Long-term liabilities: Liabilities, Noncurrent [Abstract] Short-term debt and current maturities of long-term debt Carrying value as of the balance sheet date of the sum of short-term debt and current maturities of long-term debt, which are due within one year (or one business cycle if longer). Short-term debt and current maturities of long-term debt Total liabilities and stockholders' equity Liabilities and Stockholders' Equity Beginning Balance Stockholders' Equity Attributable to Parent Ending Balance Total stockholders' equity Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance Total accumulated other comprehensive loss Total accumulated other comprehensive loss Accumulated other comprehensive income (loss), net of tax: Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Retained earnings Retained Earnings (Accumulated Deficit), Total Retained Earnings (Accumulated Deficit), Beginning Balance Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit) Common Stock, Value, Issued Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common Stock, Value, Issued, Total Common stock (par value $0.01 per share, 300,000,000 shares authorized, 102,308,231 and 103,018,358 shares issued as of December 31, 2010 and 2009, respectively) Total long-term liabilities Liabilities, Noncurrent Other long-term liabilities Other Liabilities, Noncurrent Total long-term liabilities Pension and postretirement benefit plans Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent, Total Pension and Other Postretirement Defined Benefit Plans, Liabilities, Noncurrent Deferred income taxes Deferred Tax Liabilities, Noncurrent Capital lease obligations Capital Lease Obligations, Noncurrent Long-term debt Long-term Debt, Excluding Current Maturities, Total Long-term Debt, Excluding Current Maturities Total current liabilities Liabilities, Current, Total Liabilities, Current Accrued liabilities Accrued Liabilities, Current Accounts payable Accounts Payable, Current, Total Accounts Payable, Current Capital lease obligations Capital Lease Obligations, Current Current liabilities: Liabilities, Current [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Stockholders' Equity [Abstract] Total assets Assets Other long-term assets Other Assets, Noncurrent Property, plant and equipment, net Property, Plant and Equipment, Net, Total Property, Plant and Equipment, Net, Beginning Balance Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net Total current assets Assets, Current, Total Assets, Current Deferred income taxes Deferred Tax Assets, Net, Current, Beginning Balance Deferred Tax Assets, Net, Current, Ending Balance Deferred Tax Assets, Net, Current Prepaid expenses and other current assets Prepaid expenses and other current assets Sum of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer; and aggregate carrying amount, as of the balance sheet date, of current assets not separately disclosed in the balance sheet due to materiality considerations. Current assets are expected to be realized or consumed within one year (or the normal operating cycle, if longer). Alternative fuel mixture tax credits receivable The net change in the amount of alternative fuel mixture tax credits due the entity for the production and use of alternative fuels in the entity's trade or business. Alternative fuel mixture tax credits receivable Inventories Inventory, Net, Total Inventory, Net Accounts Receivable, Net, Current Accounts Receivable, Net, Current, Total Accounts receivable, net of allowance for doubtful accounts and customer deductions of $5,413 and $6,348 as of December 31, 2010 and 2009, respectively Cash and cash equivalents, end of year Cash and cash equivalents, beginning of year Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value, Total Cash and Cash Equivalents, at Carrying Value Current assets: Assets, Current [Abstract] ASSETS Assets [Abstract] Unfunded employee benefit obligations Accumulated Other Comprehensive Income (Loss), Defined Benefit Pension and Other Postretirement Plans, Net of Tax Accumulated Other Comprehensive Income (Loss), Defined Benefit Pension and Other Postretirement Plans, Net of Tax, Ending Balance Accumulated Other Comprehensive Income (Loss), Defined Benefit Pension and Other Postretirement Plans, Net of Tax, Beginning Balance Unfunded employee benefit obligations, net Dividends payable Dividends Payable, Current Net income per common share Earnings Per Share [Abstract] Diluted Weighted Average Number of Shares Outstanding, Diluted, Total Weighted Average Number of Shares Outstanding, Diluted Basic Weighted Average Number of Shares Outstanding, Basic, Total Weighted Average Number of Shares