v2.4.0.8
Long-Term Debt and Other Liabilities - Principal Repayments under Long Term Debt (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Senior Term Facility [Member]
 
Debt Instrument [Line Items]  
2014 $ 6,200
2015 6,200
2016 6,200
2017 222,219
Thereafter   
Alaska Facility [Member]
 
Debt Instrument [Line Items]  
2014 504
2015 504
2016 504
Thereafter