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Pay vs Performance Disclosure - USD ($) | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Pay vs Performance Disclosure [Table] |  |  |  |  |  |
Pay vs Performance [Table Text Block] |  | # 2023 Pay versus Performance ### Pay versus Performance Table The following table contains additional compensation information of our current and former CEO (“CEO”) and non-CEO named executive officers (“NEOs”), along with total shareholder return (“TSR”), net income, and company-selected revenue measure results for our fiscal years ending in 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. Revenue
Year(1) | Summary Comp. Table Total for CEO | Comp. Actually Paid to CEO(2)(3) | Avg Summary Comp. Table Total for Non-CEO NEOs | Avg Comp. Actually Paid to Non-CEO NEOs(2)(3) | Value of Initial Fixed $100 Investment Based On: |  | GAAP Net Income | Company Selected Measure “Revenue”
Company TSR(5) | Peer Group TSR(5)
2023* | $ | 7,996,250 | $ | 6,919,681(4) | $ | 2,506,998 | $ | 5,183,634(4) | $ | 185.34 | $ | 59.29 |  | $ | 66,246,000 | $ | 1,169,258,000
2022 |  | 7,515,960 |  | 7,019,416 |  | 2,404,372 | $ | 2,523,657 |  | 117.44 |  | 73.35 |  | $ | 44,060,000 |  | 1,089,752,000
2021 |  | 5,763,015 |  | 8,680,195 |  | 1,812,850 |  | 2,630,957 |  | 116.15 |  | 113.19 |  |  | 72,331,000 |  | 1,046,487,000
2020 |  | 14,037,609 |  | 8,821,747 |  | 3,049,302 |  | 3,155,018 |  | 89.00 |  | 140.11 |  |  | 58,711,000 |  | 990,533,000
* |  | 2023 compensation figures assume Annual Performance Bonus at 114.2% of target, year-end stock price of $53.21 per share, 2023 LTIP TSR of $54.44 per share, and prior year 2022 LTIP rTSR of $54.35 per share as of December 31, 2023.
(1) | NEOs included in the above table are as follows:
| Year | CEO |  | Non-CEO NEOs
| 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
| (2) | Fair Market Value (FMV) or change in fair value, as applicable, of equity awards was determined by reference to: (1) for restricted stock awards (excluding awards and other performance-based awards), closing price on applicable year-end date(s) or, in the case of vesting dates, the actual vesting price; (2) for performance-based restricted stock awards (excluding TSR awards), the same valuation methodology as restricted stock awards above except year-end values are multiplied by the probability of achievement as of each such date; (3) for TSR awards, the fair value calculated by a Monte Carlo simulation model as of the applicable year-end date(s), and in all cases based on volatility and risk free rates determined as of the revaluation date based on the expected life period and based on an expected dividend rate of 0%.
| (3) | For the portion of compensation that is based on year-end stock prices, the following prices were used: (1) 2023 $53.21 (7.0% reduction from prior year); (2) 2022 $57.20 (0.7% reduction from prior year); (3) 2021 $57.62 (27.8% increase from prior year); and (4) 2020 $45.07 (13.0% reduction from prior year).
(4) | 2023 compensation reflects the following adjustments from Total Compensation reported in the 2023 Summary Compensation Table:
(5) | Company TSR and our Standard Industrial Classification (“SIC”) Code Index: Computer Processing and Data Preparation and Processing Services, is as reflected in our 2023 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.
* 2023 compensation figures assume Annual Performance Bonus at 114.2% of target, year-end stock price of $53.21 per share, 2023 LTIP TSR of $54.44 per share, and prior year 2022 LTIP rTSR of $54.35 per share as of December 31, 2023.
(1) | NEOs included in the above table are as follows:
| Year | CEO |  | Non-CEO NEOs
| 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
| (2) | Fair Market Value (FMV) or change in fair value, as applicable, of equity awards was determined by reference to: (1) for restricted stock awards (excluding awards and other performance-based awards), closing price on applicable year-end date(s) or, in the case of vesting dates, the actual vesting price; (2) for performance-based restricted stock awards (excluding TSR awards), the same valuation methodology as restricted stock awards above except year-end values are multiplied by the probability of achievement as of each such date; (3) for TSR awards, the fair value calculated by a Monte Carlo simulation model as of the applicable year-end date(s), and in all cases based on volatility and risk free rates determined as of the revaluation date based on the expected life period and based on an expected dividend rate of 0%.
| (3) | For the portion of compensation that is based on year-end stock prices, the following prices were used: (1) 2023 $53.21 (7.0% reduction from prior year); (2) 2022 $57.20 (0.7% reduction from prior year); (3) 2021 $57.62 (27.8% increase from prior year); and (4) 2020 $45.07 (13.0% reduction from prior year).
