Nature Of Operations (Tables)

12 Months Ended

Dec. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule Of Segment Reporting Information

The following tables are presented at the level of disaggregation regularly reviewed by the CODM to evaluate operating performance and allocate resources to segments.

For the year ended 2024	Mineral Fiber			Architectural Specialties		Unallocated Corporate			Total
Net sales to external customers	$	986.0		$	459.7	$	-		$	1,445.7
Cost of goods sold		586.2			276.3		1.6			864.1
Gross profit (loss)		399.8			183.4		(1.6	)		581.6
SG&A expenses		180.8			126.7		1.0			308.5
Loss related to change in fair value of contingent consideration		0.2			1.4		-			1.6
Loss on sales of fixed assets, net		0.6			-		-			0.6
Equity (earnings) loss from unconsolidated affiliates, net		(104.3	)		-		0.9			(103.4	)
Segment operating income (loss)	$	322.5		$	55.3	$	(3.5	)	$	374.3
Segment assets	$	1,063.8		$	602.2	$	176.7		$	1,842.7
Investment in unconsolidated affiliates		22.6			-		4.6			27.2
Depreciation and amortization		80.2			23.0		-			103.2
Purchases of property, plant and equipment		64.3			18.5		-			82.8
For the year ended 2023	Mineral Fiber			Architectural Specialties		Unallocated Corporate			Total
Net sales to external customers	$	932.4		$	362.8	$	-		$	1,295.2
Cost of goods sold		574.1			222.4		1.7			798.2
Gross profit (loss)		358.3			140.4		(1.7	)		497.0
SG&A expenses		161.9			99.4		1.2			262.5
Loss related to change in fair value of contingent consideration		-			0.1		-			0.1
Equity (earnings) from unconsolidated affiliates, net		(89.3	)		-		-			(89.3	)
Segment operating income (loss)	$	285.7		$	40.9	$	(2.9	)	$	323.7
Segment assets	$	1,091.9		$	421.1	$	159.4		$	1,672.4
Investment in unconsolidated affiliates		17.4			-		-			17.4
Depreciation and amortization		75.3			13.9		-			89.2
Purchases of property, plant and equipment		67.2			16.6		-			83.8
For the year ended 2022	Mineral Fiber			Architectural Specialties		Unallocated Corporate			Total
Net sales to external customers	$	887.4		$	345.7	$	-		$	1,233.1
Cost of goods sold		559.4			222.3		2.3			784.0
Gross profit (loss)		328.0			123.4		(2.3	)		449.1
SG&A expenses		144.7			90.7		1.6			237.0
Loss related to change in fair value of contingent consideration		-			11.0		-			11.0
Equity (earnings) from unconsolidated affiliates, net		(77.6	)		-		-			(77.6	)
Segment operating income (loss)	$	260.9		$	21.7	$	(3.9	)	$	278.7
Segment assets	$	1,096.9		$	387.5	$	202.8		$	1,687.2
Investment in unconsolidated affiliates		23.9			-		-			23.9
Depreciation and amortization		69.5			14.2		-			83.7
Purchases of property, plant and equipment		63.8			11.0		-			74.8

In 2024, we sold an idled Mineral Fiber plant in St. Helens, Oregon for total proceeds of $9.4 million, with a $4.6 million gain recorded upon sale. Also in 2024, we sold a parcel of undeveloped land adjacent to our corporate campus in Lancaster, Pennsylvania within our Mineral Fiber segment for total proceeds of $12.8 million. Upon classification to held for sale during the third quarter of 2024, we recognized an impairment loss of $4.9 million and during the fourth quarter of 2024 we recognized a $0.3 million loss upon sale. Finally, in 2024 we sold a building and related land of an Architectural Specialties design center in Chicago, Illinois for total proceeds of $2.1 million, with no gain or loss recorded upon sale. The impact of these transactions is recorded within loss on sales of fixed assets, net on our Consolidated Statements of Earnings and Comprehensive Income.

Reconciliation Of Total Consolidated Operating Income To Earnings Before Income Taxes

The following reconciles our total consolidated operating income to earnings (loss) from continuing operations before income taxes. These items are only measured and managed on a consolidated basis:

	2024			2023			2022
Total consolidated operating income	$	374.3		$	323.7		$	278.7
Interest expense		39.8			35.3			27.1
Other non-operating (income), net		(12.6	)		(9.9	)		(6.0	)
Earnings from continuing operations before income taxes	$	347.1		$	298.3		$	257.6

Schedule Of Sales Allocated To Geographic Area

The sales in the table below are allocated to geographic areas based on the location of our selling entities.

	2024		2023		2022
Geographic Areas
Net sales
Mineral Fiber:
United States	$	909.5	$	854.2	$	816.3
Canada		76.5		78.2		71.1
Total Mineral Fiber		986.0		932.4		887.4
Architectural Specialties:
United States		448.8		349.3		322.1
Canada		10.9		13.5		23.6
Total Architectural Specialties		459.7		362.8		345.7
Total net sales	$	1,445.7	$	1,295.2	$	1,233.1

Schedule Of Property, Plant And Equipment Allocated To Geographic Area

	2024		2023
Property, plant and equipment, net as of December 31,
Mineral Fiber:
United States	$	477.9	$	494.9
Total Mineral Fiber		477.9		494.9
Architectural Specialties:
United States		116.6		66.5
Canada		4.3		5.0
Total Architectural Specialties		120.9		71.5
Total property, plant and equipment, net	$	598.8	$	566.4