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v2.4.1.9

Consolidated Statements of Changes in Stockholders' Equity (Parentheticals) (USD $) | 12 Months Ended
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Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Common stock dividends declared, per common share (in Dollars per share) | $ 0.01 us-gaap_CommonStockDividendsPerShareCashPaid | $ 0.02 us-gaap_CommonStockDividendsPerShareCashPaid | $ 0.06 us-gaap_CommonStockDividendsPerShareCashPaid
Common stock issued for assets purchased, shares | 369,528,345 us-gaap_CommonStockSharesIssued |  |
Common Stock [Member] | Stock Issued to Directors [Member] |  |  |
Stock issued, shares | 150,000 us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation / hl_SharesIssuedDuringPeriodShareBasedCompensationAxis = hl_StockIssuedToDirectorsMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 122,250 us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation / hl_SharesIssuedDuringPeriodShareBasedCompensationAxis = hl_StockIssuedToDirectorsMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 78,000 us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensation / hl_SharesIssuedDuringPeriodShareBasedCompensationAxis = hl_StockIssuedToDirectorsMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Common Stock [Member] | Stock Issued for 401(k) Match [Member] |  |  |
Stock issued for 401(k) match, shares | 811,000 us-gaap_StockIssuedDuringPeriodSharesEmployeeBenefitPlan / hl_SharesIssuedDuringPeriodShareBasedCompensationAxis = hl_StockIssuedFor401KMatchMember / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |  |
Common Stock [Member] |  |  |
Common stock dividends declared, shares |  |  | 3,000 us-gaap_StockDividendsShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Restricted stock unit distributions, shares | 2,674,000 hl_RestrictedStockUnitDistributionsShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 494,000 hl_RestrictedStockUnitDistributionsShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 235,000 hl_RestrictedStockUnitDistributionsShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember
Common stock issued for assets purchased, shares |  | 56,998,000 us-gaap_CommonStockSharesIssued / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
Warrants exercised, shares | 22,308,000 hl_WarrantsExercisedShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 25,000 hl_WarrantsExercisedShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |
Repurchase of common shares, shares | 534,000 us-gaap_StockRepurchasedDuringPeriodShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember | 50,000 us-gaap_StockRepurchasedDuringPeriodShares / us-gaap_StatementEquityComponentsAxis = us-gaap_CommonStockMember |

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- Definition Aggregate dividends paid during the period for each share of common stock outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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