stock and Series B Preferred Stock dividends declared
Dividends, Total
Dividends
Common stock ($0.00625 per share) and Series B Preferred Stock ($0.875 per share) dividends declared
Derivative Liability, Statement of Financial Position [Extensible Enumeration]
Metal forward contracts
Expected return on plan assets
Defined Benefit Plan, Expected Return (Loss) on Plan Assets
Disposal Groups, Including Discontinued Operations [Table]
Foreign Exchange Forward [Member]
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Variable Rate [Axis]
Weighted Average Number of Shares Outstanding, Diluted
Weighted Average Number of Shares Outstanding, Diluted, Total
Weighted average number of common shares outstanding - diluted
Diluted weighted average common shares
Entity File Number
Securities Act File Number
Other Assets
Total assets of reportable segments
Cover [Abstract]
Deferred Federal, State and Local, Tax Expense (Benefit) [Abstract]
Deferred:
Common shares and royalty asset received for sale of Hecla Quebec
Common Shares And Royalty Asset Received For Sale Of Hecla Quebec
Common Shares And Royalty Asset Received For Sale Of Hecla Quebec
Measurement Input Type [Axis]
Accounts payable, accrued and other current liabilities
Increase (Decrease) in Accounts Payable and Accrued Liabilities
Increase (Decrease) in Accounts Payable and Accrued Liabilities, Total
Accrued taxes
Taxes Payable, Current
Taxes Payable, Current, Total
Fair value adjustments, net
hl_FairValueAdjustmentsNet
Amount of noncash adjustments to fair values.
Fair value adjustments, net
Environmental Remediation Contingency [Domain]
Income Tax [Table]
Income Tax [Table]
Derivative, Gain (Loss) on Derivative, Net, Total
Derivative, Gain (Loss) on Derivative, Net
Derivative, Gain (Loss) on Derivative, Net, Total
Derivative, Net Liability Position, Aggregate Fair Value
Derivative net liability position fair value
Lessee, Operating Lease, Liability, to be Paid, after Rolling Year Five
Thereafter
Line Of Credit Facility Principal Payment Including Interest
Line Of Credit Facility Principal Payment Including Interest
Line of credit facility total payment including interest
Other Comprehensive Income (Loss) [Member]
Sale of Stock [Domain]
Segment Reporting Disclosure [Text Block]
Business Segments and Sales of Products
Total Metal [Member]
Total Metal [Member]
Total metal sales [Member]
General and administrative
General and Administrative Expense
General and Administrative Expense, Total
Zinc Two Thousand Twenty Six Settlements For Provisional Sales [Member]
Zinc Two Thousand Twenty Six Settlements For Provisional Sales [Member]
Zinc 2026 Settlements for Provisional Sales [Member]
Represents the information pertaining to Klondex Mines Ltd.
Klondex Mines Ltd
Klondex Mines Ltd [Member]
Sales
Revenue from Contract with Customer, Including Assessed Tax
Total sales
Finance and operating leases
Finance and operating leases
Present value of lessee's discounted obligation for lease payments from finance and operating leases, classified as current.
Finance leases
Notice Of Assessment [Member]
Notice Of Assessment [Member]
Notice Of Assessment [Member]
Subsequent Event [Table]
Net asset (liability)
Derivative Assets (Liabilities), at Fair Value, Net
Derivative Assets (Liabilities), at Fair Value, Net, Total
Finance Lease, Liability, to be Paid, Rolling Year Four
2030
Current Federal, State and Local, Tax Expense (Benefit) [Abstract]
Current:
Long-Term Debt, Maturities, Repayments of Principal in Rolling after Year Five
Thereafter
Gain (Loss) on Extinguishment of Debt
Gain (Loss) on Extinguishment of Debt, Total
Loss on Extinguishment
Performance Obligation Commitments [Member]
Commitments relating to performance obligations.
Cash Provided by (Used in) Investing Activity, Discontinued Operation
Net cash used in investing activities of discontinued operations
Purchase Orders and Commitment [Member]
Information on purchase orders and commitments.
Noncurrent Derivatives Assets [Member]
Noncurrent Derivative Assets [Member]
Represents noncurrent derivative assets.
Disposal Group, Including Discontinued Operation, Consideration
Amount of consideration receivable
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location
Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]
Proceeds from Issuance of Long-Term Debt, Total
Proceeds from Issuance of Long-Term Debt
Borrowing of debt
Stock Issued for Deferred Compensation, Unit
Stock Issued for Deferred Compensation, Unit
Basis of Preparation of Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block]
Long-Term Investments
Long-Term Investments, Total
Non-current investments
Fair Value, Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]
Unrealized gain on equity securities investments
Agreement [Axis]
Agreement.
Depreciation, depletion and amortization
Depreciation, Depletion and Amortization
Depreciation, Depletion and Amortization, Total
Dividends [Domain]
Amortization of prior service cost
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)
Document Transition Report
Short-Term Investments
Short-Term Investments, Total
Current investments
Operating Expenses
Total other operating expenses
Derivative Instrument Detail [Abstract]
Mineral Interests [Member]
Mineral interests [member
Acquisition of treasury stock
Payments for Repurchase of Common Stock
Stock Issued During Period Shares, Restricted stock units and performance stock units distributed
Stock Issued During Period Shares, Restricted stock units and performance stock units distributed
Restricted stock units and performance stock units distributed (1,789,042 shares) ,Shares
Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component
Net Periodic Defined Benefits Expense (Reversal of Expense), Excluding Service Cost Component
Common stock, shares issued (in shares)
Common stock, shares issued (in shares)
Total number of common shares of an entity that have been sold or granted to shareholders (excluding those common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.
Writedown Of Plant And Equipment
Writedown of property, plant and equipment
Write down of property, plant and equipment
Writedown of plant and equipment.
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
Schedule Of Components Of Income Tax Expense Benefit
Unrealized Gain (Loss) on Derivatives
Unrealized Gain (Loss) on Derivatives
Statement of Cash Flows [Abstract]
Disposal Group, Including Discontinued Operation,Foreign Currency Transaction Gain Loss Realized
Disposal Group, Including Discontinued Operation,Foreign Currency Transaction Gain Loss Realized
Discontinued Operation, Net foreign exchange loss
Domestic
Current Federal Tax Expense (Benefit)
Series B preferred stock, liquidation preference
Preferred Stock, Liquidation Preference, Value
Derivative, Fair Value, Obligations Under the Agreements
hl_DerivativeFairValueObligationsUnderTheAgreements
The amount of required settlement obligation under the agreements at termination.
Metal forward contracts
Derivative Asset, Statement of Financial Position [Extensible Enumeration]
Equity [Text Block]
Stockholders' Equity
At the market Offering [Member]
At the market Offering.
Earnings Per Share [Text Block]
Income (Loss) Per Common Share
Casa Berardi and Keno Hill [Member]
Casa Berardi and Keno Hill [Member]
Discontinued Operations and Disposal Groups [Abstract]
Net income (loss)
Net income (loss)
Net income
Write-down of inventory
Inventory Write-down
Inventory adjustments
Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Five
2031
Inventories
Increase (Decrease) in Inventories
Increase (Decrease) in Inventories, Total
Inventory [Line Items]
MetalSales [Member]
Metal Sales [Member]
Metal Sales [Member]
Net (loss) income from discontinued operations, net of taxes
Net (loss) income from discontinued operations, net of taxes
Cash Provided by (Used in) Operating Activity, Continuing Operation
Cash Provided by (Used in) Operating Activity, Continuing Operation, Total
Cash provided by operating activities of continuing operations
Line of Credit Facility [Line Items]
Derivative, Number of Instruments Held, Total
Derivative, Number of Instruments Held
Derivative, Number of Instruments Held, Total
Stock Based Compensation Distributed
Stock Based Compensation Distributed
Stock-based compensation distributed
Derivatives, Fair Value [Line Items]
Income Tax Authority, Name [Axis]
Cash provided by operating activities of discontinued operations
Cash Provided by (Used in) Operating Activity, Discontinued Operation
Cash provided by operating activities of discontinued operations
Orezone Gold Corporation
Orezone Gold Corporation [Member]
Orezone Gold Corporation [Member]
Repayments of Debt
Repayment of debt
Repayment of debt
Redemption of Debt
Redemption of Debt
Redemption of debt
Document Fiscal Year Focus
Debt Instrument, Measurement Input
Debt Instrument, Measurement Input
Schedule of Accumulated other comprehensive income (loss)
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Table Text Block]
First Quarter 2026
First Quarter Two Thousand Twenty Six Settlements Period [Member]
First Quarter Two Thousand Twenty Six Settlements Period [Member]
Other Comprehensive Income (Loss), before Reclassifications, Provision for income taxes
Other comprehensive income (Loss), before reclassifications, provision for income taxes
Provision for income taxes
Investing activities:
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract]
Disposal Group, Income of discontinued operations
Disposal Group, Income of discontinued operations
Disposal Group, Income of discontinued operations
Discontinued Operation, Income of discontinued operations
Interest Expense, Nonoperating, Total
Interest Expense, Nonoperating
Interest expense
Revenue Recognition, Sales Returns, Reserve for Sales Returns
Sales revenue
Other Operating Segment [Member]
Other [Member]
Schedule of Net Benefit Costs [Table Text Block]
Schedule of Net Periodic Pension Cost
Less: Smelter and refining charges
hl_SmelterAndRefiningCharges
The costs of extracting metal from ore.