Outstanding, Basic Basic Earnings Per Share, Basic Diluted Earnings Per Share, Diluted Net Income (Loss) Attributable to Parent Net income Net income Income Tax Expense (Benefit) Benefit (provision) for income taxes Provision for income taxes Cost of sales Cost of Goods Sold Gross profit Gross Profit, Total Gross Profit Selling and administrative expenses Selling, General and Administrative Expense, Total Selling, General and Administrative Expense Income from operations Operating Income (Loss) Operating Income (Loss), Total Dividends declared per common share Common Stock, Dividends, Per Share, Declared Cash Flows from Financing Activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Increase (decrease) in liabilities - Increase (Decrease) in Operating Liabilities [Abstract] (Increase) decrease in assets - Increase (Decrease) in Operating Assets [Abstract] Changes in operating assets and liabilities (net of effects of acquisitions): Increase (Decrease) in Operating Capital [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Cash and Cash Equivalents, Period Increase (Decrease) Cash and Cash Equivalents, Period Increase (Decrease), Total Net increase (decrease) in cash and cash equivalents Depreciation, Depletion and Amortization, Total SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] EARNINGS PER SHARE Earnings Per Share [Text Block] Fair Value Measurements [Abstract] Fair Value Measurements [Abstract] Fair Value Measurements Abstract. SUBSEQUENT EVENTS Schedule of Subsequent Events [Text Block] Derivative Instruments and Hedging Activities [Abstract] EMPLOYEE BENEFIT PLANS AND OTHER POSTRETIREMENT BENEFITS Pension and Other Postretirement Benefits Disclosure [Text Block] Stock-Based Compensation [Abstract] Stock-Based Compensation [Abstract] STOCK-BASED COMPENSATION Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Common stock, par value Common Stock, Par or Stated Value Per Share Net cash used for financing activities Net Cash Provided by (Used in) Financing Activities Excess tax benefits from share-based awards Excess Tax Benefit from Share-based Compensation, Financing Activities Proceeds from exercise of stock options Proceeds from Stock Options Exercised Common stock dividends paid Payments of Dividends, Common Stock Cash Flows from Investing Activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Cash Flows from Operating Activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net cash used for investing activities Net Cash Provided by (Used in) Investing Activities Proceeds from disposals of property, plant and equipment Proceeds from Sale of Property, Plant, and Equipment Additions to other long term assets Payments to Acquire Other Productive Assets Additions to property, plant and equipment Payments to Acquire Property, Plant, and Equipment, Total Payments to Acquire Property, Plant, and Equipment Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Accrued liabilities Increase (Decrease) in Accrued Liabilities, Total Increase (Decrease) in Accrued Liabilities Accounts payable Increase (Decrease) in Accounts Payable, Total Increase (Decrease) in Accounts Payable Increase (Decrease) in Prepaid, Deferred Expense and Other Assets Prepaid expenses and other current assets Increase (Decrease) in Prepaid, Deferred Expense and Other Assets, Total Prepaid expenses and other current assets Increase (Decrease) in Inventories Inventories Increase (Decrease) in Inventories, Total Inventories Increase (Decrease) in Accounts Receivable Accounts receivable Accounts receivable Gain (Loss) on Sale of Property Plant Equipment Loss on disposals of property, plant and equipment Gain (Loss) on Sale of Property Plant Equipment, Total Loss on disposals of property, plant and equipment Deferred income tax provision Deferred Income Tax Expense (Benefit), Total Deferred Income Tax Expense (Benefit) Share-based compensation expense Share-based Compensation, Total Share-based Compensation Amortization of financing costs Amortization of Financing Costs Depreciation, depletion and amortization Depreciation, Depletion and Amortization Accrued interest Interest Payable, Current Selling and administrative expenses Cost of sales Cost of sales Additions to other long term assets Additions to property, plant and equipment Common stock dividends paid Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Common Stock, Shares Outstanding Consolidated Balance Sheets [Abstract] Goodwill Common Stock, Shares Authorized Common Stock, Shares, Issued Common stock, shares issued Consolidated Statements of Income [Abstract] Consolidated Statements of Cash Flows [Abstract] Other intangible assets, net