Summary of Intangible Assets from Continuing Operations (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Acquired Finite And Indefinite Lived Assets Liabilities [Line Items]
Gross Carrying Amount	128,394	74,607
Accumulated Amortization	(26,769)	(16,252)
Finite intangible assets, Net Carrying Amount	101,625	58,355
Intangible assets gross excluding goodwill	129,094	75,007
Intangible assets, net	102,325	58,755
Other Intellectual Property
Acquired Finite And Indefinite Lived Assets Liabilities [Line Items]
Indefinite intangible assets, Net Carrying Amount	700	400
Customer Relationships
Acquired Finite And Indefinite Lived Assets Liabilities [Line Items]
Gross Carrying Amount	74,948	45,601
Accumulated Amortization	(14,817)	(9,546)
Finite intangible assets, Net Carrying Amount	60,131	36,055
Customer Relationships | Minimum
Acquired Finite And Indefinite Lived Assets Liabilities [Line Items]
Finite intangible assets, useful life	1 year	1 year
Customer Relationships | Maximum
Acquired Finite And Indefinite Lived Assets Liabilities [Line Items]
Finite intangible assets, useful life	11 years	11 years
Trademarks/trade names
Acquired Finite And Indefinite Lived Assets Liabilities [Line Items]
Gross Carrying Amount	24,543	15,813
Accumulated Amortization	(4,322)	(2,373)
Finite intangible assets, Net Carrying Amount	20,221	13,440
Trademarks/trade names | Minimum
Acquired Finite And Indefinite Lived Assets Liabilities [Line Items]
Finite intangible assets, useful life	3 years	3 years
Trademarks/trade names | Maximum
Acquired Finite And Indefinite Lived Assets Liabilities [Line Items]
Finite intangible assets, useful life	11 years	11 years
Technology
Acquired Finite And Indefinite Lived Assets Liabilities [Line Items]
Gross Carrying Amount	25,223	9,527
Accumulated Amortization	(4,263)	(2,161)
Finite intangible assets, Net Carrying Amount	20,960	7,366
Technology | Minimum
Acquired Finite And Indefinite Lived Assets Liabilities [Line Items]
Finite intangible assets, useful life	5 years	5 years
Technology | Maximum
Acquired Finite And Indefinite Lived Assets Liabilities [Line Items]
Finite intangible assets, useful life	10 years	10 years
Non-compete agreements
Acquired Finite And Indefinite Lived Assets Liabilities [Line Items]
Gross Carrying Amount	3,680	3,666
Accumulated Amortization	(3,367)	(2,172)
Finite intangible assets, Net Carrying Amount	313	1,494
Non-compete agreements | Minimum
Acquired Finite And Indefinite Lived Assets Liabilities [Line Items]
Finite intangible assets, useful life	2 years	2 years
Non-compete agreements | Maximum
Acquired Finite And Indefinite Lived Assets Liabilities [Line Items]
Finite intangible assets, useful life	5 years	5 years