Norwegian Cruise Line Holdings Ltd. General form of registration statement for all companies including face-amount certificate companies

General form of registration statement for all companies including face-amount certificate companies

Summary of Significant Accounting Policies - Additional Information (Detail)

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule Of Significant Accounting Policies [Line Items]
Allowance for doubtful accounts					$ 1.4	$ 1.9
Advertising costs included in prepaid expenses and other assets					8.3	5.0
Expenses related to advertising costs					83.7	79.9	87.4
Estimated residual values, percentage					15.00%
Amounts of tax included on a gross basis	$ 44.4	$ 37.4	$ 111.9	$ 104.0	$ 133.6	$ 129.4	$ 110.0
Revenue attributable to North American guests					82.00%	83.00%	83.00%

Amount of consideration paid in advance for advertising that provides economic benefits within a future period of one year or the normal operating cycle, if longer.

+ References + Details