ACCO Brands (ACCO) 10-Q 9 Aug 22 2022 Q2 Quarterly report Financial data

Cover

Cover - shares	6 Months Ended
	Jun. 30, 2022	Aug. 01, 2022
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2022
Document Transition Report	false
Entity File Number	001-08454
Entity Registrant Name	ACCO Brands Corporation
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	36-2704017
Entity Address, Address Line One	Four Corporate Drive
Entity Address, City or Town	Lake Zurich
Entity Address, State or Province	IL
Entity Address, Postal Zip Code	60047
City Area Code	847
Local Phone Number	541-9500
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	ACCO
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		94,260,926
Entity Central Index Key	0000712034
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q2
Amendment Flag	false

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 91.7	$ 41.2
Accounts receivable, net	423.9	416.1
Inventories	471.5	428
Other current assets	56.2	39.6
Total current assets	1,043.3	924.9
Total property, plant and equipment	594.7	656.4
Less: accumulated depreciation	(398.7)	(441.8)
Property, plant and equipment, net	196	214.6
Right of use asset, leases	96.8	105.2
Deferred income taxes	105	115.9
Goodwill	779.2	802.5
Identifiable intangibles, net	864.6	902.2
Other non-current assets	6	26
Total assets	3,090.9	3,091.3
Current liabilities:
Notes payable	20.2	9.4
Current portion of long-term debt	33.9	33.6
Accounts payable	254.4	308.2
Accrued compensation	36.1	56.9
Accrued customer program liabilities	98	101.4
Lease liabilities	22.4	24.4
Current portion of contingent consideration	2.7	24.8
Other current liabilities	122.8	149.9
Total current liabilities	590.5	708.6
Long-term debt, net	1,124.5	954.1
Long-term lease liabilities	81.9	89
Deferred income taxes	147.7	145.2
Pension and post-retirement benefit obligations	194.2	222.3
Contingent consideration	0.3	12
Other non-current liabilities	78.9	95.3
Total liabilities	2,218	2,226.5
Stockholders' equity:
Common stock	1	1
Treasury stock	(43.4)	(40.9)
Paid-in capital	1,894.7	1,902.2
Accumulated other comprehensive loss	(539.3)	(535.5)
Accumulated deficit	(440.1)	(462)
Total stockholders' equity	872.9	864.8
Total liabilities and stockholders' equity	$ 3,090.9	$ 3,091.3

Consolidated Statements of Inco

Consolidated Statements of Income (Unaudited) - USD ($) shares in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Net sales		$ 521,000,000	$ 517,800,000	$ 962,600,000	$ 928,300,000
Cost of products sold		371,000,000	353,700,000	693,000,000	648,700,000
Gross profit		150,000,000	164,100,000	269,600,000	279,600,000
Operating costs and expenses:
Selling, general and administrative expenses		91,600,000	97,700,000	190,400,000	191,700,000
Amortization of intangibles		10,500,000	11,600,000	21,600,000	23,600,000
Restructuring charges		1,900,000	0	2,200,000	3,900,000
Change in fair value of contingent consideration		(9,400,000)	4,900,000	(6,800,000)	11,600,000
Total operating costs and expenses		94,600,000	114,200,000	207,400,000	230,800,000
Operating income	[1]	55,400,000	49,900,000	62,200,000	48,800,000
Non-operating expense (income):
Interest expense		10,800,000	11,600,000	20,500,000	24,800,000
Interest income		(2,200,000)	(500,000)	(3,600,000)	(600,000)
Non-operating pension income		(1,300,000)	(2,500,000)	(2,700,000)	(3,300,000)
Other (income) expense, net		(3,700,000)	(9,000,000)	(2,800,000)	3,900,000
Income before income tax		51,800,000	50,300,000	50,800,000	24,000,000
Income tax expense (benefit)		12,400,000	1,700,000	14,100,000	(4,200,000)
Net income		$ 39,400,000	$ 48,600,000	$ 36,700,000	$ 28,200,000
Per share:
Basic income per share (in dollars per share)		$ 0.41	$ (0.51)	$ 0.38	$ 0.30
Diluted income per share (in dollars per share)		$ 0.40	$ (0.50)	$ 0.37	$ 0.29
Weighted average number of shares outstanding:
Basic (in shares)		96.2	95.5	96.2	95.3
Diluted (in shares)		97.4	97.2	98	96.9
[1] Operating income (loss) is defined as i) net sales; ii) less cost of products sold; iii) less selling, general and administrative expenses; iv) less amortization of intangibles; v) less restructuring charges; and vi) less change in the fair value of contingent consideration.

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 39.4	$ 48.6	$ 36.7	$ 28.2
Other comprehensive income (loss), net of tax:
Unrealized income on derivative instruments, net of tax expense of $(1.6) and $(0.1) and $(0.9) and $(1.9), respectively	3.9	0.2	2.5	4.3
Foreign currency translation adjustments, net of tax benefit (expense) of $1.5 and $0.2 and $2.1 and $(1.3), respectively	(37.2)	24.4	(21.9)	3.7
Recognition of deferred pension and other post-retirement items, net of tax expense of $(3.5) and $(0.1) and $(4.9) and $(1.3), respectively	10.8	0.5	15.6	4.1
Other comprehensive (loss) income, net of tax	(22.5)	25.1	(3.8)	12.1
Comprehensive income	$ 16.9	$ 73.7	$ 32.9	$ 40.3

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Unaudited) (Parenthetical) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Unrealized income on derivative instruments, tax expense	$ (1.6)	$ (0.1)	$ (0.9)	$ (1.9)
Foreign currency translation adjustments, tax benefit (expense)	1.5	0.2	2.1	(1.3)
Recognition of deferred pension and other post-retirement items, tax expense	$ (3.5)	$ (0.1)	$ (4.9)	$ (1.3)

Condensed Consolidated Statemen

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Operating activities
Net income	$ 36.7	$ 28.2
Amortization of inventory step-up	0	2.4
Payments of contingent consideration	(9.2)	0
Loss on disposal of assets	(0.2)	0
Change in fair value of contingent consideration	(6.8)	11.6
Depreciation	19.6	19.6
Amortization of debt issuance costs	1.4	1.5
Amortization of intangibles	21.6	23.6
Stock-based compensation	7.2	9
Loss on debt extinguishment	0	3.7
Changes in balance sheet items:
Accounts receivable	(12.4)	(54.5)
Inventories	(51.4)	(77.9)
Other assets	(18.7)	(32.2)
Accounts payable	(47.2)	42.3
Accrued expenses and other liabilities	(34.8)	(12.3)
Accrued income taxes	(3.7)	(20.1)
Net cash used by operating activities	(97.9)	(55.1)
Investing activities
Additions to property, plant and equipment	(7)	(9.3)
Proceeds from the disposition of assets	0.2	0
Cost of acquisitions, net of cash acquired	0	15.4
Net cash (used) provided by investing activities	(6.8)	6.1
Financing activities
Proceeds from long-term borrowings	218	648.8
Repayments of long-term debt	(25.6)	(529.2)
Proceeds of notes payable, net	11.3	2.2
Payment for debt premium	0	(9.8)
Payments for debt issuance costs	0	(10.5)
Dividends paid	(14.4)	(12.4)
Payments of contingent consideration	(17.8)	0
Repurchases of common stock	(19.4)	0
Payments related to tax withholding for stock-based compensation	(2.5)	(0.9)
Proceeds from the exercise of stock options	4.3	2
Net cash provided by financing activities	153.9	90.2
Effect of foreign exchange rate changes on cash and cash equivalents	1.3	0.1
Net increase in cash and cash equivalents	50.5	41.3
Cash and cash equivalents
Beginning of the period	41.2	36.6
End of the period	91.7	77.9
Cash paid during the year for:
Interest	18.9	16.8
Income taxes	$ 17.9	$ 15.3

Consolidated Statements of Stoc

Consolidated Statements of Stockholders’ Equity (Unaudited) - USD ($) $ in Millions	Total	Common Stock	Paid-in Capital	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Accumulated Deficit
Balance at start of period at Dec. 31, 2020	$ 742.7	$ 1	$ 1,883.1	$ (564.2)	$ (39.9)	$ (537.3)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(20.4)					(20.4)
Gain (loss) on derivative financial instruments, net of tax	4.1			4.1
Translation impact, net of tax	(20.7)			(20.7)
Pension and post-retirement adjustment, net of tax	3.6			3.6
Stock-based compensation	4.8		5			(0.2)
Common stock issued, net of shares withheld for employee taxes	1		1.9		(0.9)
Dividends declared	(6.2)					(6.2)
Other	(0.1)		(0.1)
Balance at end of period at Mar. 31, 2021	$ 708.8	$ 1	1,889.9	(577.2)	$ (40.8)	(564.1)
Balance at start of period (in shares) at Dec. 31, 2020	94,942,565	99,129,455			4,186,890
Increase (Decrease) In Capital Stock [Roll Forward]
Common stock issued, net of shares withheld for employee taxes (in shares)	543,156	652,755			109,599
Balance at end of period (in shares) at Mar. 31, 2021	95,485,721	99,782,210			4,296,489
Balance at start of period at Dec. 31, 2020	$ 742.7	$ 1	1,883.1	(564.2)	$ (39.9)	(537.3)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	28.2
Gain (loss) on derivative financial instruments, net of tax	4.3
Pension and post-retirement adjustment, net of tax	4.1
Balance at end of period at Jun. 30, 2021	$ 780.7	$ 1	1,894.6	(552.1)	$ (40.8)	(522)
Balance at start of period (in shares) at Dec. 31, 2020	94,942,565	99,129,455			4,186,890
Increase (Decrease) In Capital Stock [Roll Forward]
Common stock repurchases ( in shares)	0
Balance at end of period (in shares) at Jun. 30, 2021	95,582,881	99,879,370			4,296,489
Balance at start of period at Mar. 31, 2021	$ 708.8	$ 1	1,889.9	(577.2)	$ (40.8)	(564.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	48.6					48.6
Gain (loss) on derivative financial instruments, net of tax	0.2			0.2
Translation impact, net of tax	24.4			24.4
Pension and post-retirement adjustment, net of tax	0.5			0.5
Stock-based compensation	4.2		4.4			(0.2)
Common stock issued, net of shares withheld for employee taxes	0.1		0.1
Dividends declared	(6.2)					(6.2)
Other	0.1		0.2			(0.1)
Balance at end of period at Jun. 30, 2021	$ 780.7	$ 1	1,894.6	(552.1)	$ (40.8)	(522)
Balance at start of period (in shares) at Mar. 31, 2021	95,485,721	99,782,210			4,296,489
Increase (Decrease) In Capital Stock [Roll Forward]
Common stock issued, net of shares withheld for employee taxes (in shares)	97,160	97,160
Common stock repurchases ( in shares)	0
Balance at end of period (in shares) at Jun. 30, 2021	95,582,881	99,879,370			4,296,489
Balance at start of period at Dec. 31, 2021	$ 864.8	$ 1	1,902.2	(535.5)	$ (40.9)	(462)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(2.7)					(2.7)
Gain (loss) on derivative financial instruments, net of tax	(1.4)			(1.4)
Translation impact, net of tax	15.3			15.3
Pension and post-retirement adjustment, net of tax	4.8			4.8
Stock-based compensation	4.8		4.9			(0.1)
Common stock issued, net of shares withheld for employee taxes	3.1		4.3		(1.2)
Dividends declared	(7.3)					(7.3)
Other	0.1		0.1
Balance at end of period at Mar. 31, 2022	$ 881.5	$ 1	1,911.5	(516.8)	$ (42.1)	(472.1)
Balance at start of period (in shares) at Dec. 31, 2021	95,817,946	100,118,494			4,300,548
Increase (Decrease) In Capital Stock [Roll Forward]
Common stock issued, net of shares withheld for employee taxes (in shares)	1,021,432	1,128,030			106,598
Balance at end of period (in shares) at Mar. 31, 2022	96,839,378	101,246,524			4,407,146
Balance at start of period at Dec. 31, 2021	$ 864.8	$ 1	1,902.2	(535.5)	$ (40.9)	(462)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	36.7
Gain (loss) on derivative financial instruments, net of tax	2.5
Pension and post-retirement adjustment, net of tax	15.6
Balance at end of period at Jun. 30, 2022	$ 872.9	$ 1	1,894.7	(539.3)	$ (43.4)	(440.1)
Balance at start of period (in shares) at Dec. 31, 2021	95,817,946	100,118,494			4,300,548
Increase (Decrease) In Capital Stock [Roll Forward]
Common stock repurchases ( in shares)	(2,700,000)
Balance at end of period (in shares) at Jun. 30, 2022	94,243,688	98,834,343			4,590,655
Balance at start of period at Mar. 31, 2022	$ 881.5	$ 1	1,911.5	(516.8)	$ (42.1)	(472.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	39.4					39.4
Gain (loss) on derivative financial instruments, net of tax	3.9			3.9
Translation impact, net of tax	(37.2)			(37.2)
Pension and post-retirement adjustment, net of tax	10.8			10.8
Common stock repurchases	(19.4)		(19.4)
Stock-based compensation	2.4		2.6			(0.2)
Common stock issued, net of shares withheld for employee taxes	(1.3)				(1.3)
Dividends declared	(7.1)					(7.1)
Other	(0.1)					(0.1)
Balance at end of period at Jun. 30, 2022	$ 872.9	$ 1	$ 1,894.7	$ (539.3)	$ (43.4)	$ (440.1)
Balance at start of period (in shares) at Mar. 31, 2022	96,839,378	101,246,524			4,407,146
Increase (Decrease) In Capital Stock [Roll Forward]
Common stock issued, net of shares withheld for employee taxes (in shares)	146,899	330,408			183,509
Common stock repurchases ( in shares)	(2,742,589)	(2,742,589)
Balance at end of period (in shares) at Jun. 30, 2022	94,243,688	98,834,343			4,590,655

Consolidated Statements of St_2

Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	3 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021
Statement of Stockholders' Equity [Abstract]
Common stock, dividends per share, declared	$ 0.075	$ 0.075	$ 0.065	$ 0.065

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	1. Basis of Presentation As used in this Quarterly Report on Form 10-Q for the quarter ended June 30, 2022, the terms "ACCO Brands," "ACCO," the "Company," "we," "us," and "our" refer to ACCO Brands Corporation and its consolidated subsidiaries. The management of ACCO Brands Corporation is responsible for the accuracy and internal consistency of the preparation of the condensed consolidated financial statements and notes contained in this Quarterly Report on Form 10-Q. The condensed consolidated interim financial statements have been prepared pursuant to the rules and regulations of the SEC. Although the Company believes the disclosures are adequate to make the information presented not misleading, certain information and note disclosures normally included in annual financial statements prepared in accordance with generally accepted accounting principles in the U.S. ("GAAP") have been condensed or omitted pursuant to those rules and regulations. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2021. The Condensed Consolidated Balance Sheet as of June 30, 2022 and the related Consolidated Statements of Income, Consolidated Statements of Comprehensive Income (Loss), and Consolidated Statements of Stockholders' Equity for the three and six months ended June 30, 2022 and 2021, and the Condensed Consolidated Statements of Cash Flows for the six months ended June 30, 2022 and 2021 are unaudited. The December 31, 2021 Condensed Consolidated Balance Sheet data was derived from audited financial statements but does not include all annual disclosures required by GAAP. The financial statements included herein were prepared by management and reflect all adjustments (consisting solely of normal recurring items unless otherwise noted) which are, in the opinion of management, necessary for the fair presentation of results of operations and cash flows for the interim periods ended June 30, 2022 and 2021, and the financial position of the Company as of June 30, 2022. Interim results may not be indicative of results for a full year. The preparation of financial statements in conformity with GAAP requires management to make certain estimates and assumptions that affect the reported assets and liabilities at the date of the financial statements and the reported revenues and expenses during the reporting periods. Actual results could differ from those estimates.

