06031 - Disclosure - Fair Value of Financial Instruments (Details Textual)
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0111 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) (Unaudited) (Alternative)
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06041 - Disclosure - Equity Loss of Joint Ventures (Details Textual)
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0608 - Disclosure - Other Income (Expense), net (Details)
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0508 - Disclosure - Other Income (Expense), net (Tables)
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0208 - Disclosure - Other Income (Expense), net
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0601 - Disclosure - Basis of Financial Statements (Details Textual)
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0512 - Disclosure - Pension and Other Postretirement Benefits (Tables)
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0511 - Disclosure - Stock-Based Compensation (Tables)
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06121 - Disclosure - Pension and Other Postretirement Benefits (Details Textual)
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0211 - Disclosure - Stock-Based Compensation
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06114 - Disclosure - Stock-Based Compensation (Details Textual)
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06113 - Disclosure - Stock-Based Compensation (Details 3)
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06112 - Disclosure - Stock-Based Compensation (Details 2)
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06111 - Disclosure - Stock-Based Compensation (Details 1)
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0611 - Disclosure - Stock-Based Compensation (Details)
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0607 - Disclosure - Shareholders' Equity (Details)
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0507 - Disclosure - Shareholders Equity (Tables)
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0502 - Disclosure - Derivative Instruments (Tables)
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0503 - Disclosure - Fair Value of Financial Instruments (Tables)
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0212 - Disclosure - Pension and Other Postretirement Benefits
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0206 - Disclosure - Environmental Reserve
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0203 - Disclosure - Fair Value of Financial Instruments
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0202 - Disclosure - Derivative Instruments
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0201 - Disclosure - Basis of Financial Statements
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0110 - Statement - Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited)
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0510 - Disclosure - Earnings Per Share (EPS) (Tables)
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06101 - Disclosure - Earnings Per Share (EPS) (Details Textual)
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0610 - Disclosure - Earnings Per Share (EPS) (Details)
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0612 - Disclosure - Pension and Other Postretirement Benefits (Details)
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0606 - Disclosure - Environmental Reserve (Details Textual)
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0605 - Disclosure - Credit Facilities and Guarantees (Details Textual)
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0504 - Disclosure - Equity Loss of Joint Ventures (Tables)
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0604 - Disclosure - Equity Loss of Joint Ventures (Details)
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06023 - Disclosure - Derivative instruments (Details Textual)
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0603 - Disclosure - Fair Value of Financial Instruments (Details)
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06022 - Disclosure - Derivative Instruments (Details 2)
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06021 - Disclosure - Derivative Instruments (Details 1)
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0602 - Disclosure - Derivative Instruments (Details)
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0205 - Disclosure - Credit Facilities and Guarantees
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00 - Document - Document and Entity Information
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0120 - Statement - Condensed Consolidated Balance Sheets (Unaudited)
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0121 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)
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0130 - Statement - Condensed Consolidated Statements of Cash Flows (Unaudited)
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0204 - Disclosure - Equity Loss of Joint Ventures
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0207 - Disclosure - Shareholders' Equity
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0209 - Disclosure - Income Taxes
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0210 - Disclosure - Earnings Per Share (EPS)
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