(4) | 2023 compensation reflects the following adjustments from Total Compensation reported in the 2023 Summary Compensation Table:
|  | CEO |  | Average Non-CEO NEO
| Total Reported in 2023 Summary Compensation Table (SCT) | $ | 7,996,250 |  | $ | 2,506,998
| Less, Value of Stock Awards Reported in SCT |  | (5,700,333) |  |  | 1,574,514
| Plus, Year-End Value of Awards Granted in Fiscal Year that are Unvested and Outstanding |  | 5,707,711 |  |  | 1,576,552
| Plus, Change in Fair Value of any Prior Year Awards that are Outstanding and Unvested |  | (1,148,168) |  |  | (572,883)
| Plus, FMV of Awards Granted this Year and that Vested this Year |  | - |  |  | -
| Plus, Change in Fair Value (from Prior Year-End) of any Prior Year Awards that Vested this Year |  | 64,221 |  |  | 98,453
| Less, Prior Year Fair Value of Prior Year awards that Failed to Vest this Year |  | - |  |  | -
| TOTAL ADJUSTMENTS |  | (1,076,569) |  |  | 2,676,636
| Compensation Actually Paid for Fiscal Year 2023 | $ | 6,919,681 |  | $ | 5,183,634
(5) | Company TSR and our Standard Industrial Classification (“SIC”) Code Index: Computer Processing and Data Preparation and Processing Services, is as reflected in our 2023 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.
Company Selected Measure Name |  | Revenue |  |  |  |
Named Executive Officers, Footnote [Text Block] |  |
(1) | NEOs included in the above table are as follows:
| Year | CEO |  | Non-CEO NEOs
| 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
Peer Group Issuers, Footnote [Text Block] |  | Company TSR and our Standard Industrial Classification (“SIC”) Code Index: Computer Processing and Data Preparation and Processing Services, is as reflected in our 2023 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. |  |  |  |
PEO Total Compensation Amount |  | $ 7,996,250 | [1] | $ 7,515,960 | $ 5,763,015 | $ 14,037,609
PEO Actually Paid Compensation Amount | [3],[4] | $ 6,919,681 | [1],[2] | 7,019,416 | 8,680,195 | 8,821,747
Adjustment To PEO Compensation, Footnote [Text Block] |  |
(4) | 2023 compensation reflects the following adjustments from Total Compensation reported in the 2023 Summary Compensation Table:
|  | CEO |  | Average Non-CEO NEO
| Total Reported in 2023 Summary Compensation Table (SCT) | $ | 7,996,250 |  | $ | 2,506,998
| Less, Value of Stock Awards Reported in SCT |  | (5,700,333) |  |  | 1,574,514
| Plus, Year-End Value of Awards Granted in Fiscal Year that are Unvested and Outstanding |  | 5,707,711 |  |  | 1,576,552
| Plus, Change in Fair Value of any Prior Year Awards that are Outstanding and Unvested |  | (1,148,168) |  |  | (572,883)
| Plus, FMV of Awards Granted this Year and that Vested this Year |  | - |  |  | -
| Plus, Change in Fair Value (from Prior Year-End) of any Prior Year Awards that Vested this Year |  | 64,221 |  |  | 98,453
| Less, Prior Year Fair Value of Prior Year awards that Failed to Vest this Year |  | - |  |  | -
| TOTAL ADJUSTMENTS |  | (1,076,569) |  |  | 2,676,636
| Compensation Actually Paid for Fiscal Year 2023 | $ | 6,919,681 |  | $ | 5,183,634
Non-PEO NEO Average Total Compensation Amount |  | $ 2,506,998 | [1] | 2,404,372 | 1,812,850 | 3,049,302
Non-PEO NEO Average Compensation Actually Paid Amount | [3],[4] | $ 5,183,634 | [1],[2] | 2,523,657 | 2,630,957 | 3,155,018
Adjustment to Non-PEO NEO Compensation Footnote [Text Block] |  |
(4) | 2023 compensation reflects the following adjustments from Total Compensation reported in the 2023 Summary Compensation Table:
|  | CEO |  | Average Non-CEO NEO
| Total Reported in 2023 Summary Compensation Table (SCT) | $ | 7,996,250 |  | $ | 2,506,998
| Less, Value of Stock Awards Reported in SCT |  | (5,700,333) |  |  | 1,574,514
| Plus, Year-End Value of Awards Granted in Fiscal Year that are Unvested and Outstanding |  | 5,707,711 |  |  | 1,576,552
| Plus, Change in Fair Value of any Prior Year Awards that are Outstanding and Unvested |  | (1,148,168) |  |  | (572,883)
| Plus, FMV of Awards Granted this Year and that Vested this Year |  | - |  |  | -
| Plus, Change in Fair Value (from Prior Year-End) of any Prior Year Awards that Vested this Year |  | 64,221 |  |  | 98,453
| Less, Prior Year Fair Value of Prior Year awards that Failed to Vest this Year |  | - |  |  | -
| TOTAL ADJUSTMENTS |  | (1,076,569) |  |  | 2,676,636
| Compensation Actually Paid for Fiscal Year 2023 | $ | 6,919,681 |  | $ | 5,183,634
Compensation Actually Paid vs. Total Shareholder Return [Text Block] |  |
(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 versus 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 vs. Company Selected Measure [Text Block] |  |  |  |  |  |
Total Shareholder Return Vs Peer Group [Text Block] |  |
(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 versus 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 2023, as further described and defined in Compensation Discussion and Analysis under 2023 Financial Achievements.
