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Restricted Cash
3 Months Ended
Mar. 31, 2012
Restricted Cash  
Restricted Cash
(H)
Restricted Cash.    At March 31, 2012 and December 31, 2011, we had restricted cash totaling $52,354,000 and $43,683,000, respectively, of which $51,741,000 and $43,070,000 was classified as long-term. The long-term restricted cash balance at March 31, 2012 and December 31, 2011 consisted of funds posted as collateral by counterparties to our interest rate options. The current portion of restricted cash at March 31, 2012 and December 31, 2011 primarily consisted of clean renewable energy bond proceeds on deposit with CoBank, ACB to fund a qualifying project at the Rocky Mountain Pumped Storage Hydroelectric Facility.