000 - Document - Document And Entity Information link:calculationLink link:definitionLink link:presentationLink 001 - Statement - Consolidated Balance Sheets link:calculationLink link:definitionLink link:presentationLink 002 - Statement - Consolidated Balance Sheets (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 003 - Statement - Consolidated Statements of Operations and Comprehensive (Loss) Income link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Consolidated Statements of Cash Flows link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Consolidated Statements of Changes in Stockholders' Equity link:calculationLink link:definitionLink link:presentationLink 006 - Statement - Consolidated Statements of Changes in Stockholders' Equity (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 007 - Disclosure - Note 1 - Summary of Significant Accounting Policies link:calculationLink link:definitionLink link:presentationLink 008 - Disclosure - Note 2 - Revision of Previously Issued Financial Statements for Immaterial Misstatements link:calculationLink link:definitionLink link:presentationLink 009 - Disclosure - Note 3 - Investments link:calculationLink link:definitionLink link:presentationLink 010 - Disclosure - Note 4 - Properties, Plants, Equipment and Mineral Interests, and Lease Commitments link:calculationLink link:definitionLink link:presentationLink 011 - Disclosure - Note 5 - Environmental and Reclamation Activities link:calculationLink link:definitionLink link:presentationLink 012 - Disclosure - Note 6 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 013 - Disclosure - Note 7 - Debt, Credit Facilities and Capital Leases link:calculationLink link:definitionLink link:presentationLink 014 - Disclosure - Note 8 - Commitments, Contingencies, and Obligations link:calculationLink link:definitionLink link:presentationLink 015 - Disclosure - Note 9 - Employee Benefit Plans link:calculationLink link:definitionLink link:presentationLink 016 - Disclosure - Note 10 - Stockholders' Equity link:calculationLink link:definitionLink link:presentationLink 017 - Disclosure - Note 11 - Derivative Instruments link:calculationLink link:definitionLink link:presentationLink 018 - Disclosure - Note 12 - Business Segments, Sales of Products and Significant Customers link:calculationLink link:definitionLink link:presentationLink 019 - Disclosure - Note 13 - Fair Value Measurement link:calculationLink link:definitionLink link:presentationLink 020 - Disclosure - Note 14 - Income (Loss) Per Common Share link:calculationLink link:definitionLink link:presentationLink 021 - Disclosure - Note 15 - Accumulated Other Comprehensive Loss link:calculationLink link:definitionLink link:presentationLink 022 - Disclosure - Note 16 - Acquisitions link:calculationLink link:definitionLink link:presentationLink 023 - Disclosure - Note 17 - Guarantor Subsidiaries link:calculationLink link:definitionLink link:presentationLink 024 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 025 - Disclosure - Note 2 - Revision of Previously Issued Financial Statements for Immaterial Misstatements (Tables) link:calculationLink link:definitionLink link:presentationLink 026 - Disclosure - Note 3 - Investments (Tables) link:calculationLink link:definitionLink link:presentationLink 027 - Disclosure - Note 4 - Properties, Plants, Equipment and Mineral Interests, and Lease Commitments (Tables) link:calculationLink link:definitionLink link:presentationLink 028 - Disclosure - Note 5 - Environmental and Reclamation Activities (Tables) link:calculationLink link:definitionLink link:presentationLink 029 - Disclosure - Note 6 - Income Taxes (Tables) link:calculationLink link:definitionLink link:presentationLink 030 - Disclosure - Note 7 - Debt, Credit Facilities and Capital Leases (Tables) link:calculationLink link:definitionLink link:presentationLink 031 - Disclosure - Note 9 - Employee Benefit Plans (Tables) link:calculationLink link:definitionLink link:presentationLink 032 - Disclosure - Note 10 - Stockholders' Equity (Tables) link:calculationLink link:definitionLink link:presentationLink 033 - Disclosure - Note 11 - Derivative Instruments (Tables) link:calculationLink link:definitionLink link:presentationLink 034 - Disclosure - Note 12 - Business Segments, Sales of Products and Significant Customers (Tables) link:calculationLink link:definitionLink link:presentationLink 035 - Disclosure - Note 13 - Fair Value Measurement (Tables) link:calculationLink link:definitionLink link:presentationLink 036 - Disclosure - Note 14 - Income (Loss) Per Common Share (Tables) link:calculationLink link:definitionLink link:presentationLink 037 - Disclosure - Note 15 - Accumulated Other Comprehensive Loss (Tables) link:calculationLink link:definitionLink link:presentationLink 038 - Disclosure - Note 16 - Acquisitions (Tables) link:calculationLink link:definitionLink link:presentationLink 039 - Disclosure - Note 17 - Guarantor Subsidiaries (Tables) link:calculationLink link:definitionLink link:presentationLink 040 - Disclosure - Note 1 - Summary of Significant Accounting Policies (Details Textual) link:calculationLink link:definitionLink link:presentationLink 041 - Disclosure - Note 2 - Revision of Previously Issued Financial