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Pay vs Performance Disclosure | 12 Months Ended
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Dec. 31, 2024 USD ($) $ / $ | Dec. 31, 2023 USD ($) $ / $ | Dec. 31, 2022 USD ($) $ / $ | Dec. 31, 2021 USD ($) $ / $ | Dec. 31, 2020 USD ($)
Pay vs Performance Disclosure |  |  |  |  |
Pay vs Performance Disclosure, Table |
Year | ​ | ​ | Summary Compensation Table Total for PEO(1) | ​ | ​ | Compensation Actually Paid to PEO(2) | ​ | ​ | Average Summary Compensation Table Total for Non-PEO NEOs(3) | ​ | ​ | Average Compensation Actually Paid to Non-PEO NEOs(4) | ​ | ​ | Value of Initial Fixed $100 Investment Based On: | ​ | ​ | Net Income(7) | ​ | ​ | Company- Selected Measure: Revenue(8) | ​
​ | Total Share- holder Return(5) | ​ | ​ | Peer Group Total Share- holder Return(5)(6) | ​
2024 | ​ | ​ | ​ | $ | 5,487,873 | ​ | ​ | ​ | ​ | $ | 6,126,678 | ​ | ​ | ​ | ​ | $ | 2,768,438 | ​ | ​ | ​ | ​ | $ | 3,060,641 | ​ | ​ | ​ | ​ | $ | 67.79 | ​ | ​ | ​ | ​ | $ | 180.45 | ​ | ​ | ​ | ​ | $ | 112,684,000 | ​ | ​ | ​ | ​ | $ | 1,220,907,000 | ​ | ​
2023 | ​ | ​ | ​ | $ | 5,417,738 | ​ | ​ | ​ | ​ | $ | 8,182,401 | ​ | ​ | ​ | ​ | $ | 2,712,155 | ​ | ​ | ​ | ​ | $ | 3,858,985 | ​ | ​ | ​ | ​ | $ | 65.48 | ​ | ​ | ​ | ​ | $ | 121.40 | ​ | ​ | ​ | ​ | $ | 69,791,000 | ​ | ​ | ​ | ​ | $ | 1,143,861,000 | ​ | ​
2022 | ​ | ​ | ​ | $ | 5,468,805 | ​ | ​ | ​ | ​ | $ | 10,041,112 | ​ | ​ | ​ | ​ | $ | 2,810,650 | ​ | ​ | ​ | ​ | $ | 4,730,500 | ​ | ​ | ​ | ​ | $ | 53.93 | ​ | ​ | ​ | ​ | $ | 89.49 | ​ | ​ | ​ | ​ | $ | 46,670,000 | ​ | ​ | ​ | ​ | $ | 1,073,853,000 | ​ | ​
2021 | ​ | ​ | ​ | $ | 6,197,825 | ​ | ​ | ​ | ​ | $ | 1,252,419 | ​ | ​ | ​ | ​ | $ | 2,442,544 | ​ | ​ | ​ | ​ | $ | 596,087 | ​ | ​ | ​ | ​ | $ | 38.41 | ​ | ​ | ​ | ​ | $ | 93.71 | ​ | ​ | ​ | ​ | $ | 55,087,000 | ​ | ​ | ​ | ​ | $ | 1,132,123,000 | ​ | ​
2020 | ​ | ​ | ​ | $ | 4,613,413 | ​ | ​ | ​ | ​ | $ | (1,795,185) | ​ | ​ | ​ | ​ | $ | 2,282,923 | ​ | ​ | ​ | ​ | $ | (158,031) | ​ | ​ | ​ | ​ | $ | 61.22 | ​ | ​ | ​ | ​ | $ | 117.69 | ​ | ​ | ​ | ​ | $ | 86,268,000 | ​ | ​ | ​ | ​ | $ | 1,004,272,000 | ​ | ​
​ (1) In 2024, 2023, 2022, 2021, and 2020, the PEO was Karl McDonnell. ​ (2) The tables below detail the components and amounts included in the “Compensation Actually Paid to PEO”. ​
Year | ​ | ​ | Total from Summary Compensation Table | ​ | ​ | Stock Awards Value from Summary Compensation Table | ​ | ​ | Incremental Equity Award Fair Value Adjustment(a) | ​ | ​ | Total | ​
2024 | ​ | ​ | ​ | $ | 5,487,873 | ​ | ​ | ​ | ​ | $ | (3,250,000) | ​ | ​ | ​ | ​ | $ | 3,888,805 | ​ | ​ | ​ | ​ | $ | 6,126,678 | ​ | ​
2023 | ​ | ​ | ​ | $ | 5,417,738 | ​ | ​ | ​ | ​ | $ | (3,250,000) | ​ | ​ | ​ | ​ | $ | 6,014,663 | ​ | ​ | ​ | ​ | $ | 8,182,401 | ​ | ​
2022 | ​ | ​ | ​ | $ | 5,468,805 | ​ | ​ | ​ | ​ | $ | (3,360,000) | ​ | ​ | ​ | ​ | $ | 7,932,307 | ​ | ​ | ​ | ​ | $ | 10,041,112 | ​ | ​
