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Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond 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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Commitments and Contingencies (Details) € in Thousands, $ in Thousands	Apr. 14, 2025 EUR (€)	Apr. 14, 2025 USD ($)	Apr. 11, 2025 EUR (€)	Apr. 11, 2025 USD ($)	Dec. 31, 2024 USD ($)	Sep. 27, 2024 USD ($)	Dec. 31, 2023	Dec. 31, 2022	Dec. 10, 2020	Apr. 24, 2020
Commitments under Newbuilding Program [Member] \| Plan [Member]
Commitments and Contingencies [Abstract]
Contractual commitments payable		$ 17,654	€ 42,000	$ 46,200
Contractual commitments payable in 2025	€ 6,500	$ 7,150	6,500	7,150
Contractual commitments payable in 2026			18,000	19,800
Contractual commitments payable in 2027			€ 17,500	19,250
Additional Contractual Obligations to Seller of Newbuilding Yacht [Member] \| Plan [Member]
Commitments and Contingencies [Abstract]
Contractual commitments payable				$ 17,654
California 19 Inc. and California 20 Inc. [Member] \| Refinanced Credit Facility with Alpha Bank [Member]
Commitments and Contingencies [Abstract]
Face amount						$ 60,000
Balance outstanding					$ 59,000
California 19 Inc. [Member]
Commitments and Contingencies [Abstract]
Ownership percentage					50.00%		50.00%	50.00%	50.00%	50.00%
California 19 Inc. [Member] \| Refinanced Credit Facility with Alpha Bank [Member]
Commitments and Contingencies [Abstract]
Face amount						30,000
California 20 Inc. [Member]
Commitments and Contingencies [Abstract]
Ownership percentage					50.00%		50.00%	50.00%	50.00%	50.00%
California 20 Inc. [Member] \| Refinanced Credit Facility with Alpha Bank [Member]
Commitments and Contingencies [Abstract]
Face amount						$ 30,000