Acquisitions - Schedule of Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination (Details) - Knoll $ in Millions	Jul. 19, 2021 USD ($)
Business Acquisition [Line Items]
Fair Value	$ 756.6
Trade name - indefinite lived
Business Acquisition [Line Items]
Fair Value	$ 418.0
Backlog
Business Acquisition [Line Items]
Useful Life (years)	1 year
Fair Value	$ 27.6
Trade name - indefinite lived
Business Acquisition [Line Items]
Fair Value	$ 14.0
Trade name - indefinite lived \| Minimum
Business Acquisition [Line Items]
Useful Life (years)	5 years
Trade name - indefinite lived \| Maximum
Business Acquisition [Line Items]
Useful Life (years)	10 years
Designs
Business Acquisition [Line Items]
Fair Value	$ 40.0
Designs \| Minimum
Business Acquisition [Line Items]
Useful Life (years)	9 years
Designs \| Maximum
Business Acquisition [Line Items]
Useful Life (years)	15 years
Customer Relationships
Business Acquisition [Line Items]
Fair Value	$ 257.0
Customer Relationships \| Minimum
Business Acquisition [Line Items]
Useful Life (years)	2 years
Customer Relationships \| Maximum
Business Acquisition [Line Items]
Useful Life (years)	15 years

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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-Topic 350
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)(3)
-Publisher FASB
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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