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Debt And Credit Arrangements Summary of Outstanding Borrowings (Details) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Debt Instrument [Line Items]    
Short-term debt $ 4,903,000us-gaap_ShortTermBorrowings $ 3,280,000us-gaap_ShortTermBorrowings
Debt, Long-term and Short-term, Combined Amount 209,002,000us-gaap_DebtLongtermAndShorttermCombinedAmount 265,155,000us-gaap_DebtLongtermAndShorttermCombinedAmount
Current Maturities Of Long Term Debt Including Short Term Debt 4,903,000gtls_CurrentMaturitiesOfLongTermDebtIncludingShortTermDebt 200,467,000gtls_CurrentMaturitiesOfLongTermDebtIncludingShortTermDebt [1]
Long-term Debt, Excluding Current Maturities 204,099,000us-gaap_LongTermDebtNoncurrent 64,688,000us-gaap_LongTermDebtNoncurrent
Current convertible notes 0us-gaap_ConvertibleDebtCurrent 193,437,000us-gaap_ConvertibleDebtCurrent
Foreign Facilities [Member]    
Debt Instrument [Line Items]    
Short-term debt 4,903,000us-gaap_ShortTermBorrowings
/ us-gaap_DebtInstrumentAxis
= gtls_ForeignFacilitiesMember
3,280,000us-gaap_ShortTermBorrowings
/ us-gaap_DebtInstrumentAxis
= gtls_ForeignFacilitiesMember
Convertible Debt [Member] | Convertible Notes, Due 2018 [Member]    
Debt Instrument [Line Items]    
Long-term Debt, Gross 204,099,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= gtls_ConvertibleNotesDue2018Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
193,437,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= gtls_ConvertibleNotesDue2018Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
Current convertible notes   193,437,000us-gaap_ConvertibleDebtCurrent
/ us-gaap_DebtInstrumentAxis
= gtls_ConvertibleNotesDue2018Member
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_ConvertibleDebtMember
Secured Debt [Member] | Senior Secured Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Long-term Debt, Gross 0us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= gtls_SeniorSecuredRevolvingCreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
 
Secured Debt [Member] | Prior Credit Facility [Member]    
Debt Instrument [Line Items]    
Long-term Debt, Gross   $ 68,438,000us-gaap_DebtInstrumentCarryingAmount
/ us-gaap_DebtInstrumentAxis
= gtls_PriorCreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_SecuredDebtMember
[1] Current maturities included $193,437 current convertible notes at December 31, 2013.