Property and Equipment (Details 2) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Property and Equipment
Capitalized interest cost	$ 13,300,000	$ 14,000,000	$ 28,100,000
Pullmantur
Property and Equipment
Impairment of Pullmantur related assets	$ 48,900,000
Pullmantur | Ocean Dream
Property and Equipment
Charter term	6 years
Additional charter term after renewal of agreement	4 years
Oasis-class ship third
Property and Equipment
Approximate Berths	5,400
Oasis-class ship fourth
Property and Equipment
Optional construction contract expiration period prior to the first anniversary of the effective date of the contract	5 days