$HL
HECLA MINING CO/DE/ Stock $hl

$hl Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-Q Financial Statement

#000143774919021986 Filed on November 07, 2019

Income Statement

Concept	2019 Q4	2019 Q3	2018 Q4
Revenue	$224.9M	$161.5M	$136.5M
YoY Change	64.76%	12.45%	-14.74%
Cost Of Revenue	$199.6M	$146.7M	$137.8M
YoY Change	44.85%	6.99%	21.09%
Gross Profit	$25.30M	$14.88M	-$1.300M
YoY Change	-2046.15%	126.28%	-102.81%
Gross Profit Margin	11.25%	9.21%	-0.95%
Selling, General & Admin	$9.000M	$8.000M	$8.700M
YoY Change	3.45%	-22.33%	31.82%
% of Gross Profit	35.57%	53.76%
Research & Development	$2.900M	$53.00K	$9.800M
YoY Change	-70.41%	-95.82%	16.67%
% of Gross Profit	11.46%	0.36%
Depreciation & Amortization	$61.50M	$52.20M	$32.10M
YoY Change	91.59%	13.73%	-8.81%
% of Gross Profit	243.08%	350.81%
Operating Expenses	$14.40M	$19.99M	$19.90M
YoY Change	-27.64%	-45.89%	13.07%
Operating Profit	$10.90M	-$5.113M	-$21.20M
YoY Change	-151.42%	-83.17%	-173.87%
Interest Expense	-$19.70M	$11.78M	-$4.500M
YoY Change	337.78%	16.08%	-66.42%
% of Operating Profit	-180.73%
Other Income/Expense, Net	-$1.000M	-$16.02M	-$600.0K
YoY Change	66.67%	-454.91%	-220.0%
Pretax Income	-$12.10M	-$21.13M	-$28.90M
YoY Change	-58.13%	-18.3%	-401.04%
Income Tax	-$4.100M	-$1.614M	-$5.200M
% Of Pretax Income
Net Earnings	-$8.000M	-$19.52M	-$23.70M
YoY Change	-66.24%	-15.82%	-18.28%
Net Earnings / Revenue	-3.56%	-12.08%	-17.36%
Basic Earnings Per Share		-$0.04
Diluted Earnings Per Share	-$15.91K	-$0.04	-$49.26K
COMMON SHARES
Basic Shares Outstanding	495.5M	490.0M
Diluted Shares Outstanding		490.0M

Balance Sheet

Concept	2019 Q4	2019 Q3	2018 Q4
SHORT-TERM ASSETS
Cash & Short-Term Investments	$62.50M	$33.00M	$27.39M
YoY Change	128.19%	-45.77%	-87.54%
Cash & Equivalents	$62.45M	$33.00M	$27.39M
Short-Term Investments			$0.00
Other Short-Term Assets	$12.04M	$10.40M	$11.18M
YoY Change	7.68%	-51.65%	2.32%
Inventory	$30.08M	$98.30M	$87.50M
Prepaid Expenses
Receivables	$12.00M	$6.200M	$4.200M
Other Receivables	$26.40M	$31.00M	$21.60M
Total Short-Term Assets	$178.8M	$178.9M	$164.2M
YoY Change	8.95%	-9.78%	-48.9%
LONG-TERM ASSETS
Property, Plant & Equipment	$2.447B	$2.456B	$2.520B
YoY Change	-2.88%	-1.28%	26.04%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$6.200M	$7.300M	$6.600M
YoY Change	-6.06%	1.39%	-13.16%
Other Assets	$7.336M	$9.353M	$10.20M
YoY Change	-28.04%	-36.37%	-29.73%
Total Long-Term Assets	$2.482B	$2.494B	$2.540B
YoY Change	-2.28%	-0.7%	25.49%
TOTAL ASSETS
Total Short-Term Assets	$178.8M	$178.9M	$164.2M
Total Long-Term Assets	$2.482B	$2.494B	$2.540B
Total Assets	$2.661B	$2.673B	$2.704B
YoY Change	-1.6%	-1.37%	15.3%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$57.70M	$57.90M	$77.90M
YoY Change	-25.93%	-12.01%	67.53%
Accrued Expenses	$42.90M	$51.50M	$39.40M
YoY Change	8.88%	0.59%	-9.84%
Deferred Revenue		$20.08M	$0.00
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$5.400M	$5.700M	$5.300M
YoY Change	1.89%	-6.56%
Total Short-Term Liabilities	$117.0M	$145.8M	$136.2M
YoY Change	-14.11%	10.11%	21.46%
LONG-TERM LIABILITIES
Long-Term Debt	$504.7M	$584.6M	$532.8M
YoY Change	-5.27%	9.47%	6.09%
Other Long-Term Liabilities	$6.856M	$8.113M	$9.890M
YoY Change	-30.68%	73.02%	-23.82%
Total Long-Term Liabilities	$511.6M	$592.7M	$542.7M
YoY Change	-5.73%	10.02%	5.33%
TOTAL LIABILITIES
Total Short-Term Liabilities	$117.0M	$145.8M	$136.2M
Total Long-Term Liabilities	$511.6M	$592.7M	$542.7M
Total Liabilities	$964.2M	$1.057B	$1.013B
YoY Change	-4.81%	6.92%	14.61%
SHAREHOLDERS EQUITY
Retained Earnings	-$349.2M	-$344.0M	-$248.3M
YoY Change	40.64%	54.05%	13.86%
Common Stock	$132.3M	$124.1M	$122.0M
YoY Change	8.48%	2.35%	20.84%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$22.97M	$22.98M	$20.74M
YoY Change	10.76%	10.8%	14.93%
Treasury Stock Shares	$6.287M	$6.287M	$5.227M
Shareholders Equity	$1.697B	$1.617B	$1.690B
YoY Change
Total Liabilities & Shareholders Equity	$2.661B	$2.673B	$2.704B
YoY Change	-1.6%	-1.37%	15.3%

