Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Accounting Policies [Abstract]
Cash flow reclassification to conform to current period presentation	$ 1,890,000	$ (8,523,000)
Gross amount of port costs included in passenger ticket revenues	$ 124,100,000	$ 115,700,000