Goodwill and Intangible Assets (Schedule of Gross Carrying Value and Accumulated Amortization for Each Major Class of Intangible Asset) (Detail) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2016	Dec. 31, 2015
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 637,358	$ 463,841
Intangible assets - Gross Carrying Amount	728,258	525,941
Amortized intangible assets - Accumulated Amortization	(265,828)	(238,104)
Amortized intangible assets - Net	371,530	225,737
Intangible assets - Net	462,430	287,837
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
Patents
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	10,180	10,202
Amortized intangible assets - Accumulated Amortization	(6,772)	(6,175)
Amortized intangible assets - Net	$ 3,408	4,027
Amortized intangible assets - Weighted Average Life	11 years
Trade names
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 118,983	110,658
Amortized intangible assets - Accumulated Amortization	(42,190)	(38,696)
Amortized intangible assets - Net	$ 76,793	71,962
Amortized intangible assets - Weighted Average Life	16 years
Customer relationships
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 384,141	257,071
Amortized intangible assets - Accumulated Amortization	(162,524)	(144,134)
Amortized intangible assets - Net	$ 221,617	112,937
Amortized intangible assets - Weighted Average Life	12 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	$ 117,455	78,562
Amortized intangible assets - Accumulated Amortization	(48,281)	(42,745)
Amortized intangible assets - Net	$ 69,174	35,817
Amortized intangible assets - Weighted Average Life	11 years
Other
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 6,599	6,554
Amortized intangible assets - Accumulated Amortization	(6,061)	(5,579)
Amortized intangible assets - Net	$ 538	$ 975
Amortized intangible assets - Weighted Average Life	10 years