2107100 - Disclosure - Accounts Receivable
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2407402 - Disclosure - Accounts Receivable Accounts Receivable, Net (Details)
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2407403 - Disclosure - Accounts Receivable Grants from Outside Parties (Details)
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2407404 - Disclosure - Accounts Receivable Insurance and Third-Party Claims (Details)
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2307301 - Disclosure - Accounts Receivable (Tables)
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2117100 - Disclosure - Accumulated Other Comprehensive Income/(Loss)
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2417402 - Disclosure - Accumulated Other Comprehensive Income/(Loss) AOCI Attributable to G&W (Details)
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2417403 - Disclosure - Accumulated Other Comprehensive Income/(Loss) OCI Attributable to Noncontrolling Interest (Details)
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2102100 - Disclosure - Changes in Operations
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2402403 - Disclosure - Changes in Operations Australia - Arrium (Details)
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2302301 - Disclosure - Changes in Operations (Tables)
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2402404 - Disclosure - Changes in Operations United Kingdom - ERS (Details)
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2402405 - Disclosure - Changes in Operations United Kingdom - Pentalver (Details)
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2402402 - Disclosure - Changes in Operations United States - HOG (Details)
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2416402 - Disclosure - Commitments and Contingencies (Details)
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2116100 - Disclosure - Commitments and Contingencies (Notes)
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1001000 - Statement - Consolidated Balance Sheets
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2110100 - Disclosure - Derivative Financial Instruments
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2410404 - Disclosure - Derivative Financial Instruments Cross Currency Swap (Details)
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2410406 - Disclosure - Derivative Financial Instruments Derivative Instruments Designated as Cash Flow Hedges OCI Activity (Details)
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2410407 - Disclosure - Derivative Financial Instruments Derivative Instruments Not Designated as Hedges Amount Recognized in Earnings (Details)
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2410405 - Disclosure - Derivative Financial Instruments Fair Value of the Company's Derivative Instruments (Details)
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2410403 - Disclosure - Derivative Financial Instruments Foreign Currency Exchange Rate Risk (Details)
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2410402 - Disclosure - Derivative Financial Instruments Outstanding Interest Rate Swap Agreements (Details)
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2310301 - Disclosure - Derivative Financial Instruments (Tables)
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0001000 - Document - Document and Entity Information Document
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2103100 - Disclosure - Earnings per Share
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2403403 - Disclosure - Earnings per Share Antidilutive Shares (Details)
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2403402 - Disclosure - Earnings per Share Basic and Diluted EPS (Details)
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2403404 - Disclosure - Earnings per Share Share Repurchase (Details)
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2303301 - Disclosure - Earnings per Share (Tables)
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2113100 - Disclosure - Fair Value of Financial Instruments
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2413402 - Disclosure - Fair Value of Financial Instruments Financial Instruments Carried at Fair Value-Level 2 (Details)
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2413403 - Disclosure - Fair Value of Financial Instruments Financial instruments Carried at Fair Value-Level 3 (Details)
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2413404 - Disclosure - Fair Value of Financial Instruments Financial Instruments Carried at Historical Costs (Details)
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2313301 - Disclosure - Fair Value of Financial Instruments (Tables)
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2115100 - Disclosure - Income Taxes
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2415401 - Disclosure - Income Taxes (Details)
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2408405 - Disclosure - Long-Term Debt Amortization of Term Loans (Details)
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2408408 - Disclosure - Long-Term Debt Covenants and Guarantees (Details)
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2408402 - Disclosure - Long-Term Debt Credit Agreement and Amendment (Details)
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2408403 - Disclosure - Long-Term Debt Debt Issuance Costs (Details)
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2108100 - Disclosure - Long-Term Debt (Notes)
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2408407 - Disclosure - Long-Term Debt Outstanding Revolving Loans (Details)
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2408404 - Disclosure - Long-Term Debt Outstanding Term Loans (Details)
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2308301 - Disclosure - Long-Term Debt (Tables)
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2408406 - Disclosure - Long-Term Debt Unused Borrowing Capacity (Details)
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2101100 - Disclosure - Principles of Consolidation and Basis of Presentation
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2401404 - Disclosure - Principles of Consolidation and Basis of Presentation Accounting Changes and Error Corrections (Details)
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2401403 - Disclosure - Principles of Consolidation and Basis of Presentation New Accounting Pronouncements and Changes in Accounting Principles (Details)
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2201201 - Disclosure - Principles of Consolidation and Basis of Presentation (Policies)
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2301302 - Disclosure - Principles of Consolidation and Basis of Presentation (Tables)
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2121100 - Disclosure - Recently Issued Accounting Standards
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2421401 - Disclosure - Recently Issued Accounting Standards Recently Issued Accounting Standards (Details)
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2404401 - Disclosure - Revenue (Details)
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2104100 - Disclosure - Revenue (Notes)
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2120100 - Disclosure - Segment Information
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2420405 - Disclosure - Segment Information Balance Sheet Data (Details)
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2420404 - Disclosure - Segment Information Disaggregation of Revenue (Details)
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2420402 - Disclosure - Segment Information Foreign Currency Exchange Rates (Details)
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2420403 - Disclosure - Segment Information Segments (Details)
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2320301 - Disclosure - Segment Information (Tables)
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2119100 - Disclosure - Significant Non-Cash Investing Activities
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2419401 - Disclosure - Significant Non-Cash Investing Activities (Details)
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2118100 - Disclosure - Stockholders' Equity
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2418402 - Disclosure - Stockholders' Equity (Details)
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2318301 - Disclosure - Stockholders' Equity (Tables)
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2409402 - Disclosure - U.K. Operations Optimization (Details)
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2109100 - Disclosure - U.K. Operations Optimization (Notes)
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2409403 - Disclosure - U.K. Operations Optimization Restructuring Reserve Roll Forward (Details)
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2309301 - Disclosure - U.K. Operations Optimization (Tables)
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2114100 - Disclosure - U.K. Pension Plan
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2414402 - Disclosure - U.K. Pension Plan Net Periodic Service Cost (Details)
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2314301 - Disclosure - U.K. Pension Plan (Tables)
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