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Pay vs Performance Disclosure | 12 Months Ended
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Dec. 31, 2023 USD ($) $ / shares | Dec. 31, 2022 USD ($) $ / shares | Dec. 31, 2021 USD ($) $ / shares | Dec. 31, 2020 USD ($) $ / shares
Pay vs Performance Disclosure |  |  |  |
Pay vs Performance Disclosure, Table |
Year | Summary Compensation Table Total for Principal Executive Officer (“PEO”) ($)(1) | Compensation Actually Paid to PEO ($)(2) |  | Average Summary Compensation Table Total for Non-PEO Named Executive Officers (“Other NEOs”) ($)(3) | Average Compensation Actually Paid to Other NEOs ($)(2) |  | Value of Initial Fixed $100 Investment Based On: | Net Income ($mm) | Company- Selected Measure: EEPS ($)(5)
|  | TSR (Calculated per Item 201(e) of Reg S-K) ($) | Peer Group TSR (Calculated per Item 201(e) of Reg S-K) ($)(4)
2023 | 14,617,823 | 4,737,760 |  | 5,667,535 | 11,365 |  | 180 | 144 | 906.1 | 19.48
2022 | 13,743,212 | 12,828,824 |  | 5,648,688 | 5,767,013 |  | 188 | 123 | 1,388.1 | 20.02
2021 | 9,063,156 | 50,596,284 | (6) | 3,960,965 | 20,158,091 | (6) | 195 | 142 | 890.1 | 18.05
2020 | 7,632,026 | 19,261,190 |  | 2,346,688 | 4,431,940 |  | 121 | 114 | 427.0 | 13.30
Company Selected Measure Name | Economic earnings per share |  |  |
Named Executive Officers, Footnote | For each of 2023, 2022, and 2021, represents the total compensation as reported in the Summary Compensation Table included in this Proxy Statement for Mr. Horgen, the Company’s President and Chief Executive Officer. For 2020, represents the total compensation as reported in the Summary Compensation Table for Mr. Horgen in the 2023 Proxy Statement. |  |  |
Peer Group Issuers, Footnote | Reflects the TSR of the S&P MidCap 400 index, which we also utilize in the stock performance graph required by Item 201(e) of Regulation S-K included in our 2023 Annual Report on Form 10-K. |  |  |
PEO Total Compensation Amount | $ 14,617,823 | $ 13,743,212 | $ 9,063,156 | $ 7,632,026
PEO Actually Paid Compensation Amount | $ 4,737,760 | 12,828,824 | 50,596,284 | 19,261,190
Adjustment To PEO Compensation, Footnote | “Compensation Actually Paid” represents a calculation of compensation under SEC rules that differs significantly from the Summary Compensation Table presentation of compensation, as well as from the way in which the Compensation Committee views annual compensation decisions, as discussed in the “Compensation Discussion and Analysis” section of this Proxy Statement. The figures reported in this column do not reflect the actual amount of compensation earned by or paid to Mr. Horgen and the Other NEOs during the applicable calendar year or for the applicable performance year. To calculate the compensation actually paid to the PEO and the average compensation actually paid to the Other NEOs, the below adjustments were made to total compensation as reported in the Summary Compensation Table. The adjustments were calculated according to the prescribed method determined by the SEC for the calculation of compensation actually paid for the periods presented. For equity awards with performance-based vesting conditions, fair value as of the applicable year-end is based on the probable outcome of such conditions as of year-end. There were no other assumptions made in the valuation of equity awards that differ materially from those disclosed at the time of grant.
