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Acquisition - Additional Information (Detail) (USD $) In Millions, unless otherwise specified | 6 Months Ended | 1 Months Ended |  | 1 Months Ended |  | 1 Months Ended |
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Jun. 30, 2013 Customer Relationships | Jun. 30, 2013 Other Intangible Assets | Mar. 31, 2012 Packaging Specialists | Mar. 16, 2012 Packaging Specialists | Mar. 31, 2012 Packaging Specialists Customer Relationships | Mar. 16, 2012 Packaging Specialists Customer Relationships | Mar. 31, 2012 Packaging Specialists Other Intangible Assets | Mar. 16, 2012 Packaging Specialists Other Intangible Assets
Business Acquisition [Line Items] |  |  |  |  |  |  |  |
Business acquisition, cost of acquired entity |  |  | $ 35.4 |  |  |  |  |
Purchase price allocation to goodwill deductible for tax purposes |  |  |  | 9.6 |  |  |  |
Purchase price allocation to intangible assets |  |  |  |  |  | $ 15.5 |  | $ 0.6
Intangible asset, useful life, in years | 16 years 4 months 24 days | 2 years 6 months |  |  | 15 years |  | 4 years |

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- Definition The amount of goodwill arising from a business combination that is expected to be deductible for tax purposes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=7488404&loc=d3e6927-128479 + Details
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6578-128477 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=6911251&loc=d3e6613-128477 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7488404&loc=d3e6927-128479 + Details
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- Definition Amount of intangible assets, excluding goodwill, acquired at the acquisition date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 + Details
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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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