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Pay vs Performance Disclosure number in Millions | 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 |
|  | PEO-Michael Weening (President & CEO) |  | PEO - Carl Russo (Former CEO) |  |  |  |  |  | Value of Initial Fixed $100 Investment Based On: |  |  |  |  |
Year |  | Summary Compensation Table Total for PEO ($) (1) |  | Compensation Actually Paid to PEO ($) (2) |  | Summary Compensation Table Total for PEO ($) (1) |  | Compensation Actually Paid to PEO ($) (2) |  | Average Summary Compensation Table Total for Non-PEO NEOs ($) (1) (3) |  | Average Compensation Actually Paid to Non-PEO NEOs ($) (2) (3) |  | Total Shareholder Return ($) (4) |  | Peer Group Total Shareholder Return ($) (5) |  | Net Income (in millions) ($) (6) |  | Non-GAAP Operating Income (in millions) ($) (7) |
2024 |  | 8,265,659 |  |  | 2,278,161 |  |  | n/a |  | n/a |  | 6,507,529 |  |  | 2,816,175 |  |  | 436 |  |  | 203 |  |  | (30) |  |  | 31 |  |
2023 |  | 7,155,795 |  |  | (13,126,694) |  |  | n/a |  | n/a |  | 6,461,941 |  |  | (2,804,301) |  |  | 546 |  |  | 147 |  |  | 29 |  |  | 123 |  |
2022 |  | 22,278,030 |  |  | 17,458,995 |  |  | 3,866,660 |  |  | (1,092,938) |  |  | 6,724,491 |  |  | 5,951,904 |  |  | 855 |  |  | 122 |  |  | 41 |  |  | 99 |  |
2021 |  | n/a |  | n/a |  | 7,726,910 |  |  | 30,362,780 |  |  | 4,914,250 |  |  | 15,939,257 |  |  | 1,000 |  |  | 152 |  |  | 238 |  |  | 96 |  |
2020 |  | n/a |  | n/a |  | 6,894,750 |  |  | 13,878,750 |  |  | 4,303,652 |  |  | 9,778,865 |  |  | 372 |  |  | 101 |  |  | 33 |  |  | 64 |  |
Company Selected Measure Name | Non-GAAP Operating Income |  |  |  |
Named Executive Officers, Footnote | These amounts reflect the total compensation, as disclosed in the Summary Compensation Table, paid to our CEO (Mr. Weening in 2024, 2023 and 2022 and Mr. Russo in 2022, 2021 and 2020) and the average total compensation for our non-PEO NEOs in 2024, 2023, 2022, 2021 and 2020. The chart below outlines our non-PEO NEOs for 2024, 2023, 2022, 2021 and 2020:
2024 |  | 2023 |  | 2022 |  | 2021 |  | 2020
— |  | — |  | — |  | Michael Weening |  | Michael Weening
Cory Sindelar |  | Cory Sindelar |  | Cory Sindelar |  | Cory Sindelar |  | Cory Sindelar
J. Matthew Collins |  | J. Matthew Collins |  | J. Matthew Collins |  | J. Matthew Collins |  |
Shane Eleniak |  | Shane Eleniak |  | Shane Eleniak |  | Shane Eleniak |  |
*In 2020, we only had three NEOs (including Mr. Russo, who was our CEO). |  |  |  |
Peer Group Issuers, Footnote | The peer group reflects the S&P 500 Communications Equipment Index, assuming a fixed investment of $100 as of December 31, 2019. |  |  |  |
Adjustment To PEO Compensation, Footnote | Compensation Actually Paid represents the total compensation from the Summary Compensation Table for each of our CEOs and the average total compensation for our non-PEO NEOs as adjusted to reflect changes in the fair value of our outstanding stock option awards in accordance with Item 402(v) of Regulation S-K. The tables below detail the adjustments for 2024, 2023, 2022 and 2021.
