Revenue from contracts with customers (Tables)

9 Months Ended

Sep. 30, 2021

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
Three months ended September 30, 2021
Reportable Segments:
North America	$	178.1	182.6	—	360.7
Latin America	171.0		113.3	5.0	289.3
Europe	119.4		81.8	36.8	238.0
Rest of World	56.6		117.6	13.3	187.5
Total reportable segments	$	525.1	495.3	55.1	1,075.5
Three months ended September 30, 2020
Reportable Segments:
North America	$	176.3	140.5	—	316.8
Latin America	154.9		97.2	4.6	256.7
Europe	115.4		71.7	36.9	224.0
Rest of World	53.4		113.2	6.4	173.0
Total reportable segments	$	500.0	422.6	47.9	970.5
Nine months ended September 30, 2021
Reportable Segments:
North America	$	534.0	500.6	—	1,034.6
Latin America	495.2		323.3	13.3	831.8
Europe	346.8		230.9	105.5	683.2
Rest of World	166.7		348.1	37.6	552.4
Total reportable segments	$	1,542.7	1,402.9	156.4	3,102.0
Nine months ended September 30, 2020
Reportable Segments:
North America	$	517.8	414.2	—	932.0
Latin America	479.0		294.7	12.4	786.1
Europe	259.7		159.5	99.0	518.2
Rest of World	120.2		301.4	11.4	433.0
Total reportable segments	$	1,376.7	1,169.8	122.8	2,669.3

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, 2021)	$	679.1	0.4	15.1
Closing (September 30, 2021)	728.2		6.5	15.1
Increase (decrease)	$	49.1	6.1	—