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Summary of Performance Stock Units Award Activity (Detail) (Performance Stock Units PSU)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Performance Stock Units PSU
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Granted 103us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
/ us-gaap_AwardTypeAxis
= chkp_PerformanceStockUnitsPsuMember
Forfeited (9)us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
/ us-gaap_AwardTypeAxis
= chkp_PerformanceStockUnitsPsuMember
Outstanding as of December 31, 94us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
/ us-gaap_AwardTypeAxis
= chkp_PerformanceStockUnitsPsuMember