Effect of Derivative Instruments Designated as Cash Flow Hedges and Those Not Designated as Hedging Instruments (Detail) (USD $) In Thousands	6 Months Ended
	Oct. 01, 2011
Designated as Hedging Instrument
Derivative Instruments, Gain (Loss) [Line Items]
Reclassified from AOCI into Earnings (Effective Portion)	$ 2,900
Designated as Hedging Instrument | Cash Flow Hedging | Foreign Exchange Contract | Net revenues, COGS, and SG&A
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Recognized in AOCI (Effective Portion)	(2,889)
Reclassified from AOCI into Earnings (Effective Portion)	2,896
Designated as Hedging Instrument | Cash Flow Hedging | Foreign Exchange Contract | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Amount Excluded from Effectiveness Testing	167	[1]
Designated as Hedging Instrument | Foreign Exchange Contract
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Recognized in AOCI (Effective Portion)	2,900
Foreign Exchange Contract | Not Designated as Hedging Instrument | Other Expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount Excluded from Effectiveness Testing	1,670	[1]
Foreign Exchange Contract
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Loss Recognized in AOCI (Effective Portion)	(2,889)
Reclassified from AOCI into Earnings (Effective Portion)	2,896
Amount Excluded from Effectiveness Testing	$ 1,837	[1]

[1] We exclude the difference between the spot rate and hedge forward rate from our effectiveness testing.