Organization, Business and Basis of Presentation (Policies)	3 Months Ended
Mar. 31, 2025
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Interim Consolidated Financial Information	Interim Consolidated Financial Information The accompanying unaudited consolidated financial statements of the Company were prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial reporting pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to the rules and regulations of the SEC. The Company believes that the disclosures made are adequate to make the information presented not misleading. In the opinion of management, all adjustments, consisting only of normal recurring adjustments, necessary to fairly state the financial position, results of operations, comprehensive income (loss), shareholders’ equity and cash flows with respect to the interim consolidated financial statements, have been included. Certain reclassifications were made to prior year amounts to conform to the current year presentation. The consolidated balance sheet as of December 31, 2024 has been derived from the audited financial statements as of that date. The results of operations and comprehensive income (loss) are not necessarily indicative of the results for the full year or the results for any future periods. These financial statements should be read in conjunction with the audited financial statements and related notes for the year ended December 31, 2024, included in the Company’s Annual Report on Form 10-K, which was filed with the SEC on February 26, 2025 (the "2024 Annual Report").
Use of Estimates	Use of Estimates The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and revenues and expenses during the period reported. Actual results could differ from those estimates. The most significant estimates are related to estimates of costs to complete contracts, variable consideration inclusive of pending change orders and claims, shared savings, insurance reserves, income tax reserves, estimates surrounding stock-based compensation, the recoverability of goodwill and intangibles and allowance for doubtful accounts. The Company estimates a cost accrual every quarter that represents costs incurred but not invoiced for services performed or goods delivered during the period, and estimates revenue from the contract cost portion of these accruals based on current gross margin rates to be consistent with its cost method of revenue recognition. The Company estimates costs to complete on fixed price contracts which are determined on an individual contract basis by evaluating each project’s status as of the balance sheet date, and using our historical experience with the level of effort required to complete the underlying project. Claims and change orders are measured based on our historical experience with individual customers and similar contracts, and are evaluated by management individually. The Company includes these estimated amounts of variable consideration to the extent that it is probable there will not be a significant reversal of revenue. Some of the Company’s contracts may have contract terms that include variable consideration such as safety or performance bonuses or liquidated damages. The Company includes the estimated amount of variable consideration in the transaction price only to the extent that it is probable that a significant reversal in the amount of cumulative recognized revenue will not occur when the final outcome of the variable consideration is determined. In contracts in which a significant reversal may occur, the Company uses constraint in recognizing revenue on variable consideration. The Company often enters into contracts that contain liquidated damage clauses. The Company does not include amounts associated with liquidated damage clauses until it is probable that liquidated damages will occur. These items are continually monitored by multiple levels of management throughout the reporting period. As of March 31, 2025 and December 31, 2024, the Company had recognized revenues of $36.0 million and $46.0 million, respectively, related to large change orders and/or claims that had been included as contract price adjustments on certain contracts, some of which are multi-year projects. These change orders and/or claims are in the process of being negotiated in the normal course of business, and a portion of these recognized revenues had been included in multiple periods. The cost-to-cost method of accounting requires the Company to make estimates about the expected revenue and gross profit on each of its contracts in process. During the three months ended March 31, 2025, net changes in estimates pertaining to certain projects decreased consolidated gross margin by 1.1%, which resulted in decreases in operating income of $8.7 million, net income of $6.3 million and diluted earnings per common share of $0.39. Additional discussion on the impact of these estimate changes can be found in Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Consolidated Results of Operations.” During the three months ended March 31, 2024, net changes in estimates pertaining to certain projects decreased consolidated gross margin by 1.2%, which resulted in decreases in operating income of $9.8 million, net income of $6.9 million and diluted earnings per common share of $0.41.
Foreign Currency	Foreign Currency The functional currency for the Company’s Canadian operations is the Canadian dollar. Assets and liabilities denominated in Canadian dollars are translated into U.S. dollars at the end-of-period exchange rate. Revenues and expenses are translated using average exchange rates for the periods reported. Equity accounts are translated at historical rates. Cumulative translation adjustments are included as a separate component of accumulated other comprehensive income (loss) in shareholders’ equity. Foreign currency transaction gains and losses, arising primarily from changes in exchange rates on short-term monetary assets and liabilities, and intercompany loans that are not deemed long-term investment accounts are recorded in the “other income (expense), net” line on the Company’s consolidated statements of operations. Foreign currency losses, recorded in other income (expense), net, for the three months ended March 31, 2025 and 2024 were $0.3 million. Foreign currency translation gains and losses, arising from intercompany loans that are deemed long-term investment accounts, are recorded in the foreign currency translation adjustment line on the Company’s consolidated statements of comprehensive income.
Recent Accounting Pronouncements	Recent Accounting Pronouncements Changes to U.S. GAAP are typically established by the Financial Accounting Standards Board (“FASB”) in the form of accounting standards updates (“ASUs”) to the FASB’s Accounting Standards Codification (“ASC”). The Company considers the applicability and impact of all ASUs. The Company, based on its assessment, determined that any recently issued or proposed ASUs not listed below are either not applicable to the Company or will have minimal impact on its financial statements when adopted. In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which is intended to improve the transparency of income tax disclosures by requiring consistent categories and greater disaggregation of information in the rate reconciliation and income taxes paid disaggregated by jurisdiction. The guidance also includes certain other amendments intended to improve the effectiveness of income tax disclosures. The update is effective for annual reporting periods beginning after December 15, 2024, with early adoption permitted. The amendments in this pronouncement should be applied on a prospective basis, with the option to apply them retrospectively. The Company is currently evaluating the impact of the new standard on the Company’s income tax disclosures. In November 2024, the FASB issued ASU No. 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires the disaggregation of certain expenses in the notes of the financials, to provide enhanced transparency into the expense captions presented on the face of the income statement. The guidance will require disclosure of certain costs and expenses on an interim and annual basis in the notes to the consolidated financial statements. The update is effective for annual reporting periods beginning after December 15, 2026 and interim periods within annual reporting periods beginning after December 15, 2027, with early adoption permitted. The amendments in this pronouncement should be applied either (i) prospectively to financial statements issued for reporting periods after the effective date or (ii) retrospectively to any or all prior periods presented in the financial statements. The Company is currently evaluating the impact of the new standard on the Company’s consolidated financial statements and related disclosures.
Fair Value Measurements	Fair Value Measurements The Company uses the three-tier hierarchy of fair value measurement, which prioritizes the inputs used in measuring fair value based upon their degree of availability in external active markets. These tiers include: Level 1 (the highest priority), defined as observable inputs, such as quoted prices in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3 (the lowest priority), defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions.
Earnings Per Share	Earnings Per Share The Company computes earnings per share using the treasury stock method. Under the treasury stock method, basic earnings per share are computed by dividing net income by the weighted average number of common shares outstanding during the period, and diluted earnings per share are computed by dividing net income by the weighted average number of common shares outstanding during the period plus all potentially dilutive common stock equivalents, except in cases where the effect of the common stock equivalent would be anti-dilutive.

