$HL
HECLA MINING CO/DE/ Stock $hl

$hl Overview Financials Valuation SEC Filings Company Website

2021 Q4 Form 10-Q Financial Statement

#000143774921025360 Filed on November 05, 2021

Income Statement

Concept	2021 Q4	2021 Q3	2020 Q3
Revenue	$185.1M	$193.6M	$199.7M
YoY Change	-2.02%	-3.08%	23.63%
Cost Of Revenue	$131.8M	$158.3M	$141.0M
YoY Change	-7.22%	12.28%	-3.84%
Gross Profit	$53.24M	$35.23M	$58.69M
YoY Change	13.76%	-39.97%	294.41%
Gross Profit Margin	28.77%	18.2%	29.39%
Selling, General & Admin	$6.585M	$8.874M	$11.70M
YoY Change	-16.65%	-24.15%	46.25%
% of Gross Profit	12.37%	25.19%	19.94%
Research & Development	$19.91M	$17.11M	$0.00
YoY Change	134.21%		-100.0%
% of Gross Profit	37.39%	48.56%	0.0%
Depreciation & Amortization	$32.85M	$41.68M	$42.70M
YoY Change	-11.45%	-2.39%	-18.2%
% of Gross Profit	61.7%	118.31%	72.76%
Operating Expenses	$25.34M	$43.80M	$22.17M
YoY Change	22.39%	97.54%	10.9%
Operating Profit	$27.91M	-$8.572M	$36.52M
YoY Change	6.92%	-123.48%	-814.16%
Interest Expense	-$35.21M	$10.47M	$10.78M
YoY Change	37.54%	-2.88%	-8.47%
% of Operating Profit	-126.17%		29.52%
Other Income/Expense, Net	-$382.0K	$3.060M	-$16.05M
YoY Change	282.0%	-119.06%	0.23%
Pretax Income	-$13.77M	-$5.512M	$20.46M
YoY Change	4490.0%	-126.94%	-196.83%
Income Tax	-$25.65M	-$4.533M	$5.181M
% Of Pretax Income			25.32%
Net Earnings	$11.88M	-$979.0K	$15.28M
YoY Change	1384.38%	-106.41%	-178.29%
Net Earnings / Revenue	6.42%	-0.51%	7.65%
Basic Earnings Per Share		$0.00	$0.03
Diluted Earnings Per Share	$21.85K	$0.00	$0.03
COMMON SHARES
Basic Shares Outstanding	538.1M	537.0M	529.8M
Diluted Shares Outstanding		537.0M	535.8M

Balance Sheet

Concept	2021 Q4	2021 Q3	2020 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments	$210.0M	$190.9M	$98.70M
YoY Change	61.8%	93.42%	199.09%
Cash & Equivalents	$210.0M	$190.9M	$98.67M
Short-Term Investments
Other Short-Term Assets	$16.56M	$12.74M	$7.301M
YoY Change	-13.38%	74.55%	-29.8%
Inventory	$67.77M	$58.44M	$87.60M
Prepaid Expenses
Receivables	$36.44M	$32.82M	$28.50M
Other Receivables	$8.149M	$10.15M	$12.90M
Total Short-Term Assets	$341.6M	$310.3M	$235.2M
YoY Change	20.16%	31.95%	31.43%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.311B	$2.331B	$2.342B
YoY Change	-2.83%	-0.47%	-4.62%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$10.84M	$8.030M	$17.40M
YoY Change	-28.19%	-53.85%	138.36%
Other Assets	$3.974M	$3.511M	$4.205M
YoY Change	-50.84%	-16.5%	-55.04%
Total Long-Term Assets	$2.387B	$2.364B	$2.380B
YoY Change	-1.19%	-0.67%	-4.58%
TOTAL ASSETS
Total Short-Term Assets	$341.6M	$310.3M	$235.2M
Total Long-Term Assets	$2.387B	$2.364B	$2.380B
Total Assets	$2.729B	$2.674B	$2.615B
YoY Change	1.06%	2.27%	-2.17%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$68.10M	$62.57M	$55.30M
YoY Change	-0.58%	13.15%	-4.49%
Accrued Expenses	$54.91M	$45.14M	$43.60M
YoY Change	0.57%	3.52%	-15.34%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$5.612M	$5.637M	$6.200M
YoY Change	-13.66%	-9.08%	8.77%
Total Short-Term Liabilities	$160.4M	$126.2M	$125.4M
YoY Change	8.95%	0.63%	-14.02%
LONG-TERM LIABILITIES
Long-Term Debt	$515.9M	$516.3M	$503.7M
YoY Change	-0.12%	2.49%	-13.84%
Other Long-Term Liabilities	$9.611M	$4.787M	$6.153M
YoY Change	121.15%	-22.2%	-24.16%
Total Long-Term Liabilities	$9.611M	$4.787M	$6.153M
YoY Change	121.15%	-22.2%	-98.96%
TOTAL LIABILITIES
Total Short-Term Liabilities	$160.4M	$126.2M	$125.4M
Total Long-Term Liabilities	$9.611M	$4.787M	$6.153M
Total Liabilities	$968.0M	$931.4M	$921.5M
YoY Change	-1.87%	1.08%	-12.78%
SHAREHOLDERS EQUITY
Retained Earnings	-$353.7M	-$362.0M	-$375.5M
YoY Change	-3.92%	-3.6%	9.18%
Common Stock	$136.4M	$136.4M	$134.4M
YoY Change	1.31%	1.44%	8.29%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$28.02M	$28.02M	$23.50M
YoY Change	19.26%	19.26%	2.27%
Treasury Stock Shares	$7.395M	$7.395M	$6.821M
Shareholders Equity	$1.761B	$1.743B	$1.703B
YoY Change
Total Liabilities & Shareholders Equity	$2.729B	$2.674B	$2.615B
YoY Change	1.06%	2.27%	-2.17%

Cashflow Statement

Concept	2021 Q4	2021 Q3	2020 Q3
OPERATING ACTIVITIES
Net Income	$11.88M	-$979.0K	$15.28M
YoY Change	1384.38%	-106.41%	-178.29%
Depreciation, Depletion And Amortization	$32.85M	$41.68M	$42.70M
YoY Change	-11.45%	-2.39%	-18.2%
Cash From Operating Activities	$53.35M	$42.74M	$73.40M
YoY Change	-17.79%	-41.77%	33.7%
INVESTING ACTIVITIES
Capital Expenditures	-$28.84M	-$26.90M	-$23.70M
YoY Change	-21.21%	13.5%	-9.2%
Acquisitions
YoY Change
Other Investing Activities	-$154.0K	$2.042M	-$1.000M
YoY Change	-69.2%	-304.2%	-162.5%
Cash From Investing Activities	-$28.99M	-$24.86M	-$24.60M
YoY Change	-22.06%	1.04%	0.0%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-5.198M	-8.032M	-26.00M
YoY Change	-299.92%	-69.11%	293.94%
NET CHANGE
Cash From Operating Activities	53.35M	42.74M	73.40M
Cash From Investing Activities	-28.99M	-24.86M	-24.60M
Cash From Financing Activities	-5.198M	-8.032M	-26.00M
Net Change In Cash	19.17M	9.853M	22.80M
YoY Change	-36.75%	-56.79%	-3.8%
FREE CASH FLOW
Cash From Operating Activities	$53.35M	$42.74M	$73.40M
Capital Expenditures	-$28.84M	-$26.90M	-$23.70M
Free Cash Flow	$82.19M	$69.64M	$97.10M
YoY Change	-19.02%	-28.28%	19.88%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021Q4	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	538139465
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.002
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.029
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.043
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.025
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.002
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.028
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.042
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.025
CY2021Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.01125
CY2020Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.0025
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.03125
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.00750
CY2021Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2020Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2021Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2020Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2021Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.25
CY2020Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.25
CY2021Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	157816
CY2021Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	157816
CY2020Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	157816
CY2020Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	157816
CY2021Q3	us-gaap	Preferred Stock Liquidation Preference Value PreferredStockLiquidationPreferenceValue	7891000	USD
CY2020Q4	us-gaap	Preferred Stock Liquidation Preference Value PreferredStockLiquidationPreferenceValue	7891000	USD
CY2021Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.25
CY2020Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.25
CY2021Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	750000000
CY2020Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	750000000
CY2021Q3	hl	Common Stock Shares Issued Less Treasury Shares CommonStockSharesIssuedLessTreasuryShares	545371827
CY2020Q4	hl	Common Stock Shares Issued Less Treasury Shares CommonStockSharesIssuedLessTreasuryShares	538487415
CY2021Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	7395295
CY2020Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	6821044
CY2021Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.01125
CY2021Q3	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	0.875
CY2021Q3	hl	Stock Issued During Period Shares401k Match StockIssuedDuringPeriodShares401kMatch	141000
CY2020Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.030
CY2020Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.023
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	622395000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	502983000	USD
CY2021Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.04
CY2021Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.04
CY2021Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.005
CY2021Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.005
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.043
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.043
CY2020Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.030
CY2020Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.023
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.054
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.054
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.029
CY2021Q3	us-gaap	Stock Issued During Period Shares Employee Benefit Plan StockIssuedDuringPeriodSharesEmployeeBenefitPlan	1000000
CY2020Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.0025
CY2020Q3	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	0.875
CY2020Q3	hl	Stock Issued During Period Shares401k Match StockIssuedDuringPeriodShares401kMatch	439000
CY2020Q3	us-gaap	Stock Issued During Period Shares Employee Benefit Plan StockIssuedDuringPeriodSharesEmployeeBenefitPlan	2058000
CY2020Q3	hl	Stock Issued During Period Shares Directors StockIssuedDuringPeriodSharesDirectors	391000
	hl	Restricted Stock Unit Distributions Shares RestrictedStockUnitDistributionsShares	1653000
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.03125
	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	2.625
	hl	Stock Issued During Period Shares401k Match StockIssuedDuringPeriodShares401kMatch	524000
	us-gaap	Stock Issued During Period Shares Employee Benefit Plan StockIssuedDuringPeriodSharesEmployeeBenefitPlan	4500000
	hl	Stock Issued During Period Shares Directors StockIssuedDuringPeriodSharesDirectors	207000
	hl	Restricted Stock Unit Distributions Shares RestrictedStockUnitDistributionsShares	1702000
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.0075
	us-gaap	Preferred Stock Dividends Per Share Declared PreferredStockDividendsPerShareDeclared	2.625
	hl	Stock Issued During Period Shares401k Match StockIssuedDuringPeriodShares401kMatch	1396000
	us-gaap	Stock Issued During Period Shares Share Based Compensation StockIssuedDuringPeriodSharesShareBasedCompensation	2800000
	us-gaap	Stock Issued During Period Shares Employee Benefit Plan StockIssuedDuringPeriodSharesEmployeeBenefitPlan	2225000
	hl	Stock Issued During Period Shares Directors StockIssuedDuringPeriodSharesDirectors	391000
	hl	Treasury Shares Issued To Charitable Foundation Share TreasurySharesIssuedToCharitableFoundationShare	650000
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.028
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.025
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.025
CY2018	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.063
CY2018	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.063
CY2019	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.195
CY2019	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.195
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.019
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.019
CY2021Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.002
CY2020Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.029
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.043
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.025
CY2021Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.002
CY2020Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.028
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.042
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.025
CY2021Q2	hl	Share Based Compensation Arrangement By Share Based Payment Award Measurement Period Used To Value Performance Based Awards ShareBasedCompensationArrangementByShareBasedPaymentAwardMeasurementPeriodUsedToValuePerformanceBasedAwards	P3Y
CY2021Q2	hl	Silverlinked Dividend Per Share Increase SilverlinkedDividendPerShareIncrease	0.01
CY2021Q3	us-gaap	Dividends Dividends	6000000.0	USD
	hl	Forecasted Cad Denominated Operating Costs To Be Hedged Term ForecastedCADDenominatedOperatingCostsToBeHedgedTerm	P5Y
CY2021Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	193560000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	199703000	USD
	hl	Predevelopment Predevelopment	1857000	USD
CY2021Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	3344000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	27985000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	27631000	USD
CY2021Q3	hl	Exploration Exploration	13675000	USD
CY2020Q3	hl	Exploration Exploration	3407000	USD
	hl	Exploration Exploration	27993000	USD
	hl	Exploration Exploration	7899000	USD
CY2021Q3	hl	Predevelopment Predevelopment	3433000	USD
CY2020Q3	hl	Predevelopment Predevelopment	759000	USD
	hl	Predevelopment Predevelopment	7046000	USD
CY2020Q3	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	3499000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	10626000	USD
