Operations by Segments and Geographic Areas- Schedule of Disaggregated Revenue by Major Product Classification (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	$ 110,639	$ 111,715	$ 111,691	$ 108,176	$ 108,241	$ 106,438	$ 104,846	$ 102,437	$ 442,221	$ 421,962	$ 394,096
Banking Solutions
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									97,785	93,956	91,851
Subscriptions
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									339,410	295,633	$ 262,363
Operating Segments | Payment Settlement Solutions
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									167,547	155,442
Operating Segments | Banking Solutions
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									97,785	93,956
Operating Segments | Legal Spend Management
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									84,802	76,664
Operating Segments | Subscriptions | Payment Settlement Solutions
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									149,109	131,433
Operating Segments | Subscriptions | Banking Solutions
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									80,176	67,680
Operating Segments | Subscriptions | Legal Spend Management
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									84,802	76,663
All other | All other
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									92,087	95,900
All other | Subscriptions | All other
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues									$ 25,323	$ 19,857