Goodwill and Intangible Assets - Schedule of Gross Carrying Value and Accumulated Amortization for Each Major Class of Intangible Asset (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 472,036	$ 536,160
Intangible assets - Gross Carrying Amount	562,936	627,060
Amortized intangible assets - Accumulated Amortization	(169,848)	(212,314)
Amortized intangible assets - Net	302,188	323,846
Intangible assets - Net	393,088	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	9,676	9,633
Amortized intangible assets - Accumulated Amortization	(7,582)	(7,143)
Amortized intangible assets - Net	$ 2,094	2,490
Amortized intangible assets - Weighted Average Life	11 years
Trade names
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 115,991	117,206
Amortized intangible assets - Accumulated Amortization	(54,206)	(50,604)
Amortized intangible assets - Net	$ 61,785	66,602
Amortized intangible assets - Weighted Average Life	16 years
Customer relationships
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 252,861	317,316
Amortized intangible assets - Accumulated Amortization	(76,002)	(124,566)
Amortized intangible assets - Net	$ 176,859	192,750
Amortized intangible assets - Weighted Average Life	14 years
Unpatented technology
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 92,808	91,166
Amortized intangible assets - Accumulated Amortization	(31,585)	(29,428)
Amortized intangible assets - Net	$ 61,223	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	(473)	(573)
Amortized intangible assets - Net	$ 227	$ 266
Amortized intangible assets - Weighted Average Life	10 years