Acquisitions and Dispositions	3 Months Ended
Mar. 31, 2026
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]
Acquisitions and Dispositions	Acquisitions and Dispositions Acquisitions The following acquisitions were accounted for as business combinations in accordance with ASC 805 - Business Combinations. The results of the business combinations have been included in the Company's Consolidated Financial Statements beginning on the acquisition dates. Pro forma financial amounts reflecting the effects of the business combinations are not presented, as none of these business combinations, individually or in the aggregate, were material to our financial position or results of operations. Acquisitions are also subject to customary adjustments based on, among other things, the amount of cash, debt and working capital in the business as of the closing date. The amounts included in the Consolidated Balance Sheets for these adjustments are considered provisional until final settlement has occurred. As of March 31, 2026, the estimated fair value of the assets acquired and liabilities for the acquisitions completed in 2026 were considered provisional as we continue to gather information to finalize the valuation of these assets and liabilities. The fair values are considered provisional until final fair values are determined during the measurement period. We expect to record adjustments as we accumulate the information needed to estimate the fair value of assets acquired and liabilities assumed, including working capital balances, estimated fair value of identifiable intangible assets, property, plant and equipment, total consideration and goodwill. We will utilize market and cost approaches to estimate the fair value of the property, plant and equipment, excluding aggregate reserves. The fair value of aggregate reserves and intangible assets are determined using the income approach. All estimates, key assumptions, and forecasts were either provided by or reviewed by management. We have engaged third-party valuation firms to assist in the analysis and valuation of certain assets. While we chose to utilize third-party valuation firms, the fair value analysis and related valuations represent the conclusions of management and not the conclusions or statements of any third party. The excess of the total purchase price over the fair value of assets acquired and liabilities assumed has been allocated to goodwill. We believe that the goodwill relates to several factors, including potential synergies related to market opportunities for multiple product offerings and economies of scale expected from combining our operations with the businesses acquired. During the first three months of 2026, we completed the following three acquisitions: •Two Montana aggregates-based operations within the Mountain segment; one operation consists of a ready-mix concrete business supported by owned aggregate reserves, while the other includes owned aggregate reserves, ready-mix operations and precast concrete manufacturing capabilities. •A Utah aggregates-based company in the Mountain segment that consists of owned aggregate reserves, asphalt production and contracting services; this acquisition expanded our footprint into a new state. The aggregated purchase consideration for these three acquisitions was $174.2 million, net of cash assumed, and subject to post-closing adjustments. These acquisitions were not considered material separately or in the aggregate. The acquisitions resulted in the recognition of $8.6 million of current assets; $120.8 million of assets in property, plant and equipment; $54.2 million of goodwill; $5.3 million of intangible assets, which included $4.1 million of backlog and $1.2 million of customer relationships; $8.5 million deferred income tax liability; $5.7 million of current liabilities; and $547,000 of noncurrent liabilities - other. The revenue and net income (loss) of these acquisitions was immaterial for the three months ended March 31, 2026. During 2025, we completed five acquisitions with an aggregated purchase price of $622.2 million, subject to future post-closing adjustments. As of March 31, 2026, the purchase accounting was complete on three of the acquisitions and no material adjustments were needed. During the first quarter of 2026, we recorded a reduction to goodwill of $780,000, related to an increase of $3.0 million in intangibles and a decrease of $2.2 million in property, plant and equipment for acquisitions completed in 2025. For the three months ended March 31, 2026 and 2025, we incurred acquisition-related costs on completed and other potential acquisitions of $2.0 million and $5.3 million, respectively. These costs are included in our Corporate Services in selling, general and administrative expenses on the Consolidated Statement of Operations. Dispositions On March 7, 2025, we sold four ready-mix plant operations for total proceeds of $14.5 million. The ready-mix plant operations were acquired by us as part of the Strata acquisition and subsequently sold to a third-party. The ready-mix plants were included in assets held for sale on the opening balance sheet for Strata at the time of the acquisition.

The following acquisitions were accounted for as business combinations in accordance with ASC 805 - Business Combinations. The results of the business combinations have been included in the Company's Consolidated Financial Statements beginning on the acquisition dates. Pro forma financial amounts reflecting the effects of the business combinations are not presented, as none of these business combinations, individually or in the aggregate, were material to our financial position or results of operations.

Acquisitions are also subject to customary adjustments based on, among other things, the amount of cash, debt and working capital in the business as of the closing date. The amounts included in the Consolidated Balance Sheets for these adjustments are considered provisional until final settlement has occurred.

As of March 31, 2026, the estimated fair value of the assets acquired and liabilities for the acquisitions completed in 2026 were considered provisional as we continue to gather information to finalize the valuation of these assets and liabilities. The fair values are considered provisional until final fair values are determined during the measurement period. We expect to record adjustments as we accumulate the information needed to estimate the fair value of assets acquired and liabilities assumed, including working capital balances, estimated fair value of identifiable intangible assets, property, plant and equipment, total consideration and goodwill. We will utilize market and cost approaches to estimate the fair value of the property, plant and equipment, excluding aggregate reserves. The fair value of aggregate reserves and intangible assets are determined using the income approach. All estimates, key assumptions, and forecasts were either provided by or reviewed by management. We have engaged third-party valuation firms to assist in the analysis and valuation of certain assets. While we chose to utilize third-party valuation firms, the fair value analysis and related valuations represent the conclusions of management and not the conclusions or statements of any third party.

The excess of the total purchase price over the fair value of assets acquired and liabilities assumed has been allocated to goodwill. We believe that the goodwill relates to several factors, including potential synergies related to market opportunities for multiple product offerings and economies of scale expected from combining our operations with the businesses acquired.

•Two Montana aggregates-based operations within the Mountain segment; one operation consists of a ready-mix concrete business supported by owned aggregate reserves, while the other includes owned aggregate reserves, ready-mix operations and precast concrete manufacturing capabilities.

The aggregated purchase consideration for these three acquisitions was $174.2 million, net of cash assumed, and subject to post-closing adjustments. These acquisitions were not considered material separately or in the aggregate. The acquisitions resulted in the recognition of $8.6 million of current assets; $120.8 million of assets in property, plant and equipment; $54.2 million of goodwill; $5.3 million of intangible assets, which included $4.1 million of backlog and $1.2 million of customer relationships; $8.5 million deferred income tax liability; $5.7 million of current liabilities; and $547,000 of noncurrent liabilities - other. The revenue and net income (loss) of these acquisitions was immaterial for the three months ended March 31, 2026.

During 2025, we completed five acquisitions with an aggregated purchase price of $622.2 million, subject to future post-closing adjustments. As of March 31, 2026, the purchase accounting was complete on three of the acquisitions and no material adjustments were needed. During the first quarter of 2026, we recorded a reduction to goodwill of $780,000, related to an increase of $3.0 million in intangibles and a decrease of $2.2 million in property, plant and equipment for acquisitions completed in 2025.

For the three months ended March 31, 2026 and 2025, we incurred acquisition-related costs on completed and other potential acquisitions of $2.0 million and $5.3 million, respectively. These costs are included in our Corporate Services in selling, general and administrative expenses on the Consolidated Statement of Operations.

On March 7, 2025, we sold four ready-mix plant operations for total proceeds of $14.5 million. The ready-mix plant operations were acquired by us as part of the Strata acquisition and subsequently sold to a third-party. The ready-mix plants were included in assets held for sale on the opening balance sheet for Strata at the time of the acquisition.