|
Segment Information Revenue and Accounts Receivable by major customer (Details)
|
12 Months Ended | ||
|---|---|---|---|
|
Jan. 25, 2015
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Jan. 26, 2014
|
Jan. 27, 2013
|
|
| Customer A (REV) | |||
| Revenue, Major Customer [Line Items] | |||
| Revenue from significant customers (in percent) | 11.00% | 11.00% | 13.00% |
| Customer B (REV) | |||
| Revenue, Major Customer [Line Items] | |||
| Revenue from significant customers (in percent) | 9.00% | 10.00% | 9.00% |