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Merger and Acquisition Activities in Prior Years - Summary of Fair Value of Assets Acquired and Liabilities Assumed (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Nov. 30, 2010
Enfora [Member]
Business Acquisition [Line Items]        
Cash and cash equivalents       $ 4,600
Accounts receivables       7,448
Inventories       10,469
Property and equipment       1,597
Prepaid expenses and other assets       304
Accounts payable, accrued expenses and deferred taxes       (12,220)
Intangible assets       42,520
Goodwill 0 0 19,800 23,661
Purchase price       $ 78,379