Income Taxes (Domestic And Foreign Components Of Earnings From Continuing Operations Before Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 27, 2015	Dec. 28, 2014	Dec. 29, 2013
Income Tax Disclosure [Abstract]
Domestic	$ (39,924)	$ 14,200	$ (11,014)
Foreign	21,349	19,974	12,914
(Loss) earnings from continuing operations before income taxes	(18,575)	34,174	1,900
Current Federal, State and Local, Tax Expense (Benefit) [Abstract]
Federal	(633)	(41)	(2,218)
State	68	63	73
Puerto Rico	200	77	(275)
Foreign	2,178	5,746	9,519
Total currently payable	1,813	5,845	7,099
Deferred Federal, State and Local, Tax Expense (Benefit) [Abstract]
Federal	57	2,145	3,701
State	(312)	14	35
Puerto Rico	0	0	314
Foreign	6,082	15,217	(7,478)
Total deferred	5,827	17,376	(3,428)
Total provision	$ 7,640	$ 23,221	$ 3,671