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Pay vs Performance Disclosure pure in Millions | 12 Months Ended
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Oct. 01, 2023 USD ($) | Oct. 02, 2022 USD ($) | Oct. 03, 2021 USD ($)
Pay vs Performance Disclosure |  |  |
Pay vs Performance Disclosure, Table | Pay versus Performance Disclosure Section 953(a) of the Dodd-Frank Wall Street Reform and Consumer Protection Act, and Item 402(v) of Regulation S-K, under the Securities Act prescribes the disclosure included in this section and does not necessarily align with how the Company views the link between the Company’s performance and NEO pay. Compensation actually paid (CAP), as determined under SEC requirements, does not reflect the actual amount of compensation earned by or paid to our NEOs during a covered fiscal year. Instead, CAP has been calculated in accordance with the new SEC rules, which include measurement of the changes in the fair value of equity awards. CAP is a supplemental measure to be viewed alongside, not in replacement of, performance measures, and for further information concerning the Company’s pay-for-performance philosophy and how the Company aligns executive compensation with the Company’s performance, please refer to the Compensation Discussion and Analysis. Pay versus Performance Table
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | Value of Initial Fixed $100 Invested Based On: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | Year1 | ​ | ​ | ​ | SCT Total Compensation for CEO | ​ | ​ | ​ | Compensation Actually Paid to CEO2 | ​ | ​ | ​ | Average SCT Total Compensation for Other NEOs | ​ | ​ | ​ | Average Compensation Actually Paid to Other NEOs3 | ​ | ​ | ​ | Company TSR | ​ | ​ | ​ | Peer Group4 | ​ | ​ | ​ | Net Income ($M) | ​ | ​ | ​ | Revenue ($M)5 | ​
​ | 2023 | ​ | ​ | ​ | $11,885,517 | ​ | ​ | ​ | $16,020,470 | ​ | ​ | ​ | $2,595,666 | ​ | ​ | ​ | $3,337,863 | ​ | ​ | ​ | $169.64 | ​ | ​ | ​ | $173.28 | ​ | ​ | ​ | $273.4 | ​ | ​ | ​ | $4,522.6 | ​
​ | 2022 | ​ | ​ | ​ | $10,331,897 | ​ | ​ | ​ | $9,306,681 | ​ | ​ | ​ | $2,318,379 | ​ | ​ | ​ | $2,065,988 | ​ | ​ | ​ | $142.49 | ​ | ​ | ​ | $140.27 | ​ | ​ | ​ | $263.1 | ​ | ​ | ​ | $3,504.0 | ​
​ | 2021 | ​ | ​ | ​ | $7,908,335 | ​ | ​ | ​ | $18,481,077 | ​ | ​ | ​ | $2,109,249 | ​ | ​ | ​ | $3,740,891 | ​ | ​ | ​ | $167.37 | ​ | ​ | ​ | $124.91 | ​ | ​ | ​ | $232.8 | ​ | ​ | ​ | $3,212.5 | ​
​ Notes: 1 The CEO and other NEOs for the indicated years were as follows: (i) for 2023, our CEO was Batrack and our other NEOs were Burdick, Shoemaker, Hopson, and Argus, (ii) for 2022, our CEO was Batrack and our other NEOs were Burdick, Shoemaker, Amidon, and Hopson, (iii) and for 2021, our CEO was Batrack and our other NEOs were Burdick, Shoemaker, Argus, and Hopson. 2 Amounts reported in this column are based on total compensation reported for our CEO in the Summary Compensation Table for the indicated fiscal years and adjusted as shown in the tables below. Fair value of equity awards was computed in accordance with the Company’s methodology used for financial reporting purposes.
