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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 | $ 405,522,000 us-gaap_Goodwill |  |  |  |  | $ 398,905,000 us-gaap_Goodwill |  |  |  |  |  |  | $ 405,522,000 us-gaap_Goodwill | $ 398,905,000 us-gaap_Goodwill | $ 398,941,000 us-gaap_Goodwill |  | $ 398,941,000 us-gaap_Goodwill |  |  |
Standard Product Warranty Accrual | 24,246,000 us-gaap_StandardProductWarrantyAccrual |  |  |  |  | 33,827,000 us-gaap_StandardProductWarrantyAccrual |  |  |  |  |  |  | 24,246,000 us-gaap_StandardProductWarrantyAccrual | 33,827,000 us-gaap_StandardProductWarrantyAccrual | 44,486,000 us-gaap_StandardProductWarrantyAccrual |  | 44,486,000 us-gaap_StandardProductWarrantyAccrual |  | 37,033,000 us-gaap_StandardProductWarrantyAccrual | 13,181,000 us-gaap_StandardProductWarrantyAccrual
Sales | 326,061,000 us-gaap_SalesRevenueNet |  | 293,841,000 us-gaap_SalesRevenueNet | 306,810,000 us-gaap_SalesRevenueNet | 266,240,000 us-gaap_SalesRevenueNet | 303,767,000 us-gaap_SalesRevenueNet | 301,757,000 us-gaap_SalesRevenueNet | [1] | 298,266,000 us-gaap_SalesRevenueNet | [1] | 273,648,000 us-gaap_SalesRevenueNet | [1] | 1,192,952,000 us-gaap_SalesRevenueNet | 1,177,438,000 us-gaap_SalesRevenueNet | 1,014,152,000 us-gaap_SalesRevenueNet |  |  |  |  |
Operating Income (Loss) | 41,612,000 us-gaap_OperatingIncomeLoss | [2] | 40,355,000 us-gaap_OperatingIncomeLoss | 34,044,000 us-gaap_OperatingIncomeLoss | 22,146,000 us-gaap_OperatingIncomeLoss | 39,781,000 us-gaap_OperatingIncomeLoss | 35,886,000 us-gaap_OperatingIncomeLoss |  | 32,979,000 us-gaap_OperatingIncomeLoss |  | 27,351,000 us-gaap_OperatingIncomeLoss |  | 138,157,000 us-gaap_OperatingIncomeLoss | 135,997,000 us-gaap_OperatingIncomeLoss | 121,813,000 us-gaap_OperatingIncomeLoss |  |  |  |  |
Amortization expense |  |  |  |  |  |  |  |  |  |  |  |  | 17,945,000 us-gaap_AmortizationOfIntangibleAssets | 19,230,000 us-gaap_AmortizationOfIntangibleAssets | 14,792,000 us-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 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 109,763,000 us-gaap_Goodwill / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember |
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 182,450,000 us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember |
Business Acquisition, Purchase Price Allocation, Income Taxes Receivable |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,800,000 gtls_BusinessAcquisitionPurchasePriceAllocationIncomeTaxesReceivable / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember |
Business Acquisition, Preacquisition Contingency, Amount of Settlement |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,000,000 us-gaap_BusinessAcquisitionPreacquisitionContingencyAmountOfSettlement / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember |
Business Acquisition, Fair Value Of Net Assets Acquired Excluding Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 72,687,000 gtls_BusinessAcquisitionFairValueOfNetAssetsAcquiredExcludingGoodwill / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember |
Sales |  |  |  |  |  |  |  |  | 29,855,000 us-gaap_SalesRevenueNet / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember |  | 27,014,000 us-gaap_SalesRevenueNet / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember |  |  |  |  | 14,174,000 us-gaap_SalesRevenueNet / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember | 40,317,000 us-gaap_SalesRevenueNet / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember | 71,043,000 us-gaap_SalesRevenueNet / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember |  |
Operating Income (Loss) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,026,000 us-gaap_OperatingIncomeLoss / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember | 3,195,000 us-gaap_OperatingIncomeLoss / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember |  |
Business Acquisition, Amortization of Stepped Up Inventory Basis |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,270,000 gtls_BusinessAcquisitionAmortizationOfSteppedUpInventoryBasis / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember | 2,638,000 gtls_BusinessAcquisitionAmortizationOfSteppedUpInventoryBasis / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember |  |
Amortization expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,285,000 us-gaap_AmortizationOfIntangibleAssets / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember | 4,570,000 us-gaap_AmortizationOfIntangibleAssets / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember |  |
Management Retention Expenses and Severance Costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,111,000 gtls_ManagementRetentionExpensesandSeveranceCosts / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember | 2,726,000 gtls_ManagementRetentionExpensesandSeveranceCosts / us-gaap_BusinessAcquisitionAxis = gtls_AirsepMember |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,164,000 us-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.

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275 + Details
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- Definition Percentage of voting equity interests acquired at the acquisition date in the business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463 + Details
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- Definition Amount paid or received to resolve the preacquisition contingency. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 2 -Section A -Subsection 7 + Details
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- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460 + Details
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- Definition Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=39739317&loc=d3e4845-128472 + Details
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- Definition Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -Subparagraph (c)(1),(c)(5) -URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249 + Details
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