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Acquisition - Additional Information (Detail) (USD $) | 3 Months Ended | 9 Months Ended | 1 Months Ended | 9 Months Ended | 12 Months Ended
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Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 Minimum [Member] | Sep. 30, 2013 Maximum [Member] | Apr. 30, 2013 Dresden Papier GmbH [Member] | Sep. 30, 2013 Dresden Papier GmbH [Member] | Dec. 31, 2012 Dresden Papier GmbH [Member] Employees t
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Date of acquisition |  |  |  |  |  |  |  | Apr. 30, 2013 |
Payment made for acquisition, net of cash acquired |  |  | $ 210,911,000 |  |  |  | $ 211,000,000 |  |
Revenue | 457,844,000 | 406,221,000 | 1,290,525,000 | 1,191,757,000 |  |  |  | 67,800,000 | 150,000,000
Number of employees |  |  |  |  |  |  |  |  | 146
Manufacturing capacity |  |  |  |  |  |  |  |  | 60,000
Useful life of property plant and equipment |  |  |  |  | 5 years | 30 years |  |  |
Remaining useful life of intangible assets |  |  | 17 years |  |  |  |  |  |
Identifiable intangible assets |  |  | 9,800,000 |  |  |  |  |  |
Operating income | 31,841,000 | 31,285,000 | 62,133,000 | 80,051,000 |  |  |  | 12,300,000 |
Acquisition related costs |  |  |  |  |  |  |  | 3,200,000 |
Fair value write up of acquired inventory |  |  | 1,100,000 |  |  |  |  |  |
Integration related costs |  |  | $ 2,000,000 |  |  |  |  |  |

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- Definition Business acquisition preacquired number of employees. + References No definition available. + Details
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- Definition Date when the business acquisition agreement was executed, in CCYY-MM-DD format. + References No definition available. + Details
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- Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=21917927&loc=d3e1043-128460 + Details
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- Definition Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs. + References No definition available. + Details
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- Definition Amount of increase in assets, excluding financial assets and goodwill, lacking physical substance with an indefinite life, resulting from a business combination. + References No definition available. + Details
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