​ | Fiscal Year | ​ | ​ | ​ | Summary Compensation Table Total | ​ | ​ | ​ | Adjustment to Summary Compensation Table Totala | ​ | ​ | ​ | Compensation Actually Paid | ​
​ | 2023 | ​ | ​ | ​ | $11,885,517 | ​ | ​ | ​ | $4,134,952 | ​ | ​ | ​ | $16,020,470 | ​
​ | 2022 | ​ | ​ | ​ | $10,331,897 | ​ | ​ | ​ | ($1,025,216) | ​ | ​ | ​ | $9,306,681 | ​
​ | 2021 | ​ | ​ | ​ | $7,908,335 | ​ | ​ | ​ | $10,572,742 | ​ | ​ | ​ | $18,481,077 | ​
a See table below for calculation of Adjustment to Summary Compensation Table Total
​ | Fiscal Year | ​ | ​ | ​ | Deduction of Grant Date Fair Value of Current Year Equity Awards | ​ | ​ | ​ | Addition of Fair Value of Current Year Equity Awards at FYE | ​ | ​ | ​ | Additions (Deductions) for Change in Value of Prior Years’ Awards Unvested at FYE | ​ | ​ | ​ | Additions (Deductions) for Change in Value of Prior Years’ Awards That Vested in Fiscal Year | ​ | ​ | ​ | Dollar Value of Dividends not Otherwise Reflected in the Fair Value for Covered Fiscal Year | ​ | ​ | ​ | Adjustment to Summary Compensation Table Total | ​
​ | 2023 | ​ | ​ | ​ | ($6,859,003) | ​ | ​ | ​ | $6,239,770 | ​ | ​ | ​ | $2,833,515 | ​ | ​ | ​ | $1,853,143 | ​ | ​ | ​ | $67,527 | ​ | ​ | ​ | $4,134,952 | ​
​ | 2022 | ​ | ​ | ​ | ($6,281,608) | ​ | ​ | ​ | $3,979,305 | ​ | ​ | ​ | ($1,831,074) | ​ | ​ | ​ | $3,024,666 | ​ | ​ | ​ | $83,495 | ​ | ​ | ​ | ($1,025,216) | ​
​ | 2021 | ​ | ​ | ​ | ($4,601,813) | ​ | ​ | ​ | $5,668,783 | ​ | ​ | ​ | $6,914,928 | ​ | ​ | ​ | $2,516,496 | ​ | ​ | ​ | $74,348 | ​ | ​ | ​ | $10,572,742 | ​
3 Amounts reported in this column are based on the average of the total compensation reported for our other NEOs in the Summary Compensation Table for the indicated fiscal years and adjusted as shown in the tables below. Fair value of equity awards was computed in accordance with the Company’s methodology used for financial reporting purposes.
​ | Fiscal Year | ​ | ​ | ​ | Average Summary Compensation Table Total | ​ | ​ | ​ | Adjustment to Average Summary Compensation Table Totalb | ​ | ​ | ​ | Average Compensation Actually Paid | ​
​ | 2023 | ​ | ​ | ​ | $2,595,666 | ​ | ​ | ​ | $742,198 | ​ | ​ | ​ | $3,337,863 | ​
​ | 2022 | ​ | ​ | ​ | $2,318,379 | ​ | ​ | ​ | ($252,392) | ​ | ​ | ​ | $2,065,988 | ​
​ | 2021 | ​ | ​ | ​ | $2,109,249 | ​ | ​ | ​ | $1,631,643 | ​ | ​ | ​ | $3,740,891 | ​
b See table below for calculation of Adjustment to Average Summary Compensation Table Total
​ | Fiscal Year | ​ | ​ | ​ | Deduction of Grant Date Fair Value of Current Year Equity | ​ | ​ | ​ | Addition of Fair Value of Current Year Equity Awards at FYE | ​ | ​ | ​ | Additions (Deductions) for Change in Value of Prior Years’ Awards Unvested at FYE | ​ | ​ | ​ | Additions (Deductions) for Change in Value of Prior Years’ Awards That Vested in Fiscal Year | ​ | ​ | ​ | Dollar Value of Dividends not Otherwise Reflected in the Fair Value for Covered Fiscal Year | ​ | ​ | ​ | Adjustment to Summary Compensation Table Total | ​
​ | 2023 | ​ | ​ | ​ | ($1,028,804) | ​ | ​ | ​ | $935,927 | ​ | ​ | ​ | $520,160 | ​ | ​ | ​ | $303,504 | ​ | ​ | ​ | $11,411 | ​ | ​ | ​ | $742,198 | ​
​ | 2022 | ​ | ​ | ​ | ($1,024,644) | ​ | ​ | ​ | $649,101 | ​ | ​ | ​ | ($335,039) | ​ | ​ | ​ | $441,571 | ​ | ​ | ​ | $16,620 | ​ | ​ | ​ | ($252,392) | ​
