The number of non-utility members from whom other operating revenue is received.

No definition available.

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- Definition

Amount of operating revenue classified as other including revenue from contract with customer.

+ References

No definition available.

+ Details

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- References

No definition available.

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- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8933-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(1))
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

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- Details

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- Details

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- Details

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- Details

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REVENUE - Non-member (Details) $ in Thousands	3 Months Ended								12 Months Ended
REVENUE - Non-member (Details) $ in Thousands	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2019 USD ($) item	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Disaggregation of revenue
Other									$ 51,399	$ 50,202	$ 89,781
Revenues	$ 331,914	$ 399,053	$ 314,588	$ 339,917	$ 276,659	$ 398,157	$ 327,513	$ 318,508	$ 1,385,472	1,320,837	1,388,593
Number of non-utility members from whom other operating revenue is received \| item									2
Non-member electric sales and other operating revenue
Disaggregation of revenue
Revenues									$ 146,800	84,965
Non-member electric sales and other operating revenue \| Calculated under Revenue Guidance in Effect before Topic 606
Disaggregation of revenue
Revenues											188,653
Non-member electric sales
Disaggregation of revenue
Revenue from contract with customer									95,401	34,763	98,872
Non-member electric sales \| Long-term contracts
Disaggregation of revenue
Revenue from contract with customer									47,224	45,314
Non-member electric sales \| Long-term contracts \| Calculated under Revenue Guidance in Effect before Topic 606
Disaggregation of revenue
Revenue from contract with customer											62,227
Non-member electric sales \| Short-term contracts
Disaggregation of revenue
Revenue from contract with customer									42,024	41,127
Non-member electric sales \| Short-term contracts \| Calculated under Revenue Guidance in Effect before Topic 606
Disaggregation of revenue
Revenue from contract with customer											31,172
Deferred non-member electric sales
Disaggregation of revenue
Revenue from contract with customer										(51,678)
Deferred non-member electric sales revenue recognized
Disaggregation of revenue
Revenue from contract with customer	$ 6,200								6,153
Deferred non-member electric sales revenue recognized \| Calculated under Revenue Guidance in Effect before Topic 606
Disaggregation of revenue
Revenue from contract with customer											5,473
Coal Sales
Disaggregation of revenue
Revenue from contract with customer									6,662	1,075
Coal Sales \| Calculated under Revenue Guidance in Effect before Topic 606
Disaggregation of revenue
Revenue from contract with customer											40,697
Other
Disaggregation of revenue
Other									$ 44,737	$ 49,127
Other \| Calculated under Revenue Guidance in Effect before Topic 606
Disaggregation of revenue
Other											$ 49,084