Capital Stock	6 Months Ended
Aug. 01, 2026
Stockholders' Equity Note [Abstract]
Capital Stock	Capital Stock Repurchases of Common Stock. On February 26, 2025, the Company announced that its Board of Directors authorized a new $150 million program to repurchase shares of the Company’s outstanding common stock through August 25, 2026 in open market or private transactions. During the three months ended May 2, 2026, the Company repurchased 100,000 shares of common stock, at an average price of $359.63, for $36.0 million. There were no share repurchases during the three months ended August 1, 2026. As of August 1, 2026, $83.9 million of the authorization was available for repurchases. Restricted Stock Tax Withholdings. During the six months ended August 1, 2026 and July 26, 2025, we withheld 85,783 shares totaling $29.4 million and 84,296 shares totaling $13.0 million, respectively, to meet payroll tax withholding obligations arising from the vesting of restricted share units. All shares withheld have been cancelled. Shares of common stock withheld for tax withholdings do not reduce our total share repurchase authority. Upon cancellation of shares repurchased or withheld for tax withholdings, the excess over par value is recorded as a reduction of additional paid-in capital until the balance is reduced to zero, with any additional excess recorded as a reduction of retained earnings. Issuance of Common Stock for Acquisition. In connection with the acquisition of National Technology Integrators on July 2, 2026, the Company issued 95,550 shares of Dycom common stock to the sellers valued at $45.0 million, as partial consideration for the purchase. These shares were issued in a private placement exempt from registration under the Securities Act of 1933.

Repurchases of Common Stock. On February 26, 2025, the Company announced that its Board of Directors authorized a new $150 million program to repurchase shares of the Company’s outstanding common stock through August 25, 2026 in open market or private transactions. During the three months ended May 2, 2026, the Company repurchased 100,000 shares of common stock, at an average price of $359.63, for $36.0 million. There were no share repurchases during the three months ended August 1, 2026. As of August 1, 2026, $83.9 million of the authorization was available for repurchases.

Restricted Stock Tax Withholdings. During the six months ended August 1, 2026 and July 26, 2025, we withheld 85,783 shares totaling $29.4 million and 84,296 shares totaling $13.0 million, respectively, to meet payroll tax withholding obligations arising from the vesting of restricted share units. All shares withheld have been cancelled. Shares of common stock withheld for tax withholdings do not reduce our total share repurchase authority.

Upon cancellation of shares repurchased or withheld for tax withholdings, the excess over par value is recorded as a reduction of additional paid-in capital until the balance is reduced to zero, with any additional excess recorded as a reduction of retained earnings.

Issuance of Common Stock for Acquisition. In connection with the acquisition of National Technology Integrators on July 2, 2026, the Company issued 95,550 shares of Dycom common stock to the sellers valued at $45.0 million, as partial consideration for the purchase. These shares were issued in a private placement exempt from registration under the Securities Act of 1933.