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Restructuring and Related Activities (Details) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) $ / shares
Restructuring Cost and Reserve [Line Items]
Pre-tax charges	$ 43,900
Reduction In Workspace
Restructuring Cost and Reserve [Line Items]
Pre-tax charges	43,900
Effect on net income (loss)	$ (33,600)
Effect on earnings per share diluted (in dollars per share) | $ / shares	$ (0.15)
Reduction In Workspace | Operating Segments | EIG
Restructuring Cost and Reserve [Line Items]
Pre-tax charges	$ 22,800
Reduction In Workspace | Operating Segments | EMG
Restructuring Cost and Reserve [Line Items]
Pre-tax charges	20,900
Reduction In Workspace | Cost of Sales
Restructuring Cost and Reserve [Line Items]
Pre-tax charges	43,700
Reduction In Workspace | Selling, General and Administrative Expenses
Restructuring Cost and Reserve [Line Items]
Pre-tax charges	$ 200

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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