Year |  | Summary Compensation Table Total ($) | Less Reported Value of Equity Awards for the Covered Year ($) | Plus Year-End Fair Value of Outstanding Unvested Equity Awards Granted in the Covered Year ($) | Change in Fair Value as of Year-End of Outstanding Unvested Equity Awards Granted in Prior Years ($) | Change in Fair Value as of Year-End of Equity Awards Granted in Prior Years that Vested in the Covered Year ($) | Plus Vesting Date Fair Value of Equity Awards Granted in the Covered Year and that Vested in the Same Year ($)(7) | Deduct Fair Value as of Prior Year- End of Equity Awards that Failed to Meet Applicable Vesting Conditions During the Covered Year ($) | Add Fair Value of Dividends or Other Earnings Paid on Stock or Option Awards that are not Otherwise Included ($) | Compensation Actually Paid ($)
PEO
2023 |  | 14,617,823 | (8,990,000) | 8,467,709 | (8,306,040) | (1,058,423) | — | — | 6,691 | 4,737,760
2022 |  | 13,743,212 | (6,925,000) | 10,277,354 | (1,822,612) | (2,453,065) | — | — | 8,934 | 12,828,824
2021 | (6) | 9,063,156 | (3,500,000) | 4,753,187 | 34,957,185 | 5,421,436 | — | (108,850) | 10,168 | 50,596,284
2020 |  | 7,632,026 | (4,275,000) | 6,773,932 | 9,242,980 | (99,356) | — | (93,468) | 80,075 | 19,261,190
Other NEOs
2023 |  | 5,667,535 | (3,010,000) | 2,835,239 | (5,308,086) | (176,064) | — | — | 2,741 | 11,365
2022 |  | 5,648,688 | (2,712,500) | 4,025,548 | (717,625) | (479,865) | — | — | 2,767 | 5,767,013
2021 | (6) | 3,960,965 | (1,718,750) | 2,334,109 | 13,800,674 | 1,793,895 | — | (15,387) | 2,586 | 20,158,091
2020 |  | 2,346,688 | (1,350,000) | 1,863,602 | 1,607,295 | (186,941) | 189,655 | (54,942) | 16,584 | 4,431,940
(3)For 2023, represents the average total compensation as reported in the Summary Compensation Table for Mr. Wojcik, Mr. Jamal, and Mr. Erickson. For each of 2022 and 2021, represents the average total compensation as reported in the Summary Compensation Table for Mr. Wojcik, Mr. Jamal, Mr. Erickson, and David M. Billings. Mr. Billings retired in December 2022 from his position of General Counsel and Secretary. For 2020, represents the average total compensation as reported in the Summary Compensation Table for Mr. Wojcik, Mr. Billings, Sean M. Healey, and Hugh P. B. Cutler. Mr. Healey served as Executive Chairman until his passing in May 2020, and Mr. Cutler retired in May 2020 from his position of Head of Global Distribution. For 2021, Compensation Actually Paid to the PEO and the average Compensation Actually Paid to the Other NEOs reflect the strong appreciation of AMG’s stock price during 2021, and the consequent increase in value of unvested awards, driven by the unvested value of the one-time special Long-Term Equity Alignment Awards granted in 2019. (7)Represents the vesting of equity awards held by Mr. Healey in accordance with such award terms upon his passing in May 2020. |  |  |
Non-PEO NEO Average Total Compensation Amount | $ 5,667,535 | 5,648,688 | 3,960,965 | 2,346,688
Non-PEO NEO Average Compensation Actually Paid Amount | $ 11,365 | 5,767,013 | 20,158,091 | 4,431,940
Adjustment to Non-PEO NEO Compensation Footnote | “Compensation Actually Paid” represents a calculation of compensation under SEC rules that differs significantly from the Summary Compensation Table presentation of compensation, as well as from the way in which the Compensation Committee views annual compensation decisions, as discussed in the “Compensation Discussion and Analysis” section of this Proxy Statement. The figures reported in this column do not reflect the actual amount of compensation earned by or paid to Mr. Horgen and the Other NEOs during the applicable calendar year or for the applicable performance year. To calculate the compensation actually paid to the PEO and the average compensation actually paid to the Other NEOs, the below adjustments were made to total compensation as reported in the Summary Compensation Table. The adjustments were calculated according to the prescribed method determined by the SEC for the calculation of compensation actually paid for the periods presented. For equity awards with performance-based vesting conditions, fair value as of the applicable year-end is based on the probable outcome of such conditions as of year-end. There were no other assumptions made in the valuation of equity awards that differ materially from those disclosed at the time of grant.
