The amount of coal included in unpriced sales contracts regarding remaining performance obligations.

No definition available.

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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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- Definition

Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable.

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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.

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Note 6 - Revenue 1 (Details Textual) $ in Thousands, T in Millions	1 Months Ended		3 Months Ended			9 Months Ended
	Jun. 30, 2023	May 31, 2023	Dec. 31, 2023 USD ($)	Sep. 30, 2023 USD ($) T	Sep. 30, 2022	Sep. 30, 2023 USD ($) T	Sep. 30, 2022	Jan. 01, 2023 USD ($)	Jan. 01, 2021 USD ($)
Revenue, Remaining Performance Obligation, Amount of Coal Included in Unpriced Sales Contracts (US Ton) \| T				3		3
Coal [Member]
Accounts Receivable, after Allowance for Credit Loss, Total									$ 12,800
Contract with Customer, Liability								$ 8,900
Contract with Customer, Liability, Revenue Recognized				$ 2,500		$ 7,500
Coal [Member] \| Forecast [Member]
Contract with Customer, Liability, Revenue Recognized			$ 1,300
Coal [Member] \| Geographic Concentration Risk [Member] \| INDIANA \| Revenue from Contract with Customer Benchmark [Member]
Concentration Risk, Percentage				51.00%	70.00%	52.00%	79.00%
Electric Operations [Member]
Contract with Customer, Liability								$ 26,600
Increase (Decrease) in Contract with Customer, Liability				$ 0		$ 43,800
Contract with Customer, Liability, Revenue Recognized				12,900		46,000
Electric Operations [Member] \| Forecast [Member]
Contract with Customer, Liability, Revenue Recognized			$ 8,300
Electric Operations [Member] \| Customer Concentration Risk [Member] \| Revenue from Contract with Customer Benchmark [Member] \| Midcontinent Independent System Operator [Member]
Concentration Risk, Percentage	32.00%	100.00%
Delivered Energy [Member] \| Electric Operations [Member]
Revenue from Contract with Customer, Excluding Assessed Tax				54,400		184,700
Capacity Payments [Member] \| Electric Operations [Member]
Revenue from Contract with Customer, Excluding Assessed Tax				$ 13,000		$ 46,100