Subsequent Event (Details) (Subsequent event, USD $) In Millions, unless otherwise specified	0 Months Ended	9 Months Ended
	Oct. 31, 2012 Celebrity Reflection term loan	Sep. 30, 2012 Celebrity Reflection term loan	Apr. 30, 2013 Celebrity Reflection floating rate debt Effective April 2013 Interest rate swaps
Subsequent event
Borrowed amount under previously committed unsecured term loan	$ 673.5
Percentage of unsecured term loan guaranteed by Hermes		95.00%
Unsecured term loan, amortization period	12 years
Floating rate base		LIBOR
Margin on floating rate base (as a percent)		0.40%
Debt instrument variable rate of interest (as a percent)		1.03%
Fixed rate (as a percent)			2.85%