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Condensed Consolidated Statements of Equity (Unaudited) (Parentheticals) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($)
Statement of Stockholders' Equity [Abstract]
Shares repurchase in share repurchase program	$ 19.3

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- Definition

Share Repurchased In Shares Repurchase Program

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No definition available.

+ Details

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Namespace Prefix:	gtls_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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- References

No definition available.

+ Details

Name:	us-gaap_StatementOfStockholdersEquityAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration