Multiemployer Pension Plans - Multiemployer Pension Plan Description and Contributions (Parenthetical) (Details)	12 Months Ended
	Dec. 31, 2025 Agreement $ / shares
Multiemployer Pension Plan Disclosure [Line Items]
Green zone funding percentage	80.00%
USW Plan
Multiemployer Pension Plan Disclosure [Line Items]
Number of collective-bargaining agreements | Agreement	3
USW Plan | Newark and Trentwood Facilities
Multiemployer Pension Plan Disclosure [Line Items]
Percentage of employees covered by bargaining agreement	83.00%
USW Plan | Newark and Trentwood Facilities | Starting in July Two Thousand Twenty
Multiemployer Pension Plan Disclosure [Line Items]
Monthly contributions per hour worked by each bargaining unit employee	$ 2.06
USW Plan | Richmond (Bellwood), Virginia Facility
Multiemployer Pension Plan Disclosure [Line Items]
Percentage of employees covered by bargaining agreement	15.00%
Monthly contributions per hour worked by each bargaining unit employee	$ 1.55
USW Plan | Florence, Alabama Facility
Multiemployer Pension Plan Disclosure [Line Items]
Percentage of employees covered by bargaining agreement	2.00%
Monthly contributions per hour worked by each bargaining unit employee	$ 1.35