Employee Benefit Plans - Schedule of Assets by Investment Type (Detail) - USD ($) $ in Millions		Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Fair Value Measured at Net Asset Value Per Share
Asset Category
Total Pension Plan Assets	[1]	$ 50.0	$ 49.1
Investments in equity securities
Asset Category
Total Pension Plan Assets		7.7	15.1
Debt securities
Asset Category
Total Pension Plan Assets		$ 41.9	$ 32.8
FPU Pension Plan
Asset Category
Percentage of assets by investment type		100.00%	100.00%	100.00%
Total Pension Plan Assets		$ 50.0	$ 49.1	$ 49.5
FPU Pension Plan | Investments in equity securities
Asset Category
Percentage of assets by investment type		15.00%	31.00%	50.00%
FPU Pension Plan | Debt securities
Asset Category
Percentage of assets by investment type		84.00%	67.00%	49.00%
FPU Pension Plan | Other
Asset Category
Percentage of assets by investment type		1.00%	2.00%	1.00%

[1] (5) All investments in the FPU Pension Plan are classified as Level 1 within the Fair Value hierarchy exclusive of the Guaranteed Deposit Account which is classified as Level 3.