Revenue (Tables)

3 Months Ended

Mar. 31, 2025

Mineral Fiber [Member]

Disaggregation Of Revenue [Line Items]

Schedule of Net Sales by Major Customer Channel within Each Segment

The following tables provide net sales by major customer channel within our Mineral Fiber and Architectural Specialties segments for the three months ended March 31, 2025 and 2024:

	Three Months Ended
	March 31,
Mineral Fiber	2025		2024
Distributors	$	180.0	$	169.3
Home centers		27.0		31.0
Direct customers		14.1		13.1
Other		24.0		26.2
Total	$	245.1	$	239.6

Architectural Specialties [Member]

Disaggregation Of Revenue [Line Items]

Schedule of Net Sales by Major Customer Channel within Each Segment

	Three Months Ended
	March 31,
Architectural Specialties	2025		2024
Distributors	$	54.3	$	53.8
Direct customers		77.4		30.0
Other		5.9		2.9
Total	$	137.6	$	86.7