Cashflow Statement

Concept	2019 Q4	2019 Q3	2018 Q4
OPERATING ACTIVITIES
Net Income	-$8.000M	-$19.52M	-$23.70M
YoY Change	-66.24%	-15.82%	-18.28%
Depreciation, Depletion And Amortization	$61.50M	$52.20M	$32.10M
YoY Change	91.59%	13.73%	-8.81%
Cash From Operating Activities	$57.30M	$54.90M	$19.00M
YoY Change	201.58%	94.68%	-54.55%
INVESTING ACTIVITIES
Capital Expenditures	-$24.10M	-$26.10M	-$53.60M
YoY Change	-55.04%	-34.75%	94.2%
Acquisitions
YoY Change
Other Investing Activities	$100.0K	$1.600M	$1.700M
YoY Change	-94.12%	-101.24%	13.33%
Cash From Investing Activities	-$24.00M	-$24.60M	-$51.90M
YoY Change	-53.76%	-85.48%	98.09%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$49.00M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-4.400M	-6.600M	800.0K
YoY Change	-650.0%	-82.63%	-133.33%
NET CHANGE
Cash From Operating Activities	57.30M	54.90M	19.00M
Cash From Investing Activities	-24.00M	-24.60M	-51.90M
Cash From Financing Activities	-4.400M	-6.600M	800.0K
Net Change In Cash	28.90M	23.70M	-32.10M
YoY Change	-190.03%	-113.23%	-343.18%
FREE CASH FLOW
Cash From Operating Activities	$57.30M	$54.90M	$19.00M
Capital Expenditures	-$24.10M	-$26.10M	-$53.60M
Free Cash Flow	$81.40M	$81.00M	$72.60M
YoY Change	12.12%	18.77%	4.61%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
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	hl	Forecasted Cad Denominated Operating Costs To Be Hedged Term ForecastedCADDenominatedOperatingCostsToBeHedgedTerm	P5Y
	hl	Forecasted Cad Denominated Operating Costs To Be Hedged Term ForecastedCADDenominatedOperatingCostsToBeHedgedTerm	P5Y
CY2019Q3	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	5000000
CY2019Q3	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.25
CY2018Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.25
CY2019Q3	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	157816
CY2018Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	157816
CY2019Q3	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	157816
CY2018Q4	us-gaap	Preferred Stock Shares Outstanding PreferredStockSharesOutstanding	157816
CY2019Q3	us-gaap	Preferred Stock Liquidation Preference Value PreferredStockLiquidationPreferenceValue	7891000	USD
CY2018Q4	us-gaap	Preferred Stock Liquidation Preference Value PreferredStockLiquidationPreferenceValue	7891000	USD
CY2019Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.25
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CY2019Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	750000000
CY2018Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	750000000
CY2019Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	496538038
CY2018Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	487830728
CY2019Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	6287271
CY2018Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	5226791
CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	32995000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	27389000	USD
CY2019Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	6222000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	4184000	USD
CY2019Q3	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	22902000	USD
CY2018Q4	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	14191000	USD
CY2019Q3	us-gaap	Other Receivables OtherReceivables	8056000	USD
CY2018Q4	us-gaap	Other Receivables OtherReceivables	7443000	USD
CY2019Q3	us-gaap	Inventory Finished Goods InventoryFinishedGoods	63164000	USD
CY2018Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	53172000	USD
CY2019Q3	us-gaap	Other Inventory Supplies OtherInventorySupplies	35087000	USD
CY2018Q4	us-gaap	Other Inventory Supplies OtherInventorySupplies	34361000	USD
CY2019Q3	us-gaap	Prepaid Taxes PrepaidTaxes	100000	USD
CY2018Q4	us-gaap	Prepaid Taxes PrepaidTaxes	12231000	USD
CY2019Q3	us-gaap	Other Assets Current OtherAssetsCurrent	10400000	USD
CY2018Q4	us-gaap	Other Assets Current OtherAssetsCurrent	11179000	USD
CY2019Q3	us-gaap	Assets Current AssetsCurrent	178926000	USD
CY2018Q4	us-gaap	Assets Current AssetsCurrent	164150000	USD
CY2019Q3	us-gaap	Long Term Investments LongTermInvestments	7349000	USD
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CY2019Q3	us-gaap	Restricted Cash And Cash Equivalents Noncurrent RestrictedCashAndCashEquivalentsNoncurrent	1025000	USD
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CY2019Q3	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	3701000	USD
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CY2019Q3	us-gaap	Assets Assets	2673178000	USD
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CY2018Q4	us-gaap	Accounts Payable And Accrued Liabilities Current AccountsPayableAndAccruedLiabilitiesCurrent	77861000	USD
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CY2018Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	30034000	USD
CY2019Q3	us-gaap	Taxes Payable Current TaxesPayableCurrent	2160000	USD
CY2018Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	7727000	USD
CY2019Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	5704000	USD
CY2018Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	5264000	USD
CY2019Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	5864000	USD
CY2018Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	0	USD
CY2019Q3	us-gaap	Accrued Reclamation Costs Current AccruedReclamationCostsCurrent	7457000	USD
CY2018Q4	us-gaap	Accrued Reclamation Costs Current AccruedReclamationCostsCurrent	3410000	USD
CY2019Q3	us-gaap	Interest Payable Current InterestPayableCurrent	15039000	USD
CY2018Q4	us-gaap	Interest Payable Current InterestPayableCurrent	5961000	USD
CY2019Q3	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	20084000	USD
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CY2018Q4	us-gaap	Liabilities Current LiabilitiesCurrent	136194000	USD
CY2019Q3	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	8569000	USD
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CY2018Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	0	USD
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CY2019Q3	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	584618000	USD
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CY2019Q3	us-gaap	Liabilities Liabilities	1056534000	USD
CY2018Q4	us-gaap	Liabilities Liabilities	1012981000	USD
CY2019Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2018Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2019Q3	us-gaap	Preferred Stock Value PreferredStockValue	39000	USD
CY2018Q4	us-gaap	Preferred Stock Value PreferredStockValue	39000	USD
CY2019Q3	us-gaap	Common Stock Value CommonStockValue	124133000	USD
CY2018Q4	us-gaap	Common Stock Value CommonStockValue	121956000	USD
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CY2019Q3	us-gaap	Treasury Stock Value TreasuryStockValue	22975000	USD
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	hl	Cost Of Goods Sold Before Depreciation Depletion And Amortization CostOfGoodsSoldBeforeDepreciationDepletionAndAmortization	311202000	USD
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	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	350253000	USD
CY2019Q3	us-gaap	Gross Profit GrossProfit	14880000	USD
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	us-gaap	Gross Profit GrossProfit	-1919000	USD
	us-gaap	Gross Profit GrossProfit	80364000	USD
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	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	27849000	USD
CY2019Q3	hl	Exploration Exploration	4808000	USD
CY2018Q3	hl	Exploration Exploration	12411000	USD
