Costs Associated with Exit and Restructuring Activities - Restructuring and Restructuring Related Charges of Actual Costs (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 28, 2014
June 2013 Plan [Member]
Restructuring Charges [Abstract]
Planned Costs	$ 18,600
Actual costs incurred	16,148
June 2013 Plan [Member] | Restructuring related charges, included in cost of goods sold [Member]
Restructuring Charges [Abstract]
Planned Costs	1,800
Actual costs incurred	2,980
June 2013 Plan [Member] | Inventory write-down [Member]
Restructuring Charges [Abstract]
Planned Costs	800
Actual costs incurred	1,143
June 2013 Plan [Member] | Equipment relocation [Member]
Restructuring Charges [Abstract]
Planned Costs	900
Actual costs incurred	1,288
June 2013 Plan [Member] | Other charges [Member]
Restructuring Charges [Abstract]
Planned Costs	100
Actual costs incurred	549
June 2013 Plan [Member] | Workforce reduction [Member]
Restructuring Charges [Abstract]
Planned Costs	8,300
Actual costs incurred	8,189
June 2013 Plan [Member] | Asset impairments charge [Member]
Restructuring Charges [Abstract]
Planned Costs	3,000
Actual costs incurred	4,464
June 2013 Plan [Member] | Other charges, including pension termination costs [Member]
Restructuring Charges [Abstract]
Planned Costs	5,500
Actual costs incurred	515
June 2013 Plan [Member] | Restructuring and impairment charges [Member]
Restructuring Charges [Abstract]
Planned Costs	16,800
Actual costs incurred	13,168
April 2014 Plan [Member]
Restructuring Charges [Abstract]
Planned Costs	5,700
Actual costs incurred	2,980
April 2014 Plan [Member] | Restructuring related charges, included in cost of goods sold [Member]
Restructuring Charges [Abstract]
Planned Costs	1,100
April 2014 Plan [Member] | Inventory write-down [Member]
Restructuring Charges [Abstract]
Planned Costs	250
April 2014 Plan [Member] | Equipment relocation [Member]
Restructuring Charges [Abstract]
Planned Costs	500
April 2014 Plan [Member] | Other charges [Member]
Restructuring Charges [Abstract]
Planned Costs	350
April 2014 Plan [Member] | Workforce reduction [Member]
Restructuring Charges [Abstract]
Planned Costs	4,100
Actual costs incurred	2,980
April 2014 Plan [Member] | Other charges, including pension termination costs [Member]
Restructuring Charges [Abstract]
Planned Costs	500
April 2014 Plan [Member] | Restructuring and impairment charges [Member]
Restructuring Charges [Abstract]
Planned Costs	4,600
Actual costs incurred	$ 2,980