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Business and Summary of Significant Accounting Policies - Concentration of Credit Risk (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Jan. 31, 2014
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Jan. 31, 2013
|
Jan. 31, 2012
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| Concentration Risk [Line Items] | |||
| Maximum borrowing capacity | $ 400.0 | ||
|
Tech Data | Sales Revenue, Net
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| Concentration Risk [Line Items] | |||
| Concentration risk, percentage | 24.00% | 23.00% | 21.00% |
|
Tech Data | Accounts Receivable
|
|||
| Concentration Risk [Line Items] | |||
| Concentration risk, percentage | 24.00% | 23.00% | |
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United States
|
|||
| Concentration Risk [Line Items] | |||
| Concentration risk, percentage | 25.00% | 29.00% | |
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Other Americas
|
|||
| Concentration Risk [Line Items] | |||
| Concentration risk, percentage | 1.00% | 1.00% | |
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Europe, Middle East and Africa (“EMEA”)
|
|||
| Concentration Risk [Line Items] | |||
| Concentration risk, percentage | 57.00% | 38.00% | |
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Asia Pacific (“APAC”)
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|||
| Concentration Risk [Line Items] | |||
| Concentration risk, percentage | 17.00% | 32.00% | |