	us-gaap	Other Cost And Expense Operating OtherCostAndExpenseOperating	5864000	USD
CY2021Q3	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	7564000	USD
CY2021Q3	hl	Cost Of Goods Sold Before Depreciation Depletion And Amortization CostOfGoodsSoldBeforeDepreciationDepletionAndAmortization	112542000	USD
CY2020Q3	hl	Cost Of Goods Sold Before Depreciation Depletion And Amortization CostOfGoodsSoldBeforeDepreciationDepletionAndAmortization	103025000	USD
	hl	Cost Of Goods Sold Before Depreciation Depletion And Amortization CostOfGoodsSoldBeforeDepreciationDepletionAndAmortization	318917000	USD
	hl	Cost Of Goods Sold Before Depreciation Depletion And Amortization CostOfGoodsSoldBeforeDepreciationDepletionAndAmortization	280303000	USD
CY2021Q3	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	45790000	USD
CY2020Q3	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	37990000	USD
	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	138918000	USD
	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	112492000	USD
CY2021Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	158332000	USD
CY2020Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	141015000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	457835000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	392795000	USD
CY2021Q3	us-gaap	Gross Profit GrossProfit	35228000	USD
CY2020Q3	us-gaap	Gross Profit GrossProfit	58688000	USD
	us-gaap	Gross Profit GrossProfit	164560000	USD
	us-gaap	Gross Profit GrossProfit	110188000	USD
CY2021Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	8874000	USD
CY2020Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	11713000	USD
CY2020Q3	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	1254000	USD
	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	12297000	USD
	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	2807000	USD
CY2021Q3	hl	Employee Labor Strike Related Costs EmployeeLaborStrikeRelatedCosts	6910000	USD
CY2020Q3	hl	Employee Labor Strike Related Costs EmployeeLaborStrikeRelatedCosts	1541000	USD
	hl	Employee Labor Strike Related Costs EmployeeLaborStrikeRelatedCosts	17014000	USD
	hl	Employee Labor Strike Related Costs EmployeeLaborStrikeRelatedCosts	24109000	USD
CY2021Q3	hl	Foundation Grant Expense FoundationGrantExpense	0	USD
CY2020Q3	hl	Foundation Grant Expense FoundationGrantExpense	0	USD
	hl	Foundation Grant Expense FoundationGrantExpense	0	USD
	hl	Foundation Grant Expense FoundationGrantExpense	1970000	USD
CY2021Q3	us-gaap	Operating Expenses OperatingExpenses	43800000	USD
CY2020Q3	us-gaap	Operating Expenses OperatingExpenses	22173000	USD
	us-gaap	Operating Expenses OperatingExpenses	102961000	USD
	us-gaap	Operating Expenses OperatingExpenses	72137000	USD
CY2021Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-8572000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	36515000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	61599000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	38051000	USD
CY2021Q3	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	12148000	USD
CY2020Q3	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	-6666000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-5139000	USD
	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	-4692000	USD
	us-gaap	Interest Expense InterestExpense	38919000	USD
CY2021Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	3060000	USD
CY2020Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-16054000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-42303000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-43190000	USD
CY2021Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-5512000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	20461000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	19296000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-4533000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5181000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3924000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7423000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	-979000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	15280000	USD
	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	-12775000	USD
CY2021Q3	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	USD
CY2020Q3	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	1158000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	0	USD
CY2021Q3	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-2861000	USD
CY2020Q3	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	3979000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-7117000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	9410000	USD
CY2021Q3	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	3995000	USD
CY2020Q3	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-2196000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	24000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	1235000	USD
CY2021Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	247000	USD
CY2020Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-392000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-192000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-2141000	USD
CY2021Q3	us-gaap	Interest Expense InterestExpense	10469000	USD
CY2020Q3	us-gaap	Interest Expense InterestExpense	10779000	USD
	us-gaap	Interest Expense InterestExpense	31484000	USD
	us-gaap	Net Income Loss NetIncomeLoss	23220000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-12562000	USD
CY2021Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	138000	USD
CY2020Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	138000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	414000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	414000	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-1117000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	15142000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	22806000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-12976000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	-979000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	15280000	USD
	us-gaap	Net Income Loss NetIncomeLoss	23220000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-12562000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-6267000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	6150000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-2815000	USD
	us-gaap	Other Comprehensive Income Loss Cash Flow Hedge Gain Loss After Reclassification And Tax Parent OtherComprehensiveIncomeLossCashFlowHedgeGainLossAfterReclassificationAndTaxParent	-2801000	USD
CY2021Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-7246000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	4578000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1406000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	3066000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	21430000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	20405000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-15363000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	536966000
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	529838000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	535542000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	526098000
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	536966000
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	535788000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	541769000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	526098000
	us-gaap	Net Income Loss NetIncomeLoss	23220000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-12562000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	139800000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	120076000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	1158000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-0	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-7117000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	9410000	USD
	us-gaap	Inventory Write Down InventoryWriteDown	6524000	USD
	us-gaap	Inventory Write Down InventoryWriteDown	0	USD
	us-gaap	Environmental Expense And Liabilities EnvironmentalExpenseAndLiabilities	7821000	USD
	us-gaap	Environmental Expense And Liabilities EnvironmentalExpenseAndLiabilities	4638000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	4774000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	5229000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	17886000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	13937000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-4483000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-615000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	2810000	USD
	hl	Foundation Grant Expense FoundationGrantExpense	0	USD
