Contingencies (Details)	1 Months Ended		9 Months Ended
	Jan. 31, 2012	Jan. 31, 2009 Amendments	Dec. 31, 2014 Company
Contingencies (Textual) [Abstract]
Companies named as Potentially Responsible Parties (more than)			100
Amendments approved to consent decree		2
Percent of contribution to the total waste	0.50%