v2.4.0.8
Summary of Significant Accounting Policies - Summarizes Change in Capitalized Dry-Docking Activity (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Property, Plant and Equipment [Line Items]      
Beginning Balance $ 885,992    
Cost incurred for dry docking 19,245 7,003 3,197
Ending Balance 859,308 885,992  
Dry-Docking Activity [Member]
     
Property, Plant and Equipment [Line Items]      
Beginning Balance 18,672 20,945 26,406
Cost incurred for dry docking 19,245 7,003 3,197
Dry-dock amortization (8,648) (8,959) (8,658)
Vessel sales/held for sale (note 17)   (317)  
Ending Balance $ 29,269 $ 18,672 $ 20,945