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Geographic Information and Selected Statements of Income Data - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2021 Product
Segment Reporting [Abstract]
Number of main product lines	3

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- Definition

Number Of Product Lines

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No definition available.

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Namespace Prefix:	chkp_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

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