SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 28, 2013	Dec. 29, 2012		Dec. 31, 2011
Allowance for Doubtful Accounts [Member]
Valuation Allowances and Reserves (Roll Forward)
Balance	$ 1,644	$ 1,564		$ 5,447
Charged to costs and expenses	273	867		(229)
Other additions	812	109	[1]	(2)	[1]
Deductions	338	896		3,652
Balance	2,391	1,644		1,564
Environmental Reserves [Member]
Valuation Allowances and Reserves (Roll Forward)
Balance	24,635	22,892		23,902
Charged to costs and expenses	986	3,056		392
Other additions	0	0		0
Deductions	1,984	1,313		1,402
Balance	23,637	24,635		22,892
Valuation Allowance of Deferred Tax Assets [Member]
Valuation Allowances and Reserves (Roll Forward)
Balance	30,394	29,705		28,714
Charged to costs and expenses	332	(1,224)		(443)
Other additions	0	1,913		1,434	[2]
Deductions	8,182	0		0
Balance	$ 22,544	$ 30,394		$ 29,705

[1] Other consists primarily of bad debt recoveries as well as the effect of fluctuating foreign currency exchange rates in all years presented.

[2] Other includes the additions to valuation allowances in which previously unrecorded gross deferred tax assets and valuation allowances were recognized.