Proceeds from Sale of Productive Assets
Proceeds from Sale of Productive Assets, Total
Proceeds from asset dispositions
Domestic
Deferred Federal Income Tax Expense (Benefit)
Forcasted Cash Operating Expenditures
Forcasted Cash Operating Expenditures
Cash Operating Expenditure
Total fair value adjustments, net
Total fair value adjustments, net
Total amount of realized gain (loss) and unrealized gain (loss) recognized in income from asset (liability) measured at fair value on recurring basis using unobservable input (level 3) and still held.
Subsidiary or Equity Method Investee, Sale of Stock [Table]
Operating Leases:
Lessee, Operating Lease, Liability, to be Paid, Rolling Maturity [Abstract]
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax
AOCI, Cash Flow Hedge, Cumulative Gain (Loss), after Tax
Revision of Prior Period [Domain]
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share
Discontinued operations
(Loss) from discontinued operations
Commitments and Contingencies Disclosure [Abstract]
Derivative [Member]
Zinc Contract 2022 [Member]
Zinc Contract 2022 [Member]
Zinc Contract 2022 [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Disposal Group, Including Discontinued Operation, Interest Expense
Discontinued Operation, Interest expense
Discontinued Operation, Interest expense
Net Income (Loss) Available to Common Stockholders, Basic
Net income applicable to common stockholders
Net (loss) income applicable to common stockholders
Discontinued Operation, Total liabilities
Disposal Group, Including Discontinued Operation, Liabilities
Exploration and pre-development
Exploration and pre-development
Represents the amount of exploration and pre-development costs recorded during the period related to mining activities.
Noncash or part noncash acquisition, Interest acquired
Noncash or Part Noncash Acquisition, Interest Acquired
Price Risk Derivative [Member]
Debt Instrument [Axis]
Derivative Instrument [Axis]
Asset acquisition, Consideration transferred, Equity interest issued and issuable
Asset Acquisition, Consideration Transferred, Equity Interest Issued and Issuable
Fair Value of Assets Acquired
Consideration of Fair Value
Defined Benefit Plan, Interest Cost
Interest cost
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total
Disposal Group, Including Discontinued Operation, Non operating Gains Losses
Disposal Group, Including Discontinued Operation, Non operating Gains Losses
Discontinued Operation, Fair value adjustments, net
Assets Needed for Immediate Settlement, Aggregate Fair Value
Assets Needed for Immediate Settlement, Aggregate Fair Value
Finance Lease, Liability, to be Paid, Next Rolling 12 Months
2027
Proceeds from Business Interruption Insurance Policy
Proceeds from Business Interruption Insurance Policy
Business interruption insurance proceeds received
Total assets
Assets, Fair Value Disclosure
Assets, Fair Value Disclosure, Total
Sale of Stock [Axis]
Common stock issued under ATM Program
Common stock issued under ATM program
Common stock issued under ATM program
Debt Instrument Partially Redeemed Amount
Debt Instrument Partially Redeemed Amount
Partially redeemed amount
2025 Settlements For Provisional Sales [Member]
Two Thousand Twenty Five Settlements For Provisional Sales [Member]
Two Thousand Twenty Five Settlements For Provisional Sales [Member]
Revenues
Revenues
Revenues, Total
Cash Provided by (Used in) Investing Activity, Including Discontinued Operation
Net cash provided by (used in) investing activities
Title of 12(b) Security
Fed Funds Effective Rate Overnight Index Swap Rate [Member]
Derivative Instruments
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Income and Mining Taxes
Income Tax Disclosure [Text Block]
Asset Acquisition, Price of Acquisition, Expected
Asset Acquisition, Price of Acquisition, Expected
