Restructuring Charges Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Restructuring Reserve [Roll Forward]
Accruals	$ 1,897	$ 0	$ 6,627	$ 0
Other Restructuring
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period			0
Accruals	1,500		4,143
Payments			1,599
Balance at the end of the period	2,544		2,544
Cumulative Charges Incurred	4,143		4,143
Pullmantur
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period			0
Accruals	300		2,484
Payments			2,484
Balance at the end of the period	0		0
Cumulative Charges Incurred	2,484		2,484
Employee Severance | Other Restructuring
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period			0
Accruals			4,128
Payments			1,584
Balance at the end of the period	2,544		2,544
Cumulative Charges Incurred	4,128		4,128
Employee Severance | Pullmantur
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period			0
Accruals			2,416
Payments			2,416
Balance at the end of the period	0		0
Cumulative Charges Incurred	2,416		2,416
Contract Termination | Other Restructuring
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period			0
Accruals			15
Payments			15
Balance at the end of the period	0		0
Cumulative Charges Incurred	15		15
Contract Termination | Pullmantur
Restructuring Reserve [Roll Forward]
Balance at the beginning of the period			0
Accruals			68
Payments			68
Balance at the end of the period	0		0
Cumulative Charges Incurred	$ 68		$ 68