Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net loss	$ (26.4)	$ 0.0	$ (35.9)	$ (87.7)
Benefit plan adjustments:
Benefit plan experience gains	13.4	9.1	27.6	19.6
Benefit plan prior service cost	(0.5)	(0.5)	(3.5)	(0.9)
Deferred profit sharing	0.2	0.0	0.2
Total benefit plan adjustments	13.1	8.6	24.3	18.7
Foreign currency translation adjustments	6.9	8.3	(43.5)	4.1
Unrealized net gains (losses) on available-for-sale securities	(0.1)	(0.1)	(0.1)	(0.1)
Gains (losses) on cash flow hedges	0.4	(0.6)	0.4	0.0
Other comprehensive income (loss) before tax	20.3	16.2	(18.9)	22.7
Provision for income taxes	4.5	3.3	8.5	7.0
Other comprehensive income (loss)	15.8	12.9	(27.4)	15.7
Comprehensive income (loss)	(10.6)	12.9	(63.3)	(72.0)
Less comprehensive loss attributable to noncontrolling interests	(13.0)	(0.5)	(20.9)	(30.4)
Comprehensive income (loss) attributable to Brink's	$ 2.4	$ 13.4	$ (42.4)	$ (41.6)