Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Apr. 25, 2015	Jan. 03, 2015
Accounts and notes receivable, allowances	$ 2,761	$ 2,723
Property, Plant and Equipment, accumulated depreciation	$ 1,019,388	$ 985,168
Common stock, par value	$ 0.010	$ 0.001
Common stock, authorized shares	500,000,000us-gaap_CommonStockSharesAuthorized	500,000,000us-gaap_CommonStockSharesAuthorized
Common stock, shares issued	228,729,585us-gaap_CommonStockSharesIssued	228,729,585us-gaap_CommonStockSharesIssued
Treasury stock, shares	18,652,093us-gaap_TreasuryStockShares	19,382,272us-gaap_TreasuryStockShares
Series A Preferred Stock
Preferred stock, par value	$ 100	$ 100
Preferred stock, shares authorized	200,000	200,000
Preferred stock, shares issued	0	0
Additional Series Of Preferred Stock
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	800,000	800,000
Preferred stock, shares issued	0	0

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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