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Selected Segment Data (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Segment Reporting Information [Line Items] |  |  |
Net sales | $ 1,356.9 | $ 1,383.6 | $ 1,061.0
Operating profit (loss): | (140.1) | (7.6) | (133.3)
Other operating credits and charges, net | 11.2 | (0.1) | (1.6)
Gain (loss) on sale or impairment of long-lived assets | (73.9) | (2.4) | 2.5
General corporate and other expenses, net | (66.4) | (73.4) | (76.5)
Foreign currency gains (losses) | (1.0) | 2.2 | 13.4
Other than temporary impairment | 14.8 | 17.0 | 2.0
Equity Investment, Other than Temporary Impairment | (14.8) | (17.0) | (2.0)
Other Nonoperating Expense | 1.0 | (2.2) | 7.3
Investment income | 28.7 | 38.4 | 47.7
Interest expense, net of capitalized interest | (56.9) | (63.9) | (74.6)
Loss from continuing operations before taxes | (211.0) | (54.3) | (179.9)
Provision (benefit) for income taxes | (39.1) | (22.1) | (63.4)
Loss from continuing operations | (171.9) | (32.2) | (116.5)
Other Depreciation and Amortization | 78.9 | 82.0 | 80.0
Payments to Acquire Property, Plant, and Equipment | 21.4 | 14.5 | 9.6
OSB [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 542.0 | 602.7 | 408.8
Operating profit (loss): | (63.5) | 25.8 | (65.1)
Other Depreciation and Amortization | 36.3 | 37.4 | 35.2
Payments to Acquire Property, Plant, and Equipment | 8.9 | 7.1 | 2.5
Siding [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 429.8 | 427.8 | 379.4
Operating profit (loss): | 42.0 | 51.3 | 29.3
Other Depreciation and Amortization | 15.5 | 18.1 | 18.5
Payments to Acquire Property, Plant, and Equipment | 5.9 | 5.6 | 4.5
Engineered Wood Products [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 203.3 | 192.0 | 157.7
Operating profit (loss): | (15.5) | (21.3) | (33.1)
Other Depreciation and Amortization | 12.6 | 13.1 | 12.2
Payments to Acquire Property, Plant, and Equipment | 2.0 | 0.4 | 0.2
South America [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 144.9 | 124.7 | 79.1
Operating profit (loss): | 11.6 | 7.2 | 0.4
Other Depreciation and Amortization | 11.6 | 10.0 | 9.4
Payments to Acquire Property, Plant, and Equipment | 2.7 | 1.1 | 2.2
Other [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | 39.4 | 42.9 | 37.9
Operating profit (loss): | (12.5) | (1.1) | 0.4
Other Depreciation and Amortization | 0.8 | 1.1 | 1.3
Payments to Acquire Property, Plant, and Equipment | 0.2 | 0 | 0.1
Intersegment elimination [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Net sales | (2.5) | (6.5) | (1.9)
Unallocated Amount to Segment [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Other Depreciation and Amortization | 2.1 | 2.3 | 3.4
Payments to Acquire Property, Plant, and Equipment | $ 1.7 | $ 0.3 | $ 0.1

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