XML 25 R78.htm IDEA: XBRL DOCUMENT v2.4.1.9
Note 10 - Derivative Financial Instruments (Details) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Sep. 30, 2014
Sep. 30, 2013
Jul. 31, 2013
Debt Instrument [Line Items]            
Gain (Loss) on Foreign Currency Derivatives Recorded in Earnings, Net $ 100,000us-gaap_GainLossOnForeignCurrencyDerivativesRecordedInEarningsNet $ 100,000us-gaap_GainLossOnForeignCurrencyDerivativesRecordedInEarningsNet $ 100,000us-gaap_GainLossOnForeignCurrencyDerivativesRecordedInEarningsNet      
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax       (23,400,000)us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax 600,000us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax  
Derivative, Variable Interest Rate 2.21%us-gaap_DerivativeVariableInterestRate          
Derivative, Fixed Interest Rate Percentage 0.87%us-gaap_DerivativeFixedInterestRate         0.87%us-gaap_DerivativeFixedInterestRate
2011 Interest Rate Swap [Member]            
Debt Instrument [Line Items]            
Derivative Asset, Notional Amount           83,000,000us-gaap_DerivativeAssetNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= aegn_A2011InterestRateSwapMember
2013 Interest Rate Swap [Member]            
Debt Instrument [Line Items]            
Derivative Asset, Notional Amount           175,000,000us-gaap_DerivativeAssetNotionalAmount
/ us-gaap_DerivativeInstrumentRiskAxis
= aegn_A2013InterestRateSwapMember
Cash Flow Hedging [Member]            
Debt Instrument [Line Items]            
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax 100,000us-gaap_AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax
/ us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis
= us-gaap_CashFlowHedgingMember
         
2013 Credit Facility [Member]            
Debt Instrument [Line Items]            
Derivative, Amount of Hedged Item           175,000,000us-gaap_DerivativeAmountOfHedgedItem
/ us-gaap_DebtInstrumentAxis
= aegn_A2013CreditFacilityMember
Secured Debt $ 319,375,000us-gaap_SecuredDebt
/ us-gaap_DebtInstrumentAxis
= aegn_A2013CreditFacilityMember
$ 341,250,000us-gaap_SecuredDebt
/ us-gaap_DebtInstrumentAxis
= aegn_A2013CreditFacilityMember
      350,000,000us-gaap_SecuredDebt
/ us-gaap_DebtInstrumentAxis
= aegn_A2013CreditFacilityMember