Significant Accounting Policies and Estimates (Policies)	3 Months Ended
Apr. 27, 2024
Accounting Policies [Abstract]
Basis of Presentation	Dycom Industries, Inc. (“Dycom”, the “Company”, “we”, “our”, or “us”) is a leading provider of specialty contracting services throughout the United States. These services include program management; planning; engineering and design; aerial, underground, and wireless construction; maintenance; and fulfillment services for telecommunications providers. Additionally, Dycom provides underground facility locating services for various utilities, including telecommunications providers, and other construction and maintenance services for electric and gas utilities. Dycom supplies the labor, tools, and equipment necessary to provide these services to its customers.
Accounting Period	Accounting Period. Our fiscal year ends on the last Saturday in January. As a result, each fiscal year consists of either 52 weeks or 53 weeks of operations (with the additional week of operations occurring in the fourth quarter). Fiscal 2025 and fiscal 2024 each consist of 52 weeks of operations. The next 53 week fiscal period will occur in the fiscal year ending January 31, 2026.
Segment Information	Segment Information. The Company operates in one reportable segment. Its services are provided by its operating segments on a decentralized basis. Each operating segment consists of a subsidiary (or in certain instances, the combination of two or more subsidiaries), whose results are regularly reviewed by the Company’s Chief Executive Officer, the chief operating decision maker. All of the Company’s operating segments have been aggregated into one reportable segment based on their similar economic characteristics, nature of services and production processes, type of customers, and service distribution methods.
Use of Estimates	Use of Estimates. The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions that affect the amounts reported in these condensed consolidated financial statements and accompanying notes. These estimates are based on our historical experience and management’s understanding of current facts and circumstances. At the time they are made, we believe that such estimates are fair when considered in conjunction with the Company’s consolidated financial position and results of operations taken as a whole. However, actual results could differ materially from those estimates.
Per Share Data	Per Share Data. Basic earnings per common share is computed based on the weighted average number of common shares outstanding during the period, excluding unvested restricted share units. Diluted earnings per common share includes the weighted average number of common shares outstanding during the period and dilutive potential common shares arising from our stock-based awards (including unvested restricted share units) if their inclusion is dilutive under the treasury stock method. Common stock equivalents related to stock-based awards are excluded from diluted earnings per common share calculations if their effect would be anti-dilutive.
Recently Adopted Accounting Standards	Recently Adopted Accounting Standards Leases. In March 2023, the FASB issued ASU 2023-01, Leases (Topic 842): Common Control Arrangements. The amendments require all entities including public companies to amortize leasehold improvements associated with common control leases over the useful life to the common control group. ASU 2023-01 is effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. Early adoption is permitted for both interim and annual financial statements that have not yet been made available for issuance. If an entity adopts the amendments in an interim period, it must adopt them as of the beginning of the fiscal year that includes that interim period. Transition can be done either retrospectively or prospectively. We adopted the provisions of ASU 2023-01 in the first quarter of fiscal 2025 by electing to apply the guidance prospectively to all new leasehold improvements recognized on or after January 28, 2024. The adoption of this update did not have a material impact on our consolidated financial statements. Accounting Standards Not Yet Adopted Segment Reporting: Improvements to Reportable Segment Disclosures. In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. This ASU requires entities to disclose significant segment expenses, on an annual and interim basis, that are regularly provided to the chief operating decision maker, and an amount for other segment items by reportable segment, with a description of its composition. This ASU requires that a public entity that has a single reportable segment provide all the disclosures required by the amendments in this update and all existing segment disclosures in Topic 280. This ASU is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. A retrospective approach is required to be applied to all prior periods presented in the financial statements. We plan to adopt the provisions of ASU 2023-07 in the fourth quarter of fiscal 2025 and continue to evaluate the disclosure requirements related to the new standard. Income Taxes: Improvements to Income Tax Disclosures. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The ASU requires entities to disclose disaggregated information about their effective tax rate reconciliation as well as expanded information on income taxes paid by jurisdiction. The disclosure will be applied on a prospective basis, with the option to apply them retrospectively. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. We plan to adopt the provisions of ASU 2023-09 in fiscal 2026 and we are evaluating the disclosure requirements related to the new standard. All other new accounting pronouncements that have been issued but not yet effective are currently being evaluated and at this time are not expected to have a material impact on our financial position or results of operations.