Recent Accounting Pronouncement

Recent Accounting Pronouncements and Adopted Accounting Standards	6 Months Ended
	Jun. 30, 2022
Accounting Standards Update and Change in Accounting Principle [Abstract]
Recent Accounting Pronouncements and Adopted Accounting Standards	2. Recent Accounting Pronouncements and Adopted Accounting Standards Recent Accounting Pronouncements In March 2020, the Financial Accounting Standards Board ("FASB") issued ASU 2020-04, Reference Rate Reform (Topic 848), which provides optional expedients and exceptions for applying current GAAP to contracts, hedging relationships, and other transactions affected by the transition from the use of LIBOR to an alternative reference rate. We are currently evaluating our contracts and hedging relationships that reference LIBOR and the potential effects of adopting this new guidance. However, we do not expect the changes related to the LIBOR successor rate procedures to have a material effect on the Company. The guidance can be adopted immediately and is applicable to contracts entered into on or before December 31, 2022. There are no recently issued accounting standards that are expected to have an impact on the Company’s financial condition, results of operations or cash flow. Recently Adopted Accounting Standards In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes , which removes certain exceptions for investments, intraperiod allocations and interim calculations, and adds guidance to reduce complexity in accounting for income taxes. Effective January 1, 2021, the Company adopted this standard. The adoption of this standard did not have a material impact on our condensed consolidated financial statements. There were no accounting standards that were adopted in the first six months of 2022 that had a material effect on the Company’s financial condition, results of operations or cash flow.

Acquisitions

Acquisitions	6 Months Ended
	Jun. 30, 2022
Business Combinations [Abstract]
Acquisitions	3. Acquisitions Acquisition of Franken On April 1, 2021, we completed the acquisition of Franken, for a purchase price of € 2.4 million (US$ 2.8 million, based on April 1, 2021 exchange rates), net of cash acquired of $ 1.1 million. Franken is a provider of visual communication products, including boards, markers, planning tools, as well as creative and training products. Franken is a German company that is included in the Company’s EMEA reporting segment. Pro forma financial information is not presented due to immateriality.

Long-Term Debt and Short-Term B

Long-Term Debt and Short-Term Borrowings	6 Months Ended
	Jun. 30, 2022
Debt Disclosure [Abstract]
Long-Term Debt and Short-Term Borrowings	4.50 to 1.00 2.50 % 1.50 % 0.500 % ≤ 4.50 to 1.00 and > 4.00 to 1.00 2.25 % 1.25 % 0.375 % ≤ 4.00 to 1.00 and > 3.50 to 1.00 2.00 % 1.00 % 0.350 % ≤ 3.50 to 1.00 and > 3.00 to 1.00 1.75 % 0.75 % 0.300 % ≤ 3.00 to 1.00 and > 2.00 to 1.00 1.50 % 0.50 % 0.250 % ≤ 2.00 to 1.00 1.25 % 0.25 % 0.200 % As of June 30, 2022, there was $ 240.3 million in borrowings outstanding under the Revolving Facility. The remaining amount available for borrowings was $ 348.7 million (allowing for $ 11.0 million of letters of credit outstanding on that date). Senior Unsecured Notes On March 15, 2021, the Company completed a private offering of $ 575.0 million in aggregate principal amount of 4.25 percent Senior Unsecured Notes (the "Notes") due March 2029. Interest on the Notes is payable semiannually on March 15 and September 15 of each year. The Notes are fully and unconditionally guaranteed, jointly and severally, on a senior unsecured basis by each of the Company's existing and future U.S. subsidiaries, other than certain excluded subsidiaries. As of June 30, 2022, our Consolidated Leverage Ratio was approximately 3.97 to 1.00 versus our maximum covenant of 4.25 to 1.00. Guarantees and Security Generally, obligations under the Credit Agreement are guaranteed by certain of the Company’s existing and future subsidiaries, and are secured by substantially all of the Company’s and certain guarantor subsidiaries’ assets, subject to certain exclusions and limitations." id="sjs-B4">4. Long-term Debt and Short-term Borrowings Notes payable and long-term debt, listed in order of the priority of security interests in assets of the Company, consisted of the following as of June 30, 2022 and December 31, 2021: (in millions) June 30, December 31, Euro Senior Secured Term Loan A, due March 2026 (floating interest rate of 2.00 % at June 30, 2022 and 2.00 % at December 31, 2021) $ 228.8 $ 254.8 USD Senior Secured Term Loan A, due March 2026 (floating interest rate of 4.25 % at June 30, 2022 and 2.22 % at December 31, 2021) 86.7 89.0 Australian Dollar Senior Secured Term Loan A, due March 2026 (floating interest rate of 3.86 % at June 30, 2022 and 2.11 % at December 31, 2021) 36.4 39.4 U.S. Dollar Senior Secured Revolving Credit Facility, due March 2026 (floating interest rate of 3.45 % at June 30, 2022 and 2.10 % at December 31, 2021) 214.8 13.7 Australian Dollar Senior Secured Revolving Credit Facility, due March 2026 (floating interest rate of 3.18 % at June 30, 2022 and 2.06 % at December 31, 2021) 25.5 25.4 Senior Unsecured Notes, due March 2029 (fixed interest rate of 4.25 %) 575.0 575.0 Other borrowings 20.2 9.4 Total debt 1,187.4 1,006.7 Less: Current portion 54.1 43.0 Debt issuance costs, unamortized 8.8 9.6 Long-term debt, net $ 1,124.5 $ 954.1 Credit Agreement The Company is party to a Third Amended and Restated Credit Agreement (the "Credit Agreement"), dated as of January 27, 2017, among the Company, certain subsidiaries of the Company, Bank of America, N.A., as administrative agent, and the other agents and various lenders party thereto. The Credit Agreement, as amended, provides for a five-year senior secured credit facility, which consists of a € 300.0 million (US$ 320.8 million based on January 27, 2017, exchange rates) term loan facility, an A$ 80.0 million (US$ 60.4 million based on January 27, 2017, exchange rates) term loan facility, a US$ 100.0 million term loan facility, and a US$6 00.0 million multi-currency revolving credit facility (the "Revolving Facility"). From July 2018 to March 2021, the Company entered into five amendments (the "Amendments") to the Credit Agreement. The following are the key changes, among other things, to the Credit Agreement as a result of the Amendments: • added provisions relating to LIBOR successor rate procedures if LIBOR becomes unascertainable or is discontinued in the future and to expressly permit certain intercompany asset transfers. The changes related to the LIBOR successor rate procedures are not expected to have a material effect on the Company; • replaced the minimum fixed coverage ratio of 1.25 :1.00 with a minimum Interest Coverage Ratio (as defined in the Credit Agreement) of 3.00 :1.00; • required that the Company pay down any amounts on the Revolving Facility when cash and cash equivalents of the loan parties exceed $ 100.0 million; and • amended the maximum Consolidated Leverage Ratio financial covenant for the fiscal quarters beginning March 31, 2021, as follows: Quarter Ended Maximum Consolidated Leverage Ratio March 2021 5.25 :1.00 June 2021 5.25 :1.00 September 2021 4.75 :1.00 December 2021 4.25 :1.00 March 2022 4.25 :1.00 June 2022 4.25 :1.00 September 2022 and thereafter 4.00 :1.00 The current maturity of the Credit Agreement is March 31, 2026 and the current pricing is as follows: Consolidated Leverage Ratio Applicable Rate on Euro/AUD/CDN Dollar Loans Applicable Rate on Base Rate Loans Undrawn Fee > 4.50 to 1.00 2.50 % 1.50 % 0.500 % ≤ 4.50 to 1.00 and > 4.00 to 1.00 2.25 % 1.25 % 0.375 % ≤ 4.00 to 1.00 and > 3.50 to 1.00 2.00 % 1.00 % 0.350 % ≤ 3.50 to 1.00 and > 3.00 to 1.00 1.75 % 0.75 % 0.300 % ≤ 3.00 to 1.00 and > 2.00 to 1.00 1.50 % 0.50 % 0.250 % ≤ 2.00 to 1.00 1.25 % 0.25 % 0.200 % As of June 30, 2022, there was $ 240.3 million in borrowings outstanding under the Revolving Facility. The remaining amount available for borrowings was $ 348.7 million (allowing for $ 11.0 million of letters of credit outstanding on that date). Senior Unsecured Notes On March 15, 2021, the Company completed a private offering of $ 575.0 million in aggregate principal amount of 4.25 percent Senior Unsecured Notes (the "Notes") due March 2029. Interest on the Notes is payable semiannually on March 15 and September 15 of each year. The Notes are fully and unconditionally guaranteed, jointly and severally, on a senior unsecured basis by each of the Company's existing and future U.S. subsidiaries, other than certain excluded subsidiaries. As of June 30, 2022, our Consolidated Leverage Ratio was approximately 3.97 to 1.00 versus our maximum covenant of 4.25 to 1.00. Guarantees and Security Generally, obligations under the Credit Agreement are guaranteed by certain of the Company’s existing and future subsidiaries, and are secured by substantially all of the Company’s and certain guarantor subsidiaries’ assets, subject to certain exclusions and limitations.

Leases

Leases	6 Months Ended
	Jun. 30, 2022
Leases [Abstract]
Leases	5. Leases The Company leases its corporate headquarters, various other facilities for distribution, manufacturing, and offices, as well as vehicles, forklifts and other equipment. The Company determines if an arrangement is a lease at inception. Leases are included in "Right of use asset, leases" ("ROU Assets"), and the current portion of the lease liability is included in "Lease liabilities" and the non-current portion is included in "Long-term lease liabilities" in the Condensed Consolidated Balance Sheets. The Company currently has an immaterial amount of financing leases and leases with terms of more than one month and less than 12 months. ROU Assets and Lease liabilities are recognized based on the present value of lease payments over the lease term. Because most of the Company’s leases do not provide an implicit rate of return, the Company uses its incremental collateralized borrowing rate, on a regional basis, in determining the present value of lease payments. The incremental borrowing rate is dependent upon the duration of the lease and has been segmented into three groups of time. All leases within the same region and the same group of time share the same incremental borrowing rate. The Company has lease agreements with lease and non-lease components, which are combined for accounting purposes for all classes of assets except information technology equipment. The components of lease expense were as follows: Three months ended Six Months Ended (in millions) 2022 2021 2022 2021 Operating lease cost $ 7.8 $ 7.0 $ 15.5 $ 14.2 Sublease income ( 0.6 ) ( 0.3 ) ( 1.2 ) ( 0.6 ) Total lease cost $ 7.2 $ 6.7 $ 14.3 $ 13.6 Other information related to leases was as follows: Six Months Ended (in millions, except lease term and discount rate) 2022 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 16.5 $ 15.1 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 6.9 $ 3.7 As of June 30, 2022 Weighted average remaining lease term: Operating leases 6.5 years Weighted average discount rate: Operating leases 4.6 % Future minimum lease payments, net of sub-lease income, for all non-cancelable leases as of June 30, 2022, were as follows: (in millions) Operating 2022 $ 13.9 2023 22.7 2024 18.9 2025 15.8 2026 12.8 2027 8.6 Thereafter 29.1 Total minimum lease payments 121.8 Less imputed interest 17.5 Future minimum payments for leases, net of sublease rental income and imputed interest $ 104.3

Pension and Other Retiree Benef

Pension and Other Retiree Benefits	6 Months Ended
	Jun. 30, 2022
Retirement Benefits [Abstract]
Pension and Other Retiree Benefits	6. Pension and Other Retiree Benefits The components of net periodic benefit (income) cost for pension and post-retirement plans for the three and six months ended June 30, 2022 and 2021 were as follows: Three Months Ended June 30, Pension Post-retirement U.S. International (in millions) 2022 2021 2022 2021 2022 2021 Service cost $ — $ 0.1 $ 0.2 $ 0.4 $ — $ — Interest cost 1.2 1.2 2.4 1.6 — — Expected return on plan assets ( 2.7 ) ( 2.8 ) ( 4.5 ) ( 5.0 ) — — Amortization of prior service cost — — 0.1 — — — Amortization of net loss (gain) 0.9 0.8 1.3 1.8 ( 0.1 ) ( 0.1 ) Net periodic benefit income (2) $ ( 0.6 ) $ ( 0.7 ) $ ( 0.5 ) $ ( 1.2 ) $ ( 0.1 ) $ ( 0.1 ) Six Months Ended June 30, Pension Post-retirement U.S. International (in millions) 2022 2021 2022 2021 2022 2021 Service cost $ — $ 0.5 $ 0.5 $ 0.8 $ — $ — Interest cost 2.4 2.2 4.9 3.2 — — Expected return on plan assets ( 5.4 ) ( 5.6 ) ( 9.1 ) ( 9.8 ) — — Amortization of prior service cost — 0.1 0.1 0.1 — — Amortization of net loss (gain) 1.8 1.8 2.7 3.6 ( 0.2 ) ( 0.2 ) Curtailment loss (1) — 1.4 — — — — Net periodic benefit (income) cost (2) $ ( 1.2 ) $ 0.4 $ ( 0.9 ) $ ( 2.1 ) $ ( 0.2 ) $ ( 0.2 ) (1) Curtailment loss of $ 1.4 million due to the pension benefit freeze for the Sidney group under the ACCO Brands Corporation Pension Plan. (2) The components of net periodic benefit (income) cost, other than service cost, are included in the line "Non-operating pension income" in the Consolidated Statements of Income. We expect to contribute approximately $ 17.6 million to our defined benefit plans in 2022. For the six months ended June 30, 2022, we have contributed $ 6.6 million to these plans.

