Revenue from contracts with customers (Tables)

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

Revenue Disaggregated by Reportable Segment and Type of Service

(In millions)	Core Services		High-Value Services	Other Security Services	Total
Twelve months ended December 31, 2020
Reportable Segments:
North America	$	702.8	558.6	—	1,261.4
Latin America	650.5		404.6	16.8	1,071.9
Europe	382.0		239.0	132.8	753.8
Rest of World	173.8		411.5	18.5	603.8
Total reportable segments	1,909.1		1,613.7	168.1	3,690.9
Twelve months ended December 31, 2019
Reportable Segments:
North America	$	794.6	575.8	—	1,370.4
Latin America	806.9		501.6	11.3	1,319.8
Europe	232.1		185.5	132.0	549.6
Rest of World	119.7		318.0	2.2	439.9
Total reportable segments	1,953.3		1,580.9	145.5	3,679.7
Not Allocated to Segments:
Acquisitions and dispositions	—		(0.5)	—	(0.5)
Internal loss(a)	—		4.0	—	4.0
Total	$	1,953.3	1,584.4	145.5	3,683.2
Twelve months ended December 31, 2018
Reportable Segments:
North America	$	602.6	498.4	—	1,101.0
Latin America	742.4		527.3	11.9	1,281.6
Europe	247.2		192.4	173.0	612.6
Rest of World	110.0		330.2	2.1	442.3
Total reportable segments	1,702.2		1,548.3	187.0	3,437.5
Not Allocated to Segments:
Venezuela(b)	18.4		33.0	—	51.4
Total	$	1,720.6	1,581.3	187.0	3,488.9

(a)See details regarding the Internal loss and the impact on revenues in Note 1.

(b)Represents revenues from our Venezuela operations prior to June 30, 2018 deconsolidation. See Note 1 for details.

Contract with Customer, Asset and Liability

The opening and closing balances of receivables, contract assets and contract liabilities related to contracts with customers are as follows:

(In millions)	Receivables		Contract Asset	Contract Liability
Opening (January 1, 2020)	$	635.6	1.9	12.8
Closing (December 31, 2020)	679.1		0.4	15.1
Increase (decrease)	$	43.5	(1.5)	2.3