Fair Value Measurements - Fair Value of Financial Instruments and Other Non-Financial Assets (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Operating Lease, Right-of-Use Asset	$ (52,162)	$ (76,314)
Obligation related to EU ETS - Current liability	(6,588)	0
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Current	10,000	172,604
Accrued Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Obligation related to EU ETS - Current liability	(700)
Fair Value Asset (Liability)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Current	10,000	172,604
Fair Value Asset (Liability) \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Finance Lease, Liability	0	(143,968)
Fair Value Asset (Liability) \| Recurring \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash, cash equivalents and restricted cash	689,004	480,771
Obligation related to EU ETS - Current liability	(6,588)
Marketable Securities	22,442	0
Fair Value Asset (Liability) \| Fair Value, Nonrecurring \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Operating Lease, Right-of-Use Asset	(11,735)
Carrying Amount Asset (Liability)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Current		172,604
Carrying Amount Asset (Liability) \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Finance Lease, Liability	0	(139,599)
Carrying Amount Asset (Liability) \| Level 2 \| Related Party
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment in and loan to equity-accounted investment (note 5)	380	2,880
Carrying Amount Asset (Liability) \| Recurring \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash, cash equivalents and restricted cash	689,004	480,771
Obligation related to EU ETS - Current liability	(6,588)
Marketable Securities	22,442	$ 0
Carrying Amount Asset (Liability) \| Fair Value, Nonrecurring \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Operating Lease, Right-of-Use Asset	$ (11,735)

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- Definition

Amount of cash and cash equivalents, and cash and cash equivalents restricted to withdrawal or usage. Excludes amount for disposal group and discontinued operations. 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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Amount, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity), classified as current.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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Amount of investment in marketable security.

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Amount of lessee's right to use underlying asset under operating lease.

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Amount, after allowance for credit loss, of receivable classified as other and noncurrent.

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