Year |  | Summary Compensation Table Total ($) | Less Reported Value of Equity Awards for the Covered Year ($) | Plus Year-End Fair Value of Outstanding Unvested Equity Awards Granted in the Covered Year ($) | Change in Fair Value as of Year-End of Outstanding Unvested Equity Awards Granted in Prior Years ($) | Change in Fair Value as of Year-End of Equity Awards Granted in Prior Years that Vested in the Covered Year ($) | Plus Vesting Date Fair Value of Equity Awards Granted in the Covered Year and that Vested in the Same Year ($)(7) | Deduct Fair Value as of Prior Year- End of Equity Awards that Failed to Meet Applicable Vesting Conditions During the Covered Year ($) | Add Fair Value of Dividends or Other Earnings Paid on Stock or Option Awards that are not Otherwise Included ($) | Compensation Actually Paid ($)
PEO
2023 |  | 14,617,823 | (8,990,000) | 8,467,709 | (8,306,040) | (1,058,423) | — | — | 6,691 | 4,737,760
2022 |  | 13,743,212 | (6,925,000) | 10,277,354 | (1,822,612) | (2,453,065) | — | — | 8,934 | 12,828,824
2021 | (6) | 9,063,156 | (3,500,000) | 4,753,187 | 34,957,185 | 5,421,436 | — | (108,850) | 10,168 | 50,596,284
2020 |  | 7,632,026 | (4,275,000) | 6,773,932 | 9,242,980 | (99,356) | — | (93,468) | 80,075 | 19,261,190
Other NEOs
2023 |  | 5,667,535 | (3,010,000) | 2,835,239 | (5,308,086) | (176,064) | — | — | 2,741 | 11,365
2022 |  | 5,648,688 | (2,712,500) | 4,025,548 | (717,625) | (479,865) | — | — | 2,767 | 5,767,013
2021 | (6) | 3,960,965 | (1,718,750) | 2,334,109 | 13,800,674 | 1,793,895 | — | (15,387) | 2,586 | 20,158,091
2020 |  | 2,346,688 | (1,350,000) | 1,863,602 | 1,607,295 | (186,941) | 189,655 | (54,942) | 16,584 | 4,431,940
(3)For 2023, represents the average total compensation as reported in the Summary Compensation Table for Mr. Wojcik, Mr. Jamal, and Mr. Erickson. For each of 2022 and 2021, represents the average total compensation as reported in the Summary Compensation Table for Mr. Wojcik, Mr. Jamal, Mr. Erickson, and David M. Billings. Mr. Billings retired in December 2022 from his position of General Counsel and Secretary. For 2020, represents the average total compensation as reported in the Summary Compensation Table for Mr. Wojcik, Mr. Billings, Sean M. Healey, and Hugh P. B. Cutler. Mr. Healey served as Executive Chairman until his passing in May 2020, and Mr. Cutler retired in May 2020 from his position of Head of Global Distribution. For 2021, Compensation Actually Paid to the PEO and the average Compensation Actually Paid to the Other NEOs reflect the strong appreciation of AMG’s stock price during 2021, and the consequent increase in value of unvested awards, driven by the unvested value of the one-time special Long-Term Equity Alignment Awards granted in 2019. (7)Represents the vesting of equity awards held by Mr. Healey in accordance with such award terms upon his passing in May 2020. |  |  |
Compensation Actually Paid vs. Total Shareholder Return | The following exhibits reflect the relationship between the Compensation Actually Paid (“CAP”) to the PEO and the average CAP to the Other NEOs and the performance measures shown in the ab ove pay versus performance table during the four most recently-completed fiscal years:
CAP vs. Company and Peer Group TSR
Compensation Actually Paid vs. Net Income |
CAP vs. Net Income
Compensation Actually Paid vs. Company Selected Measure |
CAP vs. EEPS
Total Shareholder Return Vs Peer Group | The following exhibits reflect the relationship between the Compensation Actually Paid (“CAP”) to the PEO and the average CAP to the Other NEOs and the performance measures shown in the ab ove pay versus performance table during the four most recently-completed fiscal years:
CAP vs. Company and Peer Group TSR