​ | 2021 | ​ | ​ | ​ | ($934,781) | ​ | ​ | ​ | $1,151,515 | ​ | ​ | ​ | $1,068,729 | ​ | ​ | ​ | $333,464 | ​ | ​ | ​ | $12,715 | ​ | ​ | ​ | $1,631,643 | ​
4 For each indicated covered year, the peer group was composed of the following companies: FY 2021: Booz Allen Hamilton Holding Co., CACI International, Dycom Industries, FTI Consulting, ICF International, KBR Inc., Leidos Holdings, ManTech International Corp., Parsons Corp., Science Applications International, Stantec Inc., and WSP Global FY 2022: Booz Allen Hamilton Holding Co., CACI International, Dycom Industries, FTI Consulting, ICF International, KBR Inc., Leidos Holdings, Parsons Corp., Science Applications International, Stantec Inc., and WSP Global FY 2023: Booz Allen Hamilton Holding Co., CACI International, Dycom Industries, FTI Consulting, ICF International, KBR Inc., Leidos Holdings, Parsons Corp., Science Applications International, Stantec Inc., and WSP Global 5 In accordance with SEC rules, the Company is required to include in the Pay versus Performance table the “most important” financial performance measure (as determined by the Company) used to link compensation actually paid to our named executive officers to Company performance for the most recently completed fiscal year. The Company determined revenue, which is a metric included in our incentive program, meets this requirement and therefore, we have included this performance measure in the Pay versus Performance table. |  |
Company Selected Measure Name | Revenue |  |
Named Executive Officers, Footnote | 1 The CEO and other NEOs for the indicated years were as follows: (i) for 2023, our CEO was Batrack and our other NEOs were Burdick, Shoemaker, Hopson, and Argus, (ii) for 2022, our CEO was Batrack and our other NEOs were Burdick, Shoemaker, Amidon, and Hopson, (iii) and for 2021, our CEO was Batrack and our other NEOs were Burdick, Shoemaker, Argus, and Hopson. |  |
Peer Group Issuers, Footnote | 4 For each indicated covered year, the peer group was composed of the following companies: FY 2021: Booz Allen Hamilton Holding Co., CACI International, Dycom Industries, FTI Consulting, ICF International, KBR Inc., Leidos Holdings, ManTech International Corp., Parsons Corp., Science Applications International, Stantec Inc., and WSP Global FY 2022: Booz Allen Hamilton Holding Co., CACI International, Dycom Industries, FTI Consulting, ICF International, KBR Inc., Leidos Holdings, Parsons Corp., Science Applications International, Stantec Inc., and WSP Global FY 2023: Booz Allen Hamilton Holding Co., CACI International, Dycom Industries, FTI Consulting, ICF International, KBR Inc., Leidos Holdings, Parsons Corp., Science Applications International, Stantec Inc., and WSP Global |  |
PEO Total Compensation Amount | $ 11,885,517 | $ 10,331,897 | $ 7,908,335
PEO Actually Paid Compensation Amount | $ 16,020,470 | 9,306,681 | 18,481,077
Adjustment To PEO Compensation, Footnote | 2 Amounts reported in this column are based on total compensation reported for our CEO in the Summary Compensation Table for the indicated fiscal years and adjusted as shown in the tables below. Fair value of equity awards was computed in accordance with the Company’s methodology used for financial reporting purposes.
