Schedule of Net Periodic Pension and Postretirement Benefit Cost (Income) (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 02, 2016	Oct. 04, 2015	Oct. 02, 2016	Oct. 04, 2015
United States Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure
Service cost	$ 575	$ 616	$ 1,726	$ 1,847
Interest cost	3,407	3,285	10,222	9,856
Expected return on plan assets	(3,458)	(3,629)	(10,373)	(10,888)
Amortization of prior service cost	24	34	72	101
Actuarial (gain) loss			(1,848)	(3)
Total net periodic	548	306	(201)	913
Foreign Pension Plans, Defined Benefit
Defined Benefit Plan Disclosure
Service cost	208	259	614	768
Interest cost	209	357	614	1,101
Expected return on plan assets	(6)	(185)	(17)	(595)
Actuarial (gain) loss	662		662
Settlement			(184)
Total net periodic	$ 1,073	$ 431	$ 1,689	$ 1,274