Retirement Plans - Net Pension Income or Postretirement Expense (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jun. 29, 2014	Jun. 30, 2013
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Net pension (income) expense, net	$ (454)	$ 545	$ (1,080)	$ 1,091
Domestic Pension Plans [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	48	648	96	1,297
Interest cost	3,053	2,711	6,111	5,423
Expected return on plan assets	(5,208)	(5,042)	(10,416)	(10,085)
Amortization of prior service cost		149		298
Amortization of (gain) loss	1,416	1,921	2,829	3,842
Additional cost due to retirement	172		172
Net pension (income) expense, net	(519)	387	(1,208)	775
Foreign Pension Plans [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	21	28	42	56
Interest cost	155	133	305	265
Expected return on plan assets	(170)	(101)	(337)	(201)
Amortization of (gain) loss	59	98	118	196
Net pension (income) expense, net	65	158	128	316
Other Postretirement Benefit Plan [Member]
Defined Benefit Plan, Net Periodic Benefit Cost [Abstract]
Service cost	1	2	2	4
Interest cost	58	56	115	111
Amortization of (gain) loss	(40)		(79)
Net pension (income) expense, net	$ 19	$ 58	$ 38	$ 115