XML 64 R62.htm IDEA: XBRL DOCUMENT v2.4.1.9
Fair Value Measurements (Fair Value Of Long Term Debt) (Details) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, carrying value $ 565,754,000us-gaap_DebtInstrumentCarryingAmount  
Unamortized debt discount (19,456,000)us-gaap_DebtInstrumentUnamortizedDiscount (20,900,000)us-gaap_DebtInstrumentUnamortizedDiscount
Term Loan Maturing June 2018 [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, carrying value 273,750,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_LongtermDebtTypeAxis
= hlx_TermLoanMaturingJune2018Member		 277,500,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_LongtermDebtTypeAxis
= hlx_TermLoanMaturingJune2018Member
Long-term debt, fair value 271,355,000us-gaap_LongTermDebtFairValue
/ us-gaap_LongtermDebtTypeAxis
= hlx_TermLoanMaturingJune2018Member		 [1] 270,563,000us-gaap_LongTermDebtFairValue
/ us-gaap_LongtermDebtTypeAxis
= hlx_TermLoanMaturingJune2018Member		 [1]
Convertible Senior Notes (Matures March 2032) [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, carrying value 200,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_LongtermDebtTypeAxis
= hlx_ConvertibleSeniorNotesMaturingMarchTwoThousandAndThirtyTwoMember		 [2] 200,000,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_LongtermDebtTypeAxis
= hlx_ConvertibleSeniorNotesMaturingMarchTwoThousandAndThirtyTwoMember		 [2]
Long-term debt, fair value 199,750,000us-gaap_LongTermDebtFairValue
/ us-gaap_LongtermDebtTypeAxis
= hlx_ConvertibleSeniorNotesMaturingMarchTwoThousandAndThirtyTwoMember		 [1],[2] 222,900,000us-gaap_LongTermDebtFairValue
/ us-gaap_LongtermDebtTypeAxis
= hlx_ConvertibleSeniorNotesMaturingMarchTwoThousandAndThirtyTwoMember		 [1],[2]
MARAD Debt [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, carrying value 92,004,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_LongtermDebtTypeAxis
= hlx_MaradDebtMember		 94,792,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_LongtermDebtTypeAxis
= hlx_MaradDebtMember
Long-term debt, fair value 98,716,000us-gaap_LongTermDebtFairValue
/ us-gaap_LongtermDebtTypeAxis
= hlx_MaradDebtMember		 [1] 104,830,000us-gaap_LongTermDebtFairValue
/ us-gaap_LongtermDebtTypeAxis
= hlx_MaradDebtMember		 [1]
Loan Notes [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Long-term debt, carrying value 565,754,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_LongtermDebtTypeAxis
= hlx_LoanNotesMember		 572,292,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_LongtermDebtTypeAxis
= hlx_LoanNotesMember
Long-term debt, fair value $ 569,821,000us-gaap_LongTermDebtFairValue
/ us-gaap_LongtermDebtTypeAxis
= hlx_LoanNotesMember		 [1] $ 598,293,000us-gaap_LongTermDebtFairValue
/ us-gaap_LongtermDebtTypeAxis
= hlx_LoanNotesMember		 [1]
[1] The estimated fair value of the 2032 Notes was determined using Level 1 inputs using the market approach. The fair value of the Term Loan and the MARAD Debt was estimated using Level 2 fair value inputs under the market approach. The fair value of the Term Loan and the MARAD Debt was determined using a third party evaluation of the remaining average life and outstanding principal balance of the indebtedness as compared to other obligations in the marketplace with similar terms.
[2] Carrying amount excludes the related unamortized debt discount of $19.5 million at March 31, 2015 and $20.9 million at December 31, 2014.