Finite-Lived Intangible Assets, Net, Total Finite-Lived Intangible Assets, Net Stockholders' Equity Attributable to Parent [Abstract] Stockholders' equity: Additional paid in capital Additional Paid in Capital, Common Stock, Beginning Balance Additional Paid in Capital, Common Stock, Ending Balance Additional Paid in Capital, Common Stock Employee Benefit Plans and Other Postretirement Benefits Abstract Employee Benefit Plans and Other Postretirement Benefits [Abstract] FAIR VALUE MEASUREMENTS Fair Value, Measurement Inputs, Disclosure [Text Block] Common stock, shares authorized Weighted average common shares outstanding Weighted Average Number of Shares Outstanding, Diluted [Abstract] Dividends declared per common share Corporate overhead Corporate overhead The aggregate total of general and administrative expenses for corporate departments that are not associated with the manufacture, sale or creation of a product or product line. Corporate overhead Other Income Expense Net Other expense, net Other expense, net The total amount of other operating income and expense items, not previously categorized, that are associated with the entity's normal revenue producing operation. Interest expense, net Interest expense, net The cost of borrowed funds accounted for as interest that was charged against earnings during the period, net of interest earned on invested cash. Interest expense, net Allowance for Doubtful Accounts Receivable and Reserve for Customer Deductions, Current Allowance for doubtful accounts receivable and reserve for customer deductions, current A valuation allowance for trade and other receivables due to an entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible, and a reserve for estimated customer returns, allowances and earned discounts. Amortization of Deferred Hedge Gains Amortization of net gain on treasury lock Increase (Decrease) in Other Operating Assets and Liabilities Other, net Other, net Repayments Of Debt Payments on long-term debt Payments on long-term debt The cash outflow for the repayment of long-term debt, capital lease obligations and short-term debt. FINANCIAL INSTRUMENTS Fair Value, by Balance Sheet Grouping [Text Block] Excess tax benefits from share-based awards Document Fiscal Year Focus Document Fiscal Period Focus Other Intangible Assets [Abstract] OTHER INTANGIBLE ASSETS Intangible Assets Disclosure [Text Block] DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES Derivative Instruments and Hedging Activities Disclosure [Text Block] Income Taxes Receivable, Current Federal and state income taxes receivable Financial Instruments [Abstract] Financial Instruments. Document and Entity Information [Abstract] Document and Entity Information. Stock Repurchase Program [Abstract] STOCK REPURCHASE PROGRAM Schedule of Treasury Stock by Class [Text Block] Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Interest Rate Cash Flow Hedges Effect Net Of Tax Unrealized gain (loss) on treasury locks, net Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of interest rate cash flow hedges. Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Foreign Currency Cash Flow Hedges, Effect Net of Tax Unrealized loss on foreign exchange contracts Accumulated change, net of tax, in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of foreign currency cash flow hedges. Sales Revenue, Net Sales Revenue, Net, Total Net sales Payments for Repurchase of Common Stock Repurchases of common stock Repurchases of common stock Income Loss From Continuing Operations Before Income Taxes Income before taxes Revenue less expenses and interest from the entity's ongoing operations and before (1) income tax expense (benefit), (2) income (loss) from discontinued operations, (3) extraordinary items, (4) impact of changes in accounting principles, (5) minority interest, and (6) various other reconciling adjustments. Payments to Acquire Businesses, Net of Cash Acquired Acquisition of business, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired, Total Accrued Income Taxes, Current Federal and state income taxes payable Commitments and Contingencies Disclosure [Text Block] COMMITMENTS AND CONTINGENCIES Alternative Energy Tax Credits [Abstract] Alternative energy tax credits. Alternative Energy Tax Credits Text Block ALTERNATIVE ENERGY TAX CREDITS Alternative Energy Tax Credits Provides disclosures pertaining to the alternative fuel mixture and cellulosic biofuel producer tax credits. Subsequent Events [Abstract] Subsequent events. Alternative fuel mixture tax credits The total amount of tax credits earned for the production and use of alternative fuels in an entity's trade or