Stock-Based Compensation

Stock-Based Compensation	6 Months Ended
	Jun. 30, 2022
Share-based Payment Arrangement [Abstract]
Stock-Based Compensation	7. Stock-Based Compensation The following table summarizes our stock-based compensation expense (including stock options, restricted stock units ("RSUs") and performance stock units ("PSUs")) for the three and six months ended June 30, 2022 and 2021: Three months ended Six Months Ended (in millions) 2022 2021 2022 2021 Stock option compensation expense $ 0.6 $ 0.6 $ 2.7 $ 2.3 RSU compensation expense 0.9 0.9 3.0 3.4 PSU compensation expense 0.8 2.7 1.5 3.3 Total stock-based compensation expense $ 2.3 $ 4.2 $ 7.2 $ 9.0 We generally recognize compensation expense for stock-based awards ratably over the vesting period. During the second quarter of 2022, stock compensation grants were made consisting of 127,174 stock options, 38,153 RSUs and 703,379 PSUs. Also the Company's Board of Directors approved the annual stock compensation grant to eligible non-employee directors, which consisted of 132,632 RSUs. The following table summarizes our unrecognized compensation expense and the weighted-average period over which the expense will be recognized as of June 30, 2022: June 30, 2022 (in millions, except weighted average years) Unrecognized Compensation Expense Weighted Average Years Expense To Be Recognized Over Stock options $ 4.9 2.3 RSUs $ 5.7 2.2 PSUs $ 11.0 2.1

Inventories

Inventories	6 Months Ended
	Jun. 30, 2022
Inventory Disclosure [Abstract]
Inventories	8. Inventories The components of inventories were as follows: (in millions) June 30, December 31, Raw materials $ 71.8 $ 67.5 Work in process 4.3 4.1 Finished goods 395.4 356.4 Total inventories $ 471.5 $ 428.0

Goodwill and Identifiable Intan

Goodwill and Identifiable Intangible Assets	6 Months Ended
	Jun. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Identifiable Intangible Assets	9. Goodwill and Identifiable Intangible Assets Goodwill We test goodwill for impairment at least annually and on an interim basis if an event or circumstance indicates that it is more likely than not that an impairment loss has been incurred. During the second quarter of 2022, we completed the annual goodwill impairment assessment, on a quantitative basis, for goodwill for each of our three reporting units . The result of our annual assessment was that the fair value of the North America, International and EMEA reporting units exceeded their carrying values as of our measurement date of May 31, 2022 and we concluded that no impairment existed. Estimating the fair value of each reporting unit requires us to make assumptions and estimates regarding our future. We utilized a combination of both a discounted cash flows and market approach. The financial projections used in the valuation models reflected management's assumptions regarding revenue growth rates, economic and market trends, cost structure, and other expectations about the anticipated short-term and long-term operating results for each of our three reporting units. In management’s opinion, the goodwill balance for our ACCO Brands North America and ACCO Brands International reporting units could be at risk for impairment if operating performance does not improve as expected. This includes negative changes to our long-term outlook for our business and other assumptions which impact fair value including low or declining revenue growth rates, depressed operating margins, or adverse changes to discount rates. The excess fair value over carrying value for both our North America and International reporting units were less than ten percent as of our measurement date of May 31, 2022. Changes in the net carrying amount of goodwill by segment were as follows: (in millions) ACCO Brands North America ACCO Brands EMEA ACCO Brands International Total Balance at December 31, 2021 $ 446.7 $ 178.6 $ 177.2 $ 802.5 Foreign currency translation — ( 24.0 ) 0.7 ( 23.3 ) Balance at June 30, 2022 $ 446.7 $ 154.6 $ 177.9 $ 779.2 The goodwill balance includes $ 215.1 million of accumulated impairment losses, which occurred prior to December 31, 2016. Identifiable Intangible Assets The gross carrying value and accumulated amortization by class of identifiable intangible assets as of June 30, 2022 and December 31, 2021, were as follows: June 30, 2022 December 31, 2021 (in millions) Gross Carrying Amounts Accumulated Amortization Net Book Value Gross Carrying Amounts Accumulated Amortization Net Book Value Indefinite-lived intangible assets: Trade names (1) $ 408.2 $ ( 44.5 ) $ 363.7 $ 417.6 $ ( 44.5 ) $ 373.1 Amortizable intangible assets: Trade names 370.5 ( 116.3 ) 254.2 373.2 ( 110.5 ) 262.7 Customer and contractual relationships 355.5 ( 187.5 ) 168.0 366.5 ( 182.4 ) 184.1 Vendor relationships 82.4 ( 8.5 ) 73.9 82.4 ( 5.7 ) 76.7 Patents 8.0 ( 3.2 ) 4.8 8.6 ( 3.0 ) 5.6 Subtotal 816.4 ( 315.5 ) 500.9 830.7 ( 301.6 ) 529.1 Total identifiable intangibles $ 1,224.6 $ ( 360.0 ) $ 864.6 $ 1,248.3 $ ( 346.1 ) $ 902.2 (1) Accumulated amortization prior to the adoption of authoritative guidance on goodwill and other intangible assets, at which time further amortization ceased. The Company's intangible amortization expense for the three and six months ended June 30, 2022 was $ 10.5 million and $ 21.6 million , respectively, and $ 11.6 million and $ 23.6 million for the three and six months ended June 30, 2021, respectively. Estimated amortization expense for amortizable intangible assets, as of June 30, 2022, for the current year and the next five years is as follows: (in millions) 2022 2023 2024 2025 2026 2027 Estimated amortization expense (2) $ 42.4 $ 40.1 $ 38.5 $ 36.9 $ 34.7 $ 32.2 (2) Actual amounts of amortization expense may differ from estimated amounts due to changes in foreign currency exchange rates, additional intangible asset acquisitions, impairment of intangible assets, accelerated amortization of intangible assets and other events. We test indefinite-lived intangibles for impairment at least annually and on an interim basis if an event or circumstance indicates that it is more likely than not that an impairment loss has been incurred. We performed this annual assessment, on a qualitative basis, for our indefinite-lived trade names and concluded that no impairment existed as of our measurement date of May 31, 2022.

Restructuring

Restructuring	6 Months Ended
	Jun. 30, 2022
Restructuring and Related Activities [Abstract]
Restructuring	10. Restructuring The Company recorded $ 2.2 million and $ 3.9 million of restructuring expense for the six months ended June 30, 2022 and 2021, respectively. Restructuring expense for the three months ended June 30, 2022 was $ 1.9 million and net restructuring provision was zero for the three months ended June 30, 2021. Restructuring expenses were primarily for severance costs related to cost reduction initiatives in our North America and EMEA segments. The summary of the activity in the restructuring liability for the six months ended June 30, 2022, was as follows: Balance at Non-cash Items / Balance at (in millions) December 31, 2021 Provision Cash Currency June 30, 2022 Employee termination costs (1) $ 3.4 $ 1.8 $ ( 2.0 ) $ ( 0.1 ) $ 3.1 Termination of lease agreements (2) 1.1 — ( 0.8 ) — 0.3 Other — 0.4 ( 0.4 ) — — Total restructuring liability $ 4.5 $ 2.2 $ ( 3.2 ) $ ( 0.1 ) $ 3.4 (1) We expect the remaining $ 3.1 million employee termination costs to be substantially paid in the next twelve months . (2) We expect the remaining $ 0.3 million lease termination costs to be substantially paid in the next six months . The summary of the activity in the restructuring liability for the six months ended June 30, 2021, was as follows: Balance at Non-cash Items / Balance at (in millions) December 31, 2020 Provision Cash Currency June 30, 2021 Employee termination costs $ 8.1 $ 3.4 $ ( 5.1 ) $ ( 0.1 ) $ 6.3 Termination of lease agreements 1.0 0.3 ( 0.7 ) 1.3 1.9 Other 0.2 0.2 ( 0.2 ) ( 0.1 ) 0.1 Total restructuring liability $ 9.3 $ 3.9 $ ( 6.0 ) $ 1.1 $ 8.3

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2022
Income Tax Disclosure [Abstract]
Income Taxes	11. Income Taxes For the three months ended June 30, 2022, we recorded income tax expense of $ 12.4 million on income before taxes of $ 51.8 million . For the three months ended June 30, 2021, we recorded income tax expense of $ 1.7 million on income before taxes of $ 50.3 million . The $ 10.7 million increase in tax expense compared to the prior year period was driven by the tax benefit associated with the revaluation of deferred tax assets due to changes in the enacted statutory rates which was recorded in the prior year. For the six months ended June 30, 2022, we recorded income tax expense of $ 14.1 million on income before taxes of $ 50.8 million . For the six months ended June 30, 2021, we recorded an income tax benefit of $ 4.2 million on income before taxes of $ 24.0 million . The $ 18.3 million increase in tax expense compared to the prior year period was driven by the tax benefit associated with the revaluation of deferred tax assets due to changes in the enacted statutory rates which was recorded in the prior year, and the increase in income before taxes during the first half of 2022 compared to the first half of 2021. The U.S. federal statute of limitations remains open for the years 2018 and forward. Foreign and U.S. state jurisdictions have statutes of limitations generally ranging from 2 to 5 years. Years still open to examination by foreign tax authorities in major jurisdictions include Australia ( 2017 forward), Brazil ( 2015 forward), Canada ( 2017 forward), Germany ( 2016 forward), Sweden ( 2016 forward) and the U.K. ( 2019 forward). We are currently under examination in certain foreign jurisdictions. Brazil Tax Assessments In connection with our May 1, 2012, acquisition of the Mead Consumer and Office Products business ("Mead C&OP"), we assumed all of the tax liabilities for the acquired foreign operations including Tilibra Produtos de Papelaria Ltda. ("Tilibra"). In December of 2012, the Federal Revenue Department of the Ministry of Finance of Brazil ("FRD") issued a tax assessment against Tilibra, challenging the tax deduction of goodwill from Tilibra's taxable income for the year 2007 (the "First Assessment"). A second assessment challenging the deduction of goodwill from Tilibra's taxable income for the years 2008, 2009 and 2010 was issued by FRD in October 2013 (the "Second Assessment" and together with the First Assessment, the "Brazil Tax Assessments"). The final administrative appeal of the Second Assessment was decided against the Company in 2017. In 2018, we appealed this decision to the judicial level. In the event we do not prevail at the judicial level, we will be required to pay an additional penalty representing attorneys' costs and fees; accordingly, in the first quarter of 2019, the Company recorded an additional reserve in the amount of $ 5.6 million. In connection with the judicial challenge, we were required to provide security to guarantee payment of the Second Assessment should we not prevail. In the third quarter of 2020, the final administrative appeal of the First Assessment was decided against the Company and we determined that we would challenge this decision. In 2022, we challenged this adverse decision in the tax authority's lawsuit at the judicial level seeking to collect the tax. We recorded an additional expense in the third quarter of 2020 of $ 1.2 million representing additional attorneys' costs and fees, which we will be required to pay if we do not prevail at the judicial level. In connection with the judicial challenge, we were required to provide security to guarantee payment of the First Assessment should we not prevail. We believe we have meritorious defenses and intend to vigorously contest both of the Brazil Tax Assessments; however, there can be no assurances that we will ultimately prevail. The ultimate outcome will not be determined until the Brazilian judicial process is complete, which is expected to take a number of years. If the FRD's initial position is ultimately sustained, payment of the amount assessed would materially and adversely affect our cash flow in the year of settlement. Because there is no settled legal precedent on which to base a definitive opinion as to whether we will ultimately prevail, we consider the outcome of these disputes to be uncertain. Since it is not more likely than not that we will prevail, in 2012, we recorded a reserve in the amount of $ 44.5 million (at December 31, 2012 exchange rates) in consideration of this contingency, of which $ 43.3 million was recorded as an adjustment to the purchase price and which included the 2007-2012 tax years plus penalties and interest through December 2012. Because the Brazilian courts have determined that we will have to pay the standard penalty of 75 percent if we do not prevail on our challenges of the Brazil Tax Assessments instead of the 150 percent that could be imposed, we have included an assumption of penalties at 75 percent in this reserve. We will continue to actively monitor administrative and judicial court decisions and evaluate their impact, if any, on our legal assessment of the ultimate outcome of our disputes. In addition, we will continue to accrue interest related to this contingency until such time as the outcome is known or until evidence is presented that we are more likely than not to prevail. The time limit for issuing an assessment for 2011 and 2012 expired and we have reversed the amounts previously accrued for them. During the six months ended June 30, 2022 and 2021 , we accrued additional interest as a charge to current income tax expense of $ 0.7 million and $ 0.2 million, respectively. At current exchange rates, our accrual through June 30, 2022 , including tax, penalties and interest is $ 30.0 million (reported in "Other non-current liabilities").

Earnings Per Share

Earnings Per Share	6 Months Ended
	Jun. 30, 2022
Earnings Per Share [Abstract]
Earnings per Share	12. Earnings per Share Total outstanding shares as of June 30, 2022 and 2021, were 94.2 million and 95.6 million , respectively. Under our stock repurchase program, during each of the three and six months ended June 30, 2022, we repurchased and retired 2.7 million shares, and during each of the three and six months ended June 30, 2021, we repurchased and retired zero shares. For the six months ended June 30, 2022 and 2021, we acquired 0.3 million and 0.1 million shares, respectively, related to tax withholding for share-based compensation. The calculation of basic earnings per share of common stock is based on the weighted-average number of shares of common stock outstanding in the year, or period, over which they were outstanding. Our calculation of diluted earnings per share of common stock assumes that any shares of common stock outstanding were increased by shares that would be issued upon exercise of those stock awards for which the average market price for the period exceeds the exercise price less the shares that could have been purchased by the Company with the related proceeds, including compensation expense measured but not yet recognized. The number of our weighted-average shares outstanding for the six months ended June 30, 2022 and 2021 was as follows: Three months ended June 30, Six Months Ended June 30, (in millions) 2022 2021 2022 2021 Weighted-average number of shares of common stock outstanding - basic 96.2 95.5 96.2 95.3 Stock options — 0.2 — 0.1 Restricted stock units 1.2 1.5 1.8 1.5 Weighted-average shares and assumed conversions - diluted 97.4 97.2 98.0 96.9 Awards of potentially dilutive shares of common stock, which have exercise prices that were higher than the average market price during the period, are not included in the computation of dilutive earnings per share as their effect would have been anti-dilutive. For the three and six months ended June 30, 2022, the number of anti-dilutive shares was approximately 10.2 million and 9.0 million , respectively. For the three and six months ended June 30, 2021, the number of anti-dilutive shares was approximately 8.1 million and 7.7 million , respectively.

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Jun. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	13. Derivative Financial Instruments We are exposed to various market risks, including changes in foreign currency exchange rates and interest rate changes. We enter into financial instruments to manage and reduce the impact of these risks, not for trading or speculative purposes. The counterparties to these financial instruments are major financial institutions. We continually monitor our foreign currency exposures in order to maximize the overall effectiveness of our foreign currency hedge positions. Principal currencies hedged against the U.S. dollar include the Euro, Australian dollar, Canadian dollar, Swedish krona, British pound and Japanese yen. We are subject to credit risk, which relates to the ability of counterparties to meet their contractual payment obligations or the potential non-performance by counterparties to financial instrument contracts. Management continues to monitor the status of our counterparties and will take action, as appropriate, to further manage our counterparty credit risk. There are no credit contingency features in our derivative financial instruments. When hedge accounting is applicable, on the date we enter into a derivative, the derivative is designated as a hedge of the identified exposure. We measure the effectiveness of our hedging relationships both at hedge inception and on an ongoing basis. Forward Currency Contracts We enter into forward foreign currency contracts with third parties to reduce the effect of fluctuating foreign currencies, primarily on foreign denominated inventory purchases and intercompany loans. Our primary exposure to currency movements is in the Euro, the Swedish krona, the British pound, the Brazilian real, the Australian dollar, the Canadian dollar, and the Mexican peso. Forward currency contracts are used to hedge foreign denominated inventory purchases for Europe, Australia, Canada, Japan and New Zealand, and are designated as cash flow hedges. Unrealized gains and losses on these contracts are deferred in Accumulated Other Comprehensive Income ("AOCI") until the contracts are settled and the underlying hedged transactions relating to inventory purchases are recognized, at which time the deferred gains or losses will be reported in the "Cost of products sold" line in the Consolidated Statements of Operations. As of June 30, 2022 and December 31, 2021 , we had cash flow foreign exchange contracts outstanding with a U.S. dollar equivalent notional value of $ 138.3 million and $ 130.6 million, respectively, which were designated as hedges. Forward currency contracts used to hedge foreign denominated intercompany loans are not designated as hedging instruments. Gains and losses on these derivative instruments are recognized within "Other expense (income), net" in the Consolidated Statements of Operations and are largely offset by the change in the current translated value of the hedged item. The periods of the forward foreign exchange contracts correspond to the periods of the hedged transactions, with some relating to intercompany loans which extend beyond March 2023. As of June 30, 2022 and December 31, 2021 , we had foreign exchange contracts outstanding with a U.S. dollar equivalent notional value of $ 114.9 million and $ 84.2 million, respectively, which were not designated as hedges. The following table summarizes the fair value of our derivative financial instruments as of June 30, 2022 and December 31, 2021: Fair Value of Derivative Instruments Derivative Assets Derivative Liabilities (in millions) Balance Sheet Location June 30, December 31, Balance Sheet Location June 30, December 31, Derivatives designated as hedging instruments: Foreign exchange contracts Other current assets $ 8.9 $ 5.6 Other current liabilities $ — $ 0.1 Derivatives not designated as hedging instruments: Foreign exchange contracts Other current assets 0.9 0.7 Other current liabilities 0.6 0.6 Foreign exchange contracts Other non-current assets 9.5 10.2 Other non-current liabilities 9.5 10.2 Total derivatives $ 19.3 $ 16.5 $ 10.1 $ 10.9 The following tables summarize the pre-tax effect of our derivative financial instruments on the condensed consolidated financial statements for the three and six months ended June 30, 2022 and 2021: The Effect of Derivative Instruments in Cash Flow Hedging Relationships on the Consolidated Financial Statements Amount of Gain (Loss) Recognized in AOCI (Effective Portion) Location of (Gain) Loss Reclassified from AOCI to Income Amount of (Gain) Loss Reclassified from AOCI to Income (Effective Portion) Three Months Ended June 30, Three Months Ended June 30, (in millions) 2022 2021 2022 2021 Cash flow hedges: Foreign exchange contracts $ 9.3 $ ( 1.0 ) Cost of products sold $ ( 3.4 ) $ 1.3 The Effect of Derivative Instruments in Cash Flow Hedging Relationships on the Consolidated Financial Statements Amount of Gain (Loss) Recognized in AOCI (Effective Portion) Location of (Gain) Loss Reclassified from AOCI to Income Amount of (Gain) Loss Reclassified from AOCI to Income (Effective Portion) Six Months Ended June 30, Six Months Ended June 30, (in millions) 2022 2021 2022 2021 Cash flow hedges: Foreign exchange contracts $ 9.1 $ 3.4 Cost of products sold $ ( 5.8 ) $ 2.8 The Effect of Derivatives Not Designated as Hedging Instruments on the Consolidated Statements of Operations Location of (Gain) Loss Recognized in Income on Derivatives Amount of (Gain) Loss Amount of (Gain) Loss Recognized in Income Three months ended June 30, Six Months Ended (in millions) 2022 2021 2022 2021 Foreign exchange contracts Other expense, net $ ( 3.1 ) $ ( 1.2 ) $ ( 3.7 ) $ —

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Jun. 30, 2022
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	14. Fair Value of Financial Instruments In establishing a fair value, there is a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The basis of the fair value measurement is categorized in three levels, in order of priority, as described below: Level 1 Unadjusted quoted prices in active markets for identical assets or liabilities Level 2 Unadjusted quoted prices in active markets for similar assets or liabilities, or Unadjusted quoted prices for identical or similar assets or liabilities in markets that are not active, or Inputs other than quoted prices that are observable for the asset or liability Level 3 Unobservable inputs for the asset or liability We utilize the best available information in measuring fair value. Financial assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. We have determined that our financial assets and liabilities described in "Note 13. Derivative Financial Instruments" are Level 2 in the fair value hierarchy. The following table sets forth our financial assets and liabilities that were accounted for at fair value on a recurring basis as of June 30, 2022 and December 31, 2021: (in millions) June 30, December 31, Assets: Forward currency contracts $ 19.3 $ 16.5 Liabilities: Forward currency contracts $ 10.1 $ 10.9 Our forward currency contracts are included in "Other current assets," "Other current liabilities," "Other non-current assets," or "Other non-current liabilities." The forward foreign currency exchange contracts are primarily valued based on the foreign currency spot and forward rates quoted by banks or foreign currency dealers. As such, these derivative instruments are classified within Level 2. The fair values of cash and cash equivalents, notes payable to banks, accounts receivable and accounts payable approximate carrying amounts due principally to their short maturities. The carrying amount of total debt was $ 1,187.4 million and $ 1,006.7 million and the estimated fair value of total debt was $ 1,083.2 million and $ 1,002.3 million at June 30, 2022 and December 31, 2021, respectively. The fair values are determined from quoted market prices, where available, and from using current interest rates based on credit ratings and the remaining terms of maturity. Contingent consideration: The PowerA acquisition included an earnout of up to $ 55.0 million in cash, contingent upon PowerA achieving one- and two- year sales and profit growth objectives. Liabilities for contingent consideration are measured at fair value each reporting period, with the acquisition-date fair value included as part of the consideration transferred in the related business combination and subsequent changes in fair value recorded in operating income on the condensed consolidated statements of income. We use a Monte Carlo simulation model for contingent earnout payments, which are then discounted to present value. We classify the contingent consideration liabilities as Level 3 due to the lack of relevant observable market data over fair value inputs such as probability-weighting of payment outcomes. There have been no transfers of assets or liabilities into or out of Level 3 of the fair value hierarchy. The following table provides a reconciliation of the beginning and ending balance of the contingent consideration for the six months ended June 30, 2022: (in millions) Contingent Consideration Balance at December 31, 2021 $ 36.8 Change in fair value ( 6.8 ) Payments ( 27.0 ) Balance at June 30, 2022 $ 3.0

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income (Loss)	6 Months Ended
	Jun. 30, 2022
Equity [Abstract]
Accumulated Other Comprehensive Income (Loss)	15. Accumulated Other Comprehensive Income (Loss) AOCI is defined as net income (loss) and other changes in stockholders’ equity from transactions and other events from sources other than stockholders. The components of, and changes in, AOCI were as follows: (in millions) Derivative Financial Instruments Foreign Currency Adjustments Unrecognized Pension and Other Post-retirement Benefit Costs Accumulated Other Comprehensive Income (Loss) Balance at December 31, 2021 $ 4.0 $ ( 342.2 ) $ ( 197.3 ) $ ( 535.5 ) Other comprehensive income (loss) before reclassifications, net of tax 6.5 ( 21.9 ) 12.2 ( 3.2 ) Amounts reclassified from accumulated other comprehensive income (loss), net of tax ( 4.0 ) — 3.4 ( 0.6 ) Balance at June 30, 2022 $ 6.5 $ ( 364.1 ) $ ( 181.7 ) $ ( 539.3 ) The reclassifications out of AOCI for the three and six months ended June 30, 2022 and 2021 were as follows: Three months ended June 30, Six Months Ended (in millions) 2022 2021 2022 2021 Details about Accumulated Other Comprehensive Income (Loss) Components Amount Reclassified from Amount Reclassified from Accumulated Other Comprehensive Income (Loss) Location on Income Statement Gain (loss) on cash flow hedges: Foreign exchange contracts $ 3.4 $ ( 1.3 ) $ 5.8 $ ( 2.8 ) Cost of products sold Tax (expense) benefit ( 1.1 ) 0.4 ( 1.8 ) 0.8 Income tax expense (benefit) Net of tax $ 2.3 $ ( 0.9 ) $ 4.0 $ ( 2.0 ) Defined benefit plan items: Amortization of actuarial loss $ ( 2.1 ) $ ( 2.5 ) $ ( 4.3 ) $ ( 5.2 ) (1) Amortization of prior service cost ( 0.1 ) — ( 0.1 ) ( 1.6 ) (1) Total before tax ( 2.2 ) ( 2.5 ) ( 4.4 ) ( 6.8 ) Tax benefit 0.5 0.6 1.0 1.6 Income tax expense (benefit) Net of tax $ ( 1.7 ) $ ( 1.9 ) $ ( 3.4 ) $ ( 5.2 ) Total reclassifications for the period, net of tax $ 0.6 $ ( 2.8 ) $ 0.6 $ ( 7.2 ) (1) These AOCI components are included in the computation of net periodic benefit (income) cost for pension and post-retirement plans. See "Note 6. Pension and Other Retiree Benefits" for additional details.

Revenue Recognition

Revenue Recognition	6 Months Ended
	Jun. 30, 2022
Revenue from Contract with Customer [Abstract]
Revenue Recognition	16. Revenue Recognition Revenue is recognized when control of the promised goods or services is transferred to our customers in an amount reflective of the consideration we expect to receive in exchange for those goods or services. Taxes we collect concurrent with revenue producing activities are excluded from revenue. Incidental items incurred that are immaterial in the context of the contract are expensed. At the inception of each contract, the Company assesses the products and services promised and identifies each distinct performance obligation. To identify the performance obligations, the Company considers all products and services promised regardless of whether they are explicitly stated or implied within the contract or by standard business practices. Freight and distribution activities performed before the customer obtains control of the goods are not considered promised services under customer contracts and therefore are not distinct performance obligations. The Company has chosen to account for shipping and handling activities as a fulfillment activity, and therefore accrues the expense of freight and distribution in "Cost of products sold" when products are shipped. Service or Extended Maintenance Agreements ("EMAs"). As of December 31, 2021, there was $ 2.4 million of unearned revenue associated with outstanding EMAs, primarily reported in "Other current liabilities." During the three and six months ended June 30, 2022 , $ 0.2 million and $ 0.4 million of the unearned revenue was earned and recognized, respectively. As of June 30, 2022 , the amount of unearned revenue from EMAs was $ 2.7 million. We expect to earn and recognize approximately $ 2.3 million of the unearned amount in the next 12 months and $ 0.4 million in periods beyond the next 12 months. The following tables present our net sales disaggregated by regional geography (1) , by reporting business segments and our net sales disaggregated by the timing of revenue recognition for the three and six months ended June 30, 2022 and 2021: Three months ended June 30, Six Months Ended June 30, (in millions) 2022 2021 2022 2021 United States $ 274.4 $ 261.3 $ 462.9 $ 431.6 Canada 32.2 33.8 52.2 52.3 ACCO Brands North America 306.6 295.1 515.1 483.9 ACCO Brands EMEA (2) 137.9 157.0 294.0 313.9 Australia/N.Z. 26.2 29.4 56.2 61.5 Latin America 36.4 21.9 70.8 41.4 Asia-Pacific 13.9 14.4 26.5 27.6 ACCO Brands International 76.5 65.7 153.5 130.5 Net sales $ 521.0 $ 517.8 $ 962.6 $ 928.3 (1) Net sales are attributed to geographic areas based on the location of the selling subsidiaries. (2) ACCO Brands EMEA is comprised largely of Europe, but also includes export sales to the Middle East and Africa. Three months ended June 30, Six Months Ended June 30, (in millions) 2022 2021 2022 2021 Product and services transferred at a point in time $ 508.4 $ 504.9 $ 937.7 $ 900.6 Product and services transferred over time 12.6 12.9 24.9 27.7 Net sales $ 521.0 $ 517.8 $ 962.6 $ 928.3

Information on Business Segment

Information on Business Segments	6 Months Ended
	Jun. 30, 2022
Segment Reporting [Abstract]
Information on Business Segments	17. Information on Business Segments The Company has three operating business segments, each of which is comprised of different geographic regions. The Company's three segments are as follows: Operating Segment Geography Primary Brands Primary Products ACCO Brands North America United States and Canada PowerA ® , Five Star ® , AT-A-GLANCE ® , Quartet ® , Kensington ® , Swingline ® , GBC ® , Mead ® , Hilroy ® Computer and gaming accessories, school products, planners, storage and organization, dry erase boards and accessories, laminating, stapling and punching products. ACCO Brands EMEA Europe, Middle East and Africa Leitz ® , Rapid ® , Kensington ® , Esselte ® , Rexel ® , PowerA ® , GBC ® , NOBO ® , Derwent ® Storage and organization products (lever-arch binders, sheet protectors, indexes), computer and gaming accessories, stapling, punching, shredding, laminating, do-it-yourself tools, dry erase boards and writing and art products. ACCO Brands International Australia/N.Z., Latin America and Asia-Pacific Tilibra ® , GBC ® , Kensington ® , Marbig ® , Foroni ® , Barrilito ® , Artline ® *, PowerA ® , Spirax ® *Australia/N.Z. only School notebooks, storage and organization products (binders, sheet protectors and indexes), computer and gaming accessories, laminating, shredding, writing and arts products, janitorial supplies, dry erase boards, and stapling and punching products Customers We distribute our products through a wide variety of channels to ensure that our products are readily and conveniently available for purchase by consumers and other end-users, wherever they prefer to shop. These channels include mass retailers, e-tailers, discount, drug/grocery and variety chains, warehouse clubs, hardware and specialty stores, independent office product dealers, office superstores, wholesalers, contract stationers, and specialist technology businesses. We also sell directly through e-commerce sites and our direct sales organization. Net sales by reportable business segment for the three and six months ended June 30, 2022 and 2021 were as follows: Three Months Ended June 30, Six Months Ended June 30, (in millions) 2022 2021 2022 2021 ACCO Brands North America $ 306.6 $ 295.1 $ 515.1 $ 483.9 ACCO Brands EMEA 137.9 157.0 294.0 313.9 ACCO Brands International 76.5 65.7 153.5 130.5 Net sales $ 521.0 $ 517.8 $ 962.6 $ 928.3 Operating income (loss) by business segment for the three and six months ended June 30, 2022 and 2021 was as follows: Three Months Ended June 30, Six Months Ended June 30, (in millions) 2022 2021 2022 2021 ACCO Brands North America $ 50.7 $ 53.8 $ 64.6 $ 53.1 ACCO Brands EMEA ( 1.5 ) 9.9 4.1 26.7 ACCO Brands International 6.3 2.8 10.5 3.4 Segment Operating income 55.5 66.5 79.2 83.2 Change in fair value of contingent consideration 9.4 ( 4.9 ) 6.8 ( 11.6 ) Corporate ( 9.5 ) ( 11.7 ) ( 23.8 ) ( 22.8 ) Operating income⁽¹⁾ 55.4 49.9 62.2 48.8 Interest expense 10.8 11.6 20.5 24.8 Interest income ( 2.2 ) ( 0.5 ) ( 3.6 ) ( 0.6 ) Non-operating pension income ( 1.3 ) ( 2.5 ) ( 2.7 ) ( 3.3 ) Other (income) expense, net ( 3.7 ) ( 9.0 ) ( 2.8 ) 3.9 Income before income tax $ 51.8 $ 50.3 $ 50.8 $ 24.0 (1) Operating income (loss) is defined as i) net sales; ii) less cost of products sold; iii) less selling, general and administrative expenses; iv) less amortization of intangibles; v) less restructuring charges; and vi) less change in the fair value of contingent consideration.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	18. Commitments and Contingencies Pending Litigation - Brazil Tax Assessments In connection with our May 1, 2012, acquisition of the Mead C&OP business, we assumed all of the tax liabilities for the acquired foreign operations including Tilibra. For further information, see "Note 11. Income Taxes - Brazil Tax Assessments " for details on tax assessments issued by the FRD against Tilibra challenging the tax deduction of goodwill from Tilibra's taxable income for the years 2007 through 2010. If the FRD's initial position is ultimately sustained, payment of the amount assessed would materially and adversely affect our cash flow in the year of settlement. Brazil Tax Credits In May 2021, the Supreme Court of Brazil issued its final ruling in a leading case related to the computation of certain indirect taxes which provides that the indirect tax base should not include the gross amount of the value-added tax known as “ICMS.” The Supreme Court further ruled that taxpayers can recognize future operating credits ("Tax Credits") for excess indirect tax payments from past periods due to the inclusion of ICMS in the indirect tax base to the extent the taxpayer had filed judicial challenges seeking to recover excess tax payments prior to March 15, 2017 and for any excess tax payments made after March 15, 2017. Tilibra, one of our Brazilian subsidiaries, filed legal actions requesting recovery of these excess tax payments by way of future Tax Credits covering various time periods prior to March 15, 2017. Some of these cases have been finally decided in a court of law in favor of Tilibra, while others are still pending. Finalization of the remaining legal actions Tilibra has filed will result in additional Tax Credits. Foroni, in years prior to its acquisition, also filed a legal action in Brazil to recover these excess indirect tax payments and this legal action has been finalized. We are required under the quota purchase agreement to remit any recovered tax credits, less the applicable tax, to the former owners of Foroni to the extent they relate to a tax period prior to the acquisition date. For the six months ended June 30, 2022, we recorded Tax Credits of $ 3.8 million, which is included in “Other (income) expense, net", on our Consolidated Statements of Income. Finalizing the remaining legal actions Tilibra has filed will likely result in additional Tax Credits of approximately $ 10.2 million at some time in the future. The Tax Credits will be utilized against future tax obligations. Other Pending Litigation We are party to various lawsuits and regulatory proceedings, primarily related to alleged patent infringement, as well as other claims incidental to our business. In addition, we may be unaware of third-party claims of intellectual property infringement relating to our technology, brands, or products, and we may face other claims related to business operations. Any litigation regarding patents or other intellectual property could be costly and time-consuming and might require us to pay monetary damages or enter into costly license agreements. We also may be subject to injunctions against development and sale of certain of our products. It is the opinion of management that (other than the Brazil Tax Assessments) the ultimate resolution of currently outstanding matters will not have a material adverse effect on our financial condition, results of operations or cash flow. However, there is no assurance that we will ultimately be successful in our defense of any of these matters or that an adverse outcome in any matter will not affect our results of operations, financial condition or cash flow. Further, future claims, lawsuits and legal proceedings could materially and adversely affect our business, reputation, results of operations and financial condition.

