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Information by Industry Segment (Footnotes) (Detail) (USD $)
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3 Months Ended | 12 Months Ended | 27 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Dec. 31, 2014
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Sep. 30, 2014
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Jun. 30, 2014
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Mar. 31, 2014
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Dec. 31, 2013
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Sep. 30, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2013
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| Segment Reporting Information [Line Items] | ||||||||||||
| Restructuring charges | $ 134,500,000 | $ 0 | $ 0 | $ 0 | $ 100,000 | $ 100,000 | $ 200,000 | $ 1,000,000 | $ 134,486,000 | $ 1,378,000 | $ 102,404,000 | $ 103,782,000 |
| Other operating income | 0 | 0 | 0 | 0 | 0 | 0 | 700,000 | 3,300,000 | 0 | 3,971,000 | 60,594,000 | |
| Coated Papers [Member] | ||||||||||||
| Segment Reporting Information [Line Items] | ||||||||||||
| Restructuring charges | 134,500,000 | 102,400,000 | ||||||||||
| Coated papers | ||||||||||||
| Segment Reporting Information [Line Items] | ||||||||||||
| Other operating income | 60,600,000 | |||||||||||
| Hardwood Market Pulp | ||||||||||||
| Segment Reporting Information [Line Items] | ||||||||||||
| Cash inflow from Governmental grants associated with a renewable energy project | $ 14,700,000 | |||||||||||