Summary of Significant Accounting Policies and Practices Settlement assets and obligation (Tables)

12 Months Ended

Dec. 31, 2019

Settlement Assets and Liabilities [Line Items]

Settlement Assets and Liabilities [Table Text Block]

(in thousands)	As of December 31, 2019		As of December 31, 2018
Settlement assets:
Settlement cash and cash equivalents	$	282,188	$	273,948
Settlement restricted cash	49,168		45,358
Account receivables	574,410		491,102
Prepaid expenses and other current assets	107,301		105,052
Total settlement assets	$	1,013,067	$	915,460
Settlement obligations:
Trade account payables	$	504,667	$	456,005
Accrued expenses and other current liabilities	508,400		459,455
Total settlement obligations	$	1,013,067	$	915,460