Special Charges - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
	Sep. 28, 2014	Sep. 29, 2013	Sep. 28, 2014	Sep. 29, 2013
Restructuring Cost and Reserve [Line Items]
Special charges	$ 2,259,000	$ 4,349,000	$ 4,803,000	$ 16,382,000
Exit costs	2,259,000	4,349,000	3,292,000	13,953,000
Asset impairment charges			1,011,000	2,429,000
Unpaid exit costs included in current liabilities	2,100,000		2,100,000
Unpaid exit costs included in other liabilities	5,000,000		5,000,000
March 2014 Initiative [Member]
Restructuring Cost and Reserve [Line Items]
Date the company commenced the restructuring plan			Mar. 17, 2014
Special charges	2,000,000		3,700,000
Date the Company substantially completed the restructuring activities			Sep. 28, 2014
Exit costs	2,000,000		2,651,000
Asset impairment charges			1,011,000
Aggregate amount of exit costs	11,800,000		11,800,000
March 2014 Initiative [Member] | Workforce Reductions [Member]
Restructuring Cost and Reserve [Line Items]
Exit costs			2,724,000
Aggregate amount of exit costs	7,500,000		7,500,000
March 2014 Initiative [Member] | Contract Cancellation and Other [Member]
Restructuring Cost and Reserve [Line Items]
Exit costs			(73,000)
Aggregate amount of exit costs	4,300,000		4,300,000
June 2013 Initiative [Member]
Restructuring Cost and Reserve [Line Items]
Date the company commenced the restructuring plan			Jun. 03, 2013
Special charges	300,000		600,000
Exit costs	300,000		641,000
Aggregate amount of exit costs	18,000,000		18,000,000
Additional severance costs	1,000,000		1,000,000
June 2013 Initiative [Member] | Workforce Reductions [Member]
Restructuring Cost and Reserve [Line Items]
Exit costs			641,000
Aggregate amount of exit costs	14,500,000		14,500,000
June 2013 Initiative [Member] | Facilities and Other [Member]
Restructuring Cost and Reserve [Line Items]
Exit costs
Aggregate amount of exit costs	$ 3,500,000		$ 3,500,000