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Debt - Credit Facility (Details) € in Millions	Mar. 31, 2023 USD ($)	Mar. 31, 2023 EUR (€)	Dec. 31, 2022 USD ($)	Sep. 20, 2022 EUR (€)	Nov. 02, 2021 USD ($)
Casthouse facility
Line of Credit Facility [Line Items]
Credit facility face amount					$ 130,000,000
Medium-term Notes
Line of Credit Facility [Line Items]
Credit facility face amount | €				€ 13.6
Medium-term Notes | EURIBOR
Line of Credit Facility [Line Items]
Outstanding borrowings	$ 12,300,000	€ 11.3
U.S. revolving credit facility
Line of Credit Facility [Line Items]
Letter of credit sub-facility amount	150,000,000
U.S. revolving credit facility | Revolving credit facility
Line of Credit Facility [Line Items]
Credit facility face amount	250,000,000
Outstanding borrowings	63,100,000
Outstanding letters of credit issued	41,100,000
Credit facility maximum amount	250,000,000.0
Revolving credit facility	63,100,000		$ 90,000,000.0
Borrowing availability	169,800,000
Borrowing availability, net of borrowings	65,600,000
Iceland revolving line of credit | Revolving credit facility
Line of Credit Facility [Line Items]
Credit facility face amount	100,000,000.0
Outstanding borrowings	45,000,000.0
Outstanding letters of credit issued	0
Credit facility maximum amount	80,000,000
Revolving credit facility	45,000,000		35,000,000.0
Borrowing availability	100,000,000.0
Borrowing availability, net of borrowings	55,000,000.0
Iceland revolving line of credit | Iceland term facility
Line of Credit Facility [Line Items]
Revolving credit facility	$ 12,300,000		$ 13,300,000

X

- Definition

The amount of additional borrowings provided in credit facility under a letter of credit sub-facility.

+ References

No definition available.

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- Definition

Line of Credit Facility, Remaining Borrowing Capacity, Net of Letters of Credit

+ References

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X

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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X

- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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- Definition

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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- Definition

Carrying value as of the balance sheet date of the portion of long-term, collateralized debt obligations due within one year or the operating cycle, if longer. Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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