2021 | ​ | ​ | ​ | $ | 6,197,825 | ​ | ​ | ​ | ​ | $ | (5,000,000) | ​ | ​ | ​ | ​ | $ | 54,594 | ​ | ​ | ​ | ​ | $ | 1,252,419 | ​ | ​
2020 | ​ | ​ | ​ | $ | 4,613,413 | ​ | ​ | ​ | ​ | $ | (3,000,000) | ​ | ​ | ​ | ​ | $ | (3,408,598) | ​ | ​ | ​ | ​ | $ | (1,795,185) | ​ | ​
​ (a) Reflects an adjustment to the grant date fair value of equity-based awards as calculated in accordance with Item 402(v)(2)(iii)(C)(1) and consistent with the fair value methodology reflected in our financial statements for share-based payments. ​ The amounts deducted or added in calculating the equity award adjustments for the “Compensation Actually Paid to PEO” are as follows.
Year | ​ | ​ | Year end fair value of equity awards granted during the year | ​ | ​ | Year over year change in fair value of outstanding and unvested equity awards | ​ | ​ | Year over year change in fair value of equity awards granted in prior years that vested in the year | ​ | ​ | Value of dividends or other earnings paid on stock or option awards not otherwise reflected in fair value or total compensation | ​ | ​ | Total equity award adjustments | ​
2024 | ​ | ​ | ​ | $ | 3,193,936 | ​ | ​ | ​ | ​ | $ | 164,778 | ​ | ​ | ​ | ​ | $ | 71,403 | ​ | ​ | ​ | ​ | $ | 458,688 | ​ | ​ | ​ | ​ | $ | 3,888,805 | ​ | ​
2023 | ​ | ​ | ​ | $ | 3,189,628 | ​ | ​ | ​ | ​ | $ | 2,007,998 | ​ | ​ | ​ | ​ | $ | 391,159 | ​ | ​ | ​ | ​ | $ | 425,878 | ​ | ​ | ​ | ​ | $ | 6,014,663 | ​ | ​
2022 | ​ | ​ | ​ | $ | 5,257,857 | ​ | ​ | ​ | ​ | $ | 2,358,006 | ​ | ​ | ​ | ​ | $ | (121,004) | ​ | ​ | ​ | ​ | $ | 437,448 | ​ | ​ | ​ | ​ | $ | 7,932,307 | ​ | ​
2021 | ​ | ​ | ​ | $ | 3,196,643 | ​ | ​ | ​ | ​ | $ | (3,480,609) | ​ | ​ | ​ | ​ | $ | (16,900) | ​ | ​ | ​ | ​ | $ | 355,460 | ​ | ​ | ​ | ​ | $ | 54,594 | ​ | ​
2020 | ​ | ​ | ​ | $ | 1,955,981 | ​ | ​ | ​ | ​ | $ | (5,765,290) | ​ | ​ | ​ | ​ | $ | 133,807 | ​ | ​ | ​ | ​ | $ | 266,904 | ​ | ​ | ​ | ​ | $ | (3,408,598) | ​ | ​
(3) In 2024, 2023, 2022 and 2021, the Non-PEO NEOs were Robert S. Silberman, Daniel W. Jackson, Lizette B. Herraiz, and Christa E. Hokenson. In 2020, the Non-PEO NEOs were Robert S. Silberman, Daniel W. Jackson, Lizette B. Herraiz, and Andrew E. Watt. ​ (4) The tables below detail the components and amounts included in the “Average Compensation Actually Paid to Non-PEO NEOs”. ​
Year | ​ | ​ | Total from Summary Compensation Table | ​ | ​ | Stock Awards Value from Summary Compensation Table | ​ | ​ | Incremental Equity Award Fair Value Adjustment(a) | ​ | ​ | Total | ​
2024 | ​ | ​ | ​ | $ | 2,768,438 | ​ | ​ | ​ | ​ | $ | (1,812,500) | ​ | ​ | ​ | ​ | $ | 2,104,703 | ​ | ​ | ​ | ​ | $ | 3,060,641 | ​ | ​
2023 | ​ | ​ | ​ | $ | 2,712,155 | ​ | ​ | ​ | ​ | $ | (1,800,000) | ​ | ​ | ​ | ​ | $ | 2,946,830 | ​ | ​ | ​ | ​ | $ | 3,858,985 | ​ | ​
2022 | ​ | ​ | ​ | $ | 2,810,650 | ​ | ​ | ​ | ​ | $ | (1,680,000) | ​ | ​ | ​ | ​ | $ | 3,599,850 | ​ | ​ | ​ | ​ | $ | 4,730,500 | ​ | ​
2021 | ​ | ​ | ​ | $ | 2,442,544 | ​ | ​ | ​ | ​ | $ | (1,750,000) | ​ | ​ | ​ | ​ | $ | (96,457) | ​ | ​ | ​ | ​ | $ | 596,087 | ​ | ​
