Postretirement Benefits - Schedule of Investment Funds (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Investment funds, unfunded commitments	$ 433,000
Minimum
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Expected life of non-redeemable funds	7 years
Expected life of non-redeemable funds with extension options	2 years
Maximum
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Expected life of non-redeemable funds	10 years
Expected life of non-redeemable funds with extension options	4 years
Multi-asset class
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Investment funds, Fair Value	$ 12,383	$ 14,714
Investment funds, unfunded commitments	0
Private equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Investment funds, Fair Value	18,163	3,600
Investment funds, unfunded commitments	48,167
Investment Funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Investment funds, Fair Value	30,546	$ 18,314
Investment funds, unfunded commitments	$ 48,167

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