Stockholders Equity (detail) (USD $)				9 Months Ended		0 Months Ended	9 Months Ended	3 Months Ended
	Dec. 29, 2012	Mar. 31, 2012	Dec. 31, 2011	Dec. 29, 2012 Participating Preferred Stock Converted To Class Aa [Member]	Dec. 29, 2012 Class B Common Stock Converted To Class Aa Common [Member]	Aug. 30, 2012 Treasury Stock [Member]	Dec. 29, 2012 Treasury Stock [Member]	Jun. 30, 2012 Common Stock [Member]
Stock Issued For Bonus Program Value								$ 29,000
Stock Issued For Bonus Program Shares								1,330
Treasury Stock, Value, Acquired, Cost Method						25,930,000	2,518,000
Stock Repurchased During Period, Shares						864,334	89,046
Treasury Stock, at cost	29,883,000	1,435,000	785,000				3,953,000
Shares, Issued							153,879
Conversion of Stock, Shares Converted				52,200	33,760
Conversion of Stock, Amount Converted				$ 801,000	$ 8,000