Schedule of Gross Carrying Value and Accumulated Amortization for Each Major Class of Intangible Asset (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 463,841	$ 414,254
Intangible assets - Gross Carrying Amount	525,941	476,354
Amortized intangible assets - Accumulated Amortization	(238,104)	(205,190)
Amortized intangible assets - Net	225,737	209,064
Intangible assets - Net	287,837	271,164
Patents
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	10,202	10,016
Amortized intangible assets - Accumulated Amortization	(6,175)	(5,313)
Amortized intangible assets - Net	$ 4,027	4,703
Amortized intangible assets - Weighted Average Life	11 years
Trade Names
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 110,658	104,118
Amortized intangible assets - Accumulated Amortization	(38,696)	(32,881)
Amortized intangible assets - Net	$ 71,962	71,237
Amortized intangible assets - Weighted Average Life	16 years
Customer Relationships
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 257,071	222,486
Amortized intangible assets - Accumulated Amortization	(144,134)	(126,193)
Amortized intangible assets - Net	$ 112,937	96,293
Amortized intangible assets - Weighted Average Life	11 years
Non-Compete Agreements
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 794	840
Amortized intangible assets - Accumulated Amortization	(775)	(636)
Amortized intangible assets - Net	$ 19	204
Amortized intangible assets - Weighted Average Life	3 years
Unpatented technology and other
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 78,562	69,760
Amortized intangible assets - Accumulated Amortization	(42,745)	(35,165)
Amortized intangible assets - Net	$ 35,817	34,595
Amortized intangible assets - Weighted Average Life	10 years
Other Amortizable Intangible Assets
Goodwill And Intangible Assets [Line Items]
Amortized intangible assets - Gross Carrying Amount	$ 6,554	7,034
Amortized intangible assets - Accumulated Amortization	(5,579)	(5,002)
Amortized intangible assets - Net	$ 975	2,032
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