Property and Equipment (Details)	9 Months Ended
	Aug. 31, 2020 cruise_ship passenger
NAA
Property, Plant and Equipment [Line Items]
Number of ships sold | cruise_ship	7
Capacity of ships sold | passenger	11,560
Number of ships, agreements to sell | cruise_ship	6
Capacity of ships, agreements to sell | passenger	9,620
EA
Property, Plant and Equipment [Line Items]
Number of ships sold | cruise_ship	3
Capacity of ships sold | passenger	5,510
Number of ships, agreements to sell | cruise_ship	2
Capacity of ships, agreements to sell | passenger	4,320