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements and Adopted Accounting Standards (Policies)	6 Months Ended
	Jun. 30, 2022
Accounting Policies [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements In March 2020, the Financial Accounting Standards Board ("FASB") issued ASU 2020-04, Reference Rate Reform (Topic 848), which provides optional expedients and exceptions for applying current GAAP to contracts, hedging relationships, and other transactions affected by the transition from the use of LIBOR to an alternative reference rate. We are currently evaluating our contracts and hedging relationships that reference LIBOR and the potential effects of adopting this new guidance. However, we do not expect the changes related to the LIBOR successor rate procedures to have a material effect on the Company. The guidance can be adopted immediately and is applicable to contracts entered into on or before December 31, 2022. There are no recently issued accounting standards that are expected to have an impact on the Company’s financial condition, results of operations or cash flow. Recently Adopted Accounting Standards In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes , which removes certain exceptions for investments, intraperiod allocations and interim calculations, and adds guidance to reduce complexity in accounting for income taxes. Effective January 1, 2021, the Company adopted this standard. The adoption of this standard did not have a material impact on our condensed consolidated financial statements. There were no accounting standards that were adopted in the first six months of 2022 that had a material effect on the Company’s financial condition, results of operations or cash flow.
Leases	The Company determines if an arrangement is a lease at inception. Leases are included in "Right of use asset, leases" ("ROU Assets"), and the current portion of the lease liability is included in "Lease liabilities" and the non-current portion is included in "Long-term lease liabilities" in the Condensed Consolidated Balance Sheets. The Company currently has an immaterial amount of financing leases and leases with terms of more than one month and less than 12 months. ROU Assets and Lease liabilities are recognized based on the present value of lease payments over the lease term. Because most of the Company’s leases do not provide an implicit rate of return, the Company uses its incremental collateralized borrowing rate, on a regional basis, in determining the present value of lease payments. The incremental borrowing rate is dependent upon the duration of the lease and has been segmented into three groups of time. All leases within the same region and the same group of time share the same incremental borrowing rate. The Company has lease agreements with lease and non-lease components, which are combined for accounting purposes for all classes of assets except information technology equipment.

Long-Term Debt and Short-Term_2

Long-Term Debt and Short-Term Borrowings (Tables)	6 Months Ended
	Jun. 30, 2022
Debt Disclosure [Abstract]
Summary of Notes Payable and Long-Term Debt	Notes payable and long-term debt, listed in order of the priority of security interests in assets of the Company, consisted of the following as of June 30, 2022 and December 31, 2021: (in millions) June 30, December 31, Euro Senior Secured Term Loan A, due March 2026 (floating interest rate of 2.00 % at June 30, 2022 and 2.00 % at December 31, 2021) $ 228.8 $ 254.8 USD Senior Secured Term Loan A, due March 2026 (floating interest rate of 4.25 % at June 30, 2022 and 2.22 % at December 31, 2021) 86.7 89.0 Australian Dollar Senior Secured Term Loan A, due March 2026 (floating interest rate of 3.86 % at June 30, 2022 and 2.11 % at December 31, 2021) 36.4 39.4 U.S. Dollar Senior Secured Revolving Credit Facility, due March 2026 (floating interest rate of 3.45 % at June 30, 2022 and 2.10 % at December 31, 2021) 214.8 13.7 Australian Dollar Senior Secured Revolving Credit Facility, due March 2026 (floating interest rate of 3.18 % at June 30, 2022 and 2.06 % at December 31, 2021) 25.5 25.4 Senior Unsecured Notes, due March 2029 (fixed interest rate of 4.25 %) 575.0 575.0 Other borrowings 20.2 9.4 Total debt 1,187.4 1,006.7 Less: Current portion 54.1 43.0 Debt issuance costs, unamortized 8.8 9.6 Long-term debt, net $ 1,124.5 $ 954.1
Schedule of Maximum Consolidated Leverage Ratio	• amended the maximum Consolidated Leverage Ratio financial covenant for the fiscal quarters beginning March 31, 2021, as follows: Quarter Ended Maximum Consolidated Leverage Ratio March 2021 5.25 :1.00 June 2021 5.25 :1.00 September 2021 4.75 :1.00 December 2021 4.25 :1.00 March 2022 4.25 :1.00 June 2022 4.25 :1.00 September 2022 and thereafter 4.00 :1.00
Schedule of Applicable Rate and Undrawn Fee Based on Company's Consolidated Leverage Ratio	Consolidated Leverage Ratio Applicable Rate on Euro/AUD/CDN Dollar Loans Applicable Rate on Base Rate Loans Undrawn Fee > 4.50 to 1.00 2.50 % 1.50 % 0.500 % ≤ 4.50 to 1.00 and > 4.00 to 1.00 2.25 % 1.25 % 0.375 % ≤ 4.00 to 1.00 and > 3.50 to 1.00 2.00 % 1.00 % 0.350 % ≤ 3.50 to 1.00 and > 3.00 to 1.00 1.75 % 0.75 % 0.300 % ≤ 3.00 to 1.00 and > 2.00 to 1.00 1.50 % 0.50 % 0.250 % ≤ 2.00 to 1.00 1.25 % 0.25 % 0.200 %

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2022
Leases [Abstract]
Components of Lease Expense and Other Information	The components of lease expense were as follows: Three months ended Six Months Ended (in millions) 2022 2021 2022 2021 Operating lease cost $ 7.8 $ 7.0 $ 15.5 $ 14.2 Sublease income ( 0.6 ) ( 0.3 ) ( 1.2 ) ( 0.6 ) Total lease cost $ 7.2 $ 6.7 $ 14.3 $ 13.6 Other information related to leases was as follows: Six Months Ended (in millions, except lease term and discount rate) 2022 2021 Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 16.5 $ 15.1 Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 6.9 $ 3.7 As of June 30, 2022 Weighted average remaining lease term: Operating leases 6.5 years Weighted average discount rate: Operating leases 4.6 %
Schedule of Future Minimum Lease Payments, Net of Sub-Lease Income	Future minimum lease payments, net of sub-lease income, for all non-cancelable leases as of June 30, 2022, were as follows: (in millions) Operating 2022 $ 13.9 2023 22.7 2024 18.9 2025 15.8 2026 12.8 2027 8.6 Thereafter 29.1 Total minimum lease payments 121.8 Less imputed interest 17.5 Future minimum payments for leases, net of sublease rental income and imputed interest $ 104.3

Pension and Other Retiree Ben_2

Pension and Other Retiree Benefits (Tables)	6 Months Ended
	Jun. 30, 2022
Retirement Benefits [Abstract]
Components of Net Periodic Benefit Cost for Pension and Post-Retirement Plans	The components of net periodic benefit (income) cost for pension and post-retirement plans for the three and six months ended June 30, 2022 and 2021 were as follows: Three Months Ended June 30, Pension Post-retirement U.S. International (in millions) 2022 2021 2022 2021 2022 2021 Service cost $ — $ 0.1 $ 0.2 $ 0.4 $ — $ — Interest cost 1.2 1.2 2.4 1.6 — — Expected return on plan assets ( 2.7 ) ( 2.8 ) ( 4.5 ) ( 5.0 ) — — Amortization of prior service cost — — 0.1 — — — Amortization of net loss (gain) 0.9 0.8 1.3 1.8 ( 0.1 ) ( 0.1 ) Net periodic benefit income (2) $ ( 0.6 ) $ ( 0.7 ) $ ( 0.5 ) $ ( 1.2 ) $ ( 0.1 ) $ ( 0.1 ) Six Months Ended June 30, Pension Post-retirement U.S. International (in millions) 2022 2021 2022 2021 2022 2021 Service cost $ — $ 0.5 $ 0.5 $ 0.8 $ — $ — Interest cost 2.4 2.2 4.9 3.2 — — Expected return on plan assets ( 5.4 ) ( 5.6 ) ( 9.1 ) ( 9.8 ) — — Amortization of prior service cost — 0.1 0.1 0.1 — — Amortization of net loss (gain) 1.8 1.8 2.7 3.6 ( 0.2 ) ( 0.2 ) Curtailment loss (1) — 1.4 — — — — Net periodic benefit (income) cost (2) $ ( 1.2 ) $ 0.4 $ ( 0.9 ) $ ( 2.1 ) $ ( 0.2 ) $ ( 0.2 ) (1) Curtailment loss of $ 1.4 million due to the pension benefit freeze for the Sidney group under the ACCO Brands Corporation Pension Plan. (2) The components of net periodic benefit (income) cost, other than service cost, are included in the line "Non-operating pension income" in the Consolidated Statements of Income.

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2022
Share-based Payment Arrangement [Abstract]
Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan	The following table summarizes our stock-based compensation expense (including stock options, restricted stock units ("RSUs") and performance stock units ("PSUs")) for the three and six months ended June 30, 2022 and 2021: Three months ended Six Months Ended (in millions) 2022 2021 2022 2021 Stock option compensation expense $ 0.6 $ 0.6 $ 2.7 $ 2.3 RSU compensation expense 0.9 0.9 3.0 3.4 PSU compensation expense 0.8 2.7 1.5 3.3 Total stock-based compensation expense $ 2.3 $ 4.2 $ 7.2 $ 9.0
Schedule of Unrecognized Compensation Cost, Nonvested Awards	The following table summarizes our unrecognized compensation expense and the weighted-average period over which the expense will be recognized as of June 30, 2022: June 30, 2022 (in millions, except weighted average years) Unrecognized Compensation Expense Weighted Average Years Expense To Be Recognized Over Stock options $ 4.9 2.3 RSUs $ 5.7 2.2 PSUs $ 11.0 2.1

Inventories (Tables)

Inventories (Tables)	6 Months Ended
	Jun. 30, 2022
Inventory Disclosure [Abstract]
Components of Inventories	The components of inventories were as follows: (in millions) June 30, December 31, Raw materials $ 71.8 $ 67.5 Work in process 4.3 4.1 Finished goods 395.4 356.4 Total inventories $ 471.5 $ 428.0

Goodwill and Identifiable Int_2

Goodwill and Identifiable Intangible Assets (Tables)	6 Months Ended
	Jun. 30, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Changes in Net Carrying Amount of Goodwill by Segment	Changes in the net carrying amount of goodwill by segment were as follows: (in millions) ACCO Brands North America ACCO Brands EMEA ACCO Brands International Total Balance at December 31, 2021 $ 446.7 $ 178.6 $ 177.2 $ 802.5 Foreign currency translation — ( 24.0 ) 0.7 ( 23.3 ) Balance at June 30, 2022 $ 446.7 $ 154.6 $ 177.9 $ 779.2
Gross Carrying Value and Accumulated Amortization by Class of Identifiable Intangible Assets	The gross carrying value and accumulated amortization by class of identifiable intangible assets as of June 30, 2022 and December 31, 2021, were as follows: June 30, 2022 December 31, 2021 (in millions) Gross Carrying Amounts Accumulated Amortization Net Book Value Gross Carrying Amounts Accumulated Amortization Net Book Value Indefinite-lived intangible assets: Trade names (1) $ 408.2 $ ( 44.5 ) $ 363.7 $ 417.6 $ ( 44.5 ) $ 373.1 Amortizable intangible assets: Trade names 370.5 ( 116.3 ) 254.2 373.2 ( 110.5 ) 262.7 Customer and contractual relationships 355.5 ( 187.5 ) 168.0 366.5 ( 182.4 ) 184.1 Vendor relationships 82.4 ( 8.5 ) 73.9 82.4 ( 5.7 ) 76.7 Patents 8.0 ( 3.2 ) 4.8 8.6 ( 3.0 ) 5.6 Subtotal 816.4 ( 315.5 ) 500.9 830.7 ( 301.6 ) 529.1 Total identifiable intangibles $ 1,224.6 $ ( 360.0 ) $ 864.6 $ 1,248.3 $ ( 346.1 ) $ 902.2 (1) Accumulated amortization prior to the adoption of authoritative guidance on goodwill and other intangible assets, at which time further amortization ceased.
Estimated Amortization Expense for Future Periods	Estimated amortization expense for amortizable intangible assets, as of June 30, 2022, for the current year and the next five years is as follows: (in millions) 2022 2023 2024 2025 2026 2027 Estimated amortization expense (2) $ 42.4 $ 40.1 $ 38.5 $ 36.9 $ 34.7 $ 32.2 (2) Actual amounts of amortization expense may differ from estimated amounts due to changes in foreign currency exchange rates, additional intangible asset acquisitions, impairment of intangible assets, accelerated amortization of intangible assets and other events.

