Acquisitions (Intangible) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Oct. 26, 2012
Finite-lived Intangible Assets [Roll Forward]
Carrying amount of intangible assets, Beginning Balance:	$ 39,877
Other intangible assets acquired	4,132
Accumulated amortization	(466)
Carrying amount of intangible assets, Ending Balance:	43,543
BEF Foods [Member]
Finite-lived Intangible Assets [Roll Forward]
Carrying amount of intangible assets, Beginning Balance:	0
Other intangible assets acquired	4,132
Accumulated amortization	(56)
Carrying amount of intangible assets, Ending Balance:	4,076
Mimi's [Member]
Finite-lived Intangible Assets [Roll Forward]
Carrying amount of intangible assets, Beginning Balance:	39,877
Other intangible assets acquired	0
Accumulated amortization	(410)
Carrying amount of intangible assets, Ending Balance:	$ 39,467