Segment Results (Tables)

6 Months Ended

Jun. 30, 2025

Segment Reporting [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 operating segments:


For the three months ended June 30, 2025		Mineral Fiber				Architectural Specialties				Unallocated Corporate				Total
Net sales to external customers		$	267.0			$	157.6			$	-			$	424.6
Cost of goods sold			156.7				91.8				0.3				248.8
Gross profit (loss)			110.3				65.8				(0.3	)			175.8
SG&A expenses			44.0				40.2				0.3				84.5
Equity (earnings) loss from unconsolidated affiliates, net			(32.1	)			-				0.2				(31.9	)
Segment operating income (loss)		$	98.4			$	25.6			$	(0.8	)		$	123.2

Depreciation and amortization		$	22.1			$	8.4			$	-			$	30.5
Purchases of property, plant and equipment			16.8				3.1				-				19.9


For the three months ended June 30, 2024		Mineral Fiber				Architectural Specialties				Unallocated Corporate				Total
Net sales to external customers		$	250.2			$	114.9			$	-			$	365.1
Cost of goods sold			147.5				68.0				0.3				215.8
Gross profit (loss)			102.7				46.9				(0.3	)			149.3
SG&A expenses			47.5				32.7				0.4				80.6
Equity (earnings) loss from unconsolidated affiliates, net			(26.5	)			-				0.2				(26.3	)
Segment operating income (loss)		$	81.7			$	14.2			$	(0.9	)		$	95.0

Depreciation and amortization		$	19.7			$	5.8			$	-			$	25.5
Purchases of property, plant and equipment			16.0				3.9				-				19.9


For the six months ended June 30, 2025		Mineral Fiber				Architectural Specialties				Unallocated Corporate				Total
Net sales to external customers		$	512.1			$	295.2			$	-			$	807.3
Cost of goods sold			304.7				176.2				0.7				481.6
Gross profit (loss)			207.4				119.0				(0.7	)			325.7
SG&A expenses			83.4				78.6				0.5				162.5
Equity (earnings) loss from unconsolidated affiliates, net			(58.9	)			-				0.4				(58.5	)
Segment operating income (loss)		$	182.9			$	40.4			$	(1.6	)		$	221.7

Depreciation and amortization		$	42.9			$	16.9			$	-			$	59.8
Purchases of property, plant and equipment			31.4				7.6				-				39.0


For the six months ended June 30, 2024		Mineral Fiber				Architectural Specialties				Unallocated Corporate				Total
Net sales to external customers		$	489.8			$	201.6			$	-			$	691.4
Cost of goods sold			293.2				123.9				0.7				417.8
Gross profit (loss)			196.6				77.7				(0.7	)			273.6
SG&A expenses			89.6				55.8				0.6				146.0
Equity (earnings) loss from unconsolidated affiliates, net			(53.9	)			-				0.4				(53.5	)
Segment operating income (loss)		$	160.9			$	21.9			$	(1.7	)		$	181.1

Depreciation and amortization		$	39.6			$	10.2			$	-			$	49.8
Purchases of property, plant and equipment			27.6				7.0				-				34.6

Reconciliation of Total Segment Operating Income to Earnings Before Income Taxes

The following table reconciles our total segment operating income to earnings before income taxes. These items are measured and managed only on a consolidated basis.


		Three Months Ended								Six Months Ended
		June 30,								June 30,
		2025				2024				2025				2024
Total segment operating income		$	123.2			$	95.0			$	221.7			$	181.1
Interest expense			8.6				11.1				17.1				20.1
Other non-operating (income), net			(0.7	)			(3.2	)			(1.4	)			(6.3	)
Earnings before income taxes		$	115.3			$	87.1			$	206.0			$	167.3

Reconciliation of Total Segment Assets to Total Consolidated Assets

The following tables present balance sheet information by operating segment:


As of June 30, 2025		Mineral Fiber				Architectural Specialties				Unallocated Corporate				Total
Segment assets		$	1,089.0			$	592.8			$	180.2			$	1,862.0
Investment in unconsolidated affiliates			30.4				-				4.2				34.6

As of December 31,2024		Mineral Fiber				Architectural Specialties				Unallocated Corporate				Total
Segment assets		$	1,063.8			$	602.2			$	176.7			$	1,842.7
Investment in unconsolidated affiliates			22.6				-				4.6				27.2