	hl	Exploration Exploration	13556000	USD
	hl	Exploration Exploration	27609000	USD
CY2019Q3	hl	Predevelopment Predevelopment	881000	USD
CY2018Q3	hl	Predevelopment Predevelopment	1195000	USD
	hl	Predevelopment Predevelopment	2535000	USD
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CY2019Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	53000	USD
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	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-4666000	USD
	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	3374000	USD
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	us-gaap	Environmental Remediation Expense EnvironmentalRemediationExpense	3529000	USD
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CY2019Q3	hl	Employee Labor Strike Related Costs EmployeeLaborStrikeRelatedCosts	3722000	USD
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	hl	Employee Labor Strike Related Costs EmployeeLaborStrikeRelatedCosts	8766000	USD
	hl	Employee Labor Strike Related Costs EmployeeLaborStrikeRelatedCosts	18337000	USD
CY2019Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	183000	USD
CY2018Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	6139000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	593000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	9656000	USD
CY2019Q3	us-gaap	Operating Expenses OperatingExpenses	19993000	USD
CY2018Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	4513000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-46876000	USD
	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	10317000	USD
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-21130000	USD
CY2018Q3	us-gaap	Operating Expenses OperatingExpenses	36952000	USD
	us-gaap	Operating Expenses OperatingExpenses	62795000	USD
	us-gaap	Operating Expenses OperatingExpenses	95035000	USD
CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-5113000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-30376000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-64714000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-14671000	USD
CY2019Q3	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	-4718000	USD
CY2018Q3	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	19460000	USD
	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	-2719000	USD
	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	40271000	USD
CY2019Q3	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	927000	USD
CY2018Q3	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-36000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	927000	USD
	us-gaap	Gain Loss On Sale Of Investments GainLossOnSaleOfInvestments	-36000	USD
CY2019Q3	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-126000	USD
CY2018Q3	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-2207000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-1159000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-2461000	USD
CY2019Q3	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	773000	USD
CY2018Q3	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-2212000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-6741000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	2856000	USD
CY2019Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-1096000	USD
CY2018Q3	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-346000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-3407000	USD
	us-gaap	Other Nonoperating Income Expense OtherNonoperatingIncomeExpense	-294000	USD
CY2019Q3	us-gaap	Interest Expense InterestExpense	11777000	USD
CY2018Q3	us-gaap	Interest Expense InterestExpense	10146000	USD
	us-gaap	Interest Expense InterestExpense	33777000	USD
	us-gaap	Interest Expense InterestExpense	30019000	USD
CY2019Q3	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-16017000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-25863000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-111590000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-4354000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1614000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2679000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-20009000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1484000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	-19516000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	-23184000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-91581000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-2870000	USD
CY2019Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	138000	USD
CY2018Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	138000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	414000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	414000	USD
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-19654000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-23322000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-91995000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-3284000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	-19516000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	-23184000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-91581000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-2870000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	-3288000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	3743000	USD
	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	4511000	USD
	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToParent	-3533000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	0	USD
CY2018Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	3000	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	0	USD
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Net Of Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodNetOfTax	13000	USD
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-22804000	USD
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-19438000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-87070000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-6390000	USD
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.04
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.05
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.19
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.01
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.04
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.05
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.19
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.01
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	489971000
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	452636000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	486298000
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	417532000
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	489971000
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	452636000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	486298000
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	417532000
CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.0025
CY2018Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.0025
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.0075
	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.0075
	us-gaap	Net Income Loss NetIncomeLoss	-91581000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-2870000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	143040000	USD
	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	108814000	USD
