Commitments, Contingencies And Uncertainties (Power Purchase and Sale Contracts) (Details) (Macho Springs Solar)	3 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2014 MW
Macho Springs Solar
Long-term Contract for Purchase of Electric Power [Line Items]
Plant Capacity		50
Plant Commercial Operation Date	May 23, 2014