Goodwill and Intangible Assets - Schedule of Gross Carrying Value and Accumulated Amortization for Each Major Class of Intangible Asset (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 443,157	$ 444,184
Intangible assets - Gross Carrying Amount	505,257	506,284
Amortized intangible assets - Accumulated Amortization	(204,547)	(195,057)
Amortized intangible assets - Net	238,610	249,127
Intangible assets - Net	300,710	311,227
Patents
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	9,955	10,673
Amortized intangible assets - Accumulated Amortization	(4,658)	(5,179)
Amortized intangible assets - Net	5,297	5,494
Amortized intangible assets - Weighted Average Life	11 years
Trade names
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	104,606	104,582
Amortized intangible assets - Accumulated Amortization	(29,939)	(28,310)
Amortized intangible assets - Net	74,667	76,272
Amortized intangible assets - Weighted Average Life	16 years
Customer relationships
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	242,933	242,674
Amortized intangible assets - Accumulated Amortization	(127,878)	(121,092)
Amortized intangible assets - Net	115,055	121,582
Amortized intangible assets - Weighted Average Life	10 years
Non-compete agreements
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	3,175	3,769
Amortized intangible assets - Accumulated Amortization	(2,744)	(3,272)
Amortized intangible assets - Net	431	497
Amortized intangible assets - Weighted Average Life	3 years
Unpatented technology
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	75,489	75,528
Amortized intangible assets - Accumulated Amortization	(34,853)	(32,905)
Amortized intangible assets - Net	40,636	42,623
Amortized intangible assets - Weighted Average Life	11 years
Other
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	6,999	6,958
Amortized intangible assets - Accumulated Amortization	(4,475)	(4,299)
Amortized intangible assets - Net	2,524	2,659
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