business. Alternative fuel mixture tax credits Proceeds from Issuance of Long-term Debt Proceeds from Issuance of Long-term Debt, Total Proceeds from long-term debt Payments of Financing Costs Financing costs paid Payments of Financing Costs, Total Debt Disclosure [Text Block] DEBT Income Tax Disclosure [Text Block] INCOME TAXES Related Party Transactions Disclosure [Text Block] RELATED PARTY TRANSACTIONS Accrued Liabilities [Abstract] Consolidated Statements of Changes in Stockholders' Equity [Abstract] Shares, Issued Ending Balance, Shares Beginning Balance, Shares Stock Repurchased and Retired During Period, Value Common stock repurchases and retirements Common stock repurchases and retirements Stock Repurchased and Retired During Period, Shares Common stock repurchases and retirements, Shares Dividends, Common Stock, Cash Common stock dividends declared Common stock dividends declared Stock Issued During Period, Value, Stock Options Exercised Exercise of stock options Stock Issued During Period, Shares, Stock Options Exercised Exercise of stock options, Shares Statement [Table] Statement, Equity Components [Axis] Equity Component [Domain] Parent [Member] Common Stock Additional Paid in Capital Retained Earnings Accumulated Other Comprehensive Income (Loss) Statement [Line Items] Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures, Total Restricted stock grants and cancellations Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures, Total Restricted stock grants and cancellations, Shares Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Value Share-based compensation expense Service cost, interest cost and expected return on plan assets for October 1 - December 31, 2007, net of tax of $1.8 million Effect on Retained Earnings (Accumulated Deficit) Due to Change in Measurement Date, Net of Tax Adjustments of Retained Earnings and Accumulated Other Comprehensive Income (Loss) Due to Application of Measurement Date Provisions [Abstract] Effects of changing the pension and postretirement benefit plans measurement date pursuant to ASC 715-20-65: Comprehensive Income, Net of Tax, Attributable to Parent [Abstract] Comprehensive income (loss): Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax Other Comprehensive Income, Foreign Currency Transaction and Translation Adjustment, Net of Tax, Total Foreign currency translation adjustment Service cost, interest cost and expected return on plan assets, tax effect Service cost, interest cost and expected return on plan assets, tax effect The tax effect of net changes to retained earnings due to a change in the measurement date for a defined benefit pension and other postretirement plan in the initial application of the measurement provisions of FAS 158. Service cost, interest cost and expected return on plan assets, tax effect Amortization of prior service cost and net loss, tax effect Amortization of prior service cost and net loss, tax effect The tax effect of the adjustment increasing (decreasing) accumulated other comprehensive income due to a change in the measurement date for a defined benefit pension and other postretirement plan in the initial application of the measurement provisions of FAS 158. Amortization of prior service cost and net loss, tax effect Amortization of unfunded employee benefit obligations, tax effect Amortization of unfunded employee benefit obligations, tax effect The tax effect of the adjustment out of other comprehensive income for prior service costs and net loss recognized as a component of net periodic benefit cost during the period, after tax. Amortization of unfunded employee benefit obligations, tax effect Amortization of treasury lock, tax effect Amortization of treasury lock, tax effect The tax effect of the reclassification adjustment for accumulated gains and losses from interest rate derivative instrument designated and qualifying as the effective portion of cash flow hedges included in accumulated comprehensive income that was realized in net income during the period. Amortization of treasury lock, tax effect Unrealized losses on treasury locks, tax effect Unrealized losses on treasury locks, tax effect The tax effect of the change in accumulated unrealized gains and losses from interest rate derivative instruments designated and qualifying as the effective portion of cash flow hedges. Unrealized losses on treasury locks, tax effect Unrealized losses on foreign currency exchange contracts, tax effect Unrealized losses on foreign currency exchange contracts, tax effect The tax effect of the change in accumulated unrealized gains and losses from foreign currency derivative instruments designated and