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Schedule of Gross Carrying Value and Accumulated Amortization for Each Major Class of Intangible Asset (Detail) (USD $) In Thousands, unless otherwise specified | 9 Months Ended |
--- | --- | ---
Sep. 30, 2012 | Dec. 31, 2011
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | $ 412,537 | $ 387,740
Intangible assets - Gross Carrying Amount | 521,645 | 496,848
Amortized intangible assets - Accumulated Amortization | (142,985) | (114,626)
Amortized intangible assets - Net | 269,552 | 273,114
Intangible assets - Net | 378,660 | 382,222
Patents |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | 10,478 | 11,506
Amortized intangible assets - Accumulated Amortization | (4,002) | (4,315)
Amortized intangible assets - Net | 6,476 | 7,191
Amortized intangible assets - Weighted Average Life | 11 years |
Trade Names |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | 82,585 | 72,823
Amortized intangible assets - Accumulated Amortization | (21,839) | (18,205)
Amortized intangible assets - Net | 60,746 | 54,618
Amortized intangible assets - Weighted Average Life | 16 years |
Customer Relationships |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | 233,551 | 221,076
Amortized intangible assets - Accumulated Amortization | (88,701) | (69,280)
Amortized intangible assets - Net | 144,850 | 151,796
Amortized intangible assets - Weighted Average Life | 10 years |
Noncompete Agreements |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | 3,560 | 4,801
Amortized intangible assets - Accumulated Amortization | (2,734) | (4,053)
Amortized intangible assets - Net | 826 | 748
Amortized intangible assets - Weighted Average Life | 3 years |
Unpatented Technology |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | 75,492 | 70,741
Amortized intangible assets - Accumulated Amortization | (22,248) | (15,617)
Amortized intangible assets - Net | 53,244 | 55,124
Amortized intangible assets - Weighted Average Life | 11 years |
Other Amortizable Intangible Assets |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | 6,871 | 6,793
Amortized intangible assets - Accumulated Amortization | (3,461) | (3,156)
Amortized intangible assets - Net | 3,410 | 3,637
Amortized intangible assets - Weighted Average Life | 10 years |
Banjo Trade Name |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Indefinite lived intangible assets - Gross Carrying Amount | 62,100 | 62,100
Indefinite lived intangible assets - Net | 62,100 | 62,100
CVI and Melles Griot trade names |  |
Goodwill and Intangible Assets Disclosure [Line Items] |  |
Indefinite lived intangible assets - Gross Carrying Amount | 47,008 | 47,008
Indefinite lived intangible assets - Net | $ 47,008 | $ 47,008

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