| 2024 |  | 2023 |  | 2022 |  | 2021 |  | 2020
| PEO (Weening) ($) |  | Average Non-PEO NEOs ($) |  | PEO (Weening) ($) |  | Average Non-PEO NEOs ($) |  | PEO (Weening) ($) |  | PEO (Russo) ($) |  | Average Non-PEO NEOs ($) |  | PEO (Russo) ($) |  | Average Non-PEO NEOs ($) |  | PEO (C. Russo) ($) |  | Average Non-PEO NEOs ($)
Summary Compensation Table Total | 8,265,659 |  |  | 6,507,529 |  |  | 7,155,795 |  |  | 6,461,941 |  |  | 22,278,030 |  |  | 3,866,660 |  |  | 6,724,491 |  |  | 7,726,910 |  |  | 4,914,250 |  |  | 6,894,750 |  |  | 4,303,652 |
- Stock and Option Awards (a) | 6,408,535 |  |  | 5,493,030 |  |  | 5,299,670 |  |  | 5,450,783 |  |  | 20,450,550 |  |  | 3,092,910 |  |  | 6,044,912 |  |  | 6,656,130 |  |  | 3,975,430 |  |  | 4,952,000 |  |  | 2,731,118 |
| + Year End Fair Value of Equity Awards Granted in the Applicable Year | 3,929,602 |  |  | 3,464,055 |  |  | 4,057,125 |  |  | 2,886,875 |  |  | 20,410,000 |  |  | 3,925,000 |  |  | 7,326,667 |  |  | 12,651,000 |  |  | 5,865,454 |  |  | 11,936,000 |  |  | 2,766,000 |
Equity Award Adjustments (b) | + Year over Year Change in Fair Value of Equity Awards Granted in Prior Years that are Unvested at Year End | (1,661,550) |  |  | (649,151) |  |  | (8,585,504) |  |  | (2,897,883) |  |  | (1,314,712) |  |  | (1,423,500) |  |  | (511,700) |  |  | 13,625,000 |  |  | 7,298,173 |  |  | — |  |  | 4,313,081 |
| + Year over Year Change in Fair Value of Equity Awards Granted in Prior Years that Vested in the Year | (1,847,015) |  |  | (1,013,228) |  |  | (10,454,440) |  |  | (3,804,451) |  |  | (3,463,773) |  |  | (4,368,188) |  |  | (1,542,642) |  |  | 3,016,000 |  |  | 1,836,810 |  |  | — |  |  | 1,127,249 |
Compensation Actually Paid | 2,278,161 |  |  | 2,816,175 |  |  | (13,126,694) |  |  | (2,804,301) |  |  | 17,458,995 |  |  | (1,092,938) |  |  | 5,951,904 |  |  | 30,362,780 |  |  | 15,939,257 |  |  | 13,878,750 |  |  | 9,778,865 |
(a)Reflects the grant date fair value of stock option awards as disclosed in the Summary Compensation Table for the applicable year. (b)These amounts represent the sum of the fair value of all stock option awards granted during the covered year, measured at the end of the year plus the change in the fair value of unvested stock option awards granted in prior years, measured at the end of the covered year (or, for stock option awards that vested in the covered year, as of the vesting date). Fair value is calculated in accordance with ASC Topic 718. For performance-based stock options, we have assumed achievement of performance goals at maximum (i.e., 100% of target). |  |  |  |
Non-PEO NEO Average Total Compensation Amount | $ 6,507,529 | $ 6,461,941 | $ 6,724,491 | $ 4,914,250 | $ 4,303,652
Non-PEO NEO Average Compensation Actually Paid Amount | $ 2,816,175 | (2,804,301) | 5,951,904 | 15,939,257 | 9,778,865
Adjustment to Non-PEO NEO Compensation Footnote | Compensation Actually Paid represents the total compensation from the Summary Compensation Table for each of our CEOs and the average total compensation for our non-PEO NEOs as adjusted to reflect changes in the fair value of our outstanding stock option awards in accordance with Item 402(v) of Regulation S-K. The tables below detail the adjustments for 2024, 2023, 2022 and 2021.
