Goodwill and Intangible Assets - Schedule of Gross Carrying Value and Accumulated Amortization for Each Major Class of Intangible Asset (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Dec. 31, 2017
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 484,175	$ 536,160
Intangible assets - Gross Carrying Amount	575,075	627,060
Amortized intangible assets - Accumulated Amortization	(179,578)	(212,314)
Amortized intangible assets - Net	304,597	323,846
Intangible assets - Net	395,497	414,746
Banjo trade name
Goodwill And Intangible Assets [Line Items]
Indefinite lived intangible assets - Net	62,100	62,100
Akron Brass trade name
Goodwill And Intangible Assets [Line Items]
Indefinite lived intangible assets - Net	28,800	28,800
Patents
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	9,640	9,633
Amortized intangible assets - Accumulated Amortization	(7,789)	(7,143)
Amortized intangible assets - Net	$ 1,851	2,490
Amortized intangible assets - Weighted Average Life	12 years
Trade names
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 116,895	117,206
Amortized intangible assets - Accumulated Amortization	(55,799)	(50,604)
Amortized intangible assets - Net	$ 61,096	66,602
Amortized intangible assets - Weighted Average Life	16 years
Customer relationships
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 258,789	317,316
Amortized intangible assets - Accumulated Amortization	(81,485)	(124,566)
Amortized intangible assets - Net	$ 177,304	192,750
Amortized intangible assets - Weighted Average Life	14 years
Unpatented technology
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 98,151	91,166
Amortized intangible assets - Accumulated Amortization	(34,015)	(29,428)
Amortized intangible assets - Net	$ 64,136	61,738
Amortized intangible assets - Weighted Average Life	12 years
Other
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 700	839
Amortized intangible assets - Accumulated Amortization	(490)	(573)
Amortized intangible assets - Net	$ 210	$ 266
Amortized intangible assets - Weighted Average Life	10 years