Property and Equipment, Net	6 Months Ended
Jun. 30, 2026
Property, Plant and Equipment, Net [Abstract]
Property and Equipment, Net	6.Property and Equipment, Net Property and equipment, net increased $1.4 billion for the six months ended June 30, 2026 primarily due to the delivery of Norwegian Luna.

The entire disclosure for property, plant, and equipment. Includes, but is not limited to, land and land improvement; building; machinery and equipment; furniture and fixture; and work of art, historical treasure, or similar asset classified as collection.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 360
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482099/360-10-50-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 360
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 360
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 360
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-Section 50
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 360
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 360
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
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-URI https://asc.fasb.org/1943274/2147477798/958-360-50-7

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