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Employee Benefit Plan - Narrative (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items] |  |  |
Current Fiscal Year End Date | --12-31 |  |
Other Comprehensive Income (loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (loss) Recognized in Net Periodic Benefit Cost, After Tax | $ (14,901)arw_OtherComprehensiveIncomeLossReclassificationPensionAndOtherPostretirementBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostAfterTax | $ 7,615 arw_OtherComprehensiveIncomeLossReclassificationPensionAndOtherPostretirementBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostAfterTax | $ (9,120)arw_OtherComprehensiveIncomeLossReclassificationPensionAndOtherPostretirementBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostAfterTax
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), After Tax | 19 arw_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetPriorServiceCostCreditAfterTax | 19 arw_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetPriorServiceCostCreditAfterTax | 19 arw_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetPriorServiceCostCreditAfterTax
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Gain (Loss), After Tax | (1,994)arw_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossAfterTax | (2,854)arw_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossAfterTax | (2,311)arw_DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossAfterTax
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), After Tax | (12)arw_PensionAndOtherPostretirementBenefitPlansAccumulatedOtherComprehensiveIncomeLossNetPriorServiceCostCreditAfterTax | 7 arw_PensionAndOtherPostretirementBenefitPlansAccumulatedOtherComprehensiveIncomeLossNetPriorServiceCostCreditAfterTax |
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Actuarial Cost (Credit), After Tax | (49,491)arw_PensionAndOtherPostretirementBenefitPlansAccumulatedOtherComprehensiveIncomeLossNetActuarialCostCreditAfterTax | (36,584)arw_PensionAndOtherPostretirementBenefitPlansAccumulatedOtherComprehensiveIncomeLossNetActuarialCostCreditAfterTax |
Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP |  |  | 5,966 us-gaap_EmployeeStockOwnershipPlanESOPCashContributionsToESOP
Defined Contribution Plan, Cost Recognized | 12,584 us-gaap_DefinedContributionPlanCostRecognized | 14,102 us-gaap_DefinedContributionPlanCostRecognized | 14,014 us-gaap_DefinedContributionPlanCostRecognized
Defined Contribution Plan, Employer Discretionary Contribution Amount | 7,139 us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount | 7,403 us-gaap_DefinedContributionPlanEmployerDiscretionaryContributionAmount |
Current Arrow SERP [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Number of Participants | 9 arw_NumberOfParticipants / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = arw_CurrentArrowSerpMember |  |
Former Arrow SERP [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Number of Participants | 19 arw_NumberOfParticipants / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = arw_FormerArrowSerpMember |  |
Supplemental Employee Retirement Plan, Defined Benefit [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Benefits Paid | (3,476)us-gaap_DefinedBenefitPlanBenefitsPaid / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember | (3,288)us-gaap_DefinedBenefitPlanBenefitsPaid / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = us-gaap_SupplementalEmployeeRetirementPlanDefinedBenefitMember |
Wyle Defined Benefit Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Benefits Paid | (5,880)us-gaap_DefinedBenefitPlanBenefitsPaid / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = arw_WyleDefinedBenefitPlanMember | (6,170)us-gaap_DefinedBenefitPlanBenefitsPaid / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = arw_WyleDefinedBenefitPlanMember |
Defined Benefit Plan, Contributions by Employer | 4,500 us-gaap_DefinedBenefitPlanContributionsByEmployer / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = arw_WyleDefinedBenefitPlanMember | 300 us-gaap_DefinedBenefitPlanContributionsByEmployer / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = arw_WyleDefinedBenefitPlanMember |
Defined Benefit Plan, Prior Service Cost [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Amortization of Net Gains (Losses) | 9 us-gaap_DefinedBenefitPlanFutureAmortizationOfGainLoss / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = arw_DefinedBenefitPlanPriorServiceCostMember |  |
Defined Benefit Plan, Actuarial Loss [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Amortization of Net Gains (Losses) | 2,945 us-gaap_DefinedBenefitPlanFutureAmortizationOfGainLoss / us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis = arw_DefinedBenefitPlanActuarialLossMember |  |
International [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Contribution Plan, Cost Recognized | $ 27,284 us-gaap_DefinedContributionPlanCostRecognized / dei_EntityByLocationAxis = arw_InternationalMember | $ 26,038 us-gaap_DefinedContributionPlanCostRecognized / dei_EntityByLocationAxis = arw_InternationalMember | $ 23,990 us-gaap_DefinedContributionPlanCostRecognized / dei_EntityByLocationAxis = arw_InternationalMember
Equities [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Target Allocation Percentage of Assets, Equity Securities | 65.00%us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations / us-gaap_StatementEquityComponentsAxis = arw_EquitiesMember |  |
Fixed Income [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Target Allocation Percentage of Assets, Equity Securities | 35.00%us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations / us-gaap_StatementEquityComponentsAxis = arw_FixedIncomeMember |  |

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- Definition Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Prior Service Cost (Credit), After Tax + References No definition available. + Details
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- Definition Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Actuarial Cost (Credit), After Tax + References No definition available. + Details
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- Definition The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Postretirement Benefits -URI http://asc.fasb.org/extlink&oid=6521376 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Glossary Benefits -URI http://asc.fasb.org/extlink&oid=6506267 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Glossary Benefits -URI http://asc.fasb.org/extlink&oid=6506309 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(6) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(5) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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- Definition The increase in the fair value of plan assets from contributions made by the employer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 + Details
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- Definition Amount included in accumulated other comprehensive income (AOCI) related to gain (loss) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position. + References No definition available. + Details
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- Definition Target allocation of investments of this type to total plan assets presented on a weighted average basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c)(i) -URI http://asc.fasb.org/extlink&oid=28361610&loc=d3e2446-114920 + Details
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