Schedule of Estimated Useful Lives of the Property, Plant and Equipment (Details)	12 Months Ended
	Dec. 31, 2012 Y
Summary Of Significant Accounting Policies Schedule Of Estimated Useful Lives Of The Property, Plant And Equipment 1	20
Summary Of Significant Accounting Policies Schedule Of Estimated Useful Lives Of The Property, Plant And Equipment 2	10
Summary Of Significant Accounting Policies Schedule Of Estimated Useful Lives Of The Property, Plant And Equipment 3	10
Summary Of Significant Accounting Policies Schedule Of Estimated Useful Lives Of The Property, Plant And Equipment 4	5
Summary Of Significant Accounting Policies Schedule Of Estimated Useful Lives Of The Property, Plant And Equipment 5	5
Summary Of Significant Accounting Policies Schedule Of Estimated Useful Lives Of The Property, Plant And Equipment 6	3