Consolidated Statements of Income (Loss) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Income Statement [Abstract]
Revenues	$ 760.3	$ 859.0	$ 1,536.4	$ 1,808.6
Costs and expenses:
Cost of revenues	620.9	718.9	1,250.0	1,478.6
Selling, general and administrative expenses	120.0	130.8	232.3	271.3
Total costs and expenses	740.9	849.7	1,482.3	1,749.9
Other operating expense	(34.0)	(0.6)	(55.8)	(123.7)
Operating profit (loss)	(14.6)	8.7	(1.7)	(65.0)
Interest expense	(4.7)	(5.9)	(9.6)	(11.7)
Interest and other income	0.4	0.6	0.8	0.6
Income (loss) from continuing operations before tax	(18.9)	3.4	(10.5)	(76.1)
Provision for income taxes	7.6	4.1	23.1	12.8
Loss from continuing operations	(26.5)	(0.7)	(33.6)	(88.9)
Income (loss) from discontinued operations, net of tax	0.1	0.7	(2.3)	1.2
Net loss	(26.4)	0.0	(35.9)	(87.7)
Less net loss attributable to noncontrolling interests	(13.5)	(1.6)	(20.0)	(30.8)
Net income (loss) attributable to Brink’s	(12.9)	1.6	(15.9)	(56.9)
Amounts attributable to Brink’s
Continuing operations	(13.0)	0.9	(13.6)	(58.1)
Discontinued operations	0.1	0.7	(2.3)	1.2
Net income (loss) attributable to Brink’s	$ (12.9)	$ 1.6	$ (15.9)	$ (56.9)
Basic:
Continuing operations (dollars per share)	$ (0.26)	$ 0.02	$ (0.28)	$ (1.19)
Discontinued operations (dollars per share)	0.00	0.01	(0.05)	0.02
Net income (loss) (dollars per share)	(0.26)	0.03	(0.32)	(1.16)
Diluted:
Continuing operations (dollars per share)	(0.26)	0.02	(0.28)	(1.19)
Discontinued operations (dollars per share)	0.00	0.01	(0.05)	0.02
Net income (loss) (dollars per share)	$ (0.26)	$ 0.03	$ (0.32)	$ (1.16)
Weighted-average shares
Basic (shares)	49.3	49.0	49.2	49.0
Diluted (shares)	49.3	49.4	49.2	49.0
Cash dividends paid per common share (dollars per share)	$ 0.10	$ 0.10	$ 0.20	$ 0.20