Summary of Intangible Assets from Continuing Operations (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2013	Dec. 31, 2012
Intangible Assets Net Excluding Goodwill [Line Items]
Indefinite-lived intangible asset useful life	Indefinite	Indefinite
Gross Carrying Amount	$ 75,039	$ 68,644
Intangible assets gross excluding goodwill	75,439	69,044
Accumulated Amortization	(13,568)	(7,357)
Finite intangible assets, Net Carrying Amount	61,471	61,287
Intangible assets, net	61,871	61,687
Other Intellectual Property
Intangible Assets Net Excluding Goodwill [Line Items]
Indefinite intangible assets, Net Carrying Amount	400	400
Customer Relationships
Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	46,229	40,197
Accumulated Amortization	(7,992)	(4,961)
Finite intangible assets, Net Carrying Amount	38,237	35,236
Trademarks/trade names
Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	16,013	14,713
Accumulated Amortization	(1,965)	(866)
Finite intangible assets, Net Carrying Amount	14,048	13,847
Technology
Intangible Assets Net Excluding Goodwill [Line Items]
Finite intangible assets, useful life		10 years
Gross Carrying Amount	9,131	10,068
Accumulated Amortization	(1,744)	(588)
Finite intangible assets, Net Carrying Amount	7,387	9,480
Non-compete Agreements
Intangible Assets Net Excluding Goodwill [Line Items]
Gross Carrying Amount	3,666	3,666
Accumulated Amortization	(1,867)	(942)
Finite intangible assets, Net Carrying Amount	$ 1,799	$ 2,724
Minimum | Customer Relationships
Intangible Assets Net Excluding Goodwill [Line Items]
Finite intangible assets, useful life	2 years	2 years
Minimum | Trademarks/trade names
Intangible Assets Net Excluding Goodwill [Line Items]
Finite intangible assets, useful life	5 years	5 years
Minimum | Technology
Intangible Assets Net Excluding Goodwill [Line Items]
Finite intangible assets, useful life	5 years	5 years
Minimum | Non-compete Agreements
Intangible Assets Net Excluding Goodwill [Line Items]
Finite intangible assets, useful life	2 years	2 years
Maximum | Customer Relationships
Intangible Assets Net Excluding Goodwill [Line Items]
Finite intangible assets, useful life	11 years	11 years
Maximum | Trademarks/trade names
Intangible Assets Net Excluding Goodwill [Line Items]
Finite intangible assets, useful life	11 years	11 years
Maximum | Technology
Intangible Assets Net Excluding Goodwill [Line Items]
Finite intangible assets, useful life	10 years	10 years
Maximum | Non-compete Agreements
Intangible Assets Net Excluding Goodwill [Line Items]
Finite intangible assets, useful life	3 years	3 years