The fair value of contingent consideration paid under business combination held by a third party.

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Information relating to customs related letters of credit.

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Information relating to letters of credit pledged as security.

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The amount of cash deposited in financial institutions as of the balance sheet date that is insured by the Federal Deposit Insurance Corporation.

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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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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

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Amount of cash and cash equivalents restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease.

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Commitments and Contingencies - Concentrations of Credit Risk (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2024 USD ($) customer	Mar. 31, 2023 customer	Dec. 31, 2023 USD ($) customer
Customer Concentration
Restricted cash	$ 552,800		$ 573,500
Letter of credit	351,800		370,700
Letters of credit on sale/leaseback agreements	321,000		340,000
Customs related letters of credit	30,800		30,700
Construction escrow	76,900		76,800
Federal depository insurance coverage	250
Joule Processing LLC
Customer Concentration
Consideration held by paying agent.	1,200
Alloy Custom Products, LLC and WesMor Cryogenics, LLC
Customer Concentration
Consideration held by paying agent.	200
Collateral Related to Acquisitions \| Frames Holding B.V.
Customer Concentration
Restricted cash as collateral	$ 12,300		$ 11,700
Accounts receivable \| Customer concentration \| One customers
Customer Concentration
Number of customers \| customer			1
Concentration risk (as a percent)			21.50%
Accounts receivable \| Customer concentration \| Three customers
Customer Concentration
Number of customers \| customer	3
Concentration risk (as a percent)	30.30%
Revenues \| Customer concentration \| Two customers
Customer Concentration
Number of customers \| customer	2	2
Concentration risk (as a percent)	44.20%	25.50%