Goodwill and Intangible Assets (Schedule of Gross Carrying Value and Accumulated Amortization for Each Major Class of Intangible Asset) (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 562,090	$ 605,645
Intangible assets - Gross Carrying Amount	652,990	696,545
Amortized intangible assets - Accumulated Amortization	(224,407)	(261,041)
Amortized intangible assets - Net	337,683	344,604
Intangible assets - Net	428,583	435,504
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	28,800
Indefinite lived intangible assets - Net	28,800	28,800
Patents
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	9,863	9,856
Amortized intangible assets - Accumulated Amortization	(6,809)	(6,635)
Amortized intangible assets - Net	$ 3,054	3,221
Amortized intangible assets - Weighted Average Life	11 years
Trade names
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 114,403	113,428
Amortized intangible assets - Accumulated Amortization	(44,714)	(42,653)
Amortized intangible assets - Net	$ 69,689	70,775
Amortized intangible assets - Weighted Average Life	16 years
Customer relationships
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 334,735	369,087
Amortized intangible assets - Accumulated Amortization	(130,996)	(161,065)
Amortized intangible assets - Net	$ 203,739	208,022
Amortized intangible assets - Weighted Average Life	12 years
Unpatented technology
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 102,260	106,747
Amortized intangible assets - Accumulated Amortization	(41,392)	(44,516)
Amortized intangible assets - Net	$ 60,868	62,231
Amortized intangible assets - Weighted Average Life	12 years
Other
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 829	6,527
Amortized intangible assets - Accumulated Amortization	(496)	(6,172)
Amortized intangible assets - Net	$ 333	$ 355
Amortized intangible assets - Weighted Average Life	10 years