	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	927000	USD
	us-gaap	Gain On Sale Of Investments GainOnSaleOfInvestments	-0	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-1159000	USD
	us-gaap	Unrealized Gain Loss On Investments UnrealizedGainLossOnInvestments	-2461000	USD
	us-gaap	Inventory Write Down InventoryWriteDown	1399000	USD
	us-gaap	Inventory Write Down InventoryWriteDown	7232000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	-4666000	USD
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	3374000	USD
	us-gaap	Environmental Expense And Liabilities EnvironmentalExpenseAndLiabilities	5298000	USD
	us-gaap	Environmental Expense And Liabilities EnvironmentalExpenseAndLiabilities	3957000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	4758000	USD
	us-gaap	Share Based Compensation ShareBasedCompensation	4672000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	26616000	USD
	us-gaap	Increase Decrease In Deferred Income Taxes IncreaseDecreaseInDeferredIncomeTaxes	4637000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1919000	USD
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	1471000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	-5824000	USD
	us-gaap	Derivative Gain Loss On Derivative Net DerivativeGainLossOnDerivativeNet	15208000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	-6263000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Before Tax ForeignCurrencyTransactionGainLossBeforeTax	2032000	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	-0	USD
	us-gaap	Other Noncash Income Expense OtherNoncashIncomeExpense	37000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	10215000	USD
	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	4424000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	6501000	USD
	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	18954000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-14913000	USD
	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	5569000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	5616000	USD
	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	12308000	USD
	us-gaap	Increase Decrease In Accrued Salaries IncreaseDecreaseInAccruedSalaries	4506000	USD
	us-gaap	Increase Decrease In Accrued Salaries IncreaseDecreaseInAccruedSalaries	-4207000	USD
	us-gaap	Increase Decrease In Property And Other Taxes Payable IncreaseDecreaseInPropertyAndOtherTaxesPayable	-5733000	USD
	us-gaap	Increase Decrease In Property And Other Taxes Payable IncreaseDecreaseInPropertyAndOtherTaxesPayable	845000	USD
	hl	Increase Decrease In Accrued Reclamation And Closure Costs And Other Non Current Liabilities IncreaseDecreaseInAccruedReclamationAndClosureCostsAndOtherNonCurrentLiabilities	-5821000	USD
	hl	Increase Decrease In Accrued Reclamation And Closure Costs And Other Non Current Liabilities IncreaseDecreaseInAccruedReclamationAndClosureCostsAndOtherNonCurrentLiabilities	5238000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	63609000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	75210000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	97338000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	83285000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	-0	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	139326000	USD
	hl	Proceeds From Sale Of Investments ProceedsFromSaleOfInvestments	1760000	USD
	hl	Proceeds From Sale Of Investments ProceedsFromSaleOfInvestments	0	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	86000	USD
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	722000	USD
	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	0	USD
	us-gaap	Proceeds From Insurance Settlement Investing Activities ProceedsFromInsuranceSettlementInvestingActivities	4377000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	389000	USD
	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	31971000	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	0	USD
	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	64895000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-95881000	USD
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-184588000	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0	USD
	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	3085000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2239000	USD
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	2694000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	3655000	USD
	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	3193000	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	587000	USD
	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	2460000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	245000000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	78024000	USD
	us-gaap	Repayments Of Debt RepaymentsOfDebt	195000000	USD
	us-gaap	Repayments Of Debt RepaymentsOfDebt	82036000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	5484000	USD
	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	5992000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	37621000	USD
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-15680000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	257000	USD
	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-215000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	5606000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-125273000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	28414000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	187139000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	34020000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	61866000	USD
	hl	Finance Lease Liability Additions FinanceLeaseLiabilityAdditions	6506000	USD
	hl	Finance Lease Liability Additions FinanceLeaseLiabilityAdditions	7008000	USD
	hl	Noncash Activity Recognition Of Operating Lease Liabilites And Rightofuse Assets NoncashActivityRecognitionOfOperatingLeaseLiabilitesAndRightofuseAssets	22365000	USD
	hl	Noncash Activity Recognition Of Operating Lease Liabilites And Rightofuse Assets NoncashActivityRecognitionOfOperatingLeaseLiabilitesAndRightofuseAssets	0	USD
	hl	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Shares Issued Value NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationSharesIssuedValue	0	USD
	hl	Noncash Or Part Noncash Acquisition Noncash Financial Or Equity Instrument Consideration Shares Issued Value NoncashOrPartNoncashAcquisitionNoncashFinancialOrEquityInstrumentConsiderationSharesIssuedValue	252544000	USD
	us-gaap	Restricted Stock Expense RestrictedStockExpense	8274000	USD
	us-gaap	Restricted Stock Expense RestrictedStockExpense	4863000	USD
	hl	Marketable Equity Securities Received For Sale Of Mineral Interest MarketableEquitySecuritiesReceivedForSaleOfMineralInterest	2257000	USD
	hl	Marketable Equity Securities Received For Sale Of Mineral Interest MarketableEquitySecuritiesReceivedForSaleOfMineralInterest	0	USD
CY2019Q2	us-gaap	Stockholders Equity StockholdersEquity	1639228000	USD
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	-19516000	USD
CY2019Q3	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	1206000	USD
CY2019Q3	hl	Restricted Stock Unit Distributions RestrictedStockUnitDistributions	-595000	USD
CY2019Q3	us-gaap	Dividends Common Stock DividendsCommonStock	1225000	USD
CY2019Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	138000	USD
CY2019Q3	hl	Stock Issued During Period Value401k Match StockIssuedDuringPeriodValue401kMatch	972000	USD