Organization, Business and Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2025

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Interim Consolidated Financial Information

The accompanying unaudited consolidated financial statements of the Company were prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial reporting pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to the rules and regulations of the SEC. The Company believes that the disclosures made are adequate to make the information presented not misleading. In the opinion of management, all adjustments, consisting only of normal recurring adjustments, necessary to fairly state the financial position, results of operations, comprehensive income (loss), shareholders’ equity and cash flows with respect to the interim consolidated financial statements, have been included. Certain reclassifications were made to prior year amounts to conform to the current year presentation. The consolidated balance sheet as of December 31, 2024 has been derived from the audited financial statements as of that date. The results of operations and comprehensive income (loss) are not necessarily indicative of the results for the full year or the results for any future periods. These financial statements should be read in conjunction with the audited financial statements and related notes for the year ended December 31, 2024, included in the Company’s Annual Report on Form 10-K, which was filed with the SEC on February 26, 2025 (the "2024 Annual Report").

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, the disclosure of contingent assets and liabilities at the date of the financial statements and revenues and expenses during the period reported. Actual results could differ from those estimates.

The most significant estimates are related to estimates of costs to complete contracts, variable consideration inclusive of pending change orders and claims, shared savings, insurance reserves, income tax reserves, estimates surrounding stock-based compensation, the recoverability of goodwill and intangibles and allowance for doubtful accounts. The Company estimates a cost accrual every quarter that represents costs incurred but not invoiced for services performed or goods delivered during the period, and estimates revenue from the contract cost portion of these accruals based on current gross margin rates to be consistent with its cost method of revenue recognition.

The Company estimates costs to complete on fixed price contracts which are determined on an individual contract basis by evaluating each project’s status as of the balance sheet date, and using our historical experience with the level of effort required to complete the underlying project. Claims and change orders are measured based on our historical experience with individual customers and similar contracts, and are evaluated by management individually. The Company includes these estimated amounts of variable consideration to the extent that it is probable there will not be a significant reversal of revenue.

