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, 2019	Dec. 31, 2018
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 474,109	$ 476,191
Intangible assets - Gross Carrying Amount	565,009	567,091
Amortized intangible assets - Accumulated Amortization	(199,268)	(183,764)
Amortized intangible assets - Net	274,841	292,427
Intangible assets - Net	365,741	383,327
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	6,555	6,468
Amortized intangible assets - Accumulated Amortization	(4,986)	(4,693)
Amortized intangible assets - Net	$ 1,569	1,775
Amortized intangible assets - Weighted Average Life	12 years
Trade names
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 115,890	115,899
Amortized intangible assets - Accumulated Amortization	(60,962)	(57,227)
Amortized intangible assets - Net	$ 54,928	58,672
Amortized intangible assets - Weighted Average Life	16 years
Customer relationships
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 253,470	256,202
Amortized intangible assets - Accumulated Amortization	(92,394)	(85,652)
Amortized intangible assets - Net	$ 161,076	170,550
Amortized intangible assets - Weighted Average Life	14 years
Unpatented technology
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 97,494	96,922
Amortized intangible assets - Accumulated Amortization	(40,384)	(35,685)
Amortized intangible assets - Net	$ 57,110	61,237
Amortized intangible assets - Weighted Average Life	12 years
Other
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 700	700
Amortized intangible assets - Accumulated Amortization	(542)	(507)
Amortized intangible assets - Net	$ 158	$ 193
Amortized intangible assets - Weighted Average Life	10 years