2020 | ​ | ​ | ​ | $ | 2,282,923 | ​ | ​ | ​ | ​ | $ | (1,350,000) | ​ | ​ | ​ | ​ | $ | (1,090,954) | ​ | ​ | ​ | ​ | $ | (158,031) | ​ | ​
​ (a) Reflects an adjustment to the grant date fair value of equity-based awards as calculated in accordance with Item 402(v)(2)(iii)(C)(1) and consistent with the fair value methodology reflected in our financial statements for share-based payments. ​ The amounts deducted or added in calculating the equity award adjustments for the “Average Compensation Actually Paid to Non-PEO NEOs” are as follows.
Year | ​ | ​ | Year end fair value of equity awards granted during the year | ​ | ​ | Year over year change in fair value of outstanding and unvested equity awards | ​ | ​ | Year over year change in fair value of equity awards granted in prior years that vested in the year | ​ | ​ | Value of dividends or other earnings paid on stock or option awards not otherwise reflected in fair value or total compensation | ​ | ​ | Total equity award adjustments | ​
2024 | ​ | ​ | ​ | $ | 1,781,262 | ​ | ​ | ​ | ​ | $ | 75,638 | ​ | ​ | ​ | ​ | $ | 29,157 | ​ | ​ | ​ | ​ | $ | 218,646 | ​ | ​ | ​ | ​ | $ | 2,104,703 | ​ | ​
2023 | ​ | ​ | ​ | $ | 1,766,576 | ​ | ​ | ​ | ​ | $ | 861,107 | ​ | ​ | ​ | ​ | $ | 126,154 | ​ | ​ | ​ | ​ | $ | 192,993 | ​ | ​ | ​ | ​ | $ | 2,946,830 | ​ | ​
2022 | ​ | ​ | ​ | $ | 2,628,928 | ​ | ​ | ​ | ​ | $ | 827,674 | ​ | ​ | ​ | ​ | $ | (35,578) | ​ | ​ | ​ | ​ | $ | 178,826 | ​ | ​ | ​ | ​ | $ | 3,599,850 | ​ | ​
2021 | ​ | ​ | ​ | $ | 1,118,843 | ​ | ​ | ​ | ​ | $ | (1,344,711) | ​ | ​ | ​ | ​ | $ | (3,098) | ​ | ​ | ​ | ​ | $ | 132,509 | ​ | ​ | ​ | ​ | $ | (96,457) | ​ | ​
2020 | ​ | ​ | ​ | $ | 880,230 | ​ | ​ | ​ | ​ | $ | (2,078,089) | ​ | ​ | ​ | ​ | $ | 7,763 | ​ | ​ | ​ | ​ | $ | 99,142 | ​ | ​ | ​ | ​ | $ | (1,090,954) | ​ | ​
​ (5) This column reflects cumulative Total Shareholder Return (“TSR”) for the trailing one- to five- year period from 2020 to 2024, as calculated in accordance with Item 402(v)(2)(iv) of Regulation S-K. Accordingly, TSR for 2020 reflects a one-year return, TSR for 2021 reflects a two-year cumulative return, etc. TSR for 2024 reflects a five-year cumulative return. ​ (6) The Peer Group used in calculating these amounts is composed of Adtalem Global Education, Inc., Bright Horizons Family Solutions Inc., Chegg, Inc., Graham Holdings Company, Grand Canyon Education, Inc., John Wiley & Sons, Inc., Stride, Inc. (formerly K12, Inc.), Laureate Education, Inc., Pearson PLC, Perdoceo Education Corporation, and Udemy, Inc. The same peer group was used to create the Peer Group Performance Graph in Item 5 of the Company’s 2024 Annual Report on Form 10-K, in accordance with Item 201(e) of Regulation S-K. ​ (7) Amounts in this column are rounded to the nearest thousand. ​ (8) The revenue figures used to evaluate the achievement of non-equity compensation targets are based on adjusted results, which exclude purchase accounting adjustments to record acquired contract liabilities at fair value as a result of the Company’s acquisition of ANZ in 2020. For 2020, the revenue amount was further adjusted to exclude all post-acquisition revenue related to ANZ, as described in Annex 1. For 2021, 2022, 2023, and 2024 the revenue amount was further adjusted using a constant exchange rate of 0.74, 0.72, 0.69, and 0.66 Australian Dollars to U.S. Dollars, respectively. Amounts in this column are rounded to the nearest thousand. ​ |  |  |  |
