Basis of presentation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Reclassification [Line items]
Equipment expenses	$ 8,412	$ 8,389
Professional fees	33,431	36,792
Technology and software expenses	68,559	70,535
Processing and transactional services	33,909	30,953
Communications	4,088	3,673
Other operating expenses	$ 24,361	23,930
Net effect on operating expenses		174,272
As Reported
Reclassification [Line items]
Equipment expenses		23,479
Professional fees		108,497
Technology and software expenses		0
Processing and transactional services		0
Communications		6,147
Other operating expenses		36,149
Net effect on operating expenses		174,272
Adjustments
Reclassification [Line items]
Equipment expenses		(15,090)
Professional fees		(71,705)
Technology and software expenses		70,535
Processing and transactional services		30,953
Communications		(2,474)
Other operating expenses		(12,219)
Net effect on operating expenses		$ 0