Cash Provided by (Used in) Investing Activity, Continuing Operation
Cash Provided by (Used in) Investing Activity, Continuing Operation, Total
Net cash provided by (used in) investing activities of continuing operations
Other [Member]
Other [Member]
Other [Member]
Document Information [Table]
Other non-current liabilities
Other Liabilities, Noncurrent
Provision for closed operations and environmental matters
Environmental Remediation Expense, before Recovery
Environmental remediation expense
Legal Entity [Axis]
Reconciliation of Revenue from Segments to Consolidated [Table]
Change in assets and liabilities:
Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract]
Letters of Credit Outstanding, Amount
Letters of Credit Outstanding, Amount
Letters of credit outstanding, amount
Fair Value, Recurring and Nonrecurring [Table]
Capital Surplus
Additional Paid-in Capital [Member]
Measurement Frequency [Domain]
Statement of Income Location, Balance [Axis]
Senior Notes [Member]
Senior Notes
Gold 2023 Settlements for Provisional Sales [Member]
Gold TwoThousandTwentyThreeSettlementsForProvisionalSales [Member]
Gold TwoThousandTwentyThreeSettlementsForProvisionalSales [Member]
Copper [Member]
Copper [Member]
Copper [Member]
Trading Symbol
Disposal Group, Including Discontinued Operation, Employee Related Liabilities Current
Disposal Group, Including Discontinued Operation, Employee Related Liabilities Current
Discontinued Operation, Accrued payroll and related benefits
Subsequent Event Type [Axis]
Certificates of deposit and other deposits
Certificates of Deposit, at Carrying Value
Accrued payroll and related benefits
Employee-related Liabilities, Current
Employee-related Liabilities, Current, Total
Financing activities:
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract]
Fair Value, Recurring [Member]
Total, operating leases
Lessee, Operating Lease, Liability, to be Paid
Lessee, operating lease, liability, to be paid
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Less: effect of discounting, operating leases
Less: effect of discounting
Equity Components [Axis]
Other non-current assets
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration]
Zinc Two Thousand Twenty Seven Settlements For Forecasted Sales [Member]
Zinc Two Thousand Twenty Seven Settlements For Forecasted Sales [Member]
Zinc 2027 Settlements For Forecasted Sales [Member]
Disposal of Minera Hecla
Disposal of Subsidiary
Disposal of Subsidiary
Nonoperating Income (Expense)
Total other expense
Equity Component [Domain]
Stock Issued During Period Value Compensation To Interim CEO
Stock Issued During Period Value Compensation To Interim CEO
Common stock issued as compensation to interim CEO
Asset Class [Axis]
Derivative, Nonmonetary Notional Amount, Mass
Derivative instrument gold put option purchased
Derivative, Nonmonetary Notional Amount, Mass
Two Thousand Twenty Five Settlements For Forecasted Sales [Member]
Two Thousand Twenty Five Settlements For Forecasted Sales [Member]
2025 Settlements For forecasted Sales [Member]
Other Comprehensive Income (Loss) From Continuing Operations
Other Comprehensive Income (Loss) From Continuing Operations
Comprehensive income from continuing operations
Net income from continuing operations
Other Comprehensive Income (Loss) From Continuing Operations, Total
Disposal Group, Including Discontinued Operation, Income and mining tax provision
Disposal Group, Including Discontinued Operation, Income and mining tax provision
Discontinued Operation, Income and mining tax provision
Restricted Stock June Twenty Three Two Thousand Twenty Five [Member]
Restricted Stock June Twenty Three Two Thousand Twenty Five [Member]
Restricted Stock, June 23, 2025 [Member]
Lead [Member]
Lead is a chemical element with atomic number 82 and periodic table symbol Pb (after the Latin, plumbum).
