Postretirement Benefits - Schedule of Other Long-Term Investments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Unfunded commitments	$ 558,000
Pension Plans
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value	$ 684,279	$ 614,845
Pension Plans | 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
Pension Plans | 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
Pension Plans | Fair Value Measured at Net Asset Value Per Share
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value	$ 48,411	30,546
Unfunded commitments	63,798
Unfunded commitments, including funds past investment period	78,100
Pension Plans | Fair Value Measured at Net Asset Value Per Share | Multi-asset class
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value	7,541	12,383
Unfunded commitments	0
Pension Plans | Fair Value Measured at Net Asset Value Per Share | Private equity
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value	35,824	18,163
Unfunded commitments	37,666
Pension Plans | Fair Value Measured at Net Asset Value Per Share | Infrastructure
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Fair Value	5,046	$ 0
Unfunded commitments	$ 26,132