|
Employee Retirement Plans (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Jan. 25, 2015
|
Jan. 26, 2014
|
Jan. 27, 2013
|
|
| Employee Retirement Plans [Abstract] | |||
| Employee Retirement Plans Maximum Contribution Percentage Of Earnings | 100.00% | ||
| 401K Plan employer contribution expense in US | $ 5.8 | $ 5.1 | |
| Defined Contribution Plan, Cost Recognized, outside US | $ 19.7 | $ 16.2 | $ 16.7 |