Date the amended term for the Employee Stock Purchase Plan is scheduled to end.

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Employee Stock Purchase Plan, Purchase Price of Shares

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Date the amended term for the Employee Stock Purchase Plan commenced.

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Number Of New Employees To Whom PAY.ON RSAs were granted.

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Percentage of restricted share awards that vest on each anniversary date from the date of grant.

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Share Based Compensation Arrangement by Share Based Payment Award, Equity Instruments Other Than Options, Grant Date

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The highest dollar amount from their salary that an employee is permitted to utilize with respect to the plan.

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Share based Compensation Arrangement by Share based Payment Award, Number of Shares Authorized, Prior to Amendment

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Extension of the term of the employee stock purchase plan.

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Minimum percentage of common stock price to grant date price of stock options to trigger vesting.

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If an employee is terminated without cause within 12 months of the acquisition date of S1 Corporation the Transaction RSAs 100% vest.

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The maximum percentage that can be achieved under the predetermined performance thresholds for the performance based restricted share awards.

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The expected attainment percentage for the LTIP Performance Shares based upon forecasted sales and operating income.

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The maximum percentage that can be achieved under the predetermined performance thresholds for the LTIP performance shares.

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The percentage of outstanding stock options expected to vest over the remaining vesting period.

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Threshold period of specified consecutive trading days within which common stock price to grant date price of options must exceed threshold percentage for a specified number of trading days to vesting, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of vesting tranches for share based compensation awards with share-price and service vesting requirements.

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Expiration date month and year of company stock incentive plan.

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-Paragraph 1
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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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Disclosure of the aggregate tax benefit realized from the exercise of stock options and the conversion of similar instruments during the annual period.

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The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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General descriptive information regarding an arrangement under which employees and directors receive: (a) awards of equity shares, equity share options, or other equity instruments; or (b) the entity incurs liabilities to them: (1) in amounts based, at least in part, on the price of the entity's shares or other equity instruments; or (2) that require or may require settlement by issuance of the entity's shares. Such an arrangement is usually provided to employees and directors to compensate them, provide performance incentives to them, and to attract or retain their services. May also include pertinent information particular to a plan that is not elsewhere specified in the taxonomy.

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Discount rate from fair value on offering date that participants pay for shares.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Percentage of vesting of share-based compensation awards.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average grant-date fair value of options vested.

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Purchase price of common stock expressed as a percentage of its fair value.

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For net-share settlement of share-based awards when the employer settles employees' income tax withholding obligations, this element represents the number of shares the employees use to repay the employer.

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Number of shares issued during the period as a result of an employee stock purchase plan.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 2
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Stock-Based Compensation Plans - Additional Information (Detail)			3 Months Ended				12 Months Ended
	Sep. 15, 2015	Jul. 24, 2007 shares	Sep. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2015 USD ($) Tranche Employee $ / shares shares	Dec. 31, 2014 USD ($) $ / shares shares	Dec. 31, 2013 USD ($) $ / shares shares	Jun. 14, 2012 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued under ESPP							162,058	154,223	128,568
Stock-based compensation expense \| $							$ 18,380,000	$ 11,045,000	$ 13,572,000
Employee stock purchase plan, amended plan start date		May 01, 2008
Employee stock purchase plan, amended plan end date		Apr. 30, 2018
Employee stock purchase plan term		10 years
Term of outstanding options							6 years 3 months 7 days
Incentive plan, percentage of options expected to vest over the vesting period							93.00%
Incentive plan, weighted-average grant date fair value of stock options granted \| $ / shares							$ 6.49	$ 9.02	$ 8.72
Incentive plan, total intrinsic value of stock options exercised \| $							$ 12,400,000	$ 22,800,000	$ 25,500,000
Expected dividend yield							0.00%
Dividend paid \| $ / shares							$ 0
Number of tranches \| Tranche							3
Stock-based compensation expenses tax benefits \| $							$ 6,900,000	4,200,000	5,200,000
Proceeds from exercises of stock options \| $							12,175,000	16,461,000	19,561,000
Actual tax benefit realized from tax deductions of option exercises \| $							$ 4,600,000	$ 8,600,000	$ 9,700,000
Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, trading price percentage							133.00%
Consecutive trading days							20 days
Share-based compensation, vested grant date fair value \| $ / shares							$ 8.01
Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, trading price percentage							167.00%
Consecutive trading days							20 days
Share-based compensation, vested grant date fair value \| $ / shares							$ 7.56
Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, trading price percentage							200.00%
Consecutive trading days							20 days
Share-based compensation, vested grant date fair value \| $ / shares							$ 7.00
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation costs \| $							$ 9,600,000
Unrecognized compensation costs, weighted-average recognition periods							1 year 10 months 24 days
Restricted share awards (RSAs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted requisite service period							3 years	3 years	3 years
Restricted share awards, vesting increments on anniversary dates of grants							33.00%	33.00%	33.00%
Restricted shares awards, shares vested							158,973	66,670	88,638
Restricted shares withheld to pay employees' portion of minimum payroll withholding taxes							25,235	26,461	31,746
Unrecognized compensation costs \| $							$ 1,800,000
Unrecognized compensation costs, weighted-average recognition periods							1 year 2 months 12 days
Restricted share awards (RSAs) [Member] \| S1 Corporation [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted requisite service period							4 years
Restricted share awards, vesting increments on anniversary dates of grants							25.00%
Vesting percentage if employee is terminated without cause within 12 months from acquisition date							100.00%
Original grant date							Nov. 09, 2011
Restricted share awards (RSAs) [Member] \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted requisite service period							3 years
Restricted share awards, vesting increments on anniversary dates of grants							33.00%
Restricted share awards (RSAs) [Member] \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted requisite service period							4 years
Restricted share awards, vesting increments on anniversary dates of grants							25.00%
2012 Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected attainment level for the awards granted, percentage							0.00%
2012 Grant \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected attainment level for the awards granted, percentage					0.00%
2012 Grant \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected attainment level for the awards granted, percentage					100.00%
PAY.ON Restricted Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted requisite service period							2 years
Restricted share awards, vesting increments on anniversary dates of grants							25.00%
Number of employees to whom awards issued \| Employee							2
Performance-Based Restricted Share Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	1 year 3 months 18 days
Unrecognized compensation costs \| $							$ 14,400,000
Unrecognized compensation costs, weighted-average recognition periods							1 year 4 months 24 days
Performance-Based Restricted Share Awards \| Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period							3 years
Award vesting percentage for each year							33.00%
Threshold level percentage for share awards							150.00%
Award grants assuming percentage							100.00%
Performance-Based Restricted Share Awards \| Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage for each year							33.00%
Performance-Based Restricted Share Awards \| Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage for each year							33.00%
2010 Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected attainment level for the awards granted, percentage					136.00%
2010 Grant \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected attainment level for the awards granted, percentage						130.00%
2010 Grant \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected attainment level for the awards granted, percentage						175.00%
2013 Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected attainment level for the awards granted, percentage					75.00%
2013 Grant \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected attainment level for the awards granted, percentage			0.00%
2013 Grant \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected attainment level for the awards granted, percentage			75.00%
2011 Grant \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected attainment level for the awards granted, percentage				91.00%
2011 Grant \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected attainment level for the awards granted, percentage				100.00%
2015 Grant
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected attainment level for the awards granted, percentage							100.00%
2005 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized		15,000,000								23,250,000
Employee stock purchase plan term							10 years
Shares of common stock reserved for issuance prior to amendment							9,000,000
2005 Stock Incentive Plan \| Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, trading price percentage							133.00%
Consecutive trading days							20 days
2005 Stock Incentive Plan \| Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, trading price percentage							167.00%
Consecutive trading days							20 days
2005 Stock Incentive Plan \| Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, trading price percentage							200.00%
Consecutive trading days							20 days
2002 Non-Employee Director Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized							750,000
Stock option expiration period							2005-03
Term of outstanding options							10 years
1999 Stock Option Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized							12,000,000
Stock option expiration period							2009-02
Term of outstanding options							10 years
1999 Stock Option Plan \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period							3 years
1999 Stock Option Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period							4 years
LTIP Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum attainment percentage that may be achieved for LTIP Performance Shares					20000.00%	20000.00%	20000.00%	20000.00%	20000.00%
Restricted shares awards, shares vested							548,671	635,643	982,728
Restricted shares withheld to pay employees' portion of minimum payroll withholding taxes							196,169	228,279	338,262
Unrecognized compensation costs \| $							$ 11,100,000
Unrecognized compensation costs, weighted-average recognition periods							2 years 3 months 18 days
LTIP Performance Shares [Member] \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period							1 year	1 year	1 year
LTIP Performance Shares [Member] \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period							3 years	3 years	3 years
S1 Corporation 2003 Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted shares awards, shares vested							13,201	19,822	35,598
Restricted shares withheld to pay employees' portion of minimum payroll withholding taxes							3,750	5,980	11,307
Employee Stock Purchase Plan 1999 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized							4,500,000
Permitted designation for purchase of common stock under ESPP							Participating employees are permitted to designate up to the lesser of $25,000, or 10% of their annual base compensation, for the purchase of common stock under the ESPP. Purchases under the ESPP are made one calendar month after the end of each fiscal quarter.
Employee participating annual base compensation designated for purchase of common stock, amount \| $							$ 25,000
Employee participating annual base compensation designated for purchase of common stock, percent							10.00%
Price of common stock purchased under ESPP, description							The price for shares of common stock purchased under the ESPP is 85% of the stock's fair market value on the last business day of the three-month participation period.
Price of common stock purchased under ESPP, percent							85.00%
Discount offered pursuant to ESPP, percentage							15.00%
Stock-based compensation expense \| $							$ 500,000	$ 500,000	$ 300,000