Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2016	Jul. 26, 2016
Document And Entity Information [Abstract]
Document Type	10-Q
Document Fiscal Year Focus	2016
Amendment Flag	false
Document Period End Date	Jun. 30, 2016
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		49,535,599
Trading Symbol	bco