Settlement Processing Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Settlement processing assets:
Receivable from card networks	$ 219,654	$ 195,817
Receivable from merchants	90,552	52,513
Totals	310,206	248,330
Settlement processing obligations:
Settlement liabilities	(375,552)	(320,492)
Merchant reserves	(92,224)	(107,836)
Totals	$ (467,776)	$ (428,328)