Annual report pursuant to Section 13 and 15(d)

Long-Term Debt - Summary of scheduled principal repayments on long-term debt including capital lease obligations (Detail 1)

v2.4.1.9
Long-Term Debt - Summary of scheduled principal repayments on long-term debt including capital lease obligations (Detail 1) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Long Term Debt Maturities Repayments Of Principal [Line Items]    
2015 $ 576,947us-gaap_LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths  
2016 573,929us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearTwo  
2017 534,446us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearThree  
2018 1,746,830us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFour  
2019 992,463us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalInYearFive  
Thereafter 1,759,489us-gaap_LongTermDebtAndCapitalLeaseObligationsMaturitiesRepaymentsOfPrincipalAfterYearFive  
Total debt $ 6,184,104us-gaap_DebtAndCapitalLeaseObligations $ 3,127,789us-gaap_DebtAndCapitalLeaseObligations