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Pay vs Performance Disclosure - USD ($) | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Pay vs Performance Disclosure |  |  |  |  |
Pay vs Performance Disclosure, Table |
| Current CEO(2) | Former CEO(2) | Non-PEO NEOs(3) | Value of Initial Fixed $100 Investment Based on(5) |  | Company Selected Measure
Fiscal Year(1) (a) | SCT Total for PEO (Larkin) (b) | Comp Actually Paid to PEO(4) (Larkin) (c) | SCT Total For PEO (Roberts) (d) | Comp Actually Paid to PEO(4) (Roberts) (e) | Average SCT Total (f) | Average Comp Actually Paid(4) (g) | Granite Total Shareholder Return (h) | Peer Group Total Shareholder Return(6) (i) | GAAP Net Income(7) ($ mil) (j) | Adjusted EBITDA(8)($ mil) (k)
2024 | $7,726,356 | $9,099,937 | n/a | n/a | $1,862,807 | $2,091,332 | $343 | $347 | $126.3 | $374.8
2023 | $4,224,356 | $4,925,501 | n/a | n/a | $1,440,131 | $1,512,609 | $197 | $252 | $43.6 | $288.1
2022 | $2,122,477 | $1,971,387 | n/a | n/a | $984,871 | $904,514 | $134 | $209 | $83.3 | $194.6
2021 | $2,363,579 | $2,606,656 | n/a | n/a | $853,298 | $834,197 | $146 | $182 | $10.1 | $146.7
2020 | $904,545 | $1,182,867 | $1,541,652 | $1,540,379 | $710,274 | $794,768 | $99 | $121 | ($145.1) | $184.4
Company Selected Measure Name | Adjusted EBITDA |  |  |  |
Named Executive Officers, Footnote | For fiscal years 2021 to 2024, Mr. Larkin was the PEO for the company. In fiscal year 2020, Mr. Larkin served as EVP, COO and President and PEO for a portion of the year. Mr. Roberts served as PEO for a portion of the 2020 fiscal year.Each of the five fiscal years presented include the average SCT totals of the Non-PEO NEOs as applicable in each reporting year. Fiscal year 2024 includes: Ms. Curtis, Mr. Radich, Mr. Tatusko, Ms. Woolsey, and Mr. Dowd. Fiscal year 2023 includes: Ms. Curtis, Mr. Radich, Mr. Tatusko, and Ms. Woolsey. Fiscal year 2022 includes: Ms. Curtis, Mr. Radich, Mr. Tatusko, Ms. Woolsey and Mr. Richards (former Operating Group SVP); fiscal year 2021 includes: Ms. Curtis, Mr. Radich, Mr. Tatusko, Mr. Dowd and Ms. Desai (former CFO); and fiscal year 2020 includes: Ms. Desai (former CFO), Mr. Radich, Mr. Richards (former Operating Group SVP) and Mr. Tatusko. |  |  |  |
Peer Group Issuers, Footnote | The amount represents the value of an initial fixed $100 investment on December 31, 2019, assuming reinvestment of all dividends.The peer group index is the Dow Jones U.S. Heavy Construction Index. |  |  |  |
Adjustment To PEO Compensation, Footnote | SEC rules require certain adjustments be made to the SCT values to determine CAP, as reported in the PVP table above. None of the NEOs participate in any defined benefit plan and as such there is no adjustment included in the table below. The following table details the applicable adjustments that were made to determine CAP. PEO SCT Total to CAP Reconciliation
Fiscal Year | Deduct SCT Stock & Options Awards | Add Year- End Value of Unvested Equity Granted in Year | Add Change in Value of Unvested Equity Granted in Prior Years | Add Vesting Date Value of Awards Granted During the Year That Vested During the Year | Add Change in Value of Vested Equity Granted in Prior Years | Deduct Fair Value of Equity for Equity Granted that Forfeited/Failed to Meet Vesting Conditions | Total Change in Value of Equity
Mr. Larkin (Current PEO)
2024 | ($5,245,403) | $1,296,664 | $677,387 | $4,493,585 | $151,349 | $0 | $1,373,581
Average Non-PEO NEOs
2024 | ($891,768) | $243,121 | $101,730 | $765,511 | $9,931 | $0 | $228,525
Non-PEO NEO Average Total Compensation Amount | $ 1,862,807 | $ 1,440,131 | $ 984,871 | $ 853,298 | $ 710,274
Non-PEO NEO Average Compensation Actually Paid Amount | $ 2,091,332 | 1,512,609 | 904,514 | 834,197 | 794,768
Adjustment to Non-PEO NEO Compensation Footnote | SEC rules require certain adjustments be made to the SCT values to determine CAP, as reported in the PVP table above. None of the NEOs participate in any defined benefit plan and as such there is no adjustment included in the table below. The following table details the applicable adjustments that were made to determine CAP. PEO SCT Total to CAP Reconciliation
Fiscal Year | Deduct SCT Stock & Options Awards | Add Year- End Value of Unvested Equity Granted in Year | Add Change in Value of Unvested Equity Granted in Prior Years | Add Vesting Date Value of Awards Granted During the Year That Vested During the Year | Add Change in Value of Vested Equity Granted in Prior Years | Deduct Fair Value of Equity for Equity Granted that Forfeited/Failed to Meet Vesting Conditions | Total Change in Value of Equity
