Intangibles (Schedule Of Finite-Lived Intangibles) (Details) (USD $) In Thousands, unless otherwise specified				12 Months Ended		12 Months Ended
Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2011 Developed Technology [Member]	Dec. 31, 2011 In-Process Research And Development [Member]	Dec. 31, 2011 Customer Relationships [Member]	Dec. 31, 2011 Trademarks [Member]	Dec. 31, 2011 Lease Agreements [Member]	Dec. 31, 2011 Total Intangible Assets From Vocollect Acquisition [Member]	Dec. 31, 2011 Other Intangibles [Member]
Gross Carrying Amount	$ 81,959			$ 40,200	$ 1,900	$ 17,600	$ 5,200	$ 2,600	$ 67,500	$ 14,459
Accumulated Amortization	19,963			9,416		623	303	245	10,587	9,376
Net Carrying Amount	$ 61,996	$ 3,031	$ 2,587	$ 30,784	$ 1,900	$ 16,977	$ 4,897	$ 2,355	$ 56,913	$ 5,083
Weighted Average Useful Life, years				5	7	11	10	8		5

The accumulated amount of amortization of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph a(1)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16323-109275

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- Definition

Sum of the gross carrying amounts before accumulated amortization as of the balance sheet date of all intangible assets having statutory or estimated useful lives. The aggregate gross carrying amount (including any previously recognized impairment charges) of a major finite-lived intangible asset class. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

+ References

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- Definition

The aggregate sum of gross carrying value of a major finite-lived intangible asset class, less accumulated amortization and any impairment charges. A major class is composed of intangible assets that can be grouped together because they are similar, either by their nature or by their use in the operations of a company.

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- Definition

The calculated weighted-average useful life of all finite-lived intangible assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 1

-Subparagraph (a)(3)

-URI http://asc.fasb.org/extlink&oid=6905858&loc=d3e16265-109275

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