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3288000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	1616644000	USD
CY2018Q2	us-gaap	Stockholders Equity StockholdersEquity	1478695000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	-23184000	USD
CY2018Q3	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	1638000	USD
CY2018Q3	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	3086000	USD
CY2018Q3	us-gaap	Dividends Common Stock DividendsCommonStock	1196000	USD
CY2018Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	138000	USD
CY2018Q3	hl	Stock Issued During Period Value Directors StockIssuedDuringPeriodValueDirectors	593000	USD
CY2018Q3	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	5500000	USD
CY2018Q3	hl	Stock Issued During Period Value401k Match StockIssuedDuringPeriodValue401kMatch	785000	USD
CY2018Q3	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	252544000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3746000	USD
CY2018Q3	us-gaap	Stockholders Equity StockholdersEquity	1722069000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1690963000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-91581000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	4303000	USD
	hl	Restricted Stock Unit Distributions RestrictedStockUnitDistributions	-636000	USD
	us-gaap	Dividends Common Stock DividendsCommonStock	3655000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	414000	USD
	hl	Stock Issued During Period Value401k Match StockIssuedDuringPeriodValue401kMatch	2752000	USD
	hl	Adjustments To Additional Paid In Capital Fair Value Of Warrant Issued AdjustmentsToAdditionalPaidInCapitalFairValueOfWarrantIssued	-325000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	6671000	USD
	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	3600000	USD
	hl	Stock Issued During Period Value Directors StockIssuedDuringPeriodValueDirectors	455000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	4511000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	1616644000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	1461277000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-2870000	USD
	us-gaap	Stock Issued During Period Value Restricted Stock Award Gross StockIssuedDuringPeriodValueRestrictedStockAwardGross	4043000	USD
	hl	Restricted Stock Unit Distributions RestrictedStockUnitDistributions	-1386000	USD
	hl	Stock Issued During Period Value Directors StockIssuedDuringPeriodValueDirectors	593000	USD
	us-gaap	Dividends Common Stock DividendsCommonStock	3196000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	414000	USD
	hl	Stock Issued During Period Value401k Match StockIssuedDuringPeriodValue401kMatch	2858000	USD
	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	3086000	USD
	us-gaap	Stock Issued During Period Value Employee Benefit Plan StockIssuedDuringPeriodValueEmployeeBenefitPlan	5500000	USD
	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	3555000	USD
	us-gaap	Stock Issued During Period Value Acquisitions StockIssuedDuringPeriodValueAcquisitions	252544000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3521000	USD
CY2018Q3	us-gaap	Stockholders Equity StockholdersEquity	1722069000	USD
CY2019Q3	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	7300000	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni EquitySecuritiesFvNi	6600000	USD
CY2019Q3	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	9600000	USD
CY2018Q4	us-gaap	Equity Securities Fv Ni Cost EquitySecuritiesFvNiCost	7700000	USD
	hl	Availableforsale Equity Securities Acquired During Period Cost Basis AvailableforsaleEquitySecuritiesAcquiredDuringPeriodCostBasis	2600000	USD
	hl	Availableforsale Equity Securities Acquired During Period Cost Basis AvailableforsaleEquitySecuritiesAcquiredDuringPeriodCostBasis	800000	USD
	hl	Availableforsale Equity Securities Sold During Period Cost Basis AvailableforsaleEquitySecuritiesSoldDuringPeriodCostBasis	900000	USD
	us-gaap	Proceeds From Sale Of Available For Sale Securities Equity ProceedsFromSaleOfAvailableForSaleSecuritiesEquity	1800000	USD
	us-gaap	Equity Securities Fv Ni Realized Gain Loss EquitySecuritiesFvNiRealizedGainLoss	900000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	1200000	USD
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	2500000	USD
CY2019Q3	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	315000	USD
CY2018Q3	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-0	USD
	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	317000	USD
	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	1000	USD
CY2019Q3	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	2467000	USD
CY2018Q3	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	80000	USD
	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	5260000	USD
	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	4250000	USD
CY2019Q3	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2782000	USD
CY2018Q3	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	80000	USD
	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	5577000	USD
	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	4251000	USD
CY2019Q3	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-2652000	USD
CY2018Q3	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-3778000	USD
	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-10585000	USD
	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-3778000	USD
CY2019Q3	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1744000	USD
CY2018Q3	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	1019000	USD
	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-15001000	USD
	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-1957000	USD
CY2019Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-4396000	USD
CY2018Q3	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-2759000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-25586000	USD
	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-5735000	USD
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1614000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2679000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-20009000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1484000	USD
CY2019Q3	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	139700000	USD
CY2019Q3	us-gaap	Contractual Obligation ContractualObligation	1300000	USD
CY2019Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	15200000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	17400000	USD
CY2019Q3	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	750000000
CY2019Q3	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.25
CY2019Q3	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	496538038
CY2019Q3	us-gaap	Treasury Stock Shares TreasuryStockShares	6287271
CY2019Q3	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	490250767
CY2019Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.04
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.19
CY2018Q3	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.05
	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.01
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CY2019Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	161532000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	143649000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	448321000	USD
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CY2019Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-5113000	USD
CY2018Q3	us-gaap	Operating Income Loss OperatingIncomeLoss	-30376000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-64714000	USD