qualifying as the effective portion of cash flow hedges. Unrealized losses on foreign currency exchange contracts, tax effect Asset Retirement Obligation [Abstract] Asset Retirement Obligation Disclosure [Text Block] ASSET RETIREMENT OBLIGATIONS Income Tax [Abstract] Related Party Transaction [Abstract] Business Combination Disclosure [Text Block] ACQUISITIONS Quarterly Financial Data (Unaudited) [Abstract] Quarterly Financial Information [Text Block] QUARTERLY FINANCIAL DATA (UNAUDITED) Summary of Significant Accounting Policies [Abstract] Summary of significant accounting policies. Other Comprehensive Income, Reclassification Adjustment on Interest Rate Derivatives Included in Net Income, Net of Tax Amortization of treasury locks, net of tax of $0.5 million for 2010 Net of tax effect of the reclassification adjustment for accumulated gains and losses from interest rate derivative instrument designated and qualifying as the effective portion of cash flow hedges included in accumulated comprehensive income that was realized in net income during the period. Other Comprehensive Income, Defined Benefit Plan's Net Unamortized (Gain) Loss Arising During Period, Net of Tax Unfunded employee benefit obligations, net of tax of $5.7 million, $0.5 million and $17.0 million for 2010, 2009 and 2008, respectively Other Comprehensive Income, Settlement of Interest Rate Derivatives Qualifying as Hedges, Net of Tax Settlement of treasury lock Settlement amount from interest rate derivative instruments designated and qualifying as the effective portion of cash flow hedges, after taxes. Other Comprehensive Income, Unrealized Gain (Loss) on Interest Rate Derivatives Arising During Period, Net of Tax Unrealized losses on treasury locks, net of tax of $1.9 million for 2010 Change in accumulated unrealized gains and losses from interest rate derivative instruments designated and qualifying as the effective portion of cash flow hedges, net of tax effect. Payments for (Proceeds from) Hedge, Financing Activities Settlement of treasury lock Accrued Liabilities Disclosure Text Block ACCRUED LIABILITIES Description and amounts of accrued liabilities disclosure at the end of the reporting period. This element may be used for the entire disclosure as a single block of text. Debt [Abstract] Debt Nature of Operations [Text Block] NATURE OF BUSINESS Other Comprehensive Income Unrealized Gain Loss On Foreign Currency Derivatives Arising During Period Net Of Tax Unrealized losses on foreign currency exchange contracts, net of tax of $0.4 million for 2010 Change in accumulated unrealized gains and losses from foreign currency derivative instruments designated and qualifying as the effective portion of cash flow hedges, net of tax effect. Adjustments To Additional Paid In Capital Other Other Other This element represents other adjustments to additional paid in capital not separately disclosed int the statement of changes in stockholders' equity due to materiality considerations. Nature of Business [Abstract] Nature of Operations. Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Valuation and Qualifying Accounts Valuation and Qualifying Accounts [Abstract] Valuation and qualifying accounts. Cellulosic Biofuel Tax Reserve Carrying amount as of the balance sheet date of the amount recognized for uncertain tax positions related to the cellulosic biofuel tax credit. Other Comprehensive Income, Amortization of Defined Benefit Plan Net Prior Service Cost and Net Loss Due to Change In Measurement Date, Net of Tax Amortization of prior service cost and net loss for October 1 - December 31, 2007, net of tax of $0.3 million Adjustment increasing (decreasing) accumulated other comprehensive income due to a change in the measurement date for a defined benefit pension and other postretirement plan in the initial application of the measurement provisions of FAS 158. Other Comprehensive Income, Amortization of defined Benefit Plan Net Prior Service Cost and Net Loss Recognized in Net Periodic Pension Cost, Net of Tax Amortization of unfunded employee benefit obligations, net of tax of $2.3 million, $2.2 million and $1.3 million for 2010, 2009 and 2008, respectively The adjustment out of other comprehensive income for prior service costs and net loss recognized as a component of net periodic benefit cost during the period, after tax. Alternative Fuel Mixture Tax Credit Receivable Alternative fuel mixture tax credits receivables Alternative fuel mixture tax credits receivables The net change in the amount of alternative fuel mixture tax credits due the entity for the production and use of alternative fuels in the entity's trade or business.