Information on Business Segments (Revenue by Country) (Details) - USD ($) $ in Millions		3 Months Ended																12 Months Ended
		Dec. 31, 2015	[1]	Sep. 30, 2015	[1]	Jun. 30, 2015	[1]	Mar. 31, 2015	[1]	Dec. 31, 2014	[1]	Sep. 30, 2014	[1]	Jun. 30, 2014	[1]	Mar. 31, 2014	[1]	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Segment Reporting Information [Line Items]
Net sales		$ 412.1		$ 413.6		$ 394.7		$ 290.0		$ 459.9		$ 472.2		$ 427.7		$ 329.4		$ 1,510.4	$ 1,689.2	$ 1,765.1
U.S.
Segment Reporting Information [Line Items]
Net sales	[2]																	904.3	921.0	955.5
Canada
Segment Reporting Information [Line Items]
Net sales	[2]																	121.4	150.6	159.7
Netherlands
Segment Reporting Information [Line Items]
Net sales	[2]																	108.7	130.2	130.2
Brazil
Segment Reporting Information [Line Items]
Net sales	[2]																	92.0	154.0	157.2
Australia
Segment Reporting Information [Line Items]
Net sales	[2]																	91.8	108.5	119.8
U.K.
Segment Reporting Information [Line Items]
Net sales	[2]																	76.4	89.1	101.3
Mexico
Segment Reporting Information [Line Items]
Net sales	[2]																	49.6	58.8	58.9
Other countries
Segment Reporting Information [Line Items]
Net sales	[2]																	$ 66.2	$ 77.0	$ 82.5

[1] Historically, our business has experienced higher sales and earnings in the third and fourth quarters of the calendar year. Two principal factors contribute to this seasonality: (1) the office products industry, its customers and ACCO Brands specifically are major suppliers of products related to the "back-to-school" season, which occurs principally from June through September for our North American business and from November through February for our Australian and Brazilian businesses; and (2) several products we sell lend themselves to calendar year-end purchase timing, including AT-A-GLANCE® and Day-Timer® planners, paper organization and storage products (including bindery) and Kensington computer accessories, which have higher sales in the fourth quarter driven by traditionally strong fourth-quarter sales of personal computers and tablets.

[2] Net sales are attributed to geographic areas based on the location of the selling subsidiaries.