Named Executive Officers, Footnote | (1) In 2024, 2023, 2022, 2021, and 2020, the PEO was Karl McDonnell. (3) In 2024, 2023, 2022 and 2021, the Non-PEO NEOs were Robert S. Silberman, Daniel W. Jackson, Lizette B. Herraiz, and Christa E. Hokenson. In 2020, the Non-PEO NEOs were Robert S. Silberman, Daniel W. Jackson, Lizette B. Herraiz, and Andrew E. Watt. |  |  |  |
Peer Group Issuers, Footnote | (6) The Peer Group used in calculating these amounts is composed of Adtalem Global Education, Inc., Bright Horizons Family Solutions Inc., Chegg, Inc., Graham Holdings Company, Grand Canyon Education, Inc., John Wiley & Sons, Inc., Stride, Inc. (formerly K12, Inc.), Laureate Education, Inc., Pearson PLC, Perdoceo Education Corporation, and Udemy, Inc. The same peer group was used to create the Peer Group Performance Graph in Item 5 of the Company’s 2024 Annual Report on Form 10-K, in accordance with Item 201(e) of Regulation S-K. |  |  |  |
PEO Total Compensation Amount | $ 5,487,873 | $ 5,417,738 | $ 5,468,805 | $ 6,197,825 | $ 4,613,413
PEO Actually Paid Compensation Amount | $ 6,126,678 | 8,182,401 | 10,041,112 | 1,252,419 | (1,795,185)
Adjustment To PEO Compensation, Footnote | (2) The tables below detail the components and amounts included in the “Compensation Actually Paid to PEO”. ​
Year | ​ | ​ | Total from Summary Compensation Table | ​ | ​ | Stock Awards Value from Summary Compensation Table | ​ | ​ | Incremental Equity Award Fair Value Adjustment(a) | ​ | ​ | Total | ​
2024 | ​ | ​ | ​ | $ | 5,487,873 | ​ | ​ | ​ | ​ | $ | (3,250,000) | ​ | ​ | ​ | ​ | $ | 3,888,805 | ​ | ​ | ​ | ​ | $ | 6,126,678 | ​ | ​
2023 | ​ | ​ | ​ | $ | 5,417,738 | ​ | ​ | ​ | ​ | $ | (3,250,000) | ​ | ​ | ​ | ​ | $ | 6,014,663 | ​ | ​ | ​ | ​ | $ | 8,182,401 | ​ | ​
2022 | ​ | ​ | ​ | $ | 5,468,805 | ​ | ​ | ​ | ​ | $ | (3,360,000) | ​ | ​ | ​ | ​ | $ | 7,932,307 | ​ | ​ | ​ | ​ | $ | 10,041,112 | ​ | ​
2021 | ​ | ​ | ​ | $ | 6,197,825 | ​ | ​ | ​ | ​ | $ | (5,000,000) | ​ | ​ | ​ | ​ | $ | 54,594 | ​ | ​ | ​ | ​ | $ | 1,252,419 | ​ | ​
2020 | ​ | ​ | ​ | $ | 4,613,413 | ​ | ​ | ​ | ​ | $ | (3,000,000) | ​ | ​ | ​ | ​ | $ | (3,408,598) | ​ | ​ | ​ | ​ | $ | (1,795,185) | ​ | ​
​ (a) Reflects an adjustment to the grant date fair value of equity-based awards as calculated in accordance with Item 402(v)(2)(iii)(C)(1) and consistent with the fair value methodology reflected in our financial statements for share-based payments. ​ The amounts deducted or added in calculating the equity award adjustments for the “Compensation Actually Paid to PEO” are as follows.
