Acquisition And Goodwill (Schedule Of Carrying Amount Of Goodwill) (Details) (USD $) In Thousands	9 Months Ended
Oct. 02, 2011
Acquisition And Goodwill
Balance at December 31, 2010	$ 1,152
Goodwill from acquisition of Vocollect	140,790
Goodwill from other acquisitions	1,214
Deferred tax adjustment for 2010 acquisition	290
Balance at October 2, 2011	$ 143,446

Carrying amount as of the balance sheet date, which is the cumulative amount paid and (if applicable) the fair value of any noncontrolling interest in the acquiree, adjusted for any amortization recognized prior to the adoption of any changes in generally accepted accounting principles (as applicable) and for any impairment charges, in excess of the fair value of net assets acquired in one or more business combination transactions.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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