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Reportable Segments (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Segment Reporting Information [Line Items]    
Sales $ 245,105us-gaap_Revenues $ 266,240us-gaap_Revenues
Operating Income (Loss) 14,957us-gaap_OperatingIncomeLoss 22,146us-gaap_OperatingIncomeLoss
Energy & Chemicals [Member]    
Segment Reporting Information [Line Items]    
Sales 87,470us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= gtls_EnergyChemicalsMember
86,146us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= gtls_EnergyChemicalsMember
Operating Income (Loss) 15,982us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= gtls_EnergyChemicalsMember
16,607us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= gtls_EnergyChemicalsMember
Distribution & Storage [Member]    
Segment Reporting Information [Line Items]    
Sales 105,071us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= gtls_DistributionStorageMember
129,522us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= gtls_DistributionStorageMember
Operating Income (Loss) 11,275us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= gtls_DistributionStorageMember
18,087us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= gtls_DistributionStorageMember
BioMedical [Member]    
Segment Reporting Information [Line Items]    
Sales 52,564us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= gtls_BiomedicalMember
50,572us-gaap_Revenues
/ us-gaap_StatementBusinessSegmentsAxis
= gtls_BiomedicalMember
Operating Income (Loss) 3,653us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= gtls_BiomedicalMember
2,395us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= gtls_BiomedicalMember
Corporate [Member]    
Segment Reporting Information [Line Items]    
Operating Income (Loss) $ (15,953)us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember
$ (14,943)us-gaap_OperatingIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= us-gaap_CorporateMember