Segments

3 Months Ended

Mar. 31, 2023

Segment Reporting [Abstract]

Segments

9.Segments

The Building Materials business contains two reportable segments: the East Group and the West Group. The Company also has a Magnesia Specialties segment. The Company’s evaluation of performance and allocation of resources are based primarily on earnings from operations. Consolidated earnings from operations include total revenues less cost of revenues; selling, general and administrative expenses; acquisition and integration expenses; other operating income and expenses, net; and exclude interest expense; other nonoperating income and expenses, net; and income tax expense. Corporate loss from operations primarily includes depreciation; expenses for corporate administrative functions; acquisition and integration expenses; and other nonrecurring income and expenses not attributable to operations of the Company's other operating segments. All long-term debt and related interest expense are held at Corporate.

The following table displays selected financial data for the Company’s reportable segments. Total revenues, as presented on the consolidated statements of earnings and comprehensive earnings, reflect the elimination of intersegment revenues, which represent sales from one segment to another segment. Total revenues and earnings (loss) from operations reflect continuing operations only.

	Three Months Ended
	March 31,
	2023			2022
	(Dollars in Millions)
Total revenues:
East Group	$	529.6		$	418.8
West Group		741.1			735.0
Total Building Materials business		1,270.7			1,153.8
Magnesia Specialties		83.4			77.0
Total	$	1,354.1		$	1,230.8
Earnings (Loss) from operations:
East Group	$	108.9		$	28.0
West Group		94.7			43.0
Total Building Materials business		203.6			71.0
Magnesia Specialties		20.6			21.5
Corporate		(28.1	)		(32.6	)
Total	$	196.1		$	59.9