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The amount of property, plant, and equipment recognized as of the acquisition date.

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Acquisitions (Estimated Fair Values Of Assets Acquired And Liabilities Assumed) (Details) (USD $) In Thousands, unless otherwise specified					6 Months Ended
	Jun. 30, 2013	Dec. 31, 2012	Jan. 31, 2013 Zenprise, Inc. [Member]	Jul. 31, 2012 Bytemobile [Member]	Jun. 30, 2013 Minimum [Member] Zenprise, Inc. [Member]	Jun. 30, 2013 Minimum [Member] Bytemobile [Member]	Jun. 30, 2013 Maximum [Member] Zenprise, Inc. [Member]	Jun. 30, 2013 Maximum [Member] Bytemobile [Member]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Current assets			$ 10,943	$ 57,837
Other assets			668	7,406
Property and equipment			431	2,484
Deferred tax assets, non-current			35,656	40,176
Intangible assets			69,200	248,900
Goodwill	1,762,714	1,518,219	249,392	223,908
Assets acquired			366,290	580,711
Current liabilities assumed			(8,475)	(62,387)
Long-term liabilities assumed			(3,107)	(4,487)
Deferred tax liabilities, non-current			(27,714)	(108,703)
Net assets acquired			$ 326,994	$ 405,134
Asset Life					1 year	1 year	7 years	9 years