Income Taxes (Reconciliation Of The Tax Provision At The Statutory U.S. Federal Income Tax Rate With) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2014	Dec. 29, 2013	Dec. 30, 2012
Income Tax Disclosure [Abstract]
Tax provision at the statutory federal income tax rate	$ 11,961	$ 665	$ (46,555)
Unremitted earnings	4,281	60	690
Non-deductible permanent items	1,220	1,677	1,566
Non-deductible goodwill impairment	0	0	32,503
State and local income taxes, net of federal benefit	55	82	(467)
Current year income or losses with no tax benefit or expense recognized due to valuation allowance	(8,551)	(165)	38,606
Effect of foreign operations	3,143	1,041	(19,198)
Potential tax contingencies	(634)	160	(1,052)
Change in valuation allowance	11,297	(125)	283
Stock based compensation	316	315	994
Other	133	(39)	(1,365)
Total provision	$ 23,221	$ 3,671	$ 6,005