Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	0 Months Ended				0 Months Ended
	Sep. 30, 2013 Tax Year 2008	Jun. 12, 2014 Subsequent event	Jun. 12, 2014 Subsequent event Tax Years 2005 - 2006	Jun. 12, 2014 Subsequent event Tax Years 2007, 2009 and 2010	May 31, 2014 Subsequent event Tax Years 2007, 2009 and 2010	Jun. 12, 2014 Subsequent event Selling, and administrative costs Tax Years 2007, 2009 and 2010	Jun. 12, 2014 Subsequent event Minimum Reduction in taxes Tax Years 2007 - 2012
Gain Contingencies [Line Items]
Recovery of excessive taxes and interest	$ 0.7	$ 3.2	$ 1.6			$ 1.6
Remaining amount of claim being sought by Company				1.2
Additional refund amount					0.6
Potential aggregate recovery (maximum)							$ 3.3