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, 2016	Dec. 31, 2015
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 525,791	$ 463,841
Intangible assets - Gross Carrying Amount	620,691	525,941
Amortized intangible assets - Accumulated Amortization	(249,905)	(238,104)
Amortized intangible assets - Net	275,886	225,737
Intangible assets - Net	370,786	287,837
Patents
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	10,255	10,202
Amortized intangible assets - Accumulated Amortization	(6,403)	(6,175)
Amortized intangible assets - Net	$ 3,852	4,027
Amortized intangible assets - Weighted Average Life	11 years
Trade names
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 114,090	110,658
Amortized intangible assets - Accumulated Amortization	(40,664)	(38,696)
Amortized intangible assets - Net	$ 73,426	71,962
Amortized intangible assets - Weighted Average Life	16 years
Customer relationships
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 302,795	257,071
Amortized intangible assets - Accumulated Amortization	(151,765)	(144,134)
Amortized intangible assets - Net	$ 151,030	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	$ 92,102	78,562
Amortized intangible assets - Accumulated Amortization	(45,332)	(42,745)
Amortized intangible assets - Net	$ 46,770	35,817
Amortized intangible assets - Weighted Average Life	10 years
Other
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 6,549	6,554
Amortized intangible assets - Accumulated Amortization	(5,741)	(5,579)
Amortized intangible assets - Net	$ 808	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	32,800	0
Indefinite lived intangible assets - Net	$ 32,800	$ 0