Commitments and Contingencies (Details) (USD $)		6 Months Ended		7 Months Ended	10 Months Ended
	Jun. 30, 2013	Jun. 30, 2013 McClain Plant [Member]	Jun. 30, 2013 Redbud Plant [Member]	Oct. 31, 2013 OG&E minimum fuel purchase commitments [Member]	Oct. 31, 2013 OG&E minimum fuel purchase commitments [Member]
Long-term Purchase Commitment [Line Items]
Percentage of OG&E's projected 2013 requirements				55.80%	26.10%
Factored-Fired Hours		128,000	24,000
Factored-Fired Starts		3,600
Estimated Environmental Capital Costs	$ 1,000,000,000
Potential Penalty Under the Federal Clean Air Act	$ 37,500