	hl	Foundation Grant Expense FoundationGrantExpense	1970000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	239000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-559000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	3798000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	3741000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-22372000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	13090000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-1650000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-6748000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-14689000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-1762000	USD
	us-gaap	Increase Decrease In Accrued Salaries IncreaseDecreaseInAccruedSalaries	-1829000	USD
	us-gaap	Increase Decrease In Accrued Salaries IncreaseDecreaseInAccruedSalaries	11317000	USD
	us-gaap	Increase Decrease In Property And Other Taxes Payable IncreaseDecreaseInPropertyAndOtherTaxesPayable	2730000	USD
	us-gaap	Increase Decrease In Property And Other Taxes Payable IncreaseDecreaseInPropertyAndOtherTaxesPayable	3276000	USD
	hl	Increase Decrease In Accrued Reclamation And Closure Costs And Other Non Current Liabilities IncreaseDecreaseInAccruedReclamationAndClosureCostsAndOtherNonCurrentLiabilities	-2489000	USD
	hl	Increase Decrease In Accrued Reclamation And Closure Costs And Other Non Current Liabilities IncreaseDecreaseInAccruedReclamationAndClosureCostsAndOtherNonCurrentLiabilities	-2483000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	166982000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	115892000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	80210000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	54382000	USD
	hl	Payments For Carbon Credits PaymentsForCarbonCredits	200000	USD
	us-gaap	Interest Paid Net InterestPaidNet	33828000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	10299000	USD
	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	-2608000	USD
	hl	Finance Lease Liability Additions FinanceLeaseLiabilityAdditions	4006000	USD
	hl	Payments For Carbon Credits PaymentsForCarbonCredits	-0	USD
	hl	Proceeds From Sale Of Investments ProceedsFromSaleOfInvestments	1811000	USD
	hl	Proceeds From Sale Of Investments ProceedsFromSaleOfInvestments	0	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	562000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	305000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	-0	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	1661000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-78037000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-55738000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	4525000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2745000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	16755000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	3951000	USD
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	414000	USD
	us-gaap	Payments Of Dividends Preferred Stock And Preference Stock PaymentsOfDividendsPreferredStockAndPreferenceStock	414000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	108000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	1287000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	707107000	USD
	us-gaap	Repayments Of Debt RepaymentsOfDebt	-0	USD
	us-gaap	Repayments Of Debt RepaymentsOfDebt	716500000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	5598000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	4246000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-27400000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-22036000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-471000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-1873000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	61074000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	36245000	USD
CY2020Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	130883000	USD
CY2019Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	63477000	USD
CY2021Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	191957000	USD
CY2020Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	99722000	USD
	us-gaap	Interest Paid Net InterestPaidNet	37173000	USD
	hl	Finance Lease Liability Additions FinanceLeaseLiabilityAdditions	5747000	USD
	us-gaap	Restricted Stock Expense RestrictedStockExpense	0	USD
	us-gaap	Restricted Stock Expense RestrictedStockExpense	5095000	USD
CY2021Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	190904000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	129830000	USD
CY2021Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	32821000	USD
CY2020Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	27864000	USD
CY2021Q3	us-gaap	Other Receivables OtherReceivables	10152000	USD
CY2020Q4	us-gaap	Other Receivables OtherReceivables	11329000	USD
CY2021Q3	us-gaap	Inventory Finished Goods InventoryFinishedGoods	17594000	USD
CY2020Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	57567000	USD
CY2021Q3	us-gaap	Other Inventory Supplies OtherInventorySupplies	40845000	USD
CY2020Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	38608000	USD
CY2021Q3	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	5220000	USD
CY2020Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	3470000	USD
CY2021Q3	us-gaap	Other Assets Current OtherAssetsCurrent	12744000	USD
CY2020Q4	us-gaap	Other Assets Current OtherAssetsCurrent	15644000	USD
CY2021Q3	us-gaap	Assets Current AssetsCurrent	310280000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	284312000	USD
CY2021Q3	us-gaap	Long Term Investments LongTermInvestments	8030000	USD
CY2020Q4	us-gaap	Long Term Investments LongTermInvestments	15148000	USD
CY2021Q3	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	1053000	USD
CY2020Q4	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	1053000	USD
CY2021Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2331018000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2378074000	USD
CY2021Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	8201000	USD
CY2020Q4	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	10628000	USD
CY2021Q3	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	5576000	USD
CY2020Q4	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	2912000	USD
CY2021Q3	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	6748000	USD
CY2020Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	4558000	USD
CY2021Q3	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	3511000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	3525000	USD
CY2021Q3	us-gaap	Assets Assets	2674417000	USD
CY2020Q4	us-gaap	Assets Assets	2700210000	USD
CY2021Q3	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	62571000	USD
CY2020Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	68516000	USD
CY2021Q3	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	26493000	USD
CY2020Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	31807000	USD
CY2021Q3	us-gaap	Taxes Payable Current TaxesPayableCurrent	8557000	USD
CY2020Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	5774000	USD
CY2021Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	5637000	USD
CY2020Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	6491000	USD
CY2021Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	2385000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	3008000	USD
CY2021Q3	us-gaap	Accrued Reclamation Costs Current AccruedReclamationCostsCurrent	11036000	USD
CY2020Q4	us-gaap	Accrued Reclamation Costs Current AccruedReclamationCostsCurrent	5582000	USD
CY2021Q3	us-gaap	Interest Payable Current InterestPayableCurrent	5221000	USD
CY2020Q4	us-gaap	Interest Payable Current InterestPayableCurrent	14157000	USD
CY2021Q3	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	4179000	USD
CY2020Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	11737000	USD
CY2021Q3	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	103000	USD
CY2020Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	138000	USD
CY2021Q3	us-gaap	Liabilities Current LiabilitiesCurrent	126182000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	147210000	USD
CY2021Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	8540000	USD
CY2020Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	9274000	USD
CY2021Q3	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	5820000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	7634000	USD
CY2021Q3	us-gaap	Mine Reclamation And Closing Liability Noncurrent MineReclamationAndClosingLiabilityNoncurrent	108670000	USD
CY2020Q4	us-gaap	Mine Reclamation And Closing Liability Noncurrent MineReclamationAndClosingLiabilityNoncurrent	110466000	USD
CY2021Q3	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	507712000	USD
CY2020Q4	us-gaap	Long Term Line Of Credit LongTermLineOfCredit	507242000	USD
CY2021Q3	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	142750000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	156091000	USD
CY2021Q3	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	26229000	USD
CY2020Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	44144000	USD
CY2021Q3	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	752000	USD
CY2020Q4	us-gaap	Derivative Liabilities Noncurrent DerivativeLiabilitiesNoncurrent	18000	USD
CY2021Q3	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	4787000	USD
CY2020Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	4346000	USD
CY2021Q3	us-gaap	Liabilities Liabilities	931442000	USD
	us-gaap	Net Income Loss NetIncomeLoss	23220000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	2930000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	986425000	USD
CY2021Q3	us-gaap	Preferred Stock Value PreferredStockValue	39000	USD
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	39000	USD
CY2021Q3	us-gaap	Common Stock Value CommonStockValue	136350000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	134629000	USD
CY2021Q3	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	2032334000	USD
CY2020Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	2003576000	USD
CY2021Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-362023000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-368074000	USD
CY2021Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-35704000	USD
CY2020Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-32889000	USD
CY2021Q3	us-gaap	Treasury Stock Value TreasuryStockValue	28021000	USD
CY2020Q4	us-gaap	Treasury Stock Value TreasuryStockValue	23496000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	1742975000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	1713785000	USD
CY2021Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2674417000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2700210000	USD
CY2021Q2	us-gaap	Stockholders Equity StockholdersEquity	1748425000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	-979000	USD
CY2021Q3	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	1472000	USD
CY2021Q3	us-gaap	Dividends Common Stock DividendsCommonStock	6040000	USD
CY2021Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	138000	USD
CY2021Q3	hl	Stock Issued During Period Value401k Match StockIssuedDuringPeriodValue401kMatch	1052000	USD
CY2021Q3	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	5450000	USD
CY2021Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-6267000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	1742975000	USD
CY2020Q2	us-gaap	Stockholders Equity StockholdersEquity	1666176000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	15280000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	1317000	USD
CY2020Q3	us-gaap	Dividends Common Stock DividendsCommonStock	1330000	USD
CY2020Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	138000	USD
CY2020Q3	hl	Stock Issued During Period Value401k Match StockIssuedDuringPeriodValue401kMatch	1413000	USD
CY2020Q3	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	12431000	USD
CY2020Q3	hl	Stock Issued During Period Value Directors StockIssuedDuringPeriodValueDirectors	1483000	USD
CY2020Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	6150000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	1702782000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	1713785000	USD
	hl	Restricted Stock Unit Distributions RestrictedStockUnitDistributions	-4525000	USD
	us-gaap	Dividends Common Stock DividendsCommonStock	16755000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	414000	USD
	hl	Stock Issued During Period Value401k Match StockIssuedDuringPeriodValue401kMatch	3455000	USD
	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	22250000	USD
	hl	Stock Issued During Period Value Directors StockIssuedDuringPeriodValueDirectors	1844000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2815000	USD
CY2021Q3	us-gaap	Stockholders Equity StockholdersEquity	1742975000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1696534000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-12562000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	3746000	USD
	hl	Restricted Stock Unit Distributions RestrictedStockUnitDistributions	-1479000	USD
	us-gaap	Dividends Common Stock DividendsCommonStock	3951000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	414000	USD
	hl	Stock Issued During Period Value401k Match StockIssuedDuringPeriodValue401kMatch	3645000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	3830000	USD
	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	12781000	USD
	hl	Stock Issued During Period Value Directors StockIssuedDuringPeriodValueDirectors	1483000	USD
	hl	Treasury Shares Issued To Charitable Foundation Value TreasurySharesIssuedToCharitableFoundationValue	1970000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-2801000	USD
CY2020Q3	us-gaap	Stockholders Equity StockholdersEquity	1702782000	USD
CY2021Q1	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	46742000	USD
CY2021Q1	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	143451000	USD
CY2021Q1	us-gaap	Gross Profit GrossProfit	67401000	USD
CY2021Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	41038000	USD
CY2021Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	26194000	USD
CY2021Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4743000	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	21451000	USD
CY2021Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	21313000	USD
CY2021Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	23283000	USD
CY2021Q1	us-gaap	Net Income Loss NetIncomeLoss	21451000	USD
CY2021Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	46957000	USD
CY2021Q1	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	141000	USD
CY2021Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	37936000	USD
CY2021Q2	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	45732000	USD
CY2021Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	156052000	USD
CY2021Q2	us-gaap	Gross Profit GrossProfit	61931000	USD
CY2021Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	29133000	USD
CY2021Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1386000	USD
CY2021Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-4134000	USD
CY2021Q2	us-gaap	Net Income Loss NetIncomeLoss	2748000	USD
CY2021Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	2610000	USD
CY2021Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	4368000	USD
	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	92474000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	299503000	USD
	us-gaap	Gross Profit GrossProfit	129332000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	70171000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	24808000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	609000	USD
	us-gaap	Net Income Loss NetIncomeLoss	24199000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	23923000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	27651000	USD
	us-gaap	Net Income Loss NetIncomeLoss	24199000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	92861000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-7745000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	124240000	USD
CY2020Q1	hl	Cost Of Goods Sold Before Depreciation Depletion And Amortization CostOfGoodsSoldBeforeDepreciationDepletionAndAmortization	85720000	USD
CY2020Q1	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	37815000	USD
CY2020Q1	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	123535000	USD
CY2020Q1	us-gaap	Gross Profit GrossProfit	13390000	USD
CY2020Q1	us-gaap	Operating Income Loss OperatingIncomeLoss	-13046000	USD
CY2020Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-16229000	USD
CY2020Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-405000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-15824000	USD
CY2020Q1	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-15962000	USD
CY2020Q1	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-35159000	USD
CY2020Q1	us-gaap	Net Income Loss NetIncomeLoss	-15824000	USD
CY2020Q1	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	39779000	USD
CY2020Q1	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-2762000	USD
CY2020Q1	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	4927000	USD
CY2020Q2	hl	Cost Of Goods Sold Before Depreciation Depletion And Amortization CostOfGoodsSoldBeforeDepreciationDepletionAndAmortization	91558000	USD
CY2020Q2	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	36687000	USD
CY2020Q2	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	128245000	USD
CY2020Q2	us-gaap	Gross Profit GrossProfit	38110000	USD
CY2020Q2	us-gaap	Operating Income Loss OperatingIncomeLoss	13905000	USD
CY2020Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-9371000	USD
CY2020Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2646000	USD
CY2020Q2	us-gaap	Net Income Loss NetIncomeLoss	-12017000	USD
CY2020Q2	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-12155000	USD
CY2020Q2	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-1633000	USD
	hl	Cost Of Goods Sold Before Depreciation Depletion And Amortization CostOfGoodsSoldBeforeDepreciationDepletionAndAmortization	177278000	USD
	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	74502000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	251780000	USD
