XML 76 R72.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Note 9 - Shareholders' Equity (Details) - Common Stock Dividends Declared by Our Board of Directors (USD $) In Millions, except Per Share data, unless otherwise specified | Dec. 31, 2014
--- | ---
Declared November 8, 2011 [Member] |
Dividends Payable [Line Items] |
Silver-price-linked component per share | $ 0.02 hl_SilverPriceLinkedComponentPerShare / us-gaap_DividendsAxis = hl_DeclaredNovember82011Member
Total dividend per share | $ 0.02 us-gaap_DividendsPayableAmountPerShare / us-gaap_DividendsAxis = hl_DeclaredNovember82011Member
Total dividend amount (in Dollars) | $ 5.6 us-gaap_DividendsPayableCurrentAndNoncurrent / us-gaap_DividendsAxis = hl_DeclaredNovember82011Member
Declared February 17, 2012 [Member] |
Dividends Payable [Line Items] |
Silver-price-linked component per share | $ 0.01 hl_SilverPriceLinkedComponentPerShare / us-gaap_DividendsAxis = hl_DeclaredFebruary172012Member
Minimum annual component per share | $ 0.0025 hl_MinimumAnnualComponentPerShare / us-gaap_DividendsAxis = hl_DeclaredFebruary172012Member
Total dividend per share | $ 0.0125 us-gaap_DividendsPayableAmountPerShare / us-gaap_DividendsAxis = hl_DeclaredFebruary172012Member
Total dividend amount (in Dollars) | 3.6 us-gaap_DividendsPayableCurrentAndNoncurrent / us-gaap_DividendsAxis = hl_DeclaredFebruary172012Member
Declared May 8, 2012 [Member] |
Dividends Payable [Line Items] |
Silver-price-linked component per share | $ 0.02 hl_SilverPriceLinkedComponentPerShare / us-gaap_DividendsAxis = hl_DeclaredMay82012Member
Minimum annual component per share | $ 0.0025 hl_MinimumAnnualComponentPerShare / us-gaap_DividendsAxis = hl_DeclaredMay82012Member
Total dividend per share | $ 0.0225 us-gaap_DividendsPayableAmountPerShare / us-gaap_DividendsAxis = hl_DeclaredMay82012Member
Total dividend amount (in Dollars) | 6.4 us-gaap_DividendsPayableCurrentAndNoncurrent / us-gaap_DividendsAxis = hl_DeclaredMay82012Member
Declared August 7, 2012 [Member] |
Dividends Payable [Line Items] |
Minimum annual component per share | $ 0.0025 hl_MinimumAnnualComponentPerShare / us-gaap_DividendsAxis = hl_DeclaredAugust72012Member
Total dividend per share | $ 0.0025 us-gaap_DividendsPayableAmountPerShare / us-gaap_DividendsAxis = hl_DeclaredAugust72012Member
Total dividend amount (in Dollars) | 0.7 us-gaap_DividendsPayableCurrentAndNoncurrent / us-gaap_DividendsAxis = hl_DeclaredAugust72012Member
Declared November 2, 2012 [Member] |
Dividends Payable [Line Items] |
Silver-price-linked component per share | $ 0.02 hl_SilverPriceLinkedComponentPerShare / us-gaap_DividendsAxis = hl_DeclaredNovember22012Member
Minimum annual component per share | $ 0.0025 hl_MinimumAnnualComponentPerShare / us-gaap_DividendsAxis = hl_DeclaredNovember22012Member
Total dividend per share | $ 0.0225 us-gaap_DividendsPayableAmountPerShare / us-gaap_DividendsAxis = hl_DeclaredNovember22012Member
Total dividend amount (in Dollars) | 6.4 us-gaap_DividendsPayableCurrentAndNoncurrent / us-gaap_DividendsAxis = hl_DeclaredNovember22012Member
Declared February 25, 2013 [Member] |
Dividends Payable [Line Items] |
Minimum annual component per share | $ 0.0025 hl_MinimumAnnualComponentPerShare / us-gaap_DividendsAxis = hl_DeclaredFebruary252013Member
Special dividend per share | $ 0.01 hl_SpecialDividendPerShare / us-gaap_DividendsAxis = hl_DeclaredFebruary252013Member
Total dividend per share | $ 0.0125 us-gaap_DividendsPayableAmountPerShare / us-gaap_DividendsAxis = hl_DeclaredFebruary252013Member
Total dividend amount (in Dollars) | 3.6 us-gaap_DividendsPayableCurrentAndNoncurrent / us-gaap_DividendsAxis = hl_DeclaredFebruary252013Member
Declared May 10, 2013 [Member] |
Dividends Payable [Line Items] |
Minimum annual component per share | $ 0.0025 hl_MinimumAnnualComponentPerShare / us-gaap_DividendsAxis = hl_DeclaredMay102013Member
Total dividend per share | $ 0.0025 us-gaap_DividendsPayableAmountPerShare / us-gaap_DividendsAxis = hl_DeclaredMay102013Member
Total dividend amount (in Dollars) | 0.7 us-gaap_DividendsPayableCurrentAndNoncurrent / us-gaap_DividendsAxis = hl_DeclaredMay102013Member
Declared August 8, 2013 [Member] |
Dividends Payable [Line Items] |
Minimum annual component per share | $ 0.0025 hl_MinimumAnnualComponentPerShare / us-gaap_DividendsAxis = hl_DeclaredAugust82013Member
Total dividend per share | $ 0.0025 us-gaap_DividendsPayableAmountPerShare / us-gaap_DividendsAxis = hl_DeclaredAugust82013Member
Total dividend amount (in Dollars) | 0.9 us-gaap_DividendsPayableCurrentAndNoncurrent / us-gaap_DividendsAxis = hl_DeclaredAugust82013Member
Declared November 5, 2013 [Member] |
Dividends Payable [Line Items] |
Minimum annual component per share | $ 0.0025 hl_MinimumAnnualComponentPerShare / us-gaap_DividendsAxis = hl_DeclaredNovember52013Member
