Financing Arrangements - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Jun. 30, 2023	Dec. 31, 2022	Dec. 30, 2022	Dec. 31, 2015
Line of Credit Facility [Line Items]
Proceeds from financing arrangement related to disposal group, cash				$ 20,000,000
Proceeds from financing arrangement related to disposal group, promissory note				25,000,000
Financing arrangement liability				$ 45,000,000
Bank guarantees and letters of credit amount		$ 46,500,000	$ 41,000,000
Percentage ownership	100.00%
Finance lease agreement, amount					$ 50,000,000
Finance lease obligation to acquire machinery and equipment		4,000,000
Additional finance leases amount		15,400,000
Arkansas Development Finance Authority | Southwest Steel Processing LLC
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity					$ 11,000,000
Borrowings outstanding		$ 3,700,000
6.625% Senior Notes Due 2027 | Senior Notes
Line of Credit Facility [Line Items]
Aggregate principal amount	$ 350,000,000
Stated interest rate	6.625%
Revolving credit facility
Line of Credit Facility [Line Items]
Stated interest rate		6.43%
Revolving credit facility | Seventh Amended and Restated Credit Agreement
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 405,000,000
Increase in additional borrowing capacity		70,000,000
Line of credit facility, remaining borrowing capacity		86,800,000
Revolving Credit Facility Canadian Sub-Limit | Seventh Amended and Restated Credit Agreement
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		40,000,000
Revolving Credit Facility European Sub-Limit | Seventh Amended and Restated Credit Agreement
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity		$ 30,000,000