	us-gaap	Gross Profit GrossProfit	51500000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	1536000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-25600000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2242000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-27842000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-28118000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-36793000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-27842000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	79598000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-3949000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	42453000	USD
CY2020Q3	hl	Cost Of Goods Sold Before Depreciation Depletion And Amortization CostOfGoodsSoldBeforeDepreciationDepletionAndAmortization	103025000	USD
CY2020Q3	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	37990000	USD
CY2020Q3	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	141015000	USD
CY2020Q3	us-gaap	Gross Profit GrossProfit	58688000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	36515000	USD
CY2020Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	20461000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5181000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	15280000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	15142000	USD
CY2020Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	21430000	USD
	hl	Cost Of Goods Sold Before Depreciation Depletion And Amortization CostOfGoodsSoldBeforeDepreciationDepletionAndAmortization	280303000	USD
	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	112492000	USD
	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	392795000	USD
	us-gaap	Gross Profit GrossProfit	110188000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	38051000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-5139000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7423000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-12562000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-12976000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-15363000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-12562000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	120076000	USD
	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-4578000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	115892000	USD
CY2018	hl	Cost Of Goods Sold Before Depreciation Depletion And Amortization CostOfGoodsSoldBeforeDepreciationDepletionAndAmortization	352150000	USD
CY2018	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	131820000	USD
CY2018	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	483970000	USD
CY2018	us-gaap	Gross Profit GrossProfit	75031000	USD
CY2018	us-gaap	Operating Income Loss OperatingIncomeLoss	-35058000	USD
CY2018	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-29196000	USD
CY2018	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2445000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-26751000	USD
CY2018	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-27303000	USD
CY2018	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-44558000	USD
CY2018	us-gaap	Net Income Loss NetIncomeLoss	-26751000	USD
CY2018	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	138681000	USD
CY2018	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	8690000	USD
CY2018	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	94221000	USD
CY2019Q4	us-gaap	Inventory Net InventoryNet	30078000	USD
CY2019Q4	us-gaap	Assets Current AssetsCurrent	178838000	USD
CY2019Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2447450000	USD
CY2019Q4	us-gaap	Assets Assets	2660774000	USD
CY2019Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	157637000	USD
CY2019Q4	us-gaap	Liabilities Liabilities	964240000	USD
CY2019Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-349220000	USD
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	1696534000	USD
CY2019Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2660774000	USD
CY2019	hl	Cost Of Goods Sold Before Depreciation Depletion And Amortization CostOfGoodsSoldBeforeDepreciationDepletionAndAmortization	447985000	USD
CY2019	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	191451000	USD
CY2019	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	639436000	USD
CY2019	us-gaap	Gross Profit GrossProfit	33830000	USD
CY2019	us-gaap	Operating Income Loss OperatingIncomeLoss	-46678000	USD
CY2019	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-113227000	USD
CY2019	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-18318000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-94909000	USD
CY2019	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-95461000	USD
CY2019	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-89750000	USD
CY2019	us-gaap	Net Income Loss NetIncomeLoss	-94909000	USD
CY2019	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	196408000	USD
CY2019	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	9087000	USD
CY2019	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	120866000	USD
CY2020Q4	us-gaap	Inventory Net InventoryNet	57567000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	284312000	USD
CY2020Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2378074000	USD
CY2020Q4	us-gaap	Assets Assets	2700210000	USD
CY2020Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	5774000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	147210000	USD
CY2020Q4	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	156091000	USD
CY2020Q4	us-gaap	Liabilities Liabilities	986425000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-368074000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	1713785000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2700210000	USD
CY2020	hl	Cost Of Goods Sold Before Depreciation Depletion And Amortization CostOfGoodsSoldBeforeDepreciationDepletionAndAmortization	382663000	USD
CY2020	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	148110000	USD
CY2020	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	530773000	USD
CY2020	us-gaap	Gross Profit GrossProfit	161100000	USD
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	66978000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-1258000	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	8199000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-9457000	USD
CY2020	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-10009000	USD
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-5036000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-9457000	USD
CY2020	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	155006000	USD
CY2020	us-gaap	Increase Decrease In Income Taxes IncreaseDecreaseInIncomeTaxes	-3818000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	180793000	USD
	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	5	pure
CY2021Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	193560000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	199703000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	622395000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	502983000	USD
CY2021Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-8572000	USD
CY2020Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	36515000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	61599000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	38051000	USD
CY2021Q3	us-gaap	Assets Assets	2674417000	USD
CY2020Q4	us-gaap	Assets Assets	2700210000	USD
CY2021Q3	hl	Smelter And Refining Charges SmelterAndRefiningCharges	11669000	USD
CY2020Q3	hl	Smelter And Refining Charges SmelterAndRefiningCharges	18587000	USD
	hl	Smelter And Refining Charges SmelterAndRefiningCharges	38189000	USD
	hl	Smelter And Refining Charges SmelterAndRefiningCharges	52177000	USD
CY2021Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	193560000	USD
CY2020Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	199703000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	622395000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	502983000	USD
CY2021Q3	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	2176000	USD
CY2020Q3	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	705000	USD
	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	7489000	USD
	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-1690000	USD
CY2021Q3	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	1578000	USD
CY2020Q3	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	2286000	USD
	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	4690000	USD
	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	6005000	USD
CY2021Q3	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	3754000	USD
CY2020Q3	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2991000	USD
	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	12179000	USD
	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	7695000	USD
CY2021Q3	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-3213000	USD
