Discontinued Operations - Schedule of Loss From Discontinued Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Severance costs	$ 9.9	$ 34.7
Other restructuring charges	$ (26.5)	22.0
Discontinued Operations, Held-for-sale | United States Book Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total net sales		79.4
Total cost of sales, excluding depreciation and amortization		80.4
Selling, general and administrative expenses		4.2
Depreciation and amortization		0.0
Restructuring, impairment and transaction-related charges		16.4
Goodwill impairment		0.0
Other expenses, net		0.3
Loss from discontinued operations before income taxes		(21.9)
Income tax benefit		0.0
Loss from discontinued operations, net of tax		(21.9)
Impairment of tangible assets		11.5
Severance costs		2.2
Other restructuring charges		$ 2.7