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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, 2013 | Dec. 31, 2012
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | $ 442,746 | $ 429,063
Intangible assets - Gross Carrying Amount | 504,846 | 491,163
Amortized intangible assets - Accumulated Amortization | (183,446) | (149,791)
Amortized intangible assets - Net | 259,300 | 279,272
Intangible assets - Net | 321,400 | 341,372
Patents |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | 10,611 | 10,650
Amortized intangible assets - Accumulated Amortization | (4,920) | (4,273)
Amortized intangible assets - Net | 5,691 | 6,377
Amortized intangible assets - Weighted Average Life | 11 years |
Trade names |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | 104,248 | 103,113
Amortized intangible assets - Accumulated Amortization | (26,583) | (21,603)
Amortized intangible assets - Net | 77,665 | 81,510
Amortized intangible assets - Weighted Average Life | 16 years |
Customer relationships |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | 241,836 | 230,196
Amortized intangible assets - Accumulated Amortization | (113,784) | (93,273)
Amortized intangible assets - Net | 128,052 | 136,923
Amortized intangible assets - Weighted Average Life | 10 years |
Non-compete agreements |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | 3,750 | 3,505
Amortized intangible assets - Accumulated Amortization | (3,195) | (2,827)
Amortized intangible assets - Net | 555 | 678
Amortized intangible assets - Weighted Average Life | 3 years |
Unpatented technology |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | 75,420 | 74,758
Amortized intangible assets - Accumulated Amortization | (30,840) | (24,211)
Amortized intangible assets - Net | 44,580 | 50,547
Amortized intangible assets - Weighted Average Life | 11 years |
Other |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | 6,881 | 6,841
Amortized intangible assets - Accumulated Amortization | (4,124) | (3,604)
Amortized intangible assets - Net | 2,757 | 3,237
Amortized intangible assets - Weighted Average Life | 10 years |
Banjo trade name |  |
Goodwill And Intangible Assets [Line Items] |  |
Indefinite lived intangible assets - Gross Carrying Amount | 62,100 | 62,100
Indefinite lived intangible assets - Net | $ 62,100 | $ 62,100

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