Total dividend per share | $ 0.0025 us-gaap_DividendsPayableAmountPerShare / us-gaap_DividendsAxis = hl_DeclaredNovember52013Member
Total dividend amount (in Dollars) | 0.9 us-gaap_DividendsPayableCurrentAndNoncurrent / us-gaap_DividendsAxis = hl_DeclaredNovember52013Member
Declared February 21, 2014 [Member] |
Dividends Payable [Line Items] |
Minimum annual component per share | $ 0.0025 hl_MinimumAnnualComponentPerShare / us-gaap_DividendsAxis = hl_DeclaredFebruary212014Member
Total dividend per share | $ 0.0025 us-gaap_DividendsPayableAmountPerShare / us-gaap_DividendsAxis = hl_DeclaredFebruary212014Member
Total dividend amount (in Dollars) | 0.9 us-gaap_DividendsPayableCurrentAndNoncurrent / us-gaap_DividendsAxis = hl_DeclaredFebruary212014Member
Declared May 5, 2014 [Member] |
Dividends Payable [Line Items] |
Minimum annual component per share | $ 0.0025 hl_MinimumAnnualComponentPerShare / us-gaap_DividendsAxis = hl_DeclaredMay52014Member
Total dividend per share | $ 0.0025 us-gaap_DividendsPayableAmountPerShare / us-gaap_DividendsAxis = hl_DeclaredMay52014Member
Total dividend amount (in Dollars) | 0.9 us-gaap_DividendsPayableCurrentAndNoncurrent / us-gaap_DividendsAxis = hl_DeclaredMay52014Member
Declared July 31, 2014 [Member] |
Dividends Payable [Line Items] |
Minimum annual component per share | $ 0.0025 hl_MinimumAnnualComponentPerShare / us-gaap_DividendsAxis = hl_DeclaredJuly312014Member
Total dividend per share | $ 0.0025 us-gaap_DividendsPayableAmountPerShare / us-gaap_DividendsAxis = hl_DeclaredJuly312014Member
Total dividend amount (in Dollars) | 0.9 us-gaap_DividendsPayableCurrentAndNoncurrent / us-gaap_DividendsAxis = hl_DeclaredJuly312014Member
Declared November 5, 2014 [Member] |
Dividends Payable [Line Items] |
Minimum annual component per share | $ 0.0025 hl_MinimumAnnualComponentPerShare / us-gaap_DividendsAxis = hl_DeclaredNovember52014Member
Total dividend per share | $ 0.0025 us-gaap_DividendsPayableAmountPerShare / us-gaap_DividendsAxis = hl_DeclaredNovember52014Member
Total dividend amount (in Dollars) | 0.9 us-gaap_DividendsPayableCurrentAndNoncurrent / us-gaap_DividendsAxis = hl_DeclaredNovember52014Member
Declared February 17, 2015 [Member] |
Dividends Payable [Line Items] |
Minimum annual component per share | $ 0.0025 hl_MinimumAnnualComponentPerShare / us-gaap_DividendsAxis = hl_DeclaredFebruary172015Member
Total dividend per share | $ 0.0025 us-gaap_DividendsPayableAmountPerShare / us-gaap_DividendsAxis = hl_DeclaredFebruary172015Member
Total dividend amount (in Dollars) | $ 0.9 us-gaap_DividendsPayableCurrentAndNoncurrent / us-gaap_DividendsAxis = hl_DeclaredFebruary172015Member

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | hl_MinimumAnnualComponentPerShare
Namespace Prefix: | hl_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | hl_SilverPriceLinkedComponentPerShare
Namespace Prefix: | hl_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition No authoritative reference available. + References No definition available. + Details
Name: | hl_SpecialDividendPerShare
Namespace Prefix: | hl_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The per share amount of a dividend declared, but not paid, as of the financial reporting date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
Name: | us-gaap_DividendsPayableAmountPerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph a -Article 7 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 15 -Subparagraph 5 -Article 9 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.15(5)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_DividendsPayableCurrentAndNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_DividendsPayableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DividendsAxis=hl_DeclaredAugust72012Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=hl_DeclaredAugust82013Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=hl_DeclaredFebruary172012Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=hl_DeclaredFebruary172015Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=hl_DeclaredFebruary212014Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=hl_DeclaredFebruary252013Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=hl_DeclaredJuly312014Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=hl_DeclaredMay102013Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=hl_DeclaredMay52014Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=hl_DeclaredMay82012Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=hl_DeclaredNovember22012Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=hl_DeclaredNovember52013Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=hl_DeclaredNovember52014Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DividendsAxis=hl_DeclaredNovember82011Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |