Commitment and contingencies.

No definition available.

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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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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- Definition

Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments.

+ References

No definition available.

+ Details

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- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
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- Definition

Amount of loss contingency liability expected to be resolved after one year or beyond the normal operating cycle, if longer.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
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- Definition

The liability as of the balance sheet date representing required funding mandated by statute or regulatory authority that is related directly or indirectly to underwriting activities, including pools for self-insurance and excluding premium taxes and income taxes. The funds derived from the assessments generally enable a government guarantor to pay insurance claims in the event that the underwriting insurer is insolvent or otherwise unable to meet its payment obligations.

+ References

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-Publisher FASB
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Commitment and Contingencies - Additional Information (Details) - USD ($)	1 Months Ended	3 Months Ended	9 Months Ended	12 Months Ended
	Feb. 29, 2020	Mar. 19, 2019	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2018
Commitment And Contingencies [Line Items]
Minimum payment guarantee				$ 0
Operating lease, renewal term				10 years
Assessment amount	$ 1,900,000
Accrued Expenses [Member]
Commitment And Contingencies [Line Items]
Accrual for disputing assessment				$ 1,200,000
Minimum [Member]
Commitment And Contingencies [Line Items]
Operating lease, renewal term				3 years
Maximum [Member]
Commitment And Contingencies [Line Items]
Operating lease, renewal term				5 years
Carnival [Member] \| Customer Concentration Risk [Member] \| Revenue [Member]
Commitment And Contingencies [Line Items]
Concentration risk, percentage		46.70%	46.70%	43.40%	48.50%
Royal Caribbean [Member] \| Customer Concentration Risk [Member] \| Revenue [Member]
Commitment And Contingencies [Line Items]
Concentration risk, percentage		24.60%	22.70%	20.90%	21.00%
Norwegian Cruise Line [Member] \| Customer Concentration Risk [Member] \| Revenue [Member]
Commitment And Contingencies [Line Items]
Concentration risk, percentage		12.90%	15.20%	16.30%	13.80%