Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Intangible Assets and Goodwill

Goodwill and other intangible assets included in the Condensed Consolidated Balance Sheets consisted of the following:

	September 30, 2023		December 31, 2022
Goodwill, net	$	495.6	$	305.9
Definite-lived intangible assets, net	164.3		118.4
Indefinite-lived intangible assets	33.5		15.5
Total goodwill and other intangible assets, net	$	693.3	$	439.8

Schedule of Goodwill

The changes in the carrying amount of goodwill, by reporting segment, are as follows:

	Workplace Furnishings		Residential Building Products		Total
Balance as of December 31, 2022
Goodwill	$	148.7	$	222.4	$	371.1
Accumulated impairment losses	(65.0)		(0.1)		(65.2)
Net goodwill balance as of December 31, 2022	83.6		222.3		305.9
Goodwill acquired	189.6		—		189.6
Balance as of September 30, 2023
Goodwill	338.3		222.4		560.7
Accumulated impairment losses	(65.0)		(0.1)		(65.2)
Net goodwill balance as of September 30, 2023	$	273.3	$	222.3	$	495.6

Schedule of Definite-Lived Intangible Assets

The table below summarizes amortizable definite-lived intangible assets, which are reflected in "Goodwill and Other Intangible Assets, net" in the Condensed Consolidated Balance Sheets:

	September 30, 2023						December 31, 2022
	Gross		Accumulated Amortization		Net		Gross		Accumulated Amortization		Net
Software	$	206.8	$	138.9	$	67.9	$	194.4	$	122.5	$	71.9
Trademarks and trade names	16.2		6.9		9.2		14.3		5.9		8.4
Customer lists and other	134.0		46.8		87.1		80.2		42.1		38.1
Net definite-lived intangible assets	$	356.9	$	192.7	$	164.3	$	288.8	$	170.4	$	118.4

Schedule of Finite-lived Intangible Assets Amortization Expense

Amortization expense is reflected in "Selling and administrative expenses" in the Condensed Consolidated Statements of Comprehensive Income and was as follows:

	Three Months Ended				Nine Months Ended
	September 30, 2023		October 1, 2022		September 30, 2023		October 1, 2022
Capitalized software	$	5.9	$	6.1	$	16.8	$	18.4
Other definite-lived intangibles	$	2.3	$	1.6	$	5.8	$	4.9

Schedule of Expected Amortization Expense Table

Based on the current amount of intangible assets subject to amortization, the estimated amortization expense for each of the following five years is as follows:

	2023		2024		2025		2026		2027
Amortization expense	$	30.5	$	31.0	$	28.0	$	23.3	$	17.5

Schedule of Indefinite Lived Intangible Assets and Goodwill

These indefinite-lived intangible assets are reflected in "Goodwill and Other Intangible Assets, net" in the Condensed Consolidated Balance Sheets:

	September 30, 2023		December 31, 2022
Trademarks and trade names	$	33.5	$	15.5