General - Additional Information (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Jan. 24, 2015
|
Jan. 25, 2014
|
Jan. 24, 2015
|
Jan. 25, 2014
|
|
Summary Of Significant Accounting Policies [Line Items] | ||||
The income tax benefit related to cash flow hedge losses | 4,867 | 12,001 | ||
Employee Stock Option [Member] | ||||
Summary Of Significant Accounting Policies [Line Items] | ||||
Securities excluded from calculation of diluted earnings per share | 102,000 | 2,000 | 102,000 | 51,000 |
Unvested Restricted Stock Awards [Member] | ||||
Summary Of Significant Accounting Policies [Line Items] | ||||
Securities excluded from calculation of diluted earnings per share | 0 | 0 | 0 | 0 |