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These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.falsefalseDefined Benefit Plan Disclosure [Line Items]3false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsetruefalsefalseperiodstartlabel1truefalsefalse108929000108929falsetruefalsefalsefalse2truefalsefalse9667400096674falsetruefalsefalsefalse3truefalsefalse9318700093187falsetruefalsetruefalse4truefalsefalse8252300082523falsetruefalsetruefalse5truefalsefalse5845600058456falsetruefalsetruefalse6truefalsefalse48820004882[1]falsetruefalsetruefalse7truefalsefalse54170005417[1]falsetruefalsetruefalse8truefalsefalse54170005417[1]falsetruefalsetruefalse9truefalsefalse38590003859falsetruefalsetruefalse10truefalsefalse48820004882falsetruefalsetruefalse11truefalsefalse54170005417falsetruefalsetruefalse12truefalsefalse1193400011934falsetruefalsetruefalse13truefalsefalse1106700011067falsetruefalsetruefalse14truefalsefalse1006900010069falsetruefalsetruefalse15truefalsefalse59130005913[2]falsetruefalsetruefalse16truefalsefalse50020005002[2]falsetruefalsetruefalse17truefalsefalse50020005002[2]falsetruefalsetruefalse18truefalsefalse46070004607falsetruefalsetruefalse19truefalsefalse59130005913falsetruefalsetruefalse20truefalsefalse50020005002falsetruefalsetruefalse21truefalsefalse1041900010419falsetruefalsetruefalse22truefalsefalse84660008466falsetruefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph b Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(iv)(b)(i) Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 49 falsefalseFair value of defined benefit plan assets, beginning balance4false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsPeriodIncreaseDecreaseus-gaaptruenadurationNo definition available.falsefalsefalsefalsefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalsefalsefalse2falsefalsefalse00falsefalsefalsefalsefalse3falsefalsefalse00falsefalsefalsetruefalse4falsefalsefalse00falsefalsefalsetruefalse5falsefalsefalse00falsefalsefalsetruefalse6falsefalsefalse00falsefalsefalsetruefalse7falsefalsefalse00falsefalsefalsetruefalse8truefalsefalse-535000-535falsefalsefalsetruefalse9truefalsefalse15580001558falsefalsefalsetruefalse10falsefalsefalse00falsefalsefalsetruefalse11falsefalsefalse00falsefalsefalsetruefalse12falsefalsefalse00falsefalsefalsetruefalse13falsefalsefalse00falsefalsefalsetruefalse14falsefalsefalse00falsefalsefalsetruefalse15falsefalsefalse00falsefalsefalsetruefalse16falsefalsefalse00falsefalsefalsetruefalse17truefalsefalse911000911falsefalsefalsetruefalse18truefalsefalse395000395falsefalsefalsetruefalse19falsefalsefalse00falsefalsefalsetruefalse20falsefalsefalse00falsefalsefalsetruefalse21truefalsefalse376000376falsefalsefalsetruefalse22truefalsefalse19530001953falsefalsefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryThe amount of increase or decrease in the fair value of plan assets during the reporting period.No authoritative reference available.falsefalseNet purchases (sales) and appreciation (depreciation) of defined benefit plan assets5false0us-gaap_DefinedBenefitPlanFairValueOfPlanAssetsus-gaaptruedebitinstantNo definition available.falsefalsefalsefalsefalsefalsefalsefalsetruefalseperiodendlabel1truefalsefalse108929000108929falsetruefalsefalsefalse2truefalsefalse9667400096674falsetruefalsefalsefalse3truefalsefalse9318700093187falsetruefalsetruefalse4truefalsefalse8252300082523falsetruefalsetruefalse5truefalsefalse5845600058456falsetruefalsetruefalse6truefalsefalse48820004882[1]falsetruefalsetruefalse7truefalsefalse54170005417[1]falsetruefalsetruefalse8truefalsefalse48820004882[1]falsetruefalsetruefalse9truefalsefalse54170005417[1]falsetruefalsetruefalse10truefalsefalse48820004882falsetruefalsetruefalse11truefalsefalse54170005417falsetruefalsetruefalse12truefalsefalse1193400011934falsetruefalsetruefalse13truefalsefalse1106700011067falsetruefalsetruefalse14truefalsefalse1006900010069falsetruefalsetruefalse15truefalsefalse59130005913[2]falsetruefalsetruefalse16truefalsefalse50020005002[2]falsetruefalsetruefalse17truefalsefalse59130005913[2]falsetruefalsetruefalse18truefalsefalse50020005002[2]falsetruefalsetruefalse19truefalsefalse59130005913falsetruefalsetruefalse20truefalsefalse50020005002falsetruefalsetruefalse21truefalsefalse1079500010795falsetruefalsetruefalse22truefalsefalse1041900010419falsetruefalsetruefalseMonetaryxbrli:monetaryItemTypemonetaryAssets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those nonbenefit obligations may be considered as reductions of plan assets.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph b Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 5 -Subparagraph d(iv)(b)(i) Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 87 -Paragraph 49 falsefalseFair value of defined benefit plan assets, ending balance1Hedge fund invests in both short and long term U.S. common stocks. Management of the hedge funds has the ability to shift investments from value to growth strategies, from large to small capitalization stocks and from a net long position to a net short position.2Amount represents bank and insurance guaranteed investment contracts.224Retirement Plans (Details 11) (USD $)ThousandsUnKnownUnKnownUnKnownfalsetrue