Restructuring and Other Items - Restructuring of Operations and Other Items Net (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jul. 01, 2012	Jun. 30, 2013	Jul. 01, 2012
Restructuring Cost and Reserve [Line Items]
Total restructuring expense	$ 4,201	$ 2,209	$ 10,355	$ 4,274
Other items, net	3,606	4,282	17,904	17,679
Total restructuring of operations and other items, net	7,807	6,491	28,259	21,953
Leases [Member]
Restructuring Cost and Reserve [Line Items]
Total restructuring expense	2,031	1,181	3,799	2,815
Employee severance and benefits [Member]
Restructuring Cost and Reserve [Line Items]
Total restructuring expense	$ 2,170	$ 1,028	$ 6,556	$ 1,459