Stockholders Equity (detail) (USD $)				3 Months Ended
	Jun. 29, 2013	Mar. 31, 2013	Jun. 30, 2012	Jun. 29, 2013 Treasury Stock [Member]	Jun. 29, 2013 Common Stock [Member]
Stock Issued For Bonus Program Value					$ 4,000
Stock Issued For Bonus Program Shares					108
Treasury Stock, Value, Acquired, Cost Method				271,000
Stock Repurchased During Period, Shares				8,200
Treasury Stock, at cost	$ 31,475,000	$ 31,204,000	$ 1,880,000	$ 31,475,000
Shares, Issued				1,069,814