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Taxes On Income - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2010
Operating Loss Carryforwards [Line Items]        
Corporate tax rate 26.50%chkp_CorporateIncomeTaxRate 25.00%chkp_CorporateIncomeTaxRate 25.00%chkp_CorporateIncomeTaxRate  
Minimum obligation to invest during five years period $ 111,000chkp_InvestmentCommitments      
Undistributed earnings of foreign subsidiaries 134,976us-gaap_UndistributedEarningsOfForeignSubsidiaries      
Unrecognized deferred tax liability on undistributed earnings of foreign subsidiaries 24,543us-gaap_DeferredTaxLiabilityNotRecognizedAmountOfUnrecognizedDeferredTaxLiabilityUndistributedEarningsOfForeignSubsidiaries      
Uncertain tax positions interest expense 6,214chkp_InterestExpenseUncertainTaxPositions 20,857chkp_InterestExpenseUncertainTaxPositions 15,032chkp_InterestExpenseUncertainTaxPositions  
Uncertain tax positions accrued interest 9,879chkp_AccruedInterestOnUncertainTaxPositions 4,578chkp_AccruedInterestOnUncertainTaxPositions    
Minimum        
Operating Loss Carryforwards [Line Items]        
Dividend income tax rate   15.00%chkp_TaxRateOnDividends
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
   
Maximum        
Operating Loss Carryforwards [Line Items]        
Dividend income tax rate   20.00%chkp_TaxRateOnDividends
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
   
U S Federal        
Operating Loss Carryforwards [Line Items]        
U.S. federal loss carry forward 581,351us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= chkp_USFederalMember
     
Operating loss carry forward expiration years 2018      
U S State        
Operating Loss Carryforwards [Line Items]        
U.S. federal loss carry forward 135,816us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= chkp_USStateMember
     
U S State | Minimum        
Operating Loss Carryforwards [Line Items]        
Operating loss carry forward expiration years 2015      
U S State | Maximum        
Operating Loss Carryforwards [Line Items]        
Operating loss carry forward expiration years 2024      
Research And Development Tax Credit        
Operating Loss Carryforwards [Line Items]        
U.S. federal loss carry forward $ 15,916us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= chkp_ResearchAndDevelopmentTaxCreditMember
     
Research And Development Tax Credit | Minimum        
Operating Loss Carryforwards [Line Items]        
Operating loss carry forward expiration years 2019      
Research And Development Tax Credit | Maximum        
Operating Loss Carryforwards [Line Items]        
Operating loss carry forward expiration years 2034      
January 1, 2014 thereafter        
Operating Loss Carryforwards [Line Items]        
Enacted effective income tax rate       16.00%chkp_EffectiveIncomeTaxRate
/ us-gaap_TaxPeriodAxis
= chkp_TwoThousandFourteenAndThereafterMember
Two Thousand Twelve        
Operating Loss Carryforwards [Line Items]        
Enacted effective income tax rate       15.00%chkp_EffectiveIncomeTaxRate
/ us-gaap_TaxPeriodAxis
= chkp_TwoThousandTwelveMember
2013        
Operating Loss Carryforwards [Line Items]        
Enacted effective income tax rate       12.50%chkp_EffectiveIncomeTaxRate
/ us-gaap_TaxPeriodAxis
= chkp_TwoThousandThirteenMember