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COVID-19 COVID-19 Segment (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($)
Segment Reporting Information [Line Items]
Operating Special Charges, Net	$ 9,540
Asset Impairment Charges	163,360
Special charge	172,900
Allegiant Air
Segment Reporting Information [Line Items]
Operating Special Charges, Net	9,540
Asset Impairment Charges	0
Special charge	9,540
Sunseeker Resorts
Segment Reporting Information [Line Items]
Asset Impairment Charges	136,793
Special charge	136,793
Other
Segment Reporting Information [Line Items]
Asset Impairment Charges	26,567
Special charge	$ 26,567

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Operating Special Charges, Net

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Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

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-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 45
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228

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