	us-gaap	Operating Income Loss OperatingIncomeLoss	-14671000	USD
CY2019Q3	us-gaap	Assets Assets	2673178000	USD
CY2018Q4	us-gaap	Assets Assets	2703944000	USD
CY2019Q3	hl	Smelter And Refining Charges SmelterAndRefiningCharges	5351000	USD
CY2018Q3	hl	Smelter And Refining Charges SmelterAndRefiningCharges	5530000	USD
	hl	Smelter And Refining Charges SmelterAndRefiningCharges	21609000	USD
	hl	Smelter And Refining Charges SmelterAndRefiningCharges	20530000	USD
CY2019Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	161532000	USD
CY2018Q3	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	143649000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	448321000	USD
	us-gaap	Revenue From Contract With Customer Including Assessed Tax RevenueFromContractWithCustomerIncludingAssessedTax	430617000	USD
CY2019Q3	hl	Sales Revenue Goods Excluding Gain Loss On Forward Contracts SalesRevenueGoodsExcludingGainLossOnForwardContracts	160484000	USD
CY2018Q3	hl	Sales Revenue Goods Excluding Gain Loss On Forward Contracts SalesRevenueGoodsExcludingGainLossOnForwardContracts	138627000	USD
	hl	Sales Revenue Goods Excluding Gain Loss On Forward Contracts SalesRevenueGoodsExcludingGainLossOnForwardContracts	448458000	USD
	hl	Sales Revenue Goods Excluding Gain Loss On Forward Contracts SalesRevenueGoodsExcludingGainLossOnForwardContracts	422284000	USD
CY2019Q3	hl	Sales Revenue Goods Excluding Gain Loss On Forward Contracts SalesRevenueGoodsExcludingGainLossOnForwardContracts	160484000	USD
CY2018Q3	hl	Sales Revenue Goods Excluding Gain Loss On Forward Contracts SalesRevenueGoodsExcludingGainLossOnForwardContracts	138627000	USD
	hl	Sales Revenue Goods Excluding Gain Loss On Forward Contracts SalesRevenueGoodsExcludingGainLossOnForwardContracts	448458000	USD
	hl	Sales Revenue Goods Excluding Gain Loss On Forward Contracts SalesRevenueGoodsExcludingGainLossOnForwardContracts	422284000	USD
CY2019Q3	us-gaap	Derivative Gain On Derivative DerivativeGainOnDerivative	1100000	USD
CY2018Q3	us-gaap	Derivative Loss On Derivative DerivativeLossOnDerivative	100000	USD
	us-gaap	Derivative Gain On Derivative DerivativeGainOnDerivative	5000000.0	USD
	us-gaap	Derivative Gain On Derivative DerivativeGainOnDerivative	8300000	USD
CY2019Q3	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	6200000	USD
CY2018Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	4200000	USD
CY2018Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	0	USD
CY2019Q3	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1100000	USD
CY2018Q3	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	1252000	USD
CY2019Q3	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1620000	USD
CY2018Q3	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	1377000	USD
CY2019Q3	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	1496000	USD
CY2018Q3	us-gaap	Defined Benefit Plan Expected Return On Plan Assets DefinedBenefitPlanExpectedReturnOnPlanAssets	1634000	USD
CY2019Q3	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	15000	USD
CY2018Q3	us-gaap	Defined Benefit Plan Amortization Of Prior Service Cost Credit DefinedBenefitPlanAmortizationOfPriorServiceCostCredit	15000	USD
CY2019Q3	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-1097000	USD
CY2018Q3	us-gaap	Defined Benefit Plan Amortization Of Gains Losses DefinedBenefitPlanAmortizationOfGainsLosses	-931000	USD
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CY2018Q3	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1941000	USD
	us-gaap	Defined Benefit Plan Service Cost DefinedBenefitPlanServiceCost	3300000	USD
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	us-gaap	Defined Benefit Plan Interest Cost DefinedBenefitPlanInterestCost	4860000	USD
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CY2019Q3	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.0025
CY2019Q3	us-gaap	Dividends Common Stock DividendsCommonStock	1200000	USD
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CY2019Q3	hl	Longterm Debt Obligations Including Interest LongtermDebtObligationsIncludingInterest	644296000	USD
CY2019Q3	hl	Longterm Debt Obligations Interest LongtermDebtObligationsInterest	57592000	USD
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CY2019Q3	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	5700000	USD
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CY2018Q4	us-gaap	Finance Lease Liability FinanceLeaseLiability	13100000	USD
CY2018Q4	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	5300000	USD
CY2018Q4	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	7900000	USD
CY2019Q3	us-gaap	Finance Lease Right Of Use Asset FinanceLeaseRightOfUseAsset	21400000	USD
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CY2019Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	15200000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due Next Rolling Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextRollingTwelveMonths	6570000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Two LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearTwo	3629000	USD
CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Three LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearThree	2808000	USD
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CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due In Rolling Year Five LesseeOperatingLeaseLiabilityPaymentsDueInRollingYearFive	862000	USD
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CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	17393000	USD
CY2019Q3	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	1000000.0	USD
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CY2019Q3	us-gaap	Finance Lease Liability Payments Due In Next Rolling Twelve Months FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths	6283000	USD
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CY2019Q3	us-gaap	Finance Lease Liability Payments Due In Rolling Year Four FinanceLeaseLiabilityPaymentsDueInRollingYearFour	1017000	USD
CY2019Q3	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	15243000	USD
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CY2019Q3	us-gaap	Finance Lease Liability FinanceLeaseLiability	14275000	USD
CY2019Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	17300000	USD
CY2019Q3	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	5900000	USD
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CY2019Q3	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	17300000	USD
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CY2019Q3	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	17400000	USD
CY2019Q3	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P4Y8M12D
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CY2019Q3	us-gaap	Operating Lease Liability OperatingLeaseLiability	17330000	USD
CY2019Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	22400000	USD
CY2019Q3	hl	Maximum Allocation Of Forecasted Cad Demonimated Operating Costs MaximumAllocationOfForecastedCADDemonimatedOperatingCosts	0.75	pure
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	us-gaap	Foreign Currency Cash Flow Hedge Gain Loss Reclassified To Earnings Net ForeignCurrencyCashFlowHedgeGainLossReclassifiedToEarningsNet	-1200000	USD
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CY2019Q3	hl	Maximum Allocation Of Forecasted Cad Demonimated Operating Costs MaximumAllocationOfForecastedCADDemonimatedOperatingCosts	0.75	pure
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CY2019Q3	hl	Other Non Current Liabilities OtherNonCurrentLiabilities	58775000	USD
