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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, 2016 | Dec. 31, 2015
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | $ 523,780 | $ 463,841
Intangible assets - Gross Carrying Amount | 614,680 | 525,941
Amortized intangible assets - Accumulated Amortization | (260,345) | (238,104)
Amortized intangible assets - Net | 263,435 | 225,737
Intangible assets - Net | 354,335 | 287,837
Patents |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | 10,298 | 10,202
Amortized intangible assets - Accumulated Amortization | (6,633) | (6,175)
Amortized intangible assets - Net | $ 3,665 | 4,027
Amortized intangible assets - Weighted Average Life | 11 years |
Trade names |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | $ 114,307 | 110,658
Amortized intangible assets - Accumulated Amortization | (42,155) | (38,696)
Amortized intangible assets - Net | $ 72,152 | 71,962
Amortized intangible assets - Weighted Average Life | 16 years |
Customer relationships |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | $ 301,507 | 257,071
Amortized intangible assets - Accumulated Amortization | (157,907) | (144,134)
Amortized intangible assets - Net | $ 143,600 | 112,937
Amortized intangible assets - Weighted Average Life | 11 years |
Non-compete agreements |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | $ 0 | 794
Amortized intangible assets - Accumulated Amortization | 0 | (775)
Amortized intangible assets - Net | $ 0 | 19
Amortized intangible assets - Weighted Average Life | 3 years |
Unpatented technology |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | $ 91,129 | 78,562
Amortized intangible assets - Accumulated Amortization | (47,751) | (42,745)
Amortized intangible assets - Net | $ 43,378 | 35,817
Amortized intangible assets - Weighted Average Life | 10 years |
Other |  |
Goodwill And Intangible Assets [Line Items] |  |
Amortized intangible assets - Gross Carrying Amount | $ 6,539 | 6,554
Amortized intangible assets - Accumulated Amortization | (5,899) | (5,579)
Amortized intangible assets - Net | $ 640 | 975
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
Akron Brass trade name |  |
Goodwill And Intangible Assets [Line Items] |  |
Indefinite lived intangible assets - Gross Carrying Amount | 28,800 | 0
Indefinite lived intangible assets - Net | $ 28,800 | $ 0

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