Provision For Restructuring (Schedule Of Restructuring Expense) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013
Restructuring Cost and Reserve [Line Items]
Asset impairments	$ 172	$ 731
Total	1,892	2,016
Global Restructuring Plan (including LEAN)
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related charges	1,572	339
Asset impairments	172	731
Other exit costs	143	885
Total	1,900
SG&A Restructuring Plan
Restructuring Cost and Reserve [Line Items]
Severance and other employee-related charges	5	(16)
Other exit costs	0	77
Total	$ 5