Restructuring (Tables)

Restructuring (Tables)	6 Months Ended
	Jun. 30, 2022
Restructuring and Related Activities [Abstract]
Summary of Activity in Restructuring Accounts	The summary of the activity in the restructuring liability for the six months ended June 30, 2022, was as follows: Balance at Non-cash Items / Balance at (in millions) December 31, 2021 Provision Cash Currency June 30, 2022 Employee termination costs (1) $ 3.4 $ 1.8 $ ( 2.0 ) $ ( 0.1 ) $ 3.1 Termination of lease agreements (2) 1.1 — ( 0.8 ) — 0.3 Other — 0.4 ( 0.4 ) — — Total restructuring liability $ 4.5 $ 2.2 $ ( 3.2 ) $ ( 0.1 ) $ 3.4 (1) We expect the remaining $ 3.1 million employee termination costs to be substantially paid in the next twelve months . (2) We expect the remaining $ 0.3 million lease termination costs to be substantially paid in the next six months . The summary of the activity in the restructuring liability for the six months ended June 30, 2021, was as follows: Balance at Non-cash Items / Balance at (in millions) December 31, 2020 Provision Cash Currency June 30, 2021 Employee termination costs $ 8.1 $ 3.4 $ ( 5.1 ) $ ( 0.1 ) $ 6.3 Termination of lease agreements 1.0 0.3 ( 0.7 ) 1.3 1.9 Other 0.2 0.2 ( 0.2 ) ( 0.1 ) 0.1 Total restructuring liability $ 9.3 $ 3.9 $ ( 6.0 ) $ 1.1 $ 8.3

Earnings Per Share (Tables)

Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2022
Earnings Per Share [Abstract]
Summary of Number of Weighted-Average Shares Outstanding	The number of our weighted-average shares outstanding for the six months ended June 30, 2022 and 2021 was as follows: Three months ended June 30, Six Months Ended June 30, (in millions) 2022 2021 2022 2021 Weighted-average number of shares of common stock outstanding - basic 96.2 95.5 96.2 95.3 Stock options — 0.2 — 0.1 Restricted stock units 1.2 1.5 1.8 1.5 Weighted-average shares and assumed conversions - diluted 97.4 97.2 98.0 96.9

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	The following table summarizes the fair value of our derivative financial instruments as of June 30, 2022 and December 31, 2021: Fair Value of Derivative Instruments Derivative Assets Derivative Liabilities (in millions) Balance Sheet Location June 30, December 31, Balance Sheet Location June 30, December 31, Derivatives designated as hedging instruments: Foreign exchange contracts Other current assets $ 8.9 $ 5.6 Other current liabilities $ — $ 0.1 Derivatives not designated as hedging instruments: Foreign exchange contracts Other current assets 0.9 0.7 Other current liabilities 0.6 0.6 Foreign exchange contracts Other non-current assets 9.5 10.2 Other non-current liabilities 9.5 10.2 Total derivatives $ 19.3 $ 16.5 $ 10.1 $ 10.9
Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance	The following tables summarize the pre-tax effect of our derivative financial instruments on the condensed consolidated financial statements for the three and six months ended June 30, 2022 and 2021: The Effect of Derivative Instruments in Cash Flow Hedging Relationships on the Consolidated Financial Statements Amount of Gain (Loss) Recognized in AOCI (Effective Portion) Location of (Gain) Loss Reclassified from AOCI to Income Amount of (Gain) Loss Reclassified from AOCI to Income (Effective Portion) Three Months Ended June 30, Three Months Ended June 30, (in millions) 2022 2021 2022 2021 Cash flow hedges: Foreign exchange contracts $ 9.3 $ ( 1.0 ) Cost of products sold $ ( 3.4 ) $ 1.3 The Effect of Derivative Instruments in Cash Flow Hedging Relationships on the Consolidated Financial Statements Amount of Gain (Loss) Recognized in AOCI (Effective Portion) Location of (Gain) Loss Reclassified from AOCI to Income Amount of (Gain) Loss Reclassified from AOCI to Income (Effective Portion) Six Months Ended June 30, Six Months Ended June 30, (in millions) 2022 2021 2022 2021 Cash flow hedges: Foreign exchange contracts $ 9.1 $ 3.4 Cost of products sold $ ( 5.8 ) $ 2.8 The Effect of Derivatives Not Designated as Hedging Instruments on the Consolidated Statements of Operations Location of (Gain) Loss Recognized in Income on Derivatives Amount of (Gain) Loss Amount of (Gain) Loss Recognized in Income Three months ended June 30, Six Months Ended (in millions) 2022 2021 2022 2021 Foreign exchange contracts Other expense, net $ ( 3.1 ) $ ( 1.2 ) $ ( 3.7 ) $ —

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2022
Fair Value Disclosures [Abstract]
Schedule of Fair Value of Assets and Liabilities Measured on a Recurring Basis	The following table sets forth our financial assets and liabilities that were accounted for at fair value on a recurring basis as of June 30, 2022 and December 31, 2021: (in millions) June 30, December 31, Assets: Forward currency contracts $ 19.3 $ 16.5 Liabilities: Forward currency contracts $ 10.1 $ 10.9
Summary of Reconciliation of Beginning and Ending Balance of Contingent Consideration	The following table provides a reconciliation of the beginning and ending balance of the contingent consideration for the six months ended June 30, 2022: (in millions) Contingent Consideration Balance at December 31, 2021 $ 36.8 Change in fair value ( 6.8 ) Payments ( 27.0 ) Balance at June 30, 2022 $ 3.0

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income (Loss) (Tables)	6 Months Ended
	Jun. 30, 2022
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The components of, and changes in, AOCI were as follows: (in millions) Derivative Financial Instruments Foreign Currency Adjustments Unrecognized Pension and Other Post-retirement Benefit Costs Accumulated Other Comprehensive Income (Loss) Balance at December 31, 2021 $ 4.0 $ ( 342.2 ) $ ( 197.3 ) $ ( 535.5 ) Other comprehensive income (loss) before reclassifications, net of tax 6.5 ( 21.9 ) 12.2 ( 3.2 ) Amounts reclassified from accumulated other comprehensive income (loss), net of tax ( 4.0 ) — 3.4 ( 0.6 ) Balance at June 30, 2022 $ 6.5 $ ( 364.1 ) $ ( 181.7 ) $ ( 539.3 )
Schedule of Reclassifications Out of Accumulated Other Comprehensive Income (Loss)	The reclassifications out of AOCI for the three and six months ended June 30, 2022 and 2021 were as follows: Three months ended June 30, Six Months Ended (in millions) 2022 2021 2022 2021 Details about Accumulated Other Comprehensive Income (Loss) Components Amount Reclassified from Amount Reclassified from Accumulated Other Comprehensive Income (Loss) Location on Income Statement Gain (loss) on cash flow hedges: Foreign exchange contracts $ 3.4 $ ( 1.3 ) $ 5.8 $ ( 2.8 ) Cost of products sold Tax (expense) benefit ( 1.1 ) 0.4 ( 1.8 ) 0.8 Income tax expense (benefit) Net of tax $ 2.3 $ ( 0.9 ) $ 4.0 $ ( 2.0 ) Defined benefit plan items: Amortization of actuarial loss $ ( 2.1 ) $ ( 2.5 ) $ ( 4.3 ) $ ( 5.2 ) (1) Amortization of prior service cost ( 0.1 ) — ( 0.1 ) ( 1.6 ) (1) Total before tax ( 2.2 ) ( 2.5 ) ( 4.4 ) ( 6.8 ) Tax benefit 0.5 0.6 1.0 1.6 Income tax expense (benefit) Net of tax $ ( 1.7 ) $ ( 1.9 ) $ ( 3.4 ) $ ( 5.2 ) Total reclassifications for the period, net of tax $ 0.6 $ ( 2.8 ) $ 0.6 $ ( 7.2 ) (1) These AOCI components are included in the computation of net periodic benefit (income) cost for pension and post-retirement plans. See "Note 6. Pension and Other Retiree Benefits" for additional details.

Revenue Recognition (Tables)

Revenue Recognition (Tables)	6 Months Ended
	Jun. 30, 2022
Revenue from Contract with Customer [Abstract]
Disaggregation of Revenue	The following tables present our net sales disaggregated by regional geography (1) , by reporting business segments and our net sales disaggregated by the timing of revenue recognition for the three and six months ended June 30, 2022 and 2021: Three months ended June 30, Six Months Ended June 30, (in millions) 2022 2021 2022 2021 United States $ 274.4 $ 261.3 $ 462.9 $ 431.6 Canada 32.2 33.8 52.2 52.3 ACCO Brands North America 306.6 295.1 515.1 483.9 ACCO Brands EMEA (2) 137.9 157.0 294.0 313.9 Australia/N.Z. 26.2 29.4 56.2 61.5 Latin America 36.4 21.9 70.8 41.4 Asia-Pacific 13.9 14.4 26.5 27.6 ACCO Brands International 76.5 65.7 153.5 130.5 Net sales $ 521.0 $ 517.8 $ 962.6 $ 928.3 (1) Net sales are attributed to geographic areas based on the location of the selling subsidiaries. (2) ACCO Brands EMEA is comprised largely of Europe, but also includes export sales to the Middle East and Africa. Three months ended June 30, Six Months Ended June 30, (in millions) 2022 2021 2022 2021 Product and services transferred at a point in time $ 508.4 $ 504.9 $ 937.7 $ 900.6 Product and services transferred over time 12.6 12.9 24.9 27.7 Net sales $ 521.0 $ 517.8 $ 962.6 $ 928.3

Information on Business Segme_2

Information on Business Segments (Tables)	6 Months Ended
	Jun. 30, 2022
Segment Reporting [Abstract]
Schedule of Net Sales by Business Segment	Net sales by reportable business segment for the three and six months ended June 30, 2022 and 2021 were as follows: Three Months Ended June 30, Six Months Ended June 30, (in millions) 2022 2021 2022 2021 ACCO Brands North America $ 306.6 $ 295.1 $ 515.1 $ 483.9 ACCO Brands EMEA 137.9 157.0 294.0 313.9 ACCO Brands International 76.5 65.7 153.5 130.5 Net sales $ 521.0 $ 517.8 $ 962.6 $ 928.3
Schedule of Operating Income (Loss) by Business Segment	Operating income (loss) by business segment for the three and six months ended June 30, 2022 and 2021 was as follows: Three Months Ended June 30, Six Months Ended June 30, (in millions) 2022 2021 2022 2021 ACCO Brands North America $ 50.7 $ 53.8 $ 64.6 $ 53.1 ACCO Brands EMEA ( 1.5 ) 9.9 4.1 26.7 ACCO Brands International 6.3 2.8 10.5 3.4 Segment Operating income 55.5 66.5 79.2 83.2 Change in fair value of contingent consideration 9.4 ( 4.9 ) 6.8 ( 11.6 ) Corporate ( 9.5 ) ( 11.7 ) ( 23.8 ) ( 22.8 ) Operating income⁽¹⁾ 55.4 49.9 62.2 48.8 Interest expense 10.8 11.6 20.5 24.8 Interest income ( 2.2 ) ( 0.5 ) ( 3.6 ) ( 0.6 ) Non-operating pension income ( 1.3 ) ( 2.5 ) ( 2.7 ) ( 3.3 ) Other (income) expense, net ( 3.7 ) ( 9.0 ) ( 2.8 ) 3.9 Income before income tax $ 51.8 $ 50.3 $ 50.8 $ 24.0 (1) Operating income (loss) is defined as i) net sales; ii) less cost of products sold; iii) less selling, general and administrative expenses; iv) less amortization of intangibles; v) less restructuring charges; and vi) less change in the fair value of contingent consideration.

Acquisitions - Narrative (Detai

Acquisitions - Narrative (Details) - Apr. 01, 2021 - Franken € in Millions, $ in Millions	EUR (€)	USD ($)
Business Acquisition [Line Items]
Preliminary purchase price	€ 2.4	$ 2.8
Cash acquired		$ 1.1

Long-Term Debt and Short-Term_3

Long-Term Debt and Short-Term Borrowings - Summary of Notes Payable and Long-Term Debt (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Total debt	$ 1,187.4	$ 1,006.7
Current portion	54.1	43
Debt issuance costs, unamortized	8.8	9.6
Long-term debt, net	1,124.5	954.1
Other borrowings
Debt Instrument [Line Items]
Total debt	20.2	9.4
Senior Secured Notes | Euro Senior Secured Term Loan A, due March 2026 (floating interest rate of 1.75% at March 31, 2022 and 2% December 31, 2021)
Debt Instrument [Line Items]
Total debt	228.8	254.8
Senior Secured Notes | USD Senior Secured Term Loan A, due March 2026 (floating interest rate of 2.76% at March 31, 2022 and 2.22% at December 31, 2021)
Debt Instrument [Line Items]
Total debt	86.7	89
Senior Secured Notes | Australian Dollar Senior Secured Term Loan A, due March 2026 (floating interest rate of 2.02% at March 31, 2022 and 2.11% at December 31, 2021)
Debt Instrument [Line Items]
Total debt	36.4	39.4
Senior Secured Notes | U.S. Dollar Senior Secured Revolving Credit Facility, due March 2026 (floating interest rate of 2.17% at March 31, 2022 and 2.1% at December 31, 2021)
Debt Instrument [Line Items]
Total debt	214.8	13.7
Senior Secured Notes | Australian Dollar Senior Secured Revolving Credit Facility, due March 2026 (floating interest rate of 1.9% at March 31, 2022 and 2.06% at December 31, 2021)
Debt Instrument [Line Items]
Total debt	25.5	25.4
Senior Notes | Senior Unsecured Notes, due March 2029 (fixed interest rate of 4.25%)
Debt Instrument [Line Items]
Total debt	$ 575	$ 575

Long-Term Debt and Short-Term_4

Long-Term Debt and Short-Term Borrowings - Summary of Notes Payable and Long-Term Debt (Parenthetical) (Details)	Jun. 30, 2022	Dec. 31, 2021
Senior Secured Notes | Euro Senior Secured Term Loan A, due March 2026 (floating interest rate of 1.75% at March 31, 2022 and 2% December 31, 2021)
Debt Instrument [Line Items]
Floating interest rate (percent)	2%	2%
Senior Secured Notes | USD Senior Secured Term Loan A, due March 2026 (floating interest rate of 2.76% at March 31, 2022 and 2.22% at December 31, 2021)
Debt Instrument [Line Items]
Floating interest rate (percent)	4.25%	2.22%
Senior Secured Notes | Australian Dollar Senior Secured Term Loan A, due March 2026 (floating interest rate of 2.02% at March 31, 2022 and 2.11% at December 31, 2021)
Debt Instrument [Line Items]
Floating interest rate (percent)	3.86%	2.11%
Senior Secured Notes | U.S. Dollar Senior Secured Revolving Credit Facility, due March 2026 (floating interest rate of 2.17% at March 31, 2022 and 2.1% at December 31, 2021)
Debt Instrument [Line Items]
Floating interest rate (percent)	3.45%	2.10%
Senior Secured Notes | Australian Dollar Senior Secured Revolving Credit Facility, due March 2026 (floating interest rate of 1.9% at March 31, 2022 and 2.06% at December 31, 2021)
Debt Instrument [Line Items]
Floating interest rate (percent)	3.18%	2.06%
Senior Notes | Senior Unsecured Notes, due March 2029 (fixed interest rate of 4.25%)
Debt Instrument [Line Items]
Stated interest rate (percent)	4.25%	4.25%

Long-Term Debt and Short-Term_5

Long-Term Debt and Short-Term Borrowings - Narrative (Details) € in Millions, $ in Millions, $ in Millions			6 Months Ended
	Jun. 30, 2022 USD ($)	Jan. 27, 2017 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Mar. 15, 2021 USD ($)	May 01, 2020 USD ($)	May 23, 2019	May 22, 2019	Jan. 27, 2017 EUR (€)	Jan. 27, 2017 AUD ($)
Debt Instrument [Line Items]
Total debt	$ 1,187.4		$ 1,187.4		$ 1,006.7
Cash and cash equivalents of the loan parties							$ 100
Debt issuance costs			$ 0	$ 10.5
Senior Secured Credit Facility Due January 2022
Debt Instrument [Line Items]
Credit agreement, term		5 years
Senior Secured Notes
Debt Instrument [Line Items]
Credit agreement, face amount		$ 320.8								€ 300
Maximum borrowing capacity		100
Senior Secured Notes | Senior Secured Credit Facility Due January 2022 | Minimum
Debt Instrument [Line Items]
Fixed coverage ratio									1.25
Senior Secured Notes | AUD Term Loan A
Debt Instrument [Line Items]
Maximum borrowing capacity		60.4									$ 80
Senior Secured Notes | Senior Secured Credit Facility Due March 2026
Debt Instrument [Line Items]
Maximum consolidated leverage ratio	4.25		4.25
Consolidated leverage ratio	3.97		3.97
Senior Secured Notes | Senior Secured Credit Facility Due May 2024 | Minimum
Debt Instrument [Line Items]
Interest coverage ratio								3
Senior Notes | Senior Unsecured Notes, due March 2029 (fixed interest rate of 4.25%)
Debt Instrument [Line Items]
Credit agreement, face amount						$ 575
Total debt	$ 575		$ 575		$ 575
Stated percentage	4.25%		4.25%		4.25%
Revolving Facility | Senior Secured Notes
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 0
Revolving Facility | Senior Secured Notes | Senior Secured Credit Facility Due March 2026
Debt Instrument [Line Items]
Credit agreement, maturity date	Mar. 31, 2026
Total debt	$ 240.3		$ 240.3
Amount available for borrowings under Senior Secured Revolving Credit Facilities	348.7		348.7
Letters of credit outstanding	$ 11		$ 11

