Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
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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=79982066&loc=d3e1392-128463

+ Details

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- Definition

The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3213-108585

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

Name:	us-gaap_BusinessAcquisitionAxis=gtls_VCTVogelGmbHMember
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Balance Type:
Period Type:

Business Combinations - VCT Vogel GmbH (Details) € in Millions, $ in Millions			6 Months Ended
	Aug. 31, 2017 USD ($)	Aug. 31, 2017 EUR (€)	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)
Business Acquisition
Payment for acquisition of businesses, net of cash acquired			$ 12.5	$ 23.2
VCT Vogel GmbH
Business Acquisition
Voting percentage acquired	100.00%	100.00%
Payment for acquisition of businesses, net of cash acquired	$ 4.2	€ 3.6