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

Supplemental Cash Flow Information - Additional Information (Detail)

v2.4.0.8
Supplemental Cash Flow Information - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Other Significant Noncash Transactions [Line Items]      
Interest and related fees paid $ 240.6 $ 186.7 $ 254.8
Non-cash purchase agreement investing activity in connection with Norwegian Sky $ 206.1