Investment in Boise Cascade Holdings, L.L.C. (Details) (USD $)	9 Months Ended		3 Months Ended	9 Months Ended
Sep. 24, 2011	Dec. 25, 2010	Sep. 24, 2011 Boise Cascade Holdings, L.L.C. [Member]	Sep. 25, 2010 Boise Cascade Holdings, L.L.C. [Member]	Sep. 24, 2011 Boise Cascade Holdings, L.L.C. [Member]	Sep. 25, 2010 Boise Cascade Holdings, L.L.C. [Member]
Investment in affiliates, balance outstanding at end of period	$ 175,000,000	$ 175,000,000	$ 175,000,000		$ 175,000,000
Deferred gain on sale of investment in affiliates	180,000,000
Dividend accrual rate on investments					8.00%
Dividend income on investments			2,000,000	1,900,000	5,800,000	5,400,000
Dividend receivable in other non-current assets	$ 36,000,000

This item represents the aggregate carrying amount of all cost-method investments as reported on or included in the balance sheet. The original cost of the investments may differ from the aggregate carrying amount disclosed due to various adjustments such as: (i) dividends received in excess of earnings after the date of investment that are considered a return of investment and therefore recorded as reductions to cost of the investment, or (ii) a series of operating losses of an investee or other factors which may indicate that a decrease in value of the investment has occurred which is other than temporary and accordingly such decrease in value has been recognized.

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