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Shareholders' Equity Share-Repurchase Programs (Details) - Shares Approved December 2016 [Member] $ in Thousands | Jun. 30, 2018 USD ($)
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Share-Repurchase Programs [Line Items] |
Stock Repurchase Program, Authorized Amount | $ 400,000
Stock Repurchase Program, Dollar Value of Shares Repurchased | 101,361
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $ 298,639

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- Definition [Line Items] for Share-Repurchase Programs [Table] + References No definition available. + Details
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Namespace Prefix: | arw_
Data Type: | xbrli:stringItemType
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- Definition Stock Repurchase Program, Dollar Value of Shares Repurchased + References No definition available. + Details
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Namespace Prefix: | arw_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition Amount remaining of a stock repurchase plan authorized. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Data Type: | na
Balance Type: |
Period Type: |