Concentrations of Risk - Additional Information (Details) $ in Millions	12 Months Ended
Dec. 31, 2024 USD ($) Employee	Dec. 31, 2023 USD ($)
Concentration Risk [Line Items]
Accounts receivable, net, current	$ 1,144.0	$ 1,033.2
Number of employees of PCA \| Employee	15,400
Percentage of hourly employees represented by unions	60.00%
Office Depot \| Credit Concentration Risk
Concentration Risk [Line Items]
Accounts receivable, net, current	$ 37.5	$ 46.5
Workforce Subject to Collective Bargaining Arrangements \| Customer Concentration Risk \| Labor
Concentration Risk [Line Items]
Concentration risk, percentage	44.00%
Workforce Subject to Collective Bargaining Arrangements Expiring within One Year \| Customer Concentration Risk \| Labor
Concentration Risk [Line Items]
Concentration risk, percentage	23.00%
Total Company Sales Revenue \| Office Depot \| Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage	4.00%	5.00%
Total Company Sales Revenue \| Office Depot \| Customer Concentration Risk \| Paper
Concentration Risk [Line Items]
Concentration risk, percentage	58.00%
Paper Segment Sales Revenue \| Office Depot \| Customer Concentration Risk \| Paper
Concentration Risk [Line Items]
Concentration risk, percentage	58.00%	61.00%
Total Company Receivables \| Office Depot \| Customer Concentration Risk
Concentration Risk [Line Items]
Concentration risk, percentage	3.00%	4.00%

Number of persons employed by the Entity

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- Definition

Represents percentage of hourly employees represented by unions.

+ References

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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

+ References

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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

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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