Commitments and Contingencies - Contingent Capital Commitments (Details)	Sep. 30, 2019 berth
Unrecorded Unconditional Purchase Obligation [Line Items]
Ship passenger capacity berths	32,900
Cruise ships on order | Royal Caribbean International Cruise Ships | Oasis-class
Unrecorded Unconditional Purchase Obligation [Line Items]
Ship passenger capacity berths	5,700
Cruise ships on order | Royal Caribbean International Cruise Ships | Icon-class
Unrecorded Unconditional Purchase Obligation [Line Items]
Ship passenger capacity berths	5,600
Cruise ships on order | Royal Caribbean International Cruise Ships | Edge-class
Unrecorded Unconditional Purchase Obligation [Line Items]
Ship passenger capacity berths	3,250