Stockholders Equity (detail) (USD $)				6 Months Ended	3 Months Ended		6 Months Ended
	Sep. 27, 2014	Mar. 31, 2014	Sep. 28, 2013	Sep. 27, 2014 Participating Preferred Stock Converted To Class Aa [Member]	Jun. 28, 2014 Class B Common Stock Converted To Class Aa Common [Member]	Sep. 27, 2014 Treasury Stock [Member]	Sep. 27, 2014 Common Stock [Member]
Stock Issued For Bonus Program Value					$ 56,000
Stock Issued For Bonus Program Shares					1,720
Treasury Stock, Value, Acquired, Cost Method							9,201,000
Stock Repurchased During Period, Shares							292,395
Treasury Stock, at cost	39,095,000	29,894,000	31,764,000			39,095,000
Shares, Issued						1,307,439
Conversion of Stock, Shares Converted				207,365
Conversion of Stock, Amount Converted				$ 3,213,000