MOST IMPORTANT PERFORMANCE MEASURES FOR 2023
■ Revenue
■ Revenue Less Transaction Fees
■ Non-GAAP Adjusted Operating Margin Percentage
■ Non-GAAP Earnings Per Share
■ TSR
Total Shareholder Return Amount | [5] | $ 185.34 | [1] | 117.44 | 116.15 | 89.00
Peer Group Total Shareholder Return Amount | [5] | 59.29 | [1] | 73.35 | 113.19 | 140.11
Net Income (Loss) Attributable to Parent |  | $ 66,246,000 | [1] | $ 44,060,000 | $ 72,331,000 | $ 58,711,000
Company Selected Measure Amount |  | 1,169,258,000 | [1] | 1,089,752,000 | 1,046,487,000 | 990,533,000
PEO Name |  | Brian Shepherd |  | Brian Shepherd | Brian Shepherd | Bret Griess
Measure [Axis]: 1 |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |
Measure Name |  | 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 |  |  |  |
PEO [Member] |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |
Adjustment to Compensation Amount |  | $ (1,076,569) |  |  |  |
PEO [Member] | Less, Value of Stock Awards Reported in SCT |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |
Adjustment to Compensation Amount |  | (5,700,333) |  |  |  |
PEO [Member] | Plus, Year-End Value of Awards Granted in Fiscal Year that are Unvested and Outstanding |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |
Adjustment to Compensation Amount |  | 5,707,711 |  |  |  |
PEO [Member] | Plus, Change in Fair Value of any Prior Year Awards that are Outstanding and Unvested |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |
Adjustment to Compensation Amount |  | (1,148,168) |  |  |  |
PEO [Member] | Plus, FMV of Awards Granted this Year and that Vested this Year |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |
Adjustment to Compensation Amount |  |  |  |  |  |
PEO [Member] | Plus, Change in Fair Value (from Prior Year-End) of any Prior Year Awards that Vested this Year |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |
Adjustment to Compensation Amount |  | 64,221 |  |  |  |
PEO [Member] | Less, Prior Year Fair Value of Prior Year awards that Failed to Vest this Year |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |
Adjustment to Compensation Amount |  |  |  |  |  |
Non-PEO NEO [Member] |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |
Adjustment to Compensation Amount |  | 2,676,636 |  |  |  |
Non-PEO NEO [Member] | Less, Value of Stock Awards Reported in SCT |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |
Adjustment to Compensation Amount |  | 1,574,514 |  |  |  |
Non-PEO NEO [Member] | Plus, Year-End Value of Awards Granted in Fiscal Year that are Unvested and Outstanding |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |
Adjustment to Compensation Amount |  | 1,576,552 |  |  |  |
Non-PEO NEO [Member] | Plus, Change in Fair Value of any Prior Year Awards that are Outstanding and Unvested |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |
Adjustment to Compensation Amount |  | (572,883) |  |  |  |
Non-PEO NEO [Member] | Plus, FMV of Awards Granted this Year and that Vested this Year |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |
Adjustment to Compensation Amount |  |  |  |  |  |
Non-PEO NEO [Member] | Plus, Change in Fair Value (from Prior Year-End) of any Prior Year Awards that Vested this Year |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |
Adjustment to Compensation Amount |  | 98,453 |  |  |  |
Non-PEO NEO [Member] | Less, Prior Year Fair Value of Prior Year awards that Failed to Vest this Year |  |  |  |  |  |
Pay vs Performance Disclosure [Table] |  |  |  |  |  |
Adjustment to Compensation Amount |  |  |  |  |  |
[1] | 2023 compensation figures assume Annual Performance Bonus at 114.2% of target, year-end stock price of $53.21 per share, 2023 LTIP TSR of $54.44 per share, and prior year 2022 LTIP rTSR of $54.35 per share as of December 31, 2023.
[2] | 2023 compensation reflects the following adjustments from Total Compensation reported in the 2023 Summary Compensation Table:
[3] | Fair Market Value (FMV) or change in fair value, as applicable, of equity awards was determined by reference to: (1) for restricted stock awards (excluding awards and other performance-based awards), closing price on applicable year-end date(s) or, in the case of vesting dates, the actual vesting price; (2) for performance-based restricted stock awards (excluding TSR awards), the same valuation methodology as restricted stock awards above except year-end values are multiplied by the probability of achievement as of each such date; (3) for TSR awards, the fair value calculated by a Monte Carlo simulation model as of the applicable year-end date(s), and in all cases based on volatility and risk free rates determined as of the revaluation date based on the expected life period and based on an expected dividend rate of 0%.
[4] | For the portion of compensation that is based on year-end stock prices, the following prices were used: (1) 2023 $53.21 (7.0% reduction from prior year); (2) 2022 $57.20 (0.7% reduction from prior year); (3) 2021 $57.62 (27.8% increase from prior year); and (4) 2020 $45.07 (13.0% reduction from prior year).
[5] | Company TSR and our Standard Industrial Classification (“SIC”) Code Index: Computer Processing and Data Preparation and Processing Services, is as reflected in our 2023 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.

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