Accumulated Other Comprehensive Income - (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 29, 2013	Mar. 30, 2012
Accumulated Other Comprehensive Income (Loss) [Rollward]
Beginning balance	$ (123,114)	$ (98,839)
Other comprehensive income (loss) before reclassifications	(1,896)	(541)
Amounts reclassified from accumulated other comprehensive income	1,637	818
Net change in accumulated other comprehensive income	(259)	277
Ending balance	(123,373)	(98,562)
Pension and Post Employment Benefits [Member]
Accumulated Other Comprehensive Income (Loss) [Rollward]
Beginning balance	(127,541)	(105,236)
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive income	1,876	1,284
Net change in accumulated other comprehensive income	1,876	1,284
Ending balance	(125,665)	(103,952)
Foreign Currency Translation [Member]
Accumulated Other Comprehensive Income (Loss) [Rollward]
Beginning balance	4,077	4,947
Other comprehensive income (loss) before reclassifications	(2,754)	(754)
Amounts reclassified from accumulated other comprehensive income	0	0
Net change in accumulated other comprehensive income	(2,754)	(754)
Ending balance	1,323	4,193
Foreign Currency [Member] | Gains and Losses On Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Rollward]
Beginning balance	253	1,399
Other comprehensive income (loss) before reclassifications	858	213
Amounts reclassified from accumulated other comprehensive income	(142)	(415)
Net change in accumulated other comprehensive income	716	(202)
Ending balance	969	1,197
Precious Metals [Member] | Gains and Losses On Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Rollward]
Beginning balance	97	51
Other comprehensive income (loss) before reclassifications	0	0
Amounts reclassified from accumulated other comprehensive income	(97)	(51)
Net change in accumulated other comprehensive income	(97)	(51)
Ending balance	$ 0	$ 0