Employee Benefits - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined contribution plan, cost	$ 15,900,000	$ 14,700,000	$ 14,000,000.0
Pension
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contribution to defined benefit pension plan	3,000,000.0	3,200,000
Expected future contributions	3,000,000.0
Minimum amount of recognized expense each year associated with retirement plan	3,000,000.0
Future rate recovery amount	$ 6,000,000
Pension | Equity securities
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Target allocation percentage	85.00%
Pension | Fixed income mutual funds
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Target allocation percentage	85.00%
Pension | Minimum
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Required amount of funding of periodic pension cost	$ 3,000,000.0
Precluded future recovery of annual pension costs	3,000,000.0
Recognition of regulatory assets (in excess of)	6,000,000
Pension plan costs charged to expense	3,000,000.0
Pension | Maximum
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Precluded future recovery of annual pension costs	6,000,000.0
Reduction of regulatory assets (less than)	3,000,000
Pension plan costs charged to expense	6,000,000.0
SRP
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contribution to defined benefit pension plan	0	0
PBOP
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contribution to defined benefit pension plan	$ 200,000	$ 200,000