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Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Summary of operating results from discontinued operations
Revenues	$ 0	$ 57,339	$ 53,247
Loss before taxes	(1,145)	(11,769)	(30,379)
Trapeze [Member]
Summary of operating results from discontinued operations
Revenues	0	57,339	53,247
Loss before taxes	(196)	(10,791)	(28,324)
Phoenix Communications [Member]
Summary of operating results from discontinued operations
Revenues	0
Loss before taxes	$ (949)	$ (978)	$ (2,055)

Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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