Other Comprehensive Income Location [Domain]
Silver Two Thousand Twenty Six Settlements For Provisional Sales[Member]
Silver Two Thousand Twenty Six Settlements For Provisional Sales[Member]
Silver 2026 Settlements For Provisional Sales [Member]
Business Combination [Axis]
Other Comprehensive Income Location [Axis]
Stock Issued During Period, Shares, Employee Stock Purchase Plans
Notes Payable, Noncurrent
Notes Payable, Noncurrent, Total
Long-term debt including finance leases
Discontinued Operation, Additional Disclosures [Abstract]
Maximum [Member]
Maximum [Member]
Gain (Loss) on Derivative Instruments Held for Trading Purposes, Net
Losss on derivative instruments
Total liabilities
Liabilities, Fair Value Disclosure
Liabilities, Fair Value Disclosure, Total
Designated as Hedging Instrument [Member]
Common stock issued for 401(k) match, shares (in shares)
Common stock issued for 401(k) match, shares (in shares)
The number of shares of stock issued during period for a 401k match.
Statistical Measurement [Axis]
Johnny M Mine Area near San Mateo, New Mexico [Member]
Responsibility under CERCLA for environmental remediation and past costs the EPA has incurred related to the Johnny M Mine Area near San Mateo, McKinley County, New Mexico.
Common Stock, Value, Issued
Common Stock Value
Common stock, $0.25 par value, authorized 1,250,000,000 shares; issued March 31, 2026 - 679,581,721 shares and December 31, 2025 - 679,220,408 shares
Loss on sale of Hecla Quebec Inc.
Loss on Sale of Investments
Silver 2023 Settlements for Provisional Sales [Member]
Silver Two Thousand Twenty Three Settlements For Provisional Sales [Member]
Silver TwoT housand TwentyT hree Settlements For Provisional Sales [Member]
Finance Lease, Principal Payments
Repayments of finance leases and other
Asset Acquisition, Average Gold Price
Asset Acquisition, Average Gold Price
Average gold price
Other current assets
Derivative Asset, Current
Other current assets
Long-Term Debt, Maturities, Repayments of Principal in Rolling Year Three
2029
Lead 2026 Settlements For Forecasted Sales Member
Lead 2026 Settlements For Forecasted Sales [Member]
Lead 2026 Settlements For Forecasted Sale [Member]
Dividends [Axis]
Conversion of warrants
Warrants and Rights Outstanding
Deferred cash consideration
Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations
Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations, Total
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Comprehensive income:
Payments to Employees
Salaries, wages and other benefits
Income (Loss) from Continuing Operations, Per Diluted Share
(Loss) from discontinued operations
Income from continuing operations
Securities Investment [Member]
Materials and Consumables Expenses
Materials and Consumables Expenses
Materials And Consumables
Accumulated Distributions in Excess of Net Income [Member]
Accumulated Distributions in Excess of Net Income [Member]
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Remaining
Disposal Group, Including Discontinued Operation, Accounts, Notes and Loans Remaining
Accounts receivable related to working capital remaining
Preferred stock, shares authorized (in shares)
Preferred Stock, Shares Authorized
Accrued interest
Interest Payable, Current
Inventory [Domain]
Assets of discontinued operations
Assets Of Discontinued Operations
Assets Of Discontinued Operations
Gold Two Thousand Twenty Five Settlements For Provisional Sales [Member]
Gold Two Thousand Twenty Five Settlements For Provisional Sales [Member]
Gold 2025 Settlements for Provisional Sales [Member]
Summary of Dividends Declared Pursuant to Dividend Policy
Schedule of Dividends Payable [Table Text Block]
COVID-19 Mitigation Costs
hl_COVID19MitigationCosts
Information on costs incurred related to mitigating the effect of COVID-19 mitigation.
