Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Restructuring charges	$ (86,000)	$ 1,678,000	$ 1,650,000	$ 1,678,000
Gross amount of port costs included in passenger ticket revenues	137,700,000	117,000,000	261,800,000	232,700,000
Document Fiscal Year Focus			2014
June 30, 2013 Out of Period Adjustment [Abstract]
Onboard and other revenues	524,944,000	516,054,000	1,063,965,000	1,033,496,000
Out of Period Adjustment
June 30, 2013 Out of Period Adjustment [Abstract]
Onboard and other revenues		$ 15,200,000