Special Charges - Activity and Liability Balances for Exit Costs (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
Restructuring Cost and Reserve [Line Items]
Beginning Balance			$ 11,217
Charged to costs and expenses	$ 6,917	$ 2,259	7,996	$ 3,292
Ending Balance	13,334		13,334
September 2015 Initiative [Member]
Restructuring Cost and Reserve [Line Items]
Charged to costs and expenses	6,900		6,900
September 2015 Initiative [Member] | Workforce Reductions [Member]
Restructuring Cost and Reserve [Line Items]
Charged to costs and expenses			6,869
Payments			(2,042)
Ending Balance	4,827		4,827
June 2013 Initiative [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance			10,052
Charged to costs and expenses	100	$ 300	479	$ 600
Payments			(2,024)
Ending Balance	8,507		8,507
June 2013 Initiative [Member] | Workforce Reductions [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance			2,476
Charged to costs and expenses			479
Payments			(984)
Ending Balance	1,971		1,971
June 2013 Initiative [Member] | Facilities and Other [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance			7,576
Payments			(1,040)
Ending Balance	$ 6,536		$ 6,536