XML 56 R34.htm IDEA: XBRL DOCUMENT v2.4.1.9
Indebtedness - Senior Secured Notes (Details) (USD $)
In Thousands, unless otherwise specified
0 Months Ended
Mar. 18, 2011
Apr. 03, 2015
Dec. 31, 2014
Debt Instrument [Line Items]      
Subsidiary ownership percentage   100.00%emax_SubsidiaryOwnershipPercentage  
Current portion of long-term debt   $ 450,012us-gaap_LongTermDebtCurrent $ 4,663us-gaap_LongTermDebtCurrent
Senior notes | Senior Secured Notes (9.50%)      
Debt Instrument [Line Items]      
Debt instrument, interest rate, stated percentage 9.50%us-gaap_DebtInstrumentInterestRateStatedPercentage
/ us-gaap_DebtInstrumentAxis
= emax_SeniorSecuredNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
   
Current portion of long-term debt 375,000us-gaap_LongTermDebtCurrent
/ us-gaap_DebtInstrumentAxis
= emax_SeniorSecuredNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
$ 375,000us-gaap_LongTermDebtCurrent
/ us-gaap_DebtInstrumentAxis
= emax_SeniorSecuredNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
 
Senior notes | Senior Secured Notes (9.50%) | Change of control      
Debt Instrument [Line Items]      
Prepayment redemption price percentages 101.00%emax_PrepaymentRedemptionPricePercentages
/ us-gaap_DebtInstrumentAxis
= emax_SeniorSecuredNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
/ emax_RedemptionScenarioAxis
= emax_ChangeOfControlMember
   
Senior notes | Senior Secured Notes (9.50%) | 2013      
Debt Instrument [Line Items]      
Prepayment redemption price percentages 107.125%emax_PrepaymentRedemptionPricePercentages
/ us-gaap_DebtInstrumentAxis
= emax_SeniorSecuredNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
/ emax_PrepaymentDateAxis
= emax_TwentyThirteenMember
   
Senior notes | Senior Secured Notes (9.50%) | 2014      
Debt Instrument [Line Items]      
Prepayment redemption price percentages 104.75%emax_PrepaymentRedemptionPricePercentages
/ us-gaap_DebtInstrumentAxis
= emax_SeniorSecuredNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
/ emax_PrepaymentDateAxis
= emax_TwentyFourteenMember
   
Senior notes | Senior Secured Notes (9.50%) | 2015 and thereafter      
Debt Instrument [Line Items]      
Prepayment redemption price percentages 100.00%emax_PrepaymentRedemptionPricePercentages
/ us-gaap_DebtInstrumentAxis
= emax_SeniorSecuredNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SeniorNotesMember
/ emax_PrepaymentDateAxis
= emax_TwentyFifteenAndThereafterMember
   
Line of credit | Senior Secured Notes (9.50%)      
Debt Instrument [Line Items]      
Foreign restricted subsidiaries, percent of voting capital stock, collateral 65.00%emax_ForeignRestrictedSubsidiariesPercentOfVotingCapitalStockCollateral
/ us-gaap_DebtInstrumentAxis
= emax_SeniorSecuredNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
   
Foreign restricted subsidiaries, percent of non-voting capital stock, collateral 100.00%emax_ForeignRetrictedSubsidiariesPercentOfNonVotingCapitalStockCollateral
/ us-gaap_DebtInstrumentAxis
= emax_SeniorSecuredNotesMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember