Schedule Of Components Of Net Pension And Postretirement Periodic Benefit Cost (Income) (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
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 3,438	$ 3,512	$ 6,879	$ 7,028
Expected return on plan assets	(3,056)	(3,124)	(6,116)	(6,252)
Amortization and deferrals:
Transition asset	(26)	(34)	(52)	(68)
Actuarial loss	1,395	1,051	2,795	2,104
Prior service cost	(39)	(41)	(79)	(83)
Other	154	0	183	0
Net pension and postretirement periodic benefit cost (income)	1,866	1,364	3,610	2,729
U.S. Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Interest cost	2,962	2,983	5,923	5,965
Expected return on plan assets	(2,588)	(2,592)	(5,176)	(5,183)
Amortization and deferrals:
Transition asset	0	0	0	0
Actuarial loss	1,112	888	2,224	1,776
Prior service cost	0	0	0	0
Other	0	0	12	0
Net pension and postretirement periodic benefit cost (income)	1,486	1,279	2,983	2,558
Non U.S. Defined Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Interest cost	454	495	912	994
Expected return on plan assets	(468)	(532)	(940)	(1,069)
Amortization and deferrals:
Transition asset	(26)	(34)	(52)	(68)
Actuarial loss	305	163	614	328
Prior service cost	0	0	0	0
Other	154	0	171	0
Net pension and postretirement periodic benefit cost (income)	419	92	705	185
Other Postretirement Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Interest cost	22	34	44	69
Expected return on plan assets	0	0	0	0
Amortization and deferrals:
Transition asset	0	0	0	0
Actuarial loss	(22)	0	(43)	0
Prior service cost	(39)	(41)	(79)	(83)
Other	0	0	0	0
Net pension and postretirement periodic benefit cost (income)	$ (39)	$ (7)	$ (78)	$ (14)