Mr. Larkin (Current PEO)
2024 | ($5,245,403) | $1,296,664 | $677,387 | $4,493,585 | $151,349 | $0 | $1,373,581
Average Non-PEO NEOs
2024 | ($891,768) | $243,121 | $101,730 | $765,511 | $9,931 | $0 | $228,525
Compensation Actually Paid vs. Total Shareholder Return | CAP Versus TSR |  |  |  |
Compensation Actually Paid vs. Net Income | CAP Versus Net Income |  |  |  |
Compensation Actually Paid vs. Company Selected Measure | CAP Versus Adjusted EBITDA |  |  |  |
Total Shareholder Return Vs Peer Group | CAP Versus TSR |  |  |  |
Tabular List, Table |
Most Important Performance Measures
Adjusted Earnings Before Interest, Taxes, Depreciation and Amortization (“Adjusted EBITDA”)
Adjusted Operating Cash Flow (Percent of Revenue)
Adjusted Return on Net Assets (“RONA”)
Relative TSR
Total Shareholder Return Amount | $ 343 | 197 | 134 | 146 | 99
Peer Group Total Shareholder Return Amount | 347 | 252 | 209 | 182 | 121
Net Income (Loss) | $ 126,300,000 | $ 43,600,000 | $ 83,300,000 | $ 10,100,000 | $ (145,100,000)
Company Selected Measure Amount | 374,800,000 | 288,100,000 | 194,600,000 | 146,700,000 | 184,400,000
PEO Name | Mr. Larkin | Mr. Larkin | Mr. Larkin |  |
Additional 402(v) Disclosure | The Pay Versus Performance Table reflects the required disclosures for fiscal years 2024, 2023, 2022, 2021, and 2020.Represents the GAAP net income attributable to Granite Construction Inc. for each applicable fiscal year end from 2020 to 2024. |  |  |  |
Measure:: 1 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Adjusted Earnings Before Interest, Taxes, Depreciation and Amortization (“Adjusted EBITDA”) |  |  |  |
Non-GAAP Measure Description | Adjusted EBITDA, a non-GAAP measure, is reflective of the Company’s ongoing core business operations. The Compensation Committee pre-approves adjustments annually. The following adjustments have been made to exclude the impact of certain charges such as acquisition, divestiture and restructuring expenses, impact of foreign currency, non-cash impairments, non-budgeted gains on sales, newly-adopted accounting standards, COVID-19 expenses, SEC investigation and other extraordinary legal costs, and losses on debt extinguishments. Consistent with SEC requirements, the tables below demonstrate the relationship between CAP versus performance for the years 2024, 2023, 2022, 2021 and 2020. |  |  |  |
Measure:: 2 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Adjusted Operating Cash Flow (Percent of Revenue) |  |  |  |
Measure:: 3 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Adjusted Return on Net Assets (“RONA”) |  |  |  |
Measure:: 4 |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Name | Relative TSR |  |  |  |
Larkin [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
PEO Total Compensation Amount | $ 7,726,356 | $ 4,224,356 | $ 2,122,477 | $ 2,363,579 | $ 904,545
PEO Actually Paid Compensation Amount | 9,099,937 | $ 4,925,501 | $ 1,971,387 | $ 2,606,656 | 1,182,867
PEO Name |  |  |  | Mr. Larkin |
Roberts [Member] |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
PEO Total Compensation Amount |  |  |  |  | 1,541,652
PEO Actually Paid Compensation Amount |  |  |  |  | $ 1,540,379
PEO Name |  |  |  | Mr. Roberts |
PEO | Equity Awards Adjustments |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 1,373,581 |  |  |  |
PEO | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | (5,245,403) |  |  |  |
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 | 1,296,664 |  |  |  |
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 | 677,387 |  |  |  |
PEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 4,493,585 |  |  |  |
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 | 151,349 |  |  |  |
PEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 0 |  |  |  |
Non-PEO NEO | Equity Awards Adjustments |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 228,525 |  |  |  |
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 | (891,768) |  |  |  |
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 | 243,121 |  |  |  |
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 | 101,730 |  |  |  |
Non-PEO NEO | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | 765,511 |  |  |  |
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 | 9,931 |  |  |  |
Non-PEO NEO | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year |  |  |  |  |
Pay vs Performance Disclosure |  |  |  |  |
Adjustment to Compensation, Amount | $ 0 |  |  |  |

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