Derivative Accounting - Schedule of Gross Notional Amounts Outstanding (Details) - Commodity Contracts MWh in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2024 MWh Bcf	Dec. 31, 2023 MWh Bcf
Outstanding gross notional amount of derivatives
Power \| MWh	2,097	1,212
Gas \| Bcf	235,000	200,000

Nominal energy measure used to calculate payments on a derivative instrument.

No definition available.

Name:	us-gaap_DerivativeNonmonetaryNotionalAmountEnergyMeasure
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:energyItemType
Balance Type:	na
Period Type:	duration