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VARIABLE INTEREST ENTITIES (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2021 USD ($) MW
ATC |
Variable interest entities |
Ownership interest (as a percent) | 60.00%
ATC Holdco |
Variable interest entities |
Ownership interest (as a percent) | 75.00%
Power purchase agreement |
Variable interest entities |
Firm capacity from power purchase agreement (in megawatts) | MW | 236
Minimum energy requirements over remaining term of power purchase agreement (in megawatts) | MW | 0
Remaining term of power purchase agreement (in years) | 1 year
Residual guarantee associated with power purchase agreement | $ | $ 0.0
Required payments over remaining term of power purchase agreement | $ | $ 11.2

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- Definition Under long-term contracts with public utility districts, cooperatives or other organizations, a utility company receives a portion of the output of a production plant constructed and financed by the district or cooperative. The utility has only a nominal or no investment at all in the plant but pays a proportionate part of the plant's costs, including debt service. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 10.D) -URI http://asc.fasb.org/extlink&oid=6499423&loc=d3e659339-123030 + Details
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