The amount of cost incurred to obtain the contract.

No definition available.

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- Definition

Represents percentage refundable on cancellation.

+ References

No definition available.

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- Definition

Number of days prior to departure the cruises booked can be cancelled.

+ References

No definition available.

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- Definition

Number of days prior to departure the cruises booked can be cancelled, certain cruises.

+ References

No definition available.

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Number of days prior to departure the cruises booked can be cancelled, certain cruises.

+ References

No definition available.

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- Definition

Identifies or describes the benchmark that serves as the denominator in the calculation of the percentage of concentration risk.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Balance Type:	credit
Period Type:	instant

- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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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.

+ References

No definition available.

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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- Definition

Amount due from customers for fees and charges arising from transactions related to the entity's brokerage activities and operations.

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Revenue Recognition (Details) $ in Millions	3 Months Ended
Revenue Recognition (Details) $ in Millions	Mar. 31, 2022 USD ($) segment	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)
Disaggregation of Revenue [Line Items]
Number of reportable segments \| segment	1
Receivables from customers included in accounts receivable, net	$ 53.3
Contract liabilities included within advance ticket sales	$ 1,000.0		$ 161,800.0
Percentage refundable on cancellation	40.00%
Number of days prior to departure the cruises booked can be cancelled	15 days
Number of days prior to departure the cruises booked can be cancelled, certain cruises	60 days
Number of days prior to departure the cruises booked can be cancelled, certain cruises	75 days
Contract liability balance recognized in revenue	$ 97.0
Cost to obtain the contract	$ 0.3	$ 14.8
Revenue \| Geographic Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, benchmark	No other individual country’s revenues exceed 10% in any given period.
Revenue \| Geographic Concentration Risk \| Minimum
Disaggregation of Revenue [Line Items]
Percentage of revenue attributable to U.S.- sourced passengers	80.00%
Revenue \| Geographic Concentration Risk \| Maximum
Disaggregation of Revenue [Line Items]
Percentage of revenue attributable to U.S.- sourced passengers	87.00%