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Divestiture Transactions and Discontinued Operations
3 Months Ended
Mar. 31, 2016
Discontinued Operations and Disposal Groups [Abstract]  
DIVESTITURE TRANSACTIONS AND DISCONTINUED OPERATIONS
DISCONTINUED OPERATIONS
On January 31, 2014, Medina Valley completed the sale of the Elgin, Gibson City, and Grand Tower gas-fired energy centers to Rockland Capital for a total purchase price of $168 million. The agreement with Rockland Capital required a portion of the purchase price to be held in escrow until January 31, 2016, to fund certain indemnity obligations, if any, of Medina Valley. Medina Valley received the amount held in escrow from Rockland Capital in the first quarter of 2016 and paid Genco its portion of the escrow amount in April 2016. See Note 16 - Divestiture Transactions and Discontinued Operations under Part II, Item 8, of the Form 10-K for additional information related to discontinued operations.