Schedule Of Pension And Other Postretirement Benefit Plan Contributions (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Jul. 01, 2012	Jul. 01, 2012
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension and other postretirement benefit plan contributions	$ 4,165	$ 7,209
U.S. Defined Benefit Postretirement Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension and other postretirement benefit plan contributions	2,122	3,117
Matching Contributions To 401(k) Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension and other postretirement benefit plan contributions	1,087	2,322
Non U.S. Defined Benefit Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension and other postretirement benefit plan contributions	$ 956	$ 1,770