Consolidated Statement of Equity (Unaudited) - 9 months ended Sep. 30, 2016 - USD ($) shares in Millions, $ in Millions	Total	Common Stock	Capital in Excess of Par Value	Retained Earnings	Accumulated Other Comprehensive Loss	Attributable to Noncontrolling Interests
Beginning balance at Dec. 31, 2015	$ 330.6	$ 48.9	$ 599.6	$ 561.3	$ (891.9)	$ 12.7
Beginning balance, Shares at Dec. 31, 2015		48.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	28.8			21.7		7.1
Other comprehensive income	34.2				32.7	1.5
Common stock issued	3.0	$ 0.1	2.9
Common stock issued, Shares		0.1
Dividends to:
Brink’s common shareholders ($0.30 per share)	(14.8)			(14.8)
Noncontrolling interests	(3.4)					(3.4)
Share-based compensation:
Compensation expense	6.7		6.7
Consideration from exercise of stock options	10.9	$ 0.4	10.5
Consideration from exercise of stock options, Shares		0.4
Other share-based benefit programs	(4.0)	$ 0.5	(4.4)	(0.1)
Other share-based benefit programs, shares		0.5
Ending balance at Sep. 30, 2016	$ 392.0	$ 49.9	$ 615.3	$ 568.1	$ (859.2)	$ 17.9
Ending balance, Shares at Sep. 30, 2016		49.9