Long-Term Debt and Short-Term_6

Long-Term Debt and Short-Term Borrowings - Schedule of Maximum Consolidated Leverage Ratio (Details) - Senior Secured Credit Facility Due May 2024 - Secured Debt	Jun. 30, 2022
March 2021
Line of Credit Facility [Line Items]
Maximum consolidated leverage ratio	5.25
June 2021
Line of Credit Facility [Line Items]
Maximum consolidated leverage ratio	5.25
September 2021
Line of Credit Facility [Line Items]
Maximum consolidated leverage ratio	4.75
December 2021
Line of Credit Facility [Line Items]
Maximum consolidated leverage ratio	4.25
March 2022
Line of Credit Facility [Line Items]
Maximum consolidated leverage ratio	4.25
June 2022
Line of Credit Facility [Line Items]
Maximum consolidated leverage ratio	4.25
September 2022 and thereafter
Line of Credit Facility [Line Items]
Maximum consolidated leverage ratio	4

Long-Term Debt and Short-Term_7

Long-Term Debt and Short-Term Borrowings - Schedule of Applicable Rate and Undrawn Fee Based on Company's Consolidated Leverage Ratio (Details) - Secured Debt - Senior Secured Credit Facility Due March 2026	6 Months Ended
	Jun. 30, 2022
> 4.50 to 1.00
Debt Instrument [Line Items]
Undrawn fee	50%
> 4.50 to 1.00 | Applicable Rate on Euro/AUD/CDN Dollar Loans
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	250%
> 4.50 to 1.00 | Applicable Rate on Base Rate Loans
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	150%
≤ 4.50 to 1.00 and > 4.00 to 1.00
Debt Instrument [Line Items]
Undrawn fee	37.50%
≤ 4.50 to 1.00 and > 4.00 to 1.00 | Applicable Rate on Euro/AUD/CDN Dollar Loans
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	225%
≤ 4.50 to 1.00 and > 4.00 to 1.00 | Applicable Rate on Base Rate Loans
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	125%
≤ 4.00 to 1.00 and > 3.50 to 1.00
Debt Instrument [Line Items]
Undrawn fee	35%
≤ 4.00 to 1.00 and > 3.50 to 1.00 | Applicable Rate on Euro/AUD/CDN Dollar Loans
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	200%
≤ 4.00 to 1.00 and > 3.50 to 1.00 | Applicable Rate on Base Rate Loans
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	100%
≤ 3.50 to 1.00 and > 3.00 to 1.00
Debt Instrument [Line Items]
Undrawn fee	30%
≤ 3.50 to 1.00 and > 3.00 to 1.00 | Applicable Rate on Euro/AUD/CDN Dollar Loans
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	175%
≤ 3.50 to 1.00 and > 3.00 to 1.00 | Applicable Rate on Base Rate Loans
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	75%
≤ 3.00 to 1.00 and > 2.00 to 1.00
Debt Instrument [Line Items]
Undrawn fee	25%
≤ 3.00 to 1.00 and > 2.00 to 1.00 | Applicable Rate on Euro/AUD/CDN Dollar Loans
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	150%
≤ 3.00 to 1.00 and > 2.00 to 1.00 | Applicable Rate on Base Rate Loans
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	50%
≤ 2.00 to 1.00
Debt Instrument [Line Items]
Undrawn fee	20%
≤ 2.00 to 1.00 | Applicable Rate on Euro/AUD/CDN Dollar Loans
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	125%
≤ 2.00 to 1.00 | Applicable Rate on Base Rate Loans
Debt Instrument [Line Items]
Basis spread on variable rate (percent)	25%

Leases - Components of Lease Ex

Leases - Components of Lease Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Leases [Abstract]
Operating lease cost	$ 7.8	$ 7	$ 15.5	$ 14.2
Sublease income	(0.6)	(0.3)	(1.2)	(0.6)
Total finance lease cost	$ 7.2	$ 6.7	$ 14.3	$ 13.6

Leases - Summary of Other Infor

Leases - Summary of Other Information (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Leases [Abstract]
Operating cash flows from operating leases	$ 16.5	$ 15.1
Right-of-use assets obtained in exchange for lease obligations, operating leases	$ 6.9	$ 3.7
Weighted average remaining lease term, operating leases (in years)	6 years 6 months
Weighted average discount rate, operating leases (as a percentage)	4.60%

Leases - Schedule of Future Min

Leases - Schedule of Future Minimum Lease Payments, Net of Sub-Lease Income (Details) $ in Millions	Jun. 30, 2022 USD ($)
Operating Leases
2022	$ 13.9
2023	22.7
2024	18.9
2025	15.8
2026	12.8
2027	8.6
Thereafter	29.1
Total minimum lease payments	121.8
Less imputed interest	17.5
Future minimum payments for leases, net of sublease rental income and imputed interest	$ 104.3

Pension and Other Retiree Ben_3

Pension and Other Retiree Benefits - Net Periodic Benefit Expense (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Defined Benefit Plan Disclosure [Line Items]
Expected contributions to defined benefit plans for 2022		$ 17.6		$ 17.6
Contributions by company to date				6.6
Pension | United States
Defined Benefit Plan Disclosure [Line Items]
Service cost		0	$ 0.1	0	$ 0.5
Interest cost		1.2	1.2	2.4	2.2
Expected return on plan assets		(2.7)	(2.8)	(5.4)	(5.6)
Amortization of prior service cost		0	0	0	0.1
Amortization of net loss (gain)		0.9	0.8	1.8	1.8
Curtailment loss	[1]			0	1.4
Net periodic benefit (income) cost	[2]	(0.6)	(0.7)	(1.2)	0.4
Pension | International
Defined Benefit Plan Disclosure [Line Items]
Service cost		0.2	0.4	0.5	0.8
Interest cost		2.4	1.6	4.9	3.2
Expected return on plan assets		(4.5)	(5)	(9.1)	(9.8)
Amortization of prior service cost		0.1	0	0.1	0.1
Amortization of net loss (gain)		1.3	1.8	2.7	3.6
Curtailment loss	[1]			0	0
Net periodic benefit (income) cost	[2]	(0.5)	(1.2)	(0.9)	(2.1)
Post-retirement
Defined Benefit Plan Disclosure [Line Items]
Service cost		0	0	0	0
Interest cost		0	0	0	0
Expected return on plan assets		0	0	0	0
Amortization of prior service cost		0	0	0	0
Amortization of net loss (gain)		(0.1)	(0.1)	(0.2)	(0.2)
Curtailment loss	[1]			0	0
Net periodic benefit (income) cost	[2]	$ (0.1)	$ (0.1)	$ (0.2)	$ (0.2)
[1] Curtailment loss of $ 1.4 million due to the pension benefit freeze for the Sidney group under the ACCO Brands Corporation Pension Plan. The components of net periodic benefit (income) cost, other than service cost, are included in the line "Non-operating pension income" in the Consolidated Statements of Income.

Stock-Based Compensation - Shar

Stock-Based Compensation - Share-based Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense (income)	$ 2.3	$ 4.2	$ 7.2	$ 9
Stock option compensation expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense (income)	0.6	0.6	2.7	2.3
RSU compensation expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense (income)	0.9	0.9	3	3.4
PSU compensation expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense (income)	$ 0.8	$ 2.7	$ 1.5	$ 3.3

Stock-Based Compensation - Narr

Stock-Based Compensation - Narrative (Details)	3 Months Ended
	Jun. 30, 2022 shares
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted in period (shares)	127,174
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments other than options granted in period (shares)	38,153
Restricted stock units | Non-employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments other than options granted in period (shares)	132,632
Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity instruments other than options granted in period (shares)	703,379

Stock-Based Compensation - Unre

Stock-Based Compensation - Unrecognized Compensation Expense (Details) $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($)
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Expense	$ 4.9
Weighted Average Years Expense To Be Recognized Over	2 years 3 months 18 days
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Expense	$ 5.7
Weighted Average Years Expense To Be Recognized Over	2 years 2 months 12 days
Performance stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Expense	$ 11
Weighted Average Years Expense To Be Recognized Over	2 years 1 month 6 days

Inventories - Components of Inv

Inventories - Components of Inventories (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Inventory Disclosure [Abstract]
Raw materials	$ 71.8	$ 67.5
Work in process	4.3	4.1
Finished goods	395.4	356.4
Total inventories	$ 471.5	$ 428

Goodwill and Identifiable Int_3

Goodwill and Identifiable Intangible Assets - Narrative (Details)		3 Months Ended		6 Months Ended
	May 31, 2022 USD ($)	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) Reportingunit	Jun. 30, 2021 USD ($)	Dec. 31, 2016 USD ($)
Finite-Lived Intangible Assets [Line Items]
Number of reporting units | Reportingunit				3
Goodwill, accumulated impairment losses	$ 0					$ 215,100,000
Amortization of intangibles		$ 10,500,000	$ 11,600,000	$ 21,600,000	$ 23,600,000
Impairment of indefinite-lived trade names	$ 0
Maximum | ACCO Brands North America
Finite-Lived Intangible Assets [Line Items]
Percentage of excess fair value over carrying value	10%
Maximum | ACCO Brands International
Finite-Lived Intangible Assets [Line Items]
Percentage of excess fair value over carrying value	10%

Goodwill and Identifiable Int_4

Goodwill and Identifiable Intangible Assets - Summary of Changes in Net Carrying Amount Goodwill By Segment (Details) $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($)
Goodwill [Roll Forward]
Balance at December 31, 2021	$ 802.5
Foreign currency translation	(23.3)
Balance at June 30, 2022	779.2
ACCO Brands North America
Goodwill [Roll Forward]
Balance at December 31, 2021	446.7
Foreign currency translation	0
Balance at June 30, 2022	446.7
ACCO Brands EMEA
Goodwill [Roll Forward]
Balance at December 31, 2021	178.6
Foreign currency translation	(24)
Balance at June 30, 2022	154.6
ACCO Brands International
Goodwill [Roll Forward]
Balance at December 31, 2021	177.2
Foreign currency translation	0.7
Balance at June 30, 2022	$ 177.9

Goodwill and Identifiable Int_5

Goodwill and Identifiable Intangible Assets - Summary of Gross Carrying Value and Accumulated Amortization By Class of Identifiable Intangible Assets (Details) - USD ($) $ in Millions		Jun. 30, 2022	Dec. 31, 2021
Amortizable intangible assets:
Amortizable intangible assets, Gross Carrying Amounts		$ 816.4	$ 830.7
Amortizable intangible assets, Accumulated Amortization		(315.5)	(301.6)
Amortizable intangible assets, Net Book Value		500.9	529.1
Total identifiable intangibles
Total identifiable intangible assets, Gross Carrying Amounts		1,224.6	1,248.3
Total identifiable intangibles, Accumulated Amortization		(360)	(346.1)
Total identifiable intangibles, Net Book Value		864.6	902.2
Trade Names
Amortizable intangible assets:
Amortizable intangible assets, Gross Carrying Amounts		370.5	373.2
Amortizable intangible assets, Accumulated Amortization		(116.3)	(110.5)
Amortizable intangible assets, Net Book Value		254.2	262.7
Customer and contractual relationships
Amortizable intangible assets:
Amortizable intangible assets, Gross Carrying Amounts		355.5	366.5
Amortizable intangible assets, Accumulated Amortization		(187.5)	(182.4)
Amortizable intangible assets, Net Book Value		168	184.1
Vendor Relationships
Amortizable intangible assets:
Amortizable intangible assets, Gross Carrying Amounts		82.4	82.4
Amortizable intangible assets, Accumulated Amortization		(8.5)	(5.7)
Amortizable intangible assets, Net Book Value		73.9	76.7
Patents
Amortizable intangible assets:
Amortizable intangible assets, Gross Carrying Amounts		8	8.6
Amortizable intangible assets, Accumulated Amortization		(3.2)	(3)
Amortizable intangible assets, Net Book Value		4.8	5.6
Trade Names
Indefinite-lived intangible assets:
Indefinite-lived intangible assets, Gross Carrying Amount	[1]	408.2	417.6
Indefinite-lived intangible asset, Accumulated Amortization	[1]	(44.5)	(44.5)
Indefinite-lived intangible assets, Net Book Value	[1]	$ 363.7	$ 373.1
[1] Accumulated amortization prior to the adoption of authoritative guidance on goodwill and other intangible assets, at which time further amortization ceased.

Goodwill and Identifiable Int_6

Goodwill and Identifiable Intangible Assets - Summary of Estimated Amortization Expense (Details) $ in Millions	Jun. 30, 2022 USD ($)	[1]
Goodwill and Intangible Assets Disclosure [Abstract]
Estimated amortization expense, 2022	$ 42.4
Estimated amortization expense, 2023	40.1
Estimated amortization expense, 2024	38.5
Estimated amortization expense, 2025	36.9
Estimated amortization expense, 2026	34.7
Estimated amortization expense, 2027	$ 32.2
[1] Actual amounts of amortization expense may differ from estimated amounts due to changes in foreign currency exchange rates, additional intangible asset acquisitions, impairment of intangible assets, accelerated amortization of intangible assets and other events.

Restructuring - Narrative (Deta

Restructuring - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Restructuring and Related Activities [Abstract]
Restructuring charges	$ 1,900,000	$ 0	$ 2,200,000	$ 3,900,000

Restructuring - Summary of Acti

Restructuring - Summary of Activity in Restructuring Liability (Details) - USD ($)	3 Months Ended			6 Months Ended
	Jun. 30, 2022		Jun. 30, 2021	Jun. 30, 2022		Jun. 30, 2021
Restructuring Reserve [Roll Forward]
Balance at Beginning of Period				$ 4,500,000		$ 9,300,000
Provision	$ 1,900,000		$ 0	2,200,000		3,900,000
Cash Expenditures				(3,200,000)		(6,000,000)
Non-cash Items/ Currency Change				(100,000)		1,100,000
Balance at End of Period	3,400,000		8,300,000	3,400,000		8,300,000
Employee termination costs
Restructuring Reserve [Roll Forward]
Balance at Beginning of Period				3,400,000	[1]	8,100,000
Provision				1,800,000	[1]	3,400,000
Cash Expenditures				(2,000,000)	[1]	(5,100,000)
Non-cash Items/ Currency Change				(100,000)	[1]	(100,000)
Balance at End of Period	3,100,000	[1]	6,300,000	3,100,000	[1]	6,300,000
Termination of lease agreements
Restructuring Reserve [Roll Forward]
Balance at Beginning of Period				1,100,000	[2]	1,000,000
Provision						300,000
Cash Expenditures				(800,000)	[2]	(700,000)
Non-cash Items/ Currency Change						1,300,000
Balance at End of Period	$ 300,000	[2]	1,900,000	300,000	[2]	1,900,000
Other
Restructuring Reserve [Roll Forward]
Balance at Beginning of Period						200,000
Provision				400,000		200,000
Cash Expenditures				$ (400,000)		(200,000)
Non-cash Items/ Currency Change						(100,000)
Balance at End of Period			$ 100,000			$ 100,000
[1] We expect the remaining $ 3.1 million employee termination costs to be substantially paid in the next twelve months . We expect the remaining $ 0.3 million lease termination costs to be substantially paid in the next six months .