CY2020Q3	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	2761000	USD
	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-8226000	USD
	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	1108000	USD
CY2021Q3	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-5074000	USD
CY2020Q3	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-571000	USD
	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-7877000	USD
	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1380000	USD
CY2021Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-8287000	USD
CY2020Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2190000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-16103000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-272000	USD
CY2021Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-4533000	USD
CY2020Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5181000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-3924000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7423000	USD
CY2021Q3	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	1100000	USD
	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	9700000	USD
CY2021Q3	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1455000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1334000	USD
	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	4365000	USD
	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	4002000	USD
CY2021Q3	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1248000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1404000	USD
	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	3744000	USD
	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	4212000	USD
CY2021Q3	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	2313000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	1872000	USD
	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	6939000	USD
	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	5616000	USD
CY2021Q3	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	99000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	29000	USD
	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	297000	USD
	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	87000	USD
CY2021Q3	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-1125000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-1163000	USD
	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-3375000	USD
	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-3489000	USD
CY2021Q3	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1614000	USD
CY2020Q3	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	2058000	USD
	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	4842000	USD
	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	6174000	USD
CY2021Q3	us-gaap	Net Income Loss NetIncomeLoss	-979000	USD
CY2020Q3	us-gaap	Net Income Loss NetIncomeLoss	15280000	USD
	us-gaap	Net Income Loss NetIncomeLoss	23220000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-12562000	USD
CY2021Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	138000	USD
CY2020Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	138000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	414000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	414000	USD
CY2021Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-1117000	USD
CY2020Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	15142000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	22806000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-12976000	USD
CY2021Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	536966000
CY2020Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	529838000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	535542000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	526098000
CY2021Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0
CY2020Q3	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	5950000
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	6227000
	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	0
CY2021Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	536966000
CY2020Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	535788000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	541769000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	526098000
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2496622
	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	1578293
	hl	Incremental Common Shares Attributable To Dilutive Effect Of Deferred Shares IncrementalCommonSharesAttributableToDilutiveEffectOfDeferredShares	2152578
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	2499956
CY2020Q3	us-gaap	Incremental Common Shares Attributable To Call Options And Warrants IncrementalCommonSharesAttributableToCallOptionsAndWarrants	1454246
CY2020Q3	hl	Incremental Common Shares Attributable To Dilutive Effect Of Deferred Shares IncrementalCommonSharesAttributableToDilutiveEffectOfDeferredShares	1996112
CY2021Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1500000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	4800000	USD
CY2020Q3	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	2800000	USD
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	5200000	USD
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	574251
	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	4500000	USD
CY2021Q3	hl	Shares Withheld For Tax Withholding Obligation Price Per Share SharesWithheldForTaxWithholdingObligationPricePerShare	7.88
	us-gaap	Shares Paid For Tax Withholding For Share Based Compensation SharesPaidForTaxWithholdingForShareBasedCompensation	1183773
	us-gaap	Adjustments Related To Tax Withholding For Share Based Compensation AdjustmentsRelatedToTaxWithholdingForShareBasedCompensation	2700000	USD
CY2020Q3	hl	Shares Withheld For Tax Withholding Obligation Price Per Share SharesWithheldForTaxWithholdingObligationPricePerShare	2.32
CY2021Q2	hl	Average Realized Silver Price Per Ounce AverageRealizedSilverPricePerOunce	20
CY2021Q3	hl	Average Realized Silver Price Per Ounce AverageRealizedSilverPricePerOunce	25
CY2021Q1	hl	Average Realized Silver Price Per Ounce AverageRealizedSilverPricePerOunce	25.66
CY2021Q2	hl	Average Realized Silver Price Per Ounce AverageRealizedSilverPricePerOunce	27.14
CY2021Q3	hl	Average Realized Silver Price Per Ounce AverageRealizedSilverPricePerOunce	23.97
CY2021Q2	us-gaap	Dividends Dividends	6000000.0	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due In Next Rolling Twelve Months FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths	6336000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Rolling Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths	3166000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due In Rolling Year Two FinanceLeaseLiabilityPaymentsDueInRollingYearTwo	4590000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Two LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo	2590000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due In Rolling Year Three FinanceLeaseLiabilityPaymentsDueInRollingYearThree	3313000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Three LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree	1037000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due In Rolling Year Four FinanceLeaseLiabilityPaymentsDueInRollingYearFour	855000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Four LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFour	533000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due In Rolling Year Five FinanceLeaseLiabilityPaymentsDueInRollingYearFive	0	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Five LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive	524000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due In Rolling After Year Five FinanceLeaseLiabilityPaymentsDueInRollingAfterYearFive	0	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due After Rolling Year Five LesseeOperatingLeaseLiabilityPaymentsDueAfterRollingYearFive	1953000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	15094000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	9803000	USD
CY2021Q3	hl	Maximum Allocation Of Forecasted Cad Demonimated Operating Costs MaximumAllocationOfForecastedCADDemonimatedOperatingCosts	0.75	pure
CY2021Q3	us-gaap	Aoci Loss Cash Flow Hedge Cumulative Gain Loss After Tax AociLossCashFlowHedgeCumulativeGainLossAfterTax	4800000	USD
	us-gaap	Foreign Currency Cash Flow Hedge Gain Loss Reclassified To Earnings Net ForeignCurrencyCashFlowHedgeGainLossReclassifiedToEarningsNet	3500000	USD
	us-gaap	Gain Loss On Components Excluded From Assessment Of Foreign Currency Cash Flow Hedge Effectiveness GainLossOnComponentsExcludedFromAssessmentOfForeignCurrencyCashFlowHedgeEffectiveness	0	USD
CY2021Q3	us-gaap	Contractual Obligation ContractualObligation	700000	USD
CY2021Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	15100000	USD
CY2021Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	9800000	USD

