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Debt - Additional Information (Details) - USD ($)	1 Months Ended	6 Months Ended
	Nov. 30, 2022	Jun. 30, 2024	Dec. 31, 2023	Nov. 21, 2022	Nov. 20, 2022	Jun. 26, 2015
Federal Funds
Debt Instrument [Line Items]
Credit facility basis point (as a percent)	0.50%
Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Credit facility basis point (as a percent)	1.00%
Credit Facility | Line of Credit
Debt Instrument [Line Items]
Senior secured revolving line of credit				$ 300,000,000	$ 150,000,000
Debt issuance costs						$ 4,000,000
Unamortized debt issuance costs		$ 3,000,000	$ 3,400,000
Credit Facility | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Senior secured revolving line of credit		$ 900,000,000				$ 550,000,000
Credit Facility | Line of Credit | Minimum
Debt Instrument [Line Items]
Commitment fee (as a percent)		0.20%
Fronting fees (as a percent)		1.25%
Credit Facility | Line of Credit | Minimum | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread (as a percent)	1.25%
Credit Facility | Line of Credit | Minimum | Base Rate
Debt Instrument [Line Items]
Basis spread (as a percent)	0.25%
Credit Facility | Line of Credit | Maximum
Debt Instrument [Line Items]
Commitment fee (as a percent)		0.35%
Fronting fees (as a percent)		2.00%
Credit Facility | Line of Credit | Maximum | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread (as a percent)	2.00%
Credit Facility | Line of Credit | Maximum | Base Rate
Debt Instrument [Line Items]
Basis spread (as a percent)	1.00%

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Amount, after accumulated amortization, of debt issuance costs related to line of credit arrangements. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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