Additional financial instruments and derivatives.

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Expected tons fuel usage.

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Expected tons fuel usage in percentage of anticipated usage.

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Financial Instruments and Derivatives Textuals Abstract.

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Purchase in forward contract hedge.

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Sale in Forward Contract Hedge.

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Short tons of old corrugated containers.

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Short tons of old corrugated containers in percentage of anticipated usage.

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Fair value as of the balance sheet date of all foreign currency derivatives designated as cash flow hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 10

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The amount of net gains (losses) on foreign currency cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-Subparagraph b(2), b(4)

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The estimated net amount of unrealized gains (losses) on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-Subparagraph b(2)

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Aggregate notional amount of price risk derivatives designated as a cash flow hedge with notional amounts expressed in nonmonetary units. For example the number of barrels specified in a fuel oil forward purchase contract.

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Net fair value of all derivative instruments not designated as a hedging instrument.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 107
-Paragraph 10

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Fair value as of the balance sheet date of all price risk derivatives designated as cash flow hedging instruments.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 17

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The estimated net amount of unrealized gains (losses) on price risk cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 45
-Subparagraph b(2)

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Financial Instruments and Derivatives (Details Textual)	3 Months Ended	6 Months Ended
Financial Instruments and Derivatives (Details Textual)	Jul. 03, 2011 USD ($)	Jul. 03, 2011 USD ($)	Jul. 03, 2011 MYR ShortTons gal	Jul. 03, 2011 MXN	Jul. 03, 2011 NZD	Jul. 03, 2011 THB	Jul. 03, 2011 IDR	Jul. 03, 2011 CAD	Jul. 03, 2011 AUD	Jul. 03, 2011 COP	Jul. 03, 2011 GBP (£)	Jul. 03, 2011 EUR (€)	Dec. 31, 2010 USD ($)	Jul. 03, 2011 Natural Gas Swaps [Member] MMbtus	Jul. 03, 2011 Aluminum Swaps [Member] MetricTons	Jul. 03, 2011 Other Derivatives [Member] EUR (€)	Jul. 03, 2011 Other Derivatives [Member] GBP (£)	Jul. 03, 2011 Other Derivatives [Member] CAD	Jul. 03, 2011 Other Derivatives [Member] COP
Financial Instruments and Derivatives (Textuals) [Abstract]
Approximate amount of commodity covered by swap contracts outstanding in MMBtus/metric tons														5,400,000	2,100
Purchase in forward contract hedge				101,800,000			3,500,000,000	42,700,000		5,100,000,000	£ 795,000	€ 5,000,000				€ 877,000	£ 735,000	3,900,000	11,000,000,000
Additional Financial Instruments and Derivatives (Textuals) [Abstract]
Anticipated usage percentage of natural gas covered by a swap contract for the remainder of the fiscal year			71.00%	71.00%	71.00%	71.00%	71.00%	71.00%	71.00%	71.00%	71.00%	71.00%
Anticipated usage percentage of natural gas covered by a swap contract for the first succeeding fiscal year			63.00%	63.00%	63.00%	63.00%	63.00%	63.00%	63.00%	63.00%	63.00%	63.00%
Anticipated usage percentage of natural gas covered by a swap contract for the second succeeding fiscal year			12.00%	12.00%	12.00%	12.00%	12.00%	12.00%	12.00%	12.00%	12.00%	12.00%
Anticipated usage percentage of aluminum covered by a swap contract for the remainder of the fiscal year			32.00%	32.00%	32.00%	32.00%	32.00%	32.00%	32.00%	32.00%	32.00%	32.00%
Anticipated usage percentage of aluminum covered by a swap contract for the first succeeding fiscal year			3.00%	3.00%	3.00%	3.00%	3.00%	3.00%	3.00%	3.00%	3.00%	3.00%
Short tons of old corrugated containers			38,700	38,700	38,700	38,700	38,700	38,700	38,700	38,700	38,700	38,700
Short tons of old corrugated containers in percentage of anticipated usage			6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%	6.00%
Expected tons fuel usage			201,500	201,500	201,500	201,500	201,500	201,500	201,500	201,500	201,500	201,500
Expected tons fuel usage in percentage of anticipated usage			8.00%	8.00%	8.00%	8.00%	8.00%	8.00%	8.00%	8.00%	8.00%	8.00%
Fair values of commodity cash flow hedges	(7,801,000)	(7,801,000)											(12,421,000)
Commodity gain (loss) expected to be reclassified to the income statement during the next 12 months	(6,743,000)	(6,743,000)
Sale in Forward Contract Hedge			6,400,000		1,500,000	65,300,000			2,600,000
Fair value of foreign currency cash flow hedges	1,737,000	1,737,000											229,000
Foreign currency gain (loss) expected to be reclassified to the income statement during the next 12 months	1,661,000	1,661,000
Reclassified accumulated other comprehensive loss	6,000	540,000
Total fair value of other derivatives not designated as hedging instruments	$ 1,345,000	$ 1,345,000											$ 60,000