Goodwill and Intangible Assets - Schedule of Gross Carrying Value and Accumulated Amortization for Each Major Class of Intangible Asset (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 536,160	$ 605,645
Intangible assets - Gross Carrying Amount	627,060	696,545
Amortized intangible assets - Accumulated Amortization	(212,314)	(261,041)
Amortized intangible assets - Net	323,846	344,604
Intangible assets - Net	414,746	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	9,633	9,856
Amortized intangible assets - Accumulated Amortization	(7,143)	(6,635)
Amortized intangible assets - Net	$ 2,490	3,221
Amortized intangible assets - Weighted Average Life	11 years
Trade Names
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 117,206	113,428
Amortized intangible assets - Accumulated Amortization	(50,604)	(42,653)
Amortized intangible assets - Net	$ 66,602	70,775
Amortized intangible assets - Weighted Average Life	16 years
Customer Relationships
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 317,316	369,087
Amortized intangible assets - Accumulated Amortization	(124,566)	(161,065)
Amortized intangible assets - Net	$ 192,750	208,022
Amortized intangible assets - Weighted Average Life	13 years
Unpatented technology and other
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 91,166	106,747
Amortized intangible assets - Accumulated Amortization	(29,428)	(44,516)
Amortized intangible assets - Net	$ 61,738	62,231
Amortized intangible assets - Weighted Average Life	13 years
Other Amortizable Intangible Assets
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 839	6,527
Amortized intangible assets - Accumulated Amortization	(573)	(6,172)
Amortized intangible assets - Net	$ 266	$ 355
Amortized intangible assets - Weighted Average Life	10 years