​ | Fiscal Year | ​ | ​ | ​ | Summary Compensation Table Total | ​ | ​ | ​ | Adjustment to Summary Compensation Table Totala | ​ | ​ | ​ | Compensation Actually Paid | ​
​ | 2023 | ​ | ​ | ​ | $11,885,517 | ​ | ​ | ​ | $4,134,952 | ​ | ​ | ​ | $16,020,470 | ​
​ | 2022 | ​ | ​ | ​ | $10,331,897 | ​ | ​ | ​ | ($1,025,216) | ​ | ​ | ​ | $9,306,681 | ​
​ | 2021 | ​ | ​ | ​ | $7,908,335 | ​ | ​ | ​ | $10,572,742 | ​ | ​ | ​ | $18,481,077 | ​
a See table below for calculation of Adjustment to Summary Compensation Table Total
​ | Fiscal Year | ​ | ​ | ​ | Deduction of Grant Date Fair Value of Current Year Equity Awards | ​ | ​ | ​ | Addition of Fair Value of Current Year Equity Awards at FYE | ​ | ​ | ​ | Additions (Deductions) for Change in Value of Prior Years’ Awards Unvested at FYE | ​ | ​ | ​ | Additions (Deductions) for Change in Value of Prior Years’ Awards That Vested in Fiscal Year | ​ | ​ | ​ | Dollar Value of Dividends not Otherwise Reflected in the Fair Value for Covered Fiscal Year | ​ | ​ | ​ | Adjustment to Summary Compensation Table Total | ​
​ | 2023 | ​ | ​ | ​ | ($6,859,003) | ​ | ​ | ​ | $6,239,770 | ​ | ​ | ​ | $2,833,515 | ​ | ​ | ​ | $1,853,143 | ​ | ​ | ​ | $67,527 | ​ | ​ | ​ | $4,134,952 | ​
​ | 2022 | ​ | ​ | ​ | ($6,281,608) | ​ | ​ | ​ | $3,979,305 | ​ | ​ | ​ | ($1,831,074) | ​ | ​ | ​ | $3,024,666 | ​ | ​ | ​ | $83,495 | ​ | ​ | ​ | ($1,025,216) | ​
​ | 2021 | ​ | ​ | ​ | ($4,601,813) | ​ | ​ | ​ | $5,668,783 | ​ | ​ | ​ | $6,914,928 | ​ | ​ | ​ | $2,516,496 | ​ | ​ | ​ | $74,348 | ​ | ​ | ​ | $10,572,742 | ​
Non-PEO NEO Average Total Compensation Amount | $ 2,595,666 | 2,318,379 | 2,109,249
Non-PEO NEO Average Compensation Actually Paid Amount | $ 3,337,863 | 2,065,988 | 3,740,891
Adjustment to Non-PEO NEO Compensation Footnote | 3 Amounts reported in this column are based on the average of the total compensation reported for our other NEOs in the Summary Compensation Table for the indicated fiscal years and adjusted as shown in the tables below. Fair value of equity awards was computed in accordance with the Company’s methodology used for financial reporting purposes.
​ | Fiscal Year | ​ | ​ | ​ | Average Summary Compensation Table Total | ​ | ​ | ​ | Adjustment to Average Summary Compensation Table Totalb | ​ | ​ | ​ | Average Compensation Actually Paid | ​
​ | 2023 | ​ | ​ | ​ | $2,595,666 | ​ | ​ | ​ | $742,198 | ​ | ​ | ​ | $3,337,863 | ​
​ | 2022 | ​ | ​ | ​ | $2,318,379 | ​ | ​ | ​ | ($252,392) | ​ | ​ | ​ | $2,065,988 | ​
​ | 2021 | ​ | ​ | ​ | $2,109,249 | ​ | ​ | ​ | $1,631,643 | ​ | ​ | ​ | $3,740,891 | ​
b See table below for calculation of Adjustment to Average Summary Compensation Table Total
​ | Fiscal Year | ​ | ​ | ​ | Deduction of Grant Date Fair Value of Current Year Equity | ​ | ​ | ​ | Addition of Fair Value of Current Year Equity Awards at FYE | ​ | ​ | ​ | Additions (Deductions) for Change in Value of Prior Years’ Awards Unvested at FYE | ​ | ​ | ​ | Additions (Deductions) for Change in Value of Prior Years’ Awards That Vested in Fiscal Year | ​ | ​ | ​ | Dollar Value of Dividends not Otherwise Reflected in the Fair Value for Covered Fiscal Year | ​ | ​ | ​ | Adjustment to Summary Compensation Table Total | ​
​ | 2023 | ​ | ​ | ​ | ($1,028,804) | ​ | ​ | ​ | $935,927 | ​ | ​ | ​ | $520,160 | ​ | ​ | ​ | $303,504 | ​ | ​ | ​ | $11,411 | ​ | ​ | ​ | $742,198 | ​
​ | 2022 | ​ | ​ | ​ | ($1,024,644) | ​ | ​ | ​ | $649,101 | ​ | ​ | ​ | ($335,039) | ​ | ​ | ​ | $441,571 | ​ | ​ | ​ | $16,620 | ​ | ​ | ​ | ($252,392) | ​
​ | 2021 | ​ | ​ | ​ | ($934,781) | ​ | ​ | ​ | $1,151,515 | ​ | ​ | ​ | $1,068,729 | ​ | ​ | ​ | $333,464 | ​ | ​ | ​ | $12,715 | ​ | ​ | ​ | $1,631,643 | ​
Compensation Actually Paid vs. Total Shareholder Return |  |  |
Compensation Actually Paid vs. Net Income |  |  |
Compensation Actually Paid vs. Company Selected Measure |  |  |
