Segment Information (Narrative) (Details) (Technology [Member], USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Technology [Member]
Intersegment profit	$ 3.9	$ 0.1	$ 4.7	$ 0.5