Commitments and Contingencies - Narrative (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) Facility
Commitment And Contingencies [Line Items]
Number of sites cited as potentially responsible party | Facility	4
Number of previously and currently owned sites with potential remediation obligations | Facility	6
Multiemployer pension plan, amount of remaining liability related to unsettled plan	$ 15.6
Payments to remaining plan scheduled date	Dec. 01, 2033
Cash payments related to settlement of two multiemployer pension plans	$ 18.4
Restructuring Expense
Commitment And Contingencies [Line Items]
Expenses related to arbitration proceedings	9.1
Donnelley Financial Solutions, Inc.
Commitment And Contingencies [Line Items]
Potential contingent lease obligations	1.2
Cash payments related to settlement of two multiemployer pension plans	7.1
LSC Communications, Inc.
Commitment And Contingencies [Line Items]
Potential contingent lease obligations	29.0
Cash payments related to settlement of two multiemployer pension plans	$ 31.1