8. Fair Value Measurements (Details) - Balance Sheet Grouping - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Government grants receivable - noncurrent	$ 430,277	$ 157,570
Carrying Value Measurement [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Government grants receivable - noncurrent	430,277	157,570
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Long-term debt, including current maturities	419,101	464,550
Estimate of Fair Value Measurement [Member]
Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract]
Government grants receivable - noncurrent	400,445	123,743
Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract]
Long-term debt, including current maturities	$ 403,083	$ 441,016

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

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Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant