Summary of Components of Other Comprehensive Income (Detail) (USD $) In Thousands	3 Months Ended		6 Months Ended
	Oct. 01, 2011	Oct. 02, 2010	Oct. 01, 2011	Oct. 02, 2010
Net income	$ 13,880	$ 21,338	$ 30,828	$ 39,257
Other comprehensive income:
Net change in minimum pension liability, net of tax		27	(21)	(22)
Foreign currency translation	(2,447)	7,481	(742)	3,234
Unrealized loss on cash flow hedges, net of tax	(1,566)	(4,519)	(2,889)	(4,069)
Reclassifications into earnings of cash flow hedge losses, net of tax	1,259	149	2,896	118
Total comprehensive income	$ 11,126	$ 24,476	$ 30,072	$ 38,518