Restructuring - Summary of Ac_2

Restructuring - Summary of Activity in Restructuring Liability (Parenthetical) (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2022		Dec. 31, 2021		Jun. 30, 2021	Dec. 31, 2020
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 3.4		$ 4.5		$ 8.3	$ 9.3
Employee termination costs
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 3.1	[1]	3.4	[1]	6.3	8.1
Payment period for restructuring costs	12 months
Termination of lease agreements
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 0.3	[2]	$ 1.1	[2]	$ 1.9	$ 1
Payment period for restructuring costs	6 months
[1] We expect the remaining $ 3.1 million employee termination costs to be substantially paid in the next twelve months . We expect the remaining $ 0.3 million lease termination costs to be substantially paid in the next six months .

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Sep. 30, 2020	Mar. 31, 2019	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2012
Income Tax Examination [Line Items]
Income tax expense (benefit)	$ 12.4	$ 1.7			$ 14.1	$ (4.2)
Income before income tax	51.8	$ 50.3			50.8	24
Increase (decrease) in income taxes	$ 10.7				$ 18.3
Domestic Tax Authority | Internal Revenue Service (IRS) | Earliest Tax Year
Income Tax Examination [Line Items]
Open tax year					2018
Foreign Tax Authority | Minimum
Income Tax Examination [Line Items]
Statutes of limitation, period					2 years
Foreign Tax Authority | Maximum
Income Tax Examination [Line Items]
Statutes of limitation, period					5 years
Foreign Tax Authority | Australian Taxation Office | Earliest Tax Year
Income Tax Examination [Line Items]
Open tax year					2017
Foreign Tax Authority | Secretariat of the Federal Revenue Bureau of Brazil
Income Tax Examination [Line Items]
Income tax examination, interest expense					$ 0.7	$ 0.2
Foreign Tax Authority | Secretariat of the Federal Revenue Bureau of Brazil | Minimum
Income Tax Examination [Line Items]
Penalty rate	75%				75%
Foreign Tax Authority | Secretariat of the Federal Revenue Bureau of Brazil | Earliest Tax Year
Income Tax Examination [Line Items]
Open tax year					2015
Foreign Tax Authority | Secretariat of the Federal Revenue Bureau of Brazil | Tax Year 2008 to 2010
Income Tax Examination [Line Items]
Additional reserve from a prior period			$ 1.2	$ 5.6
Foreign Tax Authority | Secretariat of the Federal Revenue Bureau of Brazil | Tax Year 2007 to 2012
Income Tax Examination [Line Items]
Unrecognized tax benefits							$ 44.5
Potential tax adjustment related to related to acquisition purchase price							$ 43.3
Foreign Tax Authority | Secretariat of the Federal Revenue Bureau of Brazil | Tax Year 2007 | Maximum
Income Tax Examination [Line Items]
Penalty rate	150%				150%
Foreign Tax Authority | Canada Revenue Agency | Earliest Tax Year
Income Tax Examination [Line Items]
Open tax year					2017
Foreign Tax Authority | Federal Ministry of Finance, Germany | Earliest Tax Year
Income Tax Examination [Line Items]
Open tax year					2016
Foreign Tax Authority | Swedish Tax Agency (Skatteverket) | Earliest Tax Year
Income Tax Examination [Line Items]
Open tax year					2016
Foreign Tax Authority | Her Majesty's Revenue and Customs (HMRC) | Earliest Tax Year
Income Tax Examination [Line Items]
Open tax year					2019
Foreign Tax Authority | Other Noncurrent Liabilities | Secretariat of the Federal Revenue Bureau of Brazil | Tax Year 2007 to 2010
Income Tax Examination [Line Items]
Unrecognized tax benefits	$ 30				$ 30
State and Local Jurisdiction | Minimum
Income Tax Examination [Line Items]
Statutes of limitation, period					2 years
State and Local Jurisdiction | Maximum
Income Tax Examination [Line Items]
Statutes of limitation, period					5 years

Earnings Per Share - Narrative

Earnings Per Share - Narrative (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Earnings Per Share [Abstract]
Common stock outstanding (in shares)	94,200,000	95,600,000	94,200,000	95,600,000
Common stock repurchases ( in shares)	(2,742,589)	0	(2,700,000)	0
Shares related to tax withholding for share-based compensation (in shares)			300,000	100,000
Potentially dilutive shares excluded from computation of dilutive earnings per share (in shares)	10,200,000	8,100,000	9,000,000	7,700,000

Earnings Per Share - Summary of

Earnings Per Share - Summary of Number of Weighted-Average Shares Outstanding (Details) - shares shares in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted-average number of common shares outstanding - basic (in shares)	96.2	95.5	96.2	95.3
Weighted-average number of common shares outstanding - diluted (in shares)	97.4	97.2	98	96.9
Stock options
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Incremental dilutive common shares (in shares)	0	0.2	0	0.1
Restricted stock units
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Incremental dilutive common shares (in shares)	1.2	1.5	1.8	1.5

Derivative Financial Instrume_3

Derivative Financial Instruments - Narrative (Details) - Foreign exchange contracts - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Derivatives not designated as hedging instruments
Derivative [Line Items]
U.S. dollar equivalent notional value	$ 114,900,000	$ 84,200,000
Cash Flow Hedging | Derivatives designated as hedging instruments
Derivative [Line Items]
U.S. dollar equivalent notional value	$ 138,300,000	$ 130,600,000

Derivative Financial Instrume_4

Derivative Financial Instruments - Fair Value of Derivative Instruments (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 19.3	$ 16.5
Derivative Liabilities	10.1	10.9
Foreign exchange contracts | Derivatives designated as hedging instruments | Other current assets
Derivatives, Fair Value [Line Items]
Derivative Assets	8.9	5.6
Foreign exchange contracts | Derivatives designated as hedging instruments | Other current liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0	0.1
Foreign exchange contracts | Derivatives not designated as hedging instruments | Other current assets
Derivatives, Fair Value [Line Items]
Derivative Assets	0.9	0.7
Foreign exchange contracts | Derivatives not designated as hedging instruments | Other current liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	0.6	0.6
Foreign exchange contracts | Derivatives not designated as hedging instruments | Other Noncurrent Assets
Derivatives, Fair Value [Line Items]
Derivative Assets	9.5	10.2
Foreign exchange contracts | Derivatives not designated as hedging instruments | Other Noncurrent Liabilities
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ 9.5	$ 10.2

Derivative Financial Instrume_5

Derivative Financial Instruments - Effect of Derivative Instruments (Details) - Foreign exchange contracts - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI (Effective Portion)	$ 9.3	$ (1)	$ 9.1	$ 3.4
Cost of products sold
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Gain) Loss Reclassified from AOCI to Income (Effective Portion)	(3.4)	1.3	(5.8)	$ 2.8
Derivatives not designated as hedging instruments | Other expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of (Gain) Loss Recognized in Income	$ (3.1)	$ (1.2)	$ (3.7)

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Schedule of Fair Value of Assets and Liabilities Measured on a Recurring Basis (Details) - Significant Other Observable Inputs (Level 2) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Forward currency contracts, assets	$ 19.3	$ 16.5
Forward currency contracts, liabilities	$ 10.1	$ 10.9

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total debt	$ 1,187.4	$ 1,006.7
PowerA
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Earnout (up to)	55
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Estimated fair value of total debt	$ 1,083.2	$ 1,002.3

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Summary of Reconciliation of Beginning and Ending Balance of Contingent Consideration (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Contingent Consideration [Roll Forward]
Change in fair value	$ (9.4)	$ 4.9	$ (6.8)	$ 11.6
PowerA
Contingent Consideration [Roll Forward]
Balance at December 31, 2021			36.8
Change in fair value			(6.8)
Payments			(27)
Balance at March 31, 2022	$ 3		$ 3

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income (Loss) - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at start of period	$ 864.8
Other comprehensive income (loss) before reclassifications, net of tax	(3.2)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	(0.6)
Balance at end of period	872.9
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at start of period	(535.5)
Balance at end of period	(539.3)
Derivative Financial Instruments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at start of period	4
Other comprehensive income (loss) before reclassifications, net of tax	6.5
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	(4)
Balance at end of period	6.5
Foreign Currency Adjustments
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at start of period	(342.2)
Other comprehensive income (loss) before reclassifications, net of tax	(21.9)
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	0
Balance at end of period	(364.1)
Unrecognized Pension and Other Post-retirement Benefit Costs
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Balance at start of period	(197.3)
Other comprehensive income (loss) before reclassifications, net of tax	12.2
Amounts reclassified from accumulated other comprehensive income (loss), net of tax	3.4
Balance at end of period	$ (181.7)

Accumulated Other Comprehensi_4

Accumulated Other Comprehensive Income (Loss) - Reclassification out of AOCI (Details) (Details) - USD ($)		3 Months Ended				6 Months Ended
		Jun. 30, 2022	Mar. 31, 2022	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2022	Jun. 30, 2021
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Cost of products sold		$ 371,000,000		$ 353,700,000		$ 693,000,000	$ 648,700,000
Other expense, net		3,700,000		9,000,000		2,800,000	(3,900,000)
Income tax expense (benefit)		(12,400,000)		(1,700,000)		(14,100,000)	4,200,000
Net income		39,400,000	$ (2,700,000)	48,600,000	$ (20,400,000)	36,700,000	28,200,000
Income before income tax		51,800,000		50,300,000		50,800,000	24,000,000
Amount Reclassified from Accumulated Other Comprehensive Income (Loss)
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Net income		600,000		(2,800,000)		600,000	(7,200,000)
Unrecognized Pension and Other Post-retirement Benefit Costs | Amount Reclassified from Accumulated Other Comprehensive Income (Loss)
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense (benefit)		500,000		600,000		1,000,000	1,600,000
Net income		(1,700,000)		(1,900,000)		(3,400,000)	(5,200,000)
Amortization of actuarial loss	[1]	(2,100,000)		(2,500,000)		(4,300,000)	(5,200,000)
Amortization of prior service cost	[1]	(100,000)		0		(100,000)	(1,600,000)
Income before income tax		(2,200,000)		(2,500,000)		(4,400,000)	(6,800,000)
Foreign exchange contracts | Derivative Financial Instruments | Amount Reclassified from Accumulated Other Comprehensive Income (Loss)
Reclassification Out of Accumulated Other Comprehensive Income [Line Items]
Cost of products sold		3,400,000		(1,300,000)		5,800,000	(2,800,000)
Income tax expense (benefit)		(1,100,000)		400,000		(1,800,000)	800,000
Net income		$ 2,300,000		$ (900,000)		$ 4,000,000	$ (2,000,000)
[1] These AOCI components are included in the computation of net periodic benefit (income) cost for pension and post-retirement plans. See "Note 6. Pension and Other Retiree Benefits" for additional details.

Revenue Recognition - Service o

Revenue Recognition - Service or Extended Maintenance Agreements (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2022	Dec. 31, 2021
Revenue from Contract with Customer [Abstract]
Unearned revenue associated with outstanding contracts	$ 2.7	$ 2.7	$ 2.4
Revenue recognized	$ 0.2	$ 0.4

Revenue Recognition - Unearned

Revenue Recognition - Unearned Revenue (Details) $ in Millions	Jun. 30, 2022 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Unearned revenue	$ 2.3
Expected timing of satisfaction	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-07-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Unearned revenue	$ 0.4
Expected timing of satisfaction	12 months

Revenue Recognition - Schedule

Revenue Recognition - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Net sales		$ 521	$ 517.8	$ 962.6	$ 928.3
Product and services transferred at a point in time
Disaggregation of Revenue [Line Items]
Net sales		508.4	504.9	937.7	900.6
Product and services transferred over time
Disaggregation of Revenue [Line Items]
Net sales		12.6	12.9	24.9	27.7
ACCO Brands North America
Disaggregation of Revenue [Line Items]
Net sales		306.6	295.1	515.1	483.9
ACCO Brands North America | United States
Disaggregation of Revenue [Line Items]
Net sales		274.4	261.3	462.9	431.6
ACCO Brands North America | Canada
Disaggregation of Revenue [Line Items]
Net sales		32.2	33.8	52.2	52.3
ACCO Brands EMEA
Disaggregation of Revenue [Line Items]
Net sales	[1]	137.9	157	294	313.9
ACCO Brands International
Disaggregation of Revenue [Line Items]
Net sales		76.5	65.7	153.5	130.5
ACCO Brands International | Australia/N.Z.
Disaggregation of Revenue [Line Items]
Net sales		26.2	29.4	56.2	61.5
ACCO Brands International | Latin America
Disaggregation of Revenue [Line Items]
Net sales		36.4	21.9	70.8	41.4
ACCO Brands International | Asia-Pacific
Disaggregation of Revenue [Line Items]
Net sales		$ 13.9	$ 14.4	$ 26.5	$ 27.6
[1] (2) ACCO Brands EMEA is comprised largely of Europe, but also includes export sales to the Middle East and Africa.

Information on Business Segme_3

Information on Business Segments - Narrative (Details)	6 Months Ended
	Jun. 30, 2022 Segment
Segment Reporting [Abstract]
Number of operating segments	3

Information on Business Segme_4

Information on Business Segments - Net Sales by Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Net sales	$ 521	$ 517.8	$ 962.6	$ 928.3
ACCO Brands North America
Segment Reporting Information [Line Items]
Net sales	306.6	295.1	515.1	483.9
ACCO Brands EMEA
Segment Reporting Information [Line Items]
Net sales	137.9	157	294	313.9
ACCO Brands International
Segment Reporting Information [Line Items]
Net sales	$ 76.5	$ 65.7	$ 153.5	$ 130.5

Information on Business Segme_5

Information on Business Segments - Operating Income (Loss) by Segment (Details) - USD ($)		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Segment Reporting Information [Line Items]
Operating income (loss)	[1]	$ 55,400,000	$ 49,900,000	$ 62,200,000	$ 48,800,000
Change in fair value of contingent consideration		9,400,000	(4,900,000)	6,800,000	(11,600,000)
Interest expense		10,800,000	11,600,000	20,500,000	24,800,000
Interest income		(2,200,000)	(500,000)	(3,600,000)	(600,000)
Non-operating pension income		(1,300,000)	(2,500,000)	(2,700,000)	(3,300,000)
Other (income) expense, net		(3,700,000)	(9,000,000)	(2,800,000)	3,900,000
Income before income tax		51,800,000	50,300,000	50,800,000	24,000,000
Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)		55,500,000	66,500,000	79,200,000	83,200,000
Corporate
Segment Reporting Information [Line Items]
Operating income (loss)		(9,500,000)	(11,700,000)	(23,800,000)	(22,800,000)
ACCO Brands North America | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)		50,700,000	(53,800,000)	64,600,000	53,100,000
ACCO Brands EMEA | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)		(1,500,000)	9,900,000	4,100,000	26,700,000
ACCO Brands International | Operating Segments
Segment Reporting Information [Line Items]
Operating income (loss)		$ 6,300,000	$ 2,800,000	$ 10,500,000	$ 3,400,000
[1] Operating income (loss) is defined as i) net sales; ii) less cost of products sold; iii) less selling, general and administrative expenses; iv) less amortization of intangibles; v) less restructuring charges; and vi) less change in the fair value of contingent consideration.

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details) - Foreign Tax Authority - Secretariat of the Federal Revenue Bureau of Brazil $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($)
Loss Contingencies [Line Items]
Brazil Tax Credits	$ 3.8
Additional tax credit	$ 10.2