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Commitment and Contingencies (Details) $ in Millions	3 Months Ended
	Mar. 31, 2018 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Anticipated additional warranty reserve (less than)	$ 5.0

X

- Definition

Anticipated Reserve for Standard Warranty

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

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