Consolidated Statements of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Statement of Income and Comprehensive Income [Abstract]
Net income (loss)	$ (87.7)	$ (12.9)
Benefit plan adjustments:
Benefit plan experience gains (losses)	10.5	17.8
Benefit plan prior service (costs) credits	(0.4)	1.0
Total benefit plan adjustments	10.1	18.8
Foreign currency translation adjustments	(4.2)	(6.7)
Gains (losses) on cash flow hedges	0.6	(0.4)
Other comprehensive income (loss), before tax	6.5	11.7
Provision (benefit) for income taxes	3.7	6.5
Other comprehensive income (loss)	2.8	5.2
Comprehensive income (loss)	(84.9)	(7.7)
Less comprehensive income (loss) attributable to noncontrolling interests	(29.9)	3.1
Comprehensive income (loss) attributable to Brink's	$ (55.0)	$ (10.8)