Accumulated Other Comprehensive Income (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2013	Mar. 31, 2012
Changes In Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	$ (42,623)
Other comprehensive income before reclassifications	(6,009)
Amounts reclassified from accumulated OCI	575
Net current-period other comprehensive income	(5,434)
Ending balance	(48,057)
Reclassification adjustments out of accumulated OCI [Abstract]
Cost of goods sold	(482,850)	(493,175)
Net of tax and noncontrolling interest	(1,724)	967
Selling, general, and administrative expense	31,343	31,602
Other Comprehensive Income (Loss), Net of Tax	(5,468)	7,971
Cumulative translation adjustment [Member]
Changes In Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(3,033)
Other comprehensive income before reclassifications	(5,290)
Amounts reclassified from accumulated OCI	0
Net current-period other comprehensive income	(5,290)
Ending balance	(8,323)
Unrealized (losses)/gains on derivatives [Member]
Changes In Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(166)
Other comprehensive income before reclassifications	(1,650)
Amounts reclassified from accumulated OCI	(74)
Net current-period other comprehensive income	(1,724)
Ending balance	(1,890)
Unrealized (losses)/gains on derivatives [Member] | Amounts reclassified from accumulated other comprehensive income to: [Member]
Reclassification adjustments out of accumulated OCI [Abstract]
Cost of goods sold	(90)
Income tax expense	16
Net of tax	(74)
Noncontrolling interest	0
Net of tax and noncontrolling interest	(74)
Minimum pension/OPEB liability adjustment [Member]
Changes In Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	(39,527)
Other comprehensive income before reclassifications	890
Amounts reclassified from accumulated OCI	649
Net current-period other comprehensive income	1,539
Ending balance	(37,988)
Minimum pension/OPEB liability adjustment [Member] | Amounts reclassified from accumulated other comprehensive income to: [Member]
Reclassification adjustments out of accumulated OCI [Abstract]
Selling, general, and administrative expense	968
Income tax expense (benefit)	(319)
Net of tax	649
Noncontrolling interest	0
Net of tax and noncontrolling interest	649
Unrealized gains on equity investments [Member]
Changes In Accumulated Other Comprehensive Income [Roll Forward]
Beginning balance	103
Other comprehensive income before reclassifications	41
Amounts reclassified from accumulated OCI	0
Net current-period other comprehensive income	41
Ending balance	$ 144