Summary of Restructuring Costs and Other Expense (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2013	Jun. 29, 2012	Jun. 28, 2013	Jun. 29, 2012
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 1,114	$ 2,451	$ 3,166	$ 4,668
Total acquisition related charges	21		1,086
Total restructuring costs and other	1,135	2,451	4,252	4,668
GERMANY
Restructuring Cost and Reserve [Line Items]
Restructuring charges		7	8	16
Fiscal Year 2011
Restructuring Cost and Reserve [Line Items]
Restructuring charges	606	2,444	2,231	4,652
2013 Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 508		$ 927