XML 80 R99.htm IDEA: XBRL DOCUMENT v2.4.1.9
Fair Value of Financial Instruments Financial Instruments Carried at Historical Cost(Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Carrying Value $ 1,615,449us-gaap_DebtInstrumentCarryingAmount $ 1,624,712us-gaap_DebtInstrumentCarryingAmount
Fair Value 1,611,559us-gaap_LongTermDebtFairValue 1,621,345us-gaap_LongTermDebtFairValue
United States Term Loan [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Carrying Value 1,407,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= gwr_UnitedStatesTermLoanMember		 1,433,414us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= gwr_UnitedStatesTermLoanMember
Fair Value 1,402,950us-gaap_LongTermDebtFairValue
/ us-gaap_DebtInstrumentAxis
= gwr_UnitedStatesTermLoanMember		 1,429,204us-gaap_LongTermDebtFairValue
/ us-gaap_DebtInstrumentAxis
= gwr_UnitedStatesTermLoanMember
Australian Term Loan [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Carrying Value 133,857us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= gwr_AustralianTermLoanMember		 134,436us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= gwr_AustralianTermLoanMember
Fair Value 133,900us-gaap_LongTermDebtFairValue
/ us-gaap_DebtInstrumentAxis
= gwr_AustralianTermLoanMember		 135,491us-gaap_LongTermDebtFairValue
/ us-gaap_DebtInstrumentAxis
= gwr_AustralianTermLoanMember
Revolving Credit Facility [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Carrying Value 43,187us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_RevolvingCreditFacilityMember		 15,949us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_RevolvingCreditFacilityMember
Fair Value 43,304us-gaap_LongTermDebtFairValue
/ us-gaap_DebtInstrumentAxis
= us-gaap_RevolvingCreditFacilityMember		 15,956us-gaap_LongTermDebtFairValue
/ us-gaap_DebtInstrumentAxis
= us-gaap_RevolvingCreditFacilityMember
Amortizing Notes component of TEUs [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Carrying Value 11,184us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= gwr_TeusAmortizingNoteMember		 21,878us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= gwr_TeusAmortizingNoteMember
Fair Value 11,233us-gaap_LongTermDebtFairValue
/ us-gaap_DebtInstrumentAxis
= gwr_TeusAmortizingNoteMember		 21,698us-gaap_LongTermDebtFairValue
/ us-gaap_DebtInstrumentAxis
= gwr_TeusAmortizingNoteMember
Other debt [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Carrying Value 20,221us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_OtherDebtSecuritiesMember		 19,035us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= us-gaap_OtherDebtSecuritiesMember
Fair Value $ 20,172us-gaap_LongTermDebtFairValue
/ us-gaap_DebtInstrumentAxis
= us-gaap_OtherDebtSecuritiesMember		 $ 18,996us-gaap_LongTermDebtFairValue
/ us-gaap_DebtInstrumentAxis
= us-gaap_OtherDebtSecuritiesMember