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Business Combinations AirSep Acquisition (Details) (USD $)
 3 Months Ended 12 Months Ended 2 Months Ended 4 Months Ended 8 Months Ended
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Aug. 29, 2013
Dec. 31, 2012
Aug. 29, 2013
Aug. 30, 2012
Dec. 31, 2011
Business Acquisition [Line Items]                                
Goodwill $ 405,522,000us-gaap_Goodwill       $ 398,905,000us-gaap_Goodwill       $ 405,522,000us-gaap_Goodwill $ 398,905,000us-gaap_Goodwill $ 398,941,000us-gaap_Goodwill   $ 398,941,000us-gaap_Goodwill      
Standard Product Warranty Accrual 24,246,000us-gaap_StandardProductWarrantyAccrual       33,827,000us-gaap_StandardProductWarrantyAccrual       24,246,000us-gaap_StandardProductWarrantyAccrual 33,827,000us-gaap_StandardProductWarrantyAccrual 44,486,000us-gaap_StandardProductWarrantyAccrual   44,486,000us-gaap_StandardProductWarrantyAccrual   37,033,000us-gaap_StandardProductWarrantyAccrual 13,181,000us-gaap_StandardProductWarrantyAccrual
Sales 326,061,000us-gaap_SalesRevenueNet 293,841,000us-gaap_SalesRevenueNet 306,810,000us-gaap_SalesRevenueNet 266,240,000us-gaap_SalesRevenueNet 303,767,000us-gaap_SalesRevenueNet 301,757,000us-gaap_SalesRevenueNet [1] 298,266,000us-gaap_SalesRevenueNet [1] 273,648,000us-gaap_SalesRevenueNet [1] 1,192,952,000us-gaap_SalesRevenueNet 1,177,438,000us-gaap_SalesRevenueNet 1,014,152,000us-gaap_SalesRevenueNet          
Operating Income (Loss) 41,612,000us-gaap_OperatingIncomeLoss [2] 40,355,000us-gaap_OperatingIncomeLoss 34,044,000us-gaap_OperatingIncomeLoss 22,146,000us-gaap_OperatingIncomeLoss 39,781,000us-gaap_OperatingIncomeLoss 35,886,000us-gaap_OperatingIncomeLoss 32,979,000us-gaap_OperatingIncomeLoss 27,351,000us-gaap_OperatingIncomeLoss 138,157,000us-gaap_OperatingIncomeLoss 135,997,000us-gaap_OperatingIncomeLoss 121,813,000us-gaap_OperatingIncomeLoss          
Amortization expense                 17,945,000us-gaap_AmortizationOfIntangibleAssets 19,230,000us-gaap_AmortizationOfIntangibleAssets 14,792,000us-gaap_AmortizationOfIntangibleAssets          
AirSep [Member]                                
Business Acquisition [Line Items]                                
Business Acquisition, Percentage of Voting Interests Acquired                             100.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		  
Goodwill                             109,763,000us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		  
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net                             182,450,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		  
Business Acquisition, Purchase Price Allocation, Income Taxes Receivable                             2,800,000gtls_BusinessAcquisitionPurchasePriceAllocationIncomeTaxesReceivable
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		  
Business Acquisition, Preacquisition Contingency, Amount of Settlement                             10,000,000us-gaap_BusinessAcquisitionPreacquisitionContingencyAmountOfSettlement
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		  
Business Acquisition, Fair Value Of Net Assets Acquired Excluding Goodwill                             72,687,000gtls_BusinessAcquisitionFairValueOfNetAssetsAcquiredExcludingGoodwill
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		  
Sales             29,855,000us-gaap_SalesRevenueNet
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		 27,014,000us-gaap_SalesRevenueNet
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		       14,174,000us-gaap_SalesRevenueNet
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		 40,317,000us-gaap_SalesRevenueNet
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		 71,043,000us-gaap_SalesRevenueNet
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		    
Operating Income (Loss)                         4,026,000us-gaap_OperatingIncomeLoss
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		 3,195,000us-gaap_OperatingIncomeLoss
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		    
Business Acquisition, Amortization of Stepped Up Inventory Basis                         3,270,000gtls_BusinessAcquisitionAmortizationOfSteppedUpInventoryBasis
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		 2,638,000gtls_BusinessAcquisitionAmortizationOfSteppedUpInventoryBasis
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		    
Amortization expense                         2,285,000us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		 4,570,000us-gaap_AmortizationOfIntangibleAssets
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		    
Management Retention Expenses and Severance Costs                         1,111,000gtls_ManagementRetentionExpensesandSeveranceCosts
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		 2,726,000gtls_ManagementRetentionExpensesandSeveranceCosts
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		    
Business Combination, Acquisition Related Costs                         $ 1,164,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
/ us-gaap_BusinessAcquisitionAxis
= gtls_AirsepMember		      
[1] During the first and second quarters of 2013, AirSep added sales of $27,014 and $29,855, respectively. During the third quarter of 2013, incremental sales related to AirSep were $14,174.
[2] Includes recovery of $5,003 increasing operating income during the fourth quarter of 2014 from an escrow settlement for alleged breaches of representations and warranties relating to warranty costs (which are in excess of the settlement amount) for certain product lines acquired from AirSep in 2012.