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Significant Accounting Policies, Recent Accounting Pronouncements and Adopted Accounting Standards - Narrative (Details)			12 Months Ended
	May 31, 2024 USD ($)	Jan. 01, 2024 Segment	Dec. 31, 2024 USD ($) Segment	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Jun. 01, 2024
Accounting Policies [Line Items]
Number of operating segments | Segment		2	2
Interest costs capitalized			$ 0	$ 0	$ 0
Intangible assets, amortizable life						30 years
Goodwill impairment	$ 127,500,000		127,500,000	89,500,000
Deferred taxes for undistributed earnings of foreign subsidiaries			4,100,000
Undistributed earnings of foreign subsidiaries not permanently reinvested			330,700,000
Undistributed earnings of foreign subsidiaries			319,500,000
Advertising expenses			99,300,000	102,700,000	108,800,000
Research and development expenses			$ 23,000,000	25,800,000	$ 26,300,000
Minimum
Accounting Policies [Line Items]
Service And Maintenance Agreement Term			3 months
Maximum
Accounting Policies [Line Items]
Service And Maintenance Agreement Term			60 months
Amortizable Period, Option 1 | Minimum
Accounting Policies [Line Items]
Intangible assets, amortizable life			5 years
Amortizable Period, Option 2
Accounting Policies [Line Items]
Intangible assets, amortizable life			7 years
Amortizable Period, Option 3
Accounting Policies [Line Items]
Intangible assets, amortizable life			10 years
Amortizable Period, Option 4
Accounting Policies [Line Items]
Intangible assets, amortizable life			15 years
Amortizable Period, Option 5
Accounting Policies [Line Items]
Intangible assets, amortizable life			23 years
Amortizable Period, Option 6 | Maximum
Accounting Policies [Line Items]
Intangible assets, amortizable life			30 years
Buildings | Minimum
Accounting Policies [Line Items]
Property, plant and equipment, useful life			40 years
Buildings | Maximum
Accounting Policies [Line Items]
Property, plant and equipment, useful life			50 years
Machinery, equipment and furniture | Minimum
Accounting Policies [Line Items]
Property, plant and equipment, useful life			3 years
Machinery, equipment and furniture | Maximum
Accounting Policies [Line Items]
Property, plant and equipment, useful life			10 years
Computer software | Minimum
Accounting Policies [Line Items]
Property, plant and equipment, useful life			5 years
Computer software | Maximum
Accounting Policies [Line Items]
Property, plant and equipment, useful life			10 years
ACCO Brands International
Accounting Policies [Line Items]
Goodwill impairment			$ 0	$ 0

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