Subsequent Event (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jun. 30, 2012
Subsequent Event (Textual) [Abstract]
Amount paid as total consideration for the Bari Acquisition	$ 66.2
Amount of Acquisition Purchase Price from Cash in Hand	45.0
Amount of Acquisition Purchase Price from Revolving Credit Facility	$ 21.2
Date of acquisition	Jul. 02, 2012