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Shareholders' Equity | 3 Months Ended
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Mar. 31, 2012
Stockholders' Equity Note [Abstract] |
Stockholders' Equity [Text Block] | Shareholders' Equity Share-Repurchase Program During 2011, the company's Board of Directors approved the repurchase of up to $250,000 of the company's common stock through two share-repurchase programs. As of March 31, 2012, the company repurchased 4,482,609 shares under these programs with a market value of $149,698 at the dates of repurchase.

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- Definition Disclosure represents the dollar amount and number of shares repurchased under authorized share repurchase plans. + References No definition available. + Details
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Namespace Prefix: | arw_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration