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Pay vs Performance Disclosure - USD ($) | 12 Months Ended | 24 Months Ended | 36 Months Ended | 48 Months Ended | 60 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2021 | Dec. 31, 2022 | Dec. 31, 2023 | Dec. 31, 2024
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure, Table | Pay versus Performance Table The following table contains additional compensation information of our current and former CEOs (“CEO”) and non-CEO NEOs, along with TSR, net income, and company-selected revenue measure results for our fiscal years ending in 2024, 2023, 2022, 2021, and 2020. This disclosure is intended to comply with the SEC rules under item 402(v) and does not necessarily reflect the Company’s approach to aligning compensation with performance. Additional information concerning the Company’s compensation philosophy and how the Company aligns compensation with financial performance can be found in the Compensation Discussion and Analysis.
Year |  | Summary Comp. Table Total for CEO(1) |  | Comp. Actually Paid to CEO(1)(2)(3) |  | Avg Summary Comp. Table Total for Non-CEO NEOs(1) |  | Avg Comp. Actually Paid to Non-CEO NEOs(1)(2)(3) |  | Value of Initial Fixed $100 Investment Based On: |  | GAAP Net Income |  | Company Selected Measure “Revenue”(6)
| Company TSR(5) |  | Peer Group TSR(5) |
2024* |  | $ | 11,394,373 |  | $ | 11,393,677(4) |  | $ | 2,494,418 |  | $ | 2,240,426(4) |  | $ | 110.00 |  | $ | 43.33 |  | $ | 86,852,000 |  | $ | 1,197,248,000
2023 |  |  | 7,996,250 |  |  | 6,919,681 |  | $ | 2,506,998 |  | $ | 2,034,606 |  | $ | 111.64 |  | $ | 39.65 |  | $ | 66,246,000 |  |  | 1,169,258,000
2022 |  |  | 7,515,960 |  |  | 7,019,416 |  |  | 2,404,372 |  |  | 2,523,657 |  |  | 117.44 |  |  | 57.13 |  |  | 44,060,000 |  |  | 1,089,752,000
2021 |  |  | 5,763,015 |  |  | 8,680,195 |  |  | 1,812,850 |  |  | 2,630,957 |  |  | 116.15 |  |  | 111.46 |  |  | 72,331,000 |  |  | 1,046,487,000
2020 |  |  | 14,037,609 |  |  | 8,821,747 |  |  | 3,049,302 |  |  | 3,155,018 |  |  | 89.00 |  |  | 142.13 |  |  | 58,711,000 |  |  | 990,533,000
*2024 compensation figures reflect Annual Performance Bonus payout at 60.3% of target, year-end stock price of $51.11 per share, 2024 LTIP TSR of $50.11 per share, and prior year 2023 LTIP rTSR of $52.23 per share as of December 31, 2024. |  |  |  |  |  |  |  |
Company Selected Measure Name | Revenue |  |  |  |  |  |  |  |
Named Executive Officers, Footnote |
(1) | CEOs & NEOs included in the above table are as follows:
| Year |  | CEO |  | Non-CEO NEOs
| 2024 |  | Brian Shepherd |  | Hai Tran, Elizabeth Bauer, Rasmani Bhattacharya, Michael Woods
| 2023 |  | Brian Shepherd |  | Hai Tran, Elizabeth Bauer, Rasmani Bhattacharya, Kenneth Kennedy
| 2022 |  | Brian Shepherd |  | Hai Tran, Kenneth Kennedy, Elizabeth Bauer, Rasmani Bhattacharya
| 2021 |  | Brian Shepherd |  | Hai Tran, Kenneth Kennedy, Elizabeth Bauer, Rolland Johns
| 2020 |  | Bret Griess |  | Rolland Johns, Kenneth Kennedy, Brian Shepherd
| Brian Shepherd succeeded Bret Griess as CEO, effective January 1, 2021.
Peer Group Issuers, Footnote [Text Block] |
(5) | Our Peer Group for purposes of Pay Versus Performance Disclosures is the Standard Industrial Classification (“SIC”) Code Index: Computer Processing and Data Preparation and Processing Services, is as reflected in our 2024 Form 10-K pursuant to Item 201(e) of Regulation S-K. Each year reflects what the cumulative value of $100 would be, including reinvestment of dividends, if such amount were invested on December 31, 2019, through and including the end of each fiscal year reported in the table.
PEO Total Compensation Amount | $ 11,394,373 | $ 7,996,250 | $ 7,515,960 | $ 5,763,015 | $ 14,037,609 |  |  |  |
PEO Actually Paid Compensation Amount | $ 11,393,677 | 6,919,681 | 7,019,416 | 8,680,195 | 8,821,747 |  |  |  |
Adjustment To PEO Compensation, Footnote |
(4) | 2024 compensation actually paid reflects the following adjustments from Total compensation reported in the 2024 Summary Compensation Table:
|  |  | CEO |  |  | Average Non-CEO NEO |
| Total Reported in 2024 Summary Compensation Table (SCT) |  | $ | 11,394,373 |  |  | $ | 2,494,418 |
| Less, Value of Stock Awards Reported in SCT |  |  | (9,467,733) |  |  |  | (1,613,757) |
| Plus, Year-End Value of Awards Granted in Fiscal Year that are Unvested and Outstanding |  |  | 10,343,334 |  |  |  | 1,535,598 |
| Plus, Difference in Fair Value from the Prior Year-End to the End of this Year of any Prior Year Awards that are Outstanding and Unvested |  |  | (899,163) |  |  |  | (174,932) |
| Plus, Fair Value as of the Vesting Date of Awards Granted this Year and that Vested this Year |  |  | - |  |  |  | - |
| Plus, Difference in Fair Value from Prior Year-End to the Vesting Date of any Prior Year Awards that Vested this Year |  |  | 22,866 |  |  |  | (901) |
| Less, Prior Year-End Fair Value of Prior Year Awards that Failed to Vest this Year |  |  | - |  |  |  | - |
| TOTAL ADJUSTMENTS |  |  | (696) |  |  |  | (253,992) |
| Compensation Actually Paid for Fiscal Year 2024 |  | $ | 11,393,677 |  |  | $ | 2,240,426 |
Non-PEO NEO Average Total Compensation Amount | $ 2,494,418 | 2,506,998 | 2,404,372 | 1,812,850 | 3,049,302 |  |  |  |
Non-PEO NEO Average Compensation Actually Paid Amount | $ 2,240,426 | 2,034,606 | 2,523,657 | 2,630,957 | 3,155,018 |  |  |  |
Adjustment to Non-PEO NEO Compensation Footnote |
(4) | 2024 compensation actually paid reflects the following adjustments from Total compensation reported in the 2024 Summary Compensation Table:
|  |  | CEO |  |  | Average Non-CEO NEO |
| Total Reported in 2024 Summary Compensation Table (SCT) |  | $ | 11,394,373 |  |  | $ | 2,494,418 |
| Less, Value of Stock Awards Reported in SCT |  |  | (9,467,733) |  |  |  | (1,613,757) |
| Plus, Year-End Value of Awards Granted in Fiscal Year that are Unvested and Outstanding |  |  | 10,343,334 |  |  |  | 1,535,598 |
| Plus, Difference in Fair Value from the Prior Year-End to the End of this Year of any Prior Year Awards that are Outstanding and Unvested |  |  | (899,163) |  |  |  | (174,932) |
| Plus, Fair Value as of the Vesting Date of Awards Granted this Year and that Vested this Year |  |  | - |  |  |  | - |
| Plus, Difference in Fair Value from Prior Year-End to the Vesting Date of any Prior Year Awards that Vested this Year |  |  | 22,866 |  |  |  | (901) |
| Less, Prior Year-End Fair Value of Prior Year Awards that Failed to Vest this Year |  |  | - |  |  |  | - |
| TOTAL ADJUSTMENTS |  |  | (696) |  |  |  | (253,992) |
| Compensation Actually Paid for Fiscal Year 2024 |  | $ | 11,393,677 |  |  | $ | 2,240,426 |
Compensation Actually Paid vs. Total Shareholder Return [Text Block] |
Compensation Actually Paid versus Total Shareholder Return
(1) | Total shareholder return in the above chart, in the case of both the Company and our Peer Companies as noted in [footnote 7] of the above Pay for Performance Table, reflects the cumulative return of $100 as if invested on December 31, 2019, including reinvestment of any dividends.
Compensation Actually Paid vs. Net Income [Text Block] |
Compensation Actually Paid versus Net Income
Compensation Actually Paid vs. Company Selected Measure [Text Block] |
Compensation Actually Paid versus Revenue
Total Shareholder Return Vs Peer Group [Text Block] |
Compensation Actually Paid versus Total Shareholder Return
(1) | Total shareholder return in the above chart, in the case of both the Company and our Peer Companies as noted in [footnote 7] of the above Pay for Performance Table, reflects the cumulative return of $100 as if invested on December 31, 2019, including reinvestment of any dividends.
Tabular List [Table Text Block] | Table of Measures Most Important to Last Fiscal Year The following performance measures reflect the Company’s most important performance measures in effect for 2024, as further described and defined in Compensation Discussion and Analysis under 2024 Financial Achievements.
| MOST IMPORTANT PERFORMANCE MEASURES FOR 2024
■ | Revenue
■ | Revenue Less Transaction Fees
■ | Non-GAAP Adjusted Operating Margin Percentage
■ | Non-GAAP Earnings Per Share
■ | TSR
Total Shareholder Return Amount |  |  |  |  | 89.00 | $ 116.15 | $ 117.44 | $ 111.64 | $ 110.00
Peer Group Total Shareholder Return Amount |  |  |  |  | 142.13 | $ 111.46 | $ 57.13 | $ 39.65 | $ 43.33
Net Income (Loss) Attributable to Parent | $ 86,852,000 | $ 66,246,000 | $ 44,060,000 | $ 72,331,000 | $ 58,711,000 |  |  |  |
Company Selected Measure Amount | 1,197,248,000 | 1,169,258,000 | 1,089,752,000 | 1,046,487,000 | 990,533,000 |  |  |  |
PEO Name | Brian Shepherd | Brian Shepherd | Brian Shepherd | Brian Shepherd | Bret Griess |  |  |  |
Measure [Axis]: 1 |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Measure Name | Revenue |  |  |  |  |  |  |  |
Non-GAAP Measure Description [Text Block] |
(6) | Our company-selected measure, which is the measure we believe represents the most important financial performance measure not otherwise presented in the table above that we use to link compensation actually paid to our NEOs for fiscal 2024 to our Company’s performance, is Revenue.
Measure [Axis]: 2 |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Measure Name | Revenue Less Transaction Fees |  |  |  |  |  |  |  |
Measure [Axis]: 3 |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Measure Name | Non-GAAP Adjusted Operating Margin Percentage |  |  |  |  |  |  |  |
Measure [Axis]: 4 |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Measure Name | Non-GAAP Earnings Per Share |  |  |  |  |  |  |  |
Measure [Axis]: 5 |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Measure Name | TSR |  |  |  |  |  |  |  |
Less Value Of Stock Awards Reported In S C T [Member] | PEO [Member] |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Adjustment to Compensation Amount | $ (9,467,733) |  |  |  |  |  |  |  |
Less Value Of Stock Awards Reported In S C T [Member] | Non-PEO NEO [Member] |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Adjustment to Compensation Amount | (1,613,757) |  |  |  |  |  |  |  |
Plus Year End Value Of Awards Granted In Fiscal Year That Are Unvested And Outstanding [Member] | PEO [Member] |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Adjustment to Compensation Amount | 10,343,334 |  |  |  |  |  |  |  |
Plus Year End Value Of Awards Granted In Fiscal Year That Are Unvested And Outstanding [Member] | Non-PEO NEO [Member] |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Adjustment to Compensation Amount | 1,535,598 |  |  |  |  |  |  |  |
Plus Difference In Fair Value From The Prior Year End To The End Of This Year Of Any Prior Year Awards That Are Outstanding And Unvested [Member] | PEO [Member] |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Adjustment to Compensation Amount | (899,163) |  |  |  |  |  |  |  |
Plus Difference In Fair Value From The Prior Year End To The End Of This Year Of Any Prior Year Awards That Are Outstanding And Unvested [Member] | Non-PEO NEO [Member] |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Adjustment to Compensation Amount | (174,932) |  |  |  |  |  |  |  |
Plus Fair Value As Of The Vesting Date Of Awards Granted This Year And That Vested This Year [Member] | PEO [Member] |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Adjustment to Compensation Amount | (0) |  |  |  |  |  |  |  |
Plus Fair Value As Of The Vesting Date Of Awards Granted This Year And That Vested This Year [Member] | Non-PEO NEO [Member] |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Adjustment to Compensation Amount | (0) |  |  |  |  |  |  |  |
Plus Difference In Fair Value From Prior Year End To The Vesting Date Of Any Prior Year Awards That Vested This Year [Member] | PEO [Member] |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Adjustment to Compensation Amount | 22,866 |  |  |  |  |  |  |  |
Plus Difference In Fair Value From Prior Year End To The Vesting Date Of Any Prior Year Awards That Vested This Year [Member] | Non-PEO NEO [Member] |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Adjustment to Compensation Amount | (901) |  |  |  |  |  |  |  |
Less Prior Year End Fair Value Of Prior Year Awards That Failed To Vest This Year [Member] | PEO [Member] |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Adjustment to Compensation Amount | (0) |  |  |  |  |  |  |  |
Less Prior Year End Fair Value Of Prior Year Awards That Failed To Vest This Year [Member] | Non-PEO NEO [Member] |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Adjustment to Compensation Amount | (0) |  |  |  |  |  |  |  |
Total Adjustments [Member] | PEO [Member] |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Adjustment to Compensation Amount | (696) |  |  |  |  |  |  |  |
Total Adjustments [Member] | Non-PEO NEO [Member] |  |  |  |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |  |  |  |
Adjustment to Compensation Amount | $ (253,992) |  |  |  |  |  |  |  |

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