CY2019Q3	us-gaap	Stockholders Equity StockholdersEquity	1616644000	USD
CY2019Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2673178000	USD
CY2018Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	27389000	USD
CY2018Q4	hl	Other Current Assets OtherCurrentAssets	136761000	USD
CY2018Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2520004000	USD
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CY2019Q3	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	32995000	USD
CY2019Q3	hl	Other Current Assets OtherCurrentAssets	145931000	USD
CY2019Q3	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	2455511000	USD
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CY2019Q3	hl	Other Non Current Assets OtherNonCurrentAssets	38741000	USD
CY2019Q3	us-gaap	Assets Assets	2673178000	USD
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CY2019Q3	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	604653000	USD
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CY2018Q4	hl	Other Non Current Assets OtherNonCurrentAssets	19790000	USD
CY2018Q4	us-gaap	Assets Assets	2703944000	USD
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CY2018Q4	us-gaap	Long Term Debt And Capital Lease Obligations LongTermDebtAndCapitalLeaseObligations	540670000	USD
CY2018Q4	us-gaap	Mine Reclamation And Closing Liability Noncurrent MineReclamationAndClosingLiabilityNoncurrent	104979000	USD
CY2018Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	173537000	USD
CY2018Q4	hl	Other Non Current Liabilities OtherNonCurrentLiabilities	57601000	USD
CY2018Q4	us-gaap	Stockholders Equity StockholdersEquity	1690963000	USD
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CY2019Q3	hl	Revenue Expense From Contract With Customer Including Assessed Tax RevenueExpenseFromContractWithCustomerIncludingAssessedTax	161532000	USD
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CY2019Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	7978000	USD
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CY2019Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	53000	USD
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CY2019Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	138000	USD
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CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-22804000	USD
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	us-gaap	Dividends Preferred Stock DividendsPreferredStock	414000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-91995000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-91581000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	4511000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-87070000	USD
CY2018Q3	hl	Revenue Expense From Contract With Customer Including Assessed Tax RevenueExpenseFromContractWithCustomerIncludingAssessedTax	143649000	USD
CY2018Q3	hl	Cost Of Goods Sold Before Depreciation Depletion And Amortization CostOfGoodsSoldBeforeDepreciationDepletionAndAmortization	93609000	USD
CY2018Q3	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	43464000	USD
CY2018Q3	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	10327000	USD
CY2018Q3	hl	Exploration And Predevelopment Costs ExplorationAndPredevelopmentCosts	13606000	USD
CY2018Q3	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	1269000	USD
CY2018Q3	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	19460000	USD
CY2018Q3	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	-2212000	USD
CY2018Q3	hl	Employee Labor Strike Related Costs EmployeeLaborStrikeRelatedCosts	6519000	USD
CY2018Q3	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	6139000	USD
CY2018Q3	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
CY2018Q3	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-11827000	USD
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-25863000	USD
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2679000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	-23184000	USD
CY2018Q3	us-gaap	Dividends Preferred Stock DividendsPreferredStock	138000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-2825000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	257000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	5606000	USD
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	28414000	USD
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	34020000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	75210000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	83285000	USD
	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	139326000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-38023000	USD
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-23322000	USD
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	-23184000	USD
CY2018Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	3746000	USD
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-19438000	USD
	hl	Revenue Expense From Contract With Customer Including Assessed Tax RevenueExpenseFromContractWithCustomerIncludingAssessedTax	430617000	USD
	hl	Cost Of Goods Sold Before Depreciation Depletion And Amortization CostOfGoodsSoldBeforeDepreciationDepletionAndAmortization	246918000	USD
	us-gaap	Cost Depreciation Amortization And Depletion CostDepreciationAmortizationAndDepletion	103335000	USD
	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	27849000	USD
	hl	Exploration And Predevelopment Costs ExplorationAndPredevelopmentCosts	31224000	USD
	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	5042000	USD
	us-gaap	Gain Loss On Sale Of Derivatives GainLossOnSaleOfDerivatives	40271000	USD
	us-gaap	Foreign Currency Transaction Gain Loss Realized ForeignCurrencyTransactionGainLossRealized	2856000	USD
	hl	Employee Labor Strike Related Costs EmployeeLaborStrikeRelatedCosts	18337000	USD
	us-gaap	Business Combination Acquisition Related Costs BusinessCombinationAcquisitionRelatedCosts	9656000	USD
	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	0	USD
	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-35737000	USD
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	-4354000	USD
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-1484000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-2870000	USD
	us-gaap	Dividends Preferred Stock DividendsPreferredStock	414000	USD
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	-3284000	USD
	us-gaap	Net Income Loss NetIncomeLoss	-2870000	USD
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-3520000	USD
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-6390000	USD
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	63609000	USD
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	97338000	USD
	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	-1457000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	4070000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	245000000	USD
	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	200484000	USD
	us-gaap	Payments Of Dividends PaymentsOfDividends	3607000	USD
	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	78024000	USD
	us-gaap	Repayments Of Long Term Debt And Capital Securities RepaymentsOfLongTermDebtAndCapitalSecurities	88028000	USD
	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-2069000	USD
	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-215000	USD
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-125273000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	187139000	USD
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	61866000	USD

