Acquisitions, Goodwill and Intangible Assets - Components of Identifiable Intangible Assets Acquired (Detail) (BrightPoint [Member], USD $) In Thousands, unless otherwise specified	1 Months Ended
	Oct. 15, 2012
Acquired Finite-Lived Intangible Assets [Line Items]
Total identifiable intangible assets	$ 309,000
Logistics customer relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets acquired , Estimated Useful Life	10 years
Total identifiable intangible assets	237,000
Distribution customer relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets acquired , Estimated Useful Life	7 years
Total identifiable intangible assets	59,000
Trade name [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Identifiable intangible assets acquired , Estimated Useful Life	3 years
Total identifiable intangible assets	$ 13,000