Revenue Recognition - Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Disaggregation of Revenue [Line Items]
Total revenues	$ 340,175	$ 401,950	$ 1,017,346	$ 1,144,634
ATM operating revenues
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	329,837		978,789
Total revenues	329,837	390,143	978,789	1,105,191
Surcharge Related Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	149,064		432,670
Interchange Related Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	104,309		318,008
Bank Branding And Surcharge Free Network Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	45,128		133,565
Managed Services Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	16,348		50,649
Other Service Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	14,988		43,897
ATM product sales and other revenues
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	10,338		38,557
Total revenues	10,338	$ 11,807	38,557	$ 39,443
ATM product sales
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	8,164		31,989
Other Miscellaneous Activities [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	2,174		6,568
North America
Disaggregation of Revenue [Line Items]
Total revenues	208,748		625,426
North America | ATM operating revenues
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	200,481		593,400
North America | Surcharge Related Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	92,572		272,372
North America | Interchange Related Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	36,620		108,259
North America | Bank Branding And Surcharge Free Network Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	45,128		133,565
North America | Managed Services Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	12,240		38,331
North America | Other Service Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	13,921		40,873
North America | ATM product sales and other revenues
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	8,267		32,026
North America | ATM product sales
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	7,587		30,163
North America | Other Miscellaneous Activities [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	680		1,863
Europe And Africa
Disaggregation of Revenue [Line Items]
Total revenues	104,838		311,132
Europe And Africa | ATM operating revenues
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	102,819		304,809
Europe And Africa | Surcharge Related Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	34,134		91,191
Europe And Africa | Interchange Related Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	66,039		205,910
Europe And Africa | Other Service Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	2,646		7,708
Europe And Africa | ATM product sales and other revenues
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	2,019		6,323
Europe And Africa | ATM product sales
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	557		1,741
Europe And Africa | Other Miscellaneous Activities [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	1,462		4,582
Australia And New Zealand
Disaggregation of Revenue [Line Items]
Total revenues	29,469		89,286
Australia And New Zealand | ATM operating revenues
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	29,417		89,078
Australia And New Zealand | Surcharge Related Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	22,358		69,107
Australia And New Zealand | Interchange Related Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,650		3,839
Australia And New Zealand | Managed Services Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	4,108		12,318
Australia And New Zealand | Other Service Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	1,301		3,814
Australia And New Zealand | ATM product sales and other revenues
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	52		208
Australia And New Zealand | ATM product sales
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	20		85
Australia And New Zealand | Other Miscellaneous Activities [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	32		123
Segment Eliminations
Disaggregation of Revenue [Line Items]
Total revenues	(2,880)		(8,498)
Segment Eliminations | ATM operating revenues
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(2,880)		(8,498)
Segment Eliminations | Other Service Operations [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	$ (2,880)		$ (8,498)