Schedule of Restructuring and Related Costs (Detail) - USD ($) $ in Thousands	6 Months Ended
	Apr. 01, 2016	May. 01, 2015
Restructuring Cost And Reserve [Line Items]
Exit & Relocation of Facilities	$ 2,700	$ 6,776
Write-Off of Property, Plant & Equipment	18	681
Severance	600	1,831
Restructuring charges	3,318	9,288
Cost of Sales
Restructuring Cost And Reserve [Line Items]
Exit & Relocation of Facilities	1,249	3,014
Write-Off of Property, Plant & Equipment	18	633
Severance	180	714
Restructuring charges	1,447	4,361
Restructuring Charges
Restructuring Cost And Reserve [Line Items]
Exit & Relocation of Facilities	1,451	3,762
Write-Off of Property, Plant & Equipment	0	48
Severance	420	1,117
Restructuring charges	$ 1,871	$ 4,927