Tabular List, Table | CAP vs. Company and Peer Group and Index TSR CAP ($ million) $100 $80 $60 $40 $20 $0 2020 2021 202
Tabular List of Financial Performance Measures(1)
EEPS
Annual Management Fee EBITDA
Absolute TSR
Relative TSR
Total Shareholder Return Amount | $ 180 | 188 | 195 | 121
Peer Group Total Shareholder Return Amount | 144 | 123 | 142 | 114
Net Income (Loss) | $ 906,100,000 | $ 1,388,100,000 | $ 890,100,000 | $ 427,000,000.0
Company Selected Measure Amount | $ / shares | 19.48 | 20.02 | 18.05 | 13.30
PEO Name | Mr. Horgen |  |  |
Additional 402(v) Disclosure | See the “Compensation Discussion and Analysis – Summary of Performance Assessment Target Descriptions and Rationale, and 2023 Target Setting Process” section of this Proxy Statement for more information about the above measures. |  |  |
Measure:: 1 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | EEPS |  |  |
Non-GAAP Measure Description | Economic earnings per share, or EEPS, is a non-GAAP financial measure. Additional information on non-GAAP financial performance measures, including reconciliations to the most directly comparable GAAP measure, can be found in AMG’s 2023 Annual Report on Form 10-K (or, with respect to amounts above for 2020, AMG's Quarterly Report on Form 10-Q for the quarter ended March 31, 2023) under “Supplemental Financial Performance Measures.” |  |  |
Measure:: 2 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | Annual Management Fee EBITDA |  |  |
Measure:: 3 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | Absolute TSR |  |  |
Measure:: 4 |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Name | Relative TSR |  |  |
PEO | Equity Awards Reported Value [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ 8,990,000 | $ 6,925,000 | $ 3,500,000 | $ 4,275,000
PEO | Equity Awards Granted in Covered Year, Unvested [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 8,467,709 | 10,277,354 | 4,753,187 | 6,773,932
PEO | Equity Awards Granted in Prior Years, Unvested [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 8,306,040 | 1,822,612 | 34,957,185 | 9,242,980
PEO | Equity Awards Granted in Prior Years, Vested [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 1,058,423 | 2,453,065 | 5,421,436 | 99,356
PEO | Equity Awards Granted in Covered Year, Vested [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 0 | 0 | 0 | 0
PEO | Equity Awards Granted in Prior Years, Failed to Meet Vesting Conditions [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 0 | 0 | 108,850 | 93,468
PEO | Equity Awards, Value of Dividends Paid Adjustment [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 6,691 | 8,934 | 10,168 | 80,075
Non-PEO NEO | Equity Awards Reported Value [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 3,010,000 | 2,712,500 | 1,718,750 | 1,350,000
Non-PEO NEO | Equity Awards Granted in Covered Year, Unvested [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 2,835,239 | 4,025,548 | 2,334,109 | 1,863,602
Non-PEO NEO | Equity Awards Granted in Prior Years, Unvested [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 5,308,086 | 717,625 | 13,800,674 | 1,607,295
Non-PEO NEO | Equity Awards Granted in Prior Years, Vested [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 176,064 | 479,865 | 1,793,895 | 186,941
Non-PEO NEO | Equity Awards Granted in Covered Year, Vested [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 0 | 0 | 0 | 189,655
Non-PEO NEO | Equity Awards Granted in Prior Years, Failed to Meet Vesting Conditions [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | 0 | 0 | 15,387 | 54,942
Non-PEO NEO | Equity Awards, Value of Dividends Paid Adjustment [Member] |  |  |  |
Pay vs Performance Disclosure |  |  |  |
Adjustment to Compensation, Amount | $ 2,741 | $ 2,767 | $ 2,586 | $ 16,584

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