Commitments (Details) $ in Thousands	12 Months Ended
Dec. 31, 2023 USD ($)
Finance and Operating Leases
2024	$ 16,862
2025	16,652
2026	16,361
2027	16,083
2028	4,078
Thereafter	$ 8,428
Scherer Unit No. 2
Long-term Purchase Commitment [Line Items]
Ownership interest (as a percent)	60.00%
Coal
Long-term Purchase Commitment [Line Items]
2024	$ 33,810
2025	15,938
2026	9,362
2027	0
2028	0
Thereafter	0
Nuclear Fuel
Long-term Purchase Commitment [Line Items]
2024	95,520
2025	36,000
2026	32,250
2027	28,800
2028	28,500
Thereafter	45,660
Gas Transportation
Long-term Purchase Commitment [Line Items]
2024	66,186
2025	67,368
2026	69,578
2027	73,075
2028	68,971
Thereafter	835,212
Maintenance Agreements
Long-term Purchase Commitment [Line Items]
Cancellation obligation	70,699
2024	57,749
2025	43,025
2026	15,736
2027	3,237
2028	46,964
Thereafter	269,196
Asset Retirement Obligations
Long-term Purchase Commitment [Line Items]
2024	51,378
2025	39,673
2026	45,923
2027	59,885
2028	71,267
Thereafter	$ 5,065,526

The amount of convenience penalties which are to be paid if theres is any cancellation of contractual obligation.

No definition available.

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- Definition

Amount of lessee's undiscounted obligation for lease payments for finance lease and operating lease, due after fifth fiscal year following latest fiscal year.

+ References

No definition available.

+ Details

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- Definition

Lessee, Finance Lease and Operating Lease, Liability, Payments, Due Next Twelve Months

+ References

No definition available.

+ Details

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- Definition

Amount of lessee's undiscounted obligation for lease payments for finance lease and operating lease, due in fifth fiscal year following latest fiscal year.

+ References

No definition available.

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- Definition

Amount of lessee's undiscounted obligation for lease payments for finance lease and operating lease, due in fourth fiscal year following latest fiscal year.

+ References

No definition available.

+ Details

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- Definition

Amount of lessee's undiscounted obligation for lease payments for finance lease and operating lease, due in third fiscal year following latest fiscal year.

+ References

No definition available.

+ Details

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- Definition

Amount of lessee's undiscounted obligation for lease payments for finance lease and operating lease, due in second fiscal year following latest fiscal year.

+ References

No definition available.

+ Details

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- Definition

n/a

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No definition available.

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- Definition

The proportionate share of interest (percent) in a jointly owned utility plant.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 980
-SubTopic 360
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 10.C)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479960/980-360-S99-1

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of purchase arrangement to be paid after fifth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

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- Definition

Amount of purchase arrangement to be paid in fifth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

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- Definition

Amount of purchase arrangement to be paid in fourth fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

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- Definition

Amount of purchase arrangement to be paid in next fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

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- Definition

Amount of purchase arrangement to be paid in second fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

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- Definition

Amount of purchase arrangement to be paid in third fiscal year following current fiscal year. Includes, but is not limited to, recorded and unrecorded purchase obligations, long-term purchase commitment, and short-term purchase commitment. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

No definition available.

+ Details

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