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Goodwill and Other Intangible Assets, Net - Additional Information (Detail) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Finite-Lived Intangible Assets [Line Items] |  |  |
Adjustments to purchase price allocations | $ 800,000 | $ 2,600,000 |
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) | 0 | 0 |
Amortization expense related to finite-lived intangible assets | 17,600,000 | 10,200,000 | 8,700,000
Customer relationships [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Weighted average period (in years) | 13 years 7 months 6 days |  |
Proprietary technology [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Weighted average period (in years) | 12 years 3 months 18 days |  |
Patents [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Weighted average period (in years) | 11 years 4 months 7 days |  |
Bornemann [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Adjustments to purchase price allocations | 800,000 |  |
Proceeds from previous acquisition | 700,000 |  |
Bornemann [Member] | Trademarks [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets acquired |  | 11,400,000 |
Bornemann [Member] | Customer relationships [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets acquired |  | 17,600,000 |
Weighted average period (in years) |  | 9 years 7 months 6 days |
Bornemann [Member] | Proprietary technology [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Intangible assets acquired |  | 17,100,000 |
Weighted average period (in years) |  | 12 years 2 months 6 days |
Shape Cutting Businesses [Member] |  |  |
Finite-Lived Intangible Assets [Line Items] |  |  |
Goodwill disposed off |  | $ 12,900,000 |

X
- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, resulting from a business combination. + References No definition available. + 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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- Definition Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=21917927&loc=d3e961-128460 + Details
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- Definition Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 + Details
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- Definition Cash inflow representing an adjustment to the purchase price of a previous acquisition. + References No definition available. + Details
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