Year | ​ | ​ | Year end fair value of equity awards granted during the year | ​ | ​ | Year over year change in fair value of outstanding and unvested equity awards | ​ | ​ | Year over year change in fair value of equity awards granted in prior years that vested in the year | ​ | ​ | Value of dividends or other earnings paid on stock or option awards not otherwise reflected in fair value or total compensation | ​ | ​ | Total equity award adjustments | ​
2024 | ​ | ​ | ​ | $ | 3,193,936 | ​ | ​ | ​ | ​ | $ | 164,778 | ​ | ​ | ​ | ​ | $ | 71,403 | ​ | ​ | ​ | ​ | $ | 458,688 | ​ | ​ | ​ | ​ | $ | 3,888,805 | ​ | ​
2023 | ​ | ​ | ​ | $ | 3,189,628 | ​ | ​ | ​ | ​ | $ | 2,007,998 | ​ | ​ | ​ | ​ | $ | 391,159 | ​ | ​ | ​ | ​ | $ | 425,878 | ​ | ​ | ​ | ​ | $ | 6,014,663 | ​ | ​
2022 | ​ | ​ | ​ | $ | 5,257,857 | ​ | ​ | ​ | ​ | $ | 2,358,006 | ​ | ​ | ​ | ​ | $ | (121,004) | ​ | ​ | ​ | ​ | $ | 437,448 | ​ | ​ | ​ | ​ | $ | 7,932,307 | ​ | ​
2021 | ​ | ​ | ​ | $ | 3,196,643 | ​ | ​ | ​ | ​ | $ | (3,480,609) | ​ | ​ | ​ | ​ | $ | (16,900) | ​ | ​ | ​ | ​ | $ | 355,460 | ​ | ​ | ​ | ​ | $ | 54,594 | ​ | ​
2020 | ​ | ​ | ​ | $ | 1,955,981 | ​ | ​ | ​ | ​ | $ | (5,765,290) | ​ | ​ | ​ | ​ | $ | 133,807 | ​ | ​ | ​ | ​ | $ | 266,904 | ​ | ​ | ​ | ​ | $ | (3,408,598) | ​ | ​
Non-PEO NEO Average Total Compensation Amount | $ 2,768,438 | 2,712,155 | 2,810,650 | 2,442,544 | 2,282,923
Non-PEO NEO Average Compensation Actually Paid Amount | $ 3,060,641 | 3,858,985 | 4,730,500 | 596,087 | (158,031)
Adjustment to Non-PEO NEO Compensation Footnote | (4) The tables below detail the components and amounts included in the “Average Compensation Actually Paid to Non-PEO NEOs”.
Year | ​ | ​ | Total from Summary Compensation Table | ​ | ​ | Stock Awards Value from Summary Compensation Table | ​ | ​ | Incremental Equity Award Fair Value Adjustment(a) | ​ | ​ | Total | ​
2024 | ​ | ​ | ​ | $ | 2,768,438 | ​ | ​ | ​ | ​ | $ | (1,812,500) | ​ | ​ | ​ | ​ | $ | 2,104,703 | ​ | ​ | ​ | ​ | $ | 3,060,641 | ​ | ​
2023 | ​ | ​ | ​ | $ | 2,712,155 | ​ | ​ | ​ | ​ | $ | (1,800,000) | ​ | ​ | ​ | ​ | $ | 2,946,830 | ​ | ​ | ​ | ​ | $ | 3,858,985 | ​ | ​
2022 | ​ | ​ | ​ | $ | 2,810,650 | ​ | ​ | ​ | ​ | $ | (1,680,000) | ​ | ​ | ​ | ​ | $ | 3,599,850 | ​ | ​ | ​ | ​ | $ | 4,730,500 | ​ | ​
2021 | ​ | ​ | ​ | $ | 2,442,544 | ​ | ​ | ​ | ​ | $ | (1,750,000) | ​ | ​ | ​ | ​ | $ | (96,457) | ​ | ​ | ​ | ​ | $ | 596,087 | ​ | ​
2020 | ​ | ​ | ​ | $ | 2,282,923 | ​ | ​ | ​ | ​ | $ | (1,350,000) | ​ | ​ | ​ | ​ | $ | (1,090,954) | ​ | ​ | ​ | ​ | $ | (158,031) | ​ | ​
​ (a) Reflects an adjustment to the grant date fair value of equity-based awards as calculated in accordance with Item 402(v)(2)(iii)(C)(1) and consistent with the fair value methodology reflected in our financial statements for share-based payments. ​ The amounts deducted or added in calculating the equity award adjustments for the “Average Compensation Actually Paid to Non-PEO NEOs” are as follows.