Files In Submission

Name	View Source	Status
0001437749-19-021986-index-headers.html	Edgar Link	pending
0001437749-19-021986-index.html	Edgar Link	pending
0001437749-19-021986.txt	Edgar Link	pending
0001437749-19-021986-xbrl.zip	Edgar Link	pending
ex_162633.htm	Edgar Link	pending
ex_162634.htm	Edgar Link	pending
ex_162635.htm	Edgar Link	pending
ex_162636.htm	Edgar Link	pending
ex_162637.htm	Edgar Link	pending
ex_162638.htm	Edgar Link	pending
ex_162639.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
hl-20190930.xsd	Edgar Link	pending
hl-20190930_cal.xml	Edgar Link	unprocessable
hl-20190930_def.xml	Edgar Link	unprocessable
hl-20190930_lab.xml	Edgar Link	unprocessable
hl-20190930_pre.xml	Edgar Link	unprocessable
hl20190930_10q.htm	Edgar Link	pending
hl20190930_10qimg004.gif	Edgar Link	pending
hl20190930_10qimg005.gif	Edgar Link	pending
hl20190930_10q_htm.xml	Edgar Link	completed
image01.jpg	Edgar Link	pending
image03.jpg	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
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report.css	Edgar Link	pending
Show.js	Edgar Link	pending
variancechart.jpg	Edgar Link	pending

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$HL
HECLA MINING CO/DE/ Stock $hl

2019 Q4 Form 10-Q Financial Statement

#000143774919021986 Filed on November 07, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HL HECLA MINING CO/DE/ Stock $hl

2019 Q4 Form 10-Q Financial Statement

#000143774919021986 Filed on November 07, 2019

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$HL
HECLA MINING CO/DE/ Stock $hl