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- Definition

Business acquisition effective date of acquisition month and year.

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Business combination number of California ready mix operations.

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- Definition

Cash used for operating and investing activities for discontinued operations.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount of capital expenditure attributable to discontinued operations.

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Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

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Amount of increase (decrease) to assets, excluding financial assets and goodwill, lacking physical substance with a finite life for purchase accounting adjustments.

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- Definition

Amount of gain (loss) from sale and disposal of integrated set of activities and assets capable of being conducted and managed for purpose of providing return in form of dividend, lower cost, or other economic benefit to investor, owner, member and participant.

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- Definition

Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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Business Combinations, Discontinued Operations, Divestitures and Assets and Liabilities Held for Sale - Additional Information (Detail) $ in Millions						3 Months Ended		6 Months Ended	9 Months Ended
	Jul. 15, 2022 USD ($)	Apr. 01, 2022 USD ($)	Oct. 01, 2021 USD ($)	Jul. 30, 2021	Apr. 30, 2021	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) Plant	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Aug. 09, 2022 USD ($)
Business Acquisition [Line Items]
Assumed asset retirement obligations liability						$ 171.4			$ 293.8
Total Revenues						1,811.7	$ 1,557.3		4,684.2	$ 3,917.6
Cash used for operating and investing activities for discontinued operations									200.9
Proceeds from divestitures									249.9
Capital expenditures									13.2
Business combination number of California ready mix operations \| Plant								14
Total Revenues								$ 235.0			$ 350.0
Interest payable	$ 15.0
Goodwill Increased						171.4			293.8
Colorado and Central Texas
Business Acquisition [Line Items]
Pretax gain		$ 151.9							$ 151.9
Lehigh West Region
Business Acquisition [Line Items]
Business combination, effective date			2021-10
Cash transferred in business combination			$ 2,260.0
Intangible assets fair value adjustment						119.5
Asset retirement obligations and other liabilities purchase accounting adjustments						50.9
Southern Crushed Concrete
Business Acquisition [Line Items]
Business combination, effective date				2021-07
Assumed asset retirement obligations liability						64.5
Intangible assets fair value adjustment						64.0
Goodwill Increased						$ 64.5
Tiller Corporation
Business Acquisition [Line Items]
Business combination, effective date					2021-04