Retirement Plans (Details) (USD $)	3 Months Ended		9 Months Ended
	Oct. 01, 2011	Oct. 02, 2010	Oct. 01, 2011	Oct. 02, 2010
Retirement Plans [Abstract]
Estimated total employer contributions to defined benefit plans in current fiscal year, lower range			$ 4,000,000
Estimated total employer contributions to defined benefit plans in current fiscal year, higher range			5,000,000
U.S. Pension Plans
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	0	12,000	0	42,000
Interest cost	1,554,000	1,573,000	4,662,000	4,743,000
Expected return on plan assets	(1,880,000)	(1,777,000)	(5,640,000)	(5,347,000)
Net amortization: Prior service credit	0	0	0	0
Net amortization: Net actuarial loss (gain)	433,000	286,000	1,299,000	810,000
Net periodic benefit cost	107,000	94,000	321,000	248,000
Defined benefit plan, contributions by employer	1,000,000		2,000,000
U.S. Retiree Healthcare Plan
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	134,000	118,000	402,000	310,000
Interest cost	94,000	75,000	282,000	281,000
Expected return on plan assets	(69,000)	(60,000)	(207,000)	(166,000)
Net amortization: Prior service credit	(13,000)	(14,000)	(39,000)	(40,000)
Net amortization: Net actuarial loss (gain)	0	0	0	0
Net periodic benefit cost	146,000	119,000	438,000	385,000
Non-U.S. Pension Plans
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	453,000	424,000	1,413,000	1,272,000
Interest cost	258,000	256,000	788,000	768,000
Expected return on plan assets	(74,000)	(79,000)	(224,000)	(237,000)
Net amortization: Prior service credit	(22,000)	0	(22,000)	0
Net amortization: Net actuarial loss (gain)	9,000	(13,000)	23,000	(39,000)
Net periodic benefit cost	$ 624,000	$ 588,000	$ 1,978,000	$ 1,764,000