Entity Registrant Name
Debt, Credit Agreement and Leases
Debt Disclosure [Text Block]
Environmental Remediation Site [Domain]
Production-Based Royalty Payments [Member]
Production-Based Royalty Payments [Member]
Discontinued Operation, Cost Of Goods And Services Sold
Discontinued Operation, Cost Of Goods And Services Sold
Discontinued Operation, Total cost of sales
Other Nonoperating Income (Expense)
Other Nonoperating Income (Expense), Total
Other income
Capital surplus
Additional Paid in Capital
Additional Paid in Capital, Total
Accumulated Other Comprehensive Income (Loss) [Table]
Conversion of Stock, Shares Issued
Warrants Issued
Subsequent Events [Abstract]
Accounts payable and accrued liabilities
Accounts Payable and Accrued Liabilities, Current
Accounts Payable and Accrued Liabilities, Current, Total
Disposal Group, Including Discontinued Operation, Depreciation and Amortization
Discontinued Operation, Depreciation, depletion and amortization
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member]
Finance Lease, Liability, to be Paid, Rolling Year Five
2031
Income Tax Expense (Benefit)
Total income and mining tax provision
Total income and mining tax (provision) benefit
Income and mining tax provision
Measurement Frequency [Axis]
Common stock dividends declared, per common share (in dollars per share)
Common Stock, Dividends, Per Share, Cash Paid
Payments to Acquire Assets
Payments to Acquire Productive Assets
Payments to Acquire Productive Assets, Total
EliminationOfIntersegmentSales [Member]
Elimination of Intersegment Sales [Member]
Elimination of Intersegment Sales [Member]
Proceeds from sale of common stock, net
Proceeds from Issuance of Common Stock
Common stock issued to settle the acquired silver stream, shares (in shares)
Stock issued during period shares to settle the acquired silver stream
Stock issued during period shares to settle the acquired silver stream
Stock issued during period shares to settle the acquired silver stream
Discontinued operations
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share
(Loss) income from discontinued operations
Entity Common Stock, Shares Outstanding
Disposal Group, Including Discontinued Operation, Materials and Supplies
Disposal Group, Including Discontinued Operation, Materials and Supplies
Discontinued Operation, Materials and supplies
Debt Instrument Call Premium
Debt Instrument Call Premium
Debt instrument call premium
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated Other Comprehensive Income (Loss), Net of Tax, Total
Accumulated other comprehensive loss, net
Consolidation Items [Axis]
Payments to Acquire Property, Plant, and Equipment
Payments to Acquire Property, Plant, and Equipment, Total
Additions to property, plants, equipment and mine development
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period
Number of Shares granted awarded, Shares
Identifiable assets
Assets
Total assets
Income Statement [Abstract]
Amortization of net loss
Defined Benefit Plan, Amortization of Gain (Loss)
Deferred Income Tax Expense (Benefit)
Deferred Income Tax Expense (Benefit), Total
Total deferred income and mining tax (provision) benefit
Current Derivatives Assets [Member]
Represents current derivatives assets.
Sale of Stock, Number of Shares Issued in Transaction
Sale of Stock, Number of Shares Issued in Transaction
Property, Plant, and Equipment, Salvage Value
Salvage Value Property, Plant and Mine
Asset acquisition, Recognized identifiable assets acquired and liabilities assumed, Silver stream liability
Asset acquisition, Recognized identifiable assets acquired and liabilities assumed, Silver stream liability
Asset acquisition, Recognized identifiable assets acquired and liabilities assumed, Silver stream liability
Diluted (loss) income per share:
Earnings Per Share, Diluted [Abstract]
Diluted earnings per common share
Earnings Per Share, Diluted
Earnings Per Share, Diluted, Total
Diluted (loss) earnings per common share
Tabular disclosure of maturity and sinking fund requirement for long-term debt and the undiscounted cash flows of finance and operating lease liability.