Some of the Company’s contracts may have contract terms that include variable consideration such as safety or performance bonuses or liquidated damages. The Company includes the estimated amount of variable consideration in the transaction price only to the extent that it is probable that a significant reversal in the amount of cumulative recognized revenue will not occur when the final outcome of the variable consideration is determined. In contracts in which a significant reversal may occur, the Company uses constraint in recognizing revenue on variable consideration. The Company often enters into contracts that contain liquidated damage clauses. The Company does not include amounts associated with liquidated damage clauses until it is probable that liquidated damages will occur. These items are continually monitored by multiple levels of management throughout the reporting period.

As of March 31, 2025 and December 31, 2024, the Company had recognized revenues of $36.0 million and $46.0 million, respectively, related to large change orders and/or claims that had been included as contract price adjustments on certain contracts, some of which are multi-year projects. These change orders and/or claims are in the process of being negotiated in the normal course of business, and a portion of these recognized revenues had been included in multiple periods.

The cost-to-cost method of accounting requires the Company to make estimates about the expected revenue and gross profit on each of its contracts in process. During the three months ended March 31, 2025, net changes in estimates pertaining to certain projects decreased consolidated gross margin by 1.1%, which resulted in decreases in operating income of $8.7 million, net income of $6.3 million and diluted earnings per common share of $0.39. Additional discussion on the impact of these estimate changes can be found in Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations - Consolidated Results of Operations.”

During the three months ended March 31, 2024, net changes in estimates pertaining to certain projects decreased consolidated gross margin by 1.2%, which resulted in decreases in operating income of $9.8 million, net income of $6.9 million and diluted earnings per common share of $0.41.

Foreign Currency

The functional currency for the Company’s Canadian operations is the Canadian dollar. Assets and liabilities denominated in Canadian dollars are translated into U.S. dollars at the end-of-period exchange rate. Revenues and expenses are translated using average exchange rates for the periods reported. Equity accounts are translated at historical rates. Cumulative translation adjustments are included as a separate component of accumulated other comprehensive income (loss) in shareholders’ equity. Foreign currency transaction gains and losses, arising primarily from changes in exchange rates on short-term monetary assets and liabilities, and intercompany loans that are not deemed long-term investment accounts are recorded in the “other income (expense), net” line on the Company’s consolidated statements of operations. Foreign currency losses, recorded in other income (expense), net, for the three months ended March 31, 2025 and 2024 were $0.3 million. Foreign currency translation gains and losses, arising from intercompany loans that are deemed long-term investment accounts, are recorded in the foreign currency translation adjustment line on the Company’s consolidated statements of comprehensive income.

Recent Accounting Pronouncements

Changes to U.S. GAAP are typically established by the Financial Accounting Standards Board (“FASB”) in the form of accounting standards updates (“ASUs”) to the FASB’s Accounting Standards Codification (“ASC”). The Company considers the applicability and impact of all ASUs. The Company, based on its assessment, determined that any recently issued or proposed ASUs not listed below are either not applicable to the Company or will have minimal impact on its financial statements when adopted.

In December 2023, the FASB issued ASU No. 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which is intended to improve the transparency of income tax disclosures by requiring consistent categories and greater disaggregation of information in the rate reconciliation and income taxes paid disaggregated by jurisdiction. The guidance also includes certain other amendments intended to improve the effectiveness of income tax disclosures. The update is effective for annual reporting periods beginning after December 15, 2024, with early adoption permitted. The amendments in this pronouncement should be applied on a prospective basis, with the option to apply them retrospectively. The Company is currently evaluating the impact of the new standard on the Company’s income tax disclosures.

In November 2024, the FASB issued ASU No. 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses, which requires the disaggregation of certain expenses in the notes of the financials, to provide enhanced transparency into the expense captions presented on the face of the income statement. The guidance will require disclosure of certain costs and expenses on an interim and annual basis in the notes to the consolidated financial statements. The update is effective for annual reporting periods beginning after December 15, 2026 and interim periods within annual reporting periods beginning after December 15, 2027, with early adoption permitted. The amendments in this pronouncement should be applied either (i) prospectively to financial statements issued for reporting periods after the effective date or (ii) retrospectively to any or all prior periods presented in the financial statements. The Company is currently evaluating the impact of the new standard on the Company’s consolidated financial statements and related disclosures.

Fair Value Measurements

The Company uses the three-tier hierarchy of fair value measurement, which prioritizes the inputs used in measuring fair value based upon their degree of availability in external active markets. These tiers include: Level 1 (the highest priority), defined as observable inputs, such as quoted prices in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3 (the lowest priority), defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions.

Earnings Per Share

The Company computes earnings per share using the treasury stock method. Under the treasury stock method, basic earnings per share are computed by dividing net income by the weighted average number of common shares outstanding during the period, and diluted earnings per share are computed by dividing net income by the weighted average number of common shares outstanding during the period plus all potentially dilutive common stock equivalents, except in cases where the effect of the common stock equivalent would be anti-dilutive.