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Effective Income Tax Reconciliation (Parenthetical) (Detail) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Income Tax Rate Reconciliation [Line Items]      
Basic earnings per share amounts of the benefit resulting from the "Approved and Privileged Enterprise" status $ 0.22chkp_BasicEarningsPerSharesAmountResultingFromIssuanceOfStatus $ 0.24chkp_BasicEarningsPerSharesAmountResultingFromIssuanceOfStatus $ 0.24chkp_BasicEarningsPerSharesAmountResultingFromIssuanceOfStatus
Diluted earnings per share amounts of the benefit resulting from the "Approved and Privileged Enterprise" status $ 0.22chkp_DilutedEarningsPerSharesAmountResultingFromIssuanceOfStatus $ 0.24chkp_DilutedEarningsPerSharesAmountResultingFromIssuanceOfStatus $ 0.23chkp_DilutedEarningsPerSharesAmountResultingFromIssuanceOfStatus