Year | ​ | ​ | Year end fair value of equity awards granted during the year | ​ | ​ | Year over year change in fair value of outstanding and unvested equity awards | ​ | ​ | Year over year change in fair value of equity awards granted in prior years that vested in the year | ​ | ​ | Value of dividends or other earnings paid on stock or option awards not otherwise reflected in fair value or total compensation | ​ | ​ | Total equity award adjustments | ​
2024 | ​ | ​ | ​ | $ | 1,781,262 | ​ | ​ | ​ | ​ | $ | 75,638 | ​ | ​ | ​ | ​ | $ | 29,157 | ​ | ​ | ​ | ​ | $ | 218,646 | ​ | ​ | ​ | ​ | $ | 2,104,703 | ​ | ​
2023 | ​ | ​ | ​ | $ | 1,766,576 | ​ | ​ | ​ | ​ | $ | 861,107 | ​ | ​ | ​ | ​ | $ | 126,154 | ​ | ​ | ​ | ​ | $ | 192,993 | ​ | ​ | ​ | ​ | $ | 2,946,830 | ​ | ​
2022 | ​ | ​ | ​ | $ | 2,628,928 | ​ | ​ | ​ | ​ | $ | 827,674 | ​ | ​ | ​ | ​ | $ | (35,578) | ​ | ​ | ​ | ​ | $ | 178,826 | ​ | ​ | ​ | ​ | $ | 3,599,850 | ​ | ​
2021 | ​ | ​ | ​ | $ | 1,118,843 | ​ | ​ | ​ | ​ | $ | (1,344,711) | ​ | ​ | ​ | ​ | $ | (3,098) | ​ | ​ | ​ | ​ | $ | 132,509 | ​ | ​ | ​ | ​ | $ | (96,457) | ​ | ​
2020 | ​ | ​ | ​ | $ | 880,230 | ​ | ​ | ​ | ​ | $ | (2,078,089) | ​ | ​ | ​ | ​ | $ | 7,763 | ​ | ​ | ​ | ​ | $ | 99,142 | ​ | ​ | ​ | ​ | $ | (1,090,954) | ​ | ​
Compensation Actually Paid vs. Total Shareholder Return | Comparison of Compensation Actually Paid To SEI TSR Between December 31, 2020 and December 31, 2021, the Company’s TSR decreased and both Compensation Actually Paid to the PEO and Average Compensation Paid to Non-PEO NEOs increased. Between December 31, 2021 and December 31, 2022, all three numbers increased. Between December 31, 2022 and December 31, 2023, TSR increased, while the compensation measures decreased. Between December 31, 2023 and December 31, 2024, TSR increased, while the compensation measures decreased. |  |  |  |
Compensation Actually Paid vs. Net Income | Comparison of Compensation Actually Paid To Net Income Between December 31, 2020 and December 31, 2021, net income decreased and both Compensation Actually Paid to the PEO and Average Compensation Paid to Non-PEO NEOs increased. Between December 31, 2021 and December 31, 2022, net income declined, while the compensation measures increased. Between December 31, 2022 and December 31, 2023, net income increased, while the compensation measures decreased. Between December 31, 2023 and December 31, 2024, net income increased, while the compensation measures decreased. |  |  |  |
Compensation Actually Paid vs. Company Selected Measure | Comparison of Compensation Actually Paid To Revenue Between December 31, 2020 and December 31, 2021, revenue, Compensation Actually Paid to the PEO, and Average Compensation Paid to Non-PEO NEOs all increased. Between December 31, 2021 and December 31, 2022, revenue declined, while the compensation measures increased. Between December 31, 2022 and December 31, 2023, revenue increased, while the compensation measures decreased. Between December 31, 2023 and December 31, 2024, revenue increased, while the compensation measures decreased. |  |  |  |
Total Shareholder Return Vs Peer Group | Comparison of Company TSR to Peer Group TSR In 2020, the Company’s TSR decreased, while the Peer Group TSR increased. In 2021, both the Company’s TSR and the Peer Group TSR decreased. In 2022, the Company’s TSR increased and the Peer Group TSR decreased. In 2023, the Company’s TSR and the Peer Group TSR both increased. In 2024, the Company’s TSR and the Peer Group TSR both increased. |  |  |  |
Tabular List, Table | As discussed above in “2024 Compensation Decisions,” in 2024, the Board of Directors set both quantitative financial objectives and strategic objectives for the Company. These Financial Performance Measures and Strategic Performance Measures, which the Compensation Committee and the Board use to link compensation of our named executive officers to company performance, are listed in the table below. In 2024, for purposes of the comparisons required by Item 402(v) of Regulation S-K, we have selected revenue as the “Company-Selected Measure.”