| 2024 |  | 2023 |  | 2022 |  | 2021 |  | 2020
| PEO (Weening) ($) |  | Average Non-PEO NEOs ($) |  | PEO (Weening) ($) |  | Average Non-PEO NEOs ($) |  | PEO (Weening) ($) |  | PEO (Russo) ($) |  | Average Non-PEO NEOs ($) |  | PEO (Russo) ($) |  | Average Non-PEO NEOs ($) |  | PEO (C. Russo) ($) |  | Average Non-PEO NEOs ($)
Summary Compensation Table Total | 8,265,659 |  |  | 6,507,529 |  |  | 7,155,795 |  |  | 6,461,941 |  |  | 22,278,030 |  |  | 3,866,660 |  |  | 6,724,491 |  |  | 7,726,910 |  |  | 4,914,250 |  |  | 6,894,750 |  |  | 4,303,652 |
- Stock and Option Awards (a) | 6,408,535 |  |  | 5,493,030 |  |  | 5,299,670 |  |  | 5,450,783 |  |  | 20,450,550 |  |  | 3,092,910 |  |  | 6,044,912 |  |  | 6,656,130 |  |  | 3,975,430 |  |  | 4,952,000 |  |  | 2,731,118 |
| + Year End Fair Value of Equity Awards Granted in the Applicable Year | 3,929,602 |  |  | 3,464,055 |  |  | 4,057,125 |  |  | 2,886,875 |  |  | 20,410,000 |  |  | 3,925,000 |  |  | 7,326,667 |  |  | 12,651,000 |  |  | 5,865,454 |  |  | 11,936,000 |  |  | 2,766,000 |
Equity Award Adjustments (b) | + Year over Year Change in Fair Value of Equity Awards Granted in Prior Years that are Unvested at Year End | (1,661,550) |  |  | (649,151) |  |  | (8,585,504) |  |  | (2,897,883) |  |  | (1,314,712) |  |  | (1,423,500) |  |  | (511,700) |  |  | 13,625,000 |  |  | 7,298,173 |  |  | — |  |  | 4,313,081 |
| + Year over Year Change in Fair Value of Equity Awards Granted in Prior Years that Vested in the Year | (1,847,015) |  |  | (1,013,228) |  |  | (10,454,440) |  |  | (3,804,451) |  |  | (3,463,773) |  |  | (4,368,188) |  |  | (1,542,642) |  |  | 3,016,000 |  |  | 1,836,810 |  |  | — |  |  | 1,127,249 |
Compensation Actually Paid | 2,278,161 |  |  | 2,816,175 |  |  | (13,126,694) |  |  | (2,804,301) |  |  | 17,458,995 |  |  | (1,092,938) |  |  | 5,951,904 |  |  | 30,362,780 |  |  | 15,939,257 |  |  | 13,878,750 |  |  | 9,778,865 |
(a)Reflects the grant date fair value of stock option awards as disclosed in the Summary Compensation Table for the applicable year. (b)These amounts represent the sum of the fair value of all stock option awards granted during the covered year, measured at the end of the year plus the change in the fair value of unvested stock option awards granted in prior years, measured at the end of the covered year (or, for stock option awards that vested in the covered year, as of the vesting date). Fair value is calculated in accordance with ASC Topic 718. For performance-based stock options, we have assumed achievement of performance goals at maximum (i.e., 100% of target). |  |  |  |
Compensation Actually Paid vs. Total Shareholder Return | The table below shows the relationship between the compensation actually paid to the PEOs and Average non-PEO NEOs relative to Total Shareholder Return (“TSR”) for Calix and the peer group for 2024, 2023, 2022, 2021, and 2020. |  |  |  |
Compensation Actually Paid vs. Net Income | The table below shows the relationship between the compensation actually paid to the PEOs and Average non-PEO NEOs relative to net income and non-GAAP operating income for 2024, 2023, 2022, 2021 and 2020. (1)Non-GAAP Operating Income is defined as operating income on a GAAP basis less certain items that are not considered indicative of our performance, consisting of: stock-based compensation, intangible asset amortization and other charges. Reconciliation of these non-GAAP amounts to GAAP is provided in Appendix C. |  |  |  |
Compensation Actually Paid vs. Company Selected Measure | The table below shows the relationship between the compensation actually paid to the PEOs and Average non-PEO NEOs relative to net income and non-GAAP operating income for 2024, 2023, 2022, 2021 and 2020. (1)Non-GAAP Operating Income is defined as operating income on a GAAP basis less certain items that are not considered indicative of our performance, consisting of: stock-based compensation, intangible asset amortization and other charges. Reconciliation of these non-GAAP amounts to GAAP is provided in Appendix C. |  |  |  |
Total Shareholder Return Amount | $ 436 | 546 | 855 | 1,000 | 372
Peer Group Total Shareholder Return Amount | 203 | 147 | 122 | 152 | 101
Net Income (Loss) | $ (30,000,000) | $ 29,000,000 | $ 41,000,000 | $ 238,000,000 | $ 33,000,000
Company Selected Measure Amount | 31 | 123 | 99 | 96 | 64
PEO Name | Mr. Weening |  | Mr. Russo | Mr. Russo |
Additional 402(v) Disclosure | Total Shareholder Return for each year is based on an initial fixed investment of $100 in our stock on December 31, 2019.The dollar amounts reported reflect our net income as reported in our audited financial statements for each applicable year. The Company and the Talent and Compensation Committee consider the below metrics to have the greatest influence on executive pay for our PEO and other NEOs: Bookings, Revenue, Non-GAAP Gross Margin and Non-GAAP Operating Income. |  |  |  |
Measure:: 1 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Bookings |  |  |  |
Measure:: 2 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Revenue |  |  |  |
Measure:: 3 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Non-GAAP Gross Margin |  |  |  |
Measure:: 4 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Non-GAAP Operating Income |  |  |  |
Non-GAAP Measure Description | The dollar amounts represent the most important financial performance measure not otherwise reported in the above table that is used by the Company to link actual compensation paid during the most recent year to the Company’s performance, as required pursuant to Item 402(v) of Regulation S-K. Non-GAAP Operating Income is defined as operating income on a GAAP basis less certain items that are not considered indicative of our performance, consisting of: stock-based compensation, intangible asset amortization and other charges. Reconciliation of these non-GAAP amounts to GAAP is provided in Appendix C. |  |  |  |
Michael Weening [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
PEO Total Compensation Amount | $ 8,265,659 | $ 7,155,795 | $ 22,278,030 |  |
PEO Actually Paid Compensation Amount | 2,278,161 | $ (13,126,694) | 17,458,995 |  |
PEO Name |  | Mr. Weening |  |  |
Carl Russo [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
PEO Total Compensation Amount |  |  | 3,866,660 | $ 7,726,910 | $ 6,894,750
PEO Actually Paid Compensation Amount |  |  | (1,092,938) | 30,362,780 | 13,878,750
PEO Name |  | Mr. Russo |  |  |
PEO | Michael Weening [Member] | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (6,408,535) | $ (5,299,670) | (20,450,550) |  |
PEO | Michael Weening [Member] | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 3,929,602 | 4,057,125 | 20,410,000 |  |
PEO | Michael Weening [Member] | 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 | (1,661,550) | (8,585,504) | (1,314,712) |  |
PEO | Michael Weening [Member] | 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 | (1,847,015) | (10,454,440) | (3,463,773) |  |
PEO | Carl Russo [Member] | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  | (3,092,910) | (6,656,130) | (4,952,000)
PEO | Carl Russo [Member] | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount |  |  | 3,925,000 | 12,651,000 | 11,936,000
PEO | Carl Russo [Member] | 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 |  |  | (1,423,500) | 13,625,000 | 0
PEO | Carl Russo [Member] | 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 |  |  | (4,368,188) | 3,016,000 | 0
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 | (5,493,030) | (5,450,783) | (6,044,912) | (3,975,430) | (2,731,118)
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 | 3,464,055 | 2,886,875 | 7,326,667 | 5,865,454 | 2,766,000
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 | (649,151) | (2,897,883) | (511,700) | 7,298,173 | 4,313,081
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 | $ (1,013,228) | $ (3,804,451) | $ (1,542,642) | $ 1,836,810 | $ 1,127,249

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