Property, Plant and Equipment (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Property Plant and Equipment (Textual) [Abstract]
Depreciation expense, inclusive of expense captured in cost of revenue	$ 2.4	$ 2.0	$ 6.9	$ 6.0