Statements for Immaterial Misstatements (Details Textual) link:calculationLink link:definitionLink link:presentationLink 042 - Disclosure - Note 2 - Revision of Previously Issued Financial Statements for Immaterial Misstatements - Impact of Error Corrections and Prior Period Adjustments (Details) link:calculationLink link:definitionLink link:presentationLink 043 - Disclosure - Note 3 - Investments (Details Textual) link:calculationLink link:definitionLink link:presentationLink 044 - Disclosure - Note 3 - Investments - Current Investments (Details) link:calculationLink link:definitionLink link:presentationLink 045 - Disclosure - Note 4 - Properties, Plants, Equipment and Mineral Interests, and Lease Commitments (Details Textual) link:calculationLink link:definitionLink link:presentationLink 046 - Disclosure - Note 4 - Properties, Plants, Equipment and Mineral Interests, and Lease Commitments - Major Components of Property, Plants, Equipment and Mineral Interests (Details) link:calculationLink link:definitionLink link:presentationLink 047 - Disclosure - Note 4 - Properties, Plants, Equipment and Mineral Interests, and Lease Commitments - Future Obligations Under Non-cancelable Operating Leases (Details) link:calculationLink link:definitionLink link:presentationLink 048 - Disclosure - Note 5 - Environmental and Reclamation Activities (Details Textual) link:calculationLink link:definitionLink link:presentationLink 049 - Disclosure - Note 5 - Environmental and Reclamation Activities - Liabilities Accrued for Reclamation and Closure Costs (Details) link:calculationLink link:definitionLink link:presentationLink 050 - Disclosure - Note 5 - Environmental and Reclamation Activities - Accrued Reclamation and Closure Cost Liability Activity (Details) link:calculationLink link:definitionLink link:presentationLink 051 - Disclosure - Note 5 - Environmental and Reclamation Activities - Reconciliation of Asset Retirement Obligations (Details) link:calculationLink link:definitionLink link:presentationLink 052 - Disclosure - Note 6 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 053 - Disclosure - Note 6 - Income Taxes - Major Components of Income Tax Provision (Benefit) (Details) link:calculationLink link:definitionLink link:presentationLink 054 - Disclosure - Note 6 - Income Taxes - Components of Income (Loss) from Operations Before Income Taxes (Details) link:calculationLink link:definitionLink link:presentationLink 055 - Disclosure - Note 6 - Income Taxes - Reconciliation of Statutory Federal Income Tax Rate to Annual Tax Provision (Details) link:calculationLink link:definitionLink link:presentationLink 056 - Disclosure - Note 6 - Income Taxes - Components of the Net Deferred Tax Asset (Details) link:calculationLink link:definitionLink link:presentationLink 057 - Disclosure - Note 6 - Income Taxes - Changes in the Valuation Allowance (Details) link:calculationLink link:definitionLink link:presentationLink 058 - Disclosure - Note 7 - Debt, Credit Facilities and Capital Leases (Details Textual) link:calculationLink link:definitionLink link:presentationLink 059 - Disclosure - Note 7 - Debt, Credit Facilities and Capital Leases - Annual Future Obligations Related to the Senior Notes (Details) link:calculationLink link:definitionLink link:presentationLink 060 - Disclosure - Note 7 - Debt, Credit Facilities and Capital Leases - Credit Facility (Details) link:calculationLink link:definitionLink link:presentationLink 061 - Disclosure - Note 7 - Debt, Credit Facilities and Capital Leases - Annual Maturities of Capital Lease Commitments, Including Interest (Details) link:calculationLink link:definitionLink link:presentationLink 062 - Disclosure - Note 8 - Commitments, Contingencies, and Obligations (Details Textual) link:calculationLink link:definitionLink link:presentationLink 063 - Disclosure - Note 9 - Employee Benefit Plans (Details Textual) link:calculationLink link:definitionLink link:presentationLink 064 - Disclosure - Note 9 - Employee Benefit Plans - Change in Benefit Obligation (Details) link:calculationLink link:definitionLink link:presentationLink 065 - Disclosure - Note 9 - Employee Benefit Plans - Amounts Recognized in the Consolidated Balance Sheets (Details) link:calculationLink link:definitionLink link:presentationLink 066 - Disclosure - Note 9 - Employee Benefit Plans - Benefit Obligation and Prepaid Benefit Costs Assumptions (Details) link:calculationLink link:definitionLink link:presentationLink 067 - Disclosure - Note 9 - Employee Benefit Plans - Net Periodic Pension Cost (Details) link:calculationLink link:definitionLink link:presentationLink 068 - Disclosure - Note 9 - Employee Benefit Plans - Employee Allocations of Investments and Measurement Dates by Asset Category (Details) link:calculationLink link:definitionLink link:presentationLink 069 - Disclosure - Note 9 - Employee Benefit Plans - Investment Policy Allocation (Details) link:calculationLink link:definitionLink link:presentationLink 070 - Disclosure - Note 9 - Employee Benefit Plans - Fair Value by Asset Category (Details) link:calculationLink link:definitionLink link:presentationLink 071 - Disclosure - Note 9 - Employee Benefit Plans - Future Benefit Payments (Details) link:calculationLink link:definitionLink link:presentationLink 072 - Disclosure - Note 9 - Employee Benefit Plans - Accumulated Benefit Obligations (Details) link:calculationLink link:definitionLink link:presentationLink 073 - Disclosure - Note 9 - Employee Benefit Plans - Pension and Benefit Plan Amounts Included in Accumulated Other Comprehensive Income (Details) link:calculationLink link:definitionLink link:presentationLink 074 - Disclosure - Note 9 - Employee Benefit Plans - Components of Net Periodic Benefit Cost to be Recognized Over Next Fiscal Year (Details) link:calculationLink link:definitionLink link:presentationLink 075 - Disclosure - Note 10 - Stockholders' Equity (Details Textual) link:calculationLink link:definitionLink link:presentationLink 076 - Disclosure - Note 10 - Stockholders' Equity - Common Stock Dividend Policy (Details) link:calculationLink link:definitionLink link:presentationLink 077 - Disclosure - Note 10 - Stockholders' Equity - Common Stock Dividends Declared by Our Board of Directors (Details) link:calculationLink link:definitionLink link:presentationLink 078 - Disclosure - Note 10 - Stockholders' Equity - Unvested Restricted Stock (Details) link:calculationLink link:definitionLink link:presentationLink 079 - Disclosure - Note 10 - Stockholders' Equity - Unvested Units Expected to Vest (Details) link:calculationLink link:definitionLink link:presentationLink 080 - Disclosure - Note 11 - Derivative Instruments (Details Textual) link:calculationLink link:definitionLink link:presentationLink 081 - Disclosure - Note 11 - Derivative Instruments - Summary of Forward Sales Contracts (Details) link:calculationLink link:definitionLink link:presentationLink 082 - Disclosure - Note 12 - Business Segments, Sales of Products and Significant Customers (Details Textual) link:calculationLink link:definitionLink link:presentationLink 083 - Disclosure - Note 12 - Business Segments and Sales of Products - Information About Reportable Segments (Details) link:calculationLink link:definitionLink link:presentationLink 084 - Disclosure - Note 12 - Business Segments, Sales of Products and Significant Customers - Long-lived Assets by Geographic Area (Details) link:calculationLink link:definitionLink link:presentationLink 085 - Disclosure - Note 12 - Business Segments, Sales of Products and Significant Customers - Percentage of Sales by Segments (Details) link:calculationLink link:definitionLink link:presentationLink 086 - Disclosure - Note 12 - Business Segments, Sales of Products and Significant Customers - Sales of Products (Details) link:calculationLink link:definitionLink link:presentationLink 087 - Disclosure - Note 12 - Business Segments, Sales of Products and Significant Customers - Sales by Geographic Area (Details) link:calculationLink link:definitionLink link:presentationLink 088 - Disclosure - Note 12 - Business Segments, Sales of Products and Significant Customers - Sales from Continuing Operations to Significant Metals Customers As a Percentage of Total Sales (Details) link:calculationLink link:definitionLink link:presentationLink 089 - Disclosure - Note 13 - Fair Value Measurement (Details Textual) link:calculationLink link:definitionLink link:presentationLink 090 - Disclosure - Note 13 - Fair Value Measurement - Assets and Liabilities Accounted for at Fair Value (Details) link:calculationLink link:definitionLink link:presentationLink 091 - Disclosure - Note 14 - Income (Loss) Per Common Share (Details Textual) link:calculationLink link:definitionLink link:presentationLink 092 - Disclosure - Note 14 - Income (Loss) Per Common Share - Net Income (Loss) Per Share (Details) link:calculationLink link:definitionLink link:presentationLink 093 - Disclosure - Note 15 - Accumulated Other Comprehensive Loss (Details Textual) link:calculationLink link:definitionLink link:presentationLink 094 - Disclosure - Note 15 - Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Details) link:calculationLink link:definitionLink link:presentationLink 095 - Disclosure - Note 16 - Acquisitions (Details Textual) link:calculationLink link:definitionLink link:presentationLink 096 - Disclosure - Note 16 - Acquisitions - Preliminary Purchase Price Allocation (Details) link:calculationLink link:definitionLink link:presentationLink 097 - Disclosure - Note 16 - Acquisitions - Preliminary Purchase Price Allocation (Details) (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 098 - Disclosure - Note 16 - Acquisitions - Pro Forma Information (Details) link:calculationLink link:definitionLink link:presentationLink 099 - Disclosure - Note 17 - Guarantor Subsidiaries (Details Textual) link:calculationLink link:definitionLink link:presentationLink 100 - Disclosure - Note 17 - Guarantor Subsidiaries - Unaudited Interim Condensed Consolidating Balance Sheets (Details) link:calculationLink link:definitionLink link:presentationLink 101 - Disclosure - Note 17 - Guarantor Subsidiaries - Unaudited Interim Condensed Consolidating Statements of Operations (Details) link:calculationLink link:definitionLink link:presentationLink 102 - Disclosure - Note 17 - Guarantor Subsidiaries - Unaudited Interim Condensed Consolidating Statements of Cash Flows (Details) link:calculationLink link:definitionLink link:presentationLink