Tabular List, Table | Company’s Most Important Financial Performance Measures The following were the most important financial performance measures (and non-financial performance measures), as determined by the Company, that link compensation actually paid to our NEOs to the Company’s performance for the most recently completed fiscal year. • Revenue ​ • Operating Income ​ • Earnings per Share ​ • Cash Provided by Operations ​ All of the information provided above under the “Pay Versus Performance Disclosure” heading will not be deemed to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended, whether made before or after the date hereof and irrespective of any general incorporation language in any such filing, except to the extent the Company specifically incorporates such information by reference. |  |
Total Shareholder Return Amount | $ 169.64 | 142.49 | 167.37
Peer Group Total Shareholder Return Amount | 173.28 | 140.27 | 124.91
Net Income (Loss) | $ 273,400,000 | $ 263,100,000 | $ 232,800,000
Company Selected Measure Amount | 4,522.6 | 3,504.0 | 3,212.5
PEO Name | Batrack |  |
Measure:: 1 |  |  |
Pay vs Performance Disclosure |  |  |
Name | Revenue |  |
Non-GAAP Measure Description | 5 In accordance with SEC rules, the Company is required to include in the Pay versus Performance table the “most important” financial performance measure (as determined by the Company) used to link compensation actually paid to our named executive officers to Company performance for the most recently completed fiscal year. The Company determined revenue, which is a metric included in our incentive program, meets this requirement and therefore, we have included this performance measure in the Pay versus Performance table. |  |
Measure:: 2 |  |  |
Pay vs Performance Disclosure |  |  |
Name | Operating Income |  |
Measure:: 3 |  |  |
Pay vs Performance Disclosure |  |  |
Name | Earnings per Share |  |
Measure:: 4 |  |  |
Pay vs Performance Disclosure |  |  |
Name | Cash Provided by Operations |  |
PEO | Total Net Adjustments For Equity Awards [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | $ 4,134,952 | $ (1,025,216) | $ 10,572,742
PEO | Equity Awards Value In Summary Compensation Table (Grant Date Value) [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | (6,859,003) | (6,281,608) | (4,601,813)
PEO | Total Equity Awards Adjustments [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 6,239,770 | 3,979,305 | 5,668,783
PEO | Change In Fair Value Of Outstanding And Unvested Awards Granted In Prior Fiscal Years [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 2,833,515 | (1,831,074) | 6,914,928
PEO | Change In Fair Value As Of Vesting Date Of Prior Year Awards Vested During Current Year [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 1,853,143 | 3,024,666 | 2,516,496
PEO | Dividends Or Other Earnings Paid On Equity Awards Not Otherwise Reflected In Fair Value [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 67,527 | 83,495 | 74,348
Non-PEO NEO | Total Net Adjustments For Equity Awards [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 742,198 | (252,392) | 1,631,643
Non-PEO NEO | Equity Awards Value In Summary Compensation Table (Grant Date Value) [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | (1,028,804) | (1,024,644) | (934,781)
Non-PEO NEO | Total Equity Awards Adjustments [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 935,927 | 649,101 | 1,151,515
Non-PEO NEO | Change In Fair Value Of Outstanding And Unvested Awards Granted In Prior Fiscal Years [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 520,160 | (335,039) | 1,068,729
Non-PEO NEO | Change In Fair Value As Of Vesting Date Of Prior Year Awards Vested During Current Year [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | 303,504 | 441,571 | 333,464
Non-PEO NEO | Dividends Or Other Earnings Paid On Equity Awards Not Otherwise Reflected In Fair Value [Member] |  |  |
Pay vs Performance Disclosure |  |  |
Adjustment to Compensation, Amount | $ 11,411 | $ 16,620 | $ 12,715

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