​ | Financial Performance Measures | ​
​ | Revenue | ​
​ | Operating Income (EBIT) | ​
​ | Diluted Earnings Per Share | ​
​ | Strategic Performance Measures | ​
​ | Grow employer-affiliated enrollment at U.S. institutions | ​
​ | Maintain compliance with all regulatory, legal, and ethical business standards | ​
​ | Reallocate excess capital into the business or back to our stockholders | ​
Total Shareholder Return Amount | $ 67.79 | 65.48 | 53.93 | 38.41 | 61.22
Peer Group Total Shareholder Return Amount | 180.45 | 121.4 | 89.49 | 93.71 | 117.69
Net Income (Loss) | $ 112,684,000 | $ 69,791,000 | $ 46,670,000 | $ 55,087,000 | $ 86,268,000
Company Selected Measure Amount | 1,220,907,000 | 1,143,861,000 | 1,073,853,000 | 1,132,123,000 | 1,004,272,000
PEO Name | Karl McDonnell |  |  |  |
Foreign Currency Exchange Rate, Translation | $ / $ | 0.66 | 0.69 | 0.72 | 0.74 |
Measure:: 1 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Revenue |  |  |  |
Non-GAAP Measure Description | (8) The revenue figures used to evaluate the achievement of non-equity compensation targets are based on adjusted results, which exclude purchase accounting adjustments to record acquired contract liabilities at fair value as a result of the Company’s acquisition of ANZ in 2020. For 2020, the revenue amount was further adjusted to exclude all post-acquisition revenue related to ANZ, as described in Annex 1. For 2021, 2022, 2023, and 2024 the revenue amount was further adjusted using a constant exchange rate of 0.74, 0.72, 0.69, and 0.66 Australian Dollars to U.S. Dollars, respectively. |  |  |  |
Measure:: 2 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Operating Income (EBIT) |  |  |  |
Measure:: 3 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Diluted Earnings Per Share |  |  |  |
PEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | $ (3,250,000) | $ (3,250,000) | $ (3,360,000) | $ (5,000,000) | $ (3,000,000)
PEO | Equity Awards Adjustments, Excluding Value Reported in Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 3,888,805 | 6,014,663 | 7,932,307 | 54,594 | (3,408,598)
PEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 3,193,936 | 3,189,628 | 5,257,857 | 3,196,643 | 1,955,981
PEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 164,778 | 2,007,998 | 2,358,006 | (3,480,609) | (5,765,290)
PEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 71,403 | 391,159 | (121,004) | (16,900) | 133,807
PEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 458,688 | 425,878 | 437,448 | 355,460 | 266,904
Non-PEO NEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (1,812,500) | (1,800,000) | (1,680,000) | (1,750,000) | (1,350,000)
Non-PEO NEO | Equity Awards Adjustments, Excluding Value Reported in Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 2,104,703 | 2,946,830 | 3,599,850 | (96,457) | (1,090,954)
Non-PEO NEO | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 1,781,262 | 1,766,576 | 2,628,928 | 1,118,843 | 880,230
Non-PEO NEO | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 75,638 | 861,107 | 827,674 | (1,344,711) | (2,078,089)
Non-PEO NEO | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 29,157 | 126,154 | (35,578) | (3,098) | 7,763
Non-PEO NEO | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | $ 218,646 | $ 192,993 | $ 178,826 | $ 132,509 | $ 99,142

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