Revenue (Tables)

12 Months Ended

Dec. 31, 2022

Mineral Fiber [Member]

Disaggregation Of Revenue [Line Items]

Schedule of Net Sales by Major Customer Group within Each Segment

The following tables present net sales by major customer group within the Mineral Fiber and Architectural Specialties segments for the years ended December 31, 2022, 2021 and 2020:

Mineral Fiber	2022		2021		2020
Distributors	$	654.1	$	603.9	$	525.2
Home centers		99.1		94.4		96.1
Direct customers		61.0		59.2		54.3
Retailers and other		73.2		61.0		50.4
Total	$	887.4	$	818.5	$	726.0

Architectural Specialties [Member]

Disaggregation Of Revenue [Line Items]

Schedule of Net Sales by Major Customer Group within Each Segment

Architectural Specialties	2022		2021		2020
Distributors	$	174.4	$	150.5	$	135.5
Direct customers		168.0		134.6		73.3
Retailers and other		3.3		3.0		2.1
Total	$	345.7	$	288.1	$	210.9