v3.26.1
Property, Plant and Equipment and Intangible Assets - Additional Information (Details)
$ in Millions
 6 Months Ended
Jun. 30, 2026
USD ($)
Vessel
ExpeditionShips
OceanShips
Property Plant And Equipment And Intangible Assets [line Items]  
Number of vessels | Vessel 92
Number of ocean ships | OceanShips 13
Number of expedition ships | ExpeditionShips 2
Longships  
Property Plant And Equipment And Intangible Assets [line Items]  
Number of vessels | Vessel 61
Small Classes  
Property Plant And Equipment And Intangible Assets [line Items]  
Number of vessels | Vessel 13
River Vessels  
Property Plant And Equipment And Intangible Assets [line Items]  
Number of vessels | Vessel 15
Additions to property, plant and equipment $ 33.3
River Vessel Charters  
Property Plant And Equipment And Intangible Assets [line Items]  
Number of vessels | Vessel 3
River Vessels Under Construction  
Property Plant And Equipment And Intangible Assets [line Items]  
Property, plant and equipment, payments under construction $ 147.3
Property, plant and equipment capitalized interest 11.5
Three River Vessels  
Property Plant And Equipment And Intangible Assets [line Items]  
Reclassification of river vessels under construction to river vessels and equipment $ 124.0
River Vessels & Equipment  
Property Plant And Equipment And Intangible Assets [line Items]  
Number of vessels | Vessel 3
Ocean and Expedition Ships & Equipment  
Property Plant And Equipment And Intangible Assets [line Items]  
Property, plant and equipment capitalized amount related to purchase $ 422.7
Ocean and Expedition Ships & Equipment | Viking Yidun  
Property Plant And Equipment And Intangible Assets [line Items]  
Property, plant and equipment capitalized amount related to purchase 408.2
Ocean and Expedition Ships Under Construction  
Property Plant And Equipment And Intangible Assets [line Items]  
Property, plant and equipment, payments under construction 650.5
Property, plant and equipment capitalized interest 12.1
Ocean and Expedition Ships Under Construction | Viking Mira [member]  
Property Plant And Equipment And Intangible Assets [line Items]  
Property, plant and equipment, payments under construction $ 539.8