Annual report pursuant to Section 13 and 15(d)

Scheduled Principal Repayments on Long-Term Debt Including Capital Lease Obligations (Detail)

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Scheduled Principal Repayments on Long-Term Debt Including Capital Lease Obligations (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Long Term Debt Maturities Repayments Of Principal [Line Items]    
2014 $ 286,575  
2015 323,512  
2016 322,295  
2017 292,942  
2018 1,124,638  
Thereafter 777,827  
Total $ 3,127,789 $ 2,985,353