Schedule of Maturities of Long Term Debt and Finance and Operating Lease Liabilities [Table Text Block]
Schedule of Maturities of Long Term Debt and Finance and Operating Lease Liabilities
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Schedule of Information About Reportable Segments
Operating Segments [Member]
Disposal Group, Including Discontinued Operation, Mine Reclamation And Closing Liability Non current
Disposal Group, Including Discontinued Operation, Mine Reclamation And Closing Liability Noncurrent
Discontinued Operation, Accrued reclamation and closure costs
Purchase Commitment, Excluding Long-Term Commitment [Domain]
Asset Acquisition [Axis]
Disposal Group, Including Discontinued Operation, Assets
Discontinued Operation, Assets of discontinued operations
Assets of discontinued operations
City Area Code
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest, Total
Comprehensive loss from discontinued operations
Less: Net (loss) income from discontinued operations, net of taxes
Line of credit facility, maximum borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Fair Value, Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss)
Unrealized gain on equity securities investments
Ramp-up and suspension costs
Amount of expenses associated with a labor strike by a portion of the reporting entity's workforce.
Suspension costs
Silver Two Thousand Twenty Six Settlements For Forecasted Sales [Member]
Silver Two Thousand Twenty Six Settlements For Forecasted Sales [Member]
Silver 2026 Settlements For Forecasted Sales [Member]
Payment to Contractors
Payment to Contractors
Contractors
Finance Lease, Liability, to be Paid, Rolling Year Three
2029
June Twenty One Two Thousand Twenty Two [Member]
June twenty one two thousand twenty two.
Description of Fair Value Hedge Activity
Description of hedge activity
Award Date [Axis]
Letter of Credit [Member]
Proceeds from Investment Sales
The cash inflow associated with the sale of investments.
Proceeds from sales of investments
Nonoperating Income (Expense) [Member]
Contracts in liability position
Derivative Liability, Current
Other current liabilities
Derivative liabilities
Property, Plant and Equipment, Net
Property, Plant and Equipment, Net, Total
Property, plants, equipment and mine development, net
Reclassification from AOCI to Cost of Sales and Other Direct Production Costs
Reclassification from AOCI to Cost of Sales and Other Direct Production Costs
Reclassification from AOCI to cost of sales and other direct production costs
Foreign
Deferred Foreign Income Tax Expense (Benefit)
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent
Disposal Group, Including Discontinued Operation, Liabilities, Noncurrent, Total
Liabilities of discontinued operations
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation
Cash, cash equivalents and restricted cash and cash equivalents at beginning of period
Cash, cash equivalents and restricted cash and cash equivalents at end of period
Total cash and cash equivalents and restricted cash and cash equivalents as reported on the consolidated cash flow statement
Operating Income (Loss)
Income from operations
Income from operations
Income from continuing operations
Award Date [Domain]
Zinc 2023 Settlements for Provisional Sales [Member]
ZincTwoThousandTwentyThreeSettlementsForProvisionalSales [Member]
ZincTwoThousandTwentyThreeSettlementsForProvisionalSales [Member]
Accumulated Deficit
Retained Earnings [Member]
Common stock issued to pension plans, shares (in shares)
Stock Issued During Period, Shares, Employee Benefit Plan
Common stock issued as incentive compensation
Stock-based compensation
Share-Based Payment Arrangement, Noncash Expense
Share-Based Payment Arrangement, Noncash Expense, Total
Stock-based compensation expense
Asset acquisition, Consideration transferred
Asset Acquisition, Consideration Transferred
Asset Acquisition, Consideration Transferred, Total
Deferred cash consideration
Payments of Stock Issuance Costs
Payments of Stock Issuance Costs
Debt instrument, basis spread on variable rate, applicable margin
Debt Instrument, Basis Spread on Variable Rate, Applicable Margin
Debt Instrument, Basis Spread on Variable Rate, Applicable Margin
Fair Value, Inputs, Level 1 [Member]
Notes to Financial Statements
Disclosure Text Block [Abstract]
Cash Provided by (Used in) Financing Activity, Including Discontinued Operation
Net cash (used in) provided by financing activities
Notes Payable
Notes Payable, Total
Notes Payable, Total
Permit Receipt Payment [Member]
Permit Receipt Payment [Member]
Zinc 2026 Settlements For Forecasted Sales [Member]
Zinc 2026 Settlements For Forecasted Sales [Member]
Debt Instrument Carrying Amount After Unamortized Discount Premium And Issuance Costs
Debt Instrument Carrying Amount After Unamortized Discount Premium And Issuance Costs
Total debt
Treasury Stock, Preferred, Shares
Lead Two Thousand Twenty Six Settlements For Provisional Sales [Member]
Lead Two Thousand Twenty Six Settlements For Provisional Sales [Member]
Lead 2026 Settlements For Provisional Sales [Member]
Current derivatives liability [Member]
Primary financial statement caption encompassing current derivatives liability.
