Earnings Per Share (Details) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Jul. 01, 2012	Jun. 26, 2011
Earnings per share - Basic:
Net earnings	$ 4,206,500	$ 4,574,200
Less: Distributed and undistributed earnings allocated to nonvested stock	(48,000)	(67,000)
Earnings available to common shareholders - Basic	4,159,000	4,507,000
Weighted average common shares outstanding - Basic (in shares)	7,867	7,579
Earnings per common share - Basic (in dollars per share)	$ 0.53	$ 0.59
Earnings per share - Diluted:
Net earnings	4,206,500	4,574,200
Less: Distributed and undistributed earnings allocated to nonvested stock	(47,000)	(65,000)
Earnings available to common shareholders - Diluted	$ 4,160,000	$ 4,509,000
Weighted average common shares outstanding - Basic (in shares)	7,867	7,579
Effect of dilutive options (in shares)	373	293
Weighted average common shares outstanding - Diluted (in shares)	8,240	7,872
Earnings per common share - Diluted (in dollars per share)	$ 0.51	$ 0.57
Anti-dilutive equity awards not included above (in shares)	0	0