Significant Accounting Policies and Estimates (Policies)

3 Months Ended

Apr. 27, 2024

Dycom Industries, Inc. (“Dycom”, the “Company”, “we”, “our”, or “us”) is a leading provider of specialty contracting services throughout the United States. These services include program management; planning; engineering and design; aerial, underground, and wireless construction; maintenance; and fulfillment services for telecommunications providers. Additionally, Dycom provides underground facility locating services for various utilities, including telecommunications providers, and other construction and maintenance services for electric and gas utilities. Dycom supplies the labor, tools, and equipment necessary to provide these services to its customers.

Accounting Period

Accounting Period. Our fiscal year ends on the last Saturday in January. As a result, each fiscal year consists of either 52 weeks or 53 weeks of operations (with the additional week of operations occurring in the fourth quarter). Fiscal 2025 and fiscal 2024 each consist of 52 weeks of operations. The next 53 week fiscal period will occur in the fiscal year ending January 31, 2026.

Segment Information

Segment Information. The Company operates in one reportable segment. Its services are provided by its operating segments on a decentralized basis. Each operating segment consists of a subsidiary (or in certain instances, the combination of two or more subsidiaries), whose results are regularly reviewed by the Company’s Chief Executive Officer, the chief operating decision maker. All of the Company’s operating segments have been aggregated into one reportable segment based on their similar economic characteristics, nature of services and production processes, type of customers, and service distribution methods.

Use of Estimates

Use of Estimates. The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions that affect the amounts reported in these condensed consolidated financial statements and accompanying notes. These estimates are based on our historical experience and management’s understanding of current facts and circumstances. At the time they are made, we believe that such estimates are fair when considered in conjunction with the Company’s consolidated financial position and results of operations taken as a whole. However, actual results could differ materially from those estimates.

Per Share Data

Per Share Data. Basic earnings per common share is computed based on the weighted average number of common shares outstanding during the period, excluding unvested restricted share units. Diluted earnings per common share includes the weighted average number of common shares outstanding during the period and dilutive potential common shares arising from our stock-based awards (including unvested restricted share units) if their inclusion is dilutive under the treasury stock method. Common stock equivalents related to stock-based awards are excluded from diluted earnings per common share calculations if their effect would be anti-dilutive.

Recently Adopted Accounting Standards

Leases. In March 2023, the FASB issued ASU 2023-01, Leases (Topic 842): Common Control Arrangements. The amendments require all entities including public companies to amortize leasehold improvements associated with common control leases over the useful life to the common control group. ASU 2023-01 is effective for fiscal years beginning after December 15, 2023, including interim periods within those fiscal years. Early adoption is permitted for both interim and annual financial statements that have not yet been made available for issuance. If an entity adopts the amendments in an interim period, it must adopt them as of the beginning of the fiscal year that includes that interim period. Transition can be done either retrospectively or prospectively. We adopted the provisions of ASU 2023-01 in the first quarter of fiscal 2025 by electing to apply the guidance prospectively to all new leasehold improvements recognized on or after January 28, 2024. The adoption of this update did not have a material impact on our consolidated financial statements.

Accounting Standards Not Yet Adopted

Segment Reporting: Improvements to Reportable Segment Disclosures. In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures. This ASU requires entities to disclose significant segment expenses, on an annual and interim basis, that are regularly provided to the chief operating decision maker, and an amount for other segment items by reportable segment, with a description of its composition. This ASU requires that a public entity that has a single reportable segment provide all the disclosures required by the amendments in this update and all existing segment disclosures in Topic 280. This ASU is effective for fiscal years beginning after December 15, 2023, and interim periods within fiscal years beginning after December 15, 2024, with early adoption permitted. A retrospective approach is required to be applied to all prior periods presented in the financial statements. We plan to adopt the provisions of ASU 2023-07 in the fourth quarter of fiscal 2025 and continue to evaluate the disclosure requirements related to the new standard.

Income Taxes: Improvements to Income Tax Disclosures. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The ASU requires entities to disclose disaggregated information about their effective tax rate reconciliation as well as expanded information on income taxes paid by jurisdiction. The disclosure will be applied on a prospective basis, with the option to apply them retrospectively. ASU 2023-09 is effective for fiscal years beginning after December 15, 2024, with early adoption permitted. We plan to adopt the provisions of ASU 2023-09 in fiscal 2026 and we are evaluating the disclosure requirements related to the new standard.

All other new accounting pronouncements that have been issued but not yet effective are currently being evaluated and at this time are not expected to have a material impact on our financial position or results of operations.

- Definition

Disclosure of accounting policy for segment reporting.

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