Annual report pursuant to Section 13 and 15(d)

Description of Business and Organization (Detail Textuals)

v3.8.0.1
Description of Business and Organization (Detail Textuals)
 12 Months Ended
Dec. 31, 2017
CruiseShip
Berth
Description Of Business And Organization [Line Items]  
Number of cruises ships 25
Capacity of ship, berths | Berth 50,400
Project Leonardo  
Description Of Business And Organization [Line Items]  
Increased number of berths | Berth 72,300
Ships launching period through 2025  
Description Of Business And Organization [Line Items]  
Number of additional ships 7
Ships launching period through 2025 | Project Leonardo  
Description Of Business And Organization [Line Items]  
Number of cruises ships 4
Capacity of ship, berths | Berth 3,300
Number of additional ships 4
Ships launching period in 2026 and 2027  
Description Of Business And Organization [Line Items]  
Number of additional ships 2
Ships launching period in 2026 and 2027 | Project Leonardo  
Description Of Business And Organization [Line Items]  
Number of additional ships 2