Other Current Liabilities [Member]
Accrued reclamation and closure costs and other non-current liabilities
hl_IncreaseDecreaseInAccruedReclamationAndClosureCostsAndOtherNonCurrentLiabilities
Increase decrease in accrued reclamation and closure costs and other non-current liabilities.
Lead 2025 Settlements for Forecasted Sales [Member]
Lead2025 Settlements For Forecasted Sales Member
Lead 2025 Settlements For Forecasted Sales [Member]
Deferred Income Tax Liabilities, Net
Deferred tax liabilities
Notes:
Long-Term Debt, Rolling Maturity [Abstract]
Nonoperating Income (Expense) [Abstract]
Other income (expense):
Non-current derivatives liabilities
Derivative Liability, Noncurrent
Other non-current liabilities
Derivative Contract [Domain]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
ATAC Resources Ltd [Member]
ATAC Resources Ltd [Member]
ATAC Resources Ltd
Entity Interactive Data Current
Notes To Financial Statements Abstract
Notes To Financial Statements [Abstract]
Statement of Income Location, Balance [Domain]
Operating activities:
Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract]
Maximum offense fine
Maximum Offense Fine
Maximum Offense Fine
Recent Accounting Pronouncements
Accounting Standards Update and Change in Accounting Principle [Text Block]
Segment Reporting, Revenue Reconciling Item [Line Items]
Debt Instrument, Periodic Payment, Interest
Payment of Interest
Disposal Group, Including Discontinued Operation, Gross Profit (Loss)
Discontinued Operation, Gross profit
Discontinued Operation, Gross profit
Casa Berardi [Member]
Reporting segment classified as Casa Berardi.
Stock Issued During Period, Shares, Issued for Services
Common stock issued to ATAC Resources Ltd. shareholders (3,676,904 shares)
Schedules of Concentration of Risk, by Risk Factor [Table Text Block]
Schedule of Total Assets by Reportable Segment
Letters of credit, drawn amount
Line of Credit Facility, Current Borrowing Capacity
Option Indexed to Issuer's Equity, Type [Domain]
Entity Tax Identification Number
Zinc 2024 Settlements for Provisional Sales [Member]
Zinc Two Thousand Twenty Four Settlements for Provisional Sales [Member]
Zinc Two Thousand Twenty Four Settlements for Provisional Sales [Member]
Long-Term Debt, Maturities, Repayments of Principal in Next Rolling 12 Months
2027
Long-Term Debt, Type [Axis]
Materials and supplies
Other Inventory, Supplies, Gross
Unsettled Concentrate Sales Contracts [Member]
Unsettled concentrate sales contracts [member
Income Tax Authority, Name [Domain]
Proceeds from Issuance or Sale of Equity
Proceeds from Issuance or Sale of Equity
Proceeds from Issuance or Sale of Equity, Total
Local Phone Number
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)
Net periodic pension cost
Other current liabilities
Other Liabilities, Current
Asset acquisition, recognized identifiable assets acquired and liabilities assumed, net liabilities
Asset acquisition, Recognized identifiable assets acquired and liabilities assumed, Net liabilities
Asset acquisition, Recognized identifiable assets acquired and liabilities assumed, Net liabilities
Orezone [Member]
Orezone [Member]
Derivative Liability, Current, Statement of Financial Position [Extensible Enumeration]
Other current liabilities
Inventories:
Inventory, Net [Abstract]
Class of Stock [Domain]
Performance based, June 21, 2024 [Member]
Performance Shares One June Twenty One Two Thousand Twenty Four
Performance Shares One June Twenty One Two Thousand Twenty Four [Member]
Settlement Under Collars [Member]
Settlement Under Collars [Member]
Settlement Under Collars [Member]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Debt Instrument, Participation Fee, Percent
Debt Instrument, Participation Fee, Percent
Debt instrument, participation fee, percent
Entity Emerging Growth Company
Disposal Group, Including Discontinued Operation, Operating Income (Loss)
Discontinued Operation, Income from discontinued operations