Files In Submission

Name	View Source	Status
0001437749-21-025360-index-headers.html	Edgar Link	pending
0001437749-21-025360-index.html	Edgar Link	pending
0001437749-21-025360.txt	Edgar Link	pending
0001437749-21-025360-xbrl.zip	Edgar Link	pending
ex_299999.htm	Edgar Link	pending
ex_300000.htm	Edgar Link	pending
ex_300001.htm	Edgar Link	pending
ex_300002.htm	Edgar Link	pending
ex_300003.htm	Edgar Link	pending
ex_300004.htm	Edgar Link	pending
ex_300005.htm	Edgar Link	pending
ex_300006.htm	Edgar Link	pending
ex_300007.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
graph01.jpg	Edgar Link	pending
hl-20210930.xsd	Edgar Link	pending
hl-20210930_cal.xml	Edgar Link	unprocessable
hl-20210930_def.xml	Edgar Link	unprocessable
hl-20210930_lab.xml	Edgar Link	unprocessable
hl-20210930_pre.xml	Edgar Link	unprocessable
hl20210930_10q.htm	Edgar Link	pending
hl20210930_10q_htm.xml	Edgar Link	completed
img01.jpg	Edgar Link	pending
img04.jpg	Edgar Link	pending
img05.jpg	Edgar Link	pending
img06.jpg	Edgar Link	pending
img07.jpg	Edgar Link	pending
map01.jpg	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
R11.htm	Edgar Link	pending
R12.htm	Edgar Link	pending
R13.htm	Edgar Link	pending
R14.htm	Edgar Link	pending
R15.htm	Edgar Link	pending
R16.htm	Edgar Link	pending
R17.htm	Edgar Link	pending
R18.htm	Edgar Link	pending
R19.htm	Edgar Link	pending
R2.htm	Edgar Link	pending
R20.htm	Edgar Link	pending
R21.htm	Edgar Link	pending
R22.htm	Edgar Link	pending
R23.htm	Edgar Link	pending
R24.htm	Edgar Link	pending
R25.htm	Edgar Link	pending
R26.htm	Edgar Link	pending
R27.htm	Edgar Link	pending
R28.htm	Edgar Link	pending
R29.htm	Edgar Link	pending
R3.htm	Edgar Link	pending
R30.htm	Edgar Link	pending
R31.htm	Edgar Link	pending
R32.htm	Edgar Link	pending
R33.htm	Edgar Link	pending
R34.htm	Edgar Link	pending
R35.htm	Edgar Link	pending
R36.htm	Edgar Link	pending
R37.htm	Edgar Link	pending
R38.htm	Edgar Link	pending
R39.htm	Edgar Link	pending
R4.htm	Edgar Link	pending
R40.htm	Edgar Link	pending
R41.htm	Edgar Link	pending
R42.htm	Edgar Link	pending
R43.htm	Edgar Link	pending
R44.htm	Edgar Link	pending
R45.htm	Edgar Link	pending
R46.htm	Edgar Link	pending
R47.htm	Edgar Link	pending
R48.htm	Edgar Link	pending
R49.htm	Edgar Link	pending
R5.htm	Edgar Link	pending
R50.htm	Edgar Link	pending
R51.htm	Edgar Link	pending
R52.htm	Edgar Link	pending
R6.htm	Edgar Link	pending
R7.htm	Edgar Link	pending
R8.htm	Edgar Link	pending
R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
sig.jpg	Edgar Link	pending

Create your account

Find Stocks Worth Researching

Deeply Understand Businesses

Value Businesses Intelligently

$HL
HECLA MINING CO/DE/ Stock $hl

2021 Q4 Form 10-Q Financial Statement

#000143774921025360 Filed on November 05, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HL HECLA MINING CO/DE/ Stock $hl

2021 Q4 Form 10-Q Financial Statement

#000143774921025360 Filed on November 05, 2021

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HL
HECLA MINING CO/DE/ Stock $hl