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Goodwill and Intangible Assets (Schedule of Gross Carrying Value and Accumulated Amortization for Each Major Class of Intangible Asset) (Detail) - USD ($) $ in Thousands | 6 Months Ended |
--- | --- | ---
Jun. 30, 2015 | Dec. 31, 2014
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | $ 470,045 | $ 414,254
Intangible assets - Gross Carrying Amount | 532,145 | 476,354
Amortized intangible assets - Accumulated Amortization | (218,451) | (205,190)
Amortized intangible assets - Net | 251,594 | 209,064
Intangible assets - Net | 313,694 | 271,164
Patents |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | 10,168 | 10,016
Amortized intangible assets - Accumulated Amortization | (5,768) | (5,313)
Amortized intangible assets - Net | $ 4,400 | 4,703
Amortized intangible assets - Weighted Average Life | 11 years |
Trade names |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | $ 107,506 | 104,118
Amortized intangible assets - Accumulated Amortization | (35,754) | (32,881)
Amortized intangible assets - Net | $ 71,752 | 71,237
Amortized intangible assets - Weighted Average Life | 16 years |
Customer relationships |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | $ 265,256 | 222,486
Amortized intangible assets - Accumulated Amortization | (132,125) | (126,193)
Amortized intangible assets - Net | $ 133,131 | 96,293
Amortized intangible assets - Weighted Average Life | 11 years |
Non-compete agreements |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | $ 836 | 840
Amortized intangible assets - Accumulated Amortization | (762) | (636)
Amortized intangible assets - Net | $ 74 | 204
Amortized intangible assets - Weighted Average Life | 3 years |
Unpatented technology |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | $ 79,243 | 69,760
Amortized intangible assets - Accumulated Amortization | (38,682) | (35,165)
Amortized intangible assets - Net | $ 40,561 | 34,595
Amortized intangible assets - Weighted Average Life | 10 years |
Other |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | $ 7,036 | 7,034
Amortized intangible assets - Accumulated Amortization | (5,360) | (5,002)
Amortized intangible assets - Net | $ 1,676 | 2,032
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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