|
Segment Geographic and Significant Customer Information - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
|
Oct. 26, 2012
|
Oct. 28, 2011
|
Oct. 26, 2012
|
Oct. 28, 2011
|
Apr. 27, 2012
|
|
| Segment Reporting Information [Line Items] | |||||
| Net revenues | $ 1,541.2 | $ 1,507.0 | $ 2,985.8 | $ 2,965.2 | |
| Threshold for disclosure percentage | 10.00% | 10.00% | 10.00% | 10.00% | 10.00% |
|
United States
|
|||||
| Segment Reporting Information [Line Items] | |||||
| Net revenues | $ 797.6 | $ 770.4 | $ 1,509.0 | $ 1,459.7 | |
|
International
|
|||||
| Segment Reporting Information [Line Items] | |||||
| Threshold for disclosure percentage | 10.00% | 10.00% | 10.00% | 10.00% | |