Redeemable Noncontrolling Interest (Details) (Coniexpress Sa Industrias Alimenticias [Member])	3 Months Ended
Jul. 29, 2012	Apr. 29, 2012
Coniexpress Sa Industrias Alimenticias [Member]
Redeemable Noncontrolling Interest [Line Items]
Noncontrolling Interest, Decrease from Purchase of Interests	15.00%
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	5.00%	20.00%

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

No definition available.

Name:	us-gaap_MinorityInterestOwnershipPercentageByNoncontrollingOwners
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant