Restructuring Charges (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended
	Jul. 31, 2016	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 1,897	$ 0	$ 6,627	$ 0
Pullmantur
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		0		0		$ 0
Restructuring charges		300		2,484
Pullmantur | Cruise operating, depreciation and amortization expenses
Restructuring Cost and Reserve [Line Items]
Other costs to implement initiatives				3,600
Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		2,544		2,544		0
Restructuring charges		1,500		4,143
Employee Severance | Pullmantur
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		0		0		0
Restructuring charges				2,416
Employee Severance | Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve		$ 2,544		2,544		$ 0
Restructuring charges				$ 4,128
Pullmantur and CDF Croisieres de France
Restructuring Cost and Reserve [Line Items]
Percentage of subsidiary which has been sold	51.00%
Other costs associated with the sale of subsidiary	$ 3,300