Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Jul. 27, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Document Fiscal Year Focus	2015
Amendment Flag	false
Document Period End Date	Jun. 30, 2015
Document Fiscal Period Focus	Q2
Entity Registrant Name	BRINKS CO
Entity Central Index Key	0000078890
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		48,847,646
Trading Symbol	bco